1.A Simple Modified Infarct Exclusion Technique for a Patient with Large Ventricular Septal Perforation
Kazuhiro Hisamoto ; Masaaki Toyama ; Masanori Katoh ; Yuji Kato ; Yukiharu Sugimura
Japanese Journal of Cardiovascular Surgery 2013;42(2):168-171
A 79 year-old woman was given a diagnosis of acute myocardial infarction and was immediately transferred to our hospital by a helicopter. Cardiologists successfully revascularized the occluded left anterior descending artery which was considered to be the care of this case. After that, they detected a large ventricular septal perforation by transthoracic echocardiography. We performed repair of the ventricular septal perforation 4 days later, with a modified infarct exclusion technique. Residual shunt flow was not seen by echocardiography after the operation. This patient recovered uneventfully and was discharged on postoperative day 55.
2.A Case Report of Abdominal Aortic Aneurysm Associated with Crossed-Fused Ectopia of the Kidney.
Tomohiro Mizuno ; Masaaki Toyama ; Noriyuki Tabuchi ; Kazuyuki Kuriu ; Masanori Kato
Japanese Journal of Cardiovascular Surgery 2001;30(2):92-94
A rare case of abdominal aortic aneurysm associated with crossed-fused ectopic kidney in a 74-year-old man is reported. On enhanced CT scans, the maximum diameter of his infrarenal aortic aneurysm was 55mm, and he lacked a right kidney. A crossed ectopic kidney was fused to the lower part of the left kidney. On preoperative examinations, only one feeding artery to the ectopic kidney separated from the right common iliac artery. However, laparotomy confirmed the presence of three aberrant renal arteries, the middle one of which was very slim. Aneurysmectomy and a bifurcated artificial graft replacement was performed. After proximal anastomosis, the two larger aberrant renal arteries were reconstructed under renal protection with intermittent infusion of cold Ringer's solution. The smallest aberrant renal artery was ligated. Postoperatively, this patient recovered without any complications. In operations for abdominal aortic aneurysm associated with renal anomaly including ectopic kidney, horseshoe kidney, and pelvic kidney, it is important to elucidate the anatomy of aberrant renal arteries preoperatively, and reconstruct as many of these arteries as possible. This report is apparently the fourth on abdominal aortic aneurysm associated with crossed ectopic kidney.
3.A Case of Emergency Surgery for a Huge Primary Right Atrial Angiosarcoma with Right Ventricular Failure and Shock
Yuji Kato ; Masanori Kato ; Mitsuhisa Kotani ; Kazuhiro Hisamoto ; Yukiharu Sugimura ; Masaaki Toyama
Japanese Journal of Cardiovascular Surgery 2011;40(6):322-325
We encountered a rare case of a 75-year-old woman who fell into right ventricular failure and shock with a comparatively rapid course due to a huge primary right atrial angiosarcoma occupying the right atrium. An emergency surgical excision of the tumor was performed and the right atrium was reconstructed with an EPTFE patch under cardiopulmonary bypass. On account of the positive margin, postoperative radiotherapy was added. There was no local recurrence, but adjuvant chemotherapy was performed for multiple lung and liver metastases 14 months after surgery. Primary cardiac angiosarcomas are extremely rare and have dismal prognoses. Although a complete surgical resection is the cornerstone of treatment, multidisciplinary therapy may improve patient outcomes.
4.Causes of death in non-insulin-dependent diabetes mellitus.
Tomio KAMETANI ; Yutaka IGARASHI ; Takayuki HORIGAMI ; Masanori KAWATO ; Tadayuki NAGAI ; Masayuki KATO
Journal of the Japanese Association of Rural Medicine 1990;39(2):107-110
We analyzed the causes of death in 74 non-insulin-dependent diabetes mellitus (NIDDM) patients who died in Koseiren Takaoka hospital between 1982 and 1988 and compared with 334 non-diabetic dead patients.
The first cause of death in NIDDM was malignant neoplsma (35.1% of NIDDM). The second was ischemic heart disease (17.6%). The third was infection (12.2%). The ratios of cerebral infarction and diabetic nephropathy were 9.5% each. The ratios of ischemic heart disease and cerebral infarction in diabetics were twice those in non-diabetics. The tratio of uremia in diabetics wassix-fold. In patients over 61 years old, the ratios of ischemic heart disease and diabetic nephropathy were large. Nevertheless, in patients under 60 years old, the proportion of cerebral infarction was higher. The proportions of cerebral infarction and ischemic heart disease were higher in the group of long diabetic duration than in group of short duration.
Compared with past Japanese reports, the proportions of malignant neoplasma and ischemic heart disease in diabetics increased and the proportions of diabetic nephropathy and coma decreased.
This study concluded that not only the control of diabetes mellitus but also the examination of malignant neoplasma was important in management of diabetes mellitus. The proportion of the causes of death in diabetics will change with changes of the circumstances and the progress of medical treatment.
