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J Korean Surg Soc. 2013 Mar;84(3):178-184. English. Original Article. https://doi.org/10.4174/jkss.2013.84.3.178
Kim TY , Yun WS , Park K .
Division of Vascular/Endovascular Surgery, Department of Surgery, Daegu Catholic University Medical Center, Catholic University of Daegu School of Medicine, Daegu, Korea. wsyun@me.com
Abstract

PURPOSE: To identify the risk factors of major adverse cardiac event (MACE) in patients with chronic atherosclerotic lower extremity ischemia (CALEI) undergoing revascularization without noninvasive stress testing (NIST). METHODS: From January 2007 to January 2012, patients with CALEI who underwent revascularization were retrospectively reviewed. Emergent operations, revision procedures for previous surgery, or patients with active cardiac conditions were excluded. NIST was not performed for patients without active cardiac conditions. Cardiac risk was categorized into low, intermediate and high risk, according to the Lee's revised cardiac risk index. MACE was defined as acute myocardial infarction or any cardiac death within 30 days after surgery. RESULTS: A total of 459 patients underwent elective lower extremity revascularization procedures (240 open surgeries, 128 endovascular procedures, and 91 hybrid surgeries). The treated lesions comprised of 18% aorto-iliac, 58% infrainguinal, and 24% combined lesions. With regard to cardiac risk, low-, intermediate- and high risks were 67%, 32% and 2%, respectively. MACE was developed in 7 patients (2%). High or intermediate risk group by the Lee's index was related to postoperative MACE. Subgroup analysis for open surgery or hybrid surgery group identified female gender as an independent risk factor of MACE (P = 0.049; odds ratio, 5.168; confidence interval, 1.011 to 26.423). CONCLUSION: The Lee's index was a useful predictor of MACE. MACE is more common in female patients than male patients after open or hybrid surgery. Routine preoperative NIST is not suggested for all patients undergoing revascularization for CALEI, especially for those in the low risk group.

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