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Expert Consensus Statement for Telepsychiatry and Attention Deficit Hyperactivity Disorder
- Jennifer Hong, Gregory W. Mattingly, Julie A. Carbray, Takesha V. Cooper, Robert L. Findling, Martin Gignac, Paul E. Glaser, Frank A. Lopez, Vladamir Maletic, Roger S. McIntyre, Adelaide S. Robb, Manpreet K. Singh, Mark Stein, Stephen M. Stahl
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- CNS Spectrums / Accepted manuscript
- Published online by Cambridge University Press:
- 20 May 2024, pp. 1-34
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TwinsMX: Exploring the Genetic and Environmental Influences on Health Traits in the Mexican Population
- Brisa García-Vilchis, Talia V. Román-López, Diego Ramírez-González, Xanat J. López-Camaño, Vanessa Murillo-Lechuga, Xóchitl Díaz-Téllez, C. Itzamná Sánchez-Moncada, Ian M. Espinosa-Méndez, Diego Zenteno-Morales, Zaida X. Espinosa-Valdes, Sofia Pradel-Jiménez, Andrea Tapia-Atilano, Ana V. Zanabria-Pérez, Federica Livas-Gangas, Oscar Aldana-Assad, Ulises Caballero-Sánchez, César A. Dominguez-Frausto, Miguel E. Rentería, Alejandra Medina-Rivera, Sarael Alcauter, Alejandra E. Ruiz-Contreras
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- Journal:
- Twin Research and Human Genetics / Volume 27 / Issue 2 / April 2024
- Published online by Cambridge University Press:
- 03 May 2024, pp. 85-96
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TwinsMX registry is a national research initiative in Mexico that aims to understand the complex interplay between genetics and environment in shaping physical and mental health traits among the country’s population. With a multidisciplinary approach, TwinsMX aims to advance our knowledge of the genetic and environmental mechanisms underlying ethnic variations in complex traits and diseases, including behavioral, psychometric, anthropometric, metabolic, cardiovascular and mental disorders. With information gathered from over 2800 twins, this article updates the prevalence of several complex traits; and describes the advances and novel ideas we have implemented such as magnetic resonance imaging. The future expansion of the TwinsMX registry will enhance our comprehension of the intricate interplay between genetics and environment in shaping health and disease in the Mexican population. Overall, this report describes the progress in the building of a solid database that will allow the study of complex traits in the Mexican population, valuable not only for our consortium, but also for the worldwide scientific community, by providing new insights of understudied genetically admixed populations.
Sorption of Naringin from Aqueous Solution by Modified Clay
- Sofia Arellano-Cardenas, Tzayhri Gallardo-Velazquez, Gloria V. Poumian-Gamboa, Guillermo Osorio-Revilla, Socorro Lopez-Cortez, Yadira Rivera-Espinoza
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- Clays and Clay Minerals / Volume 60 / Issue 2 / April 2012
- Published online by Cambridge University Press:
- 01 January 2024, pp. 153-161
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The flavonoid naringin is the main source of the undesirable bitter taste in some citrus juices. In commercial debittering processes, the naringin is adsorbed on non-ionic polymeric resins. Organo-clays (OCs), which have been used as sorbents for organic pollutants, could also have affinity for the naringin molecule, and thus potentially could serve as a debittering agent. The objective of the present study was to characterize the sorption capacity of a prepared OC to evaluate its ability to remove naringin from aqueous solutions, investigating the effect of adsorbent dose, initial concentration of naringin, temperature, contact time, and pH. The OC was prepared by the intercalation of cationic surfactant hexadecyltrimethylammonium bromide in a Mexican bentonite. The host clay and the OC were characterized by X-ray diffraction, Fourier-transform infrared, and nitrogen gas adsorption. The OC showed a surface area of 9.3 m2 g-1, 11.35 nm average pore diameter, and a basal spacing, d001, of 2.01 nm. The adsorbent removed naringin at the rate of 60-72% at 25°C and pH 3. The sorption capacity increased with pH and temperature. Experimental data were well fitted by both Langmuir and Freundlich adsorption models. Most of the sorption took place during the first 10 min and the equilibrium time was reached within 720 min. The rate of sorption was adjusted to pseudo second-order kinetics.
Proton and helium ions acceleration in near-critical density gas targets by short-pulse Ti:Sa PW-class laser
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- J.L. Henares, P. Puyuelo-Valdes, C. Salgado-López, J.I. Apiñaniz, P. Bradford, F. Consoli, D. de Luis, M. Ehret, F. Hannachi, R. Hernández-Martín, A. Huber, L. Lancia, M. Mackeviciute, A. Maitrallain, J.-R. Marquès, J.A. Pérez-Hernández, C. Santos, J.J. Santos, V. Stankevic, M. Tarisien, V. Tomkus, L. Volpe, G. Gatti
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- Journal:
- Journal of Plasma Physics / Volume 89 / Issue 6 / December 2023
- Published online by Cambridge University Press:
- 28 December 2023, 965890601
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The ability to quickly refresh gas-jet targets without cycling the vacuum chamber makes them a promising candidate for laser-accelerated ion experiments at high repetition rate. Here we present results from the first high repetition rate ion acceleration experiment on the VEGA-3 PW-class laser at CLPU. A near-critical density gas-jet target was produced by forcing a 1000 bar H$_2$ and He gas mix through bespoke supersonic shock nozzles. Proton energies up to 2 MeV were measured in the laser forward direction and 2.2 MeV transversally. He$^{2+}$ ions up to 5.8 MeV were also measured in the transverse direction. To help maintain a consistent gas density profile over many shots, nozzles were designed to produce a high-density shock at distances larger than 1 mm from the nozzle exit. We outline a procedure for optimizing the laser–gas interaction by translating the nozzle along the laser axis and using different nozzle materials. Several tens of laser interactions were performed with the same nozzle which demonstrates the potential usefulness of gas-jet targets as high repetition rate particle source.
