Type 2 diabetes mellitus (T2DM) represents a major risk factor for peripheral artery disease (PAD). We aimed to evaluate the impact of T2DM on lesion localization and complexity, clinical presentation by Rutherford categories, and limb outcomes in elderly patients with symptomatic PAD undergoing endovascular revascularization. Five hundred consecutive patients with symptomatic infra-inguinal PAD who underwent rotational atherectomy-assisted endovascular revascularization were included. PAD clinical presentation and lesion localization were recorded. The primary endpoints were clinically driven target lesion revascularization (CD-TLR) and major amputation rates during follow-up. Overall, 245/500 (49.0%) patients had T2DM, whereas 179 (35.8%) presented with lifestyle limiting claudication and 321 (64.2%) with critical limb-threatening ischemia (CLTI). Median age was 78.0 (IQR = 70.0-84.0) years, and 201 (40.2%) patients were female. The presence of T2DM was significantly more frequent in patients with CLTI vs. those with claudication (58.6 vs. 31.8%; < 0.001). Furthermore, the percentage of patients with below-the-knee (BTK) lesions was significantly higher in patients with vs. without T2DM (40.7 vs. 27.5%, = 0.0002). During median follow-up of 21.9 (IQR = 12.8-28.8) months, CD-TLR rates were similar in patients with vs. without T2DM (HR = 1.2, 95%CI = 0.8-2.0, = 0.39). However, patients with T2DM had a ~5.5-fold increased risk for major above-the-ankle amputation (HR = 5.5, 95%CI = 1.6-19.0, = 0.007). After adjustment for age, gender, lesion complexity, and calcification, T2DM remained predictive for major amputation ( = 0.04). T2DM is more frequently associated with CLTI, BTK-PAD, and amputations despite successful endovascular revascularization. More stringent surveillance of patients with PAD and T2DM is warranted to prevent atherosclerosis-related complications.
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| http://dx.doi.org/10.3390/jcm13216385 | DOI Listing |
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