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A quantitative method of determining the pneumatic ankle tourniquet setting
The Journal of Foot Surgery
|September 1, 1985
Summary
Determining the minimum effective pneumatic ankle tourniquet pressure for each patient is crucial for safe and effective foot surgery. Lower pressures are safer and better tolerated, discouraging routine use of high settings.
Area of Science:
- Podiatric surgery
- Vascular surgery
- Medical device safety
Background:
- Pneumatic ankle tourniquets are standard for hemostasis in foot surgery.
- Optimal and safe tourniquet pressure settings lack extensive literature.
- Establishing reliable pressure guidelines is essential for patient safety.
Purpose of the Study:
- To develop a method for determining safe and effective pneumatic ankle tourniquet pressure.
- To identify optimal pressure settings for maintaining hemostasis during foot surgery.
- To evaluate the safety and efficacy of derived tourniquet pressures.
Main Methods:
- A Doppler stethoscope was used to establish minimum effective tourniquet pressure.
- Study involved 54 limbs from 35 patients undergoing foot surgery.
- Pressure settings were individualized based on achieving a "bloodless field".
Main Results:
- The average pressure required for a "bloodless field" was 218.6 ± 34.6 mm Hg.
- Younger, normotensive patients required an average of 203.9 ± 22.3 mm Hg.
- Lower pressures were observed to be safer and better tolerated.
Conclusions:
- Individualized minimum effective tourniquet pressure should be determined preoperatively.
- Routine use of a maximum safe pressure of 250 mm Hg is discouraged.
- Personalized pressure settings enhance patient safety and surgical outcomes.