Vagal-sparing esophagectomy: a more physiologic alternative

Area of Science:

• Gastroenterology and Surgical Oncology
• Esophageal Surgery
• Vagal Nerve Function

Background:

• Standard esophagectomy severs vagal nerves and alters the stomach, causing dumping, diarrhea, and reduced meal capacity.
• Vagal-sparing esophagectomy aims to preserve vagal nerves and gastric reservoir, potentially reducing postoperative complications.
• This technique is considered for patients with end-stage benign or early-stage malignant esophageal diseases.

Purpose of the Study:

• To evaluate the functional outcomes of vagal nerves and gastric reservoir after vagal-sparing esophagectomy.
• To compare these outcomes with normal subjects and patients who underwent other esophagectomy techniques.

Main Methods:

• Compared 15 patients post-vagal-sparing esophagectomy with normal subjects and patients after esophagogastrectomy or standard esophagectomy.
• Assessed gastric secretory function via acid output and pancreatic polypeptide response to sham feeding.
• Evaluated gastric motor function using gastric emptying scans and patient-reported symptoms of dumping and diarrhea.

Main Results:

• Vagal-sparing esophagectomy preserved vagal nerve function, indicated by increased gastric acid output and pancreatic polypeptide response.
• Gastric emptying was normal in 70% of patients, with preservation of meal capacity and absence of dumping and diarrhea.
• Patients experienced normal alimentation and bowel regulation post-procedure.

Conclusions:

• Vagal-sparing esophagectomy effectively preserves gastric secretory, motor, and reservoir functions.
• The procedure leads to normal postoperative alimentation, bowel regulation, and prevents weight loss.
• It is an ideal surgical option for benign esophageal diseases, Barrett's esophagus with high-grade dysplasia, and early esophageal carcinoma.