1.Aortic Root Replacement for Bicuspid Aortic Valve and Annuloaortic Ectasia in a Patient with Ankylosing Spondylitis
Hideki Takahashi ; Takashi Azami
Japanese Journal of Cardiovascular Surgery 2011;40(3):130-134
A 48-year-old man was admitted with shortness of breath. He had been given a diagnosis of ankylosing spondylitis by an orthopedic surgeon 20 years previously. A grade III/VI to-and-fro murmur was audible at the left sternal border. Echocardiography revealed moderate to severe aortic regurgitation with annular dilatation. He had also suffered complained rigidity of the neck muscles and back pain for 20 years. He underwent aortic root replacement and his postoperative course was uneventful. Aortic valve regurgitation with ankylosing spondylitis in Japan has been seldom reported, compared with European or American. We discuss surgical problems and the management of these lesions are discussed.
2.A Case of Swelling of Lower Extremity due to Iliac Vein Occlusion with IgG4-Related Idiopathic Retroperitoneal Fibrosis
Hideki Takahashi ; Takashi Azami
Japanese Journal of Cardiovascular Surgery 2011;40(4):197-201
A 62-year-old man presented with a chief complaint of swelling of the left lower extremity. Idiopathic retroperitoneal fibrosis had been diagnosed 6 years previously. Enhanced computed tomography demonstrated occlusion of the left common iliac vein, but without deep vein thrombosis, and a thick dense fibrous layer around the abdominal aorta and in front of the sacrum. After we administered steroid and anticoagulant therapy, remission of the swelling of the left lower extremity was obtained. Presently steroids are being gradually tapered, and he has remained free of recurrence of the swelling of his left lower extremity.
3.A Case of Cystic Adventitial Disease of the Popliteal Artery and Study of 116 Cases Reported in Japan
Hideki Takahashi ; Naritomo Nishioka ; Takashi Azami
Japanese Journal of Cardiovascular Surgery 2010;39(4):220-225
We report a rare case of cystic adventitial disease of the popliteal artery causing intermittent claudication. About 2 months previously, a 21-year-old man had sudden intermittent claudication in the left leg. The left-sided ankle brachial pressure index (ABI) at rest was 0.66. Computed tomography revealed that the arterial occlusion was segmentally caused by cystic lesions. A cystic adventitial lesion of the popliteal artery, measuring 9 cm in diameter, was surgically removed and reconstruction was performed with a saphenous vein graft. Postoperatively the left ABI improved to 1.01, and his symptoms disappeared. The histopathological diagnosis was cystic adventitial disease and the cysts were in the adventitia. The postoperative course was uneventful and he has been without recurrence for 14 months.
4.The Comparison Survey between TDM Guideline and TDM Analysis Software Related to Setting the Initial Dose of Vancomycin Aimed to Utilize the TDM Guideline
Makoto Nakashima ; Yuka Nakakihara ; Takeshi Takahashi ; Hiroshi Nomaguchi ; Morihiko Terashi ; Hideki Hayashi ; Tadashi Sugiyama
Japanese Journal of Drug Informatics 2016;18(1):13-21
Objective: We have used therapeutic drug monitoring (TDM) analysis software to set the initial dose of vancomycin in our hospital. In contrast, the TDM guideline, in which the initial dose of vancomycin per body weight was set, was published in 2012. We looked forward with utilizing the TDM guideline in the clinical setting, after which we conducted multiple surveys to determine the important points of the TDM guideline.
Methods: We surveyed patients treated with vancomycin, in whom the initial dose was set using the TDM analysis software and the concordance rate between the vancomycin dose set with the software and that set with the TDM guideline.
Results: The concordance rate of vancomycin dose was 42.1%. The mean age of the high-dose group (vancomycin dose higher than that recommended by the TDM guideline), was younger than that of the recommended-dose group. Additionally, the mean body weight of the high-dose group was significantly lower than that of the recommended-dose group. The corrected creatinine clearance of the low-dose group was significantly lower than that of the recommended-dose group.
Conclusion: Our results suggest that when the initial dose is set after referring the TDM guideline in patients who are not very high age, and having low body weight and decreased renal function, the dose may differ from the dose set by using TDM analysis software. In addition, since the recommended dose per body weight is a range and not a single value, setting the dose appropriate to target trough concentration is necessary.
5.Effects of Moderate-Intensity Endurance Exercise on Reactive Oxygen Species Production and Leukocyte Activation Markers
Masaki TAKAHASHI ; Katsuhiko SUZUKI ; Hideki MATOBA ; Masayuki SATAKE ; Shizuo SAKAMOTO ; Shigeru OBARA
Japanese Journal of Complementary and Alternative Medicine 2011;8(1):25-28
The purpose of this study was to examine effects of moderate-intensity endurance exercise on reactive oxygen species production and leukocyte activation markers in young and middle-aged persons. Blood samples were collected before and after the jogging of 10 km. Although cytokines recruiting and priming neutrophils and monocytes were released into the circulation and functional after the jogging of 10 km, reactive oxygen metabolites-derived compounds (d-ROMs) were not significantly increased. It was indicated that chemokines and leukocyte activation markers at rest were increased with aging, and that might be accompanied by the higher level of d-ROMs in the elderly.
