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Hayashi T, Matsumoto S, Hosokawa A, Yamamoto K, Nomura A, Woo E, Imano H, Kato R, Ijiri Y, Yamaguchi T, Izumi Y, Yoshiyama M, Okada Y, Asahi M. P2501Rivaroxaban combined with spironolactone attenuates cardiovascular remodeling due to hypoxia in pulmonary arterial hypertension. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2501] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kondo Y, Nakano M, Senoo K, Nakano M, Hayashi T, Ito R, Kobayashi Y. P6291Optimal cut-off point of atrial high-rate episodes for prediction of stroke in japanese elderly patients with a cardiac implantable electronic device. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6291] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Tateishi R, Kimura S, Kawakami T, Kanehama N, Tachibana S, Arai H, Hayasaka K, Hara S, Hiroki J, Yoshioka K, Kuroda S, Iwatsuka R, Mizukami A, Hayashi T, Matsumura A. P5502Comparison of accuracy of fractional flow reserve using optical sensor wire to conventional pressure wire. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kimura S, Kawakami T, Kanehama N, Tateishi R, Tachibana S, Arai H, Hara S, Hayasaka K, Hiroki J, Yoshioka K, Kuroda S, Iwatsuka R, Mizukami A, Hayashi T, Matsumura A. P2629Reliability of optical coherence tomography in the prediction of occurrence of side-branch complications after percutaneous coronary intervention. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2629] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Nakano M, Kondo Y, Nakano M, Hayashi T, Ito R, Kobayashi Y. P4564Impact of stroke events in patients with atrial fibrillation detected by cardiac implantable electronic devices from Far East. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p4564] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yoshioka K, Kimura S, Kawakami T, Kanehama N, Tateishi R, Tachibana S, Arai H, Hayasaka K, Hara S, Hiroki J, Kuroda S, Iwatsuka R, Mizukami A, Hayashi T, Matsumura A. P5606Clinical implication of the differences of aspirated materials by thrombectomy in STEMI patients. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p5606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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107
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Ogata M, Hayashi T, Kawasaki T. Scalp Electroacupuncture (SEA) Attenuates Pain Intensity and Improves Functional Activity in Patients with Complex Reginal Pain Syndrome (CRPS). J Acupunct Meridian Stud 2018. [DOI: 10.1016/j.jams.2018.08.179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
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Nakano M, Kondo Y, Nakano M, Hayashi T, Ito R, Kobayashi Y. P2916Prognosis of Japanese non-ischemic cardiomyopathy patients with an Implantable cardioverter-defibrillator for primary prophylaxis - cardiac sarcoidosis versus hypertrophic cardiomyopathy versus dilate. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Umazume T, Yamada T, Yamada S, Ishikawa S, Furuta I, Iwano H, Murai D, Hayashi T, Okada K, Morikawa M, Yamada T, Ono K, Tsutsui H, Minakami H. Morphofunctional cardiac changes in pregnant women: associations with biomarkers. Open Heart 2018; 5:e000850. [PMID: 30057771 PMCID: PMC6059313 DOI: 10.1136/openhrt-2018-000850] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 05/30/2018] [Accepted: 06/13/2018] [Indexed: 11/03/2022] Open
Abstract
Objective This longitudinal study was performed to determine changes in echocardiography parameters in association with various biomarker levels in pregnancy/postpartum. Methods Fifty-one healthy pregnant women underwent echocardiography with simultaneous determination of blood levels of five biomarkers at each of the first, second and third trimesters of pregnancy, immediately postpartum within 1 week after childbirth and approximately 1 month postpartum. Data on 255 echocardiography scans (five times per woman) and biomarkers were analysed. Results Left ventricular end-diastolic dimension, left atrial (LA) volume index and left ventricular (LV) mass index increased with advancing gestation and reached the maximum immediately postpartum concomitant with the highest brain natriuretic peptide (BNP), N-terminal pro B-type natriuretic peptide (NT-proBNP), high-sensitivity troponin I (hs-TnI) and creatine kinase MB levels. The inferior vena cava diameter was significantly reduced in the third trimester compared with that in the first trimester and the peak occurred immediately after childbirth. In 255 paired measurements, hs-TnI level was significantly positively correlated with LA volume index and LV mass index; BNP and NT-proBNP were significantly positively correlated with LA volume index and estimated glomerular filtration rate (eGFR) was significantly positively correlated with the average of early diastolic septal and lateral mitral annular velocity (e'). Conclusions Maximal cardiac changes in morphology occurred postpartum within 1 week after childbirth, not during pregnancy. BNP/NT-proBNP, hs-TnI and eGFR reflected cardiac changes in pregnancy.