22 Cognitive Reserve's Relationship to Brain Burden in Parkinson's Disease Without Dementia
- Lauren E. Kenney, Jared Tanner, Samuel J. Crowley, Thomas H. Mareci, Francesca V. Lopez, Adrianna M. Ratajska, Katie Rodriguez, Rachel Schade, Joshua Gertler, Catherine C. Price, Dawn Bowers
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- Journal:
- Journal of the International Neuropsychological Society / Volume 29 / Issue s1 / November 2023
- Published online by Cambridge University Press:
- 21 December 2023, pp. 539-540
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Objective:
Individuals with Parkinson's disease (PD) have varying trajectories of cognitive decline. One reason for this heterogeneity may be "cognitive reserve": where higher education/IQ/current mental engagement compensates for increasing brain burden (Stern et al., 2020). With few exceptions, most studies examining cognitive reserve in PD fail to include brain metrics. This study's goal was to examine whether cognitive reserve moderated the relationship between neuroimaging indices of brain burden (diffusion free water fraction and T2-weighted white matter changes) and two commonly impaired domains in PD: executive function and memory. We hypothesized cognitive reserve would mitigate the relationship between higher brain burden and worse cognitive performance.
Participants and Methods:Participants included 108 individuals with PD without dementia (age mean=67.9±6.3, education mean=16.6±2.5) who were prospectively recruited for two NIH-funded projects at the University of Florida. All received neuropsychological measures of executive function (Trails B, Stroop, Letter Fluency) and memory (delayed recall: Hopkin's Verbal Learning Test-Revised, WMS-III Logical Memory). Domain specific z-score composites were created using data from age/education matched non-PD peer controls (N=62). For the Cognitive Reserve (CR) proxy, a z-score composite included years of education, WASI-II Vocabulary, and Wechsler Test of Adult Reading. At the time of testing, participants completed multiple MRI scans (T1-weighted, diffusion, Fluid Attenuated Inversion Recovery) from which the following were extracted: 1) whole-brain free water within the white matter (a measure of microstructural integrity and neuroinflammation), 2) white matter hyperintensities/white matter total volume (WMH/WMV), and bilaterally-averaged edge weights of white matter connectivity between 3) dorsolateral prefrontal cortex and caudate and 4) entorhinal cortex and hippocampi. Separate linear regressions for each brain metric used executive function and memory composites as dependent variables; predictors were age, CR proxy, respective brain metric, and a residual centered interaction term (brain metric*CR proxy). Identical models were run in dichotomized short and long disease duration groups (median split=6 years).
Results:In all models, a lower CR proxy significantly predicted worse executive function (WMH/WMV: beta=0.49, free water: beta=0.54, frontal edge weight: beta=0.49, p's<0.001) and memory (WMH/WMV: beta=0.42, free water: beta=0.35, temporal edge weight: beta=0.39, p's <0.01). For neuroimaging metrics, higher free water significantly predicted worse executive function (beta=-0.39, p=0.002) but not memory. No other brain metrics were significant predictors of either domain. Accounting for PD duration, higher free water predicted worse executive function for those with both short (beta=-0.49, p=0.04) and long disease duration (beta=-0.48, p=0.02). Specifically in those with long disease duration, higher free water (beta=-0.57 p=0.02) and lower edge weights between entorhinal cortex and hippocampi (beta=0.30, p=0.03) predicted worse memory. Overall, no models contained significant interactions between the CR proxy and any brain metric.
Conclusions:Results replicate previous work showing that a cognitive reserve proxy relates to cognition. However, cognitive reserve did not moderate brain burden's relationship to cognition. Across the sample, greater neuroinflammation was associated with worse executive function. For those with longer disease duration, higher neuroinflammation and lower medial temporal white matter connectivity related to worse memory. Future work should examine other brain burden metrics to determine whether/how cognitive reserve influences the cognitive trajectory of PD.
3 The Relationship Between Depression, Anxiety, and Autonomic Dysfunction in de novo Parkinson’s Disease Patients Over Time
- Adrianna M. Ratajska, Francesca V. Lopez, Lauren E. Kenney, Katie Rodriguez, Rachel Schade, Joshua Gertler, Dawn Bowers
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- Journal:
- Journal of the International Neuropsychological Society / Volume 29 / Issue s1 / November 2023
- Published online by Cambridge University Press:
- 21 December 2023, pp. 109-110
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Objective:
Autonomic dysfunction is an important non-motor symptom of Parkinson’s disease (PD), with point prevalence estimates of approximately 50-70%. Common presentations include cardiovascular dysregulation, gastrointestinal dysfunction, impaired thermoregulation, and sexual dysfunction. In the present study, we sought to examine whether autonomic symptoms would predict trajectories of change in depression and anxiety over a 5-year period in newly diagnosed individuals with PD. Given that alterations in autonomic nervous system functioning (e.g., reduced heart rate variability, lower autonomic arousal) are frequently observed in individuals who have anxiety and depression, as well as the negative influence these symptoms can have on quality of life/functioning, we predicted that greater autonomic symptoms would be related to increased mood symptoms over time.
Participants and Methods:Participants included 414 individuals from the Parkinson’s Progression Markers Initiative, a prospective study of newly diagnosed and untreated individuals with PD. The PD participants (mean age=61.6+9.7, mean education=15.6+3.0, 92.5% non-Hispanic White) were followed annually for up to five years. Self-reported autonomic symptoms were measured using the Scales for Outcomes in Parkinson’s Disease-Autonomic Dysfunction (SCOPA-AUT), which consists of a total score and 6 subdomain scores (gastrointestinal, urinary, cardiovascular, thermoregulatory, pupillomotor, sexual). Mood measures included the Geriatric Depression Scale (GDS) and State-Trait Anxiety Inventory (STAI). Motor severity was assessed using the Unified Parkinson’s Disease Rating Scale (UPDRS) Part III. Bootstrapped linear regressions were performed to evaluate the relationship between autonomic symptoms (subdomains) and mood using data from the last visit (year 5). For longitudinal analyses, bootstrapped multilevel modeling was used to examine a) changes in SCOPA-AUT total over time (unconditional growth model only) and b) the relationship between mood and SCOPA-AUT total score over time, controlling for age/sex and motor severity.
