A rapid pull-through technique for measuring lower esophageal sphincter pressure.

Area of Science:

• Gastroenterology
• Physiology

Background:

• The conventional station pull-through technique (SPT) for recording lower esophageal sphincter pressure (LESP) has inherent disadvantages.
• A need exists for a more suitable and accurate method for LESP measurement.

Purpose of the Study:

• To evaluate a rapid pull-through technique (RPT) for recording LESP.
• To compare the results of RPT with those obtained by the conventional SPT.

Main Methods:

• RPT involves rapid withdrawal of recording sensors across the lower esophageal sphincter (LES) during a brief period of suspended respiration (10-20 seconds).
• This method aims to prevent "artifact" from respiratory LES motion and ensure precise measurement endpoints.

Main Results:

• LESP measurements by RPT (24.3 ± 0.5 mm Hg) were comparable but significantly greater than those by SPT (21.1 ± 9.1 mm Hg) in 12 normal subjects.
• Intraobserver and interobserver error were significantly lower for RPT than SPT (P ≤ 0.01).
• Inter-study correlation of LESP was greater with RPT compared to SPT.

Conclusions:

• RPT is a convenient and easier-to-perform method for recording LESP.
• RPT yields more reproducible LESP values than SPT, making it a preferable technique.