1.Introduction of Problem-Based Preclerkship Clinical Training in Internal Medicine
Nobuyuki FURUTANI ; Hiroshi YOSHIDA ; Norio TADA ; Masayuki KOBAYASHI
Medical Education 2004;35(1):57-63
To increase the safety and effectiveness of clinical clerkships, we have developed a 4-week preclinical training program, “Problem-Based Clinical Training, ” based on the concept of problem-based learning with the aim of encouraging life-long self-directed learning. The first week is a preparation period for clinical practice in which students are trained in problem-solving skills, basic-practice skills, and clinical reasoning. The second and third weeks are a practical training period in which students learn how be in charge of a patient's care. The fourth week was a problem-solving period without practical training in which students learned to solve problems. The students were encouraged to record daily “problem notes” describing problems and “problem solving notes” summarizing problems solved. To emphasize lessons learned, the students also presented and discussed problems. Evidence-based medicine was used as a tool for problem solving. Furthermore, medical record training based on the problem-oriented system using evaluations by other students encouraged self-development to improve clinical practice and the medical record. This curriculum should be effective for mastering the skills of self-directed learning and for motivating for advancement due to consideration of contributable proposals for the patients.
2.Ultrasound-guided rectus sheath block for improvement of feelings of abdominal distension
Kaoru Nishijima ; Norio Hashimoto ; Miwako Kobayashi ; Takako Morimoto ; Noriko Sakaguchi ; Akiko Nakanishi ; Yuko Tanaka ; Fumiko Koyama ; Shinichiro Zushi ; Kunitaka Shibata
Palliative Care Research 2012;7(1):526-529
We report a case in which feelings of abdominal distension and discomfort of the abdominal wall caused by malignant ascites were relieved by ultrasound-guided rectus sheath block. Case report: A 59-year-old man developed gastric cancer with malignant ascites and experienced feelings of abdominal distension, but no nausea, dyspnea, poor mobility, or limb edema. Symptom control was inadequate with diuretic therapy and abdominal paracentesis. Feelings of distension improved temporarily with ultrasound-guided rectus sheath block. A percutaneous catheter was then used to administer an infusion of 0.25% ropivacaine triweekly until his death 20 days later. Conclusion: Feelings of abdominal distension is one of various symptoms of severe ascites and is difficult to manage. Ultrasound-guided rectus sheath block can be used to relieve this symptom on a case-by-case basis.
3.Loiasis in a Japanese Traveler Returning from Central Africa
Tetsuro Kobayashi ; Kayoko Hayakawa ; Momoko Mawatari ; Makoto Itoh ; Nobuaki Akao ; Rie R. Yotsu ; Jun Sugihara ; Nozomi Takeshita ; Satoshi Kutsuna ; Yoshihiro Fujiya ; Shuzo Kanagawa ; Norio Ohmagari ; Yasuyuki Kato
Tropical Medicine and Health 2015;43(2):149-153
We encountered a probable case of loiasis in a returned traveler from Central Africa. A 52-year-old Japanese woman presented to our hospital complaining of discomfort in her eyes and skin. She reported having frequently visited Central Africa over many years and having been extensively exposed to the rainforest climate and ecosystem. Although no microfilariae were found in her blood, there was an elevated level of IgG antibodies against the crude antigens of Brugia pahangi, which have cross-reactivity with Loa loa. She was treated with albendazole for 21 days, after which the antigen-specific IgG level decreased and no relapse occurred.
4.Loiasis in a Japanese traveler returning from Central Africa
Tetsuro Kobayashi ; Kayoko Hayakawa ; Momoko Mawatari ; Makoto Itoh ; Nobuaki Akao ; Rie Roselyne Yotsu ; Jun Sugihara ; Nozomi Takeshita ; Satoshi Kutsuna ; Yoshihiro Fujiya ; Shuzo Kanagawa ; Norio Ohmagari ; Yasuyuki Kato
Tropical Medicine and Health 2015;advpub(0):-
We encountered a probable case ofloiasis in a returned traveler from Central Africa. A 52-year-old Japanese womanpresented to our hospital complaining of discomfort in her eyes and skin. She reportedhaving frequently visited Central Africa over many years and having been extensivelyexposed to the rainforest climate and ecosystem. Although no microfilariae werefound in her blood, there was an elevated level of IgG antibodies against thecrude antigens of Brugia pahangi,which have cross-reactivity with Loa loa.She was treated with albendazole for 21 days, after which the antigen-specificIgG level decreased and no relapse occurred.
