Study Results
The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.
Basic Information
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COMPLETED
320 participants
OBSERVATIONAL
2025-01-03
2025-11-18
Brief Summary
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This retrospective observational study will be conducted at a single tertiary university cardiac surgery centre. Adult patients (≥18 years) who underwent coronary artery bypass grafting, valve surgery, or combined procedures between 2020 and 2024 will be included. No experimental interventions will be applied. Preoperative EuroSCORE-II and POSPOM values will be calculated for all patients. Discrimination will be assessed using ROC and precision-recall curves with DeLong's test. Calibration will be evaluated using calibration-in-the-large, calibration slope, Hosmer-Lemeshow testing, and GiViTI calibration belts. Agreement will be analyzed using ICC, CCC, Bland-Altman plots, and Passing-Bablok and Deming regression. Subgroup analyses will be performed by age and sex.
Detailed Description
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The primary objective of this study was to investigate whether the POSPOM score has sufficient predictive power for in-hospital mortality in patients undergoing cardiac surgery. The secondary objective was to evaluate the correlation between POSPOM mortality predictions and EuroSCORE-II mortality predictions in patients undergoing cardiac surgery.
Conditions
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Study Design
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COHORT
CROSS_SECTIONAL
Study Groups
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Operation group
Patients aged 18 and over, patients who have CABG surgery, valve surgery or both, and patients with on-pump surgery in 2020-2024 will be included in the study. The sample size was calculated as 314 with an effect size of 0.2, 95% power and 0.05 error level using the G Power 3.1.9.2 package program, taking into account the study of Kaplan et al.
There is no intervention in this study.
This study is planned as a retrospective study. Only the information of the patients will be used.
Interventions
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There is no intervention in this study.
This study is planned as a retrospective study. Only the information of the patients will be used.
Eligibility Criteria
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Inclusion Criteria
Exclusion Criteria
18 Years
100 Years
ALL
No
Sponsors
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Istanbul University - Cerrahpasa
OTHER
Responsible Party
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Kerem Erkalp, MD, Prof
professor
Principal Investigators
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Kerem Erkalp, Dr
Role: PRINCIPAL_INVESTIGATOR
Professor
Locations
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Istanbul University- Cerrahpasa
Istanbul, , Turkey (Türkiye)
Countries
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Other Identifiers
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017
Identifier Type: -
Identifier Source: org_study_id