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J Thorac Cardiovasc Surg 2005;129:446-447
© 2005 The American Association for Thoracic Surgery

Brief Communications

Polymorphic ventricular tachycardia after radiofrequency maze procedure: Report of two cases

Santosh Kumar Dora, DMa,*, Praveen Kerala Varma, Mchb, Chandrabhanu Parija, MSb, Krishnakumar Nair, DMa, Rupa Sreedhar, MDc, Kurur Sankaran Neelakandhan, Mchb, Jaganmohan Tharakan, DMa

a Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala, India
b Cardiothoracic Surgery, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala, India
c Anesthesiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Kerala, India

Received for publication May 4, 2004; accepted for publication May 21, 2004.

* Address for reprints: Santosh Kumar Dora, DM, Division of Cardiology, Sree Chitra Tirunal Institute for Medical Sciences and Technology, Trivandrum, Kerala, India-695 011 (E-mail: kskdora@sctimst.ker.nic.in).

The first 20% of the full text of this article appears below.


Parija, Nair, Neelakandhan, Dora, Sreedhar (front row, left to right); Tharakan, Varma (back row, left to right)


Since the initial report in 1991, the maze procedure performed surgically (cut and sew) has been widely accepted worldwide as a treatment for atrial fibrillation (AF) with or without associated structural heart disease.1,2 In an effort to reduce the number of incisions, an irrigated radiofrequency (RF) device has been used to create the majority of the required lesions.3 We report postoperative sinus node dysfunction complicating polymorphic ventricular tachycardia (VT) in 2 patients who underwent the maze procedure by means of RF ablation along with valve replacements.


   Clinical summary
 
PATIENT 1. A 46-year-old woman with rheumatic heart disease with severe calcific mitral stenosis and AF underwent the biatrial maze III procedure with saline-irrigated, cooled-tip- RF ablation (SICTRA; Medtronic Cardioblate System, Medtronic Inc) and mitral valve replacement with a 27-mm Medtronic Hall mechanical valve. Postoperatively, there was no sinus activity, and the patient was in junctional . . . [Full Text of this Article]






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