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Shigekiyo T, Uno Y, Kawauchi S, Saito S, Hondo H, Nishioka J, Hayashi T, Suzuki K. Protein S Tokushima: An Abnormal Protein S Found in a Japanese Family with Thrombosis. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1649477] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryAn abnormal protein S (PS) was found in a Japanese family with a high incidence of thrombosis. The proband is a woman who was born in Tokushima Prefecture. She had superior sagittal sinus thrombosis, thrombophlebitis of the left leg, and thrombosis of the placenta. She had a normal plasma level of free PS antigen but decreased PS activity. Her mother and aunt also had thrombophlebitis of the leg, and together with four other family members also showed a normal level but decreased activity of PS. This suggests that hereditary dysfunction of PS is inherited in this family as an autosomal dominant trait. The proband’s PS appears to have a slightly higher molecular weight than normal PS both in the intact and modified form, suggesting that it has a molecular defect on the carboxyl-terminal side of the thrombin-sensitive site. This abnormal PS with apparently unique characteristics was named PS Tokushima.
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Wada H, Kimura M, Tajima T, Shirahama R, Hayashi T, Suzuki Y, Suzuki Y, Sato S, Maruyama K, Endo M, Ikeda A, Tanigawa T. 0773 Sleep Disordered Breathing Based on Symptoms And RDI in Primary School Children with Implication for Prevalence. Sleep 2018. [DOI: 10.1093/sleep/zsy061.772] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Kawamura A, Meguro J, Takahashi M, Ikeda A, Hirai H, Kukita K, Yonekawa M, Witmanowski H, Yokota N, Hayashi T, Ito K. Artificial Conditioner for Stored Organs. Int J Artif Organs 2018. [DOI: 10.1177/039139889401700109] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
We have developed an artificial organ conditioning system in order not only to condition but also evaluate the viability for transplant graft of kidneys which have been stored for a long time and damaged by warm ischaemia following cardiac arrest. The conditioning system consisted of an artificial lung, a roller pump, an organ chamber and perfusate. The perfusate was prepared with electrolytes, fluorocarbon, amino acid, glucose, an oxygen scavenger and so on. Conditioning was performed by continuous perfusion under mild hypothermia at 24° C. Mildly damaged kidneys (0 and 30 minutes warm ischaemia rabbit kidneys) were well conditioned but severely damaged kidneys failed to produce urination. Our device successfully exposed the viability of stored kidneys and the successful conditioning of damaged kidneys due to warm ischaemia avoiding transplantation. By establishing our method, the harvesting of kidneys following cardiac arrest will be feasible.
