1.A Case of Double Patch Closure for Left Ventricular Pseudoaneurysm after Myocardial Infarction
Haruki NIWANO ; Yuji NAITO ; Hiroshi SUGIKI ; Tatsuya MURAKAMI
Japanese Journal of Cardiovascular Surgery 2025;54(1):5-8
A 67-year-old male was referred to our department for surgical treatment of a left ventricular mass after myocardial infarction. The left ventricular aneurysm was 50×20 mm and the papillary muscles were close to each other. To avoid displacement of the papillary muscles and its effect on the mitral valve, a double-patch closure was performed. A bovine pericardial patch was placed on the endocardial side and a Dacron patch on the epicardial side, and fibrin glue was injected between the two patches. Mitral valvuloplasty and coronary artery bypass grafting were also performed, and the patient had an uncomplicated postoperative course and was discharged home on the 27th postoperative day. Histopathological findings showed no myocardial cells in the wall of the mass, and a diagnosis of pseudoaneurysm was made. Double-patch closure is considered effective for left ventricular masses with a large opening and close proximity to the papillary muscle, as in this case.
2.A Case of Mitral Stenosis due to Pannus Formation after Mitral Valve Plasty
Tatsuya MIYANAGA ; Ichiro MATSUMARU ; Shun NAKAJI ; Kazuki HISATOMI ; Yuichi TASAKI ; Akihiko TANIGAWA ; Shunsuke TAGUCHI ; Yutaro RYU ; Yugo MURAKAMI ; Takashi MIURA
Japanese Journal of Cardiovascular Surgery 2024;53(4):203-207
A 73-year-old man had been followed up in our hospital after surgery for mitral regurgitation. At the age of 67, he underwent mitral valve plasty through a right mini-thoracotomy approach for atrial functional mitral regurgitation at our hospital. The mean trans-mitral pressure gradient was 5 mmHg after surgery but no heart failure symptoms were observed. At the age of 72, he began to notice fatigue during exertion. Transthoracic echocardiography revealed that the mitral valve regurgitation was controlled to a trace level, but the mean trans-mitral pressure gradient increased to 10 mmHg. Transesophageal echocardiography and contrast-enhanced cardiac computed tomography revealed the restricted opening of the mitral valve and pannus formation around the prosthetic ring. We thus diagnosed mitral stenosis due to pannus overgrowth. He underwent pannus excision and removal of the artificial ring. Postoperative echocardiography revealed that the mean trans-mitral pressure gradient was reduced to 3 mmHg and no residual mitral regurgitation was observed. He was discharged on postoperative day 11 with no major symptoms. He was in New York Heart Association functional class I at 1 year after the surgery and continues to be an outpatient.
3.Injury profile in male collegiate rugby union players
Ryo OGAKI ; Ayane OGURA ; Hyunjae KIM ; Taiki MURAKAMI ; Tatsuya SHIMASAKI ; Masahiro TAKEMURA
Japanese Journal of Physical Fitness and Sports Medicine 2023;72(3):227-241
The purpose of this study was to describe the incidence, severity, and burden of injuries in Japanese male collegiate rugby union players. Initially, 170 male collegiate rugby union players from one university club were registered in this epidemiological surveillance study. The occurrence of injuries was recorded by a team medical staff during the 2017–2021 playing seasons. The incidence of injuries was 6.87 injuries/1000 h. This incidence was significantly higher during matches (100.37 injuries/1000 h) than that during training (3.63 injuries/1000 h). The severity of injuries was 31.0 days, and there were no significant differences between matches and training, or forwards and backs. The burden of injuries was 213.1 days/1000 h. This burden was significantly higher during matches (2887.8 days/1000 h) compared to training (120.1 days/1000 h). Matches had higher incidence of ankle sprain/ligament injuries (15.80 injuries/1000 h) and concussion (15.36 injuries/1000 h). The most common injury site was the ankle (1.24 injuries/1000 h). However, the greatest severity and burden were observed for knee injuries (severity: 59.1 days, burden: 48.6 days/1000 h). Furthermore, the greatest burden of injury type was knee sprain/ligament injuries (39.4 days/1000 h). In addition, the incidence of acromioclavicular joint injury was significantly higher in forwards, whereas hamstring strain was significantly higher in backs. The common injury mechanisms identified were being tackled (16.0%) and tackling (14.7%), followed by overuse (12.1%). In order to improve the player welfare of the Japanese collegiate rugby union players, it is necessary to work on the prevention strategy considering the injury profile.
