Pain Clinical Trial
Official title:
Ultrasound-Guided Obturator Nerve Block for Ambulatory Hip Arthroscopy: A Prospective, Randomized Controlled Trial
Hip arthroscopy is commonly associated with moderate-to-severe postoperative pain. The purpose of this study is to investigate the analgesic efficacy of preoperative obturator nerve block as measured by postoperative pain scores and postoperative analgesic requirements. The primary outcome will be the patient's first reported pain scores in the post anesthesia care unit (PACU).
Status | Recruiting |
Enrollment | 70 |
Est. completion date | September 2015 |
Est. primary completion date | September 2015 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | 18 Years to 65 Years |
Eligibility |
Inclusion Criteria: - Primary unilateral ambulatory hip arthroscopy - Age 18 to 65 years - ASA physical status I to III - Ability to follow the protocol. Exclusion Criteria: - Age <18 or >65 years of age - Contraindications to peripheral nerve blockade - Allergy to opioids or local anesthetics - Allergy to sulfa medications or nonsteroidal anti-inflammatory medications - Chronic opioid - Patient refusal |
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Outcomes Assessor), Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
United States | Virginia Mason Medical Center | Seattle | Washington |
Lead Sponsor | Collaborator |
---|---|
Benaroya Research Institute |
United States,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Primary | Immediate pain score upon arrival to phase 1 PACU (NRS pain score) | Initial NRS pain score upon arrival in the post anesthesia cafe unit (PACU) | Within 5-30 minutes upon leaving operating room and arrival to Phase I recovery | No |
Secondary | Post anesthesia care unit discharge (Time required to meet discharge criteria from phase 2 PACU) | Time required to meet discharge criteria from phase 2 PACU, able to be discharged home | Wihtin 6 hours from end of surgery. | No |
Secondary | Nausea (Number of episodes of nausea and vomiting during the 1st 24 hours postoperatively) | Number of episodes of nausea and vomiting during the 1st 24 hours postoperatively | 1st 24 hours after surgery | No |
Secondary | Sleep quality on on the day of surgery (Did subjects have difficulty going to sleep or wake up from sleep due to pain?) | Did subjects have difficulty going to sleep or wake up from sleep due to pain? | Within 12-24 hours after discharge to home (from the hospital); typically the same night of the day of surgery. | No |
Secondary | Opioid (analgesic) consumption | Cumulative 24-hr postoperative opioid consumption | From the start of surgery to 24 hours after surgery complete (average surgical duration 2.5 hours). | No |
Secondary | Pain scores for the 1st 24 hours after surgery (Numeric Rating Scale Pain) | Numeric Rating Scale Pain prior to hospital discharge, 1 hour after arriving home, 4 hours after arriving home, 1 hour prior to going to sleep, 1 hour after waking up the next morning, 24 hours after surgery | 1st 24 hours after completion of surgery. | No |
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