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Toshiya Ohtsuka
Hiroshi Kubota
Yoshihiro Suematsu
Noboru Motomura
Shinichi Takamoto
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J Thorac Cardiovasc Surg 2003;125:1537-1538
© 2003 The American Association for Thoracic Surgery

Brief Communications

Video-assisted transseptal cryoablation of left atrium in nonmitral cases

Toshiya Ohtsuka, MD, Hiroshi Kubota, MD, Yoshihiro Suematsu, MD, Noboru Motomura, MD, Shinichi Takamoto, MD Tokyo, Japan

From the Departments of Cardiothoracic Surgery, University of Tokyo, Tokyo, Japan.

Received for publication Aug 27, 2002. Accepted for publication Oct 9, 2002. Address for reprints: Toshiya Ohtsuka, MD, Department of Cardiothoracic Surgery, University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8655 Japan (E-mail: ootsuka-cvs@umin.ac.jp).

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

The maze procedure, originated by Cox and colleagues,Go Go 1,2 has become the criterion standard for the surgical treatment of chronic or paroxysmal atrial fibrillation. In this procedure, both atria are electrically separated into small compartments by atriotomy and cryoablation to prevent electrical macro reentry at each compartment, and a conduction from the sinus node to the atrioventricular node is preserved. In the usual left atrial (LA) maze procedure, endocardial cryoablation is performed directly through a right-sided left atriotomy, which is created anterior to the pulmonary veins (PVs).

In a limited number of patients in whom the mitral valve was left untouched, a video-assisted minicardioscopic approach through a small cut in the fossa ovalis or a congenital atrial septal defect (ASD) was used instead of a direct left atriotomy approach. This report describes the method and clinical outcomes of this technique.

Patients and method

This technique was applied to 3 consecutive male patients with chronic atrial fibrillation and concomitant . . . [Full Text of this Article]






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