Results:Autonomic symptoms explained 28.2% of the total variance in trait anxiety, with unique predictors of gastrointestinal (/3=.266, p<.001) and thermoregulatory (ß=.202, p=.004) symptoms. For depression, autonomic symptoms explained 27.9% of the total variance, with unique predictors of gastrointestinal (ß=.225, p=.012), thermoregulatory (ß=.178, p=.013), and cardiovascular (ß=.154, p=.012) symptoms. There was a gradual linear increase in total autonomic symptoms over time (b=0.86, p<.001). Greater total autonomic symptoms were associated with higher average trait anxiety (b=0.54, p<.001), slightly greater increase in trait anxiety over time (b=0.04, p<.05), and occasion-to-occasion fluctuations in trait anxiety (b=0.24, p<.001). Similarly, increased total autonomic symptoms were associated with higher average depressive symptoms (b=0.14, p<.001), minimally greater increase in depressive symptoms over time (b=0.01, p<.05), and occasion-to-occasion fluctuations in depressive symptoms (b=0.08, p<.001). Motor severity did not explain individual differences or trajectories of change in depression or trait anxiety.
Conclusions:Autonomic symptoms, particularly gastrointestinal, cardiovascular, and thermoregulatory dysfunction, were related to increased mood symptoms in PD patients and predicted increases in depression/anxiety over time. Our findings do not distinguish between two theoretical possibilities - whether autonomic symptoms lead to depression/anxiety versus involvement of co-occurring neural systems underlying both. Regardless, our study highlights the importance of treating autonomic dysfunction in early PD, and future work should incorporate additional measures of autonomic dysfunction (e.g., physiological probes).
20 Laterality of Motor Symptom Onset is Not Associated with Cognitive Performance or Mood Symptoms in a Sample of 600 Individuals with Idiopathic Parkinson’s Disease”
- Joshua Gertler, Lauren Kenney, Adrianna M Ratajska, Francesca V Lopez, Katie Rodriguez, Rachel Schade, Dawn Bowers
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- Journal:
- Journal of the International Neuropsychological Society / Volume 29 / Issue s1 / November 2023
- Published online by Cambridge University Press:
- 21 December 2023, pp. 537-538
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Objective:
Parkinson’s disease (PD) is typically characterized by unilateral onset of motor symptoms (i.e., tremors, rigidity) which is caused by dopaminergic degeneration of the substantia nigra that influences basal ganglia-prefrontal circuitry. Over time, motor symptoms become more bilateral, though continue to remain asymmetric. Many neuropsychological studies suggest that laterality of motor onset may be linked to hemispheric specific cognitive or mood changes. Namely, worse verbal/language performance may be present in individuals with right body (left hemisphere) onset and conversely for visuospatial performance, with depression symptoms relating more so to individuals with right body (left hemisphere) onset. To date, findings are often inconsistent, with some studies showing evidence for laterality effects and others not. The basis for this inconsistency is unclear, though one possibility relates to small sample sizes and varying methodologies. Thus, the goal of this study was to examine potential cognitive and mood laterality effects in a large clinical sample of individuals with PD.
Participants and Methods:Participants included a convenience sample of 600 nondemented individuals with idiopathic PD from the University of Florida Fixel Institute Movement Disorders Center. As a group, participants were around 60 years of age (Mean Age=63.9+9.4), well educated (Mean years=14.9+2.7), predominantly male (70%), and white non-Hispanic (93%). Side of initial motor symptom onset was based on self-report: Right (N=337) and Left (N=263). Approximately 79% were tremor predominant. All received mood and neurocognitive measures as part of standard clinical care, including indices of executive function (Stroop Color-Word, Trails B, Letter Fluency), recent verbal memory (delayed recall: Hopkin’s Verbal Learning Test, WMS-III Logical Memory), language (Boston Naming Test, Animal fluency), visuospatial skills (Judgment of Line Orientation, Facial Recognition Test). Evaluation of emotion symptoms included: depression (Beck Depression Inventory-II), apathy (Apathy Scale), and anxiety (State-Trait Anxiety Inventory). Analyses used raw scores from these measures. Due to non-normality of most measures’ distributions, laterality effects were examined using bootstrapped multivariate methods (multivariate analysis of variance [MANOVA]). Separate MANOVA’s were run for each cognitive domain (i.e., EF, language, etc.) and mood measures.
Results:The right and left sided onset groups did not significantly differ in demographic (age, education, sex) or disease characteristics (duration, PD subtype). Results of the MANOVA’s with cognitive variables were all nonsignificant broadly (all with F’s ranging from .33 to .94) and at the single test level. Similarly, the left and right onset groups did not significantly differ (a=0.05) across standard scales of depression (F=0.031), anxiety (Trait F=0.463; State F=3.29), and apathy (F=0.74).
Conclusions:We found no evidence that laterality of initial motor symptoms influenced cognitive or mood symptoms in a large cohort of 600 individuals with PD. These findings raise questions about importance of motor onset laterality for cognitive and emotion related changes in PD. Future studies should move beyond self-report and behavioral motor scales for determining hemispheric contributions. In PD, use of refined metrics for determining the extent of asymmetric dopaminergic degeneration (e.g., DAT scan) at the hemispheric level coupled with sensitive neuropsychological measures may provide clearer understanding of potential neural circuitry relationships.
18 Regional patterns of mitochondrial function using phosphorus magnetic resonance spectroscopy in older adults at-risk for Alzheimer’s disease.
- Francesca V Lopez, Andrew O’Shea, Stacey Alvarez-Alvarado, Adrianna Ratajska, Lauren Kenney, Rachel Schade, Katie Rodriguez, Alyssa Ray, Rebecca O’Connell, Lauren Santos, Emily Van Etten, Hyun Song, Emma Armstrong, Tiffany Gin, Zhiguang Huo, Gene Alexander, Adam J Woods, Dawn Bowers
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- Journal:
- Journal of the International Neuropsychological Society / Volume 29 / Issue s1 / November 2023
- Published online by Cambridge University Press:
- 21 December 2023, pp. 331-332
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Objective:
The brain is reliant on mitochondria to carry out a host of vital cellular functions (e.g., energy metabolism, respiration, apoptosis) to maintain neuronal integrity. Clinically relevant, dysfunctional mitochondria have been implicated as central to the pathogenesis of Alzheimer’s disease (AD). Phosphorous magnetic resonance spectroscopy (31p MRS) is a non-invasive and powerful method for examining in vivo mitochondrial function via high energy phosphates and phospholipid metabolism ratios. At least one prior 31p MRS study found temporal-frontal differences for high energy phosphates in persons with mild AD. The goal of the current study was to examine regional (i.e., frontal, temporal) 31p MRS ratios of mitochondrial function in a sample of older adults at-risk for AD. Given the high energy consumption in temporal lobes (i.e., hippocampus) and preferential age-related changes in frontal structure-function, we predicted 31p MRS ratios of mitochondrial function would be greater in temporal as compared to frontal regions.
