A Heller-Dor procedure was performed by laparotomy (group A: n = 8) or by laparoscopy (group B: n = 12) after failure of one to 17 sessions of intraluminal dilatations (n = 13) or as a primary treatment of oesophageal achalasia (n = 7). The oesophagomyotomy was extended over the thoracic oesophagus by thoracoscopy in two patients having vigorous achalasia. Injury to the oesophageal mucosa occurred in two group A patients who had previously been dilated. At follow-up (range: 1 to 113 months), 6 patients of group A (75%) and 10 of group B (83.3%) had no residual dysphagia. The four patients (group A : n = 2; group B : n = 2) who complained of heartburn prior to the operation were asymptomatic, only one group A patient developed symptoms of reflux, and oesophageal pi-I-monitoring was normal in the 6 group B patients investigated at follow-up. The laparoscopic approach reduces the magnitude of the operation, and the magnified overview permits precise dissection of the intraparietal adhesions which may develop after numerous sessions of dilatation.
Collard, J.-M., Romagnoli, R., Lengelé, B., Salizzoni, M., & Kestens, P.-J. (1996). Heller-Dor procedure for achalasia: From conventional to video-endoscopic surgery. Acta Chirurgica Belgica (Bilingual Edition), 96(2), 62-65. https://hdl.handle.net/2078.5/144050 (Original work published 1996)