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International Angiology 2020 Dec 14

DOI: 10.23736/S0392-9590.20.04481-8

Copyright © 2020 EDIZIONI MINERVA MEDICA

lingua: Inglese

Race-based disparities in presentation and outcomes in infrainguinal bypass patients

Jeffrey J. AALBERG 1 , Zachary D. ERLICHMAN 1, Madeleine BLANK 2, Lifei GUO 3, William C. MACKEY

1 Division of Vascular Surgery, Department of Surgery, Tufts Medical Center, Boston, MA, USA; 2 Division of Plastic Surgery, Department of Surgery, Mayo Clinic, Rochester, MN, USA; 3 Division of Plastic and Reconstructive Surgery, Department of Surgery, Lahey Clinic, Burlington, MA, USA


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BACKGROUND: Racial disparities in healthcare are well documented, however their effects on surgical outcomes remain controversial. While studies have examined outcomes along the whiteblack dichotomy, Asian populations remain frequently unstudied. We use the VQI to examine disparities among white, black, and Asian patients undergoing infrainguinal bypass.
METHODS: The VQI database was queried for black, white, and Asian patients undergoing infrainguinal surgery between 2012 and 2017. Preoperative characteristics, disease severity, and perioperative characteristics were compared between the racial groups. Primary outcomes included overall mortality, time to death, long term loss of primary patency, and patency at discharge. Analyses were done using a 1:3:3 matched sample of Asian to whites to black patients.
RESULTS: 139 (0.56%) Asian, 4,222 (16.9%) black, and 20,582 (82.5%) white patients were included, of which 129 Asian patients were matched to 387 black and 387 white patients. Asian patients had more advanced disease as demonstrated by higher rates of tissue loss/acute ischemia (p <0.0001) and the highest percentage of below knee popliteal target sites (p = 0.0011). There were no differences in mortality (p = 0.6808) or long-term loss of primary patency (p = 0.4500). However, black patients had higher rates of amputation (OR = 1.68, p = 0.0224) and reoperation (OR = 2.22, p = 0.0015).
CONCLUSIONS: Asian patients presented with more advanced disease requiring more distal bypass targets. Despite these disparities in presentation, overall long-term primary patency and mortality showed no significant difference.


KEY WORDS: Peripheral arterial disease; Race factors; Infrainguinal bypass

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