Participants and Methods:The current study leveraged baseline neuroimaging data from an ongoing multisite study at the University of Florida and University of Arizona. Participants were older adults with memory complaints and a first-degree family history of AD [N = 70; mean [M] age [years] = 70.9, standard deviation [SD] =5.1; M education [years] = 16.2, SD = 2.2; M MoCA = 26.5, SD = 2.4; 61.4% female; 91.5% non-latinx white]. To achieve optimal sensitivity, we used a single voxel method to examine 31p MRS ratios (bilateral prefrontal and left temporal). Mitochondrial function was estimated by computing 5 ratios for each voxel: summed adenosine triphosphate to total pooled phosphorous (ATP/TP; momentary energy), ATP to inorganic phosphate (ATP/Pi; energy consumption), phosphocreatine to ATP (PCr/ATP; energy reserve), phosphocreatine to inorganic phosphate (PCr/Pi; oxidative phosphorylation), and phosphomonoesters to phosphodiesters (PME/PDE; cellular membrane turnover rate). All ratios were corrected for voxel size and cerebrospinal fluid fraction. Separate repeated measures analyses of variance controlling for scanner site differences (RM ANCOVAs) were performed.
Results:31p MRS ratios were unrelated to demographic characteristics and were not included as additional covariates in analyses. Results of separate RM ANCOVAs revealed all 31p MRS ratios of mitochondrial function were greater in left temporal relative to bilateral prefrontal voxel: ATP/TP (p < .001), ATP/Pi (p = .001), PCr/ATP (p = .004), PCr/Pi (p = .004), and PME/PDE (p = .017). Effect sizes (partial eta squared) ranged from 0.6-.20.
Conclusions:Consistent and extending one prior study, all 31p MRS ratios of mitochondrial function were greater in temporal as compared to frontal regions in older adults at-risk for AD. This may in part be related to the intrinsically high metabolic rate of the temporal region and preferential age-related changes in frontal structure-function. Alternatively, findings may reflect the influence of unaccounted factors (e.g., hemodynamics, auditory stimulation). Longitudinal study designs may inform whether patterns of mitochondrial function across different brain regions are present early in development, occur across the lifespan, or some combination. In turn, this may inform future studies examining differences in mitochondrial function (as measured using 31p MRS) in AD.
39 Perceived Workload and Language Order Effects on the Cordoba Naming Test in Spanish-English Bilinguals
- Krissy E. Smith, Isabel D. C. Munoz, Raymundo Cervantes, Andrea R. Preciado, Tara L. Victor, Natalia Garcia, Paula V. Bracho, Enrique Lopez, Alberto L. Fernandez, Yvette De Jesus, Daniel W. Lopez-Hernandez
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- Journal:
- Journal of the International Neuropsychological Society / Volume 29 / Issue s1 / November 2023
- Published online by Cambridge University Press:
- 21 December 2023, pp. 451-452
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Objective:
The Cordoba Naming Test (CNT) is a 30-item confrontation naming task. The administration of the CNT can be administered in multiple languages. Hardy and Wright (2018) conditionally validated a measure of perceived mental workload called the National Aeronautic Space Administration Task Load Index (NASA-TLX). They found that workload ratings on the NASA-TLX increased with increased demands on a cognitive task. Researchers found interactions in a study examining language proficiency and language (i.e., in which the test was administered) on several tasks of the Golden Stroop Test. Their results revealed that unbalanced bilinguals’ best-spoken language showed significantly better results compared to balanced bilinguals’ where language use did not matter. To our knowledge, no study has examined the order effects of Spanish-English bilingual speakers’ CNT performance and perceived workloads when completed in Spanish first compared to English second and vice-versa. We predicted that persons that completed the CNT in English first would demonstrate better performances and report lower perceived workloads on the CNT compared to completing the CNT in Spanish second. In addition, we predicted that persons that completed the CNT in Spanish first would demonstrate worse performance and higher perceived workloads on the CNT compared to completing the CNT in English second.
Participants and Methods:The sample consisted of 62 Spanish-English healthy and neurologically bilingual speakers with a mean age of 19.94 (SD= 3.36). Thirty-seven participants completed the CNT in English first and then in Spanish (English-to-Spanish) and 25 participants completed the CNT in Spanish first and then in English (Spanish-to-English). The NASA-TLX was used to evaluate CNT perceived workloads. All the participants completed the NASA-TLX in English and Spanish after completing the CNT in the language given, respectfully. A series of paired-samples T-Tests were completed to evaluate groups CNT performance and perceived workload.
Results:We found that the English-to-Spanish group performed better on the CNT in English first than completing it in Spanish second, p = .000. We also found that the English-to-Spanish group reported better performance and less mentally demanding on the CNT when it was completed in English first compared to completing it in Spanish second, p’s < .05. Regarding the Spanish-to-English group, we found participants performed worse when they completed the CNT in Spanish first compared to completing the CNT in English second, p = .000. Finally, the Spanish-to-English group reported worse performance completing the CNT in Spanish first, more temporal demanding, and more frustrating compared to completing the CNT in English second, p’s < .05.
Conclusions:As expected, when participants completed the CNT in English, regardless of the order, they performed better and reported lower perceived workloads compared to completing the CNT in Spanish. Our data suggests that language order effect influenced participants CNT performance possibly due to not knowing specific items in Spanish compared to in English. Future studies using larger sample sizes should evaluate language order effects on the CNT in Spanish-English balanced bilingual speakers compared to unbalanced bilingual speakers.
