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Visceral injuries are important manifestations of child abuse. This chapter reviews mechanisms, clinical presentation and imaging of inflicted injuries involving the neck, thorax, abdomen and pelvis. Because most visceral injuries can be plausibly explained as accidental, the significance of the injuries noted radiologically must be assessed in conjunction with the clinical context, including age and ambulatory status of the child, and other imaging findings, particularly skeletal findings that may be more specific for abuse.
Retropharyngeal and parapharyngeal infections can be managed surgically or conservatively. A trial of medical treatment before considering computed tomography (CT) imaging may be appropriate.
Methods
This is a retrospective review of patients with retropharyngeal and parapharyngeal infections between October 2022 and April 2023. Descriptive and statistical analysis compared surgically and conservatively managed patients.
Results
There were 33 patients (median age 58 months). CT imaging was acquired for 30 of 33 patients (90.9 per cent) and 25 had a CT scan within 24 hours of presentation. Fourteen patients (42.4 per cent) were managed surgically. The mean duration of antibiotics for surgically and conservatively managed patients was not significantly different (19.9 vs 21.4 days, p = 0.73). Larger lesions were observed on the CT scans of surgically treated patients (22.8 vs 15.6 mm, p = 0.01).
Conclusion
Management of paediatric retropharyngeal and parapharyngeal infections can be surgical or conservative. We propose a management algorithm that allows an initial trial of intravenous antibiotics before CT imaging for selected patients.
Transoral robotic surgery is a minimally invasive technique used in the management of head and neck cancer, though post-operative odynophagia can be a significant issue. There is debate about the necessity of elective nasogastric tube placement during the peri-operative period. This study examines the proportion of patients requiring elective nasogastric tube placement and evaluates whether pre-operative factors predict the need for nasogastric tube feeding.
Methods
Data from patients who underwent transoral robotic surgery in Oxford were analysed to assess correlations between pre-operative factors and nasogastric tube feeding.
Results
Fifty-three patients undergoing transoral robotic surgery underwent elective nasogastric tube placement; 43 per cent required the nasogastric tube for feeding or medication. Multivariate analysis showed significant associations between nasogastric tube feeding and sex (p = 0.028), peri-neural invasion (p = 0.024), tumour size (p = 0.012) and concurrent neck dissection (p = 0.019).
Conclusion
Although nearly half of the patients benefited from elective nasogastric tube placement, the remainder did not. Benefits and risks of elective nasogastric tube placement should be carefully considered.
Ultrasound-guided wire localisation may improve intra-operative identification and outcomes of non-palpable cervical lymphadenopathy in a previously treated neck. We undertook a literature search and present our case series to determine the safety and efficacy of ultrasound-guided wire localisation.
Methods
A search of databases up to 29 April 2024 was performed. At our tertiary centre, ultrasound-guided wire localisation was utilised for 20 patients with cervical lymphadenopathy between February 2021 and April 2024.
Results
Seventeen studies with a combined total of 92 patients were identified, with one complication reported. Within our case series, all 20 patients had accurate lesion localisation using ultrasound-guided wire localisation and none required repeat operations.
Conclusion
Ultrasound-guided wire localisation is a safe and cost-effective technique for lesions in an otherwise difficult area to operate, providing confidence to the multidisciplinary team, particularly where histopathology indicates benignity. Surgical outcomes do not appear worse than outcomes without ultrasound-guided wire localisation. We advocate its use provided appropriate patient selection is considered.
Head and neck carcinoma of unknown primary is a diagnostic dilemma. The clinical and imaging workup remains ineffective in two-thirds of patients. Transoral robotic surgery has shown an advantage in the primary detection over the previous standard panendoscopy.
Methods
This is an observational cohort study that took place at a large healthcare centre with robotic surgery experience in head and neck over six-years. All included carcinoma of unknown primary patients followed the standard recommendation for primary identification. Final diagnostic step of robotic tongue base mucosectomy with or without tonsillectomy was introduced. The cancer detection rate in tongue base only, the functional outcome and the effect on the cancer pathway were evaluated.
Results
Carcinoma of unknown primary was reported in 44 per cent of patients. All identified specimens were human papillomavirus positive. There was no significant effect on functional outcome of swallowing and the national 62-day cancer pathway. Robotic surgery allowed optimum treatment of carcinoma of unknown primary in early nodal disease.
