1.Three Cases of Right Atrial Separation for Chronic Atrial Fibrillation with Atrial Septal Defects.
Shinji Hirai ; Taijiro Sueda ; Katsuhiko Imai ; Kenji Okada ; Satoru Morita ; Kazumasa Orihashi ; Yuichiro Matsuura
Japanese Journal of Cardiovascular Surgery 1998;27(6):364-366
Atrial fibrillation is common in adults with atrial septal defect. A right atrial separation procedure was performed for the ablation of atrial fibrillation during the concomitant repair of atrial septal defect. The operation was performed under cardiopulmonary bypass. A Y-shape incision was made in the right atrium, followed by cryoablation of the tricuspid annulus and the atrial septum. After the operation, all three patients recovered and maintained a normal sinus rhythm during follow-up periods of 12, 4, and 1 months. This is a simple and effective procedure for the elimination of chronic atrial fibrillation associated with atrial septal defects in adults.
2.Totally Thoracoscopic Transatrial Thrombectomy in Two Patients with Left Ventricular Thrombus
Tadashi Umeno ; Hidenori Sako ; Tetsushi Takayama ; Masato Morita ; Hideyuki Tanaka ; Keiji Oka ; Shinji Miyamoto
Japanese Journal of Cardiovascular Surgery 2017;46(5):239-242
Left ventricular thrombus is a complication of left ventricular dysfunction, including acute myocardial infarction, cardiomyopathy, and severe valvular heart disease. Surgical removal should be considered when a thrombus is mobile, when thromboembolism occurs, and when cardiac function has the potential to improve. Two patients with left ventricular thrombus underwent totally thoracoscopic transatrial thrombectomy. A thrombus developed in the apex of the left ventricle after acute myocardial infarction in one patient (Case 1) and during treatment for congestive heart failure in the other (Case 2). The minimally-invasive transatrial approach requires no sternotomy or left ventriculotomy and is thus particularly beneficial for treating left ventricular dysfunction. Moreover, totally endoscopic surgery confers the advantage of a deep and narrow visual field. Therefore, we consider that this strategy is highly effective for treating left ventricular thrombus.
3.Ventricular Septal Perforation Repair Carried out on a Jehovah's Witness
Yuichi Morita ; Tadashi Tashiro ; Masahiro Ohsumi ; Yuta Sukehiro ; Shinji Kamiya ; Mau Amako ; Noritoshi Minematsu ; Hitoshi Matsumura ; Masaru Nishimi ; Hideichi Wada
Japanese Journal of Cardiovascular Surgery 2015;44(3):125-129
In a 63-year-old male patient Jehovah's witness, IABP was introduced due to acute myocardial infarction and cardiogenic shock, and PCI (BMS) was carried out to CAG #7 100%. Stent placement was carried out and his hemodynamics stabilized. A left-to-right shunt was observed upon carrying out LVG, so the patient was referred to our hospital for surgery purposes due to a diagnosis of ventricular septal perforation (VSP). Upon transferring the patient to hospital, his PA pressure elevated to 53 mmHg although the blood pressure was maintained, and no findings of right heart failure were observed. His respiratory condition was stable. Emergency surgery was considered, but the patient was taking Clopidogrel following PCI, and so VSP repair (extended endocardial repair) was carried out following 4 days discontinuation of Clopidogrel. Preoperative anemia was not observed ; however, postoperative hemorrhagic anemia improved due to iron preparation administration, and the patient was discharged from hospital 22 days following surgery without blood transfusion.
4.A Case of Primary Cardiac Angiosarcoma Associated with Cardiac Tamponade
Yuta Sukehiro ; Hideichi Wada ; Yuichi Morita ; Masayuki Shimizu ; Hiromitsu Teratani ; Masahiro Ohsumi ; Shinji Kamiya ; Noritoshi Minematsu ; Hitoshi Matsumura ; Tadashi Tashiro
Japanese Journal of Cardiovascular Surgery 2015;44(6):358-361
We report a rare case of primary cardiac angiosarcoma in the right atrium. A 47-year-old man was admitted to our hospital with cardiac tamponade. Echocardiography and computed tomography revealed a tumor in the right atrial cavity. We performed tumor resection to confirm the histological diagnosis, to prevent tumor embolism, and to increase the possibility of improving the prognosis. The tumor was resected with the right atrial wall and right pericardium. The right atrium was then reconstructed with a bovine pericardial patch. The pathological diagnosis was angiosarcoma. The patient survived only about 6 months after surgical resection, but there was no local recurrence. This report presents a very rare case of cardiac angiosarcoma associated with cardiac tamponade.
