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50 results on '"Kawata, Tetsuji"'

41. Anuria Resulting from the Non-Inflammatory (Atherosclerotic) Large Abdominal Aortic Aneurysm. A Successful Surgical Case with Recovery of Renal Function.

Author

KANEDA, Kozo, primary, KAWACHI, Kanji, additional, MORITA, Ryuichi, additional, NISHII, Tsutomu, additional, INOUE, Kiyoshi, additional, TANIGUCHI, Shigeki, additional, KAWATA, Tetsuji, additional, MIZUGUCHI, Kazumi, additional, FUKUTOMI, Masaaki, additional, and KITAMURA, Soichiro, additional

Published
1992
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44. Aortic valve replacement in a patient with left ventricular noncompaction.

Author

Hirose, Tomoaki, Kawata, Tetsuji, Hamada, Yoshihiro, Tabayashi, Nobuoki, Abe, Takehisa, and Taniguchi, Shigeki

Abstract

Left ventricular noncompaction is a rare cardiac pathology that results from an arrest in endomyocardial development in early embryogenesis. With great advances in imaging modalities, this pathological entity has been noted not only in the pediatric population but also in adults. Herein we report the case of a 62-year-old woman who successfully underwent aortic valve replacement for aortic regurgitation complicated by left ventricular noncompaction. [ABSTRACT FROM AUTHOR]

Published
2015
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47. [Aortic root replacement with a freestyle stentless valve for prosthetic valve detachment caused by aortitis syndrome; report of a case].

Author

Ueda T, Nagashima K, Kawata T, and Hatanaka N

Subjects
Aged, Aortic Valve Insufficiency surgery, Bioprosthesis, Humans, Male, Postoperative Complications, Reoperation, Takayasu Arteritis surgery
Abstract

A surgical case of a 65-year-old man with aortitis syndrome is presented. The patient had undergone aortic valve replacement for aortic valve regurgitation with a mechanical prosthesis, followed by a re-do operation (valve fixation) for prosthetic valve detachment 6 months after the 1st operation. Three months after the 2nd operation, perivalvular leakage due to valve detachment was detected again. Aorticroot replacement with a Freestyle stentless valve( full root technique) was performed. Prednisolone was given postoperatively, and no valve detachment nor pseudoaneurysm formation has been noted for 8 years.

Published
2014

48. [Stepwise technique of the proximal anastomosis with the new proximal anastomotic system for the prevention of kinking of the graft].

Author

Kawata T, Hamada Y, and Nakayama Y

Subjects
Anastomosis, Surgical methods, Humans, Coronary Artery Bypass methods
Abstract

In using the proximal anastomotic system, the anastomotic site should be carefully selected to prevent the kinking of the graft, because the angle of the graft and the aortic wall is perpendicular. There recommended anastomotic sites are the left lateral aortic wall adjacent to the pulmonary artery for the left coronary system grafting and the lower aortic wall adjacent to the right atrium for the right coronary system grafting respectively. When the selection of these sites are difficult because of the atherosclerotic lesion of the aorta, the short vein graft (2-3 cm) was first anastomosed with PAS-Port device to the site free from atherosclerosis. Then, the long vein graft was anastomosed to the short graft with monofilament suture under end-to-side fashion. The angle of the anastomosis was decided according to the relationship of the aorta and the target coronary artery to establish a smooth graft line. By this stepwise technique, the optimal graft design could be obtained without a risk of the kinking of the graft.

Published
2006

49. Re-do mitral valve replacement using the valve-on-valve technique: a case report.

Author

Tamura Y, Kawata T, Kameda Y, and Taniguchi S

Subjects
Female, Heart Rupture etiology, Humans, Middle Aged, Pulmonary Edema etiology, Reoperation, Bioprosthesis, Device Removal methods, Heart Valve Prosthesis, Mitral Valve Insufficiency surgery, Prosthesis Failure
Abstract

We report a repeated mitral valve replacement (re-do MVR) using the valve-on-valve technique for a degenerated bioprosthesis. A 49-year-old female, who had had a 29 mm Carpentier-Edwards mitral bioprosthesis for mitral regurgitation 20 years previously, was referred to our institution for dyspnea. She presented with pulmonary edema secondary to severe mitral bioprosthetic valve regurgitation. We replaced the degenerated mitral bioprosthesis with a 25 mm mechanical prosthesis using the valve-on-valve technique, as the struts of the bioprosthesis were embedded in the left ventricular myocardium. Removal of the bioprosthesis may be not only time-consuming but also complicated by cardiac rupture at the atrioventricular junction or the posterior left ventricular wall. The valve-on-valve technique is a simplified procedure that can avoid the potential complications of complete excision of the bioprosthesis. We believe this technique can be a useful strategy for patients with a degenerated mitral bioprosthesis.

Published
2005

50. Feasible pericardiotomy for off-pump coronary artery bypass.

Author

Kawata T, Ueda T, and Taniguchi S

Subjects
Humans, Coronary Artery Bypass methods, Pericardiectomy methods
Abstract

Pericardiotomy is the first essential step for the exposure of the coronary artery in off-pump coronary artery bypass (OPCAB) via a median sternotomy. After the dissection of the pericardium from the pleura, a longitudinal pericardiotomy from the apex to the aortic reflection was employed. The pericardiotomy was extended transversely to make a trapezoidal flap. By the traction of the left pericardium, anterior vessels were well exposed. For the closure, a trapezoidal pericardial flap was useful.

Published
2003

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