1.Pharmacoeconomic Analysis of hyperlipidemia Treatment comparing Fibrate with Statin
Tsutomu Takahashi ; Yoshiyasu Saegusa ; Yukie Takimoto ; Makoto Shiragami
Japanese Journal of Drug Informatics 2009;11(2):96-101
[Objectives] It has been demonstrated that HMG-CoA reductase inhibitors (statins) effectively reduce the low-density lipoprotein cholesterol (LDL-C) and total cholesterol levels in the blood, and currently, statins are most widely used for the treatment of hyperlipidemia. On the other hand, it has been demonstrated that fibrates more effectively reduce the blood triglyceride level (TG). However, concomitant use of statins and fibrates is contraindicated.
Therefore, practical and situational use of fenofibrate (fibrate therapy) and atorvastatin (statin therapy) was investigated in patients with high TG and LDL-C levels in consideration of cost effectiveness.
[Method] Baseline TG and LDL-C levels were stratified, and a table of combination was prepared for TG and LDL-C values. Effectiveness was measured by the number of patients who were able to achieve treatment targets. Treatment targets were set referring to the reduction rate of serum lipid levels in dose finding studies of fenofibrate and atorvastatin and the target lipid levels identified in 2007 Japan Atherosclerosis Society Guidelines for Prevention of Atherosclerotic Cardiovascular Diseases. Costs were measured by annual drug treatment costs, and the incremental cost effectiveness ratio of atorvastatin to fenofibrate was then estimated. According to the actual patient distribution, the incremental cost effectiveness ratio of atorvastatin to fenofibrate in patients with TG level over 150 mg and LDL level over 140 mg was also estimated.
[Results] Fenofibrate was dominant over atorvastatin where effectiveness was higher and costs were lower in fenofibrate treatment in two patient groups; patients with LDL-C level under 160 mg patients with TG level over 170 mg and LDL-C level between 160 mg and 170 mg patients with TG level over 190 mg and LDL-C level between 170 mg and 180 mg patients with TG level over 230 mg and LDL-C level between 180 mg and 190 mg patients with TG level over 250 mg and LDL-C level between 190 mg and 200 mg patients with TG level over 290 mg and LDL-C level between 200 mg and 210 mg patients with TG level over 350 mg and LDL-C level over 210 mg. In an analysis made according to the actual patient distribution, 571 fenofibrate patients and 534 atorvastatin patients were able to achieve the treatment targets, and fenofibrate was dominant over atorvastatin where effectiveness was higher and costs were lower in fenofibrate treatment.
2.Study on the grading ability of the muscle strength
Mitsutsugu Ono ; Yasumitsu Takahashi ; Shuzo Tsubota ; Makoto Yamato
Japanese Journal of Physical Fitness and Sports Medicine 1966;15(3):113-119
In grip strength a subject being ordered to show one-third, one-second and twothird of his own maximum value after checking his maximum, the value he shows is not always the same as the ordered value. The Discrepancy Index was determined by the grade of the difference between the ordered value mentioned above and the value showed actually.
For 2117 subjects composed of both sexes our experiment was performed.
1) The possibility of training effect for one-third and two-third of their own maximum value existed but little for one-second.
2) Up to 16 years of age the training effect increased with their physical development, but after 17 years remarkable change of their grading ability was not found.
3) There existed no relation between the experimental results of one-third value and two-third, between the left hands and the right, and between the Discrepancy Index of pre-training and post-training.
4) The larger maximum value of grip strength became, the smaller the Discrepancy Index was. Sometimes in the individuals who have larger maximum value, the more training effect was recognized.
5) The champions of weight-lifting, Kendo and volleyball showed better results than those of the control groups.
