Analgesic efficacy of femoral nerve block on intraoperative fentanyl consumption for endovenous radiofrequency ablation and phlebectomy of varicose veins: A Randomized controlled study

Phase 4

Recruiting

• Conditions: Varicose veins; Varicose vein; postoperative pain; femoral nerve block

• Registration Number: TCTR20190808005
• Lead Sponsor: Faculty of medicine, Siriraj hospital, Mahidol university

Brief Summary

Not available

Detailed Description

Not available

Study Timeline

• Study Start: 2019-08-08
• Study Completion: 2020-06-30
• Last Update Posted: 19 August 2024

Recruitment & Eligibility

• Status: Recruiting
• Sex: All
• Target Recruitment: 48

Inclusion Criteria

varicose veins at anteromedial side of leg

Exclusion Criteria

1. refusal to participate in research
2. weight under 45 kgs.
3. allergy to fentanyl
4. uncontrolled diabetes
5. poor controlled of diabetes
6. contraindication of femoral nerve block
7. cognitive impairment or psychiatric problems
8. neurological deficit at legs
9. use of more than 20 mg of oral morphine for chronic pain

Study & Design

• Study Type: Interventional
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Total dose of fentanyl during surgery The end of operation Dose of fentanyl

Secondary Outcome Measures

Name	Time	Method
Total dose of analgesic medication 24 hours after the end of operation dose of analgesic medication,Motor blockade of the quadriceps femoris 1 hour after finish operation The grading of quadriceps femoris strength,Postoperative pain at rest and on movement intraoperative, PACU, 6 hours after finish the operation, 12 hours after finish the operation Visual analogue scale,Time to first rescue analgesia dose after finish the operation 24 hours after finish the operation Minutes,Local anesthetic systemic toxicity 24 hours after finish the operation yes/no