Impact of Aortic Regurgitation on Outcomes After Aortic Valve Replacement
Author Information
Author(s): Suad Catovic, Zoran B Popovic, Nebojsa Tasic, Dusko Nezic, Predrag Milojevic, Bosko Djukanovic, Sinisa Gradinac, Lazar Angelkov, Petar Otasevic
Primary Institution: General Hospital, Novi Pazar, Serbia
Hypothesis
Does the presence and severity of concomitant aortic regurgitation affect long-term outcomes in patients undergoing aortic valve replacement for severe aortic stenosis?
Conclusion
The presence and severity of concomitant aortic regurgitation do not influence long-term postoperative outcomes, left ventricular function, or functional capacity in patients undergoing aortic valve replacement for severe aortic stenosis.
Supporting Evidence
- Patients with aortic stenosis alone had lower left ventricular volume indices compared to those with aortic regurgitation.
- Survival probability was similar between the groups with and without aortic regurgitation.
- Diabetes mellitus and left ventricular ejection fraction less than 45% were identified as independent predictors of long-term mortality.
Takeaway
This study found that having a leaky heart valve along with a narrowed one doesn't change how well patients do after surgery for the narrowed valve.
Methodology
The study involved 110 patients who underwent aortic valve replacement, divided into two groups based on the presence of aortic regurgitation, with follow-up assessments at 12 and 104 months post-surgery.
Limitations
The study had a relatively small sample size and a long follow-up period, which may affect the generalizability of the results.
Participant Demographics
The mean age of participants was 60.5 years, with 30% female representation.
Statistical Information
P-Value
p = 0.038 for diabetes mellitus, p = 0.049 for LVEF < 45%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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