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

Status

UNKNOWN

Phases

Unknown

Study type

Observational

Source

ClinicalTrials.gov

Registry ID

NCT04495413

Enrollment

100

Registered

2020-07-31

Start date

2020-06-15

Completion date

2022-06-15

Last updated

2021-09-10

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Analgesia

Brief summary

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.

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.

Interventions

None listed

Study design

Observational model

COHORT

Time perspective

PROSPECTIVE

Eligibility

Sex/Gender

ALL

Age

18 Years to No maximum

Healthy volunteers

Yes

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

Design outcomes

Primary

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

Countries

United States

Contacts

Primary ContactAdam J Claessens, DO

claessen@uw.edu206-291-7445

Outcome results