295 results
Metrology for sub-Rayleigh-length target positioning in ~1022 W/cm2 laser-plasma experiments
- E.A. Vishnyakov, A. Sagisaka, K. Ogura, T.Zh. Esirkepov, B. Gonzalez Izquierdo, C. Armstrong, T.A. Pikuz, S.A. Pikuz, W. Yan, T.M. Jeong, S. Singh, P. Hadjisolomou, O. Finke, G.M. Grittani, M. Nevrkla, C.M. Lazzarini, A. Velyhan, T. Hayakawa, Y. Fukuda, J.K. Koga, M. Ishino, Ko. Kondo, Y. Miyasaka, A. Kon, M. Nishikino, Y.V. Nosach, D. Khikhlukha, I.P. Tsygvintsev, D. Kumar, J. Nejdl, D. Margarone, P.V. Sasorov, S. Weber, M. Kando, H. Kiriyama, Y. Kato, G. Korn, K. Kondo, S.V. Bulanov, T. Kawachi, A.S. Pirozhkov
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- Journal:
- High Power Laser Science and Engineering / Accepted manuscript
- Published online by Cambridge University Press:
- 05 March 2024, pp. 1-58
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Effects of physical form of β-lactoglobulin and calcium ingestion on GLP-1 secretion, gastric emptying and energy intake in humans: a randomised crossover trial
- Jonathan D. Watkins, Harry A. Smith, Aaron Hengist, Søren B. Nielsen, Ulla Ramer Mikkelsen, John Saunders, Francoise Koumanov, James A. Betts, Javier T. Gonzalez
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- Journal:
- British Journal of Nutrition / Volume 131 / Issue 10 / 28 May 2024
- Published online by Cambridge University Press:
- 30 January 2024, pp. 1730-1739
- Print publication:
- 28 May 2024
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The aim of this study was to assess whether adding Ca2+ to aggregate or native forms of β-lactoglobulin alters gut hormone secretion, gastric emptying rates and energy intake in healthy men and women. Fifteen healthy adults (mean ± sd: 9M/6F, age: 24 ± 5 years) completed four trials in a randomised, double-blind, crossover design. Participants consumed test drinks consisting of 30 g of β-lactoglobulin in a native form with (NATIVE + MINERALS) and without (NATIVE) a Ca2+-rich mineral supplement and in an aggregated form both with (AGGREG + MINERALS) and without the mineral supplement (AGGREG). Arterialised blood was sampled for 120 min postprandially to determine gut hormone concentrations. Gastric emptying was determined using 13C-acetate and 13C-octanoate, and energy intake was assessed with an ad libitum meal at 120 min. A protein × mineral interaction effect was observed for total glucagon-like peptide-1 (GLP-1TOTAL) incremental AUC (iAUC; P < 0·01), whereby MINERALS + AGGREG increased GLP-1TOTAL iAUC to a greater extent than AGGREG (1882 ± 603 v. 1550 ± 456 pmol·l−1·120 min, P < 0·01), but MINERALS + NATIVE did not meaningfully alter the GLP-1 iAUC compared with NATIVE (1669 ± 547 v. 1844 ± 550 pmol·l−1·120 min, P = 0·09). A protein × minerals interaction effect was also observed for gastric emptying half-life (P < 0·01) whereby MINERALS + NATIVE increased gastric emptying half-life compared with NATIVE (83 ± 14 v. 71 ± 8 min, P < 0·01), whereas no meaningful differences were observed between MINERALS + AGGREG v. AGGREG (P = 0·70). These did not result in any meaningful changes in energy intake (protein × minerals interaction, P = 0·06). These data suggest that the potential for Ca2+ to stimulate GLP-1 secretion at moderate protein doses may depend on protein form. This study was registered at clinicaltrials.gov (NCT04659902).
2 The Role of Causality in Understanding How Prior Event Knowledge Impacts New Learning
- Alexa S. Gonzalez, Anna B. Drummey, Tyler J. Hubeny, Alexander Held, Irene P. Kan
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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. 522-523
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Objective:
The influence of prior knowledge on new learning is well established. However, there has been less research dedicated to teasing apart the key components of prior knowledge’s structure that contribute to memory enhancement. In the current study, we focused on event structures, which include various relations, such as associative, causal, and temporal. Given that events possess attributes relevant to numerous cognitive memory processes, we were most interested in exploring how event structures that possess causal relations enhance new memory formation. Specifically, we examined whether events that exhibit causal associative relations provide an additional boost to new learning compared to event structures with non-causal associative relations.
Participants and Methods:Forty-six undergraduate students took part in the study. Participants’ learning of the content of image pairs that exhibit everyday, real-world events were measured using a cued recall paradigm. The stimuli consisted of 60 image pairs that illustrated two events that were related causally and associatively (i.e., causal pairs); related only associatively (i.e., non-causal pairs); or not related at all (i.e., unrelated pairs). During an encoding phase, image pairs were presented one at a time, and after the presentation of each image pair, participants answered an encoding question that focused on the relationship between the two images. After the encoding phase and a short filler task, participants were shown a cue image (always the first picture from the pair) and were asked to provide a brief written description of the content of the second presented image from each pair. Also, as a manipulation check, we asked subjects to rate each image pair on causal direction and association strength after completion of the cued recall memory task.
Results:We found that, relative to unrelated pairs, events that possess associative relations (i.e., both causal and non-causal items) benefit learning of new information. In addition, causal relations provided an additional boost to new learning. Specifically, cued recall performance is best for causal pairs, followed by non-causal pairs and unrelated pairs. Moreover, causal direction ratings significantly predict overall itemlevel accuracy above and beyond general associative relations that exist in events. We also examined recall accuracy for specific content information within each event (i.e., agent, action, object) and found that causal relations uniquely contribute to recall performance of objects and actions.
