[Laparoscopic esophagotomy without diverticular resection for treating epiphrenic diverticulum in hypertonic lower esophageal sphincter].

INTRODUCTION

As a rule, epiphrenic diverticulum occurs in combination with most diverse forms of dysfunction in the lower esophageal sphincter (LES) and/or in the esophagus itself. The main symptoms are dysphagia, pain, and regurgitation. The operation consists in myotomy, diverticulum resection, and partial fundoplication via abdominal or thoracic approach using conventional or minimally invasive technique. The main risk is postoperative suture dehiscence after diverticular resection. The present study was therefore undertaken to establish whether the operation succeeds in risk patients even without resection of the diverticulum.

PATIENTS AND METHODS

In the period from 1998 to 2001, six patients were investigated preoperatively by means of esophageal manometry, endoscopy, and radiological barium swallow. The four risk patients underwent only myotomy of the LES, if appropriate, in combination with laparoscopic partial fundoplication. Resection of the diverticulum by thoracoscopy or with conventional thoracic technique was also performed in the two patients with normal risk.

RESULTS

Three of the four risk patients showed normal postoperative courses after laparoscopic myotomy and rapidly became free of symptoms and were able to eat normally. One patient died perioperatively of pulmonary complications. After thoracic diverticulum resection, both patients developed postoperative suture dehiscence with a complicated course. Altogether, freedom from symptoms with regard to dysphagia and regurgitation could be attained in five out of six patients over a follow-up period of 6 to 25 months.

CONCLUSION

In patients with epiphrenic diverticulum and disorder of LES function, myotomy alone without resection of the diverticulum may be sufficient to relieve or eliminate symptoms. Laparoscopy and the combination with partial fundoplication are the preferred techniques. In our opinion, this method must be considered in order to reduce the surgical risk in multimorbid and elderly patients.