1.A Double Connection of Mixed Total Anomalous Pulmonary Venous Connection : Successful Patch Closure of Residual Shunt
Norito MIURA ; Tomohiro NAKATA ; Maiko TACHI ; Shoichi SUEHIRO ; Kensuke IMAI ; Koji SHIMIZU ; Hiromi WADA ; Teiji ODA
Japanese Journal of Cardiovascular Surgery 2022;51(1):6-10
		                        		
		                        			
		                        			Double drainage sites from a common venous confluence of the pulmonary veins of a mixed total anomalous pulmonary venous connection is a rare condition that is called a “double connection.” There have been very few reports of reoperation for minor drainage of a double connection. A 28-year-old male with double connection type (Ia: major drainage + IIa: minor drainage) mixed total anomalous pulmonary venous connection (TAPVC) was referred to our institution. He had undergone TAPVC type Ia (major drainage) repair at the age of 1 year. Postoperative enhanced computed tomography showed residual TAPVC IIa (minor drainage) at the age of 15 years. Therefore, the definitive diagnosis was double connection-type mixed TAPVC. Residual shunt gradually increased, and cardiac catheterization revealed an increased pulmonary blood flow/systemic blood flow ratio. Echocardiography showed enlarged shunt vessel and mild tricuspid regurgitation. Catheter intervention was considered too risky and, therefore, we performed patch closure of the residual shunt through a right atriotomy. The postoperative course was uneventful, and follow-up computed tomography showed shrinkage of the shunt vessel without any thromboembolic events.
		                        		
		                        		
		                        		
		                        	
2.Contributions of the Medical Affairs Department to Healthcare Professionals and the Effects of the New Coronavirus Disease 2019 Pandemic on the Contributions
Yukio MORITSUGU ; Koji WADA ; Shunya IKEDA
Japanese Journal of Drug Informatics 2022;23(4):166-177
		                        		
		                        			
		                        			Objective: The purpose of this study was to assess the opinions of healthcare professional regarding the contributions of the Medical Affairs department. Furthermore, we aimed to identify factors influencing and reasons for the contributions in the new coronavirus disease 2019 (COVID-19) pandemic situation.Design/Methods: A web-based survey was conducted among healthcare professionals (Key Opinion Leader/Key Thought Leader, KOL/KTL) who had multiple contacts with the Medical Affairs department, Japan.Results: The responses of 141 KOL/KTLs in Japan were collected; 77.3% of the respondents indicated that the contributions of the Medical Affairs department exceeded their expectations (achieved the expected level of contribution). The most common responses were “the identification of unmet medical needs” and “the dissemination of medical and scientific information, providing advanced medical and scientific information;” other responses included “promoting sales of the company's drugs.” The requests from KOL/KTLs regarding quality were “knowledge about biological and clinical statistics” and “proposal and quick response ability from the perspective of medical staff and patients,” but these responses were partially different between physicians and pharmacists. COVID-19 has resulted in substantial changes, for example, “face-to-face” interactions have significantly decreased from 91.5 to 50.4% and “Online” interactions have significantly increased from 20.6 to 70.9%. However, the effects of the declaration of emergency state could not be identified. The KOL/KTLs requested to make the meeting times more appropriate, conduct in-depth two-way discussions, provide latest information, and discuss about professional manners and behaviors.Conclusion: In summary, regardless of the changes in the types of activities caused by COVID-19, the Medical Affairs department has made substantial contributions to healthcare professionals, who highly appreciated them. Furthermore, depending on responses of individuals whose expectations could not be met, areas of improvements have been suggested.
		                        		
		                        		
		                        		
		                        	
3.Predictive Factors for Future Onset of Reflux Esophagitis: A Longitudinal Case-control Study Using Health Checkup Records
Yuzuru TOKI ; Ryo YAMAUCHI ; Eizo KAYASHIMA ; Kyoichi ADACHI ; Kiyohiko KISHI ; Hiroshi SUETSUGU ; Tsuneya WADA ; Hiroyoshi ENDO ; Hajime YAMADA ; Satoshi OSAGA ; Takeshi KAMIYA ; Koji NAKADA ; Katsuhiko IWAKIRI ; Ken HARUMA ; Takashi JOH
Journal of Neurogastroenterology and Motility 2022;28(1):86-94
		                        		
		                        			 Background/Aims:
		                        			Although risk factors of reflux esophagitis (RE) have been investigated in numerous cross-sectional studies, little is known about predictive factors associated with future onset of RE. We investigated time courses of clinical parameters before RE onset by a longitudinal case-control study using health checkup records. 
		                        		
