Appropriateness and diagnostic yield of referrals for oesophagogastroduodenoscopy at the Korle Bu Teaching Hospital.

BACKGROUND

Increasing endoscopy workload in open-access services necessitates adoption of appropriateness criteria to check abuse and improve yield.

OBJECTIVE

To assess the appropriateness of referrals for oesophagogastroduodenoscopy (OGD) and its relationship to yield at Korle-Bu Teaching Hospital (KBTH), Accra.

METHODS

Referrals, signs, and symptoms of 375 consecutive patients for diagnostic oesophagogastroduodenoscopy were evaluated over four months. Indications were categorized as appropriate or inappropriate using the American Society of Gastrointestinal Endoscopy (ASGE) guidelines and endoscopic findings (yield) categorized as positive or negative. The relationship between these was analyzed and the diagnostic accuracy of the guidelines determined.

RESULTS

There were 209 (55.7%) females, and 316 (84.3%) open-access procedures. Mean age was 46±17 years. Dyspepsia, 272 (72.5%) and epigastric tenderness, 192 (41.4 %) were the commonest symptom and sign respectively. Only 133 (35.5%) reported alarm symptoms. Appropriate referrals constituted 221(58.9%). Inappropriate referral rate was similar for endoscopists and non-endoscopists. Positive yield was 62.7%. Male sex, age > 45 years, haematemesis, persistent vomiting, gastroenterologists' referrals and epigastric tenderness were the best predictors of positive yield. Gastritis, 121 (32.3%), duodenal ulcer, 48 (12.5%) and oesophagitis, 36 (9.6%) were the leading endoscopy diagnoses. Carcinomas were reported only after 45 years and 18 (81.8%) of the cases had alarm symptoms.

CONCLUSIONS

Inappropriate referral for OGD rate is high in Accra. Yield is improved by adherence to the ASGE guidelines but its accuracy as a screening tool for OGD at Korle- Bu Teaching Hospital is too low to recommend it for adoption.