1.A Case of Aortic Valve Replacement with Valve Ring Enlargement for Future TAV in SAV
Mitsukuni NAKAHARA ; Kenji IINO ; Yoshitaka YAMAMOTO ; Masaki KITAZAWA ; Hiroki NAKABORI ; Hideyasu UEDA ; Yukiko YAMADA ; Akira MURATA ; Hirofumi TAKEMURA
Japanese Journal of Cardiovascular Surgery 2024;53(3):114-118
When performing aortic valve replacement in young patients, mechanical valves are recommended due to their durability. However, because mechanical valves require lifelong use of warfarin and carry risks such as easy bleeding, bioprosthetic valve replacement may be performed in some cases even in young patients. In this report, we describe a case of a patient who underwent bioprosthetic aortic valve replacement with aortic annular enlargement in anticipation of TAV in SAV and had a good postoperative course. The patient is a 51-year-old male. He was referred to our hospital for surgical treatment of severe aortic stenosis. The patient strongly preferred a bioprosthetic valve due to the disadvantage of taking warfarin. Therefore, we considered the possibility of TAV in SAV due to his young age, and decided to perform aortic annular enlargement if necessary. Intraoperatively, after resection and decalcification of the valve, a sizer was inserted, but the 19 mm sizer could not pass through, so we decided to perform aortic annular enlargement. Aortic annular enlargement was performed by suturing a Dacron patch and implantation of a 23 mm bioprosthetic valve. The patient had no major postoperative problems and was discharged home on the 14th day after surgery. In order to avoid PPM in the future when TAVI is performed, aortic annular enlargement should be considered in young patients undergoing aortic valve replacement using a bioprosthetic valve if TAV in SAV is considered to be difficult.
2.Analysis of Data from Reports on Medical Device Faults in Drug-Device Combinations in Japan
Yasunori NAGANO ; Yuki YAMAMOTO ; Akira INOUE ; Masaki FUJIEDA
Japanese Journal of Drug Informatics 2024;25(4):195-203
Objective: Analysis of data from reports of medical device faults in drug-device combinations (DDCs) can prevent adverse events caused by errors and lead to improvements. However, there is a paucity of published articles reporting the analysis of data on faults in DDCs. The aim of this study was to analyze data of faults in these medical devices in Japan.Methods: The review summarized information from the Pharmaceuticals and Medical Devices Agency data on “case reports of suspected failures of the mechanical and instrumental parts of DDCs” reported between 25 November 2014 and 31 July 2022. Information was collected from public documents on “year reported”, “age”, “gender”, “trade name”, “generic name”, “mechanical device part name”, “mechanical device part failure status”, and “hazard” and “outcome”.Results: There were approximately 1,300 reports of medical device faults in DDCs over the study period, with the number increasing year by year. Five device parts (insulin pen injectors, pre-filled syringes, drug and vaccine injectors, disposable hypodermic needles, and intrauterine contraceptive devices) accounted for 90% of the reports. We found that there was a considerable amount of missing data on reportable items such as age and gender of the patient. Our analysis also showed that 90% of the medical device fault reports involving DDCs were related to malfunction or breakage.Conclusion: In order to use DDCs more safely and effectively it is important to review reports and analyse data of faults in these devices.
3.A Case of Right Pulmonary Artery-Left Atrial Communication with Brain Abscess
Noburo OHASHI ; Shuji CHINO ; Masaki KOMATSU ; Hajime ICHIMURA ; Takateru YAMAMOTO ; Ko NAKAHARA ; Megumi FUKE ; Yuko WADA ; Tatsuichiro SETO
Japanese Journal of Cardiovascular Surgery 2024;53(1):6-9
Right pulmonary artery-left atrial communication is a rare congenital heart disease that is usually diagnosed before adulthood, and its main symptoms are cyanosis and dyspnea on exertion. We report a 51-year-old man with a large aneurysm of the right pulmonary artery and left atrial communication, which was diagnosed after a brain abscess. We are concerned that simple ligation alone may cause embolism, so we report on the use of an autologous pericardial patch to close the opening to the left atrium.
4.Association between Aortic Calcification Burden and the Severity of Erectile Dysfunction in Men Undergoing Dialysis: A Cross-Sectional Study
Naoki FUJITA ; Shingo HATAKEYAMA ; Masaki MOMOTA ; Yuki TOBISAWA ; Tohru YONEYAMA ; Teppei OKAMOTO ; Hayato YAMAMOTO ; Takahiro YONEYAMA ; Yasuhiro HASHIMOTO ; Kazuaki YOSHIKAWA ; Chikara OHYAMA
The World Journal of Men's Health 2023;41(2):373-381
Purpose:
Accelerated atherosclerosis is a major complication in patients with end-stage renal disease and it plays an important role in the pathogenesis of erectile dysfunction (ED). However, the association between aortic calcification burden and the severity of ED remains unclear. The aim of the present study was to investigate this association in men undergoing dialysis.