		                        			Methods:
		                        			We used health checkup records between April 2004 and March 2014 at 9 institutions in Japan. A multivariate logistic regression analysis was performed to evaluate associations of baseline clinical parameters with RE. The time courses of the clinical parameters of RE subjects were compared with those of non-RE subjects by the mixed-effects models for repeated measures analysis or longitudinal multivariate logistic analysis. 
		                        		
		                        			Results:
		                        			Initial data were obtained from 230 056 individuals, and 2066 RE subjects and 4132 non-RE subjects were finally included in the analysis. Body mass index, alanine aminotransferase, smoking, acid reflux symptoms, hiatal hernia, and absence of atrophic gastritis at baseline were independently associated with RE. The time courses of body mass index, fasting blood sugar, triglyceride, aspartate aminotransferase, alanine aminotransferase, γ-glutamyl transpeptidase, percentages of acid reflux symptoms, feeling of fullness, and hiatal hernia in the RE group were significantly worse than in the non-RE group. 
		                        		
		                        			Conclusions
		                        			The RE group displayed a greater worsening of the clinical parameters associated with lifestyle diseases, including obesity, diabetes, hyperlipidemia, and fatty liver for 5 years before RE onset compared with the non-RE group. These results suggest that RE is a lifestyle disease and thus lifestyle guidance to at-risk person may help to prevent RE onset. 
		                        		
		                        		
		                        		
		                        	
4.Factors associated with adults' actions to confirm their own rubella immune status in Japan's drive toward rubella elimination: Cross-sectional online survey of non-healthcare workers in their 20s to 40s.
Masataro NORIZUKI ; Ai HORI ; Koji WADA
Environmental Health and Preventive Medicine 2021;26(1):77-77
		                        		
		                        			BACKGROUND:
		                        			Rubella outbreaks occurred among adults in Japan in 2013-2014 and 2018-2019 due to immunity gaps. In response and aiming at rubella elimination by 2020, the government introduced countermeasures comprising supplementary immunization activities for voluntary testing of adult non-healthcare-related workers and vaccination of susceptible individuals. However, as of October 2020, rubella immunity testing and vaccination rates remained low. This study was conducted to identify factors associated with adults voluntarily confirming their rubella immune status, to help develop effective promotion activities for hard-to-reach and left-behind populations.
		                        		
		                        			METHODS:
		                        			In this cross-sectional study, a general population sample of non-healthcare workers aged 20-49 years in Japan completed an online survey in November 2020. Univariate analysis was performed to examine associations of specific actions taken to confirm rubella immune status with social background characteristics, knowledge of rubella, and attitude to testing and vaccination. Log binomial regression analysis was performed to explore the associations following adjustment for social background characteristics.
		                        		
		                        			RESULTS:
		                        			Among 1,854 respondents (927 men, 927 women), only 23.4% of men and 39.4% of women in their 20s to 40s have taken some action related to rubella prevention. Three major factors were associated with the targeted population having taken voluntary action: (1) knowing about testing for confirmation of immunity status (adjusted odds ratio [AOR] 4.29 men, 2.89 women), the rubella outbreak in 2013 among men in their 20s to 40s (AOR 2.79 men, 1.64 women), and congenital rubella syndrome (AOR 1.89 men, 3.10 women); (2) having acquaintances who were vaccinated against or tested for rubella (AOR 2.98 men, 1.95 women); and (3) having a positive attitude toward influenza vaccination (AOR 2.48 men, 1.83 women). Marriage, desire for pregnancy, and having children were weakly associated with taking action.
		                        		