Estimating the Genetic Contribution to Astigmatism and Myopia in the Mexican Population
- Talía V. Román-López, Brisa García-Vilchis, Vanessa Murillo-Lechuga, Enrique Chiu-Han, Xanat López-Camaño, Oscar Aldana-Assad, Santiago Diaz-Torres, Ulises Caballero-Sánchez, Ivett Ortega-Mora, Diego Ramírez-González, Diego Zenteno, Zaida Espinosa-Valdés, Andrea Tapia-Atilano, Sofía Pradel-Jiménez, Miguel E. Rentería, Alejandra Medina-Rivera, Alejandra E. Ruiz-Contreras, Sarael Alcauter
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- Journal:
- Twin Research and Human Genetics / Volume 26 / Issue 4-5 / August 2023
- Published online by Cambridge University Press:
- 16 October 2023, pp. 290-298
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Astigmatism and myopia are two common ocular refractive errors that can impact daily life, including learning and productivity. Current knowledge suggests that the etiology of these conditions is the result of a complex interplay between genetic and environmental factors. Studies in populations of European ancestry have demonstrated a higher concordance of refractive errors in monozygotic (MZ) twins compared to dizygotic (DZ) twins. However, there is a lack of studies on genetically informative samples of multi-ethnic ancestry. This study aimed to estimate the genetic contribution to astigmatism and myopia in the Mexican population. A sample of 1399 families, including 243 twin pairs and 1156 single twins, completed a medical questionnaire about their own and their co-twin’s diagnosis of astigmatism and myopia. Concordance rates for astigmatism and myopia were estimated, and heritability and genetic correlations were determined using a bivariate ACE Cholesky decomposition method, decomposed into A (additive genetic), C (shared environmental) and E (unique environmental) components. The results showed a higher concordance rate for astigmatism and myopia for MZ twins (.74 and .74, respectively) than for DZ twins (.50 and .55). The AE model, instead of the ACE model, best fitted the data. Based on this, heritability estimates were .81 for astigmatism and .81 for myopia, with a cross-trait genetic correlation of rA = .80, nonshared environmental correlation rE = .89, and a phenotypic correlation of rP = .80. These results are consistent with previous findings in other populations, providing evidence for a similar genetic architecture of these conditions in the multi-ethnic Mexican population.
Perception of cognitive change by individuals with Parkinson’s disease or essential tremor seeking deep brain stimulation: Utility of the cognitive change index
- Katie Rodriguez, Rachel N. Schade, Francesca V. Lopez, Lauren E. Kenney, Adrianna M. Ratajska, Joshua Gertler, Dawn Bowers
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- Journal of the International Neuropsychological Society / Volume 30 / Issue 4 / May 2024
- Published online by Cambridge University Press:
- 06 October 2023, pp. 370-379
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Objective:
The Cognitive Change Index (CCI-20) is a validated questionnaire that assesses subjective cognitive complaints (SCCs) across memory, language, and executive domains. We aimed to: (a) examine the internal consistency and construct validity of the CCI-20 in patients with movement disorders and (b) learn how the CCI-20 corresponds to objective neuropsychological and mood performance in individuals with Parkinson’s disease (PD) or essential tremor (ET) seeking deep brain stimulation (DBS).
Methods:216 participants (N = 149 PD; N = 67 ET) underwent neuropsychological evaluation and received the CCI-20. The proposed domains of the CCI-20 were examined via confirmatory (CFA) and exploratory (EFA) factor analyses. Hierarchical regressions were used to assess the relationship among subjective cognitive complaints, neuropsychological performance and mood symptoms.
Results:PD and ET groups were similar across neuropsychological, mood, and CCI-20 scores and were combined into one group who was well educated (m = 15.01 ± 2.92), in their mid-60’s (m = 67.72 ± 9.33), predominantly male (63%), and non-Hispanic White (93.6%). Previously proposed 3-domain CCI-20 model failed to achieve adequate fit. Subsequent EFA revealed two CCI-20 factors: memory and non-memory (p < 0.001; CFI = 0.924). Regressions indicated apathy and depressive symptoms were associated with greater memory and total cognitive complaints, while poor executive function and anxiety were associated with more non-memory complaints.
Conclusion:Two distinct dimensions were identified in the CCI-20: memory and non-memory complaints. Non-memory complaints were indicative of worse executive function, consistent with PD and ET cognitive profiles. Mood significantly contributed to all CCI-20 dimensions. Future studies should explore the utility of SCCs in predicting cognitive decline in these populations.
Coronavirus disease 2019 is associated with long-term depressive symptoms in Spanish older adults with overweight/obesity and metabolic syndrome
- Sangeetha Shyam, Carlos Gómez-Martínez, Indira Paz-Graniel, José J. Gaforio, Miguel Ángel Martínez-González, Dolores Corella, Montserrat Fitó, J. Alfredo Martínez, Ángel M. Alonso-Gómez, Julia Wärnberg, Jesús Vioque, Dora Romaguera, José López-Miranda, Ramon Estruch, Francisco J. Tinahones, José Manuel Santos-Lozano, J. Luís Serra-Majem, Aurora Bueno-Cavanillas, Josep A. Tur, Vicente Martín Sánchez, Xavier Pintó, María Ortiz Ramos, Josep Vidal, Maria Mar Alcarria, Lidia Daimiel, Emilio Ros, Fernando Fernandez-Aranda, Stephanie K. Nishi, Oscar García Regata, Estefania Toledo, Jose V. Sorli, Olga Castañer, Antonio Garcia-Rios, Rafael Valls-Enguix, Napoleon Perez-Farinos, M. Angeles Zulet, Elena Rayó-Gago, Rosa Casas, Mario Rivera-Izquierdo, Lucas Tojal-Sierra, Miguel Damas-Fuentes, Pilar Buil-Cosiales, Rebeca Fernández-Carrion, Albert Goday, Patricia J. Peña-Orihuela, Laura Compañ-Gabucio, Javier Diez-Espino, Susanna Tello, Ana González-Pinto, Víctor de la O, Miguel Delgado-Rodríguez, Nancy Babio, Jordi Salas-Salvadó
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- Psychological Medicine / Volume 54 / Issue 3 / February 2024
- Published online by Cambridge University Press:
- 05 September 2023, pp. 620-630
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Background
The coronavirus disease 2019 (COVID-19) has serious physiological and psychological consequences. The long-term (>12 weeks post-infection) impact of COVID-19 on mental health, specifically in older adults, is unclear. We longitudinally assessed the association of COVID-19 with depression symptomatology in community-dwelling older adults with metabolic syndrome within the framework of the PREDIMED-Plus cohort.
