1.A Surgery Case of Heparin-Induced Thrombocytopenia as a Complication of Ventricular Septal Perforation after Acute Myocardial Infarction
Yuki Yoshioka ; Ryusuke Suzuki ; Tomoya Miyamoto ; Kenta Uekihara ; Takeshi Sakaguchi ; Mai Matsukawa ; Ryo Hirayama ; Masamichi Nakajima
Japanese Journal of Cardiovascular Surgery 2017;46(6):305-310
A 66-year-old man with an unknown medical history developed chest pain and a diagnosis of acute myocardial infarction (AMI) was given by his physician. Percutaneous coronary intervention was performed in the left anterior descending artery. Echocardiography revealed ventricular septal perforation (VSP) ; therefore, the patient was transferred to our hospital. After admission, his platelet count dropped rapidly during heparin administration, and left ventricular thrombosis and deep vein thrombosis were noted, raising a suspicion of heparin-induced thrombocytopenia (HIT). To establish cardiopulmonary bypass, argatroban alone was insufficient to prolong the Powered by Editorial Manager® and ProduXion Manager® from the Aries Systems Corporation activated clotting time (ACT) ; thus, nafamostat mesilate was also used for coronary artery bypass grafting and surgical repair of VSP. It took many hours to normalize the ACT, requiring re-exploration for excessive bleeding. On the 37th postoperative day, the patient was transferred to another hospital. We performed cardiac surgical procedures using argatroban in a patient who developed HIT during the course of VSP following AMI ; however, we had difficulty in controlling the ACT. Since, to the best of our knowledge, there are no previous studies reporting surgical case of VSP complicated by HIT, we present this case with a review of the relevant literature.
2.Surgery for Type A Aortic Dissection Six Years after Adult Aortic Coarctation Correction in a Patient with Turner Syndrome
Yuki Yoshioka ; Ryusuke Suzuki ; Ryo Hirayama ; Tomoya Miyamoto ; Masaharu Mouri ; Kenta Uekihara ; Mai Matsukawa ; Toshiaki Watanabe ; Masamichi Nakajima
Japanese Journal of Cardiovascular Surgery 2016;45(5):242-246
The case was a 27-year-old woman with a history of Turner syndrome. The patient underwent ascending-descending aorta bypass for aortic coarctation 6 years previously and underwent subsequent follow-up on an outpatient basis. She consulted our department because of fever, chest pain and headache as the main complaints. Age-indeterminate type A aortic dissection was found on computed tomography, and she was admitted to the hospital on the same day. Echocardiography also revealed an enlarged aortic root and bicuspid aortic valve. Aortic root replacement and total arch replacement were performed, and her postoperative course was favorable. It is reported that in cases of Turner syndrome with aortic coarctation, aortic aneurysm and aortic dissection are likely to occur due to the vulnerability of the aortic wall. We encountered a patient with Turner syndrome who underwent ascending-descending aorta bypass for adult aortic coarctation and subsequently developed type A aortic dissection, underwent aortic root and total arch replacement, and rehabilitated after surgery, as well as provide bibliographic considerations.
3.Recovery from severe metabolic alkalosis with acute kidney injury due to gastric cancer: a case report
Kenta HIRAI ; Kei NAGAI ; Takashi ONO ; Masayuki NAKAJIMA ; Tomohiro HAYAKAWA ; Yoshinori SAKATA ; Yoshiharu NAKAMURA
Journal of Rural Medicine 2021;16(1):47-51
Objective: Most cases of severe metabolic alkalosis have many causes that may result in renal failure and death. Therefore, these should be treated promptly for successful recovery.Patient: A 61-year-old man was hospitalized due to an acute kidney injury (creatinine level of 4.36 mg/dL) after a 3-month history of anorexia and recurrent vomiting. He had been treated for tuberculosis in the past.Results: Blood gas analysis revealed severe metabolic alkalosis with pH=7.66, HCO3=94 mmol/L, and pCO2=82.0 mmHg. Routine biochemical examination revealed severe hypokalemia (K 2.9 mEq/L) that was associated with prolonged QTc interval (0.52 seconds) on the electrocardiogram. Gastrofiberscopic examination also revealed severe stenosis and ulcerated scarring of the gastric pylorus and severe esophagitis. Intravenous hydration and correction of hypokalemia improved renal function and resolved metabolic alkalosis. An investigation that was repeated after 6 days revealed a creatinine level of 1.58 mg/dL, pH=7.47, HCO3=23.4 mmol/L, K=3.6 mEq/L, and QTc of 0.45 seconds. The patient underwent gastrectomy and adenocarcinoma was observed.Conclusion: We described a resolved case of severe metabolic alkalosis and acute kidney injury in a rural medical setting following conservative management.