		                        			CONCLUSIONS
		                        			Currently, insufficient voluntary action is being taken by high-risk adult populations to close the identified immunity gaps. In this last mile to rubella elimination, our findings and suggested potential interventions via annual health check-ups and occupational health and public health initiatives could prove helpful in developing further countermeasures that actively promote and implement supplementary immunization activities targeting all adult generations.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Cross-Sectional Studies
		                        			;
		                        		
		                        			Female
		                        			;
		                        		
		                        			Health Knowledge, Attitudes, Practice
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Japan
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Rubella/prevention & control*
		                        			;
		                        		
		                        			Vaccination/statistics & numerical data*
		                        			;
		                        		
		                        			Young Adult
		                        			
		                        		
		                        	
5.Stress distribution of cementless stems with unique flanges in a rectangular cross-section: thermoelastic stress imaging study
Hironori TAKEHASHI ; Tomofumi NISHINO ; Hajime MISHIMA ; Hiroshi WADA ; Masashi YAMAZAKI ; Koji HYODO
Journal of Rural Medicine 2021;16(2):83-90
		                        		
		                        			
		                        			Objective: In this study, thermoelastic stress analysis was conducted to clarify the surface stress distribution of a femur in which a BiCONTACT E stem was inserted. The contact sites between the stem and femur were examined to investigate the association with the range of stress distribution.Materials and Methods: BiCONTACT E was set up using two synthetic femurs that mimic the morphology and mechanical properties of living bone. Preoperative planning was performed using three-dimensional imaging software. The synthetic bone was placed in a sample holder. After the stem was implanted into the synthetic bone, computed tomography imaging was performed. The contact sites between the stem and the cortical part of the synthetic bone were examined using the imaging software. Subsequently, thermoelastic stress measurements were performed on the sample.Results: The results of thermoelastic stress analysis indicated a minimum change in the sum of principal stresses [Δ (σ1+σ2)] on the medial side and a maximum change in the sum of principal stresses on the lateral side. Thus, no minimum change was observed in the sum of the principal stresses at the maximum proximal part. It is reasonable to assume that the use of a cementless stem can inevitably lead to bone atrophy in the proximal part of the femur. The contact sites between the stem and femur were also investigated, and the results of the study clearly and quantitatively demonstrated the correlation of the contact sites with a range of stress distributions.Conclusion: The surface stress distribution of a femur, in which a BiCONTACT E stem was inserted, was clarified. The contact sites between the stem and femur were also investigated. Furthermore, the correlation between these results and clinical bone response was investigated in this study.
		                        		
		                        		
		                        		
		                        	
6.Mortality by occupation and industry among Japanese men in the 2015 fiscal year.
Hirokazu TANAKA ; Taketo TANAKA ; Koji WADA
Environmental Health and Preventive Medicine 2020;25(1):37-37
		                        		
		                        			BACKGROUND:
		                        			Although previous studies have underscored some unique inequalities in occupational mortality in Japan, many of these trends have been dramatically altered during recent decades. We analyzed mortality data by occupation and industry in Japan, to determine whether differences remained by the mid-2010s for men in working-age population.
		                        		
		                        			METHODS:
		                        			We calculated age-standardized all-cause and cause-specific mortality, according to occupation and industry, among men aged 25-64 years in the 2015 fiscal year (1 April 2015 to 31 March 2016). Occupational and industry-specific categories were defined using the Japan Standard Occupational Classification and Japan Standard Industrial Classification, respectively. Age-standardized mortality rates were computed using 5-year age intervals. Mortality rate ratios adjusted for age and 95% confidence intervals (CIs) were estimated using Poisson regression. Cause-specific deaths were classified into four broad groups (cancers [C00-D48], cardiovascular diseases [I00-I99], external causes [V01-Y98], and all other diseases) based on the International Statistical Classification of Diseases 10th Revision (ICD-10).
		                        		
		                        			RESULTS:
		                        			Clear mortality differences were identified by both occupation and industry among Japanese males. All-cause mortality ranged from 53.7 (clerical workers) to 240.3 (service workers) per 100,000 population for occupation and from 54.3 (workers in education) to 1169.4 (workers in mining) for industry. In relative terms, service workers and agriculture, forestry, and fishing workers had 2.89 and 2.50 times higher all-cause mortality than sales workers. Administrative and managerial workers displayed higher mortality risk (1.86; 95% CI 1.76-1.97) than sales workers. Similar patterns of broad cause-specific mortality inequality were identified in terms of both absolute and relative measures, and all broad cause-specific deaths contributed to the differences in mortality by occupation and industry.
		                        		
		                        			CONCLUSIONS
		                        			Substantial differences in mortality among Japanese male workers, according to occupation and industry, were still present in 2015.
		                        		
