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Angiotensin-converting enzyme inhibitors in adults after the Mustard procedure
S J Hechter1, P M Fredriksen, P Liu
1University of Toronto Congenital Cardiac Centre for Adults and Department of Medical Imaging, The Toronto General Hospital, Ontario, Canada.
Insights
Angiotensin-converting enzyme inhibitors did not significantly impact cardiopulmonary exercise function in patients after a Mustard operation for transposition of the great arteries. However, some individuals experienced improved aerobic capacity and reduced blood pressure.
Area of Science:
- Cardiology
- Pediatric Cardiology
- Cardiovascular Surgery
Background:
- Transposition of the great arteries (TGA) is a congenital heart defect requiring surgical correction.
- The Mustard operation is a palliative surgical procedure for TGA.
- Long-term effects of TGA repair on cardiopulmonary function require further investigation.
Purpose of the Study:
- To evaluate the effect of angiotensin-converting enzyme inhibitors on cardiopulmonary exercise function in patients post-Mustard operation.
- To assess the impact of these medications on aerobic capacity and blood pressure in this population.
Main Methods:
- A study involving 14 patients who previously underwent the Mustard operation for TGA.
- Assessment of cardiopulmonary exercise function before and during treatment with angiotensin-converting enzyme inhibitors.
- Measurement of aerobic capacity and maximum systolic blood pressure.
Main Results:
- Angiotensin-converting enzyme inhibitors showed no significant effect on overall cardiopulmonary exercise function.
- A subset of patients demonstrated improvements in aerobic capacity.
- A decrease in maximum systolic blood pressure was observed in some patients.
Conclusions:
- Angiotensin-converting enzyme inhibitors may not be beneficial for improving general cardiopulmonary exercise function in patients after a Mustard operation for TGA.
- Individualized responses regarding aerobic capacity and blood pressure warrant further research.
Abstract:
Angiotensin-converting enzyme inhibitors had no significant effect on cardiopulmonary exercise function in 14 patients who had undergone a Mustard operation for transposition of the great arteries. In some patients aerobic capacity improved and maximum systolic blood pressure decreased.