5.Can proximal Gastrectomy Be Justified for Advanced Adenocarcinoma of the Esophagogastric Junction?.
Yuya SATO ; Hitoshi KATAI ; Maiko ITO ; Masahiro YURA ; Sho OTSUKI ; Yukinori YAMAGATA ; Shinji MORITA
Journal of Gastric Cancer 2018;18(4):339-347
PURPOSE: To evaluate the status of number 3b lymph node (LN) station in patients with adenocarcinoma of the esophagogastric junction (AEG) and to investigate the optimal indications for radical proximal gastrectomy (PG) for AEG. MATERIALS AND METHODS: Data of 51 patients with clinically advanced Siewert types II and III AEG who underwent total gastrectomy (TG) between April 2010 and July 2017 were reviewed. The proportion of metastatic LNs at each LN station was examined. Number 3 LN station was separately classified into number 3a and number 3b. The risk factors for number 3b LN metastasis and the clinicopathological features of number 3b-positive AEG patients were investigated. RESULTS: The incidences of LN metastasis were the highest in number 1 (47.1%), followed by number 2 (23.5%), number 3a (39.2%), and number 7 (23.5%) LN stations. LN metastasis in number 3b LN station was detected in 4 patients (7.8%). A gastric invasion length of more than 40 mm was a significant risk factor for number 3b LN metastasis. All 4 patients with number 3b-positive AEG had advanced cancer with a gastric invasion length of more than 40 mm. The 5-year survival rate of patients with a gastric invasion length of more than 40 mm was 50.0%. CONCLUSIONS: Radical PG may be indicated for patients with AEG with gastric invasion length of less than 40 mm.
Adenocarcinoma*
;
Esophagogastric Junction*
;
Gastrectomy*
;
Humans
;
Incidence
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Lymph Nodes
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Neoplasm Metastasis
;
Risk Factors
;
Survival Rate
6.Non-Randomized Confirmatory Trial of Laparoscopy-Assisted Total Gastrectomy and Proximal Gastrectomy with Nodal Dissection for Clinical Stage I Gastric Cancer: Japan Clinical Oncology Group Study JCOG1401.
Kozo KATAOKA ; Hitoshi KATAI ; Junki MIZUSAWA ; Hiroshi KATAYAMA ; Kenichi NAKAMURA ; Shinji MORITA ; Takaki YOSHIKAWA ; Seiji ITO ; Takahiro KINOSHITA ; Takeo FUKAGAWA ; Mitsuru SASAKO
Journal of Gastric Cancer 2016;16(2):93-97
Several prospective studies on laparoscopy-assisted distal gastrectomy for early gastric cancer have been initiated, but no prospective study evaluating laparoscopy-assisted total gastrectomy or laparoscopy-assisted proximal gastrectomy has been completed to date. A non-randomized confirmatory trial was commenced in April 2015 to evaluate the safety of laparoscopy-assisted total gastrectomy and laparoscopy-assisted proximal gastrectomy for clinical stage I gastric cancer. A total of 245 patients will be accrued from 42 Japanese institutions over 3 years. The primary endpoint is the proportion of patients with anastomotic leakage. The secondary endpoints are overall survival, relapse-free survival, proportion of patients with completed laparoscopy-assisted total gastrectomy or laparoscopy-assisted proximal gastrectomy, proportion of patients with conversion to open surgery, adverse events, and short-term clinical outcomes. The UMIN Clinical Trials Registry number is UMIN000017155.
