GDF15 as a Biomarker in Cardiac Surgery
Author Information
Author(s): Ferreira Ricardo, Velho Tiago R., Pereira Rafael Maniés, Pedroso Dora, Draiblate Beatriz, Constantino Susana, Nobre Ângelo, Almeida Ana G., Moita Luís F., Pinto Fausto
Primary Institution: Hospital de Santa Maria, Unidade Local de Saúde de Santa Maria, Lisbon, Portugal
Hypothesis
This study aims to characterize the postoperative profile of GDF15 in patients undergoing isolated surgical aortic valve replacement, evaluating its association with short-term outcomes.
Conclusion
GDF15 may be a valuable biomarker for risk stratification and guiding therapeutic decisions in cardiac surgery patients.
Supporting Evidence
- GDF15 levels significantly increased after surgery, peaking at 6 hours.
- Patients who developed postoperative acute kidney injury had significantly higher GDF15 levels.
- Higher GDF15 levels were associated with prolonged hemodynamic support and increased ICU length of stay.
- GDF15 levels correlated with postoperative SOFA scores at 24 hours after surgery.
Takeaway
GDF15 is a substance in the body that can help doctors understand how well patients are doing after heart surgery, especially if they have problems like kidney injury.
Methodology
This was a prospective, observational, single-center study where serum samples were collected from patients before and after surgery to measure GDF15 levels.
Potential Biases
Potential biases may arise from the observational nature of the study and the specific patient population included.
Limitations
The study was limited to a single center and may not be generalizable to all cardiac surgery patients.
Participant Demographics
The median age of participants was 73 years, with 57.1% male and common comorbidities including hypertension (82.5%) and diabetes mellitus (42.9%).
Statistical Information
P-Value
p<0.05
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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