5.Successful elimination of intractable lower limb neuropathic pain by pelvic tumor invasion using ultrasound-guided sciatic nerve block
Norio Hashimoto ; Kaoru Nishijima ; Miwako Kobayashi ; Chieko Kuwahara ; Takako Morimoto ; Noriko Sakaguchi ; Akiko Nakanishi ; Yuko Tanaka ; Fumiko Koyama ; Shinichiro Zushi ; Kunitaka Shibata
Palliative Care Research 2010;6(1):313-315
We report a case whose left lower limb neuropathic pain accompanied by pelvic tumor invasion was remarkably eliminated by ultrasound-guided sciatic nerve block. Case report: The subject was a sixty year old male. Pharmacological therapy was given according to the WHO analgesic ladder, but his left lower limb pain failed to respond to drugs. His intractable lower limb neuropathic pain was alleviated by ultrasound-guided sciatic nerve block. Drug delivery can be achieved with a percutaneous catheter and a disposable infusion pump. Infusions were run at 5mlh-1 with 0.1% ropivacaine. Conclusion: Neuropahic pain is sometimes hard to be controlled only by opioids or adjuvant analgesics, but there is a possibility of providing pain relief by combination use with nerve blocks. Interventional techniques can be highly effective but also have the potentiality to produce significant adverse effects. Many patients have factors which would be considered a near absolute contra-indication to the use of nerve blocks such as immuno-compromise or impairment of coagulation. Skillful application of peripheral neural blockade with ultrasound imaging broadens the options for providing optimal pain management. Palliat Care Res 2011; 6(1): 313-315
6.Surveillance of Usage of Drugs Corresponding to Doping, and Construction of Management System for Anti-doping
Naohiro Maeda ; Mariko Isaji ; Kanako Naoe ; Rika Yotufuji ; Yukihiro Ozaki ; Tetsurou Hashimoto ; Michi Iriyama ; Kouji Matsubara ; Mizue Shimozawa ; Kimiko Oda ; Norio Sakuta ; Masanori Niioka ; Michiya Kobayashi
Japanese Journal of Drug Informatics 2013;14(4):179-183
Objective: Doping is strongly prohibited in sports. Sports pharmacist was born in 2010 in Japan, and the anti-doping activity is expected. On the other hand, doping by arising from a lack of knowledge about prohibited substances in athletes, so-called “unwilling doping” is developing into a social issue. In this study, we investigated the percentage of prohibited substances in all drugs and prescriptions in a general hospital, to collect information to prevent an unwilling doping.
Methods: We constructed system to extract the drugs corresponding to prohibited substances in the prescription order entry system in Otaru Municipal Hospital, and we analyzed 3,306 prescriptions of 10 to 59 years old patients, from July to September 2010.
Results: Thirteen point five percent of our hospital drugs met definition of the prohibited substance. The number of prescriptions including prohibited substance(s) was 350 (10.6%), and its category was different from each age-group and clinical department.
Consideration: Because prohibited substances are included in approximately 10% of prescriptions, athletes are exposed to danger of becoming an unwilling doping. Pharmacist should be well informed about prohibited substances to prevent athletes from unwilling doping. And they should provide information promptly and adequately for athletes.
7.Relationships between Genetic Variations of PNPLA3, TM6SF2 and Histological Features of Nonalcoholic Fatty Liver Disease in Japan.
