1.Injury profile in male collegiate rugby union players
Ryo OGAKI ; Ayane OGURA ; Hyunjae KIM ; Taiki MURAKAMI ; Tatsuya SHIMASAKI ; Masahiro TAKEMURA
Japanese Journal of Physical Fitness and Sports Medicine 2023;72(3):227-241
		                        		
		                        			
		                        			The purpose of this study was to describe the incidence, severity, and burden of injuries in Japanese male collegiate rugby union players. Initially, 170 male collegiate rugby union players from one university club were registered in this epidemiological surveillance study. The occurrence of injuries was recorded by a team medical staff during the 2017–2021 playing seasons. The incidence of injuries was 6.87 injuries/1000 h. This incidence was significantly higher during matches (100.37 injuries/1000 h) than that during training (3.63 injuries/1000 h). The severity of injuries was 31.0 days, and there were no significant differences between matches and training, or forwards and backs. The burden of injuries was 213.1 days/1000 h. This burden was significantly higher during matches (2887.8 days/1000 h) compared to training (120.1 days/1000 h). Matches had higher incidence of ankle sprain/ligament injuries (15.80 injuries/1000 h) and concussion (15.36 injuries/1000 h). The most common injury site was the ankle (1.24 injuries/1000 h). However, the greatest severity and burden were observed for knee injuries (severity: 59.1 days, burden: 48.6 days/1000 h). Furthermore, the greatest burden of injury type was knee sprain/ligament injuries (39.4 days/1000 h). In addition, the incidence of acromioclavicular joint injury was significantly higher in forwards, whereas hamstring strain was significantly higher in backs. The common injury mechanisms identified were being tackled (16.0%) and tackling (14.7%), followed by overuse (12.1%). In order to improve the player welfare of the Japanese collegiate rugby union players, it is necessary to work on the prevention strategy considering the injury profile.
		                        		
		                        		
		                        		
		                        	
2.Evaluation of Pharmaceutical Characteristics and Carer Usability of Antiglaucoma Ophthalmic Solutions
Rika TANAKA ; Masahiro MURAKAMI ; Megumi YASUDA ; Manabu AMANO
Japanese Journal of Drug Informatics 2020;22(3):147-152
		                        		
		                        			
		                        			Objective: Glaucoma is the most frequent cause of blindness in Japan and is primarily treated using IOP-lowering ophthalmic solutions. Although the patients themselves frequently instill ophthalmic solutions, instillation by caregivers may be necessary for various reasons. Therefore, we evaluated pharmaceutical characteristics of antiglaucoma ophthalmic solutions and their usability from the caregivers' viewpoint.Methods: Five dorzolamide hydrochloride-timolol maleate ophthalmic solutions and 2 travoprost-timolol maleate ophthalmic solutions were evaluated concerning the pharmaceutical characteristics and subjective squeezability rated by adults aged 20 years or above.Results: Among the dorzolamide hydrochloride-timolol maleate compounding ophthalmic solutions, the squeeze force was the lowest in COSOPT® ophthalmic solution (11.8 N), and DORMOLOL® combination ophthalmic solution NITTEN was rated highest, with 68.2% of the subjects placing it within the top 3 levels of a 7-level scale. Of the travoprost-timolol maleate ophthalmic solutions, the squeeze force was 9.8 N, lower than the pioneer drug, in TraTimo® combination ophthalmic solution NITTO, which was also rated in the top 3 levels by 90.3% of the subjects. A strong negative correlation was observed between the squeeze force and squeezability.Conclusion: In instillation by caregivers, the squeeze force was shown to be correlated with subjective squeezability as in instillation by patients themselves. This study provided information concerning the usability of ophthalmic solutions from the caregivers' viewpoint. For the future, it is necessary to select ophthalmic solutions from the caregivers' as well as the patients' viewpoints by utilizing information obtained in this study.
		                        		
		                        		
		                        		
		                        	
3.Hooks at the Upper Instrumented Vertebra Can Adjust Postoperative Shoulder Balance in Patients with Adolescent Idiopathic Scoliosis: 5 Years or More of Follow-up
Shingo KUROYA ; Tsutomu AKAZAWA ; Toshiaki KOTANI ; Tsuyoshi SAKUMA ; Shohei MINAMI ; Yoshiaki TORII ; Tasuku UMEHARA ; Masahiro IINUMA ; Kenichi MURAKAMI ; Sumihisa ORITA ; Kazuhide INAGE ; Yawara EGUCHI ; Kazuki FUJIMOTO ; Yasuhiro SHIGA ; Junichi NAKAMURA ; Gen INOUE ; Masayuki MIYAGI ; Wataru SAITO ; Seiji OHTORI ; Hisateru NIKI
Asian Spine Journal 2019;13(5):793-800
		                        		