MethodsParticipants (n = 5486) aged 55–75 years were included in this longitudinal cohort. COVID-19 status (positive/negative) determined by tests (e.g. polymerase chain reaction severe acute respiratory syndrome coronavirus 2, IgG) was confirmed via event adjudication (410 cases). Pre- and post-COVID-19 depressive symptomatology was ascertained from annual assessments conducted using a validated 21-item Spanish Beck Depression Inventory-II (BDI-II). Multivariable linear and logistic regression models assessed the association between COVID-19 and depression symptomatology.
ResultsCOVID-19 in older adults was associated with higher post-COVID-19 BDI-II scores measured at a median (interquartile range) of 29 (15–40) weeks post-infection [fully adjusted β = 0.65 points, 95% confidence interval (CI) 0.15–1.15; p = 0.011]. This association was particularly prominent in women (β = 1.38 points, 95% CI 0.44–2.33, p = 0.004). COVID-19 was associated with 62% increased odds of elevated depression risk (BDI-II ≥ 14) post-COVID-19 when adjusted for confounders (odds ratio; 95% CI 1.13–2.30, p = 0.008).
ConclusionsCOVID-19 was associated with long-term depression risk in older adults with overweight/obesity and metabolic syndrome, particularly in women. Thus, long-term evaluations of the impact of COVID-19 on mental health and preventive public health initiatives are warranted in older adults.
Electroconvulsive Therapy for Neuroleptic Malignant Syndrome: A case report
- A. Osca Oliver, M. V. López Rodrigo, V. Ros Fons, M. Palomo Monge, A. Osca Oliver, M. F. Tascón
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S1043
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Introduction
Neuroleptic malignant syndrome (NMS) is a rare syndrome observed in around 0.2% of psychiatric patients. This syndrome consists of the presentation of muscular rigidity, tachycardia, hyperpyrexia, leukocytosis and elevated levels of CPK. Any antipsychotic drug, including atypical ones, can cause this syndrome. This being an idiosyncratic response to dopamine receptor antagonist medications.
The use of ECT in patients suffering from NMS is very effective, seeing the progressive resolution of the picture in the first sessions.
ObjectivesThe patient was a 43-year-old man, whose somatic history only highlights hypothyroidism, and according to his psychiatric history, he was diagnosed of mental retardation and paranoid schizophrenia. He was a resident of a group home. And he was recently admitted to a mid-stay psychiatric unit. During this admission, the responsible doctor added haloperidol to his medication regimen. His other medications at the time were; valproic acid, risperidone and trazodone. A few days later, the patient began to present a dysthermic sensation (presenting a temperature of 39ºC) and drowsiness. A laboratory tests and a chest X-ray was performed, highlighting: leukocytosis and an increase in elevated creatine phosphokinase (CPK).
Due to his recent exposure to 2 different antipsychotics, with fever, rigidity, and elevated CPK, we considered NMS. Antipsychotics were withdrawn and supportive measures were started. Within the next 2 days, his CPK level began to decline and the fever and leukocytosis resolved. But without resolving muscle rigidity. At the same time, he began to exhibit staring, negativism and prejudice delusions. Therefore, electroconvulsive therapy sessions were started.
Methods.
ResultsAfter the third session, his catatonic symptoms increased to better; he became more verbal, with less negativism and the psychotic symptomatology ceased. After the fifth session of ECT, he returned to his initial level and was able to walk to the bathroom without assistance and perform other activities of daily living.
ConclusionsIt is extremely important that professionals specialized in psychiatry become familiar with ECT and consider this technique as treatment in cases of neuroleptic malignant syndrome.
Disclosure of InterestNone Declared
A qualitative investigation of healthcare professionals’ viewpoints of the healthcare process of persons with a serious mental illness in prisons with a traditional model for mental health care provision in Spain
- A. Calcedo-Barba, S. Paz Ruiz, V. Estévez Closas, Á. López López, L. F. Barrios, J. Antón Basanta
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S167
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Introduction
Healthcare delivery in prisons depends on the national Ministry of Interior in 14 of 17 autonomous regions in Spain. A traditional model for health and mental health care provision prevails.
ObjectivesTo increase understanding of the mental health care process of imprisoned persons with a serious mental illness (SMI) in Spanish prisons with a traditional model of health care provision.
Methods10 healthcare professionals (6 physicians, 3 nurses, 1 pharmacist) working in small (<450 imprisoners), middle size (450-1,000) and big (>1,000) prisons took part in 3 online focus groups between 31st May and 2nd June 2022. The moderator used open-ended questions to research into the healthcare process (diagnosis, treatment, follow up, prevention) of imprisoners with SMI. Focus groups lasted 2 hours, and were audiotape recorded and transcribed. Transcripts were analysed applying constant comparative method and theoretical saturation.
ResultsMental healthcare provision varies across prisons, but commonalities exist. Healthcare professionals reported that about 60% of SMI are diagnosed by the correctional general practice physician (GP) at incarceration. Severe cases are assessed by an external psychiatrist. Once a week (average) the psychiatrist visits the prison to either confirm diagnoses or adjust treatments. One third of imprisoners who would benefit from a psychiatric assessment has it. Follow up occurs in the prison infirmary for close supervision. If addiction concurs, referral to therapeutic modules happen. Polypharmacy and overmedication are common. Simplification of therapies and slow-release injectable formulations of antipsychotics are desirable. Everyday mental health care and rehabilitation take place throughout a specific, little equipped, psycho-social support programme implemented in most prisons but restricted to the most disabled SMI persons. Acute psychiatric episodes occur due to treatment interruptions or deviations and are managed by the correctional GP. Hospital referrals are problematic without protocols. Prevention of relapses relies on imprisoners supervision and staff observation. Healthcare records are only available to healthcare professionals working in prisons. Outside prisons, continued care needs of mental health and social support in the community. Due to healthcare services modest readiness to respond to needs and poor social networks, SMI persons are prone to relapse and recidivism.
ConclusionsFocus groups found that working in isolation from the public healthcare system, shortage of psychiatrists, poorly implemented therapeutic and rehabilitation programmes, and lack of mental health and social care services in the community negatively affect the care of imprisoners with SMI in Spain.