Norio AKUTA ; Yusuke KAWAMURA ; Yasuji ARASE ; Fumitaka SUZUKI ; Hitomi SEZAKI ; Tetsuya HOSAKA ; Masahiro KOBAYASHI ; Mariko KOBAYASHI ; Satoshi SAITOH ; Yoshiyuki SUZUKI ; Kenji IKEDA ; Hiromitsu KUMADA
Gut and Liver 2016;10(3):437-445
BACKGROUND/AIMS: It is important to determine the noninvasive parameters of histological features in nonalcoholic fatty liver disease (NAFLD). The aim of this study was to investigate the value of genetic variations as surrogate markers of histological features. METHODS: The parameters that affected the histological features of NAFLD were investigated in 211 Japanese patients with biopsy-proven NAFLD. The relationships between genetic variations in PNPLA3 rs738409 or TM6SF2 rs58542926 and histological features were analyzed. Furthermore, the impact of genetic variations that affected the pathological criteria for the diagnosis of nonalcoholic steatohepatitis (NASH) (Matteoni classification and NAFLD activity score) was evaluated. RESULTS: The fibrosis stage of PNPLA3 GG was significantly more progressive than that of CG by multiple comparisons. Multivariate analysis identified PNPLA3 genotypes as predictors of fibrosis of stage 2 or more, but the impact tended to decrease at stage 3 or greater. There were no significant differences among the histological features of the three genotypes of TM6SF2. PNPLA3 genotypes partly affected the definition of NASH by the NAFLD activity score, but TM6SF2 genotypes did not affect the definition of NASH. CONCLUSIONS: In Japanese patients with biopsy-proven NAFLD, PNPLA3 genotypes may partly affect histological features, including stage of fibrosis, but the TM6SF2 genotype does not affect histological features.
Asian Continental Ancestry Group
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Biological Markers
;
Classification
;
Diagnosis
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Fatty Liver*
;
Fibrosis
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Genetic Variation*
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Genotype
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Humans
;
Japan*
;
Multivariate Analysis
8.What Is the Most Effective Drug Delivery System for Cisplatin during the Treatment of Hepatic Tumors with Single-Session Transcatheter Chemotherapy? A Pilot Study.
Yusuke KAWAMURA ; Kenji IKEDA ; Taito FUKUSHIMA ; Yuya SEKO ; Tasuku HARA ; Hitomi SEZAKI ; Tetsuya HOSAKA ; Norio AKUTA ; Masahiro KOBAYASHI ; Satoshi SAITOH ; Fumitaka SUZUKI ; Yoshiyuki SUZUKI ; Yasuji ARASE ; Hiromitsu KUMADA
Gut and Liver 2013;7(5):576-584
BACKGROUND/AIMS: The aim of this study was to determine the pharmacodynamics of cisplatin following three different treatment procedures for intrahepatic arterial infusion therapy for hepatocellular carcinoma (HCC). METHODS: We divided 13 HCC patients into the following three groups: group A, lone injection of cisplatin (n=3); group B, combined injection of cisplatin and lipiodol, with embolization using small gelatin cubes (GCs) (n=5); and group C, injection of suspended lipiodol with cisplatin powder, with embolization using small GCs (n=5). In each group, the free cisplatin concentration in the hepatic vein was measured at 0, 5, 10, and 30 minutes. RESULTS: The mean free cisplatin concentrations were as follows. For group A, the mean was 48.58 microg/mL at 0 minute, 7.31 microg/mL at 5 minutes, 5.70 microg/mL at 10 minutes, and 7.15 microg/mL at 30 minutes. For the same time points, for group B, the concentrations were 8.66, 4.23, 3.22, and 1.65 microg/mL, respectively, and for group C, the concentrations were 4.81, 2.61, 2.52, and 1.75 microg/mL, respectively. The mean area under the curve (AUC)0-infinity for the free cisplatin concentration was 7.80 in group A, 2.48 in group B, and 2.27 in group C. The AUC0-infinity for the free cisplatin concentration gradually decreased, from group A to group C. CONCLUSIONS: These results indicate that the combination of lipiodol and small GCs may be useful for delaying cisplatin drainage from the liver.
Carcinoma, Hepatocellular
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Cisplatin
;
Drainage
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Drug Delivery Systems
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Ethiodized Oil
;
Gelatin
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Hepatic Veins
;
Humans
;
Liver
;
Pilot Projects
9.Noninvasive Assessment of Advanced Fibrosis Based on Hepatic Volume in Patients with Nonalcoholic Fatty Liver Disease.
