The COVID-19 pandemic has resulted in persistent health problems in a significantproportion of individuals after recovery from the acute infection. These long-termmanifestations, commonly referred to as post-COVID condition or long COVID, may involverespiratory, cardiovascular, neurological, psychological, and general health domains.Understanding these sequelae is particularly important in patients undergoingpreoperative anesthesia evaluation, as residual symptoms may influence perioperative riskassessment and clinical decision-making.This cross-sectional observational study aims to evaluate the long-term clinical andhealth effects of previous COVID-19 infection in adult patients presenting to thepreoperative anesthesia clinic. Patients aged 18 years and older who report a history ofconfirmed COVID-19 infection will be included. Clinical data related to the acuteinfection period (disease severity, hospitalization, intensive care unit admission,oxygen therapy, and radiological findings) will be retrospectively obtained from hospitalrecords. At the time of preoperative assessment, participants will complete a structuredpost-COVID clinical questionnaire to evaluate persistent symptoms across multiple organsystems.The study seeks to determine the prevalence and characteristics of long-term post-COVIDsymptoms and to explore potential associations between acute disease severity and ongoinghealth complaints. No additional medical intervention will be performed as part of thisresearch.