Investigating noise isolation's effect on postoperative pain after major abdominal surgery

Effect of Noise Isolation During General Anesthesia on the Incidence of Moderate to Severe Postoperative Pain in Patients Undergoing Major Abdominal Surgery

NA · The Second Affiliated Hospital of Chongqing Medical University · NCT06316440

This study is testing if wearing noise-cancelling earphones during major abdominal surgery can help reduce pain after the operation for patients aged 18 to 70.

Quick facts

PhaseNA
Study typeInterventional
Enrollment304 (estimated)
Ages18 Years to 70 Years
SexAll
SponsorThe Second Affiliated Hospital of Chongqing Medical University (other)
Locations1 site (Chongqing, Chongqing)
Trial IDNCT06316440 on ClinicalTrials.gov

What this trial studies

This study aims to explore how noise isolation during general anesthesia influences the occurrence of moderate to severe postoperative pain in patients undergoing major abdominal surgery. Participants will wear noise-cancelling earphones during their procedure to assess whether this intervention can lead to a reduction in pain levels and the need for analgesics post-surgery. The study will include patients aged 18 to 70 who are classified as ASA 1-3 and are undergoing elective surgeries lasting at least two hours.

Who should consider this trial

Good fit: Ideal candidates are adults aged 18 to 70 undergoing elective major abdominal surgery under general anesthesia.

Not a fit: Patients with chronic pain conditions, hearing abnormalities, or those requiring mechanical ventilation post-surgery may not benefit from this study.

Why it matters

Potential benefit: If successful, this approach could significantly reduce postoperative pain and the reliance on pain medications for patients after major abdominal surgeries.

How similar studies have performed: While the specific approach of using noise isolation in this context is novel, similar studies have indicated that environmental factors can influence postoperative pain outcomes.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Between the ages of 18 and 70, both male and female.
* American Society of Anesthesiologists Classification 1-3
* Patients undergoing elective major abdominal surgery under general anesthesia(Surgery time ≥ 2h)
* Voluntarily accept patient controlled intravenous analgesia and signed informed consent

Exclusion Criteria:

* Patients with previous severe disease
* Patients with hearing abnormalities
* Patients requiring mechanical ventilation or undergoing epidural catheters or other types of regional anesthesia after surgery
* Patients with chronic preoperative pain and/or long-term analgesic use
* Patients who could not cooperate with the study for any reason

Where this trial is running

Chongqing, Chongqing

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.

View on ClinicalTrials.gov →

Conditions: Postoperative Pain, noise Isolation, major abdominal surgery, postoperative Pain

Last reviewed 2026-05-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.