Conclusions:Overall, the present study’s findings suggest that prior event knowledge structures possessing causal and non-causal associative relations support new learning, especially compared to image pairs with no relations. Of interest, causality provides an additional boost to new learning above and beyond general associative relations. By focusing on the role of causality in event structures, our findings informed our understanding of how prior knowledge supports new learning. Considering that the effect of prior knowledge on new episodic learning is especially evident in older adults, since they more readily rely on their schematic knowledge, a future direction would entail investigating how causal links influence new memory formation in older adults.
A hydrothermal model to predict Russian thistle (Salsola tragus) seedling emergence in the dryland of the Pacific Northwest (USA)
- Fernando H. Oreja, Nicholas G. Genna, Jose L. Gonzalez-Andujar, Stewart B. Wuest, Judit Barroso
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- Journal:
- Weed Science / Volume 72 / Issue 1 / January 2024
- Published online by Cambridge University Press:
- 17 November 2023, pp. 108-112
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Russian thistle (Salsola tragus L.) is among the most troublesome weeds in cropland and ruderal semiarid areas of the Pacific Northwest (PNW). Predicting S. tragus emergence timing plays a critical role in scheduling weed management measures. The objective of this research was to develop and validate a predictive model of the seedling emergence pattern of S. tragus under field conditions in the PNW to increase the efficacy of control measures targeting this species. The relationship between cumulative seedling emergence and cumulative hydrothermal time under field conditions was modeled using the Weibull function. This model is the first to use hydrothermal time units (HTT) to predict S. tragus emergence and showed a very good fit to the experimental data. According to this model, seedling emergence starts at 5 HTT, and 50% and 90% emergence is completed at 56 HTT and 177 HTT, respectively. For model validation, independent field experiments were carried out. Cumulative seedling emergence was accurately predicted by the model, supporting the idea that this model is robust enough to be used as a predictive tool for S. tragus seedling emergence. Our model can serve as the basis for the development of decision support systems, helping farmers make the best decisions to control S. tragus populations in no-till fallow and spring wheat systems.
Resilient functioning is associated with altered structural brain network topology in adolescents exposed to childhood adversity
- Nadia González-García, Elizabeth E.L. Buimer, Laura Moreno-López, Samantha N. Sallie, František Váša, Sol Lim, Rafael Romero-Garcia, Maximilian Scheuplein, Kirstie J. Whitaker, Peter B. Jones, Raymond J. Dolan, NSPN consortium, Peter Fonagy, Ian Goodyer, Edward T. Bullmore, Anne-Laura van Harmelen
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- Journal:
- Development and Psychopathology / Volume 35 / Issue 5 / December 2023
- Published online by Cambridge University Press:
- 26 July 2023, pp. 2253-2263
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Childhood adversity is one of the strongest predictors of adolescent mental illness. Therefore, it is critical that the mechanisms that aid resilient functioning in individuals exposed to childhood adversity are better understood. Here, we examined whether resilient functioning was related to structural brain network topology. We quantified resilient functioning at the individual level as psychosocial functioning adjusted for the severity of childhood adversity in a large sample of adolescents (N = 2406, aged 14–24). Next, we examined nodal degree (the number of connections that brain regions have in a network) using brain-wide cortical thickness measures in a representative subset (N = 275) using a sliding window approach. We found that higher resilient functioning was associated with lower nodal degree of multiple regions including the dorsolateral prefrontal cortex, the medial prefrontal cortex, and the posterior superior temporal sulcus (z > 1.645). During adolescence, decreases in nodal degree are thought to reflect a normative developmental process that is part of the extensive remodeling of structural brain network topology. Prior findings in this sample showed that decreased nodal degree was associated with age, as such our findings of negative associations between nodal degree and resilient functioning may therefore potentially resemble a more mature structural network configuration in individuals with higher resilient functioning.
Group psychotherapy for patients with first-episode psychosis: Effect on the clinical status and use of resources
- P. Herrero Ortega, A. Oliva Lozano, J. Garde González, C. Bayón-Pérez, R. Mediavilla, M. P. Vidal-Villegas, B. Rodríguez-Vega, S. Cebolla, E. Román, E. V. Pérez Pérez, M. F. Bravo-Ortiz, O. B. O. AGES-Mind Group
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S635-S636
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Introduction
Psychotic disorders carry several economical, psychological and social consequences, both at individual and community levels. Early intervention programs after first-episode psychosis which combine pharmacological and psychosocial strategies are aimed at reducing symptoms, lowering costs in the use of health and non-health care resources and improving overall functioning. AGES-Mind study is based on manualized psychotherapeutic interventions for people with first-psychosis episodes.
ObjectivesThe aim of the study was to evaluate the effect of a group psychotherapeutic intervention on the clinical status and use of clinical resources in a sample of patients with first-episode psychosis at 12 and 24 months after the beginning of the intervention. This cohort will be compared to patients with first-psychosis episodes without group psychotherapeutic intervention.
MethodsLongitudinal, observational, retrospective study on a cohort of N=46 patients with first-episode psychosis within the last 5 years. Two groups of 23 patients each were formed. The participants of one of those groups received group psychotherapy in the context of the AGES-Mind study and the other group received treatment as usual without group intervention. Non-exposed patients were matched by age, gender and time elapsed since first-episode psychosis with those exposed to the intervention. Sociodemographic data, clinical status and use of clinical resources outcome variables were assessed.
ResultsNo significant differences were found in clinical status and use of resources between participants and non-participants in the psychotherapeutic group intervention after 12 and 24 months.