Tatsuya HAYASHI ; Satoshi SAITOH ; Kei FUKUZAWA ; Yoshinori TSUJI ; Junji TAKAHASHI ; Yusuke KAWAMURA ; Norio AKUTA ; Masahiro KOBAYASHI ; Kenji IKEDA ; Takeshi FUJII ; Tosiaki MIYATI ; Hiromitsu KUMADA
Gut and Liver 2017;11(5):674-683
BACKGROUND/AIMS: Noninvasive liver fibrosis evaluation was performed in patients with nonalcoholic fatty liver disease (NAFLD). We used a quantitative method based on the hepatic volume acquired from gadoxetate disodium-enhanced (Gd-EOB-DTPA-enhanced) magnetic resonance imaging (MRI) for diagnosing advanced fibrosis in patients with NAFLD. METHODS: A total of 130 patients who were diagnosed with NAFLD and underwent Gd-EOB-DTPA-enhanced MRI were retrospectively included. Histological data were available for 118 patients. Hepatic volumetric parameters, including the left hepatic lobe to right hepatic lobe volume ratio (L/R ratio), were measured. The usefulness of the L/R ratio for diagnosing fibrosis ≥F3–4 and F4 was assessed using the area under the receiver operating characteristic (AUROC) curve. Multiple regression analysis was performed to identify variables (age, body mass index, serum fibrosis markers, and histological features) that were associated with the L/R ratio. RESULTS: The L/R ratio demonstrated good performance in differentiating advanced fibrosis (AUROC, 0.80; 95% confidence interval, 0.72 to 0.88) from cirrhosis (AUROC, 0.87; 95% confidence interval, 0.75 to 0.99). Multiple regression analysis showed that only fibrosis was significantly associated with the L/R ratio (coefficient, 0.121; p<0.0001). CONCLUSIONS: The L/R ratio, which is not influenced by pathological parameters other than fibrosis, is useful for diagnosing cirrhosis in patients with NAFLD.
Body Mass Index
;
Fibrosis*
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Humans
;
Liver Cirrhosis
;
Magnetic Resonance Imaging
;
Methods
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Non-alcoholic Fatty Liver Disease*
;
Retrospective Studies
;
ROC Curve
10.Transcatheter Arterial Chemotherapy with Miriplatin for Hepatocellular Carcinoma Patients with Chronic Renal Failure: Report of Three Cases.
Norihiro IMAI ; Kenji IKEDA ; Yuya SEKO ; Yusuke KAWAMURA ; Hitomi SEZAKI ; Tetsuya HOSAKA ; Norio AKUTA ; Masahiro KOBAYASHI ; Satoshi SAITOH ; Fumitaka SUZUKI ; Yoshiyuki SUZUKI ; Yasuji ARASE ; Hiromitsu KUMADA
Gut and Liver 2013;7(2):246-251
Miriplatin is a novel lipophilic platinum complex that was developed to treat hepatocellular carcinoma (HCC). Although HCC patients frequently have coexisting chronic renal failure, little prospective data are available regarding the clinical toxicity of chemotherapeutic agents used to treat HCC patients with chronic renal failure. In a phase II study, the plasma concentration of total platinum in patients who received miriplatin was very low, and no severe renal toxicity caused by miriplatin injection was reported. Here, we present three cases of HCC with stage 4 chronic renal failure who received transcatheter arterial chemotherapy with miriplatin. All cases were male, ages 72, 84, and 83 years, and had serum creatinine levels of 2.3, 1.6, and 1.9 mg/dL, respectively. Their estimated glomerular filtration rates were 21.9, 20.3, and 22.2 mL/min, respectively. All cases were treated for unresectable HCC with transcatheter arterial chemotherapy with miriplatin. No serious adverse events were observed, and serum creatinine levels did not elevate, even in the patient who experienced renal failure caused by cisplatin administration. These results might suggest that transcatheter arterial chemotherapy with miriplatin can be safely used in HCC patients with chronic renal failure.
Carcinoma, Hepatocellular
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Cisplatin
;
Creatinine
;
Glomerular Filtration Rate
;
Humans
;
Kidney Failure, Chronic
;
Male
;
Organoplatinum Compounds
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Plasma
;
Platinum
;
Renal Insufficiency