5.A Case of Stentless Aortic Valve Reoperation for Severe Aortic Regurgitation due to Dilation of the Sinotubular Junction
Kazuhiro Hisamoto ; Masaaki Toyama ; Masanori Katoh ; Mitsuhisa Kotani ; Yuji Kato ; Yukiharu Sugimura
Japanese Journal of Cardiovascular Surgery 2012;41(1):25-28
A 72-year-old woman underwent a double aortic valve replacement with the Freestyle aortic bioprosthesis and subcoronary implantation with the Mosaic mitral bioprosthesis because of rheumatic multivalvular heart disease in 2000. During her annual follow-up, her Sinotubular junction was observed to have gradually increased in diameter on echocardiography and computed tomography. Therefore, 9 years after surgery we performed a reoperation for severe aortic regurgitation. Intraoperatively, the stentless bioprosthesis was found to be structurally intact. We believe that the dilation of the Sinotubular junction associated with a stentless bioprosthesis in the subcoronary position have caused her severe aortic regurgitation.
6.Early Structural Valve Deterioration of Third-Generation Porcine Bioprosthesis in Patients
Mitsuhisa Kotani ; Masaaki Toyama ; Masanori Katoh ; Yuji Kato ; Kazuhiro Hisamoto ; Yukiharu Sugimura
Japanese Journal of Cardiovascular Surgery 2010;39(6):339-342
A 78-year-old woman underwent mitral valve replacement (MVR) with bioprosthesis in 1984. By 1997 the valve had become dysfunctional and was replaced with a Mosaic valve. Dyspnea on exertion occurred in 2005 and a systolic murmur was detected at that time. Echocardiography revealed severe mitral regurgitation (MR). The mitral valve was replaced for the third time. The explanted valve showed commissural dehiscence at the stent position and calcified leaflets. The mitral valve of a 70-year-old man was replaced with a bioprosthesis in 1986, and again with a Mosaic valve in 1997 because the original bioprosthesis had become dysfunctional. Seven years later, a systolic murmur appeared and echocardiography revealed severe MR. The valve was replaced for the third time. A leaflet tear was found in the removed valve. The Mosaic valve is a third generation porcine bioprosthesis that reportedly has excellent long-term durability. However, in these cases, the Mosaic valves deteriorated prematurely, and no obvious causes of this early structural deterioration could be identified. Continued long-term follow up is necessary, and the possibility of premature deterioration should be considered when selecting bioprostheses.
7.Surgical Repair of Various Pseudoaneurysms in 2 Patients with Vasculo-Behçet Disease
Yukiharu Sugimura ; Mitsuhisa Kotani ; Masanori Katoh ; Yuji Kato ; Kazuhiro Hisamoto ; Masaaki Toyama
Japanese Journal of Cardiovascular Surgery 2010;39(6):363-366
Vasculo-Behçet disease (VBD) is a special type of Behçet disease (BD) involving some vascular disorders like aneurysmal formation, arterial occlusion, and venous thrombosis in various vessels. VBD has a poor prognosis due to aneurysmal rupture or recurrence of vascular disorders despite optimal treatment. However, definite diagnosis in BD is made on the basis of clinical features, and early diagnosis is difficult. We report 2 patients whose first clinical symptoms were femoral-pseudoaneurysms. They received a diagnosis of VBD after surgery. The first patient was a 69-year-old man, who underwent autologous-vein patch closure of a perforated region in the left femoral artery. One year later, he had a pseudoaneurysm of the right profunda femoris artery, which was ligated. The second patient was a 51-year-old man, who underwent the interposition of the saphenous vein for defective artery due to left superficial femoral-pseudoaneurysm.
8.Surgical Treatment of Abdominal Aortic Aneurysm Coexisting with Coronary Artery Disease.
Susumu Manabe ; Masaaki Toyama ; Isamu Kawase ; Masanori Kato ; Tomoya Yoshizaki ; Haisong Wu ; Mitsuhisa Kotani
Japanese Journal of Cardiovascular Surgery 2003;32(1):1-5
This study was designed to evaluate the optimal surgical treatment strategy for abdominal aortic aneurysm (AAA) coexisting with coronary artery disease (CAD). Twenty-six patients (21 men and 5 women with a mean age of 72.6±3.7 years old) who required surgical treatment of both conditions were examined. Eleven patients underwent a one-stage operation. Four of them had on-pump CABG and 7, including 3 high-risk-patients, underwent off-pump CABG. There were no operative mortalities, but 3 patients had severe morbidity (respiratory failure, acute renal failure, pneumonia). Fifteen patients underwent a two-stage operation. None of them had rupture of the AAA during the interval between the two operations, but 2 patients with large AAA (more than 6cm in diameter) required emergency operation due to impending rupture of the AAA. There was no operative mortality, but one patient suffered acute renal failure. One-stage operation for low-risk patients seems to be a safe and reasonable strategy. One-stage operation for high-risk patients should be performed cautiously, and off-pump CABG is especially useful in such patients.
