Medium-term results after the modified Cox/Maze procedure combined with other cardiac surgery

Izumoto, Hiroshi; Kawazoe, Kohei; Eishi, Kiyoyuki; Kamata, Junya

doi:10.1016/s1010-7940(99)00346-2

Cited by 50 publications

(16 citation statements)

References 11 publications

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“…With the implementation of the maze III procedure and with the use of alternative sources of energy, the frequency of pacemaker placement has decreased to 5-13% according to several studies 18,22,27,30,39 . Other authors assessed the need for permanent cardiostimulation after surgery as, as much as 20% (ref.…”

Section: Discussionmentioning

confidence: 99%

Cardiac Rhythm and Atrial Transport Function After Surgical Ablation of Atrial Fibrillation Using Cryoenergy: Predictors and Effectiveness of the Procedure

Kolek¹,

Brát²

2010

BIOMED PAP

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Aim. The aim of this prospective study was to assess the presence of sinus rhythm and atrial transport function after surgical ablation of atrial fibrillation using cryoenergy, and to evaluate predictors of the success of the procedure.Methods. Between January 2005 and September 2006, 100 consecutive patients underwent left atrial cryoablation as a concomitant surgical procedure (46 patients with paroxysmal or persistent atrial fibrillation and 54 with permanent atrial fibrillation). Mitral valve surgery was performed in 74%. The mean and the median times of follow-up were 20 ± 8.5, and 24 months respectively. Atrial mechanical function was assessed by echocardiography.Results. Sinus rhythm was achieved during the postoperative follow-up in 71-81% of patients -significantly more often in the group with paroxysmal and persistent atrial fibrillation (90-98%), than patients with permanent atrial fibrillation prior to surgery (51-65%) (p<0.002). At 12 and 24 months after the surgery, a total of 68.2% and 51.2% of the patients were free from atrial fibrillation; 73.9% and 60.7% of the patients from the paroxysmal and persistent atrial fibrillation group, and 60.3% and 37.7% of patients with permanent atrial fibrillation (p=0.05). Five per cent of patients required postoperative permanent pacemaker implantation. An effective left and right atrial mechanical function was detected in 70-90%, and 96-98% of patients with sinus rhythm respectively. The following circumstances were identified as negative predictors of the presence of sinus rhythm after the ablation procedure: growing diameter of the left atrium, the duration of atrial fibrillation and the severity of mitral and tricuspid regurgitation before surgery (p<0.05). Restoration of the left atrial transport function was negatively predicted by the preoperative diameter of the left atrium, the presence of mitral valve stenosis and the severity of tricuspid regurgitation (p<0.05). A total of 95.4% of patients were free from stroke at one-year follow-up, and 94.1% at 2 years after surgery.Conclusion. Stable sinus rhythm and effective left atrial transport function are the main factors resulting in decreased morbidity after successful ablation of atrial fibrillation. A careful post-operative follow-up of the patients and individualised treatment are necessary.

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Section: Discussionmentioning

confidence: 99%

Cardiac Rhythm and Atrial Transport Function After Surgical Ablation of Atrial Fibrillation Using Cryoenergy: Predictors and Effectiveness of the Procedure

Kolek¹,

Brát²

2010

BIOMED PAP

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“…On the contrary, many other long-term results of the maze procedure showed a gradual attrition rate of freedom from AF during the follow-up period [13,18,20]. This study also showed a progressively decreased maze success rate at 3, 5, 7, and 9 years after operation; 86.5%, 82.2%, 75.4%, and 69.8% respectively.…”

Section: Discussionmentioning

confidence: 47%

“…Conversely, actuarial methods used to delineate time-related events, 'AF recurrence-free rate' define any recurrent AF as a failure of the procedure, which may underestimate the actual clinical success rate. Since the most favorable method of the reporting the success rate is 'rhythm at last follow-up' [17][18][19], the method was adopted to evaluate the success and failure of maze procedures in this study. Looking at the definition of maze success, the reported clinical results of maze procedures were variously expressed, such as 'freedom from AF recurrence', and 'normal sinus rhythm restoration rate'.…”

Section: Discussionmentioning

confidence: 99%

Risk factors analysis on failure of maze procedure: mid-term results☆

Lee

Jung

et al. 2009

European Journal of Cardio-Thoracic Surgery

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“…Atrial flutter can effectively be abolished using conventional techniques, and can be oriented on electro-anatomic maps. We previously reported that the Maze procedure is useful for patients with chronic AFIB [16][17][18][19]. Recently, both human and animal studies have demonstrated that the PV and the posterior left atrial wall are important in triggering and driving fibrillation activity [1].…”

Section: Clinical Applicationsmentioning

confidence: 99%

Construction of a Three-dimensional Outline of the Heart and Conduction Pathway by Means of a 64-channel Magnetocardiogram in Patients with Atrial Flutter and Fibrillation

Nakai

Kawazoe

Izumoto

et al. 2005

Int J Cardiovasc Imaging

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Medium-term results after the modified Cox/Maze procedure combined with other cardiac surgery

Abstract: The medium-term results after the modified Cox/Maze III procedure concomitant with other cardiac procedure are good with improved functional status and good survival rate. However, there seems to be gradual but constant attrition in the rate of SR maintenance in SR group.

Cited by 50 publications

References 11 publications

Cardiac Rhythm and Atrial Transport Function After Surgical Ablation of Atrial Fibrillation Using Cryoenergy: Predictors and Effectiveness of the Procedure

Cardiac Rhythm and Atrial Transport Function After Surgical Ablation of Atrial Fibrillation Using Cryoenergy: Predictors and Effectiveness of the Procedure

Risk factors analysis on failure of maze procedure: mid-term results☆

Construction of a Three-dimensional Outline of the Heart and Conduction Pathway by Means of a 64-channel Magnetocardiogram in Patients with Atrial Flutter and Fibrillation

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