ConclusionsAfter controlling for potentially confounding variables as sociodemographic, age and time since first-episode, participating in a group psychotherapeutic program does not seem to improve clinical variables or use of resources. Further studies with larger samples would be necessary to explore other variables, such as symptoms, satisfaction with the intervention or social functioning.
Disclosure of InterestNone Declared
AGESMind clinical trial: SocialMIND® results at 16 weeks
- M. P. Vidal-Villegas, A. Abad Pérez, P. Herrero Ortega, A. Oliva Lozano, J. Garde González, J. Andreo-Jover, A. Muñoz-Sanjosé, R. Mediavilla, B. Rodríguez-Vega, G. Lahera, Á. Palao-Tarrero, C. Bayón-Pérez, M. F. Bravo-Ortiz
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S480-S481
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Introduction
Early intervention on a first psychotic episode is fundamental for a more favorable prognosis, and it usually combines pharmacological treatment, which mainly affects positive psychotic symptoms, with interventions that can improve the rest of the symptoms and associated problems such as deterioration in social functioning (Harvey & Penn, 2010; Fusar-Poli, McGorry & Kane, 2017). While Mindfulness is gaining more and more prominence in the field of psychotherapy (Chan et al., 2019; Cillesen et al., 2019), social cognition and social functioning are being researched as key targets on which to intervene after a first psychotic episode (Green, Horan & Lee, 2015).
SocialMIND® is a mindfulness-based social cognition training tailor-made to improve social functioning in people who have suffered a first psychotic episode within the last five years. It is currently being compared with a group Psychoeducational Multicomponent Intervention (PMI) in a Randomized Controlled Trial (RCT) (Mediavilla et al., 2019). Both group psychotherapies include 17 sessions delivered over a 9 month period: 8 weekly sessions, 4 biweekly sessions and 5 monthly sessions.
The results of SocialMIND® at 8 weeks showed improvements in social cognition and social functioning, specifically on affective social cognition and self-care (Mediavilla et al., 2021).
ObjectivesTo evaluate the efficacy of SocialMIND® in improving social functioning, measured by the Personal and Social Functioning (PSP) scale 16 weeks after starting the intervention, in people who have suffered a first psychotic episode in the last 5 years.
MethodsRandomized, controlled pilot trial (use of a psychoeducational multicomponent intervention or PMI as active comparator) of two parallel groups (SocialMIND® and PMI) with a 1:1 ratio using a blind evaluator.
ResultsNo statistically significant differences were found in the social functioning variable between the two treatment arms. Intragroup differences are observed in other secondary variables studied (social cognition) 16 weeks after starting the interventions.
ConclusionsSocialMIND® has not been shown to be more effective than a PMI in improving social functioning at 16 weeks after starting the intervention in people who have suffered a first psychotic episode in the five years prior to being included in the study.
Disclosure of InterestNone Declared
Cannabis use in different mental disorders: a descriptive study in a psychiatric hospital
- B. Samso, A. López Fariña, C. González Navarro, L. Morado San Segundo, A. Bilbao Idarraga, U. López Puentes, R. F. Lopez Brokate, T. Ruiz de Azua Aspizua, U. Ortega Pozas, C. Arán Cisneros, E. Garnica de Cos, I. Alonso Salas
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S334-S335
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Introduction
In the last decade, the prevalence of THC use is increasing among adolescents and adults. There is also strong evidence to suggest that cannabis use is associated with psychiatric comorbidities. The strongest evidence is found between cannabis use and psychotic disorder. However, the literature shows that those who have used cannabis in the past or for a large part of their lives are at higher risk of mood disorders, anxiety, personality disorder or other drug use than those who do not use cannabis in a harmful way.
ObjectivesTo provide an overview of the association between cannabis use and the different mental pathologies presented by the patients admitted during the study period. To describe the prevalence of THC use in the study according to the mental pathology presented by the patient.
MethodsA retrospective observational descriptive study was developed for 3 months, of all patients admitted to the acute unit of the psychiatric hospital. No exclusion criteria were included.
ResultsDuring the period of study 172 patients were admitted to the hospital, classified according to the main diagnosis we have: 49 patients suffer from schizophrenia, 26 bipolar affective disorder, 20 with depressive disorder, 20 with personality disorder, 19 with substance use disorder, 18 with other unspecified disorders and 20 patients with no known previous diagnosis. The prevalence of THC use in the study sample according to diagnosis, would be schizophrenia 16%, Bipolar affective disorder 19%, Depressive disorder 5%, Personality disorder 45%, Substance use disorder 21%, Unspecified disorders 11% and patients with no known previous diagnosis 10%.
ConclusionsThe results obtained in the study in terms of THC use are in agreement with those obtained in the literature. In our study, we observed that cannabis use is associated with psychotic disorders as well as with mood, personality and substance abuse disorders. Given that the frequency of use has increased and there is a strong association with different comorbid psychiatric diagnoses, guidance on modifications in medication strategies might be necessary.
Disclosure of InterestNone Declared
Cumulative trauma exposure comparison between non-refugee immigrants and locals with psychotic disorder
- A. Trabsa Biskri, A. Mané, L. González, J. M. Ginés, F. Casanovas, A. Moreno, B. Amann, V. Pérez Sola
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S62
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Introduction
A significant global increase in immigration has been reported due to humanitarian crisis around the world. Trauma exposure related to migration process is usually multiple and maintained in long-term which could provoke a cumulative effect. Moreover, several meta-analysis describe increased risk for psychosis in immigrant population. Despite this increase, there is a lack of research in non-refugee immigrants specially within those with psychotic disorder.
