Predictability of Vascular Reactivity Relative to Sympathetic Ablation
- 1 November 1973
- journal article
- research article
- Published by American Medical Association (AMA) in Archives of Surgery
- Vol. 107 (5), 676-680
- https://doi.org/10.1001/archsurg.1973.01350230034008
Abstract
Hemodynamic measurements were used to establish predictive criteria for determining success of lumbar sympathectomy. Blood flow was measured by strain-gauge plethysmography before and after α-blockade and after sympathectomy in 40 patients. Ankle systolic pressure and ankle-brachial pressure index were determined in these and in an additional 44 cases. Results: α-blockade offers no predictive value to the effect of sympathectomy; 60% of patients had either false-positive or false-negative results. Level of ankle systolic pressure and pressure index correlated significantly with effect of sympathetic ablation. Twenty-six of 27 patients with a pressure index 0.35 responded well to lumbar sympathectomy. Conclusion: Response to sympathetic ablation depends upon adequacy of collateral circulation, which is easily assessed by the Doppler ultrasound method.Keywords
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