An observational study in Post-COVID Condition, Long COVID and Sequelae of COVID-19, sponsored by Elazıg Fethi Sekin Sehir Hastanesi. Completed at 1 site in Turkey (Türkiye). Open to participants aged 18 Years and older. Per ClinicalTrials.gov, last updated 2026-09-11.
Sponsored by Elazıg Fethi Sekin Sehir Hastanesi · Observational
The Coronavirus Disease 2019 (COVID-19) pandemic has resulted in persistent health problems in a significant proportion of individuals after recovery from the acute infection. These long-term manifestations, commonly referred to as post-COVID-19 condition or long COVID, may involve respiratory, cardiovascular, neurological, psychological, and general health domains. Understanding these sequelae is particularly important in patients undergoing preoperative anesthesia evaluation, as residual symptoms may influence perioperative risk assessment and clinical decision-making. This cross-sectional observational study aims to evaluate the long-term clinical and health effects of previous COVID-19 infection in adult patients presenting to the preoperative anesthesia clinic. Patients aged 18 years and older who report a history of confirmed COVID-19 infection will be included. Clinical data related to the acute infection period (disease severity, hospitalization, intensive care unit (ICU) admission, oxygen therapy, and radiological findings) will be retrospectively obtained from hospital records. At the time of preoperative assessment, participants will complete a structured post-COVID-19 clinical questionnaire to evaluate persistent symptoms across multiple organ systems. The study seeks to determine the prevalence and characteristics of long-term post-COVID-19 symptoms and to explore potential associations between acute disease severity and ongoing health complaints. No additional medical intervention will be performed as part of this research.
520 studies on the registry are indexed under Post-Acute COVID-19 Syndrome; 186 are open to participants now.
This study's enrollment of 400 is above the median of 160 across 141 observational studies indexed under Post-Acute COVID-19 Syndrome.
Browse Post-Acute COVID-19 Syndrome studies →Elazıg Fethi Sekin Sehir Hastanesi is the lead sponsor of 29 studies on the registry; 7 are open to participants now.
Counted across the registry records on this site, refreshed daily.
Adult patients aged 18 years and older presenting to the preoperative anesthesia clinic of Elazığ Fethi Sekin City Hospital who report a previous laboratory-confirmed COVID-19 infection. The study population consists of surgical candidates undergoing routine preoperative evaluation. Clinical information regarding the acute COVID-19 period will be obtained retrospectively from hospital records, and persistent post-COVID symptoms will be assessed at the time of preoperative evaluation using a structured questionnaire.
Presentation to the preoperative anesthesia clinic
Self-reported history of laboratory-confirmed COVID-19 infection
Ability to provide informed consent
Willingness to complete the post-COVID clinical questionnaire
Exclusion Criteria:
No history of COVID-19 infection
Refusal to participate or incomplete questionnaire
Cognitive impairment or communication difficulties preventing reliable data collection
Adult patients (≥18 years) presenting to the preoperative anesthesia clinic who report a history of laboratory-confirmed COVID-19 infection. Clinical data related to the acute infection period will be retrospectively obtained from hospital records, and persistent post-COVID symptoms will be assessed using a structured questionnaire at the time of preoperative evaluation.
Other: Post-COVID Clinical Assessment
Structured post-COVID symptom questionnaire and retrospective clinical data review performed at the time of preoperative anesthesia evaluation. No therapeutic intervention is applied.
Prevalence of Persistent Post-COVID Symptoms
Assessment of respiratory, cardiovascular, neurological, psychological, and general health symptoms using a structured post-COVID clinical questionnaire administered during preoperative anesthesia evaluation.
Time frame: At the time of preoperative anesthesia assessment
This study is completed, as verified in Sep 2026. You cannot join it, but the record below documents what was studied.
Get an email when the registry record changes — status, dates, results — or when someone posts here.
Sign in to followQuestions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.
Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.
Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.
Elazıg Fethi Sekin Sehir Hastanesi