Timing of Hepatectomy Following the Omicron Variant Infection for Vaccinated-Patients: A Retrospective Cohort Study

Many previous studies suggested that severe acute respira-tory syndrome coronavirus 2(SARS-CoV-2)infection elevated the risk of morbidity and 90-day mortality after operation,especially pulmonary complications[1-7].Uncertainty about perioperative safety puts off the progress of elective surgery[8].The Omicron variant has recently become the dominant variant causing preva-lence in several countries[9].Although a high rate of patients with Omicron presented asymptomatic status[10],it is still un-clear whether Omicron infection would raise the risk of postoper-ative complications.