Geneva, May 4 -- International Clinical Trials Registry received information related to the study (ChiCTR2600123104) titled 'The effects of pre-stimulation of the vagus nerve on the recovery of gastrointestinal function after ERCP and the perioperative parasympathetic response' on April 21.

Study Type: Interventional study

Study Design: Parallel

Primary Sponsor: The Second Affiliated Hospital of Anhui Medical University

Condition: Biliary calculi

Intervention: Group T:Preoperatively, patients will undergo transcutaneous auricular vagus nerve stimulation (taVNS) applied to the left tragus or cymba conchae, delivered at 25 Hz with a 200 µs pulse width and 1-2 mA current-titrated to a mildly perceptible yet tolerable pricking se...