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Dive into the research topics where Hisayoshi Osawa is active.

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Featured researches published by Hisayoshi Osawa.


Asian Cardiovascular and Thoracic Annals | 2007

Emergency stent-grafting for patients over 85 years of age with thoracic aortic rupture.

Kiyofumi Morishita; Yoshihiko Kurimoto; Nobuyoshi Kawaharada; Hisayoshi Osawa; Toshiyuki Maeda; Tomio Abe

Conventional open repairs of thoracic aortic ruptures carry a high mortality and morbidity in patients over 85 years of age. Less invasive procedures may therefore be required to treat such elderly patients. An 87-year-old woman and 92-year-old man who had undergone emergency endovascular stent-grafting for thoracic aortic ruptures survived to discharge, despite critical conditions on admission.


The Japanese Journal of Thoracic and Cardiovascular Surgery | 1998

Surgical stabilization of multiple rib fractures successfully achieved with the use of long metalic plates

Akihiko Tanaka; Tei Sato; Hisayoshi Osawa; Tetsuya Koyanagi; Koji Maekawa; Noriyasu Watanabe; Atsunobu Nakase; Jun-ichi Sakata; Koji Kamada

Surgical stabilization of multiple rib fractures in 5 male patients was successfully achieved with the use of orthopedic A-O metalic plates, which are called reconstruction plates. In each patient, we prevented deformity of the rib cage and flail chest which frequently occurs after multiple rib fractures. Three of these patients received emergency operations because of severe hemopneumothorax and flail chest due to crushing injuries to the chest. They were treated by the standard thoracotomy, hemostasis of intrapleural bleeding, and stabilization of fractured ribs with reconstruction plates, in addition two of the patients underwent a single lobectomy to control the pulmonary hemorrhage. Another two patients were treated with mechanical ventilation and closed-tube thoracotomy following the chest trauma because their thoracic bleeding from drainage tubes was tolerable. But flail chest and respiratory insufficiency did not improve, in spite of positive controlled ventilation as a mode of internal pneumatic stabilization. Then surgical stabilization of the fractured ribs with these plates was carried out ten to twelve days after the accidents in each case. All patients tolerated the surgical procedures well and were successfully removed from the respirator, demonstrating complete stability of the chest wall. The long metal reconstruction plates with many perforations were very useful for the external fixation of segmentary fractured ribs as an external brace. This was because they were long enough to cover the whole length of the fractured ribs and moderately soft enough to be appropriately bent or twisted by hand at the time of operation. Moreover a number of holes in it allowed the suture to pass through the plate and rib, avoiding displacement of the prosthesis. This is the first report which describes the usefulness of orthopedic reconstruction plates for the stabilization of multiple rib fractures.


The Annals of Thoracic Surgery | 2007

Mitral valve repair versus replacement in simultaneous mitral and aortic valve surgery for rheumatic disease.

Kenji Kuwaki; Nobuyoshi Kawaharada; Kiyofumi Morishita; Tetsuya Koyanagi; Hisayoshi Osawa; Toshiyuki Maeda; Tetsuya Higami


Annals of Thoracic and Cardiovascular Surgery | 2009

Successful Surgical Repair of a Bilateral Coronary-to-Pulmonary Artery Fistula

Hisayoshi Osawa; Taku Sakurada; Jun Sasaki; Eiji Araki


The Journal of Thoracic and Cardiovascular Surgery | 2007

Cor triatriatum and total anomalous pulmonary venous connection to the coronary sinus

Kazutoshi Tachibana; Nobuyuki Takagi; Hisayoshi Osawa; Motoki Takamuro; Masato Yokozawa; Hideki Tomita; Tetsuya Higami


Annals of Thoracic and Cardiovascular Surgery | 2004

Dissection of intima on atrial septum patch after mitral valve replacement in a patient with infective endocarditis after incomplete atrio-ventricular septal defect repair: report of a case.

Hisayoshi Osawa; Tatsuya Saitoh; Satoru Sugimoto; Nobuyuki Takagi; Tomio Abe


Annals of Thoracic and Cardiovascular Surgery | 2004

New material for Nuss procedure.

Hisayoshi Osawa; Tohru Mawatari; Atsushi Watanabe; Tomio Abe


The Journal of The Japanese Association for Chest Surgery | 2003

A case of mediastinal bronchogenic cyst accompanied by air fluid level

Hisayoshi Osawa; Chikara Shiiku; Tohru Mawatari; Atsushi Watanabe; Tomio Abe


Annals of Vascular Surgery | 2007

Immediate Endovascular Stent-grafting for Leg Ischemia secondary to Acute Aortic Dissection: Report of a Case

Yoshihiko Kurimoto; Kiyofumi Morishita; Nobuyoshi Kawaharada; Hisayoshi Osawa; Toshiyuki Maeda; Tetsuya Higami; Yasufumi Asai


The Journal of The Japanese Association for Chest Surgery | 2003

A case of bronchopleural fistula as a late complication of extraperiosteal paraffin plombage 38 years postoperatively

Hisayoshi Osawa; Chikara Shiiku; Tohru Mawatari; Atsushi Watanabe; Tomio Abe

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Tomio Abe

Sapporo Medical University

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Tetsuya Higami

Sapporo Medical University

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Atsushi Watanabe

Sapporo Medical University

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Tetsuya Koyanagi

Sapporo Medical University

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Tohru Mawatari

Sapporo Medical University

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Toshiyuki Maeda

Sapporo Medical University

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Nobuyuki Takagi

Sapporo Medical University

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