3.THE EFFECTS OF EXERCISE OF THE PERONEUS LONGUS AND TIBIALIS POSTERIOR MUSCLES ON HEEL RAISE
KAORI TOKUOUMARU ; MAKOTO TAKAHASHI ; KIYOKAZU SEKIKAWA ; KOTARO KAWAGUCHI ; TSUTOMU INAMIZU
Japanese Journal of Physical Fitness and Sports Medicine 2009;58(3):387-394
Objective: This study aimed to clarify changes in planter pressure at the 1, 2, 5 metatarsal head, and muscle activities resulting from exercise of the peroneus longus (PL) or tibialis posterior (TP) muscles. Method: Nine subjects (3 male, 6 female) were recruited. Before and after exercise, planter pressure at the metatarsal heads and the activities of PL, TP, tibialis anterior, and soleus muscles were recorded during heel raising using electromyography and a foot sensor. The first exercise was a maximal isometric contraction of the PL and peroneus brevis (PB). The second was contraction of the TP, and the third was of all three, the PL, PB, and TP. Result: The amount of planter pressure at the first metatarsal head increased after PL exercise. The standard deviation at the second metatarsal head decreased after PL and TP exercise, but showed no change after PL exercise. Conclusion: After PL and TP exercise, heel raises were possible with few perturbations at the metatarsal head. After PL exercise, the amount of planter pressure at the first metatarsal head increased, but there was no change in perturbations. The results show that it is necessary to consider the effect of short time exercise.
5.A Case of Infective Endocarditis during Perinatal Period.
Tatsuya HONDO ; Kouichi TAKAHASHI ; Nobuyuki MORISHIMA ; Makoto MUNEMORI ; Makoto OOBAYASHI ; Toshio MATSUOKA ; Masaki SENAMI
Journal of the Japanese Association of Rural Medicine 1997;45(6):822-826
A 32-year-old woman was referred to our hospital during the 35th week of pregnancy because of chest pain and dyspnea. The cesarean section was performed and a healthy infant was delivered. On the 16th hospital day, she developed heart failure. Echocardiograms revealed protrusion of the mitral valve into the left atrium in systole, vegetation and worsening of mitral regurgitation. CT showed splenic infarction. Mitral valve replacement was performed after inflammatory findings were improved by antibiotics. We reported here a case of infective endocarditis during the perinatal period.
6.Studies of Takotsubo-type Myocardioparthy-Centering on Our Cases
Makoto NAKANO ; Toshiaki TAKAHASHI ; Etsuko FUSHIMI ; Masaharu TAKEUCHI ; Nobuya SEKIGUCHI ; Keiji KIMURA ; Masato HAYASHI
Journal of the Japanese Association of Rural Medicine 2005;54(2):91-96
During the period of two years from 2001 to 2003, we treated nine cases of takotsubo-type myocardiopathy. In this paper, the clinical characteristics and patients' conditions are described, and the mechanisms leading to dyskinesia of the muscular walls of the heart are discussed. All the cases were female. The mean age was 73 years. Physiological as well as psychological stress was implicated as a major cause of the disease, with onset occurring when some members of their family were suddenly taken ill or when they started quarreling with others. Echocardiograms revealed sigmoid septa in almost half of the nine patients. The prognosis was good. Only one patient had cardiac insufficiency as a sequela, but her condition improved. No one died.Eight patients got over dyskinesia of the left ventricular walls in two weeks. From our experience and studies of literature, we ruled out the possibility of the involvement of circulatory disorder and myocarditis in the onset of the disease. Women of advanced age are apt to have sigmoid septa and left ventricular walls thinning. When the old patient in this condition suffer psychosomatic stress, catecholamines will be released, causing the hypercontraction of the left ventricle, the pressure difference in the chamber, and the collapse of the apical of the heart. We concluded that these physiopathological states may be responsible for the abnormal movements of the muscular walls of the heart peculiar to the disease taken up in this study.
7.Medications Prescribed at Discharge for Patients with Acute Myocardial Infarction : Evidence-to-Practice Gap in Janan
Tsukasa Nakamura ; Kunihiko Matsui ; Osamu Takahashi ; Koutaro Shiomi ; Norihiro Shikata ; Makoto Tsunoda ; Tsuguya Fukui
General Medicine 2007;8(1):13-18
BACKGROUND: The existence of a gap between research evidence and clinical practice has been described recently. Several drugs are effective in preventing secondary events after acute myocardial infarction (AMI), but it is not certain whether this evidence is employed in daily practice. We investigated the drugs currently employed for patients with a history of AMI in Japan.
