Assessment of the Effect of Age on Duration of Analgesia From Single-shot Femoral Nerve Blocks

Cohort study to examine the effect of age on duration of analgesia in patients receiving single-shot femoral nerve block prior to surgery, by postoperative phone follow-up questionnaire.

Study Overview

• Status: Recruiting
• Conditions: Analgesia

Detailed Description

The purpose of this study is to find out how differences in age can affect the duration of pain relief from a femoral nerve block. Complete recovery after leg surgery involves healing of tissues at the surgical site, recovery of muscle strength and range-of-motion. Some pain is normally experienced after leg surgery. At the hospital, pain is usually treated with pain medicines, and/or a nerve block procedure. A nerve block involves injecting a local anesthetic beside the nerves to numb the nerves that supply feeling to the knee joint and surrounding tissues. The choice as to whether a participant has a nerve block or not is made by the participant and their surgeon and is not determined by this research study. The study aim is to find out how long a nerve block can relieve postsurgical pain, and whether that duration is affected by the age of the participant.

• Study Type: Observational
• Enrollment (Anticipated): 100

Contacts and Locations

• Study Contact: Name: Adam J Claessens, DO; Phone Number: 206-291-7445; Email: claessen@uw.edu

Study Locations

• United States
  • Washington
    • Seattle, Washington, United States, 98195
      • Recruiting
      • University of Washington Medical Center
      • Contact: Vanessa Loland, MD; Email: vloland@uw.edu

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: 18 years and older (ADULT, OLDER_ADULT)
• Accepts Healthy Volunteers: Yes
• Genders Eligible for Study: All

• Sampling Method: Non-Probability Sample

Study Population

Adult ambulatory surgery patients receiving a single-shot peripheral femoral nerve block preoperatively as part of their clinical anesthesia care on day-of-surgery.

Description

Inclusion Criteria:

• Adult patients (age >18 years)
• American Society of Anesthesiology physical status 1-3
• Having ambulatory surgery, who have received a single-shot femoral nerve block
• Able to read and understand English
• Have access to a phone after surgery

Exclusion Criteria:

• Pediatric patients (age <18 years)
• American Society of Anesthesiology physical status >3
• Unable to read and understand English
• Unable to have access to a phone after surgery

Study Plan

How is the study designed?

What is the study measuring?

Primary Outcome Measures

Outcome Measure	Measure Description	Time Frame
Duration of analgesia	Total duration of analgesia from peripheral femoral nerve block	From time of block placement to patient to the reported end of analgesic effect, up to 72 hours

Collaborators and Investigators

• Sponsor: University of Washington
• Investigators: Principal Investigator: Vanessa J Loland, MD, University of Washington

Study record dates

Study Major Dates

• Study Start (ACTUAL): June 15, 2020
• Primary Completion (ANTICIPATED): June 15, 2022
• Study Completion (ANTICIPATED): June 15, 2022

Study Registration Dates

• First Submitted: July 27, 2020
• First Submitted That Met QC Criteria: July 29, 2020
• First Posted (ACTUAL): July 31, 2020

Study Record Updates

• Last Update Posted (ACTUAL): September 10, 2021
• Last Update Submitted That Met QC Criteria: September 8, 2021
• Last Verified: September 1, 2021

More Information

Terms related to this study

• Additional Relevant MeSH Terms: Nervous System Diseases; Neurologic Manifestations; Neurobehavioral Manifestations; Perceptual Disorders; Agnosia
• Other Study ID Numbers: STUDY00008754

Drug and device information, study documents

• Studies a U.S. FDA-regulated drug product: No
• Studies a U.S. FDA-regulated device product: No