4.Phase I/II prospective clinical trial for the hybrid of intracavitary and interstitial brachytherapy for locally advanced uterine cervical cancer
Naoya MURAKAMI ; Miho WATANABE ; Takashi UNO ; Shuhei SEKII ; Kayoko TSUJINO ; Takahiro KASAMATSU ; Yumiko MACHITORI ; Tomomi AOSHIKA ; Shingo KATO ; Hisako HIROWATARI ; Yuko KANEYASU ; Tomio NAKAGAWA ; Hitoshi IKUSHIMA ; Ken ANDO ; Masumi MURATA ; Ken YOSHIDA ; Hiroto YOSHIOKA ; Kazutoshi MURATA ; Tatsuya OHNO ; Noriyuki OKONOGI ; Anneyuko I. SAITO ; Mayumi ICHIKAWA ; Takahito OKUDA ; Keisuke TSUCHIDA ; Hideyuki SAKURAI ; Ryoichi YOSHIMURA ; Yasuo YOSHIOKA ; Atsunori YOROZU ; Naonobu KUNITAKE ; Hiroyuki OKAMOTO ; Koji INABA ; Tomoyasu KATO ; Hiroshi IGAKI ; Jun ITAMI
Journal of Gynecologic Oncology 2023;34(3):e24-
Objective:
The purposes of this trial were to demonstrate the feasibility and effectiveness of the hybrid of intracavitary and interstitial brachytherapy (HBT) for locally advanced cervical cancer patients in the phase I/II prospective clinical trial.
Methods:
Patients with FIGO stage IB2-IVA uterine cervical cancer pretreatment width of which was ≥5 cm measured by magnetic resonance imaging were eligible for this clinical trial. The protocol therapy included 30–30.6 Gy in 15–17 fractions of whole pelvic radiotherapy concurrent with weekly CDDP, followed by 24 Gy in 4 fractions of HBT and pelvic radiotherapy with a central shield up to 50–50.4 Gy in 25–28 fractions. The primary endpoint of phase II part was 2-year pelvic progression-free survival (PPFS) rate higher than historical control of 64%.
Results:
Between October 2015 and October 2019, 73 patients were enrolled in the initial registration and 52 patients proceeded to the secondary registration. With the median follow-up period of 37.3 months (range, 13.9–52.9 months), the 2- PPFS was 80.7% (90% confidence interval [CI]=69.7%–88%). Because the lower range of 90% CI of 2-year PPFS was 69.7%, which was higher than the historical control ICBT data of 64%, therefore, the primary endpoint of this study was met.
Conclusion
The effectiveness of HBT were demonstrated by a prospective clinical study. Because the dose goal determined in the protocol was lower than 85 Gy, there is room in improvement for local control. A higher dose might have been needed for tumors with poor responses.
5.Rectosigmoid Localization of Radiopaque Markers for Identifying Defecation Disorders in Patients With Chronic Constipation: A Retrospective Cohort Study
Tatsuya ABE ; Masao KUNIMOTO ; Yoshikazu HACHIRO ; Kei OHARA ; Mitsuhiro INAGAKI ; Masanori MURAKAMI
Journal of Neurogastroenterology and Motility 2021;27(3):419-425
Background/Aims:
Defecation disorders (DD) are part of the spectrum of chronic constipation with outlet obstruction. Although anorectal physiologic tests are required for the diagnosis of DD, these tests are not available in many institutions. This study aims to investigate the predictivity of DD using rectosigmoid localization of radiopaque markers in a colonic transit study.