Materials and Methods:
This cross-sectional study included 71 men undergoing peritoneal dialysis and/or hemodialysis between July 2016 and May 2018 at Mutsu General Hospital. ED was assessed with the Sexual Health Inventory for Men (SHIM). Patients were divided into the mild/moderate (SHIM score ≥8) and severe ED groups (SHIM score ≤7). Aortic calcification index (ACI) was examined as a clinical indicator of abdominal aortic calcification. Multivariable logistic regression analysis was performed to identify the significant factors associated with severe ED.
Results:
The median age of the study participants was 64 years; all had ED, with 64.8% having severe ED. In the multivariable analyses, a slight association was observed between ankle-brachial index and severe ED (odds ratio [OR], 0.058; p=0.072), whereas ACI was significantly associated with severe ED (OR, 1.022; p=0.022).
Conclusions
Aortic calcification burden was independently associated with severe ED.
5.Can Erectile Dysfunction Severity Predict Major Adverse Cardiovascular Events in Men Undergoing Dialysis? A Prospective Cohort Study
Naoki FUJITA ; Masaki MOMOTA ; Yusuke OZAKI ; Yuki TOBISAWA ; Tohru YONEYAMA ; Teppei OKAMOTO ; Hayato YAMAMOTO ; Shingo HATAKEYAMA ; Takahiro YONEYAMA ; Yasuhiro HASHIMOTO ; Kazuaki YOSHIKAWA ; Chikara OHYAMA
The World Journal of Men's Health 2023;41(4):900-908
Purpose:
To evaluate the impact of severe erectile dysfunction (ED) on future major adverse cardiovascular events (MACE) in men on dialysis.
Materials and Methods:
This prospective cohort study included 71 men on dialysis. ED was assessed using the Sexual Health Inventory for Men (SHIM). Men were divided into the mild/moderate ED (SHIM score ≥8) and severe ED (SHIM score ≤7) groups. The primary endpoint was MACE-free survival. MACE was a composite of myocardial infarction, cardiovascular death, and stroke. The secondary endpoints were cardiac event-free survival and overall survival (OS). Moreover, the predictive abilities of severe ED for 5-year MACE, 5-year cardiac events, and 5-year overall mortality were evaluated.
Results:
The median age and follow-up period of the included men were 64 years and 58 months, respectively. The median SHIM score was 4.0; all had a degree of ED, and 64.7% had severe ED. In the background-adjusted multivariable analyses, severe ED was not significantly associated with shorter MACE-free survival (hazard ratio [HR], 1.890; 95% confidence interval [CI], 0.533–6.706; p=0.324), cardiac event-free survival (HR, 2.081; 95% CI, 0.687–6.304; p=0.195), and OS (HR, 0.817; 95% CI, 0.358–1.863; p=0.630). Severe ED did not significantly improve the predictive abilities for 5-year MACE, 5-year cardiac events, and 5-year overall mortality (p=0.110, p=0.101, and p=0.740, respectively).
Conclusions
ED severity was not associated with shorter MACE-free survival, cardiac event-free survival, or OS, and ED severity could not improve the predictive abilities for these outcomes in men undergoing dialysis.
6.Chronic Expanding Hematoma with Constrictive Pericarditis
Masaki KOMATSU ; Kazuki NAITO ; Shuji CHINO ; Haruki TANAKA ; Hajime ICHIMURA ; Takateru YAMAMOTO ; Kou NAKAHARA ; Megumi FUKE ; Yuko WADA ; Tatsuichiro SETO
Japanese Journal of Cardiovascular Surgery 2022;51(2):105-109
We report the successful treatment of a rare case of chronic expanding hematoma and visceral pericardium thickening constrictive pericarditis with no history of trauma or surgery. A 70-year-old woman, who had no history of trauma or surgery was admitted for exertional dyspnea. An echocardiographic study demonstrated a mass located anterior to the right ventricle that severely compressed the right ventricle toward the ventricular septum. Enhanced chest computed tomography demonstrated pericardial calcification and a 125-mm heterogeneous mass in the middle mediastinum. A mosaic pattern was seen on T1, T2-weighted magnetic resonance imaging. Surgical resection of the mass and removal of the visceral pericardium were planned to treat heart failure and to confirm the diagnosis of the mass. The mass was old degenerated coagula. Histopathological examination confirmed the diagnosis of chronic expanding hematoma. The postoperative course was uneventful. There has been no sign of recurrence 19 months after the operation.