		                        		
		                        		
		                        			Adult
		                        			;
		                        		
		                        			Cause of Death
		                        			;
		                        		
		                        			Humans
		                        			;
		                        		
		                        			Industry
		                        			;
		                        		
		                        			statistics & numerical data
		                        			;
		                        		
		                        			Japan
		                        			;
		                        		
		                        			epidemiology
		                        			;
		                        		
		                        			Male
		                        			;
		                        		
		                        			Middle Aged
		                        			;
		                        		
		                        			Occupations
		                        			;
		                        		
		                        			statistics & numerical data
		                        			;
		                        		
		                        			Socioeconomic Factors
		                        			
		                        		
		                        	
7.A Case of Type A Acute Aortic Dissection in an Elderly Woman with Immune Thrombocytopenia Who Underwent Replacement of the Ascending Aorta and Aortic Arch and Later Required Aortic Root Replacement for Redissection of the Aortic Root
Takanori Kono ; Toru Takaseya ; Satoshi Kikusaki ; Keishi Hashimoto ; Yuichiro Hirata ; Kumiko Wada ; Koji Akasu ; Satoru Tobinaga ; Hidetoshi Akashi ; Hiroyuki Tanaka
Japanese Journal of Cardiovascular Surgery 2016;45(1):57-61
		                        		
		                        			
		                        			We report a case of type A acute aortic dissection in an elderly woman with immune thrombocytopenia (ITP) who underwent replacement of the ascending aorta and aortic arch and later required aortic root replacement for redissection of the aortic root one month after her initial surgery. She was an 86-year-old woman with severe mitral regurgitation, and surgery was contraindicated because of her age and ITP. In October 2014, the patient presented with back pain. Computed tomography confirmed the diagnosis of her condition as type A acute aortic dissection, and she was immediately transferred to our hospital. Because echocardiography showed severe aortic regurgitation, severe mitral regurgitation, and moderate tricuspid regurgitation, we performed replacement of the ascending aorta and aortic arch, mitral valve repair, and tricuspid annuloplasty. We used Bioglue to fuse the false lumen of the type A acute aortic dissection and used a Teflon felt sandwich for the proximal anastomosis technique. Respiratory support was discontinued 91 h after her first operation ; however, 30 days after surgery, she developed a to-and-fro murmur-a sign of the progression of heart failure. Echocardiography showed aggravation of aortic regurgitation, and computed tomography showed aortic root redissection ; therefore, 39 days after the initial surgery, we performed aortic root replacement. During the operation, we found the entry under the proximal anastomosis with an almost semicircle form at the right coronary cusp to the noncoronary cusp, and the dissection extended close to the right coronary artery ; thus, we performed bypass to the right coronary artery. Pathologic findings did not establish a causal association between the redissection and Bioglue, and we believed the fragility of the tissue and the selection of the surgical procedure to be the cause of redissection. The patient was transferred to another hospital when she was able to walk and eat, which was 121 days after her first operation. The patient required 50 units of platelet transfusion during her first and second operations, but her bleeding was easily controlled during surgery. She needed two procedures of pericardium drainage for pericardiac effusion and cardiac tamponade, which may relate to ITP. The diagnosis of redissection of the aortic root was made 30 days after the patient's first operation, on the basis of exacerbation of the to-and-fro murmur. Here, we emphasize the clinical importance of basic observations over time, such as auscultation, that are liable to be overlooked in the intensive care unit.
		                        		
		                        		
		                        		
		                        	
8.“Ten Minimum Requirement”: A Management Tool to Improve Quality of Healthcare Services in Lao People Democratic Republic (Lao PDR)
Koji Wada ; Sommana Rattana ; Chanphomma Vongsamphanh
Tropical Medicine and Health 2015;43(4):239-242
		                        		