Methods:
A total of 169 patients with refractory constipation with a mean age of 67 years were studied. All patients underwent anorectal manometry, a balloon expulsion test, and a colonic transit study. Barium defecography was performed if needed. The relationship between DD diagnosed by these anorectal tests and the rectosigmoid accumulation of markers was examined.
Results:
Seventy-nine (46.7%) patients were identified to have DD based on anorectal test combinations. Rectosigmoid accumulation of markers was observed in 39 (23.1%) patients. The sensitivity and positive predictive value of rectosigmoid accumulation for identifying DD were 31.6% and 64.1%, respectively. Rectosigmoid accumulation provided poor discrimination of DD from normal transit constipation, at a specificity of 82.1% but with a sensitivity of only 10.6%. In discriminating DD from slow transit constipation, rectosigmoid accumulation was found to be useful with a positive likelihood ratio of 5.3.
Conclusions
Rectosigmoid accumulation of markers can differentiate DD from slow transit constipation. However, non-rectosigmoid accumulation does not exclude the presence of DD.
6.Rectosigmoid Localization of Radiopaque Markers for Identifying Defecation Disorders in Patients With Chronic Constipation: A Retrospective Cohort Study
Tatsuya ABE ; Masao KUNIMOTO ; Yoshikazu HACHIRO ; Kei OHARA ; Mitsuhiro INAGAKI ; Masanori MURAKAMI
Journal of Neurogastroenterology and Motility 2021;27(3):419-425
Background/Aims:
Defecation disorders (DD) are part of the spectrum of chronic constipation with outlet obstruction. Although anorectal physiologic tests are required for the diagnosis of DD, these tests are not available in many institutions. This study aims to investigate the predictivity of DD using rectosigmoid localization of radiopaque markers in a colonic transit study.
Methods:
A total of 169 patients with refractory constipation with a mean age of 67 years were studied. All patients underwent anorectal manometry, a balloon expulsion test, and a colonic transit study. Barium defecography was performed if needed. The relationship between DD diagnosed by these anorectal tests and the rectosigmoid accumulation of markers was examined.
Results:
Seventy-nine (46.7%) patients were identified to have DD based on anorectal test combinations. Rectosigmoid accumulation of markers was observed in 39 (23.1%) patients. The sensitivity and positive predictive value of rectosigmoid accumulation for identifying DD were 31.6% and 64.1%, respectively. Rectosigmoid accumulation provided poor discrimination of DD from normal transit constipation, at a specificity of 82.1% but with a sensitivity of only 10.6%. In discriminating DD from slow transit constipation, rectosigmoid accumulation was found to be useful with a positive likelihood ratio of 5.3.
Conclusions
Rectosigmoid accumulation of markers can differentiate DD from slow transit constipation. However, non-rectosigmoid accumulation does not exclude the presence of DD.
7.A Case of Left Ventricular-Right Atrial Communication Resulting from Infective Endocarditis
Daisuke Mori ; Dai Araki ; Yutaka Makino ; Tatsuya Murakami
Japanese Journal of Cardiovascular Surgery 2015;44(1):50-52
We report a case of surgical repair of acquired left ventricular-right atrial communication resulting from infective endocarditis. A 70-year-old man with aortic regurgitation due to infective endocarditis was referred to our hospital because of congestive heart failure. Preoperative transthoracic echocardiography showed severe aortic regurgitation and left ventricular-right atrial shunt flow. He underwent surgery following intensive antibiotic therapy. The fistula was located at the atrioventricular membranous septum. The communication site from the left ventricular view it was below the commissure between the left and the non-coronary cusps, and from the right atrial view it was above the tricuspid annulus of the septal leaflet. The fistula was closed with autologous pericardial patch from the aortotomy and a mattress suture from the right atriotomy. Aortic valve replacement was performed simultaneously. The postoperative course was uneventful. He was in sinus rhythm all the time. It is important to discuss surgical procedure preoperatively with precise echocardiographic examination.