Conclusion
Robotic surgery is a useful paradigm in the management of carcinoma of unknown primary. It is safe with minimal morbidity and good functional outcome after the surgery.
To provide an update on the microbiology, sensitivity rates and antibiotic prescribing patterns for superficial neck lymph node abscesses at Scotland's largest paediatric tertiary centre. Findings were compared to historical data from our institution.
Methods
A retrospective case series was conducted of paediatric patients undergoing incision and drainage of a superficial neck lymph node abscess at the Royal Hospital for Children in Glasgow, from 2018 to 2021.
Results
Thirty-nine abscesses were identified. Methicillin-susceptible Staphylococcus aureus was the commonest micro-organism (28 per cent), followed by Streptococcus pyogenes (13 per cent). Eighty-two per cent of patients were administered a drug regimen containing co-amoxiclav. Only three children required a change in their antibiotics.
Conclusion
There was a significant change in causative micro-organisms, including a decrease in S aureus and an increase in the Streptococcus anginosus group. Empirical use of co-amoxiclav is recommended. In abscesses showing no clinical improvement, second-line options such as clindamycin, cefotaxime and vancomycin should be considered.
A 43-year-old woman presented with a 3-week history of globus sensation and malaise. A computed tomography scan of her neck showed a large right paratracheal abscess secondary to an infected tracheal diverticulum. The patient was admitted under the ENT surgical team, and underwent incision and drainage of the abscess. There were no post-operative complications and she was discharged home after 2 days, on oral antibiotics.
Conclusion
This case demonstrates that a tracheal diverticulum may become infected and present as a cervical abscess. To our knowledge, this is the fourth reported case in the international literature of abscess formation related to an infected tracheal diverticulum.
Lateral temporal bone resections are used in the management of locally advanced peri-auricular cutaneous squamous cell carcinomas, but there is still conflicting evidence regarding the staging, surgical and adjuvant treatment decisions.
Methods
A retrospective analysis was performed on all patients who underwent lateral temporal bone resection for cutaneous squamous cell carcinoma between January 2015 and December 2019 at a dedicated tertiary oncology referral centre.
Results
Twenty-nine patients were included, with a median age of 77 years. Computed tomography, magnetic resonance imaging and positron emission tomography showed good diagnostic accuracy in identifying disease in the parotid gland, external auditory canal and mastoid bone, but had poor sensitivity in identifying cervical nodal metastasis. Six patients had recurrence at a median of 4.8 months post-operatively. Tumour differentiation (p = 0.0040) and post-operative radiotherapy (p = 0.0199) were associated with significantly better recurrence-free survival.
Conclusion
Lateral temporal bone resection for peri-auricular cutaneous squamous cell carcinoma requires careful surgical planning using clinico-radiological correlation, particularly in patients with poorly differentiated tumours.
Patients with coronavirus disease vaccine associated lymphadenopathy are increasingly being referred to healthcare services. This work is the first to report on the incidence, clinical course and imaging features of coronavirus disease vaccine associated cervical lymphadenopathy, with special emphasis on the implications for head and neck cancer services.
Methods
This was a retrospective cohort study of all patients referred to our head and neck cancer clinics between 16 December 2020 and 12 March 2021. The main outcomes measured were the proportion of patients with vaccine-associated cervical lymphadenopathy, and the clinical and imaging characteristics.
Results
The incidence of vaccine-associated cervical lymphadenopathy referrals was 14.8 per cent (n = 13). Five patients (38.5 per cent) had abnormal-looking enlarged and rounded nodes with increased vascularity. Only seven patients (53.9 per cent) reported full resolution within an average of 3.1 ± 2.3 weeks.
Conclusion
Coronavirus disease vaccine associated cervical lymphadenopathy can mimic malignant lymphadenopathy and therefore might prove challenging to diagnose and manage correctly. Healthcare services may encounter a significant increase in referrals.
This paper reports the dangers of an ingested metal wire bristle from a barbeque brush, which resulted in oesophageal perforation.
Case report
A 49-year-old gentleman presented to the emergency department with foreign body sensation and odynophagia after having consumed barbequed lamb for lunch. Computed tomography of the neck demonstrated a thin linear opacity near the thoracic inlet. The object could not be visualised on emergent rigid oesophagoscopy. Subsequent neck exploration enabled localisation of a retropharyngeal abscess and a thin wire bristle from a barbeque brush.