ObjectivesThe aim of the study is to describe and compare cumulative lifetime trauma between immigrants and locals with psychotic disorder.
MethodsPatients who have presented, according to DSM-V criteria, one or more non-affective psychotic episodes, were recruited in Acute and Chronic inpatients units at Hospital del Mar (Barcelona) from November 2019 to June 2021, leading to a total sample of 199 patients. Demographic characteristics of patients, clinical data and main pharmacological treatment were recorded through a questionnaire. Database information was completed with electronic medical records. Cumulative trauma Scale was used as instrument to assess lifetime trauma exposure frequency and distress. Comparative analysis was performed with IBM SPSS Statistics (Chicago INC) using Chi-Square Test for qualitative variables and t-Student test for continuous variables. Covariate adjustment with demographic and clinical variables was performed by ANOVA test. Study received local ethics committee approval “CEIC” (No. 2019/8398/I).
ResultsFrom a total of 198 patients, 99 (50%) were immigrants and 99 (50%) locals. Immigrants were exposed on average 3 times more to lifetime traumatic events (16.12) when compared to locals (5.39). Likewise, distress intensity caused by trauma exposure had a mean of 97.13 in immigrants compared to 27.24 in locals. Traumatic events more present in immigrants’ group were “uprooting” (82.8%), “physical abuse” (76.8%), racial discrimination (74.7%), threat of death (74.7%) and life-threatening to close friend (72.2%) and in local group was school failure (42.4%), serious disease (38.4%), accidents (36.4%), physical abuse (36.4%) and interpersonal relationship rejection (36.4%).
ConclusionsAccording to our results there are important differences in cumulative traumatic events between immigrants and locals with psychotic disorder. Immigrants showed three times more lifetime traumatic events than locals. Likewise, immigrants presented significant higher level of distress caused by lifetime trauma and the nature of traumatic events was more severe. These results should be considered in order to offer better assessment and treatment to this population considering this comorbidity.
Disclosure of InterestNone Declared
Adherence to psychiatric medications and diagnosis
- C. González Navarro, A. Bilbao Idarraga, I. Alonso Salas, L. Morado San segundo, A. López Fariña, U. López Puentes, B. Samsó Martínez, R. F. Lopez Brokate, T. Ruiz de Azua Aspizua, E. M. Garnica de Cos, U. Ortega Pozas
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S240-S241
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Introduction
Patients with mental disorders frequently become non-adherent during their long term prescribed treatment. This situation frequently triggers clinical worsening and hospital admission. Therefore, non-adherence may result in poorer long term clinical outcomes and has economic implications for health-care providers (Carlos De las Cuevas et al. Neuropsychopharmacol Hung 2021; 23(4):347-362).
Objectives- To describe the adherence to oral and long acting injectable treatment in the sample of patients that were admitted to the short stay hospital unit during the period of study.
- To describe the adherence to treatment amongst psychiatric diagnosis in the sample of study.
MethodsIt was a retrospective observational study with a duration of three months. Data was collected from all patients admitted to the short stay hospital unit during the period of study and there were no specific exclusion criteria. Descriptive statistics were performed. To assess the adherence to pharmachological treatment the patient report, the family report and the pharmacy dispensation according to the existent informatic prescription platform was considered. Regarding the long acting injectable treatment the formulary of administration in the clinical history was checked.
ResultsDuring the period of study 172 patients were admitted to the short stay hospital unit. Of those, 146 patients had a previous pharmacologic prescription. Data of treatment was not possible to obtain in 7 patients. In the sample of study, 83.5% were on oral and 16.5% on long acting injectable treatment. The general adherence to treatment in the sample was 61.87%. In the oral treatment group the adherence was 58.4% and in the long acting injectable treatment group was 65.2%.
Amongst the different psychiatric diagnoses the outcomes of adherence to treatment were: 60.4% in schizophrenia and related psychosis, 62.5% in bipolar disorder, 78.6% in depression, 58.3% in personality disorders and 62% in addictive disorders.
ConclusionsIn our descriptive study adherence to treatment was higher in the long acting injectable treatment group, agreeing with the existent scientific literature.
The results of adherence for schizophrenia and bipolar disorder are similar to the ones found in scientific literature but differ from the ones for depression, being higher in our sample (Judit Lazary et al. Neuropsychopharmacol Hung 2021;23(4): 347-362). Moreover, in scientific literature it is found a similar prevalence of adherence across diagnosis (for schizophrenia, bipolar disorder and depression) whereas in our sample patients with depression showed a different and higher adherence to treatment (Judit Lazary et al. Neuropsychopharmacol Hung 2021;23(4): 347-362). In our sample, patients with personality disorders had the lowest adherence to treatment.
Disclosure of InterestNone Declared
Gastric bezoar in a patient hospitalized in an eating disorder unit. Case report
- J. Torres Cortés, I. Esteban Avendaño, J. B. González del Valle, R. González Lucas, J. J. Padín Calo, J. P. Morillo González
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S850-S851
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Introduction
It is well known that eating disorders are related to comorbidity. At least, half of these patients have other mental disorders and, in addition to it, the presence of physical comorbidity (cardiovascular, kidney, nervous system, digestive tract, metabolic or endocrine disorders) comes with a decline in life expectancy.
ObjectivesDescription of a patient with a diagnosis of anorexia nervosa (AN) who developed a gastric bezoar during hospitalization.
MethodsCase treated in a specific Eating Disorder Unit in a Third-Level Hospital.
Results26 years old woman with a diagnosis of AN hospitalized in General Psychiatric Unit with BMI of 11,78 kg/m2. Nasogastric tube was necessary and, after 1 month with a progressive weight recovery (BMI 13,84 kg/m2), the patient was transferred to the Eating Disorder Unit in order to follow specific psychological therapy. No incidence related to physical exploration or clinical analyses happened during this month apart from pancytopenia due to malnutrition.
