AbstractAimPatent foramen ovale (PFO) is a common atrial septal defect that is largely asymptomatic and often undiagnosed. The impact of aPFOin patients undergoing liver transplantation (LT) is unknown.ObjectiveAssess the impact ofPFOand physiologic intrapulmonary shunt (IPS) on the perioperative outcomes of patients who underwentLT.MethodsWe performed a retrospective, intention‐to‐treat analysis of patients withPFOand controls withoutPFOwho underwentLTat Mayo Clinic in Florida between 2008 and 2013. Patients with physiologicIPSwere also analyzed. The cohorts were compared for baseline characteristics, length of stay in the intensive care unit (ICU), postoperative oxygen requirements, 30‐d cerebrovascular accidents, and mortality.ResultsOf the 935 patients who underwentLT, 10.4% had provenPFOby pre‐LTechocardiogram. Control patients (n = 101) were statistically older thanPFOandIPS(n = 56) patients, but similar in sex,BMI, Model for End‐stage Liver Disease score, American Society of Anesthesiologist score, and left ventricular ejection fraction.PFOandIPSpatients had similar length of stay in theICU, mechanical ventilation times, post‐LToxygen requirements, and 30‐d mortality compared to controls. Subgroup analysis showed similar outcomes for largePFOandIPSpatients to controls.ConclusionsThe presence ofPFOdid not have a negative impact on perioperativeLToutcomes.