Conclusion
Always consider the utensils employed in food preparation as a differential in ingested foreign bodies. Thin wire objects have a high propensity to migrate and result in complications, hence urgent intervention is vital.
To describe our management of implantable hearing device extrusion in cases of previous cervicofacial surgery.
Methods
A review was conducted of a retrospectively acquired database of surgical procedures for implantable hearing devices performed at our department between January 2011 and December 2019. Cases of device extrusion and previous cervicofacial surgery are included. Medical and surgical management is discussed.
Results
Four cases of implant extrusion following cervicofacial surgery were identified: one involving a Bonebridge system and three involving cochlear implants. In all cases, antibiotic treatment was administered and surgical debridement performed. The same Bonebridge system was implanted in the middle fossa. The three cochlear implants were removed, and new devices were implanted in a more posterior region.
Conclusion
Previous cervicofacial surgery is a risk factor for hearing implant extrusion. The middle fossa approach is the best option for the Bonebridge system. Regarding the cochlear implant, it is always suitable to place it in a more posterior area. An inferiorly based fascio-muscular flap may be a good option to reduce the risk of extrusion.
To assess the effect of tranexamic acid in head and neck surgical procedures.
Methods
A prospective, double-blind and randomised, parallel group, placebo-controlled clinical trial was conducted. Ninety-two patients undergoing various head and neck surgical procedures were randomised. Subjects received seven infusions of coded drugs (tranexamic acid or normal saline) starting at the time of skin closure. Haematological, biochemical, blood loss and other parameters were observed by the staff, who were blinded to patients’ group allocation (case or control).
Results
Patients were analysed on the basis of type of surgery. Fifty patients who had undergone surgical procedures, including total thyroidectomy, total parotidectomy, and various neck dissections with or without primary tumour excision, were included in the first group. The second group comprised 41 patients who had undergone hemithyroidectomy, lobectomy or superficial parotidectomy. There was no statistical difference in blood parameters between both groups. There was a reduction in post-operative drain volume, but this was not significant.
Conclusion
Although this prospective, randomised, placebo-controlled clinical trial found a reduction in post-operative drain volume in tranexamic acid groups, the difference was not statistically significant between the various head and neck surgical procedure groups.
The incidence of deep neck space abscesses, which can result in significant morbidity and mortality, is rising. The aetiology is thought to be dental. However, this study suggests a reduction in tonsillectomies may be associated with the rise.
Method
In a retrospective cohort study, patients were identified by a clinical code within one hospital over 10 years. Evidence of preceding infection source, management, lifestyle risks, comorbidities and demographics were extracted.
Results
Fifty-two patients were included: 23 (44 per cent) had concurrent or recent tonsillitis; 11 (21 per cent) had poor dental hygiene; 22 (42 per cent) were smokers; and 9 (17 per cent) had diabetes. The incidence of deep neck space abscess cases increased from 1 in 2006, to 15 in 2015 (correlation value 0.9; p = 0.00019).
Conclusion
The incidence of deep neck space abscess cases is increasing. Risk factors include tonsillitis, smoking and dental infection. This paper adds to the growing evidence that deep neck space abscesses are increasingly related to tonsillitis, and questions whether the threshold for tonsillectomy has been raised too high.
Identifying the nerve of origin in head and neck schwannomas is a diagnostic challenge. Surgical management leads to a risk of permanent deficit. Accurate identification of the nerve would improve operative planning and patient counselling.
Methods:
Three patients with head and neck schwannomas underwent a diagnostic procedure hypothesised to identify the nerve of origin. The masses were infiltrated with 1 per cent lidocaine solution, and the patients were observed for neurological deficits.
Results:
All three patients experienced temporary loss of nerve function after lidocaine injection. Facial nerve palsy, voice changes with documented unilateral same-side vocal fold paralysis, and numbness in the distribution of the maxillary nerve (V2), respectively, led to a likely identification of the nerve of origin.
Conclusion:
Injection of lidocaine into a schwannoma is a safe, in-office procedure that produces a temporary nerve deficit, which may enable accurate identification of the nerve of origin of a schwannoma. Identifying the nerve of origin enhances operative planning and patient counselling.
