{"doi":"10.1093/bjs/znad436","title":"Characterizing the impact of SARS-CoV-2 reinfection on surgical outcomes","abstract":"The COVID-19 pandemic has changed the delivery of surgical care.Early in the pandemic, an association between SARS-CoV-2 infection and adverse postoperative outcomes prompted the implementation of risk mitigation strategies, including routine asymptomatic COVID-19 testing and the postponement of surgical procedures 1-3 .In May 2023, the WHO declared an end to the COVID-19 global public health emergency; however, the disease's implications with regard to perioperative care persist.As novel SARS-CoV-2 variants emerge, understanding the influence of reinfection on postoperative outcomes is an important consideration.Although SARS-CoV-2 reinfection is thought to produce a milder form of COVID-19, it can potentially increase the risk of developing long COVID, which suggests that reinfection is related to persistent physiological changes that can lead to multiorgan or autoimmune symptoms 4 .The association between COVID-19 severity and surgical outcomes has been previously established 5 , but the complex immunological and physiological implications of SARS-CoV-2 reinfection warrant further study.This was a retrospective cohort study from January 2020 to June 2023 that used the National COVID Cohort Collaborative (N3C) Data Enclave.The study consisted of adult patients who underwent major inpatient surgery using previously defined criteria 5 .Patients with COVID-19 were identified by a positive laboratory measurement (PCR or antigen) or a positive COVID-19 diagnosis (ICD-10-CM code U07.1) before surgery.Reinfection was defined as subsequent SARS-CoV-2 positivity occurring more than 90 days after the initial COVID-19 diagnosis.SNOMED codes from the Observational Health Data Science and Informatics ATLAS tool were used to identify elective inpatient procedures, co-morbidities, and complications (Tables S1-S3).Procedures that were excluded were natural orifice or endoscopic, percutaneous, non-open diagnostic, and transplant procedures.The primary outcome of the study was 30-day composite major morbidity or mortality, which included pneumonia, myocardial infarction, pulmonary embolism, respiratory failure, sepsis, and death.Multivariable logistic regression models assessing 30-day major morbidity or mortality https://doi.org/10.","journal":"British journal of surgery","year":2023,"id":415540,"datarank":0.0,"base_score":0.0,"endowment":0.0,"self_citation_contribution":0.0,"citation_network_contribution":0.0,"self_endowment_contribution":0.0,"citer_contribution":0.0,"corpus_percentile":null,"corpus_rank":null,"citation_count":0,"citer_count":0,"citers_with_citation_signal":0,"citers_with_endowment":0,"datacite_reuse_total":0,"is_dataset":false,"is_dataset_confidence":0.9547,"is_data_producer":false,"deposit_databanks":null,"is_oa":true,"file_count":0,"downloads":0,"has_version_chain":false,"published_date":"2023-01-01","fair_score":null,"fair_percentile":null,"algorithm_id":"datarank_citation_only_1hop_v6","ranking_scope":"data_only","authors":[{"id":1197086,"name":"Tahseen Shaik","orcid":null,"position":1,"is_corresponding":false},{"id":1034683,"name":"Bethany Canales","orcid":"0000-0002-1115-9952","position":2,"is_corresponding":false},{"id":1080040,"name":"Xin Yang","orcid":"0000-0003-0085-7859","position":3,"is_corresponding":false},{"id":409239,"name":"Anikó Szabó","orcid":"0000-0002-8129-0614","position":4,"is_corresponding":false},{"id":1080042,"name":"Kathryn K. 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