1.A Case of Stanford Type A Dissecting Aneurysm with Reinforcement of Suture Line by Glutaraldehyde Solution. Effect and Side Effect.
Atsushi AMANO ; Masaaki TOYAMA ; Kazuo YANAGI ; Hiroaki TANABE ; Takeshi SATOH
Japanese Journal of Cardiovascular Surgery 1992;21(2):200-203
A 71-year-old woman was admitted with severe back pain. She was diagnosed of type A dissecting aortic aneurysm and two-vessel coronary disease by CT scan and angiography. An acute-phase operation was started 32 hours after onset, performing replacement of ascending aorta and a two-vessel bypass. The affected aortic wall was so thin and fragile that the cut ends of these wall were treated with 25% solution of glutaraldehyde, a fastacting crosslinking agent, for 7min. As a result, a sufficient degree of reinforcement was obtained to complete the anastomotic procedure safely. She made a good recovery of cardiac function after the surgery, but was left with such complications as permanent complete atrioventricular block and a little aortic regurgitation. Following pacemaker insertion she was discharged and has returned to her normal activity. It appears that when treating the affected aortic wall with glutaraldehyde, a piece of gauze placed in the left ventricular cavity stopped up the aortic valve by half. As a result, glutaraldehyde was perhaps transferred from the gauze to the aortic valve and a part of the conduction system, causing injury to them. If meticulous care is exercised during the procedure to avoid unnecessary invasion of surrounding tissues, this technique will provide a useful means to accomplish safe anastomoses of cardiac vessels.
2.Long-Term Results after Prosthetic Bypass Surgery for Chronic Limb Ischemia.
Masahiko Ikebuchi ; Toshihiko Tanabe ; Hiroaki Kuroda ; Kimiyo Ono
Japanese Journal of Cardiovascular Surgery 2002;31(3):177-182
We evaluated long-term results of 126 consecutive bypass surgeries for chronic limb ischemia including 54 aorto-femoral (AF), 26 femoro-femoral crossover (FF), 7 axillo-femoral (AxF), and 39 femoro-above the knee popliteal (FP) bypasses. Patients who had undergone FF bypasses were significantly older than those who received AF bypasses (p<0.01). Preoperative ankle brachial pressure indices (ABI) of the AxF and FF patients were significantly lower than those of AF patients (p<0.05). Compared with AF patients, the AxF and FF groups included significantly higher percentages of Fontaine III and IV limbs treated by limb salvage surgery (p<0.05). The cumulative graft patency rates 5 years after AF, FF, and FP bypasses were 94.7%, 91.3%, and 64.3%, respectively. In the FP group, patients with intermittent claudication before surgery showed a 5-year graft patency rate of 82.5%, while that in patients who underwent surgery for limb salvage was 43.3%. The secondary graft patency rates 5 years after AF, FF, and FP bypasses were 94.6%, 91.3%, and 83.3%, respectively. All patients whose bypass grafts were occluded were male and were smokers. Poor run-off and insufficient anticoagulation therapies were also associated with graft occlusion. Two of the 12 patients who developed graft occlusion underwent limb amputation.
3.Evaluation by Students of Bedside Learning in the Department of Pediatric Surgery.
Masahiro TANABE ; Naomi OHNUMA ; Jun IWAI ; Hideo YOSHIDA ; Hideki ENOMOTO ; Hiroaki KURODA ; Hiroyuki KOBAYASHI ; Tadaaki OKADA ; Hideyo TAKAHASHI
Medical Education 1997;28(4):239-243
We evaluated bedside learning in the department of pediatric surgery by conducting a questionnaire survey of senior medical students at Chiba University School of Medicine. We obtained responses from 70 of 95 students (74%). Although 84% of students responded by making lists of patients' problems. Many students indicated insufficient knowledge about diseases and insufficient technical skills for medical treatment as the reasons they could not solve these problems. This finding indicates that students do not have sufficient basic knowledge and clinical skills for bedside learning. These skills must be acquired and evaluated before bedside learning can be started.
