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Effect of Parecoxib on the Change of Shoulder Pain Threshold After Gynecological Laparoscopies

Phase 4
Completed
Conditions
Postoperative Pain Management, Pain Threshold, Shoulder Pain, Laparoscopies
Interventions
Drug: Placebo
Registration Number
NCT01843010
Lead Sponsor
First Affiliated Hospital, Sun Yat-Sen University
Brief Summary

This prospective, double blind, placebo-controlled, parallel group study will be conducted in the first affiliated hospital of Sun yat-sen university in Guangzhou, China. Patients aged 18-65 (ASA I-II) undergoing elective gynecologic laparoscopic surgery with general anesthesia will be involved in this study. According to previous studies and our pilot trial, estimated 120 patients will be involved in this study. All eligible patients will be randomly assigned to two groups. In group P, patients will receive parecoxib 40mg intravenously 30min before intubation, 8h and 20h after the surgery,respectively. In Group C, patients will receive normal saline at the same time points. The shoulder pressure pain thresholds will be measured with a pressure algometer by an independent doctor blinding to medication and grouping at the day before surgery, 24h and 48h after surgery. Moreover, the intensity of shoulder pain and side effects will be evaluated by another independent doctor at 24h and 48h after surgery. At the end of the observation, the intensity of the maximal shoulder pain will be assessed.

Detailed Description

Not available

Recruitment & Eligibility

Status
COMPLETED
Sex
Female
Target Recruitment
140
Inclusion Criteria
  • females age 18-65yr,
  • American Society of Anesthesiologists (ASA)I-II,
  • Body Mass Index(BMI) 18-25kg/m2.
Exclusion Criteria
  • a history of severe cardiac, pulmonary, hepatic, renal disease, chronic drug or alcohol abuse;
  • the presence of preoperative shoulder pain or any chronic pain syndrome, long-term use of analgesics; allergy or contraindications to nonsteroidal anti-inflammatory drugs (allergy, peptic ulcer disease, gastroesophageal reflux disease, renal insufficiency, coagulopathy) and any other drugs used in the study;
  • patient's pain evaluation is judged unreliable;
  • patients with conversion to a laparotomy;
  • refuse to coordinate with the follow-up tests.

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
ParecoxibParecoxibIntravenously Parecoxib 40mg at 30min before intubation, 8h and 20h after surgery.
PlaceboPlaceboNormal saline 5ml will be intravenously infused at the same time points., respectively.
Primary Outcome Measures
NameTimeMethod
The change of shoulder pressure pain thresholdThe pressure pain thresholds are measured at the day before surgery, 24h and 48h after surgery

The patients keep sitting position, and the pressure pain thresholds are measured twice at a fixed point in bilateral levator scapulae, supraspinatus, pectoralis major and flexor carpi ulnaris with a pressure algometer (FPX25, Wagner Instruments, USA) by an independent doctor.

Secondary Outcome Measures
NameTimeMethod
The severity of shoulder painAt the day before surgery, 24h and 48h after surgery

The patients are asked to rate the severity of shoulder pain via a visual analog scale (VAS) ranging from no pain (0) to worst possible pain (10) by another independent doctor.

Trial Locations

Locations (1)

Department of Anesthesiology, The First Affiliated Hospital, Sun Yat-sen University.

🇨🇳

Guangzhou, Guangdong, China

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