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Intermittent electromechanical dissociation following mitral valve replacement with mechanical valve: a different
Deepak Gopakumar1, Bineesh Kundoly Radhakrishnan1, Thomas Koshy2
1Department of CVTS, SCTIMST, Thiruvananthapuram, Kerala India.
Indian Journal of Thoracic and Cardiovascular Surgery
|April 18, 2025
Summary
A patient experienced electromechanical dissociation after mitral valve replacement. A torn suture caused prosthetic valve dysfunction, successfully treated by suture removal and recovery.
Area of Science:
- Cardiovascular Surgery
- Cardiac Valve Disease
- Medical Device Complications
Background:
- Mitral valve replacement with papillary muscle resuspension is a complex procedure.
- Prosthetic valve dysfunction can arise from various mechanical complications.
- Electromechanical dissociation is a rare but critical condition requiring prompt diagnosis.
Observation:
- A 62-year-old male developed intermittent electromechanical dissociation post-mitral valve replacement.
- Transesophageal echocardiography revealed extrinsic prosthetic valve dysfunction.
- A torn pledgeted suture from papillary muscle resuspension was identified as the cause.
Findings:
- The torn suture lodged between the prosthetic valve's disc occluder and valve ring.
- This mechanical obstruction led to the observed prosthetic valve dysfunction and electromechanical dissociation.
- Surgical removal of the offending suture resolved the complication.
Implications:
- This case underscores the critical role of advanced imaging in diagnosing unusual prosthetic valve failures.
- Vigilant monitoring is essential for early detection of rare complications after cardiac surgery.
- Careful surgical technique and material selection are paramount to prevent suture-related complications.
Keywords:
Electromechanical dissociationPapillary muscle resuspensionProsthetic valve dysfunctionTilting disc valveMore Related Videos
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