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39 results on '"Ohzeki, Hajime"'

17. A New Method for the Repair of the Diaphragm during Surgery for Thoracoabdominal Aortic Aneurysms

Author

Moro, Hisanaga, 52624, Yagi, Nobuo, 52625, Nakayama, Takashi, 52626, Namura, Osamu, 52627, Ohzeki, Hajime, 52628, Hayashi, Jun-ichi, 52629, Moro, Hisanaga, 52624, Yagi, Nobuo, 52625, Nakayama, Takashi, 52626, Namura, Osamu, 52627, Ohzeki, Hajime, 52628, Hayashi, Jun-ichi, and 52629

Abstract

We designed a new procedure for the repair of the diaphragm during operations for thoracoabdominal aortic aneurysms. Both complete hemostasis and easy repair of the diaphragm were effected by the use of the autosuture. No complications occurred during the postoperative period. The autosuture is thus a useful technique in the repair of the diaphragm., departmental bulletin paper

Published
1998

19. Successful Treatment of a Recurrent Leiomyosarcoma of the Inferior Vena Cava

Author

Tsukada, Kazuhiro, 52850, Nishimura, Atsushi, 52851, Hatakeyama, Katsuyoshi, 52852, Ohzeki, Hajime, 52853, Eguchi, Shoji, 52854, Tsukada, Kazuhiro, 52850, Nishimura, Atsushi, 52851, Hatakeyama, Katsuyoshi, 52852, Ohzeki, Hajime, 52853, Eguchi, Shoji, and 52854

Abstract

A patient with a recurrent leiomyosarcoma of the inferior vena cava (IVC) was treated with aggressive surgery. The tumor originated from the inferior vena cava at the confluence of the renal veins and extended into the right atrium. The tumor was resected utilizing a cardiopulmonary bypass. It recurred in the right hepatic vein and right kidney 4 years after the initial operation. A right hepatectomy, right nephrectomy, and partial resection of the inferior vena cava was performed to treat the recurrence. The patient presently shows no evidence of recurrent disease 6 years after the initial operation. Aggressive surgery should thus be employed in the treatment of leiomyosarcomas of the inferior vena cava even in patients with tumor recurrence., departmental bulletin paper

Published
1996

23. 長時間心保存における酸素加GIK液の有効性 : ラット心移植モデルによる形態的研究

Author

大関, 一, Ohzeki, Hajime, 大関, 一, and Ohzeki, Hajime

Abstract

In order to evaluate the long-term effects of cold oxygenated GIK solution, we performed heterotopic cardiac transplantation in rats of isogenic strain. Donor hearts were separated into four groups: Gr.I, transplanted immediately affter 4℃ saline perfusion (n=15), Gr. II, transplanted immediately after 4℃ GIK solution perfusion (n=15), Gr, III, 90 minutes preservation in non-oxygenated 4℃ GIK solution (n=11), Gr. IV, 90 minutes preservation in oxygenated 4℃ GIK solution (n=11). In Gr. I and Gr. II, transplanted hearts were removed at varying intervals after surgery (7 days, 14 days, 30 days) and analyzed for morphological change. In Gr. III and Gr. IV, three transplanted hearts were removed at 1 hour and 24 hours and analyzed by means of electron microscopy. The remaining five hearts were removed at day 7 and analyzed for morphological change. We made a quantitative evaluation of myocardial fibrotic change (%fibrosis) by the point-counting method. Electron microscopically the Gr. III hearts showed more severe ischemic change compared with Gr. IV at 24 hours. In Gr. III and Gr. IV, the LV % fibrosis means were 25±3.4%(subendocardial layer 25±2.5%, midmyocardial layer 21±3.4%, epicardial layer 23.4±4.2%) and 14±2.7% (subendocardial layer 12±3.0%, midmyocardial layer 16±4.0%, epicardial layer 14±2.1%) respectively. The % fibrosis of the LV and the subendocardial layer was significantly lower in Gr. VI (P＜0.05). We conclude that cold GIK solution with oxygenation improves myocardial protection.

Published
1993

37. [Efficacy of vacuum-assisted closure therapy for various non-healing wounds after cardiovascular and thoracic surgery].

