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Abstract:

Ventricular septal defect after myocardial infarction (post-MI VSD) is one of the most rare and lethal complication.

We present a case report of patient with recurrent VSD, 7 months after coronary artery bypass graft with cardiosurgical correction of post-MI VSD. Due to the high risk of re-operation, it was decided to perform endovascular closure of VSD.

Despite acceptable stability test, after delivery system disconnection - migration of occluder to left ventricular occurred. All efforts to retrieve device were not successful, due to strong fixation of the device in anterior leaflet chordal tendons of mitral valve (MV). The presence of 12 mm occluder didn't influence on existed MV insufficiency, so the decision to leave this device in place and to implant the bigger one to VSD was made. 14 mm occluder was successfully implanted, with immediate reduction of left-right shunt and normalization of pulmonary artery pressure. Follow-up period is 3 years - patient doesn't have any complaints. Ejection fraction 55%, mitral insufficiency 30% by volume, device is fully endothelialyzed.

Endovascular VSD occlusion can be effectively used in case of post-surgery re-occurence. In cases of migration of endovascular devices, thorough functional analysis should be performed for choosing the best strategy of further actions. In this clinical case the decision to leave the device in LV didn't cause any negative outcomes for the patient.

 

References

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