However, 8 days after, patient developed nausea and had 3 vomit episodes, constant abdominal pain at hipogastrium (moderate intensity), dizziness, instability and constipation. The patient refused possibility of pregnancy. The physical exam showed bowel sounds augmented but no mass or peritoneal irritation appeared. Blood test results were normal. Abdominal X-Ray showed gastric dilatation with small bowel faeces sign, which suggested diagnosis of gastric bezoar.
The treatment was the dissolution of the bezoar by Coca-Cola, solving the symptoms completely.
The patient refused having eaten hair or any other kind of object or indigestible material but admitted to be following a strict vegan diet. Finally, after an endoscopy was done, the patient was diagnosed of phytobezoar.
ConclusionsBased on literature, bezoars are rare in AN, being phytobezoars the most common between the types of bezoars. Nevertheless, there are some risk factors, such as delayed gastric emptying, dehydration or, in the case of phytobezoar, ingestion of food containing high amount of cellulose, hemi-cellulose, lignin, and tannins (celery, pumpkin, grape skins, prunes, raisins and, in particular, persimmons). Some of the symptoms caused by phytobezoar can be similar to those of the AN (abdominal pain, intestinal obstruction, poor appetite, vomiting, malnutrition, weight loss). Therefore, gastric bezoar could be an underdiagnosed or even undiagnosed disease in this group of patients. Taking this into account could reduce time until diagnosis and treatment, decreasing the risks associated.
Disclosure of InterestNone Declared
Efficacy of paliperidone palmitate 3-month formulation in preventing hospital admissions and emergency room visits. 66 months of follow-up
- S. L. Romero Guillena, B. O. Plasencia Garcia de Diego, J. Gomez Gonzalez, F. Gotor Sánchez-Luengo
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S487
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Introduction
Paliperidone Palmitate 3-month formulation (PP3M) has shown a significantly longer time to relapse compared to placebo, with similar efficacy and safety to Paliperidone Palmitate 1-month (PP1M) (Carpiniello et al. Drug Des. Devel. Ther. 2016; 10 1731–1742).
ObjectivesThe main objective of this study was to determine the effectiveness of PP3M in preventing hospital admissions and emergency room visits, in people with non-acute schizophrenia in a naturalistic psychiatric outpatient setting
MethodsSample: 30 people with diagnosis of schizophrenia (DSM 5 criteria), who had started treatment with PP3M, after being stabilized with PP1M (the dose was not modified in the four months prior to inclusion in the study)
Quarterly basis, the following evaluations were performed during a follow-up period of 66 months:
The Clinical Global Impression-Schizophrenia scale (CGI-SCH)
Treatment adherence, concomitant medication and the number of hospitalizations and emergency visits
Efficacy values: Percentage of patients who remained free of admissions at the end of 66 months of follow-up.
Other evaluation criteria: Percentage of patients who never visited the emergency department at the end of 66 months of follow-up. Average change from baseline visit to the final evaluation as assessed by score obtained on the following scale: GSI-SCH, percentage of patients on antipsychotic monotherapy and treatment adherence rate.
ResultsThe mean dose of PP3M was 401. 55 mg
The percentage of patients who remained free of admissions at the end of the 66 months was 83.25% and the percentage of patients who never visited the emergency department at the end of 66 months was 79.92%
Mean variations from baseline scores at 66 months were: (-0.36 ±0-37) on the GCI-SCH.
The percentage of patients on antipsychotic monotherapy at the end of the 66 months was 76.56%
The rate of adherence was 86.58%
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ConclusionsIn our study, we found that paliperidone palmitate 3-month formulation was effective in reducing the number of admissions and visits to the emergency department, under conditions of daily clinical practice.
Disclosure of InterestNone Declared
Alcohol consumption and cardiovascular risk: a descriptive study in a psychiatric short stay unit
- C. González Navarro, I. Alonso Salas, L. Morado San segundo, A. López Fariña, A. Bilbao Idarraga, U. López Puentes, B. Samsó Martínez, R. F. Lopez Brokate, T. Ruiz de Azua Aspizua, E. M. Garnica de Cos, U. Ortega Pozas
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S754
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Introduction
Patients with mental disorders have a decreased life expectancy, being the main reason the cardiovascular disease. An important proportion of patients present a comorbid drug consumption. Amongst drugs, alcohol is the most frequent, and it is associated with a higher cardiovascular risk. The metabolic syndrome is one of the most employed tools to assess cardiovascular risk.
Objectives- To describe the demographic characteristics of the patients with an active alcohol consumption that were admitted to the hospital during the period of study.
- To describe the prevalence of metabolic syndrome in the sample, according to the Adult Treatment Panel III (ATP-III) criteria.
MethodsRetrospective observational study of three months duration. Data was collected from all patients admitted to the hospital during the period of study, with no specific exclusion criteria. Descriptive statistics were performed.
ResultsDuring the period of study 172 patients were admitted to the hospital (56.4% women and 43.6% men). A 44.8% presented alcohol consumption (25% sporadically, 6.4% weekly and 13.4% daily). Amongst women, 1% presented daily and 1% weekly consumption. Amongst men, 21.3% presented daily and 5.3% weekly consumption.
The prevalence of metabolic syndrome in the study sample was 29.11%. In the alcohol consumption group, the prevalence was 24.7% and differed according to the pattern of consumption: 43.5% in the daily consumption group, 27.3% in the weekly and 14% in the sporadically consumption group.