Author

Sugimoto A, Aoki K, Saito M, and Ohzeki H

Subjects
Aged, Humans, Male, Middle Aged, Postoperative Complications therapy, Cardiovascular Surgical Procedures, Thoracic Surgical Procedures, Vacuum, Wound Healing physiology
Abstract

Vacuum-assisted closure (VAC) therapy is an efficacious modality for treating chronic and difficult wounds. We present 3 cases that responded well to VAC therapy after cardiovascular and thoracic surgery: 1 methicillin-resistant Staphylococcus aureus (MRSA) wound infection after Stony's incision, 1 inguinal lymphorrhea, and 1 empyema after a traffic accident The duration of VAC therapy was 9, 18, and 90 days, respectively, and all 3 wounds healed completely. Familiar equipment and supplies available on the hospital ward were used, and patients were able to leave their beds. In this report, the efficacy of VAC therapy, the problems encountered, and the steps that could be taken to address them are discussed.

Published
2010

38. Successful surgical treatment of tricuspid valve endocarditis associated with vertebral osteomyelitis.

Author

Aoki K, Watanabe M, and Ohzeki H

Subjects
Aged, Endocarditis, Bacterial complications, Endocarditis, Bacterial drug therapy, Humans, Male, Osteomyelitis drug therapy, Spondylitis drug therapy, Tricuspid Valve Insufficiency drug therapy, Tricuspid Valve Insufficiency etiology, Tricuspid Valve Insufficiency microbiology, Endocarditis, Bacterial surgery, Osteomyelitis microbiology, Spine, Spondylitis microbiology, Tricuspid Valve, Tricuspid Valve Insufficiency surgery
Abstract

Right-sided endocarditis is relatively rare and can occasionally be complicated by vertebral osteomyelitis (VO). We describe successful treatment, including valve repair for tricuspid endocarditis associated with VO. A 77-year-old man presented with back pain and high fever. Magnetic resonance imaging demonstrated VO. Despite 2 months of intravenous antibiotics, the infectious signs persisted and both legs became edematous. Enterococcus faecalis was isolated from blood cultures, and echocardiography showed severe tricuspid regurgitation with large vegetations attached to the anterior leaflet (AL). A series of echocardiographic assessments revealed that the antibiotic therapy did not affect the tricuspid lesions. In surgery, the infection was extended to some chordae and over half of the AL was resected. The AL was repaired with autologous pericardium and artificial chordae. Antibiotic therapy was continued for 2 months after surgery, and the infections did not reoccur. Follow-up echocardiography showed mild regurgitation of the tricuspid valve. The patient remains free from endocarditis at 2 years after surgery.

Published
2010

39. Preoperative respiratory physiotherapy for a patient with severe respiratory dysfunction and annuloaortic ectasia.

Author

Sogawa M, Ohzeki H, Namura O, and Hayashi J

Subjects
Adult, Aortic Diseases complications, Dilatation, Pathologic surgery, Humans, Male, Respiratory Insufficiency complications, Severity of Illness Index, Aortic Diseases surgery, Physical Therapy Modalities, Preoperative Care, Respiratory Insufficiency therapy
Abstract

A 23-year-old man with Marfan syndrome, who had undergone surgery for pectus excavatum and scoliosis and who had severe respiratory dysfunction, was referred for surgical repair of annuloaortic ectasia. The preoperative pulmonary function test revealed severe obstructive and restrictive respiratory dysfunction, with forced expiratory volume in one second of 650 ml and vital capacity of 1,220 ml. These parameters improved after 4 months respiratory physiotherapy. A modified Bentall's procedure was performed after respiratory physiotherapy. A tracheostomy made on the 7th postoperative day (POD) appeared to improve respiratory condition and he was weaned off mechanical ventilation on the 14th POD. The lower limits of pulmonary function for open heart surgery have not been established clearly; however, our case will help elucidate these limits of respiratory function for open heart surgery. Preoperative respiratory physiotherapy improved parameters of pulmonary function test and may decrease the morbidity of postoperative pulmonary complications in a patient with severe respiratory dysfunction.

Published
2003

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