4.An attempt to establish real-world databases of poly(ADP-ribose) polymerase inhibitors for advanced or recurrent epithelial ovarian cancer: the Japanese Gynecologic Oncology Group
Muneaki SHIMADA ; Kosuke YOSHIHARA ; Terumi TANIGAWA ; Hiroyuki NOMURA ; Junzo HAMANISHI ; Satoe FUJIWARA ; Hiroshi TANABE ; Hiroaki KAJIYAMA ; Masaki MANDAI ; Daisuke AOKI ; Takayuki ENOMOTO ; Aikou OKAMOTO
Journal of Gynecologic Oncology 2023;34(3):e62-
The development of new treatments for gynecological malignancies has been conducted mainly through collaborative international phase III trials led by the United States and Europe. The survival outcomes of many gynecological malignancies have greatly improved as a result. Recent large-scale genome-wide association studies have revealed that drug efficacy and adverse event profiles are not always uniform. Thus, it is important to validate new treatment options in each country to safely and efficiently provide newly developed treatment options to patients with gynecological malignancies. The Japanese Gynecologic Oncology Group (JGOG) is conducting 5 cohort studies (JGOG 3026, 3027, 3028, 3030, and 3031) to establish real-world data (RWD) of poly(ADP-ribose) polymerase (PARP) inhibitor use in patients with advanced or recurrent epithelial ovarian cancer. The RWD constructed will be used to provide newly developed PARP inhibitors for women with advanced or recurrent ovarian cancer in a safer and more efficient manner as well as to develop further treatment options. In 2022, The JGOG, Korean Gynecologic Oncology Group, Chinese Gynecologic Cancer Society, and Taiwanese Gynecologic Oncology Group established the East Asian Gynecologic Oncology Trial Group to collaborate with East Asian countries in clinical research on gynecologic malignancies and disseminate new knowledge on gynecologic malignancies from Asia. The JGOG will conduct a collaborative integrated analysis of the RWD generated from Asian countries and disseminate real-world clinical knowledge regarding new treatment options that have been clinically implemented.
5.A Case of Aortic Root Replacement in Freestyle Valve Reoperation
Taiki KAWAIDA ; Hiroaki TANABE ; Mitsuhisa KOTANI ; Yuji KATO ; Shintaro YAMAZAKI ; Kimio HOSAKA ; Masaaki TOYAMA
Japanese Journal of Cardiovascular Surgery 2020;49(4):214-217
Medtronic Freestyle Stentless bioprosthesis as well as stented bioprosthesis, can lead to structural valve deterioration (SVD) or disruption of the porcine aortic root. Seventeen years ago, a 52-year-old woman with aortitis syndrome underwent aortic root replacement in a full-root fashion for aortic regurgitation (AR) with a Freestyle aortic bioprosthesis. A recent follow-up echocardiogram revealed severe AR due possibly to SVD. Thus, we planned an aortic valve replacement (AVR) for AR with possible leaflet tear of the prosthesis. Upon completion of AVR while the aortotomy was being closed, however, a disruption in the porcine aortic wall was found. Root replacement had to be performed because of this finding. In stentless valve reoperation long after AVR with the full-root method, both the porcine aortic root and leaflets can be disrupted. Aortic root replacement may be necessary if preoperative images reveal dilatation, as well as disruption of the sinus of Valsalva.
6.Survey of Patient’s Comprehension of Home Medical Care and Pharmaceutical Intervention Using Factor Analysis
Keiko TAKASHIMA ; Yasuhiro YOSHIKAWA ; Manabu KITAKOUJI ; Takashi OKUMURA ; Hiroaki TANABE ; Kenzo OKUMURA ; Toru OTORI ; Kenji MATSUYAMA ; Keiji YOSHIKAWA ; Norio ODA
Japanese Journal of Social Pharmacy 2018;37(1):45-51
Because of societal aging, Japanese pharmacists have an increasingly important role in home medical care. This is particularly true because more pharmacists are required to perform physical assessments to optimize patient treatment. However, few investigations have examined whether patients understand the role of pharmacists and the importance of home medical care. In this study, a questionnaire was provided to 260 patients aged 20-90 years to determine patients’ attitudes toward home medical care and pharmaceutical interventions. After conducting factor analysis, items related to home medical care were excluded at the stage of exploratory factor analysis, indicating that patients are not interested in home medical care. However, regarding pharmaceutical interventions, the questionnaire revealed that 42% of the patients required the pharmacists to provide information regarding the prescribed drugs during home medical care visits. Furthermore, it was demonstrated that 85% of the patients were unaware that physical assessments are also perform by pharmacists. In contrast, >50% of the patients believed that pharmacists had an important role in physical assessment interventions.