Hisayoshi Osawa
Sapporo Medical University
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Publication
Featured researches published by Hisayoshi Osawa.
Asian Cardiovascular and Thoracic Annals | 2007
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
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
Kenji Kuwaki; Nobuyoshi Kawaharada; Kiyofumi Morishita; Tetsuya Koyanagi; Hisayoshi Osawa; Toshiyuki Maeda; Tetsuya Higami
Annals of Thoracic and Cardiovascular Surgery | 2009
Hisayoshi Osawa; Taku Sakurada; Jun Sasaki; Eiji Araki
The Journal of Thoracic and Cardiovascular Surgery | 2007
Kazutoshi Tachibana; Nobuyuki Takagi; Hisayoshi Osawa; Motoki Takamuro; Masato Yokozawa; Hideki Tomita; Tetsuya Higami
Annals of Thoracic and Cardiovascular Surgery | 2004
Hisayoshi Osawa; Tatsuya Saitoh; Satoru Sugimoto; Nobuyuki Takagi; Tomio Abe
Annals of Thoracic and Cardiovascular Surgery | 2004
Hisayoshi Osawa; Tohru Mawatari; Atsushi Watanabe; Tomio Abe
The Journal of The Japanese Association for Chest Surgery | 2003
Hisayoshi Osawa; Chikara Shiiku; Tohru Mawatari; Atsushi Watanabe; Tomio Abe
Annals of Vascular Surgery | 2007
Yoshihiko Kurimoto; Kiyofumi Morishita; Nobuyoshi Kawaharada; Hisayoshi Osawa; Toshiyuki Maeda; Tetsuya Higami; Yasufumi Asai
The Journal of The Japanese Association for Chest Surgery | 2003
Hisayoshi Osawa; Chikara Shiiku; Tohru Mawatari; Atsushi Watanabe; Tomio Abe