Predicting Heart Recovery After Surgery Using MRI
Author Information
Author(s): Krittayaphong Rungroj, Laksanabunsong Pansak, Maneesai Adisak, Saiviroonporn Pairash, Udompunturak Suthipol, Chaithiraphan Vithaya
Primary Institution: Mahidol University, Bangkok, Thailand
Hypothesis
Can late gadolinium enhancement and diastolic wall thickness predict recovery of left ventricular function after coronary artery bypass surgery?
Conclusion
Late gadolinium enhancement and end-diastolic wall thickness are independent predictors for functional recovery after heart surgery, with LGE being the more significant factor.
Supporting Evidence
- LGE area was the most important predictor of wall motion improvement.
- Adding LGE information reduced false predictions from EDWT alone.
- 39.2% of segments with initial wall motion abnormalities showed improvement.
Takeaway
Doctors can use special MRI scans to see how well the heart will recover after surgery. One type of scan is better at predicting recovery than another.
Methodology
Patients with coronary artery disease and low left ventricular ejection fraction were assessed using cine CMR and late gadolinium enhancement before and after surgery.
Limitations
The study only followed patients for 4 months after surgery, and the sample size was relatively small.
Participant Demographics
46 men and 4 women, average age 61 years.
Statistical Information
P-Value
p<0.001
Confidence Interval
95% CI 0.91–0.93
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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