		                        			
		                        			STUDY DESIGN: A retrospective cohort study. PURPOSE: This study aims to investigate postoperative shoulder imbalance (PSI) ≥5 years postoperatively in patients who underwent posterior spinal fusion using hooks at the upper instrumented vertebra (UIV) for Lenke type 1 adolescent idiopathic scoliosis (AIS). OVERVIEW OF LITERATURE: Studies have reported PSI due to excessive correction of the main thoracic curve. METHODS: We examined 56 patients with AIS who underwent a posterior spinal fusion with hooks at the UIV from 2004 to 2010. Of these, we enrolled 14 patients who underwent surgery, at least, 5 years ago. X-rays and Scoliosis Research Society-22 (SRS-22) questionnaire were administered. To evaluate the shoulder balance, T1 vertebral tilt angle (T1 tilt), clavicle angle, and radiographic shoulder height (RSH) were measured. PSI was considered as the absolute value of the postoperative RSH being ≥20 mm. Based on radiographs obtained immediately postoperatively, we divided patients into two groups as follows: the balanced group (absolute value of RSH <20 mm) and imbalanced group (absolute value of RSH ≥20 mm). RESULTS: The frequency of PSI was 28.6% immediately postoperatively, 0% 2 years postoperatively, and 7.1% at the last follow-up. In the balanced group, PSI did not occur even at 2 years postoperatively or at the last follow-up. In the imbalanced group, PSI was improved in all patients 2 years postoperatively and all patients, except one patient, at the last follow-up. No significant differences were noted in the frequency of distal adding-on at 2 years postoperatively or the last follow-up between the balanced group and the imbalanced group. We observed moderate negative correlations between the absolute value of T1 tilt and the SRS-22 pain and satisfaction at the last follow-up. CONCLUSIONS: Hooks at the UIV could adjust the shoulder balance to avoid long-term PSI in patients with AIS.
		                        		
		                        		
		                        		
		                        	
4.Comparative Evaluation of the Pharmaceutical Properties of Original and Generic Betamethasone Ophthalmic Solution
Masahiro MURAKAMI ; Chihiro OHTA ; Megumi YASUDA ; Manabu AMANO
Japanese Journal of Drug Informatics 2019;20(4):227-231
		                        		
		                        			
		                        			Objective: In this study, pharmaceutical properties were compared between the original and generic ophthalmic solutions containing betamethasone.Methods: The squeeze force, drop weight, surface tension, pH, kinematic viscosity, and total number of drops were measured. The drop volume was calculated from the drop weight and specific gravity. Information on preservatives contained in each product was collected from package inserts.Results: There was a significant difference in the squeeze force between the original and generic drugs. The pH and kinematic viscosity did not differ between the drugs. The drop volume was in the range of 30.3 to 47.2 μL, and the surface tension ranged between 33.7 and 65.2 mN/N. The total number of drops was approximately 100 in the original drug, being the lowest.Conclusion: The results of this study showed that the squeeze forces of all generic products but RINBETA PF, which was contained in a specific container, were smaller than that of the original product. The drop volumes of 2 generic products were ≥ 15-μL smaller than that of the original product, but they were within the permissible range. The maximum difference in the surface tension was approximately 33 mN/N, suggesting that drug solution relatively frequently overflows from the eyes. The total number of drops for all generic products was greater than that for the original product, suggesting that the former can be used at a higher frequency. Based on these results, pharmacists must select products in accordance with individual patients.
		                        		
		                        		
		                        		
		                        	
5.A Survey on the Use of External Medications and Injection Drugs Conducted by Persons Visiting in a Health Insurance Pharmacy
Kana HASHIMOTO ; Narumi TOYA ; Mihee PARK ; Akihiko IKEMOTO ; Hirohumi OHNISHI ; Masahiro MURAKAMI ; Masako OHNO ; Manabu AMANO
Japanese Journal of Social Pharmacy 2018;37(2):102-108
		                        		
		                        			
		                        			Since attention is sometimes required with regard to the use and handling of external medications or injection drugs in drug therapy, patients may have a feeling of “inconvenience”. We, therefore, focused on a feeling of “inconvenience when using” external medications and injection drugs, and conducted a questionnaire survey to investigate the level of awareness and current status of using assist devices that can effectively reduce such inconvenience. The survey took place at a pharmacy, and involved interviews using a questionnaire. Of the 197 respondents, valid responses were obtained from 147 individuals (74.6%). As the results, 25.9% of individuals using external medications or injection drugs responded ‘yes’ concerning the feeling of “inconvenience when using” them. In addition, 39.4% of individuals using eye drops and 10.5% of those using insulin similarly responded. However, only 10.9% knew of the availability of assist devices that are expected to reduce the inconvenience. The results revealed that a certain number of people feel the “inconvenience” of external dosage forms investigated in this study, suggesting the need for pharmacists to consider that patients may have problems using their medications, and to recommend and support the use of assist devices that can be operated by patients.
		                        		