ConclusionsOn the one hand, in the sample of study a higher percentage of men present an active alcohol consumption, compared to women. It is remarkable the high percentage of daily alcohol consumption amongst men in our sample.
On the other hand, the prevalence of metabolic syndrome in our sample is similar to the one found in scientific literature regarding patients with mental disorders. It is noteworthy in our sample the increased prevalence of metabolic syndrome found in patients with a daily alcohol consumption, and a decreased prevalence in those with a sporadic pattern.
Disclosure of InterestNone Declared
The response to unfolded proteins in schizophrenia and bipolar disorder
- C. Cachán, I. M. Valle, Y. Potes, A. González Rubio, N. Menéndez Coto, D. López Fanjul, I. Vega Naredo, B. Caballero, P. Saiz, J. Bobes, P. García Portilla, A. Coto Montes
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S636-S637
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Introduction
Schizophrenia (SCH) and bipolar disorder (BD) are severe mental disordes, which have high incidence (Whiteford et al. Lancet 2013; 381 1575-86) and are the main causes of diasibility in young people (WHO 2022; https://www.who.int/news-room/fact-sheets/detail/mental-disorders).
Psycological stress appears in different mental disorders, and this is directly related to oxidative stress (Moller et al. Chem Biol Interact. 1996; 102 17-36)(Pupic-Bakrac et al. 2020; Psychiatr Danub. 32 412-9). Oxidative stress causes reticulum edoplasmic stress (ER stress) and this produces high levels of misfolded proteins. Defective proteins are degraded by the proteasome, but but when the density of misfolded proteins exceeds the capacity of the proteosome, the Unfolded and Misfolded Protein Response (UPR) is triggered through three main pathways: Inositol-requiring enzyme 1α (IRE1α); transcription factor 6 alpha (ATF6α) and protein kinase RNA-Like ER kinase (PERK), trying to recover normal protein synthesis capacity (Bermejo-Millo et al. 2018; Mol Neurobiol. 55 7973-86) (González-Blanco et al. 2022; J Cachexia Sarcopenia Muscle 13 919-31).
ObjectivesCharacterizing ER stress and UPR in SCH and BD.
MethodsWe studied ER stress and UPR in peripheral blood mononuclear cells (PBMC) from 50 patients with SCH and an equal number of patients with BD compared to their corresponding controls in order to achieve our objectives.
Western Blot assay were performed following classical procedure () and the results was normalized to Ponceau as loanding control (Nie et al. 2017; BiochemByophys Resp 12 10-13) (Sander et al. 2019; Anal Biochem 575 44-53). Proteasome activity was assessed using Proteasome Activity Assay Kit (ab107921, Abcam, Cambridge, UK).
ResultsER stress was evaluated with BiP/GRP78. Our results showed significantly increased expression in SCH (p<0,01) and BD (p<0,05), being more increased in SCH. Proteasome activity was increased in SCH and BD, being only statistically significant in SQZ (p<0,05). UPR study showed IRE1a cascade significantly activated in SCH (p<0,001) and only slight increased in BD showed without statistical differences. ATF6a pathway is measured by cleavage to active protein (50-kDa). Results showed higher expression in SCH than in BD and controls (p<0,001). In addition, PERK pathway showed higher statistical levels of p-eIF2a/eiF2a ratio in SCH than in BD and control respectively (p<0,05 and p<0,01).
ConclusionsOur results showed a greater alteration in SCH than in BD at the level of protein synthesis, which implies a greater toxicity at the cellular level and, therefore, a clear risk for the survival of cells in this pathology.
Disclosure of InterestNone Declared
“Unspecified organic personality and behavioral disorder due to brain damage from HHV-6 encephalitis in child. case report and literature review”
- A. Oliva Lozano, M. A. Morillas Romerosa, P. Herrero Ortega, J. Garde Gonzalez, B. Orgaz Álvarez, J. Curto Ramos, M. Alcamí Pertejo
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S143-S144
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Introduction
We present a case of a 15 year-old boy diagnosed with Unspecified Personality and Beheavioral Disorder Due to Brain Damage from a Human Herpes Virus-6 Encephalitis.
ObjectivesTo describe a case of an Unspecified Organic Personality and Behavioral Disorder secondary to brain damage from Human Herpes Virus-6 (HHV-6) Encephalitis in an 11 year-old childand to review recent literature, in order to improve clinical practice.
MethodsClinical case report and brief review of literature. A bibliographic research was made in the database PubMed, using the terms “Viral Encephalitis” AND “Neuropsychiatric symptoms”; “Viral Encephalitis” AND “Behavioral Disorder”; “Long-Term Neurological Morbidity” AND “Viral Encephalitis”.
Results15 year-old boy diagnosed with Unspecified Personality and Beheavioral Disorder Due to Brain Damage from a Human Herpes Virus-6 Encephalitis, secondary to immunosupression in the context of haematopoietic progenitor transplantation (HPT) at 11 years old. MRI showed supratentorial ventriculomegaly, atrophic changes in encephalon and right hippocampus with subcortical retraction secondary to previous encephalitis. Clinically, main changes appeared in behavior, presenting a serious frontal syndrome with high disinhibition, what implied severe social and academic difficulties. During the outpatient follow-up, the behavioural disorder is being pharmacologically treated with Risperidone 1,5mg per day with a partially favorable evolution. The patient presented intolerance to olanzapine, with an episode of low level of conciuosness after taking it.
Bibliographic research results indicate that the gold standard treatment for behavioral disturbances are antipsychotics. Risperdidone is proven save for treatment in children. Results point out also the importance of an early multidisciplinar intervention, involving family training, rehabilitation resources and curricular adaptations.
