Prevalence Of Nasal MRSA Colonization And Association With Post-operative Infections In Patients Undergoing Vascular Surgery
Kevin Mangum, MD, PhD, Tiffany Bellomo, Arora Akul, Kiran Goyal, Evelyn Londono, Sonali Reddy, Chandu Vemuri, MD.
University of Michigan, Ann Arbor, MI, USA.
Prevalence of Nasal MRSA Colonization and Association with Post-Operative infections in Patients Undergoing Vascular Surgery
Kevin Mangum, Tiffany Bellomo, Arora Akul, Kiran Goyal, Evelyn Londono, Sonali Reddy, Chandu Vemuri.
OBJECTIVE – To determine the rate of MRSA colonization in a general group of vascular surgery patients and its potential impact on post-operative outcomes.
METHODS – Retrospective chart review was performed in 98 patients who underwent vascular surgery from 2019-2020. Patients who had been tested for nasal MRSA within a month prior to their operation and those undergoing vascular surgical intervention were included in the study. Patients undergoing diagnostic angiography without intervention were excluded. Chi-squared and student’s t-test were used to analyze for statistical significance.
RESULTS – Only 1 patient (1.0%) had a positive nasal MRSA result, and this patient did not have a post-operative infection. In a stratified analysis, post-op infections were more likely to occur in open aortic operations. Post-operative infections were associated with length of hospital stay (p<0.001). However, there was no statistically significant association between post-operative infection rate and mortality, type of vascular surgery, presence of prior vascular graft, type of vascular prosthetic graft, history of prior vascular surgery, or history of smoking.
CONCLUSIONS – Our findings indicate that there is a low prevalence of MRSA colonization in vascular surgery patients and routine screening may not be necessary. Future studies should randomly screen large populations of patients to better assess if there is a relationship between MRSA status and post-operative infection-related outcomes.
Back to 2021 ePosters