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Nakabachi M, Yamada S, Iwano H, Hayashi T, Okada K, Kusunose K, Watanabe K, Ishizu T, Wakami K, Yamada H, Dohi K, Seo Y, Ohte N, Shimizu C, Mikami T. Left Ventricular Mass Influences Relationship Between Filling Pressure and Early-Diastolic Ratio of Inflow Velocity to Mitral Annular Velocity (E/e'). Circ J 2018; 82:732-738. [PMID: 29311519 DOI: 10.1253/circj.cj-17-1019] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
BACKGROUND Early-diastolic mitral annular velocity (e') and the ratio of early-diastolic left ventricular (LV) inflow velocity (E) to e' (E/e') have been widely used as indexes of LV relaxation and filling pressure, respectively. However, many recent studies have demonstrated that they are not reliable in various clinical settings. We thus investigated the factors influencing these echocardiographic parameters in a multicenter study.Methods and Results:The study group comprised 69 patients, referred for cardiac catheterization, and enrolled in 5 university hospitals. Time constant (τ) and LV mean diastolic pressure (LVMDP) were measured using a micromanometer-tipped catheter. Although e' only weakly correlated with τ (r=-0.35, P<0.01), E/e' modestly correlated with LVMDP (r=0.48, P<0.001). Multivariable analysis revealed that hypertension (β=-0.33, P<0.01) and LV ejection fraction (LVEF) (β=0.44, P<0.001) were the independent determinants of e', and LV mass index (LVMI) (β=0.37, P<0.001) and LVMDP (β=0.47, P<0.001) were those of E/e'. Additionally, E/e' significantly correlated with LVMDP in patients with normal LVMI (r=0.74, P<0.001) but not in those with increased LVMI. CONCLUSIONS The coincidence of hypertension and LVEF affected the relationship between LV relaxation and e', whereas LVMI altered the relationship between LV filling pressure and E/e'. Thus, clinical conditions associated with an increase in LVMI, such as LV hypertrophy and LV dilatation, should be considered when estimating the filling pressure from E/e'.
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Minami K, Hayashi T, Sato K, Nakahara T. Correction to: Development of micro mechanical device having two-dimensional array of micro chambers for cell stretching. Biomed Microdevices 2018; 20:16. [PMID: 29427138 DOI: 10.1007/s10544-018-0258-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The original article has been corrected. Instances of the character "μ" should be replaced by the term "micro".
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Koyama W, Kohashi N, Hayashi T, Iida N. Significance of Measuring the Quality of Life in Health Evaluation. Methods Inf Med 2018. [DOI: 10.1055/s-0038-1634342] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
AbstractTo evaluate the QUIK-R, a revised self-completed questionnaire for the quality of life (QOL), and to clarify the significance of measuring QOL in health evaluations, the results of 1,017 office workers were analyzed. The QUIK-R showed a high reliability and a high validity. There were significant correlations between the total score and the subject’s age, sex, smoking habit, sleeping time, and exercise. Forty-two subjects with a good QUIK-R score had poor physical examination results. Our results show the usefulness of the QUIK-R and the importance of measuring the QOL in health evaluations.
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Hara A, Wada T, Sada KE, Amano K, Dobashi H, Harigai M, Takasaki Y, Yamada H, Hasegawa H, Hayashi T, Fujimoto S, Muso E, Kawakami T, Homma S, Yoshida M, Hirahashi J, Ogawa N, Ito S, Makino H, Arimura Y. Risk Factors for Relapse of Antineutrophil Cytoplasmic Antibody-associated Vasculitis in Japan: A Nationwide, Prospective Cohort Study. J Rheumatol 2018; 45:521-528. [PMID: 29419469 DOI: 10.3899/jrheum.170508] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/06/2017] [Indexed: 11/22/2022]
Abstract
OBJECTIVE The aim was to elucidate the prognosis and risk factors associated with relapse during longterm remission maintenance therapy for antineutrophil cytoplasmic antibody (ANCA)-associated vasculitis (AAV). METHODS Patients with newly diagnosed AAV (n = 156) were registered in the Remission Induction Therapy in Japanese patients with ANCA-associated Vasculitides (RemIT-JAV) study, and among them, 83 patients who achieved remission were enrolled and followed up for 24 additional months in our nationwide, prospective cohort study (Co-RemIT-JAV; registration number UMIN 000006373). Patterns of maintenance therapy, effectiveness, and safety were evaluated from months 25 to 48 after the RemIT-JAV. The primary outcome measure was the rate of relapse. Secondary outcome measures included overall and renal survival, risk factors associated with relapse, and incidence rates of serious infections. RESULTS The patients comprised 35 men and 48 women aged 65.3 ± 12.6 years. Between months 25 and 48, the survival rate was 95% (79/83). Causes of death included 1 thyroid cancer, 1 infection, and 2 unknown reasons. Four patients had developed endstage renal disease (ESRD) by Month 24; 1 developed ESRD beyond Month 25. The relapse rate was 24% (20/83) from months 25 to 48. Multivariable analysis revealed that oral prednisolone ≤ 2.5 mg/day at Month 24 was a significant risk factor for relapse between months 25 and 48 (HR = 3.1, 95% CI 1.1-8.5). CONCLUSION One-quarter of patients with AAV relapsed during maintenance therapy, and relapse was associated with the dose of oral prednisolone 24 months after the initiation of remission induction therapy in Japan.