		                        		
		                        		
		                        	
6.Laparoscopic Resection of a Jejunal Inflammatory Fibroid Polyp that Caused Occult Gastrointestinal Bleeding, Diagnosed via Capsule Endoscopy and Double-Balloon Enteroscopy: A Case Report.
Chizu KAMEDA ; Hideaki MIWA ; Ryohei KAWABATA ; Daiki MARUKAWA ; Masahiro MURAKAMI ; Shingo NOURA ; Junzo SHIMIZU ; Junichi HASEGAWA
Clinical Endoscopy 2018;51(4):384-387
		                        		
		                        			
		                        			An inflammatory fibroid polyp (IFP) is a mesenchymal tumor of the gastrointestinal tract. IFPs in the small intestine are the most frequently detected with symptoms, such as abdominal pain and tarry stool due to intussusception. Accordingly, few studies have reported jejunal IFP as a cause of occult gastrointestinal bleeding (OGIB) diagnosed via both of capsule endoscopy (CE) and double-balloon enteroscopy (DBE). A 68-year-old woman presented with a progression of anemia and a positive fecal occult blood test result. Esophagogastroduodenoscopy and total colonoscopy findings were unremarkable. CE revealed a tumor with bleeding in the jejunum. DBE also revealed a jejunal polypoid tumor. Bleeding from the tumor seemed to have caused anemia. The patient underwent partial laparoscopic resection of the jejunum, including resection of the tumor. The tumor was histopathologically diagnosed as IFP. To our knowledge, this is the first reported case of laparoscopic resection of jejunal IFP with OGIB diagnosed via CE and DBE preoperatively.
		                        		
		                        		
		                        		
		                        			Abdominal Pain
		                        			;
		                        		
		                        			Aged
		                        			;
		                        		
		                        			Anemia
		                        			;
		                        		
		                        			Capsule Endoscopy*
		                        			;
		                        		
		                        			Colonoscopy
		                        			;
		                        		
		                        			Double-Balloon Enteroscopy*
		                        			;
		                        		
		                        			Endoscopy, Digestive System
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Gastrointestinal Tract
		                        			;
		                        		
		                        			Hemorrhage*
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Intestine, Small
		                        			;
		                        		
		                        			Intussusception
		                        			;
		                        		
		                        			Jejunum
		                        			;
		                        		
		                        			Laparoscopy
		                        			;
		                        		
		                        			Leiomyoma*
		                        			;
		                        		
		                        			Occult Blood
		                        			;
		                        		
		                        			Polyps*
		                        			
		                        		
		                        	
7.A Survey on the Use of External Medications and Injection Drugs Conducted by Persons Visiting in a Health Insurance Pharmacy
Kana HASHIMOTO ; Narumi TOYA ; Mihee PARK ; Akihiko IKEMOTO ; Hirohumi OHNISHI ; Masahiro MURAKAMI ; Masako OHNO ; Manabu AMANO
Japanese Journal of Social Pharmacy 2018;37(2):102-108
		                        		
		                        			
		                        			Since attention is sometimes required with regard to the use and handling of external medications or injection drugs in drug therapy, patients may have a feeling of “inconvenience”. We, therefore, focused on a feeling of “inconvenience when using” external medications and injection drugs, and conducted a questionnaire survey to investigate the level of awareness and current status of using assist devices that can effectively reduce such inconvenience. The survey took place at a pharmacy, and involved interviews using a questionnaire. Of the 197 respondents, valid responses were obtained from 147 individuals (74.6%). As the results, 25.9% of individuals using external medications or injection drugs responded ‘yes’ concerning the feeling of “inconvenience when using” them. In addition, 39.4% of individuals using eye drops and 10.5% of those using insulin similarly responded. However, only 10.9% knew of the availability of assist devices that are expected to reduce the inconvenience. The results revealed that a certain number of people feel the “inconvenience” of external dosage forms investigated in this study, suggesting the need for pharmacists to consider that patients may have problems using their medications, and to recommend and support the use of assist devices that can be operated by patients.
		                        		
