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Lower Tourniquet Pressure Study

A Prospective, Double-blinded, Randomized Controlled Trial Evaluating Effectiveness of Lower Tourniquet Pressures in Hand Surgery

Status
Completed
Phases
NA
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT04994405
Enrollment
93
Registered
2021-08-06
Start date
2022-07-15
Completion date
2024-09-27
Last updated
2025-04-01

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

Conditions

Hand Injuries, Upper Extremity Injury

Brief summary

This study design is a prospective, double-blinded, randomized controlled trial evaluating the quality of bloodless surgical field with lower tourniquet pressures based on systolic blood pressure (SBP) compared to standard tourniquet pressures. A secondary goal is to evaluate the effect of lower tourniquet pressures on post-operative tourniquet site pain. The rationale behind the study is to provide evidence-based guidelines on tourniquet use to continue providing quality surgical care while minimizing pain and potential harm to patients.

Detailed description

Patients undergoing hand and upper extremity surgery at our institution will be offered participation in this study. Consenting patients will be randomized in a double-blinded fashion to either standard tourniquet pressure of 250 mmHg or lower tourniquet pressures based on SBP. Demographic data will be recorded as well as details of the surgical procedure. Post-operatively, the operating surgeon will complete a questionnaire about the quality of bloodless surgical field and the patient will complete a questionnaire about post-operative pain. This study will enroll approximately 150 patients. Statistical analysis will be completed to analyze the effectiveness of the intervention.

Interventions

PROCEDURETourniquet Pressure

The procedural intervention will be inflation of a pneumatic tourniquet to a lower than standard pressure as determined by the patient's SBP in hand and upper extremity surgery. The control will be inflation of a pneumatic tourniquet at a standard pressure of 250 mmHg in hand and upper extremity surgery. The tourniquet used will be the standard tourniquet used for hand and upper extremity surgery at our institutions - a tourniquet 18 inches in length and 3 inches in width manufactured by Stryker (Kalamazoo, MI) used in conjunction with a protective sleeve matched to the size of the tourniquet cuff which is provided by the manufacturer. Both pieces are supplied in a sterile packaging. No other tourniquets will be used.

Sponsors

NYU Langone Health
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
PREVENTION
Masking
DOUBLE (Subject, Investigator)

Eligibility

Sex/Gender
ALL
Age
18 Years to 100 Years
Healthy volunteers
Yes

Inclusion criteria

* Adult patient age 18 or older * Undergoing hand or upper extremity procedure * Tourniquet is used for procedure * Willingness and ability to consent

Exclusion criteria

* Individuals with procedures that are over 120 minutes in length

Design outcomes

Primary

MeasureTime frameDescription
Quality of the bloodless surgical field provided by lower tourniquet pressuresImmediately After surgery in recovery room timeSurgeon-completed questionnaire rating the quality of the bloodless operative field using a 4-point Likert scale ranging from 1 (excellent) meaning no blood in the surgical field to 4 (poor) meaning blood in the surgical field obscures view throughout the procedure. This survey will be completed immediately post-operatively.

Secondary

MeasureTime frameDescription
Effect of lower tourniquet pressures based on SBP on post-operative tourniquet site painImmediately After surgery in recovery room timePatient-completed questionnaire rating their tourniquet site pain post-operatively using the Visual Analogue Scale (VAS) ranging from 0 meaning no pain to 10 meaning worst possible pain. This survey will be completed post-operatively in the recovery unit.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026