1.Risk Factors and Subjective Symptoms of Drug-Induced Thrombocytopenia
Masayuki Kakeya ; Fumiko Ohtsu ; Reiko Yano ; Jinsaku Sakakibara ; Nobuyuki Goto
Japanese Journal of Drug Informatics 2014;16(2):70-80
Objective: The present study investigated risk factors and subjective symptoms associated with drug-induced thrombocytopenia.
Methods: We selected 361 patients with drug-induced thrombocytopenia from the Case Reports of Adverse Drug Reactions and Poisoning Information System (CARPIS) database of over 65,000 case reports of adverse drug reactions and assigned these patients to a case group. We also randomly selected 794 cases of adverse drug reactions not associated with thrombocytopenia as a control group.
Results: Data were compared between the case and control groups, and results were analyzed using logistic regression analysis. We identified type of infection (non-viral) and renal failure as risk factors for drug-induced thrombocytopenia. In addition, administration of carbamazepine, methotrexate, interferon alpha, ticlopidine or valproic acid significantly increased the risk of drug-induced thrombocytopenia. Significant associations were also found between drug-induced thrombocytopenia and purpura, fever, and mucosal bleeding.
Conclusion: These findings provide helpful information for early detection and prevention of thrombocytopenia as a serious adverse drug reaction.
2.A Surgical Case of Papillary Fibroelastoma Located in the Tricuspid Valve Chordae
Ko Nakahara ; Hirohisa Goto ; Megumi Fuke ; Masayuki Sakaguchi ; Kazunori Nishimura
Japanese Journal of Cardiovascular Surgery 2015;44(6):338-341
Papillary fibroelastoma (PFE) is the second most common type of benign cardiac tumor after myxoma, and is most commonly found in the left side of the heart. In this study, we report a case of PFE located in the tricuspid valve chordae. The patient was a 65-year-old woman in whom a heart murmur was detected during a routine medical examination. A follow-up examination identified a cardiac tumor, and she was subsequently referred to our medical department. Echocardiography and contrast-enhanced computed tomography indicated a mobile mass of approximately 1 cm in the right ventricle, and she was determined to be a candidate for surgery. After cardiopulmonary bypass, we instigated cardioplegic arrest, made an incision in the right atrium, and observed the right ventricle through the tricuspid valve. We observed a yellowish sea-anemone-like mass approximately 9 mm from the chordae of the anterior leaflet of the tricuspid valve. Thus, the mass was resected with the chordae and tricuspid annuloplasty. Postoperative progress was satisfactory, and the subject was discharged on the 19th day of hospitalization. Histopathological examination indicated a mixture of thick fibrous and adipose tissues, which led to the diagnosis of PFE. PFE is a relatively rare disease that comprises 8% of primary cardiac tumors. IA often occurs in the left heart and can cause cerebral infarction, myocardial infarction, and other symptoms of embolism. However, because small masses and those that occur in the right heart are not accompanied by clinical symptoms, such cases are often discovered during routine echocardiography. The present study reports a case of PFE that occurred in the tricuspid valve chordae that was diagnosed via echocardiography.
3.Pharmacists’ Knowledge and Opinions Regarding Generic Drugs: A Survey
Kayo Sakuraeda ; Tomoyo Goto ; Junji Ito ; Fumiko Ohtsu ; Nobuyuki Goto ; Masayuki Nadai ; Mikio Masada
Japanese Journal of Drug Informatics 2010;12(2):85-91
Objective: In recent years, the Ministry of Health, Labor and Welfare has actively promoted the use of generic drugs. However, implementation of this policy has not progressed smoothly, and generic drug companies suggest that this is because medical staff and patients are not properly informed. We examined pharmacists’ knowledge and opinions concerning generic drugs.
Methods: We conducteda questionnaire survey to determine community pharmacists’ opinions and understanding with regard to generic drugs.
Results: About 90% of pharmacists were apprehensive about the use of generic drugs. All pharmacists scored low on factual questions, answering an average of 40 % correctly. The question about the bioequivalence evaluation method in particular was poorly answered. However, pharmacists’ anxiety about using generic drugs was not related to their knowledge.
Conclusion: Our findings suggest that community pharmacists lack sufficient knowledge about generic drugs. It is therefore necessary to educate them on the use of generic drugs. Also, in order to allay pharmacists’ fears, it is important to improve the comprehensiveness of information concerning generic drugs.
4.Pneumoconiosis and Vibration Syndrome Among Migrant Workers in Kochi Prefecture
Hiroshi Une ; Hiroji Esaki ; Shunichi Horikawa ; Shinichi Kondo ; Masayuki Nakamura ; Masanori Goto
Journal of the Japanese Association of Rural Medicine 1984;32(5):969-977
About 7, 000 workers migrated from Kochi Prefecture in 1965. Recently the number of patients with pneumoconiosis and vibration syndrome has increased among these persons who worked on constructing tunnels. To investigate the health status of these workers, we interviewed 73 of these workers with regard to history of migration, work situations, health condition and so on in Niyodo Village in Kochi Prefecture. Thirty workers were examined for pneumoconiosis and vibration syndrome. Geographical distribution of the areas from which these workers had migrated were also analysed by using the statistical data of Kochi Prefecture in 1965.
The results were as follows:
1) Numerous migrant workers come from the mountain villages along the Shikoku Mountains. In the middle-northern areas, included Niyodo Village, the number of migrant workers was large.
2) Their working conditions in the tunnel were poor and measures for prevention of pneumoconiosis, such as wearing of a dust respirator and drilling the rock with water, were poorly carried out. Vibrating tools were also used for long periods of time.
