Colorectal resection
Conditions
Interventions
The Active transcutaneous Auricular Vagus Nerve Stimulation (taVNS) Group:Based on random grouping results, electrodes were placed on the left ear concha region, and stimulation parameters were adjust
the current was gradually increased within 30 seconds until the patient felt an obvious tingling pain threshold, then decreased to a level slightly below the threshold and maintained. Stimulation was
Sham Stimulation Group:Electrode placement is identical to that in the active group
the current is also increased to the pain threshold within 30 seconds, then adjusted down to a slightly lower threshold, after which the device is kept switched off to simulate sham stimulation. The t
Sponsors
The First People's Hospital of Changde City
Eligibility
Sex/Gender
All
Age
25 Years to 75 Years
Inclusion criteria
Inclusion criteria: 1. ASA physical status I–III; 2. Aged between 25 and 75 years; 3. No history of previous abdominal surgery; 4. Voluntary participation and signed informed consent.
Exclusion criteria
Exclusion criteria: 1. Conversion from laparoscopic surgery to laparotomy; 2. Inability to comply with trial requirements; 3. Previous history of severe vagal reflex (systolic blood pressure decreased by >30% from baseline, heart rate 30 kg/m².
Design outcomes
Primary
| Measure | Time frame |
|---|---|
| Time to first postoperative flatus (hours); | — |
Secondary
| Measure | Time frame |
|---|---|
| HRV analysis;Time to first defecation;The incidence of postoperative nausea and vomiting;Total perioperative opioid consumption (converted to morphine equivalents);Total length of hospital stay;inflammatory markers; | — |
Countries
China
Contacts
Public ContactWang Xianxue
The First People's Hospital of Changde City
Outcome results
None listed