Cohort Study of Postoperative Cognitive Dysfunction After Off-Pump Coronary Artery Bypass Grafting (OPCAB-POCD)
Risk of Postoperative Cognitive Dysfunction After Off-Pump Coronary Artery Bypass Grafting: A Prospective Cohort Study
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Descrizione dettagliata
This is a prospective observational cohort study of patients undergoing off-pump coronary artery bypass grafting. The study aims to investigate postoperative cognitive dysfunction and its association with perioperative clinical factors. Eligible patients will be enrolled before surgery and followed after surgery according to the study protocol.
Baseline information will be collected before surgery, including demographic characteristics, medical history, comorbidities, laboratory test results, and preoperative cognitive assessment. Intraoperative and postoperative data will also be collected, including anesthesia-related variables, surgical information, hemodynamic and monitoring parameters, postoperative clinical status, and relevant complications.
Cognitive function will be assessed before surgery and at predefined postoperative time points using standardized cognitive assessment tools, such as the Montreal Cognitive Assessment. Postoperative cognitive dysfunction will be determined according to the predefined criteria based on changes in cognitive assessment results from baseline to postoperative follow-up.
The study will describe the incidence of postoperative cognitive dysfunction after off-pump coronary artery bypass grafting and evaluate the association between perioperative factors and postoperative cognitive outcomes. The results may help improve understanding of postoperative cognitive dysfunction in this surgical population and provide evidence for perioperative risk assessment and clinical management.
Tipo di studio
Tipo di studio
Iscrizione (Stimato)
Iscrizione
Contatti e Sedi
Contatto studio
Contatto studio
- Nome: Wenjun Liu, PhD
- Numero di telefono: +86 13811258408
- Email: lwjchina@163.com
Backup dei contatti dello studio
- Nome: Xuefei Jia, phD
- Numero di telefono: +86 13121380377
- Email: jiaxuefei0320@163.com
Luoghi di studio
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Beijing Municipality
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Beijing, Beijing Municipality, Cina, 100029
- Beijing Anzhen Hospital, Capital Medical University
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Contatto:
- Wenjun Liu, PhD
- Numero di telefono: +86 13811258408
- Email: lwjchina@163.com
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Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
- Adulto
- Adulto più anziano
Accetta volontari sani
Metodo di campionamento
Popolazione di studio
Descrizione
Inclusion Criteria:
- Age 18 years or older
- Scheduled to undergo elective off-pump coronary artery bypass grafting
- American Society of Anesthesiologists physical status classification I to IV
- Able to complete preoperative cognitive assessments, including the Mini-Mental State Examination and the Montreal Cognitive Assessment
- Written informed consent provided by the patient or family member
Exclusion Criteria:
- Emergency surgery
- Pre-existing diagnosed cognitive impairment or history of psychiatric disease
- Preoperative cognitive impairment
- Severe neurological disease, such as sequelae of stroke, that may interfere with cognitive assessment
- Severe visual or hearing impairment that prevents completion of cognitive assessment
- Inability to understand Chinese or presence of language communication barriers
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
Numero di gruppi/coorti
Coorti e interventi
Gruppo / CoorteGruppo / Coorte |
Intervento / TrattamentoIntervento / Trattamento |
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Off-Pump Coronary Artery Bypass Grafting Cohort
Patients undergoing off-pump coronary artery bypass grafting who will receive preoperative cognitive assessment and postoperative follow-up for postoperative cognitive dysfunction.
Perioperative clinical information, including preoperative assessment data, intraoperative monitoring parameters, and postoperative clinical data, will be collected.
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Off-pump coronary artery bypass grafting is performed as part of routine clinical care for patients with coronary artery disease.
The study protocol does not assign participants to this procedure or to any additional intervention.
This observational study will collect perioperative clinical data and follow patients after surgery to assess postoperative cognitive dysfunction.
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
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Incidence of Postoperative Cognitive Dysfunction
Lasso di tempo: Postoperative Day 7, or 1 Day Before Hospital Discharge if Discharged Before Postoperative Day 7
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Postoperative cognitive dysfunction will be evaluated by comparing postoperative Montreal Cognitive Assessment scores with preoperative baseline scores.
Preoperative cognitive function will be assessed using the Montreal Cognitive Assessment 1 day after hospital admission.
Postoperative cognitive function will be assessed using the Montreal Cognitive Assessment on postoperative day 7 or, if the patient is discharged before postoperative day 7, 1 day before hospital discharge.
Postoperative cognitive dysfunction is defined as a decline in the postoperative Montreal Cognitive Assessment score of at least 1 standard deviation compared with the preoperative baseline score.
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Postoperative Day 7, or 1 Day Before Hospital Discharge if Discharged Before Postoperative Day 7
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Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
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Change in Montreal Cognitive Assessment Score
Lasso di tempo: Postoperative Day 7, or 1 Day Before Hospital Discharge if Discharged Before Postoperative Day 7
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The change in Montreal Cognitive Assessment score will be calculated by comparing the postoperative score with the preoperative baseline score.
Preoperative cognitive function will be assessed 1 day after hospital admission, and postoperative cognitive function will be assessed on postoperative day 7 or, if the patient is discharged before postoperative day 7, 1 day before hospital discharge.
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Postoperative Day 7, or 1 Day Before Hospital Discharge if Discharged Before Postoperative Day 7
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Length of Intensive Care Unit Stay
Lasso di tempo: through ICU discharge, an average of 3 days
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The length of intensive care unit stay will be recorded as the number of days from admission to the intensive care unit after surgery to discharge from the intensive care unit.
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through ICU discharge, an average of 3 days
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Length of Postoperative Hospital Stay
Lasso di tempo: through hospital discharge, an average of 7 days
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The length of postoperative hospital stay will be recorded as the number of days from the date of surgery to the date of hospital discharge.
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through hospital discharge, an average of 7 days
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Incidence of Postoperative Complications
Lasso di tempo: through hospital discharge, an average of 7 days
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Postoperative complications during hospitalization will be recorded, including cardiovascular, respiratory, neurological, renal, infectious, thromboembolic, and wound-related complications.
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through hospital discharge, an average of 7 days
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Duration of Postoperative Mechanical Ventilation
Lasso di tempo: through ICU stay, an average of 3 days
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The duration of postoperative mechanical ventilation will be recorded as the time from postoperative intensive care unit admission to successful discontinuation of mechanical ventilation.
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through ICU stay, an average of 3 days
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Incidence of Postoperative Nausea and Vomiting
Lasso di tempo: through hospital discharge, an average of 7 days
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Postoperative nausea and vomiting during the postoperative hospitalization period will be recorded based on medical records.
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through hospital discharge, an average of 7 days
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Incidence of In-Hospital Mortality
Lasso di tempo: through hospital discharge, an average of 7 days
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In-hospital mortality will be recorded as death from any cause during the postoperative hospitalization period.
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through hospital discharge, an average of 7 days
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Collaboratori e investigatori
Sponsor
Sponsor
Investigatori
Investigatori
- Investigatore principale: Wenjun Liu, PhD, Beijing Anzhen Hospital
Studiare le date dei record
Studia le date principali
Inizio studio (Stimato)
Inizio studio
Completamento primario (Stimato)
Completamento primario
Completamento dello studio (Stimato)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- POCD-MOCA-2026-001
- L252086 (Altro numero di sovvenzione/finanziamento: Beijing Natural Science Foundation)
- KS2025225 (Altro identificatore: Ethics Committee of Beijing Anzhen Hospital, Capital Medical University)
Piano per i dati dei singoli partecipanti (IPD)
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Descrizione del piano IPD
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