Background
Mitral valve prolapse (MVP) is relatively common condition and while generally benign
a small subset of patient suffers from malignant ventricular arrhythmias (MVA) and
sudden cardiac death (SCD).
Method and Material
We report three cases of mitral valve prolapse, mitral regurgitation and malignant
ventricular arrhythmias refractory to medical therapy, who had surgical cryoablation
at the time of surgery on the mitral valve.
Results
During a follow-up period ranging from 3 to 11 years all three patients have remained
free of ventricular arrhythmias and cryoablation lesions targeting the base of the
papillary muscles have not caused any detrimental effect on the valve function.
Conclusion
Surgical cryoablation of papillary muscles as described in this article should be
considered in MVP who suffer from MVA, aborted SCD or frequent ventricular ectopics
likely to cause LV dysfunction.
Keywords
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Article info
Publication history
Published online: June 10, 2022
Accepted:
April 10,
2022
Received in revised form:
March 17,
2022
Received:
November 21,
2021
Identification
Copyright
© 2022 Australian and New Zealand Society of Cardiac and Thoracic Surgeons (ANZSCTS) and the Cardiac Society of Australia and New Zealand (CSANZ). Published by Elsevier B.V. All rights reserved.
ScienceDirect
Access this article on ScienceDirectLinked Article
- Surgical Cryoablation of Malignant Papillary Muscle Arrhythmias During Mitral Valve Prolapse Surgery – Putting a Freeze on Sudden Cardiac DeathHeart, Lung and CirculationVol. 31Issue 10
- PreviewMitral valve prolapse (MVP) is a common finding with a reported prevalence of approximately 2.4% in patients from a general population in the Framingham Heart Study [1]. The underlying pathogenesis is myxomatous degeneration of the mitral valve that may lead to varying degrees of mitral regurgitation (MR) [2,3]. Many patients with MVP remain asymptomatic to their condition. Some, however, develop complications that may include symptomatic MR, infective endocarditis, heart failure, atrial and complex ventricular arrhythmias—the latter which may lead to sudden cardiac death (SCD) [4].
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