SP6.1.2 Endoscopic versus Laparoscopic Surgical Management of Achalasia: A Decision Analysis

Abstract

Aims To compare achalasia treatment outcomes at one and two years post intervention. Methods A decision-tree model was populated with data from 36 randomised controlled trials to compare: pneumatic dilation, botulinum toxin injection, Heller myotomy (+/- Dor or Toupet), Dor and peroral endoscopic myotomy (POEM). Freeman-Tukey arcsine square root transformation under random effects model, to account for heterogeneity, was used to calculate weighted pooled model transition probabilities. Utility was 1, 0.5 and 0 for treatment success without significant complication, success with significant complications and treatment failure respectively. Deterministic sensitivity analysis and Monte Carlo Probabilistic Sensitivity Analysis (PSA) set to 10000 iterations tested model uncertainty. Results Laparoscopic Heller myotomy had marginally superior utility over POEM but only if the risk of significant complications remained less than 7.2% and 7.9% at one and two years respectively. Conclusion Superior treatment selection depends on individual risk of complications. Future research should therefore focus on personalised risk stratification and cost-effectiveness implications.