Anastomotic Leak
;
Asian Continental Ancestry Group
;
Conversion to Open Surgery
;
Gastrectomy*
;
Humans
;
Japan*
;
Laparoscopy
;
Medical Oncology*
;
Non-Randomized Controlled Trials as Topic
;
Prospective Studies
;
Stomach Neoplasms*
7.Redo Aortic Valve Replacement through Right Anterior Mini-thoracotomy 15 Years after Aortic Valve Replacement via Partial Sternotomy : A Case Report
Takafumi ABE ; Hidenori SAKO ; Masato MORITA ; Tetsushi TAKAYAMA ; Hideyuki TANAKA ; Yuriko ABE ; Shinji MIYAMOTO
Japanese Journal of Cardiovascular Surgery 2019;48(4):250-253
A 65-year-old man with a history of severe aortic valve regurgitation had undergone aortic valve replacement (AVR) via partial upper hemisternotomy at the age of 50 years. At that time, bioprosthetic valve was implanted. Fifteen years after the valve implantation, he presented with palpitations and chest tightness. Examination revealed bioprosthetic valve failure with consequent severe aortic valve regurgitation. Redo AVR via right anterior mini-thoracotomy was decided as the treatment strategy, and the procedure was successfully completed without complications. The patient underwent extubation on the day of the operation. His postoperative course was unremarkable, and he was discharged 13 days postoperatively. In this case, the patient had previously undergone partial upper hemisternotomy (classified as a minimally invasive cardiac surgery [MICS]) and showed only few adhesions in the pericardium, suggesting that MICS could be beneficial in cases involving re-operation.
8.Dembo polymerase chain reaction technique for detection of bovine abortion, diarrhea, and respiratory disease complex infectious agents in potential vectors and reservoirs
Sayed Samim RAHPAYA ; Shinobu TSUCHIAKA ; Mai KISHIMOTO ; Mami OBA ; Yukie KATAYAMA ; Yuka NUNOMURA ; Saki KOKAWA ; Takashi KIMURA ; Atsushi KOBAYASHI ; Yumi KIRINO ; Tamaki OKABAYASHI ; Nariaki NONAKA ; Hirohisa MEKATA ; Hiroshi AOKI ; Mai SHIOKAWA ; Moeko UMETSU ; Tatsushi MORITA ; Ayako HASEBE ; Keiko OTSU ; Tetsuo ASAI ; Tomohiro YAMAGUCHI ; Shinji MAKINO ; Yoshiteru MURATA ; Ahmad Jan ABI ; Tsutomu OMATSU ; Tetsuya MIZUTANI
Journal of Veterinary Science 2018;19(3):350-357
Bovine abortion, diarrhea, and respiratory disease complexes, caused by infectious agents, result in high and significant economic losses for the cattle industry. These pathogens are likely transmitted by various vectors and reservoirs including insects, birds, and rodents. However, experimental data supporting this possibility are scarce. We collected 117 samples and screened them for 44 bovine abortive, diarrheal, and respiratory disease complex pathogens by using Dembo polymerase chain reaction (PCR), which is based on TaqMan real-time PCR. Fifty-seven samples were positive for at least one pathogen, including bovine viral diarrhea virus, bovine enterovirus, Salmonella enterica ser. Dublin, Salmonella enterica ser. Typhimurium, and Neospora caninum; some samples were positive for multiple pathogens. Bovine viral diarrhea virus and bovine enterovirus were the most frequently detected pathogens, especially in flies, suggesting an important role of flies in the transmission of these viruses. Additionally, we detected the N. caninum genome from a cockroach sample for the first time. Our data suggest that insects (particularly flies), birds, and rodents are potential vectors and reservoirs of abortion, diarrhea, and respiratory infectious agents, and that they may transmit more than one pathogen at the same time.
Animals
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Birds
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Cattle
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Cockroaches
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Diarrhea Viruses, Bovine Viral
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Diarrhea
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Diptera
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Disease Reservoirs
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Disease Vectors
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Enterovirus
;
Enterovirus, Bovine
;
Genome
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Insects
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Neospora
;
Polymerase Chain Reaction
;
Real-Time Polymerase Chain Reaction
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Rodentia
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Salmonella enterica
;
Virulence Factors