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
Studieoversigt
Status
Status
Betingelser
Betingelser
Intervention / Behandling
Intervention / Behandling
Detaljeret beskrivelse
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.
Undersøgelsestype
Undersøgelsestype
Tilmelding (Anslået)
Tilmelding
Kontakter og lokationer
Studiekontakt
Studiekontakt
- Navn: Wenjun Liu, PhD
- Telefonnummer: +86 13811258408
- E-mail: lwjchina@163.com
Undersøgelse Kontakt Backup
- Navn: Xuefei Jia, phD
- Telefonnummer: +86 13121380377
- E-mail: jiaxuefei0320@163.com
Studiesteder
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Beijing Municipality
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Beijing, Beijing Municipality, Kina, 100029
- Beijing Anzhen Hospital, Capital Medical University
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Kontakt:
- Wenjun Liu, PhD
- Telefonnummer: +86 13811258408
- E-mail: lwjchina@163.com
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Deltagelseskriterier
Berettigelseskriterier
Berettigelseskriterier
Aldre berettiget til at studere
- Voksen
- Ældre voksen
Tager imod sunde frivillige
Prøveudtagningsmetode
Studiebefolkning
Beskrivelse
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
Studieplan
Hvordan er undersøgelsen tilrettelagt?
Design detaljer
Antal grupper/kohorter
Kohorter og interventioner
Gruppe / kohorteGruppe / kohorte |
Intervention / BehandlingIntervention / Behandling |
|---|---|
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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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Hvad måler undersøgelsen?
Primære resultatmål
Primære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Incidence of Postoperative Cognitive Dysfunction
Tidsramme: 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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Sekundære resultatmål
Sekundære resultatmål
Resultatmål |
Foranstaltningsbeskrivelse |
Tidsramme |
|---|---|---|
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Change in Montreal Cognitive Assessment Score
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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
Tidsramme: 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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Samarbejdspartnere og efterforskere
Sponsor
Sponsor
Efterforskere
Efterforskere
- Ledende efterforsker: Wenjun Liu, PhD, Beijing Anzhen Hospital
Datoer for undersøgelser
Studer store datoer
Studiestart (Anslået)
Studiestart
Primær færdiggørelse (Anslået)
Primær færdiggørelse
Studieafslutning (Anslået)
Studieafslutning
Datoer for studieregistrering
Først indsendt
Først indsendt
Først indsendt, der opfyldte QC-kriterier
Først indsendt, der opfyldte QC-kriterier
Først opslået (Faktiske)
Først opslået
Opdateringer af undersøgelsesjournaler
Sidste opdatering sendt (Faktiske)
Sidste opdatering sendt
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidste opdatering indsendt, der opfyldte kvalitetskontrolkriterier
Sidst verificeret
Sidst verificeret
Mere information
Begreber relateret til denne undersøgelse
Nøgleord
Yderligere relevante MeSH-vilkår
Andre undersøgelses-id-numre
Andre undersøgelses-id-numre
- POCD-MOCA-2026-001
- L252086 (Andet bevillings-/finansieringsnummer: Beijing Natural Science Foundation)
- KS2025225 (Anden identifikator: Ethics Committee of Beijing Anzhen Hospital, Capital Medical University)
Plan for individuelle deltagerdata (IPD)
Planlægger du at dele individuelle deltagerdata (IPD)?
IPD-planbeskrivelse
Lægemiddel- og udstyrsoplysninger, undersøgelsesdokumenter
Studerer et amerikansk FDA-reguleret lægemiddelprodukt
Studerer et amerikansk FDA-reguleret enhedsprodukt
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