Is preoperative manometry in restrictive bariatric procedures necessary?

Area of Science:

• Bariatric surgery
• Gastroenterology
• Obesity medicine

Background:

• Morbid obesity is often treated with bariatric surgery for weight loss and comorbidity reduction.
• Gastroesophageal reflux disease (GERD) is prevalent in obese patients, with varied outcomes post-surgery.
• Adjustable gastric banding (AGB), sleeve gastrectomy (SG), and Roux-en-Y gastric bypass (RYGBP) show conflicting GERD results.

Purpose of the Study:

• To evaluate the impact of bariatric procedures on GERD.
• To identify preoperative predictors for surgical outcomes related to GERD.
• To guide the selection of appropriate bariatric procedures based on esophageal function.

Main Methods:

• Literature review and summary of personal clinical experience.
• Utilizing esophageal manometry to assess esophageal body motility and lower esophageal sphincter (LES) function.

Main Results:

• Esophageal manometry identifies functional esophageal disorders.
• AGB is contraindicated in patients with weak esophageal motility due to risks of dilation, stasis, esophagitis, and band deflation.
• Low LES resting pressure may contraindicate SG due to impaired antireflux mechanisms; RYGBP is suitable for all patients regardless of manometry findings.

Conclusions:

• Preoperative esophageal manometry is advised for restrictive bariatric procedures like AGB and SG.
• Manometry can help prevent GERD complications and ensure stable weight loss.
• RYGBP offers a versatile option irrespective of esophageal manometry results.