Disclosure of InterestNone Declared
Late-onset schizophrenia: a differential diagnosis
- M. V. López Rodrigo, M. Palomo Monge, A. Osca Oliver, F. Tascón Guerra, V. Ros Fons
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S1071-S1072
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Introduction
Regarding the diagnosis of schizophrenia, a peak of onset of symptoms is considered at 25 years. The debut after 60 years is considered late onset and is rare, generating controversies in the diagnosis
ObjectivesWe present the case of a 58-year-old patient with no personal or family history of mental health, who came to the emergency room for the first time, reporting feeling in danger. He comments itching on his skin, verbalizing seeing bugs running through it, relating this phenomenon to “witchcraft by my brothers”, he also refers to feeling like “they watch my thoughts and block it through a mobile application, they enter through my eye right and this gives me less vision and a headache. He also refers to having the ability to listen to how his brothers talk about how they are going to “hurt me.” Psychopathologically, we highlight that she is oriented in the three spheres, presenting delusional ideation with an experience of harm, a phenomenon of thought theft and auditory and tactile hallucinations.
MethodsAnalytical and imaging tests, as well as toxins in urine, were negative.
ResultsDiagnosis of psychotic episode is made to see evolution. The clinic partially yields to treatment with atypical antipsychotics. At this time, the patient has no awareness of the disease.
ConclusionsDespite being a diagnosis that is scarcely prevalent, once organic disease has been ruled out.
Disclosure of InterestNone Declared
Intracranial hemorrhage in a patient with depressive anxiety disorder about a case
- M. Palomo Monge, M. V. Lopez Rodrigo, C. Garcia Montero, A. Osca Oliver, V. R. Fons, A. Duque Dominguez
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S923
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Introduction
We present the case of a 69-year-old patient who went to the emergency department due to an episode of aggressiveness and behavioral alteration, presenting irritability and nervousness, of about 2 days of evolution according to her family member. Given that the patient had previously presented chronic behavioral disorders and had previously been followed up in psychiatric consultations, psychiatry was notified after an initial evaluation by the emergency physician.
ObjectivesSomatic personal history: NAMC. HTA. Not DM, not DL. Former smoker of 20 cigarettes/day. Recurrent intracranial hemorrhage secondary to amyloid angiopathy and suspected amyloid vasculitis. Last admission to the neurology service in June 2022, also presenting symptomatic epileptic seizures and secondary behavioral alterations. Mastocytosis. Post-traumatic vertebral fracture. Non-anticoagulated paroxysmal atrial fibrillation. Surgical: Left ear surgery. appendectomy. Hysterectomy + oophorectomy.
Personal psychiatric history: In follow-up since May 2021 referred from neurology for emotional lability, episodes of anger and fear. Diagnosed with anxiety-depressive disorder secondary to a medical illness.
Current psychiatric treatment: Oxcarbazepine 800mg 0-0-1, trazodone 100mg 0-0-1, aripiprazole 10mg 1-0-0.
MethodsCurrent illness: The patient goes to the emergency room brought by her husband. During the interview she minimizes her aggressive behaviors or even does not remember them. She is disoriented in time, with very striking memory failures. Her husband comments verbal aggressiveness if he contradicts her in something, sometimes even presenting physical aggressiveness with her relatives. They report that in the last psychiatric consultation a little over 1 month ago, aripiprazole was withdrawn due to an increased risk of cardiovascular events.
After the examination of the patient, she was referred back to the emergency department for a new assessment and to rule out the organicity of the current condition, given that the patient had cardiovascular risk factors, due to the suspicion of a new episode of intracranial hemorrhage.
Resultssychopathological examination: Vigil, conscious, disoriented in time, partially in space. Collaborative, calm during the interview. Coherent, structured speech, with obvious memory failures. Labile, irritable mood. Verbal and physical heteroaggressiveness at home, not during the interview. No structured or planned autolytic ideation at this time. Appetite and sleep preserved.
ConclusionsAn urgent head CT was requested, with the result of a small intraparenchymal bleeding in the left frontal location, and she was admitted to the neurology department, with a diagnosis at discharge of: small left frontal haematoma, suspected amyloid vasculitis, and secondary behavioral alteration (vascular dementia).
Disclosure of InterestNone Declared
Postictal psychosis in a psychiatric pacient, about a case
- M. V. López Rodrigo, M. Palomo Monge, A. Osca Oliver, V. Ros Fons, F. Tascón Guerra
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S616
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Introduction
Postictal psychosis is the most frequent psychosis in epileptic patients, appearing between 3-8% of them. As temporary criteria, it must appear in less than a week after the epileptic crisis, with a duration of between 15 hours and 3 months.
ObjectivesWe present the case of an 82-year-old patient admitted to the ED due to an epileptic seizure. Request evaluation for agitation and disorientation.
MethodsThis is an 82-year-old patient diagnosed with epilepsy for 5 years, with unwitnessed seizures, under treatment with levetirazetam. In the last consultation with neurology, the differential diagnosis was raised with anxiety crises due to normal intercritical EEG.The patient went to the emergency room after a partial crisis, presenting a post-critical state and beginning hours later with disorientation in time and place, manifesting delusions of religious content, as well as visual hallucinations of the same type, presenting agitation that required pharmacological and mechanical restraint.
ResultsAdmission to the Neurology Service was decided, with a good response to treatment with a typical intramuscular antipsychotic, with complete remission of the condition in 48 hours. Small areas of ischemia compatible with the patient’s age are observed in the cranial CT and the EEG shows slowed global activity.
ConclusionsPostictal psychosis is a phenomenon of low prevalence, however, it is important to take it into account. It is important to recognize the postictal “lucid” period in patients with a family or personal history of psychiatric illness and seizures with compromised consciousness.
Disclosure of InterestNone Declared
Psychiatric comorbidity profiles among suicidal attempters: A cohort study
- Y. Sanchez-Carro, M. Diaz-Marsa, V. Fernandez-Rodrigues, W. Ayad-Ahmed, A. Pemau, I. Perez-Diaz, A. Galvez-Merlin, P. de la Higuera-Gonzalez, V. Perez-Sola, P. Saiz, I. Grande, A. Cebria, J. Andreo-Jover, P. Lopez-Peña, M. Ruiz-Veguilla, A. de la Torre-Luque
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S318-S319
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Introduction
More than 700,000 people die by suicide in 2019 globally (World Health Organitation 2021). Mental health problems constitute a risk factor for suicidal behavior and death by suicide (Hoertel et al. Mol Psychiatry 2015; 20 718–726). Different mental disorders have been related to different forms of suicidal ideation and behavior (Conejero et al. Curr Psychiatry Rep 2018; 20, 33) (Quevedo et al. Compr Psychiatry 2020; 102 152194). However, little is known on comorbidity profiles among suicide attempters.