		                        		
		                        		
		                        	
8.Questionnaire Survey on the Level of Awareness of the National Policies and Projects Concerning Dementia Measures among Chain Community Pharmacists
Masahiro MURAKAMI ; Rika TANAKA ; Megumi YASUDA ; Manabu AMANO
Japanese Journal of Social Pharmacy 2017;36(2):118-125
		                        		
		                        			
		                        			To smoothly proceed with the national policies and projects concerning dementia measures, it is important that pharmacists who take care of patient in clinical practice sufficiently understand its contents. In this study, we conducted a questionnaire survey involving chain community pharmacists to investigate the level of awareness concerning these policies and projects. Subjects were 446 chain community pharmacists. The questionnaire consisted of 17 items (e.g. the level of awareness regarding the “Comprehensive Strategy to Accelerate Dementia Measures (New Orange Plan)”, “Dementia Supporters Caravan Program (Caravan Program)”, and “Dementia training certified pharmacist program (Certification program)”). The questionnaires were filled out anonymously. The levels of awareness concerning the “New Orange Plan” and “Caravan Program” were 34.7% and 48.9%, respectively. Sixty-one percent of subjects attended a “Dementia Supporter Training Lecture”, 30.4% of whom were wearing the “orange ring”. The levels of awareness and the hope of acquisition concerning the “Certification program” were 47.8% and 79.8%, respectively. To achieve the purpose of “contribution to early detection of dementia by pharmacist” of the “New Orange Plan”, it is necessary to conducting the workshop and to create an opportunity to come in contact with dementia patients. It is also important to recognize that it is necessary to enlighten the meaning of wearing an “orange ring” and to enlarge the circle of dementia supporters. In addition, it is thought that more dementia patients can be supported in the community by increasing the levels of awareness concerning the “Certification program” and giving appropriate advice and response.
		                        		
		                        		
		                        		
		                        	
9.Examination Regarding the Simple Suspension Method using Oral Anticancer Drugs
Masahiro Murakami ; Yoshihiko Ikemoto ; Narumi Toya ; Mihi Paku ; Miyuki Okuyama ; Kazuko Hatakeyama ; Satoko Katsuragi ; Masako Ohno ; Hiroyuki Hichiya ; Yoshito Zamami ; Chikaaki Muro ; Takeshi Kimura ; Naomi Kurata ; Manabu Amano
Japanese Journal of Social Pharmacy 2016;35(1):34-37
		                        		
		                        			
		                        			To administer oral anticancer drugs safely, the simple suspension method has been introduced in many hospitals. Therefore, concerning drugs for which it is unclear whether or not this method is applicable, testing must be able to be conducted at any time. In this study, we investigated 20 oral anticancer drugs to expand information on the application of the simple suspension method. Disintegration/suspension and permeability tests were conducted, as described in the 3rd version of the Tube Administration Handbook for Oral Drugs. All products were disintegrated/suspended after 10 minutes. On permeability tests, there was no residue in any tube for tubal feeding. On the final evaluation, the products were regarded as suitable (grade 1). Bicalutamide tablets (80 mg, TCK and KN), which were analyzed in this study, were regarded as suitable (grade 1) on the final evaluation. On the other hand, the simple suspension method is not applicable for a brand-name drug, Casodex® tablets (80 mg). This may be related to the different additives. Furthermore, the results suggest that, even when the simple suspension method is not applicable for a brand-name drug, it may become applicable for generic drugs. This may provide a new merit for promoting the use of generic drugs.
		                        		
		                        		
		                        		
		                        	
10.Comparison of Usefulness of Switch OTC Eye Drops among Products
Masahiro Murakami ; Mayumi Nakatani ; Megumi Yasuda ; Manabu Amano
Japanese Journal of Drug Informatics 2016;18(3):209-213
		                        		
		                        			
		                        			Objective: The squeezing force and one-drop weight, suggested to directly influence adherence, were measured in 6 eye drop products containing a switch OTC drug, ketotifen fumarate, to investigate useful information for product selection.
Methods: The squeeze force, one drop weight, and pH were measured using a digital force gauge, analytical balance, and pH meter, respectively.  Information on additives contained in each product was collected from package inserts.  For the total number of drops, the number per 10 mL was calculated from the obtained value.
Results: The maximum squeeze force was 14.8 N of Irice AG Guard, and the one drop weight (33.2 mg) of Raferusa®AL was the minimum.  The total number of drops per 10 mL was 215 in Sutto eyes Z, being the minimum.  The pH was in the range of 5.2-5.7.  On comparison of additives among the products, a cooling agent was contained in only 2 products.
Discussion: Since the squeeze force was in the range of 5.3-14.8 N, it was less likely that the squeeze force reduces usability.  Since the one-drop weights of 2 products were more than 10 mg lower than the weights of the other products, the dose may be insufficient and the effect may not be attained.  The pH was within the acceptable range in all products.  Two products contain a cooling agent as an additive, and this has to be explained beforehand.  Information related to usability, actual feeling of the effect, and sense of the use of the products containing ketotifen fumarate was collected.
		                        		
		                        		
		                        		
		                        	
            

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