OBJECTIVES: To present and test a simple surgical technique that may prevent @entity591 following surgery for @entity299 . This @entity943 is one of the commonest long-term complications of such a surgery. It may occur many years (even decades) after the operation. It is usually explained as a late consequence of right atriotomy, which is an inherent component of many operations for @entity299 . Right atriotomy results in a long scar on the right @entity955 . This scar, as any scar, is a barrier to electrical conduction, and macro-reentrant circuits may form around it, causing reentrant @entity591 . However, this mechanism may be counterchecked and neutralized by our proposed method, which prevents reentrant circuits around right atriotomy scars. METHODS: The proposed method is implemented after termination of cardiopulmonary bypass and tying the venous purse-strings. It consists of constructing a full-thickness suture line on the intact right atrial wall from the inferior vena cava (IVC) (a natural conduction barrier) to the atriotomy incision. This suture line is made to cross the venous cannulation sites if these are on the @entity955 (rather than being directly on the venae cavae). Thus, the IVC, atriotomy and cannulation sites are connected to each other in series by a full-thickness suture line on the atrial wall. If this suture line becomes a conduction barrier, it would prevent reentrant circuits around right atrial scars. This was tested in 13 adults by electroanatomical mapping. All 13 @entity1 had previously undergone right atriotomy for @entity118 closure: 8 of them with the addition of the proposed preventive suture line (treatment group) and 5 without (control group). RESULTS: In all 13 cases, the @entity2318 was identified as a barrier to electrical conduction with electrophysiological evidence of @entity82 ( @entity2318 ). In the 8 @entity1 with the proposed suture line, this had also become a scar and a complete conduction barrier. In the 5 @entity1 without this suture line, there was free electrical conduction between the IVC and @entity2318 . CONCLUSIONS: The proposed suture line becomes a scar and conduction barrier. Therefore, it would prevent reentrant circuits around atrial scars and their consequent @entity943 .

A simple surgical technique to prevent @entity591 in surgery for XXXX   .

@entity1 :: ('9606', 'Species') :: ['patients'] @entity82 :: ('MESH:D005355', 'Disease') :: ['fibrosis'] @entity2318 :: ('MESH:D002921', 'Disease') :: ['scarring', 'atriotomy scar'] @entity591 :: ('MESH:D013610', 'Disease') :: ['atrial reentrant tachycardia', 'tachycardia'] @entity955 :: ('MESH:D001281', 'Disease') :: ['atrial myocardium'] @entity299 :: ('MESH:D006331', 'Disease') :: ['congenital heart disease'] @entity118 :: ('MESH:D006344', 'Disease') :: ['atrial septal defect'] @entity943 :: ('MESH:D001145', 'Disease') :: ['arrhythmia', 'arrhythmias']
@entity299 :: (MESH:D006331,Disease) :: ['congenital heart disease']
