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Updated: Jun 1, 2026
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Fully Endoscopic Mitral Valve Repair with Percutaneous Cannulation of Groin Vessels
Published on: May 26, 2023
Does the mitral valve recoil after percutaneous balloon valvotomy?
Ganesan Karthikeyan1, Rakesh Yadav1, Rajiv Narang1
1Department of Cardiology, All India Institute of Medical Sciences, New Delhi, India.
Summary
Passive stretching does not significantly impact mitral valve opening after percutaneous transvenous mitral commissurotomy (PTMC). Mitral valve area (MVA) increased over time, suggesting other factors contribute to improved valve function post-procedure.
Area of Science:
- Cardiology
- Interventional Cardiology
- Cardiac Surgery
Background:
- Percutaneous transvenous mitral commissurotomy (PTMC) is a procedure to treat mitral stenosis.
- The role of passive stretching in mitral valve opening post-PTMC remains unclear.
Purpose of the Study:
- To investigate the significance of passive mitral valve stretching in valve opening after PTMC.
- To determine if acute reduction in valve area occurs due to recoil of stretched valve structures.
Main Methods:
- Prospective observational study of nine patients undergoing PTMC.
- Mitral valve area (MVA) measured before, immediately after, and at 10 and 30 minutes post-procedure.
- Pulmonary artery wedge (PAW) pressures and transmitral gradients were also monitored.
Main Results:
- No acute reduction in MVA was observed immediately after successful PTMC.
- A significant increase in MVA was noted at 30 minutes post-procedure (1.8±0.4 to 2.0±0.4 cm²; P=.048).
- This increase correlated with falling PAW pressures and transmitral gradients.
Conclusions:
- Passive stretching of the mitral valve apparatus is not a major factor in valve opening post-PTMC.
- The findings are particularly relevant for young patients with favorable valve morphology.
- Continued improvement in MVA is likely influenced by hemodynamic changes post-procedure.
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