Effect of Noise Blocking During General Anesthesia on Postoperative Pain

The Second Affiliated Hospital of Chongqing Medical University90 enrolled

Overview

To investigate the effect of noise blocking during general anesthesia on postoperative pain in patients undergoing laparoscopic abdominal surgery. The aim of this study was to determine whether noise blocking can reduce postoperative pain, analgesic use, and its possible effects on intraoperative electrocorticogram.

Study Type

INTERVENTIONAL

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Enrollment

Conditions

Postoperative Pain

Interventions

Wear noise-cancelling earphonesDEVICE

Intervention of wearing noise-canceling earphones after general anesthesia

Eligibility

Sex: ALLMin age: 18 YearsMax age: 70 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * ASA Classification ⅰ-ⅲ * Patients undergoing elective laparoscopic abdominal surgery under general anesthesia * Voluntarily accept PCIA 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

Locations (1)

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

Chongqing, Chongqing Municipality, China

Outcomes

Primary Outcomes

Maximum pain score (NRS score) at 0-24 hours postoperatively

NRS score: Pain was assessed on a scale of 0-10, with 0 being no pain and 10 being most painful

Time frame: From ending of the surgery to 24 hours postoperatively

Pain score (NRS score) at 0-6 hours postoperatively

NRS score: Pain was assessed on a scale of 0-10, with 0 being no pain and 10 being most painful

Time frame: From ending of the surgery to 6 hours postoperatively

Pain score (NRS score) at 6-12 hours postoperatively

NRS score: Pain was assessed on a scale of 0-10, with 0 being no pain and 10 being most painful

Time frame: From 6 hours postoperatively to 12 hours postoperatively

Pain score (NRS score) at 12-24 hours postoperatively

NRS score: Pain was assessed on a scale of 0-10, with 0 being no pain and 10 being most painful

Time frame: From 12 hours postoperatively to 24 hours postoperatively

Secondary Outcomes

Patient controlled analgesia pump analgesic consumption

Analgesic requirements was assessed by recording the volume of patient controlled analgesia pump

Time frame: From the time when the surgery was completed until to 24 hours after surgery

Postoperative hyperalgesia after surgery

Postoperative hyperalgesia was measured by the ratio of pressure pain threshold at time when discharged from postanesthesia care unit compare to before surgery

Time frame: from the 30 minutes before the surgery until to 30 minutes after surgery

Data from ClinicalTrials.gov

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