Suture fixation of migrated septal occluder device to prevent further migration: a simple surgical technique
© Mohite et al.; licensee BioMed Central Ltd. 2013
Received: 21 August 2012
Accepted: 11 January 2013
Published: 16 January 2013
As the use of percutaneous intervention is increasing for the closure of the atrial septal defect, the procedure related complications are also on rise, migration of the device being most common. The migrated devices with failed percutaneous retrieval must be removed surgically under cardiopulmonary bypass. During establishment of cardiopulmonary bypass, the handling of heart may cause further migration of the device into other chambers of heart which leads to difficulty in finding and retrieval of the device. The authors propose a simple and unique technique to prevent further migration of the septal occluder device.
KeywordsAtrial septal defect Septal occlude device Transcatheter closure Migration of occlude device
The transcatheter closure of the atrial septal defect (ASD) has been proposed as an alternative to surgical therapy for the ostium secundum ASD. The transcatheter closure ASDs was first described by King and Mills in 1976 . It is considered an effective and safe procedure, and although rare but potentially fatal complications have been reported. Migration of the septal occluder devices is a common complication of the procedure . The migrated devices with failed percutaneous retrieval must be removed surgically under cardiopulmonary bypass.
Recently, percutaneous transcatheter procedures emerged as therapeutic alternatives for closure of both atrial septal defects and patent foramen ovale. Percutaneous closure of ASDs is an excellent therapeutic option for the appropriate patient, yielding comparable results to surgery with minimal morbidity and complications. Unfortunately, however, such percutaneous procedures may require surgical intervention for early or late complications. Percutaneous ASD closure has proven to be reliable, safe, and effective . The reported success rate of these devices in closing ASD is as high as 98% . Periprocedural complications include air embolism, device migration, cardiac tamponade, device erosion, atrial arrhythmias, and those related to vascular access . Moreover, device related complications include device migration, device fracture, device thrombosis, and device erosion. Device embolization occurs in about 0.55% of cases, regardless of ASD size, device size, or the physician’s expertise .
There are several reasons for the acute failure of these devices. The most important is suboptimal patient and/ or device selection [6, 7]. Other suggested mechanisms of acute failure are device related failure, inadequate experience, poor defect rim to hold the device [4–6], and tearing of the interatrial septum as a result of catheter and device manipulations . It has been reported by Balbi M et al. that percutaneous retrieval was successful in 50% of the cases of ASO embolization that have been reported in the literature .
Once the device is migrated, it may slip into right atrium, right ventricle to pulmonary artery or into left atrium, left ventricle to aorta. Surgical intervention becomes mandatory when the migrated device could not be retrieved by percutaneous catheter intervention . Urgent surgery and device retrieval is necessary when device gets migrated into heart chambers and causes arrhythmia or hemodynamic compromise.
The migrated septal occluder device may be further migrated due to manipulation of the heart while putting patient on cardiopulmonary bypass. Authors suggest palpating the migrated device gently and holding it with the pair of forceps. The device is then sutured from outside to the wall of the chamber containing it with fine polypropelene suture. Once the device is thus secured to the chamber wall, procedure can be progressed without hesitation and fear of further migration of device. This technique which does not consume much time is useful in occluder device migration in any patient irrespective of age or urgency of the procedure.
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