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Is perioperative COVID-19 really associated with worse surgical outcomes among vaccinated patients?
Updates in Surgery 2024 March 16
INTRODUCTION: During the surge of the SARS-CoV-2 pandemic, studies revealed high complication and morbidity rates following surgical procedures in COVID-19 positive patients. Anesthetic and surgical societies swiftly developed strategies to mitigate these risks, including a recommended postponement of elective surgeries for a minimum of 7 weeks post-COVID infection. Nowadays, with a predominantly vaccinated population, it has become crucial to discern the influencing factors on post-COVID morbidity and mortality and a reevaluation of the existing recommendations pertaining to elective surgery.
METHODS: A single-center case-control study was conducted, including patients who underwent surgery between November 2021 and March 2022 and met the inclusion criteria. Eighty COVID-19 positive patients were matched 1:1 with 80 controls, each undergoing an identical intervention within a 2-week time frame. The primary outcome was 30-day postoperative mortality and secondary outcome postoperative complications (respiratory and thromboembolic).
RESULTS: At the time of surgery, 88.8% of patients in the case group and 92.5% in the control group had received at least one vaccine dose. Mortality and morbidity did not show a significant difference when comparing the case and control groups (7.5% vs 6.2%, p = 0.755; 11.3% vs 8.9%, p = 0.541 respectively). In the COVID-positive group, mortality was significantly associated with age over 70 years, ASA score over III, RCRI over 1, emergency procedures, and absence of thromboembolic prophylaxis.
CONCLUSIONS: In contrast to previously reported findings, we did not observe an increased morbi-mortality in patients with perioperative COVID-19 infection. It may not be necessary to delay elective interventions, except in cases with a high-risk.
METHODS: A single-center case-control study was conducted, including patients who underwent surgery between November 2021 and March 2022 and met the inclusion criteria. Eighty COVID-19 positive patients were matched 1:1 with 80 controls, each undergoing an identical intervention within a 2-week time frame. The primary outcome was 30-day postoperative mortality and secondary outcome postoperative complications (respiratory and thromboembolic).
RESULTS: At the time of surgery, 88.8% of patients in the case group and 92.5% in the control group had received at least one vaccine dose. Mortality and morbidity did not show a significant difference when comparing the case and control groups (7.5% vs 6.2%, p = 0.755; 11.3% vs 8.9%, p = 0.541 respectively). In the COVID-positive group, mortality was significantly associated with age over 70 years, ASA score over III, RCRI over 1, emergency procedures, and absence of thromboembolic prophylaxis.
CONCLUSIONS: In contrast to previously reported findings, we did not observe an increased morbi-mortality in patients with perioperative COVID-19 infection. It may not be necessary to delay elective interventions, except in cases with a high-risk.
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