Ear, nose and throat surgery

This chapter discusses the anaesthetic management of ear, nose and throat (ENT) surgery (otolaryngological surgery). It begins with a discussion of relevant general principles (including the shared airway), and covers airway obstruction and jet ventilation. Surgical procedures covered include grommet insertion; tonsillectomy; adenoidectomy; myringoplasty; stapedectomy; tympanoplasty; nasal cavity surgery; microlaryngoscopy; tracheostomy; laryngectomy; radical neck dissection, and parotidectomy. It includes pertinent anaesthetic features for a series of additional miscellaneous ENT procedures.

Elective ENT surgery during the COVID-19 pandemic: Experience from a single UK centre

Aim To analyse the outcomes of patients who underwent elective ENT surgery during the first peak of the COVID-19 pandemic in a COVID free site. Methods This is a retrospective single centre case series of all patients undergoing elective ENT surgery over a 16-week period between 1 April and 22 July 2020. Results No patients, out of our cohort of 85, developed postoperative COVID-19 symptoms or complications of COVID-19. There were no mortalities. Conclusion The results suggests that hospitals can safely manage elective ENT operating services during the pandemic.

1434 An Audit of Surgical Consent Standards in Patients Undergoing Elective ENT Surgery

Aim Good Surgical Practice (RCS England) and GMC guidelines inform a surgeon’s practice in the consent process for an operation. Since the Covid-19 pandemic, many surgical departments have converted from face-to-face to telephonic consultations. The clinic letter is of increased importance given that it forms a key part of the medical record which the patient should receive to ensure sufficient time and information to make an informed decision. Method Clinic letters of patients undergoing elective ENT surgery at our trust over a four-week period were examined in this retrospective audit of compliance with RCSEng and GMC guidelines. Additional data was collected on clinician grade and proportion of letters sent to patients. Patients rated satisfaction with consultation on a five-point Likert scale. Results 135 eligible patients were included in our audit and the majority were listed by a consultant (57%). In all domains, consultant letters were more likely to be comprehensive as compared to registrars. Overall quality of clinic letters was highly variable regarding documentation of diagnosis (52%), surgical risks (50%), discussion of alternative or no treatment (30%) and registrar discussion with consultant (31%). There was also a stark difference between registrars and consultants sending patients copies of clinic letters (10% vs 47%). Only 10% of patients received a leaflet on their condition. 90% of patients were either satisfied or very satisfied with their clinic consultation. Conclusions Refresher sessions on consent, updated template letters and increased provision of patient information leaflets will be introduced to the ENT department, and improvements monitored with further re-audit.

Obstructing Sleep Apnea in Children with Genetic Disorders—A Special Need for Early Multidisciplinary Diagnosis and Treatment

Background—Children with genetic disorders have multiple anatomical and physiological conditions that predispose them to obstructive sleep apnea syndrome (OSAS). They should have priority access to polysomnography (PSG) before establishing their therapeutic protocol. We analyzed the prevalence and the severity of OSAS in a particular group of children with genetic disorders and strengthened their need for a multidisciplinary diagnosis and adapted management. Methods—The retrospective analysis included children with genetic impairments and sleep disturbances that were referred for polysomnography. We collected respiratory parameters from sleep studies: apnea–hypopnea index (AHI), SatO2 nadir, end-tidal CO2, and transcutaneous CO2. Subsequent management included non-invasive ventilation (NIV) or otorhinolaryngological (ENT) surgery of the upper airway. Results—We identified 108 patients with neuromuscular disorders or multiple congenital anomalies. OSAS was present in 87 patients (80.5%), 3 of whom received CPAP, 32 needed another form of NIV during sleep, and 15 patients were referred for ENT surgery. The post-therapeutic follow-up PSG parameters confirmed the success of the treatment. Conclusions—The upper airway obstruction diagnostics and management for children with complex genetic diseases need a multidisciplinary approach. Early detection and treatment of sleep-disordered breathing in children with genetic disorders is a priority for improving their quality of life.

666 Innovations in ENT Surgery During The COVID-19 Pandemic

Introduction Severe acute respiratory syndrome coronavirus 2 (SARS-COV-2), is responsible for the coronavirus disease 2019 (COVID – 19) global pandemic. Similar coronavirus epidemics over the past years affected healthcare workers significantly. Aerosol generating procedures (AGPs) presented a unique risk to ear, nose and throat (ENT) Surgeons. We introduce various methods of reducing risk in ENT AGPs. Recommendations During trachesostomies we advocate the adoption of a specialist checklist based on ENT UK guidelines. We also advise the use of a clear drape to create a clear barrier between the patient and staff. For ear surgery we advise suturing 2 microscope pieces together end-to-end so that a clear drape can sperate the patient from surgeon. During nasal and sinus surgery, we advise attaching a clear drape to the sterile camera drape used in rigid nasal endoscopy to create a barrier between patient and surgeon. Discussion Our recommendations will create an extra barrier between the patient and the rest of healthcare team. This should reduce the risks to theatre staff from AGPs. Conclusions COVID 19 is a serious health issue affecting healthcare workers, especially during AGPs in ENT surgery. We recommend several techniques to reduce risk. These can also be used during future epidemics.

786 Retrospective analysis of paediatric ENT surgery outcomes during the COVID pandemic

Introduction Studies show high morbidity/mortality for adults with peri-operative SARS-CoV-2 infection, leading to recommendations curtailing elective operations during the height of the pandemic. Our understanding of the risks associated with paediatric surgery is more limited, with preliminary data suggesting lower morbidity/mortality than in adults. A < 1% incidence of COVID-19 in paediatric patients undergoing preoperative universal screening is reported, and even in those testing positive, morbidity and mortality seem to be low. As waiting lists swell and the detriment associated with delaying surgery mounts, it is imperative to accurately quantify the risks of surgery in the paediatric population. Method Retrospective review of all paediatric ENT operations performed at the Evelina Children’s Hospital at the height of lockdown, from March to May 2020. Results 61 procedures were performed on 56 patients. 50% had a pre-operative SARS-CoV-2 nasopharyngeal swabs. All cases involved a change in anesthetic practice; 2 cases involved a change in surgical practice. We noted 2 medical complications and 1 surgical complication. All patients are currently extant. No staff or patients subsequently developed COVID. Conclusions Our perioperative infection rates and mortality/morbidity figures concord with figures published elsewhere in literature. We are cautiously optimistic regarding risks associated with paediatric ENT surgery.