7.Deaths of Two Patients with Coronavirus Disease Who Received Pain Control by a Palliative Care Team
Eiichiro YAMAMOTO ; Masaki HIGUCHI ; Yujiro INOUE ; Namiko AOYAMA ; Takeshi HIROHASHI
Palliative Care Research 2021;16(2):191-196
Introduction: We report two cases of infection with the severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) in patients treated by the palliative care team during the first wave of the coronavirus disease 2019 (COVID-19) pandemic. These patients were receiving interventions for pain control, but subsequently contracted COVID-19, leading to their deaths. Cases: Two patients with hematopoietic tumors had been taking hydromorphone tablets for pain control. Both patients contracted COVID-19 during their clinical course, and displayed happy hypoxia, a typical complication of SARS-CoV-2 infection. Although the rapid systemic deterioration of the patients' conditions were recognized, there were no complaints of breathing difficulties. We attempted to alleviate the symptoms by adjusting the medications, including changes to the administration route. Discussion: When a patient receiving palliative care is infected with SARS-CoV-2, the presence of an underlying condition may cause a rapid deterioration, and opioid titration may be required depending on the characteristics of the symptoms.
8.A Case of Bilateral Coronary Ostial Aneurysms and an Aortic Root Pseudoaneurysm after a Modified Bentall Procedure with the Button Technique
Masaki KOMATSU ; Shuji CHINO ; Toru MIKOSHIBA ; Haruki TANAKA ; Hajime ICHIMURA ; Takateru YAMAMOTO ; Noburo OHASHI ; Megumi FUKE ; Yuko WADA ; Tatsuichiro SETO
Japanese Journal of Cardiovascular Surgery 2020;49(4):210-213
A 62-year-old man with Marfan syndrome had a modified Bentall procedure and total arch replacement for annuloaortic ectasia, aortic insufficiency and thoracic aortic aneurysm fifteen years ago at another hospital. A follow-up CT revealed bilateral coronary artery aneurysms and an aortic root pseudoaneurysm, and thus he was referred to our hospital. The previous prosthetic valve was removed, followed by the re-Bentall procedure. Coronary artery aneurysms were resected and consequently coronary arteries were reconstructed directly. Although the shortcoming of the Bentall procedure was pseudoaneurysm, the outcomes of the modified Bentall procedure have shown some improvements. However, as there is still a high risk of postoperative complication in connective tissue diseases, long-term follow-up is required.
9.Three Cases of Depression sequentially Occurred at the Same Workplace; Effectively Treated with Yokukansankachimpihange that was Taken into Account Emotional Contagion
Masaki SONODA ; Shohaku YAMAMOTO ; Atsuko TAKATA ; Manabu KIKUTI ; Daisuke TAMIYA ; Riouzi ENDO ; Takashi ITO
Kampo Medicine 2018;69(2):155-160
We report three cases of depression, which were effectively treated with oriental medicine. All three patients were employees at the same workplace, which had a total of 17 employees. Case 1 was a 46-year-old, who had worked at the company for 20 years and complained of depression and insomnia. Case 2 was a 28-year-old woman, who had worked at the company for 9 years and complained of nausea and mood disturbance. Case 3 was a 41-year-old man, who had worked at the company for 15 years and complained of restlessness, insomnia, and depression. The three patients were treated with yokukansan and yokukansankachimpihange, which are Kampo formulations, and subsequently showed improvements in symptoms. In choosing prescriptions for these patients, we considered the fact that all three patients worked in the same workplace. Yokukansan is traditionally co-administered to mother and her child. Furthermore, Hoffman (1984) proposed the system of sharing emotional contagion in the field of neuropsychiatry. When considered holistically, medication shared by mother and child is an empirical treatment taking into account emotional contagion. This treatment is also considered applicable within a single community, such as the one in the same workplace. Shared medication that takes into account emotional contagion within the same workplace, could be useful as it was for our patients.
10.Descending Aortic Replacement for Pseudoaneurysm Following Total Arch Replacement with Proximal Endoclamping Using an Occlusion Balloon
Nobuyuki HIROSE ; Hideaki NISHIMORI ; Takashi FUKUTOMI ; Masaki YAMAMOTO ; Kazuki KIHARA ; Miwa TASHIRO ; Kazumasa ORIHASHI
Japanese Journal of Cardiovascular Surgery 2018;47(4):187-191
An 83-year-old man who had undergone aortic arch repair using the elephant trunk technique in addition to abdominal aorta repair required surgical intervention for a pseudoaneurysm at the distal anastomosis of the aortic arch graft. Due to marked adhesion around the aneurysm, aortic cross-clamping was not feasible. Thus, under femoro-femoral partial bypass, the arch prosthesis was endoclamped using an aortic occlusion balloon inserted through the left femoral artery into the aortic arch graft and through the elephant trunk, guided by fluoroscopy and transesophageal echocardiography. This allowed descending aorta replacement with minimal bleeding. His postoperative course was uneventful. This technique enabled safe and bloodless clamping of the proximal portion of the aortic arch graft.


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