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KMID : 0356919930260061178
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Korean Journal of Anesthesiology
1993 Volume.26 No. 6 p.1178 ~ p.1182
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Changes in Arterial Blood Gas Tensions and Serum Electroluytes after Release of Pneumatic tourmiquest during Spinal Anesthesia
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Honikel, K. O.
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Abstract
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Tourniquets are often used for surgery on the extremities to provide a bloodless surgical field. However, inflation of tourniquet can cause hypertension, and deflation can cause hypotension. Decrease in arterial pH and PaO2 and increase in PaCO2
immediately following tourniquet deflation have been documented.
In 25 patients for the operation on the lower extremity with spinal anesthesia, we examined the changes of arterial blood pressure, heart rate, arteria blood gases (pH, PO2, PCO2 HCO3), and serum electrolytes (Na+, K+, CI)just before inflation of
tourniquet and at 5 minutes after deflation of it.
@ES The results were as follows;
@EN 1) Systolic blood pressure decreased by 58 mmHg (P<0.05), and diastolic blood pressure decresed by 3.8 mmHg after release of tourniquet. But heart rate did not change, significantly.
2) PaCO2 increased by 2.4 mmHg after deflation of tourniquet, but it was not significant statistically. Arterial pH, PaO2 and concentration of bicarbonate all showed insignificant changes.
3) All of serum electrolytes showed too small and insignificant changes.
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