8.Development of the Biological Prognostic Score in patients with advanced cancer and prospective verification of its external validity: Comparison with the Palliative Prognostic Index
Masahide Omichi ; Masahiro Narita ; Kesashi Aonuma ; Yasuhiro Munakata ; Naoki Yamamoto ; Hironobu Sato ; Maki Murakami ; Akira Takahashi ; Tatsuya Morita ; Norio Sugimoto
Palliative Care Research 2015;10(4):251-258
Objective: To develop and confirm the validity of a Biological Prognostic Score using only blood test results for prediction of prognosis in patients with advanced cancer. Methods: We conducted parametric survival time analysis using blood test results, age, sex, and primary diagnosis as independent variables, and event of death as a dependent variable, among patients in a palliative care unit (a development cohort). We then developed the Biological Prognostic Score (BPS). Thereafter, we confirmed the accuracy of the BPS and the Palliative Prognostic Index (PPI) prospectively among patients, who withdrew or withheld further curative or life-prolonging therapies, in other facilities (a validation cohort). Results: We developed the BPS, which consists of cholinesterase, blood urea nitrogen, and total iron-binding capacity, from 122 patients in a development cohort. We then examined 195 patients in a validation cohort and found that the area under the receiver operating characteristic curve for 1-9 week survival prediction was BPS=0.76-0.86 and PPI=0.69-0.73. Discussion: Our results suggest that the BPS was valid. It will be necessary to perform further examinations in multiple facilities and to explore more generalized parameters that could replace total iron-binding capacity in our BPS.
9.Studies on the role of palliative care and home health care for cancer patients at the time of disaster based on the interview survey of healthcare in the affected coastal region of the East Japan Earthquake
Kikuko Kanno ; Hiroya Kinoshita ; Tatsuya Morita ; Kazuki Sato ; Megumi Shimizu ; Shouko Akiyama ; Masahiko Murakami ; Mitsunori Miyashita
Palliative Care Research 2014;9(4):131-139
East Japan earthquake after cancer is not little survey about patients with palliative care and home health care. In this study, the cancer during an earthquake which aims to make recommendations for future large-scale disasters, and investigation of actual conditions of palliative care and home health care system or manual for basic data. Healthcare in the stricken coastal region 53 conducted semi-structured interviews. Results than cancer healthcare for patients with palliative care and home health care experience is 【cancer providing healthcare to patients with disabilities】【patient lost during the tsunami damage and evacuation oral medication continued failure】【failure of the medical provision of in-home patients by disruption of lifeline】【regional health providers and backward medical assistance and emergency medical group with disabilities】【mental care to medical staff】【disorder of the nuclear power plant accident community health providers】 of 6 organized by category. Be prepared for major disasters, disasters when cancer patients with palliative care and home care issues and how to respond it became evident.
10.Coronary Artery Bypass Grafting in a Patient with Situs Inversus Totalis : A Case Report and Review of the Literature
Koji Sato ; Tatsuya Murakami ; Yutaka Makino ; Takashi Sugiki
Japanese Journal of Cardiovascular Surgery 2012;41(1):33-37
A 70-year-old man with dextrocardia with situs inversus, presented to our hospital complaining of chest pain. ECG showed ST elevations in leads II, III and aVf , and ST depressions in leads V3 through V6. Blood tests showed creatinine kinase elevation. He underwent coronary angiography, which revealed obstruction of the anatomical right coronary artery and we diagnosed acute inferior myocardial infarction. However, the anatomical left coronary artery was not clearly identifiable because of its anomalous origin. He was transferred to our intensive care unit and intra-aortic balloon pumping was initiated. Coronary 3D-CT was then performed to obtain an anatomical overview of the coronary artery system. This enabled a second coronary angiography which showed obstruction of the left anterior descending artery and stenosis of the left main trunk in the first diagonal branch and the ramus intermedius branch. Coronary artery bypass grafting surgery (CABG) was indicated. He underwent conventional quintuple CABG using the right internal thoracic artery and saphenous vein grafts. Preoperatively we made digital mirror images of the original coronary angiographic images to clarify his coronary artery anatomy. During surgery, the main surgeon continuously stood on the patient's left side except when opening and closing the chest, which enabled us to perform CABG. The postoperative course was uneventful. CABG in a patient with situs inversus totalis is very rare. We present this case with a review of the relevant literature.


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