Silence during surgery may ease Post-Op pain

NCT ID NCT06316440

Completed Symptom relief Sponsor: The Second Affiliated Hospital of Chongqing Medical University Source: ClinicalTrials.gov ↗

First seen Jun 27, 2026 · Last updated Jun 27, 2026

Summary

This study tested whether wearing noise-cancelling earphones during general anesthesia can lower the chance of moderate to severe pain after major abdominal surgery. Researchers enrolled 304 adults aged 18-70 undergoing elective surgery lasting at least 2 hours. The goal was to see if blocking out operating room noise could reduce pain scores and the amount of pain medication needed.

What this could mean

Our plain-language read of the trial. This is informational only — not medical advice or a prediction.

Active substance: noise-cancelling earphones
What this could lead to: If it works, this simple, low-cost approach could help reduce pain and the need for painkillers after major abdominal surgery.
What could go wrong: This is a single completed study with 304 participants. The effect may be small or not apply to all types of surgery or patients.

This is an AI summary of the original study and may miss details. Read our disclaimer.

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Conditions

The condition(s) this trial relates to.

Pain, Postoperative

As listed by the trial registrant

The condition terms exactly as the trial's registrant entered them.

POSTOPERATIVE PAIN

Contacts and locations

Locations

Department of Anesthesiology, The Second Affiliated Hospital, Chongqing Medical University

Chongqing, Chongqing Municipality, 400010, China

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