METHODS: Medical records of patients who developed AMI during the calendar year of 1999 were retrospectively identified at three teaching hospitals in Japan. We collected data on drugs prescribed at three time points (upon admission for AMI, at the time of discharge, and one year after discharge) for each patient.
RESULTS: Data were available for 149 patients with AM!. Drugs prescribed at the time of discharge were aspirin (77.5%), nitrates (68.3%), and angiotensin converting enzyme inhibitors (52.8%) . β-blockers were prescribed for only 12.0% of patients. The drugs used one year after discharge were to a large extent similar to those at the time of discharge. There were no significant correlations between the use of these drugs and comorbidity.
CONCLUSION: Despite established evidence that β-blockers offer benefits to patients with a history of AMI, they have not been prescribed frequently, for reasons that remain unclear. To improve the quality of clinical care, further systematic effort is needed to bridge this evidence to practice gap.
8.Effectiveness of Subcutaneous Suture in Prevention of Surgical Site Infection after Pancreaticduodenectomy
Takuya KOIKE ; Satoru KONO ; Risa SHIOMI ; Makoto ARAI ; Masashi TAKAHASHI ; Takeo HOKARI ; Seigo TAKANO
Journal of the Japanese Association of Rural Medicine 2015;64(2):161-165
[Purpose] We introduced subcutaneous suture with a synthetic absorption thread and examined its efficacy on surgical site infection after pancreaticduodenectomy (PD). [Method] In hour hospitals, PD was performed in a total of 69 cases from March 2006 through March 2014. They was divided into two groups-one consisting of 31 cases in which the skin wounds with staplers (non-subcutaneous suture group), and the other consisting of 38 cases in which surgical wounds were closed with subcutaneous sutures (subcutaneous suture group), and the incidence of surgical site infection (SSI) were compared between the two groups. [Result] Incidence of surface SSI occurred in eight cases (21.0%) in the non- subcutaneous suture group and three cases (9.7%) in the subcutaneous suture group (p=0.17). The incidence of SSI was decreased in the subcutaneous suture group than in the non-subcutaneous suture group, but no statistically significant difference was observed between the two groups. However, taking into account the advantages such as the reduction of patient’s medical expenses, and the burden of ward duties, further examination with an additional number of patients was thought to be necessary.
9.Characteristics of second-year residents intending to become a primary care physicians
Takuma Kimura ; Kyoko Nomura ; Osamu Takahashi ; Makoto Aoki ; Eiji Yano ; Tsuguya Fukui
An Official Journal of the Japan Primary Care Association 2012;35(1):6-11
Purpose : To examine the characteristics of second-year residents intending to become primary care physicians.
Methods : Using a self-administered questionnaire, we surveyed 7344 second-year residents in March, 2006. Of the 4167 responders (response rate 56.7%), the 3838 who answered that they intended to make a career choice of being clinical practitioners were taken as subjects for analysis. The odds ratios (OR) for the intention of being a primary care physician was calculated, together with the 95% confidence interval (95% CI), using logistic regression models (primary care physicians intended=1 vs. specialist intended=0)
Results : In total, 56% of the residents affirmed an interest in becoming primary care physicians. Multiple stepwise logistic models showed that residents intending to become primary care physicians planned to open their own clinics in the future (OR 1.44, 95% CI : 1.20-1.73), did not wish to obtain doctor of medical science (DMSc) degrees (OR 1.29, 95% CI : 1.07-1.55), and were more likely to choose internal medicine (OR 1.44, 95% CI : 1.07-1.94).
Conclusion : This study demonstrated that second-year residents who aimed to be primary care physicians were associated with more interest in opening private clinics for their future practice, preferably in the field of internal medicine, and with less interest in earning DMSc degrees.
10.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.