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Hayashi T, Kitahara K. Optical Coherence Tomography in Enhanced S-Cone Syndrome: Large Macular Retinoschisis with Disorganized Retinal Lamination. Eur J Ophthalmol 2018; 15:643-6. [PMID: 16167297 DOI: 10.1177/112067210501500517] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Purpose The authors previously reported clinical and molecular features of a boy (at age 17) with enhanced S-cone syndrome (ESCS) who had bilateral cystoid maculopathies. The purpose of the current study was to describe the patient's optical coherence tomography (OCT) findings. Methods OCT was performed when the patient was 23 years old. Results OCT images revealed formations of single large hyporeflective cystic spaces in the cystoid maculopathies of both eyes. The cystic spaces were much larger than those of previously reported cases. In the temporal region of each cystic space, symmetric disorganized retinal lamination was observed with the retina lacking well-defined and hypoeflective bands of the inner nuclear layer and the outer nuclear layer, which are seen in normal retina. Splitting in the retinal thickness was at the level of the outer retinal layer rather than at the inner retinal layer in both eyes. Conclusions Splitting is likely to occur close to the outer plexiform layer in which the cleavage plane of familial juvenile retinoschisis is identified. The unique OCT manifestation of symmetric large macular retinoschisis with disorganized retinal lamination may indicate a severe form of ESCS.
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Nührenberg J, Lotz W, Merkel P, Nührenberg C, Schwenn U, Strumberger E, Hayashi T. Overview on Wendelstein 7-X Theory. ACTA ACUST UNITED AC 2018. [DOI: 10.13182/fst95-a11947048] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Minami K, Hayashi T, Sato K, Nakahara T. Development of micro mechanical device having two-dimensional array of micro chambers for cell stretching. Biomed Microdevices 2018; 20:10. [PMID: 29305659 DOI: 10.1007/s10544-017-0256-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
This paper presents a novel cell stretching micro device having two-dimensional array of micro chambers. It enables an in situ time-lapse observation of stretched cell by using an optical microscope with high measurement efficiency. The presented device consists of a cell culture dish and the array of micro chambers made of silicone elastomer and extension structures made of photocurable resin, and is fabricated with MEMS technology. The fabrication process of the thin micro chamber array combines photoresist mold and lift-off process based on conventional photolithography. The fabricated device has 134micro chambers in 5μm or less thickness. It was demonstrated that the fabricated micro device could be used to make in-situ time-lapse observation of cell responses to stretching under optical microscopy. In addition, the influence of the chamber thickness to the quality of the microscope image observed was evaluated. It is confirmed that the proposed device having two-dimensional array of the thin micro chambers makes it possible to observe cell response for stretch stimuli with high quality and efficiency.