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ConclusionsViral encephalitis may have serious neuropsychiatric consequences, especially during childhood while the brain development is not finished. When the neurological damage affects the frontal lobes of the brain, behavioural and personality disturbances are expected and an early multidisciplinar intervention should be considered. Antypsichotics are the gold standard pharmacological treatment for behavioural disturbances. During the scholar period, special curricular adaptations should be done in order to reduce study-related stress.
Disclosure of InterestNone Declared
Psychiatric symptoms in general population and health personnel during the second and third waves of COVID-19 in Mexico
- M. S. González, S. Luna, A. B. Cuéllar
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S411-S412
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Introduction
The COVID-19 pandemic has significantly affected mental health. However, its impact between different pandemic waves and different populations has been scarcely studied.
ObjectivesThe aim of this study was to analyze the differences in psychiatric symptomatology between the general population (GP) and health personnel (HP) during the second and third waves of COVID-19 in Mexico.
Methods404 participants were included as part of a cross-sectional study conducted during the COVID-19 pandemic, using an online survey. Second wave covered from September 27, 2020 to April 17, 2021 and the third wave covered from June 6, 2021 to October 23, 2021. GP refers to Mexican residents during the pandemic, and HP includes healthcare workers (doctors, nurses, residents). Sociodemographic data were collected and scales of depression (Patient Health Questionnaire 9), anxiety (General Anxiety Disorder -7), insomnia (insomnia severity index), and post-traumatic stress (Impact of event scale revised) were applied. We gather information in a database in Excel, for later analysis using IBM SPSS Statics 21. Traditional descriptive statistics for quantitative variables and frequencies for qualitative variables were obtained. Association and statistical correlation were analyzed using Chi2 tests.
Results71.3% of the collected sample were female, mean age 35.5 (sd= 11.6), the 62.5% consisted of health personnel, the majority were single 48.9%, with postgraduate education 48.9%, middle class (97.2%). A higher percentage of symptoms of depression and anxiety was observed in health personnel compared to the general population during the second wave of COVID-19 (33.9% vs. 19.5%, p=0.047; 18.2% vs. 39.3%, p=0.006). However, during the third wave of COVID-19, more depressive, anxious and insomnia symptoms were observed in the general population compared to health personnel (73.9% vs. 44.4%, p=0.020; 73.9 vs. 25.9%, p= 0.000; 43.5% vs. 11.1%, p=0.008) (Figure 1).
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ConclusionsHealth personnel presented more depressive and anxious symptoms during the second wave of COVID-19 compared to the general population, however, the results were inverse during the third wave, showing more psychiatric symptoms in the general population with significant differences. This may be due to various factors, including unawareness, fear of the disease, and exposure during the second wave of the pandemic of health personnel. Moreover, long-lasting containment measures could have overwhelmed the GP by the third wave. Our study underscores the importance of addressing HP mental stressors to increase its resilience in similar health crises.
Disclosure of InterestNone Declared
MULTIFAMILY GROUPS DIFFERENT LOOKS: GROUPANALYTICS OPERATIONAL CONCEPTION INTERFAMILY (T. of attachment and open dialogue)
- B. Gamo, S. M. Bañon González
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- Journal:
- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S1025
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Introduction
In this work, I will try to approach birth and growth from my stay in therapy groups, including psychotherapy in multi-family groups from a simple observer, to a driver, alone and in co-therapy, to a member of the experience, to a driver member.
ObjectivesExplain why we are interested in our work center in multifamily therapy groups
MethodsQualitative and narrative of the course of my experience in group therapy over 25 years
ResultsBased on my experience, I do not see any probability that coordination/direction will be achieved at the same time as symmetry in participation. Knowledge is power, said Foucault, so I must divest myself of my knowledge in order not to have power, and that power be executed by each of the participants with her own life.
ConclusionsIt is in this process that I have been going through, it makes me think to what extent one makes the effort, I have made the effort not to be in the place of excluding the other, the other sick, of segregating him, as if to feel that I have a place of healing, the other must be someone who is the object of being healed. We have the possession of knowledge, to give light to others, in this disciplinary society, of disciplining in prison institutions, as Foucault would say, prisons, hospitals, army.
In this group work, multi-family, we must go to the singularity of the participants, to make them stand out, to get out and overcome the need for those relatives, who prevent them from growing and thawing, and roughly, hold on and take out the healthy virtuality , but that does not mean that we will achieve, even if we get out of the stereotyping and the sickening circle, that we have arrived at what is healthy, because in some way it will end up being just the way in which we look at what is healthy.
In this process, not only do the participants change, but we do too, because otherwise, we would be in a stereotype, regarding our role and the institution itself.
The mentally ill is not only a justification of families, but of society itself, and that other, that other excluded, will be determined by the historical period itself, and social context, the sick of today were not those of the past nor will they be those of the future.
Power, as Foucalt would say, entails resistance, and what is our resistance, that is the question I ask myself, resistance is needed so that power can establish itself, think about counter-power, fissures so that things are renewed, and that is actually what is sought in groups, to work from the cracks of the established
Disclosure of InterestNone Declared
SOD and CAT as potential preliminary biomarkers for the differential diagnosis of schizophrenia and bipolar disorder in the first episode of psychosis
- C. Cachán-Vega, E. Antuña, C. García-González, J. C. Bermejo-Millo, F. Baena-Huerta, L. González-Blanco, B. Caballero, I. Vega-Naredo, J. Bobes, M. P. García-Portilla, A. Coto-Montes, Y. Potes
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S449-S450
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Introduction
Schizophrenia (SCH) and bipolar disorder (BD) are severe mental disorders which lead to psychotic, affective and cognitive symptoms and often cause a progressive functional deterioration of the individual. The current diagnosis of SCH and BD essentially depends on clinical observation that often leads to misdiagnosis and the introduction of non-specific treatments. Therefore, an early detection and intervention are determinant for a better prognosis. Improving outcomes of a First Episode of Psychosis (FEP) depends mainly on the identification of reliable and discriminatory biomarkers between both disorders.
