Evaluation of the heart rate and XXXX following the maze procedure for chronic @entity955 .

@entity1 @entity713 @entity591 @entity955 @entity1540 @entity4710 @entity943
PURPOSE: To assess the presence and the prevalence of @entity943 and the variability of the heart rate in the medium-term postoperative period following the maze procedure for chronic @entity955 ( @entity955 ). METHODS: Seventeen @entity1 with a mean age of 51.7 +/- 12.9 years, who previously underwent the maze procedure without cryoablation for chronic @entity955 , were evaluated with the 24 hour electrocardiogram (ECG)--Holter monitoring from the 6th month after the operation. Valvular and coronary procedures were concomitantly performed. RESULTS: The mean heart rate during Holter monitoring was 82 +/- 8 bpm; the maximal heart rate was 126 +/- 23 bpm and the minimal heart rate 57 +/- 7 bpm. Sinus rhythm was found in 10 (59%) @entity1 and atrial rhythm was found in 7 (41%). @entity4710 had a rate of 2.3 +/- 5.5% of the total number of heartbeats and occurred in 16 (94%) @entity1 . Six (35%) @entity1 showed nonsustained @entity591 . @entity1540 , with a rate of 0.8 +/- 0.5% of the total heartbeats, occurred in 14 (82%) @entity1 . The chronotropic competence was normal in 9 (53%) @entity1 and attenuated in 8 (47%). The @entity713 ( @entity713 ) was unchanged in 13 (76%) @entity1 and there were 4 (24%) cases of first degree @entity713 ( @entity713 ). CONCLUSION: After the maze procedure, the values for the mean heart rate, @entity713 conduction and chronotropic competence approach the normal range, although some cases show attenuation of the chronotropic response, @entity713 or benign @entity943 .
