Cardiac Enzyme Release and One-Year Mortality After Bypass Surgery
Author Information
Author(s): N Newall, AY Oo, ND Palmer, AD Grayson, TJ Hine, RH Stables, BM Fabri, DR Ramsdale
Primary Institution: Cardiothoracic Centre, Liverpool, UK
Hypothesis
Is there a relationship between cardiac enzyme release following coronary artery bypass surgery and one-year survival?
Conclusion
Higher levels of cardiac enzyme release after bypass surgery are linked to increased one-year mortality.
Supporting Evidence
- Cardiac enzyme release three or more times the upper limit of reference range occurred in 17.4% of patients.
- Cox proportional hazards analysis showed that CE release 3–6 times ULR was associated with an adjusted HR of 2.1.
- CE release six or more times the ULR was associated with an adjusted HR of 5.0.
Takeaway
If a patient has high levels of certain heart enzymes after heart surgery, they might be more likely to have health problems a year later.
Methodology
An observational cohort study analyzing cardiac enzyme release and one-year mortality in 3,024 patients who underwent isolated CABG.
Potential Biases
Potential biases in patient selection and data collection methods.
Limitations
The study may not account for all variables influencing cardiac enzyme release and mortality.
Participant Demographics
{"age":"64.3 years","female_percentage":19.9,"comorbidities":{"diabetes":17.6,"hypertension":55.3,"previous_myocardial_infarction":44.2}}
Statistical Information
P-Value
0.002
Confidence Interval
95% CI: 1.6 to 2.6
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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