6.Four Hemodialysed Patients with Upper Abdominal Discomfort Successfully Treated with Heiisa
Shun TAKAKU ; Chizuno TAKAKU ; Hideki KURIBAYASHI ; Eiichi OSONO ; Naoki HIRAMA ; Hidemi TAKAHASHI
Kampo Medicine 2011;62(4):584-588
In this report, we describe four hemodialysed patients with upper abdominal discomfort successfully treated with Heiisan, one of the known traditional oriental herbal medicine.Case 1 was a 61-year-old man suffering from upper abdominal discomfort after each meal even though daily taking some medicine for gastritis. Case 2 was a 45-year-old man, who has also been suffering from upper abdominal discomfort after breakfast and supper despite daily taking H2-blocker. Case 3 was a 61-year-old man complaining of upper abdominal discomfort. He has had loss of appetite despite being treated with H2-blocker and gastroprokinetic medication. Case 4 was a 69-year-old woman complaining of upper abdominal discomfort with dull pain before eating. She was diagnosed as chronic gastritis and healing stage of duodenal ulcer and prescribed H2-blocker. However, this medicine did not work.We diagnosed that upper abdominal discomfort in all the patients came from shitsu-jya (pathogenic dampness) in hii (Spleen-Stomach functional unit), and treated them with Heiisan, which was popular to remove shitsu-jya in Hii. Their symptom disappeared soon after taking this medicine.It is also difficult for hemodialysed patients to control their weight due to anuria and they tend to easily gain the weight due to inappropriate eating and drinking, leading to shitsu-jya in such patients. Therefore, our reports suggested that Heiisan was good for hemodialysed patients to control various upper abdominal symptoms that might be caused by shitsu-jya in Hii.
7.Reflection on the Past 30 Medical Education Seminars and Workshops Held by the Medical Education Development Center
Masayuki NIWA ; Kazuhiko FUJISAKI ; Tomomi KATO ; Keiko ABE ; Hideki WAKABAYASHI ; Yuzo TAKAHASHI ; Yasuyuki SUZUKI
Medical Education 2009;40(5):367-374
The Medical Education Development Center has organized seminars and workshops for medical education 30 times from 2000 through 2008 throughout Japan. The participants have numbered more than 3200 and have included educators, physicians, students, and simulated patients. The topics of seminars and workshops have included problem-based learning tutorial systems, medical interview skills, objective structured clinical examinations, evidence-based medicine, coaching technology, simulations, and community medicine in response to educational needs. A questionnaire survey of 1793 participants of the 11th to 30th seminars and workshops (response rate, 85.6%) showed a high degree of satisfaction (4.33±0.13 of 5 points). Invited lecturers and directors from throughout the country often organized these workshops. The results of workshops are reported in our annual monograph, "Trends in Medical Education."
8.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.
9.Three essential conditions to cultivate physician scientists
Hideki WAKABAYASHI ; Luis A DIAZ ; David RUBENSTEIN ; Alan LEFOR ; Yasuo KITAJIMA ; Yumi AOYAMA ; Yasuyuki SUZUKI ; Yuzo TAKAHASHI ; Nobutaro BAN
Medical Education 2009;40(6):433-437
1) We conducted a workshop to discuss the definition of the term "physician scientist", what thought processes and competencies are expected, and how to better help physician scientists develop through medical schools.2) The definition of a physician-scientist is a physician who both provides patient care and approaches unsolved questions in understanding the mechanisms of diseases and developing new treatments.3) Essential conditions for a medical school to cultivate physician scientists include providing good role models for physician scientists, making efforts to stimulate students' motivation, and supporting collaboration among physicians and scientists on the faculty.
10.Invention of Check Points Used in Pharmaceutical Management in Hospital Ward Utilizing PREAVOID
Makoto Nakashima ; Yoshihiro Yamamoto ; Akira Takahashi ; Takuya Goto ; Mie Kominami ; Tomomi Konishi ; Yukiko Shibata ; Hideki Hayashi ; Tadashi Sugiyama
Japanese Journal of Drug Informatics 2015;17(3):155-163
PREAVOID is pharmaceutical intervention that is utilized to illustrate pharmacists’ contributions to medical care. Currently, there is a great need for pharmacists to provide good medical services to inpatients; as a result, many pharmacists conduct pharmaceutical management in hospital wards. However, pharmacists who have limited experience in working in the ward do not know exactly what they should check with respect to pharmaceutical management. To resolve this problem, we determined 16 pharmaceutical-management items based on PREAVOID that was conducted at Nagara Medical Center. Moreover, we conducted a pre-questionnaire survey assessing whether pharmacists who had worked in the ward for fewer than 4 years attended to these 16 check items in their daily work prior to our introducing the list to them. The results indicated that pharmacists who had fewer than 2 years of experience working in wards attended to the 16 check items less than those who had more than 2 years of experience, and approximately half of the pharmacists had not received adequate guidance before beginning work at the ward. In addition, most pharmacists indicated that clear check points were useful for conducting pharmaceutical management and the 16 check items were useful for their daily work. These results indicate that the 16 check items are a useful educational tool for enabling pharmacists to conduct high quality pharmaceutical management from the initial stage and that using the 16 check items is superior to pharmacists only gaining this ability via prolonged experience working in the ward.