ObjectivesGiven that oxidative stress has been tightly involved in multiple metal disorders, the major goal of this work was to characterize oxidative alterations in order to identify potential biomarkers which allow the differential diagnosis in an early stage.
MethodsThe study was carried out on samples from 49 subjects (14 women and 35 men), divided into four groups: a control group of 10 individuals not previously diagnosed with any serious mental disorder, 17 patients who had presented a FEP, 12 patients diagnosed with SCH and 10 patients diagnosed with BP. Biochemical analysis were conducted in erythrocyte fraction to characterize the cellular oxidative damage by measuring lipid peroxidation (LPO) levels and the antioxidant defense system by the evaluation of catalase (CAT) and superoxide dismutase (SOD) activities.
ResultsIn the present work, we observed a significant increase in LPO levels in both SCH and BD disorders that was not neutralized by the antioxidant defense. It was found that SCH patients, despite exhibiting greater activities of SOD and CAT compared to BD individuals, also showed significantly higher levels of oxidative damage. The differential oxidative profile observed between SCH and BD individuals allowed to perform an individually analysis of patients diagnosed with FEP. Although it was not possible to identify the type of psychotic disorder of all the patients with FEP, the results obtained showed that while several individuals exhibited an oxidative prolife similar to that observed in SCH patients, other individuals presented a prolife very similar to that found in patients with BD.
ConclusionsThe current work reveals that LPO is a potential indicator of worse prognosis after being differentially modified in both SCH and BD. Moreover, SOD and CAT have been identified, by presenting an opposite profile between patients with SCH and BD, as potential preliminary biomarkers for a discriminatory diagnosis in an early stage of the disorder.
Disclosure of InterestNone Declared
Resistant depression. Clinical manifestations and diagnosis. Purposely a case
- S. M. Bañón González, N. Ogando Portilla, O. Sobrino cabra, B. Gamo Bravo, F. García Sánchez
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, p. S844
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Introduction
The term “depression” can be used in different senses: it can be a syndrome, a mood state, a mental disorder, and all of them are distinct clinical conditions…There are no pathognomonic features of bipolar/unipolar depression. A good medical history is the most important component of the evaluation. We have to use clinical variables and differential epidemiology for a correct diagnosis.
ObjectivesThey both analyze clinical, psychopathological and epidemiological characteristics of resistant depression and they review causes, incidence, prevalence, diagnostic, therapeutic tools and the importance of maintaining the treatment, because the abandonment of the treatment is a good predictor of possible relapses.
MethodsA literature Review of the last five years concerning resistant depression has been done: prevalence, incidence, pathogenesis and its relationship with other psychiatric disorders encoded in DSM-V.
ResultsUnipolar major depression (major depressive disorder) is characterized by a history of one or more major depressive episodes and no previous history of mania or hypomania symptoms. A major depressive episode is presented with five or more of the following nine symptoms for at least two consecutive weeks; at least one of them must be either a depressed mood or a loss of interest or pleasure. In addition, the symptoms must cause significant distress or psychosocial impairment, and not be a direct result of a substance or general medical condition.
ConclusionsSymptoms of unipolar depression in adults can overlap with symptoms of other psychiatric and general medical disorders. Unipolar depression needs to be distinguished from these other disorders to prevent inappropriate treatment.
Disclosure of InterestNone Declared
Tobacco and hypertension: a descriptive study in a psychiatric short care unit
- I. Alonso Salas, A. Lopez Fariña, C. Gonzalez Navarro, A. Bilbao Idarraga, L. Morado San Segundo, U. Lopez Puentes, R. Lopez Brokate, T. Ruiz de Azua Aspizua, E. M. Garnica de Cos, U. Ortega Pozas, B. Samsó Martinez
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- European Psychiatry / Volume 66 / Issue S1 / March 2023
- Published online by Cambridge University Press:
- 19 July 2023, pp. S954-S955
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Introduction
Patients affected by mental disorders are known to have a decreased life expectancy.
One of the main reasons are cardiovascular diseases. It is known that tobacco and hypertension are risk factors to develop them. WHO estimates that hypertension is diagnosed and treated in less than half of adults with hypertension, and even less in patients with severe mental illness.
ObjectivesTo describe the demographic characteristics of patients with tobacco comsumption and hypertension admitted to a short-term hospitalization unit.
MethodsA three-month retrospective observational study. Data were collected by interviewing incoming patients and performing a blood pressure measurement, with no exclusion criteria.
ResultsOf 172 patients admitted, 100 were smokers of whom 49 were men and 51 were women. Among the smokers, a total of 18 patients were diagnosed with hypertension and 79 were not diagnosed. Within the group of patients not diagnosed with hypertension, elevated blood pressure was recorded in 5 of them. A total of 67 patients were non-smokers, 23 of whom were male and 44 female. Among the non-smokers, 19 were diagnosed with hypertension and 48 were not, despite which elevated blood pressure levels were recorded in 4 of them. No data were collected from 5 patients.
ConclusionsThe prevalence of smokers in our sample was 58%. The prevalence of patients diagnosed with hypertension was 21,51% which is coherent with the existent literature. We did not find a higher percentage of hypertensive patients among the smokers admitted. There were patients who suffered from hypertension and were not diagnosed or treated previously.
Disclosure of InterestNone Declared