Deep neck space abscesses are common head and neck surgery emergencies. Traditionally, surgical incision and drainage has been the main treatment for deep neck abscesses. Recently, it has been suggested that ultrasound-guided drainage of neck abscesses can be an effective and less invasive alternative to incision and drainage.
Methods:
Patients with deep neck space abscesses referred to the emergency department of Amiralam Hospital were assessed and enrolled to the study if they met the inclusion criteria. Patients were randomly assigned to incision and drainage or ultrasound-guided drainage groups using sealed envelopes.
Results:
Sixty patients were evaluated, with 30 patients in each group. There was a significant difference (p < 0.001) in mean length of hospital stay between patients who underwent ultrasound-guided drainage (5.47 days) and those who underwent incision and drainage (9.70 days).
Conclusion:
Ultrasound-guided drainage is an effective and safe procedure, leading to shorter hospital stay, and thus may be a suitable alternative to incision and drainage of deep neck abscesses.
To compare the outcomes of two types of tracheostomy tubes used in major head and neck surgery.
Methods:
A retrospective study was conducted of prospectively collected data. The post-operative safety and adequacy of a single cannula tracheostomy tube was compared to a double cannula tracheostomy tube in patients undergoing tracheostomy during major oral and oropharyngeal resections.
Results:
Out of 46 patients with the single cannula tube, 7 (15 per cent) experienced significant obstruction warranting immediate tube removal, while another 9 (20 per cent) needed a change of tube or tube re-insertion for continued airway protection. In contrast, out of 50 patients with the double cannula tube, the corresponding numbers were 0 (p = 0.004) and 1 (2 per cent; p = 0.007) respectively.
Conclusion:
Insertion of a double cannula (instead of a single cannula) tracheostomy tube in the course of major oral and oropharyngeal resections offers better airway protection during the post-operative period.
The neck is an important part of the body that connects the head to the torso, supporting the weight and generating the movement of the head. In this paper, a cable-driven parallel platform with a pneumatic muscle active support (CPPPMS) is presented for imitating human necks, where cable actuators imitate neck muscles and a pneumatic muscle actuator imitates spinal muscles, respectively. Analyzing the stiffness of the mechanism is carried out based on screw theory, and this mechanism is optimized according to the stiffness characteristics. While taking the dynamics of the pneumatic muscle active support into consideration as well as the cable dynamics and the dynamics of the Up-platform, a dynamic modeling approach to the CPPPMS is established. In order to overcome the flexibility and uncertainties amid the dynamic model, a sliding mode controller is investigated for trajectory tracking, and the stability of the control system is verified by a Lyapunov function. Moreover, a PD controller is proposed for a comparative study. The results of the simulation indicate that the sliding mode controller is more effective than the PD controller for the CPPPMS, and the CPPPMS provides feasible performances for operations under the sliding mode control.
It is generally accepted that with experience clinicians develop the ability to identify patients who present with malignancy prior to a formal diagnosis. This ability cannot be quantified, nor is it a plausible substitute for investigation. This study aimed to evaluate the association between instinct and head and neck cancer diagnosis.
Methods:
A prospective study of patients requiring urgent diagnostic procedures for suspected cancer between August and December 2010 was performed. Risk factors, symptoms, signs and the clinician's impression were recorded. These were graded and subsequently correlated with histology findings.
Results:
Twenty-seven patients, with a mean age of 62.2 years, underwent a diagnostic procedure. Thirty per cent of patients were referred under the two-week pathway and 18.5 per cent had a previous history of head and neck cancer. A diagnosis of cancer was made in 37 per cent of patients. There was a positive correlation between clinical suspicion and cancer diagnosis (Kendall's tau-b = 0.648749).
Conclusion:
This study highlights the importance of clinical suspicion in cancer diagnosis. Although clinical suspicion cannot be quantified, it should be regarded as an integral part of patient assessment.
To report and discuss the surgical use of ultrasonography for draining a parapharyngeal space infection in a child.
Case report:
The use of image-guided surgery for draining a parapharyngeal abscess has been previously reported, with computed tomography for an intra-oral approach and ultrasound for an external approach. We present the first case report of a four-year-old child with a retropharyngeal abscess and a deep parapharyngeal abscess in whom neck ultrasound was used to assist intra-oral drainage.
Conclusion:
Neck ultrasound may be used in paediatric patients to visualise access to the parapharyngeal space through the intra-oral route for abscess drainage.