ObjectivesThe aim of our work was to identify the psychiatric comorbidity profiles of individuals who were admitted a hospital emergency department due to a suicide attempt. Moreover, it intended to know their clinical characteristics according to comorbidity profile.
MethodsA sample of 683 attempters (71.30% female; M age= 40.85, SD= 15.48) from the SURVIVE study was used. Patients were assessed within the 15 days after emergency department admission. Sociodemographic (i.e., sex, age, marital status and employment status) and clinical data were collected. The International Neuropsychiatric Interview (MINI) was used to assess DSM-V Axis 1 mental health diagnoses and the Columbia Suicide Rating Scale (C-SSRS) to assess suicidal ideation and behavior. The Acquired Capacity for Suicide-Fear of Death Scale (ACSS-FAD), the Patient Health Questionnaire (PHQ-9) to assess the frequency of depressive symptoms during the past 2 weeks, and the General Anxiety Disorder-7 (GAD-7) scale to assess symptoms of worry and anxiety were also conducted. For the identification of comorbidity profiles, latent class analysis framework was followed considering diagnosis to each individual disorder as clustering variables. On the other hand, binary logistic regression was used to study the relationship between comorbidity profile membership and clinical factors.
ResultsTwo classes were found (Class I= mild symptomatology class, mainly featured by emotional disorder endorsement; and Class II= high comorbidity class, featured by a wide amount of endorsed diagnoses) (see figure 1). Individuals from the High comorbidity class were more likely to be female (OR= 0.98, p<.05), younger in age (OR= 0.52, p< .01), with more depressive symptoms (OR=1.09, p<.001) and have greater impulsivity (OR= 1.01, p<.05).
Image:
ConclusionsWe found two profiles of people with suicidal behavior based on the presence of mental disorders. Each of the suicidal subtypes had different associated risk factors. They also had a different profile of suicidal behavior.
Disclosure of InterestNone Declared
Stigma of mental illness in the gypsy ethnic group
- M. V. López Rodrigo, A. Osca Oliver, M. Palomo Monge, V. Ros Fons, Y. D´Hiver Cantalejo
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S687-S688
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Introduction
The Roma population constitutes the largest ethnic minority in Spain (more than 2% of the population), with our country having the third largest total population of Roma in the world. The concept of health and disease varies with the sociocultural context. It is important to know the cultural characteristics to exercise good clinical practice. The stigma surrounding mental illness is widely known, and is even stronger in the Roma community, leading to marginalization and shame.
ObjectivesWe present a case of a gypsy woman misdiagnosed from the age of 8 with hebephrenic schizophrenia.
MethodsPatient frequents the emergency department with symptoms of predominantly anxiety, including episodes of psychomotor agitation, self-harm, verbalization of visual hallucinations of a mystical-religious nature. In treatment with antipsychotics since diagnosis, with no therapeutic adherence. It is observed during all the episodes how the anxiolytic treatment, even, sometimes, the verbal restraint, make the symptoms subside. Psychotic symptoms over the years are ruled out.
ResultsDue to the diagnosis, this patient has been relegated from the gypsy community, she has not married or had children (an important milestone in gypsy culture), this has generated an exponential increase in anxiety symptoms and home problems.
ConclusionsIt is important to know the cultural traits to which the patients we treat in consultation belong, and how the disease can affect their lives, and a simple diagnosis can be a source of greater anxiety.
Disclosure of InterestNone Declared
‘Main the gap!’ The view of healthcare professionals on gains and pitfalls of traditional and innovative models for providing mental health care to imprisoned persons with a severe mental illness in Spain
- J. Antón Basanta, S. Paz Ruiz, V. P. Estévez Closas, Á. López López, L. F. Barrios, A. Calcedo-Barba
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S468-S469
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Introduction
Different mental health care provision models coexist in prisons in Spain. The Ministry of Interior applies a traditional model to secure mental health care to 83% of the country imprisoned population. Three autonomous regions with acquired competencies for health care provision (17% of the imprisoned population) are implementing innovative care models.
ObjectivesTo explore the views of healthcare professionals on models of mental health care provision for imprisoned persons with a serious mental illness (SMI) in Spain.
Methods21 healthcare professionals (13 physicians, 5 nurses, 3 pharmacists) working in prisons, penitentiary psychiatric hospitals and a psychiatric in-prison unit took part in 5 online, 2 hours focus groups and one in-deep interview between 31st May and 20th July 2022. The moderator used open-ended questions to research into the characteristics of mental health care models and on the challenges for implementation. Focus groups were audiotape recorded and transcribed. Transcripts were analysed applying thematic analysis.
ResultsHealthcare professionals reported that within the traditional model of healthcare provision, the psychiatric care of SMI imprisoners relies on correctional general practitioner physicians (GP). Psychiatrists act as external care providers. There are two psychiatric penitentiary hospitals with a strong correctional character for in-hospital care. Acute psychiatric care happens in prisons or at the local general hospital. Healthcare records remain within the penitentiary organization and outside the accesible healthcare information system. In consequence, there is fragmentation and delocalization of mental health care. An innovative approach consists of a dedicated mental healthcare unit within the prison with continuous psychiatric supervision of imprisoners with SMI and good quality psychiatric care. Schizophrenia and hyperactive attention deficit disorder persons benefit the most. Continued mental health care in the community remains a challenge. Another model of care is centred in the SMI imprisoned person. Acute and rehabilitation psychiatric penitentiary units operate within a network of mental health and social care resources in the community, coordinated by a liaison nurse. Individualised care plans keep SMI persons in their social environment. Costs of implementation are high. Clear definition of roles; investment in dedicated staff and shared information systems are challenges to overcome.
ConclusionsInnovative models of mental health care are needed to benefit imprisoned persons with a SMI in Spain. A decided national and regional will is paramount to overcome challenges.
Disclosure of InterestNone Declared