3) Of 73 workers, 40 have been given the compensation follwing a diagnosis of pneumoconiosis or vibration syndrome.
4) In 23 examinees, silicosis was detected in the chest X-ray examination. Classifications included 13 of type 1, 7 of type 2, and 3 of type 4. Also examinees had subjective symptoms and/or objective findings of vibration syndrome. Eighty seven percent were classified as Grade III according to the criteria of Andreeva-Galanina. Thus, most of migrant workers involved in tunnel construction work had complications of pneumoconsosis and vibration syndrome.
5.A Report from Task Force on Pharmacoepidemiology and Pharmaceutical Education
Shikifumi KITAZAWA ; Kiichiro TSUTANI ; Takao ORII ; Mikio MASADA ; Shigeru KAGEYAMA ; Toru EBIHARA ; Shigeo YAMAMURA ; Nobuyuki GOTO ; Tomofumi SANTA ; Masayuki HASHIGUCHI
Japanese Journal of Pharmacoepidemiology 2009;14(1):13-20
For the purpose of pharmacists to be able to be more involved clinically, the pharmacy education system in Japan was revised in April 2006 and the term length of pharmacy education was extended from 4 years to 6 years.
The Japanese Society for Pharmacoepidemiology is deeply concerned about the new curriculum which will be adopted for the 6-year course, especially the handling of pharmacoepidemiology education. Two questionnaire surveys were sent to the dean of all schools of pharmacy to inquire whether they lecture pharmacoepidemiology and, if not, what study in pharmaceutical sciences would be most closely related to pharmacoepidemiology. The surveys were conducted just before and just after the introduction of the new system, in October 2005 and July 2007. The recovery of the first and second survey were 90% and 76%, respectively.
In the first survey only 17 universities (31%) had lectures on pharmacoepidemiology but in the second survey 31 universities (57%) did, and in 55% of these 31 universities the lecture was required. The result indicates that the understanding of professors of pharmacy school regarding the lecture have been gradually promoted and they feel that pharmacoepidemiology is going to be considered to be one of the essential lectures in pharmacy education in Japan. However, many responders indicated that pharmacoepidemiology was still an immature field of study and there are few appropriate textbooks and no teaching experts, and therefore, the society should take these matters into reconsideration.
6.Primary Multiple Cardiac Myxomas in a Patient without the Carney Complex.
Shohei KATAOKA ; Masato OTSUKA ; Masayuki GOTO ; Mitsuru KAHATA ; Asako KUMAGAI ; Koji INOUE ; Hiroshi KOGANEI ; Kenji ENTA ; Yasuhiro ISHII
Journal of Cardiovascular Ultrasound 2016;24(1):71-74
Cardiac tumors are rare, and multiple myxomas are even rarer. The latter phenomenon is mostly associated with the Carney complex, a dominantly inherited disease characterized by multiple primary cardiac myxomas, endocrinopathy, and spotty pigmentation of the skin. We report the rare case of a patient who did not have the Carney complex but had multiple primary cardiac tumors. A 78-year-old woman with a past history of breast cancer was referred to our hospital for further examination of multiple cardiac tumors. Echocardiography showed 4 tumors in the left atrium and left ventricle. We could not diagnose them preoperatively and decided to resect them surgically because they were mobile and could have caused embolism and obstruction. The postoperative pathological findings of all 4 tumors were myxomas, although the patient did not meet the diagnostic criteria of the Carney complex. Therefore, a rare case of multiple primary cardiac myxomas was diagnosed.
Aged
;
Breast Neoplasms
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Carney Complex*
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Echocardiography
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Embolism
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Female
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Heart Atria
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Heart Neoplasms
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Heart Ventricles
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Humans
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Myxoma*
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Pigmentation
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Skin
7.Survey on Formulations and Dosage Forms Needed by the Medical Community
Tsukasa MORI ; Nobuyuki GOTO ; Tadanori SASAKI ; Sachiko HARADA ; Masayuki YAMAKAWA ; Kyohei WATANABE ; Fumiko OHTSU
Japanese Journal of Drug Informatics 2022;24(2):121-129
Objective: In this study, we conducted a questionnaire survey of hospital pharmacists throughout Japan with the aim of identifying the most-requested in-hospital preparations and off-label use drugs, and exploring the possibility of commercializing them.Methods: The Commercialization Study Group of the Japanese Society of Hospital Pharmacists conducted a questionnaire survey on the Japanese Society of Hospital Pharmacists website targeting hospital pharmacists who are members of the Japanese Society of Hospital Pharmacists. The period of the survey was from February 1, 2019 until January 21, 2020. In the questionnaire, the respondents wrote specific product names (generic names), specifications, and dosage forms that they would like to see improved and made commercially available in a free-text format. In addition, respondents chose their reasons for wanting the product to be improved or made commercially available from a list.Results: A total of 1,627 drugs were requested to be made commercially available. After duplicates and insufficient descriptions were excluded, the total was 553. The drugs that were most frequently requested were Levothyroxine suppositories, followed by Mohs’ ointment and Ulinastatin vaginal suppositories.Discussion: This survey identified certain drugs that pharmacists want to be commercialized and the specific reasons why. In-hospital preparations not only benefit patients whose diseases are becoming more complex and difficult to treat with existing prescription drugs, but also enable pharmacists to demonstrate their abilities. We believe that the commercialization of these important in-hospital preparations and off-label drugs will help avoid various risks associated with dispensing them and enhance the pharmacy profession. For this reason, pharmaceutical drug companies should conduct further surveys on the actual use of and literature research on the efficacy and safety of the drugs that were ranked high on the questionnaire and start considering their commercialization.