Surgical treatment of chronic XXXX : Report of 8 cases.

@entity1 @entity339 @entity886 @entity358 @entity955 @entity4794 @entity472
Since February 2003, we have conducted surgical treatment on 8 @entity1 complicated with chronic @entity955 during cardiac surgery. A radial procedure was conducted on 7 @entity1 , and @entity358 was conducted on 1 @entity1 . Underlying diseases included @entity339 ( @entity339 ) in 5 @entity1 , @entity4794 ( @entity4794 ) in 1 @entity1 , @entity472 ( @entity472 ) + @entity4794 in 1 @entity1 and chronic type A dissociation in 1 @entity1 . Simultaneous procedures included @entity339 ( @entity339 ) in 3 @entity1 , mitral valve replacement (MVR) in 3 @entity1 , @entity886 ( @entity886 ) + MVR in 1 @entity1 , and aortic root reconstruction by reimplantation procedure + total arch replacement in 1 @entity1 . The operation time was 320 to 840 minutes and 458.1   171.1 minutes on average. The cardiopulmonary bypass time was 204 to 404 minutes and 266.7    62.7 minutes on average. The aortic cross-clamp time was 142 to 271 minutes and 171   41.5 minutes on average. One @entity1 died in hospital. Six @entity1 returned to sinus rhythm, and 1 @entity1 required pacemaker implantation. The follow-up period was 2 to 37 months and 13.6    15 months on average. When cryoablation was changed to radiofrequency ablation to assist preparation of the block line, a tendency toward shortening of the aortic clamping time was observed.
