Key result
Inflation of a thigh tourniquet on the non-operated leg did not significantly affect systolic blood pressure or the requirement for ephedrine compared to controls.
Why the study?
Does a thigh tourniquet inflated on the non-operated leg prevent hypotension in patients undergoing total hip replacement under spinal anaesthesia?
RCT (n=40)
randomly allocated
Does a thigh tourniquet inflated on the non-operated leg prevent hypotension in patients undergoing total hip replacement under spinal anaesthesia?
Applying a thigh tourniquet to the non-operated leg does not prevent hypotension during spinal anesthesia for total hip replacement.
Tourniquet on the non-operated leg should not be used to prevent spinal hypotension in hip replacement; confirms lack of benefit in this RCT.
Fourty patients undergoing total hip replacement under spinal anaesthesia were allocated randomly to have a thigh tourniquet inflated after exanguination of the leg not being operated on or to act as controls. Significant hypotension (systolic arterial pressure < 70 mm Hg) was treated with i.v. ephedrine in 6 mg boluses. There was no significant difference between the two groups with respect to systolic blood pressure or requirement of ephedrine, during the hour that the tourniquet was applied or the period immediately after the removal of the tourniquet.
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Lloyd et al. (1995) conducted an RCT in total hip replacement under spinal anaesthesia (n=40). thigh tourniquet inflation on the non-operated leg vs. control was evaluated on systolic blood pressure or requirement of ephedrine. Inflation of a thigh tourniquet on the non-operated leg did not significantly affect systolic blood pressure or the requirement for ephedrine compared to controls.
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