Outcomes of open and endovascular infra-inguinal revascularization are poor in young patients with atherosclerotic peripheral artery disease but do not differ between genders.

ABSTRACT

OBJECTIVES: The effect of gender on the outcomes of revascularization procedures in young patients with premature atherosclerotic peripheral arterial disease (PAD) is not known. The objective of this study was to compare short-term and long-term outcomes between young males and females undergoing infra-inguinal revascularization procedures. METHODS: We examined postoperative outcomes of male and female PAD patients under the age of 55 who underwent infra-inguinal revascularization procedures at a single tertiary institution from 2011 to 2019. Primary outcomes included 30-day morbidity, patency of the revascularization procedures, and major adverse limb events (MALE). Secondary outcomes included survival, amputation rate, reintervention rate, improvement of ankle-brachial index (ABI), and number of reinterventions. RESULTS: Eighty-one infra-inguinal revascularization procedures (46 endovascular and 35 open procedures) were reviewed including 45 procedures in 37 males and 36 procedures in 31 females. Fifty-three (65.4%) of the procedures were performed in patients with chronic limb-threatening ischemia symptoms. The rest were treated for life-disabling claudication. The female patients were younger, had higher body mass index, and were more likely to have diabetes, hyperlipidemia, or chronic obstructive pulmonary disease in comparison to males. Thirty-day major adverse cardiovascular event was 0.0% and MALE was 16.0%. Mean follow-up was 806.2 days. At 1 year, primary patency was 34.4 ± 6.2%, primary assisted patency was 52.7 ± 6.5%, secondary patency was 61.8 ± 6.3%, and MALE-free rate was 47.0 ± 6.4%. For secondary outcomes at 1 year, amputation-free rate was 92.5 ± 3.2%, reintervention-free rate was 50.2 ± 6.4%, and survival was 96.2 ± 2.6%. By the end of the study, overall mortality rate was 14.8% and major amputation rate was 13.6%. No major differences were observed between males and females among these outcomes. A smaller improvement in ABI after revascularization was noted in females compared to males (female 0.2 ± 0.2 vs male 0.4 ± 0.2, p = .04). Among patients who required reintervention, females required a higher number of reinterventions than males (female 1.7 ± 2.5 vs male 0.8 ± 1.1, p = .03). CONCLUSIONS: There were no significant differences in short-term and long-term outcomes between males and females under the age of 55 after infra-inguinal revascularization. Poor patency, high MALE rate, and high mid-term mortality, and amputation rates after revascularization in young PAD patients highlight the need for improved strategies to treat premature PAD.