Abstract
Aim: 1. Investigate the characteristics of adult patients presenting with acute oesophageal soft food bolus obstruction (SFBO) and impacted foreign body (IFB) at two New Zealand district health boards (DHBs). 2. Review current management against international guidelines for SFBO and IFB.
Methods: A multicentre retrospective search of the Provation® endoscopy database identified patients presenting with acute oesophageal obstruction. Utilising electronic patient records, key data points including patient demographics, risk factors, pre-endoscopic medical therapies utilised, diagnostic radiological investigations performed and endoscopic complications were identified. Key timepoints and delays in the patient's hospital journey from oesophageal obstruction to therapeutic endoscopy were recorded. The probability of failing to undergo therapeutic endoscopy for SFBO within the timeframes advised in clinical guidelines as a result of a delay in referral to the endoscopy service was calculated.
Results: Over a cumulative 10.5-year period of data collection, 227 oesophago-gastro-duodenoscopies were performed: 195 SFBO, 16 IFB, 16 no obstruction identified. Median patient age was 57 (15-95) years. 143 male and 84 female patients. Radiographs were performed in 50.9% of uncomplicated SFBO. Pre-endoscopy medical therapies were administered in 41.4% of the cases. Median time delay from onset of obstruction to therapeutic endoscopy varied: SFBO 19h 0min, complete obstruction 17h 45min, impacted batteries 1h 15min, and presumed sharp objects 6h 0min. Three patients presenting with a soft food bolus obstruction failed to undergo therapeutic endoscopy due to a delay in referral to the endoscopy service, probability 0.034 (95% CI 0.012, 0.095). Two patients died of complications secondary to oesophageal obstruction.
Discussion: Oesophageal obstruction is a common gastroenterological presentation. At two large centres in New Zealand, patients waited considerably longer than the recommended timeframe from obstruction to therapeutic endoscopy. Contributing factors included patient-related delays to presentation, hospital system-related factors and delays in referral for endoscopy contributed to by unnecessary pre-endoscopic medical therapies and radiographic investigations. Education about oesophageal obstruction together with robust local guidelines have potential to reduce delays and length of hospital stay, as well as reduce patient discomfort and complications.