9.Multivariate survival analysis of the patients with recurrent endometrial cancer.
Tetsuji ODAGIRI ; Hidemichi WATARI ; Masayoshi HOSAKA ; Takashi MITAMURA ; Yousuke KONNO ; Tatsuya KATO ; Noriko KOBAYASHI ; Satoko SUDO ; Mahito TAKEDA ; Masanori KANEUCHI ; Noriaki SAKURAGI
Journal of Gynecologic Oncology 2011;22(1):3-8
OBJECTIVE: Few studies on the prognosticators of the patients with recurrent endometrial cancer after relapse have been reported in the literature. The aim of this study was to determine the prognosticators after relapse in patients with recurrent endometrial cancer who underwent primary complete cytoreductive surgery and adjuvant chemotherapy. METHODS: Thirty-five patients with recurrent endometrial cancer were included in this retrospective analysis. The prognostic significance of several clinicopathological factors including histologic type, risk for recurrence, time to relapse after primary surgery, number of relapse sites, site of relapse, treatment modality, and complete resection of recurrent tumors were evaluated. Survival analyses were performed by Kaplan-Meier curves and the log-rank test. Independent prognostic factors were determined by multivariate Cox regression analysis. RESULTS: Among the clinicopathological factors analyzed, histologic type (p=0.04), time to relapse after primary surgery (p=0.03), and the number of relapse sites (p=0.03) were significantly related to survival after relapse. Multivariate analysis revealed that time to relapse after primary surgery (hazard ratio, 6.8; p=0.004) and the number of relapse sites (hazard ratio, 11.1; p=0.002) were independent prognostic factors for survival after relapse. Survival after relapse could be stratified into three groups by the combination of two independent prognostic factors. CONCLUSION: We conclude that time to relapse after primary surgery, and the number of relapse sites were independent prognostic factors for survival after relapse in patients with recurrent endometrial cancer.
Endometrial Neoplasms
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Female
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Humans
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Multivariate Analysis
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Recurrence
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Retrospective Studies
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Survival Analysis*
10.Prediction of a Null Response to Pegylated Interferon alpha-2b Plus Ribavirin in Patients with High Viral Load Genotype 1b Hepatitis C.
Yuki WADA ; Hideyuki TAMAI ; Akira KAWASHIMA ; Naoki SHINGAKI ; Yoshiyuki MORI ; Masanori KAWAGUCHI ; Kosaku MORIBATA ; Hisanobu DEGUCHI ; Kazuki UEDA ; Izumi INOUE ; Takao MAEKITA ; Mikitaka IGUCHI ; Jun KATO ; Masao ICHINOSE
Gut and Liver 2014;8(4):421-427
BACKGROUND/AIMS: The present study aimed to clarify whether virological response within 2 weeks after therapy initiation can predict a null response to pegylated interferon alpha-2b plus ribavirin therapy in patients with high viral load genotype 1b hepatitis C. METHODS: The participants consisted of 72 patients with high viral load genotype 1b. The dynamics of viral load within 2 weeks were measured. RESULTS: Significant differences between null responders and nonnull responders were noted for interleukin (IL)-28B genotype, amino acid 70 substitution, alpha-fetoprotein, low-density lipoprotein cholesterol, hyaluronic acid, and viral response. The area under the curve (AUC) for the receiver operating characteristic curve of the hepatitis C virus (HCV) RNA level decline at 2 weeks (AUC=0.993) was the highest among the factors predicting the null response. When the cutoff value for the HCV RNA level decline at 2 weeks was set at 0.80 log, the sensitivity, specificity, positive predictive value, negative predictive value, and accuracy in predicting a null response were 82%, 96%, 82%, 96%, and 94%, respectively. In comparison, values for the non-TT and mutant type of amino acid 70 substitution were similar to those for HCV RNA level decline at 2 weeks. CONCLUSIONS: Virological response at 2 weeks or the combination of IL-28B and amino acid 70 substitution are accurate predictors of a null response.
Administration, Oral
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Adult
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Aged
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Antiviral Agents/*administration & dosage
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Area Under Curve
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Drug Therapy, Combination
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Female
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Genotype
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Hepatitis C, Chronic/*drug therapy/genetics
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Humans
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Injections, Subcutaneous
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Interferon-alpha/*administration & dosage
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Male
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Medication Adherence
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Polyethylene Glycols/*administration & dosage
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Prospective Studies
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RNA, Viral/metabolism
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Recombinant Proteins/administration & dosage
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Ribavirin/*administration & dosage
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Treatment Outcome
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Viral Load
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Young Adult