4.How can health and gender goals of the Sustainable Development Goals (SDGs) be pursued in synergy?: a comparative analysis between Japan and the United Kingdom
Hitoshi MURAKAMI ; Miwa KANDA ; Hisa NAKAJIMA ; Takahiro SAWAYANAGI ; Kenta SOGA ; Norikazu HAMADA ; Kiyoko IKEGAMI
Journal of International Health 2020;35(1):49-64
Introduction The objective of this study was to identify measures Japan should take to achieve health (goal 3) and gender (goal 5) goals of the Sustainable Development Goals (SDGs) in synergy by comparing the status of health and gender in Japan and the United Kingdom based on gender analysis.Methods In-depth interviews were conducted with 8 gender experts and 2 obstetrician/gynecologists in Japan and 9 informants in government, civil society and academia in the UK. The status of sexual and reproductive health and rights (SRHR) and measures against gender-based violence were elaborated. Qualitative content analysis was conducted on the transcripts of the interview audio-records.Results We have compared contraception and abortion, control of sexually transmitted infections, sexuality education, measures against breast and cervical cancers and measures against gender-based violence in Japan and the UK. Significant differences were noted in contraception and abortion, sexuality education and measures against gender-based violence. There were four areas where the UK applied gender-transformative measures (measures that address not only the condition of women but also the gender relations between men and women and social status of women) whereas Japan has not yet applied such measures: 1) Ensuring selection of a wide range of contraceptive methods with low price, 2) Enabling abortion solely based on the decision by women, 3)Comprehensive sexuality education that includes gender and human relationship, and 4) Setting an integrated strategy against gender-based violence. Conclusion Japan can strive for both health and gender goals of the SDGs by addressing above four aspects. Promotion of civil society participation in policy decision and increased proportion of female parliamentarians will help address these aspects.
5.Four-year musculoskeletal examinations among elementary and junior high school students across a single city
Hiroshi KAMADA ; Yohei TOMARU ; Mio KIMURA ; Yuta TSUKAGOSHI ; Shogo NAKAGAWA ; Yuki MATAKI ; Ryoko TAKEUCHI ; Taishu KASAI ; Ryoichi NAKAJIMA ; Kenta TANAKA ; Shumpei MIYAKAWA ; Masashi YAMAZAKI
Journal of Rural Medicine 2020;15(4):194-200
Objective: In 2016, Japan started conducting musculoskeletal examinations that included “limb status” of students as an essential item. Our institution implemented a unified musculoskeletal examination for all public elementary and junior high schools in T-city. In this study, we aimed to report the progress in the past 4 years.Patients and Methods: The Tsukuba Childhood Locomotive-Organ Screening Sheet (T-CLOSS), which is a questionnaire that includes some nationwide-recommended questions, was prepared and distributed to students. Results of the questionnaires were analyzed, and the orthopedic surgeon conducted examinations for the extracted items. From these questionnaires, the ratio of each item, rate of advisory for screening, and content of the advisory were investigated.Results: During 2016–2019, musculoskeletal examinations were conducted in every public schools, with nearly 20,000 students in T-city. The consultation advisory rate was 6.7% in 2019. Of the 524 students who received the third screening recommendation, the actual consultation rate was 248 (40.8%). After the third screening, the proportion of students requiring treatment and outpatient visits was 46.7% (n=248), which accounted for 1.2% of all elementary and junior high school students in the city.Conclusion: We reported the results of 4-year musculoskeletal examinations in a city. In our screening, we distributed a uniform questionnaire throughout the city, and orthopedic surgeons performed secondary examinations of identified students in all schools. This appears to be an advanced effort to prevent musculoskeletal impairment in students. We hope to conduct more sophisticated musculoskeletal examinations using our results, aiming at early detection, early treatment, and improvement of musculoskeletal function in elementary and junior high school students.
6.Dental impact of anti-fibroblast growth factor 23 therapy in X-linked hypophosphatemia.
Elis J LIRA DOS SANTOS ; Kenta NAKAJIMA ; Julien PO ; Ayako HANAI ; Volha ZHUKOUSKAYA ; Martin BIOSSE DUPLAN ; Agnès LINGLART ; Takashi SHIMADA ; Catherine CHAUSSAIN ; Claire BARDET
International Journal of Oral Science 2023;15(1):53-53
Elevated fibroblast growth factor 23 (FGF23) in X-linked hypophosphatemia (XLH) results in rickets and phosphate wasting, manifesting by severe bone and dental abnormalities. Burosumab, a FGF23-neutralizing antibody, an alternative to conventional treatment (phosphorus and active vitamin D analogs), showed significant improvement in the long bone phenotype. Here, we examined whether FGF23 antibody (FGF23-mAb) also improved the dentoalveolar features associated with XLH. Four-week-old male Hyp mice were injected weekly with 4 or 16 mg·kg-1 of FGF23-mAb for 2 months and compared to wild-type (WT) and vehicle (PBS) treated Hyp mice (n = 3-7 mice). Micro-CT analyses showed that both doses of FGF23-mAb restored dentin/cementum volume and corrected the enlarged pulp volume in Hyp mice, the higher concentration resulting in a rescue similar to WT levels. FGF23-mAb treatment also improved alveolar bone volume fraction and mineral density compared to vehicle-treated ones. Histology revealed improved mineralization of the dentoalveolar tissues, with a decreased amount of osteoid, predentin and cementoid. Better periodontal ligament attachment was also observed, evidenced by restoration of the acellular cementum. These preclinical data were consistent with the retrospective analysis of two patients with XLH showing that burosumab treatment improved oral features. Taken together, our data show that the dentoalveolar tissues are greatly improved by FGF23-mAb treatment, heralding its benefit in clinics for dental abnormalities.
Humans
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Male
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Mice
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Animals
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Familial Hypophosphatemic Rickets/pathology*
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Fibroblast Growth Factor-23
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Retrospective Studies
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Fibroblast Growth Factors/metabolism*
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Bone and Bones/metabolism*
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Phosphates/therapeutic use*