Stiff @entity4032 after catheter ablation for XXXX : clinical characterization, prevalence, and predictors.

@entity1 @entity712 @entity339 @entity6 @entity1353 @entity120 @entity27 @entity849 @entity955 @entity299 @entity4032 @entity67 @entity943 @entity1002
BACKGROUND: There have been no studies of atrial diastolic function after catheter ablation of @entity955 ( @entity955 ). We encountered a few @entity1 with symptomatic left @entity1002 and associated @entity120 ( @entity120 ) that developed after catheter ablation for @entity955 . Similar findings were described in @entity1 after cardiac surgery and were referred to as the "stiff @entity4032 ." OBJECTIVE: The purpose of this study was to prospectively quantify the incidence of @entity1 developing @entity120 associated with diastolic hemodynamic abnormalities of the LA after radiofrequency ablation of @entity955 and to identify the possible predictors. METHODS: Between January 2009 and July 2010, data on 1,380 consecutive @entity1 were prospectively collected. Before ablation and at follow-up, all @entity1 had an echocardiogram to assess for the presence of @entity120 . @entity1 with no echocardiographic evidence of @entity120 but complaining of unexplained @entity1353 with @entity4032 were evaluated with @entity299 ( @entity299 ). @entity1 were included in the analysis if they developed new or worsening @entity120 postablation with evidence of LA @entity67 by @entity299 or direct LA pressure measurement. All @entity1 were evaluated for @entity849 and excluded if this condition was identified. RESULTS: The mean age was 62    11 (75% male), and nonparoxysmal @entity955 was the predominant @entity943 (71%). New or worsening @entity120 with associated @entity4032 was detected in 19 (1.4%) @entity1 after ablation. The prevalence of @entity120 did not differ between @entity955 types (P = .612). Compared with @entity1 who did not develop @entity120 , LA scarring (P <.001), @entity6 (P = .026), and @entity27 ( @entity27 ; P = .006) were more frequently observed among those who developed @entity120 . In a multivariable logistic model, preprocedure LA size  <=45 mm (odds ratio [OR] = 6.13; P = .033), mean LA pressure (OR 1.14; P = .025), severe LA scarring (OR = 4.4; P = .046), @entity6 (OR = 9.5; P = .004), and @entity27 (OR = 6.2; P = .009) were independently associated with the development of @entity120 postablation. CONCLUSIONS: After radiofrequency catheter ablation of @entity955 (RFCAF), @entity120 with LA @entity67 or the so-called stiff LA syndrome is a rare but potentially significant complication of @entity955 ablation. Severe LA scarring, LA  <=45 mm, @entity6 , @entity27 , and high LA pressure are clinical variables that predict the development of this syndrome. The main clinical findings include @entity1353 , @entity712 , @entity120 , and large V waves on pulmonary capillary wedge pressure (PCWP) or LA pressure tracings in the absence of @entity339 .
