Tadahiro Murakami
Osaka City University
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Featured researches published by Tadahiro Murakami.
Surgery Today | 2004
Yasuyuki Sasaki; Fumitaka Isobe; Seiji Kinugasa; Keiji Iwata; Tadahiro Murakami; Motoko Saito; Manabu Motoki
PurposeThis retrospective study was conducted to evaluate the effects of coronary artery disease (CAD) on short- and long-term survival after abdominal aortic aneurysm (AAA) repair.MethodsOne hundred consecutive patients underwent elective AAA repair between 1991 and 2002. Coronary angiography was performed in all patients, revealing significant coronary artery lesions in 47 (47%). Percutaneous transluminal coronary angioplasty (PTCA) was performed in 11 patients, 20 (median) days before the abdominal surgery. Abdominal aortic aneurysm repair was performed 60 (median) days after coronary artery bypass grafting (CABG) in five patients, and both procedures were performed simultaneously in two patients.ResultsThe in-hospital mortality rate for AAA repair was 1.0%, but there was no cardiac-related operative morbidity or mortality. The 96 patients discharged were followed up for a mean period of 2.9 years (range 3–143 months). The cumulative survival rates after 1, 2, 3, and 5 years were 98%, 95%, 88%, and 77%, respectively. Only one patient (1%) died of myocardial infarction. There was no significant difference in the long-term survival of the CAD and non-CAD patients.ConclusionsThese results emphasize the importance of routine coronary angiography and subsequent coronary revascularization to improve early and late survival rates after AAA repair.
The Japanese Journal of Thoracic and Cardiovascular Surgery | 2000
Yasuyuki Sasaki; Shigefumi Suehiro; Toshihiko Shibata; Tadahiro Murakami; Mitsuharu Hosono; Hiromichi Fujii; Hiroaki Kinoshita
OBJECTIVE The timing of surgery for active infective endocarditis remains controversial. In this report, we have reviewed 26 patients who underwent surgery for active infective native-valve endocarditis between April 1992 and December 1998. PATIENTS AND METHOD There were 19 male and 7 female patients (mean age 45 years). The aortic valve was involved in 8 patients, the mitral valve in 6 patients, tricuspid valve in 2 patients, both aortic and mitral valves in 7 patients, both aortic and tricuspid valve in 2 patients, and both mitral and tricuspid valve in one patient. The most common microorganisms were streptococcal species. Preoperative high New York Heart Association functional class (III and IV) was presented in 20 patients (77%). Progressive heart failure and the echocardiographic findings of vegetation (larger than 1 cm) were the main operative indications. Emergency or urgent surgery was required in 18 patients (70%). All patients underwent valve replacement, involving 25 mechanical prosthesis and 8 bioprosthesis. RESULTS The operative mortality was 7.8% (n = 2). In the two patients who died, the infection had extended to the deep cardiac tissue and to the cerebral artery. The mean follow-up of the 24 survivors was 33 months (range from 6 to 82 months). There was no late death and no recurrence of infective endocarditis. CONCLUSION In case of active infective endocarditis, early surgical intervention is recommended in patients with rapidly progressive cardiac deterioration or vegetation seen on echocardiography.
The Japanese Journal of Thoracic and Cardiovascular Surgery | 2001
Hiromichi Fujii; Shigefumi Suehiro; Toshihiko Shibata; Yasuyuki Sasaki; Tadahiro Murakami; Hiroaki Kinoshita
A 67-year-old man, with a history of pulmonary tuberculosis since 18 years old, presented shortness of breath because of severe mitral regurgitation. Magnetic resonance imaging showed that the heart was displaced into the left thoracic cavity and rotated clockwise around its long axis. The forced expiratory volume per second was 1.06 l (46.7% of the predicted value) and the vital capacity was 2.48 l (72.1% of predicted value). Surgery was performed through a median sternotomy. An internal mammary artery harvest retractor was used to obtain operative exposure. Extensive pericardial suspension was used to push the over-inflated right lung across the midline. Extracorporeal circulation was established. The mitral valve was replaced with a mechanical prosthesis. The patient was weaned easily from extracorporeal circulation and was extubated on the day of surgery. If preoperative respiratory function is adequate, cardiac surgery can be performed safely in a patient with only one functional lung.
Japanese Journal of Cardiovascular Surgery | 2015
Masanori Sakaguchi; Tadahiro Murakami; Takumi Ishikawa; Hirokazu Minamimura
Revascularization of the Superior Mesenteric Artery in an Intestinal Angina Masanori Sakaguchi, Tadahiro Murakami, Takumi Ishikawa and Hirokazu Minamimura(Department of Cardiovascular Surgery, Bell Land General Hospital, Sakai, Japan) A 69-year-old woman suffered from postprandial abdominal pain and hematochezia. Colonoscopy suggested ischemic colitis, and intestinal angina was diagnosed by multirow-detector computed tomography(CT), which showed occlusion of the superior mesenteric artery(SMA). On enhanced CT, there was extensive calcification on the aortic wall and aortic expansion and several mural thrombi in the thoracoabdominal and abdominal aorta, as well as severe stenoses in the bilateral common iliac arteries. A bypass from the right renal artery, which was the only artery without significant stenosis of the major branches of the abdominal artery, to the SMA, was created using a saphenous vein graft. Postoperatively, the postprandial abdominal pain disappeared, and the patient was discharged after a good postoperative course. Jpn. J. Cardiovasc. Surg. 44 : 108-111(2015)
Annals of Thoracic and Cardiovascular Surgery | 1999
Shigefumi Suehiro; Toshihiko Shibata; Yasuyuki Sasaki; Tadahiro Murakami; Mitsuharu Hosono; Hiromichi Fujii; Hiroaki Kinoshita
Japanese Journal of Cardiovascular Surgery | 2003
Yasuyuki Kato; Satoru Miyamoto; Hirokazu Minamimura; Takumi Ishikawa; Tadahiro Murakami; Hiroyuki Nishi; Kensuke Ohue; Yoshihiro Shimizu
Annals of Thoracic and Cardiovascular Surgery | 2002
Mitsuharu Hosono; Yoshihiro Shimizu; Syuichiro Takanashi; Hirokazu Minamimura; Takumi Ishikawa; Tadahiro Murakami; Ken-u Fumimoto; Hiroyuki Nishi
Annals of Thoracic and Cardiovascular Surgery | 1999
Shigefumi Suehiro; Toshihiko Shibata; Yasuyuki Sasaki; Tadahiro Murakami; Mitsuharu Hosono; Hiromichi Fujii; Hiroaki Kinoshita
Japanese Journal of Cardiovascular Surgery | 2002
Takeshi Ikuta; Shigefumi Suehiro; Toshihiko Shibata; Yasuyuki Sasaki; Hidekazu Hirai; Tadahiro Murakami; Mitsuharu Hosono; Hiromichi Fujii; Takanobu Aoyama; Hiroaki Kinoshita
The Japanese Journal of Thoracic and Cardiovascular Surgery | 2017
Hirokazu Minamimura; Takumi Ishikawa; Tadahiro Murakami; Shinsuke Kotani