P-EGS08 What is the Best Risk Prediction Model for Oesophageal Perforation?

Background Oesophageal perforation is a challenging surgical condition associated with high mortality and morbidity. There is a lack of consensus regarding the optimal treatment strategy, when and whom to operate on. Treatment options include primary repair, t-tube repair, emergency oesophagectomy, endoscopic therapy, and palliation. Whilst many risk prediction models exist, the only specific score to predict mortality in oesophageal perforations is the Pittsburgh Severity Score (PSS). However, there is limited evidence on its validity and even less literature to predict short and long-term morbidity in these patients. Methods We compared and validated commonly used risk prediction models, including the PSS, the National Emergency Laparotomy Audit score (NELA score), the Portsmouth Physiological and Operatic Severity Score for the enumeration of Mortality (P-POSSUM), and the Surgical Outcome Risk Tool (SORT) using a dataset of 83 patients ranging from 2009 to 2021. The power to predict mortality and morbidity was assessed using the comprehensive complication index (CCI). The CCI was calculated using complications for both operative and non-operative cohorts. Results Of the scores assessed, NELA showed the most robust predictive value for in-hospital mortality, 30-day mortality, and 90 mortality (AUROC 0.812, 0.8602, 0.8302, respectively). The PSS also showed significant predictive value for in-hospital mortality, 30-day mortality, and 90 mortality (AUROC 0.792, 0.856, 0.813 respectively). Furthermore, NELA had the strongest correlation between score and CCI (rs 0.644 p < 0.001). Conclusions Despite not being validated for oesophageal pathology, NELA appears to be the optimum scoring model to predict mortality and morbidity for this patient population. This is the first study to compare the efficacy of different risk prediction models in oesophageal perforations and could be used to inform shared decision making and peri-operative outcomes. Further large-scale validation of risk prediction tools is required to corroborate these findings.

Concurrent thoracic pathology identified with radiology in hyperthyroid cats referred for radioiodine therapy

Objectives Radioiodine (RAI) treatment for hyperthyroidism is becoming increasingly available in the UK. Pretreatment assessment is commonly performed, as patient handling is limited once RAI has been administered. The aims of this study were to determine the prevalence of thoracic pathology using thoracic radiography in hyperthyroid cats referred for RAI treatment and to determine the value of this technique pretreatment. Methods The hospital databases were searched for hyperthyroid cats referred for RAI treatment at the Feline Centre, Langford Vets, between January 2012 and July 2016. Radiographs were reviewed by Diplomates of the European College of Veterinary Diagnostic Imaging at the time of treatment and each set of radiographs was subsequently reviewed by one radiologist for the study. Cardiorespiratory signs were recorded, if present, and any change in treatment plan or suitability for RAI treatment was documented. Results Two hundred and fifty-two cats were included in the study. Thoracic pathology was identified in 77% (n = 194/252) of the cats, of which 59% (n = 115/194) had pulmonary abnormalities with bronchial and bronchointerstitial patterns most frequently; 57% (n = 111/194) had skeletal abnormalities and 43% (n = 84/194) had cardiac abnormalities, with mild-to-moderate cardiomegaly most prevalent. Other abnormalities included sternal lymphadenomegaly (7%; n = 13/194), mediastinal pathology (3%; n = 5/194), oesophageal pathology (2%; n = 4/194) and pleural space disease (0.5%; n = 1/194).Twelve cases (6%) had a change in their treatment plan as a result of thoracic radiographic abnormalities, of which five subsequently underwent RAI treatment. Conclusions and relevance A low prevalence of significant thoracic pathology was identified on radiographs in hyperthyroid cats referred for RAI treatment. Incidental thoracic abnormalities were found much more commonly; hence, results of thoracic radiology need to be combined with the clinical picture, to decide whether further investigations or alterations to the treatment plan are required pre-RAI.

Atypical dysphagia with end-stage oesophageal disease 30 years post Angelchik device placement in a 72-year-old man

Here we describe an atypical presentation of progressive dysphagia in a 72-year-old man leading to frequent regurgitations over the course of 30 years. Investigations revealed a foreign body ring surrounding the proximal stomach and dilation of the oesophagus proximal to the gastro-oesophageal junction. An Angelchik device was extracted; however, the patient’s rapid deterioration prior to surgery, in addition to his severely dysfunctional oesophagus, required placement of a jejunostomy feeding tube. Device removal was complicated by prior abdominal surgery, necessitating a thoracic approach. This case offers guidance on the management of patients with Angelchik prostheses who develop similar complications, while drawing attention to the importance and difficulties of early, definitive diagnosis in oesophageal pathology such as achalasia and gastro-oesophageal reflux disease.

Outcome and follow-up of patients requiring emergency oesophagoscopy for food bolus obstruction over a 5-year period

Introduction: OFBO is a common occurrence in the emergency setting. Endoscopic removal via rigid or flexible oesophagoscopy is only performed following failure to pass the obstruction after a period of observation and medical management. Despite recommendations from the ESGE, there is currently a lack of high-quality evidence to support the diagnostic work-up of these patients. Purpose: The purpose of this single centre study was to assess the outcome and follow-up of this population over a 5-year period. We retrospectively collected data regarding all patients undergoing emergency oesophagoscopy between 2012–2017 and recorded their outcomes and subsequent follow-up. R esults: We found that only 33% of patients had diagnostic investigations performed post-operatively and oesophageal pathology was detected in 44% of those investigated. Eosinophilic oesophagitis was the most common diagnosis and OGD was more likely to detect pathology compared to other modalities. C onclusion: Our study suggests that our findings could have been higher had all our patients underwent further investigation. Therefore, we would recommend a diagnostic work-up in all patients following a discussion of the risks associated with an endoscopic examination. We thoroughly support further large-scale collaborative research which can shed better light of evidence on the topic.

Recurrent laryngeal nerve palsy due to displacement of a gastric band

The left recurrent laryngeal nerve is at increased risk of compression by oesophageal pathology due to its long course through the neck and thorax. Here we report a case of left vocal cord palsy secondary to displacement of a gastric band, resulting in oesophageal dilatation and neuropraxia of the left recurrent laryngeal nerve. Vocal cord function partially improved following removal of the gastric band.