		                        			
		                        			In Lao People’s Democratic Republic (PDR), the mortality rate among children under 5 years of age is high (131 per 1000 live births in 2003), partly as a consequence of poor basic services provided by district hospitals. A simplified management tool, “Ten MR (Minimum Requirement)”, was developed in Lao PDR. The tool assured the quality of health services including the processes of planning, implementing, self-monitoring, supervision, reporting and evaluation. The tool focused on ten basic services, integrating stakeholders from district hospitals and governing agencies. Each district hospital develops feasible annual activities, assigning responsibility to people based on a consensus between hospital staff and local governing agencies. Hospitals can self-monitor their activities on a monthly basis. Supervisory visits to district hospitals by local governing agencies improved activities and communication between staff. Visualization of progress promoted the sharing of achievements between staff and highlighted activities in need of more work. In 2004, district hospitals in Vientiane and Oudomxay provinces initiated the application of the tool. These district hospitals included primary care hospitals for outpatients, emergency care and in-patients, with a capacity of 10–20 beds, providing care for a population of between 30,000 and 80,000 people. The Ministry of Health recognized the effectiveness of Ten MR and implemented the expansion of the tool to all district hospitals in Lao PDR from 2011. Ten MR benefits district hospitals and governing agencies. Ten MR focuses on the daily routine work, enhancing team work and communication among all stakeholders.
		                        		
		                        		
		                        		
		                        	
9.A Suspected Case of Heyde Syndrome with Bleeding of the Small Intestine before Aortic Valve Replacement for Severe Aortic Valve Stenosis
Takanori Kono ; Toru Takaseya ; Yuichiro Hirata ; Kumiko Wada ; Takahiro Shojima ; Kazuyoshi Takagi ; Koji Akasu ; Koichi Arinaga ; Hidetoshi Akashi ; Hiroyuki Tanaka
Japanese Journal of Cardiovascular Surgery 2015;44(6):346-349
		                        		
		                        			
		                        			The patient was a 74-year-old woman who had undergone mitral valve replacement with a mechanical valve for rheumatic mitral valve stenosis at age 60. She was scheduled for aortic valve replacement for severe aortic stenosis. However, she had significantly worsening anemia before the operation. Capsule endoscopy showed angiodysplasia with bleeding in her small intestine, which was considered the cause of the anemia. Because of progressive anemia, we tried embolization under angiography. However, there was no evidence of extravasation. Neither melena nor exacerbation of anemia was observed, and she underwent aortic valve replacement. She was discharged on postoperative day 22 without gastrointestinal bleeding. Heyde syndrome is aortic valve stenosis associated with gastrointestinal bleeding induced by von Willebrand disease and angiodysplasia in small intestine. Molecular multimeric analysis of von Willebrand factor and the existence of angiodysplasia with hemorrhage of the digestive tract are important for definitive diagnosis. Capsule endoscopy, which is a general examination, is more useful for diagnosis than molecular multimeric analysis of von Willebrand factor. Aortic valve replacement is the only therapeutic option for Heyde syndrome. It is important to decide the appropriate timing of AVR with cardiopulmonary bypass.
		                        		
		                        		
		                        		
		                        	
10.“Ten Minimum Requirement”: A management tool to improve quality of healthcare services in Lao People Democratic Republic (Lao PDR)
Koji Wada ; Sommana Rattana ; Chanphomma Vongsamphanh
Tropical Medicine and Health 2015;advpub(0):-
		                        		
		                        			
		                        			In Lao People's Democratic Republic (PDR), the mortality rate forchildren under 5 years of age is high (131 per 1000 live births in 2003),partly as a consequence of poor basic services provided by district hospitals.A simplified management tool, “Ten MR (Minimum Requirement)”, was developed inLao PDR. The tool assured the quality of health services including theprocesses of planning, implementing, self-monitoring, supervision, reportingand evaluation. The tool focused on ten basic services, integratingstakeholders from district hospitals and governing agencies. Each districthospital develops feasible annual activities, designating responsible peoplebased on a consensus between hospital staff and local governing agencies.Hospitals can self-monitor their activities on a monthly basis. Supervisoryvisits to district hospitals by local governing agencies improved activitiesand communication between staff. Visualization of progress promoted the sharingof achievements between staff and highlighted activities in need of more work.In 2004, district hospitals in Vientiane andOudomxay province initiated the introduction of the tool. These districthospitals included primary care hospitals for outpatients, emergency care andin-patients, with a capacity of 10-20 beds, providing care for a population ofbetween 30,000 and 80,000 people. The Ministry of Health recognized theeffectiveness of Ten MR and implemented the expansion of the tool to alldistrict hospitals in Lao PDR from 2011. Ten MR benefits district hospitals andgoverning agencies. Ten MR focuses on the daily routine work, enhancing teamwork and communication between all stakeholders.
		                        		
		                        		
		                        		
		                        	
            

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