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Nishida T, Hayashi T, Inamoto T, Kato R, Ibuki N, Takahara K, Takai T, Yoshikawa Y, Uchimoto T, Saito K, Tanda N, Kouno J, Minami K, Uehara H, Hirano H, Nomi H, Okada Y, Azuma H. Dual Gas Treatment With Hydrogen and Carbon Monoxide Attenuates Oxidative Stress and Protects From Renal Ischemia-Reperfusion Injury. Transplant Proc 2018; 50:250-258. [DOI: 10.1016/j.transproceed.2017.12.014] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 10/26/2017] [Accepted: 12/05/2017] [Indexed: 01/14/2023]
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Umegaki H, Makino T, Shimada H, Hayashi T, Wu Cheng X, Kuzuya M. Cognitive Dysfunction in Urban-Community Dwelling Prefrail Older Subjects. J Nutr Health Aging 2018; 22:549-554. [PMID: 29582896 DOI: 10.1007/s12603-018-1017-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
OBJECTIVES A number of studies have reported that frailty is cross-sectionally associated with cognitive decline and is also a risk for future cognitive decline or dementia; however, there have been only a few studies that focus on the association between prefrailty and cognitive dysfunction. In the current study, we investigated the association between prefrailty and cognition. DESIGN A cross-sectional study of the data obtained at registration in a randomized control trial. SETTING Toyota, Japan. PARTICIPANTS Community-dwelling older subjects (male 54.6%) who had cognitive complaints. MEASUREMENTS A battery of neuropsychological and physical assessments were performed. Prefrailty was defined as exhibiting one or two of the five Fried criteria (weight loss, exhaustion, weakness, slow gait speed and low physical activity). We performed a multiple regression analysis to investigate the associations of cognitive performance with prefrailty, adjusting for the factors that were significantly different between the robust and prefrailty groups. To assess the cognitive attributes that were significantly associated with prefrailty, logistic analysis was performed to see if one specific criterion of the five frailty criteria was associated with cognitive performance. RESULTS The study subjects included 183 prefrail and 264 robust individuals. The prefrail subjects with cognitive complaints were older, less educated, more depressive, and more likely to have diabetes mellitus than the robust subjects. The prefrail subjects had lower performance in a wide-range of cognitive domains, and after adjustments for age, education, depressive mood, and diabetes mellitus, prefrailty was associated with a decline in delayed memory and processing speed. Among the components of the Fried criteria, slow gait speed and loss of activity were significantly associated with slow processing speed as assessed by the digit symbol substitution test. CONCLUSION The current results demonstrated that prefrailty was associated with worse memory and processing speed performance, but not with other cognitive domains.
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Hayashi T, Ueda S, Mori M, Baba T, Abe T, Iwata H. Influence of resveratrol pretreatment on thawed bovine embryo quality and mitochondrial DNA copy number. Theriogenology 2018; 106:271-278. [DOI: 10.1016/j.theriogenology.2017.10.022] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2017] [Revised: 10/09/2017] [Accepted: 10/15/2017] [Indexed: 01/23/2023]
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Bottai M, Tjärnlund A, Santoni G, Werth VP, Pilkington C, de Visser M, Alfredsson L, Amato AA, Barohn RJ, Liang MH, Singh JA, Aggarwal R, Arnardottir S, Chinoy H, Cooper RG, Danko K, Dimachkie MM, Feldman BM, García-De La Torre I, Gordon P, Hayashi T, Katz JD, Kohsaka H, Lachenbruch PA, Lang BA, Li Y, Oddis CV, Olesinka M, Reed AM, Rutkowska-Sak L, Sanner H, Selva-O’Callaghan A, Wook Song Y, Vencovsky J, Ytterberg SR, Miller FW, Rider LG, Lundberg IE. EULAR/ACR classification criteria for adult and juvenile idiopathic inflammatory myopathies and their major subgroups: a methodology report. RMD Open 2017; 3:e000507. [PMID: 29177080 PMCID: PMC5687535 DOI: 10.1136/rmdopen-2017-000507] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2017] [Revised: 09/25/2017] [Accepted: 10/21/2017] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVE To describe the methodology used to develop new classification criteria for adult and juvenile idiopathic inflammatory myopathies (IIMs) and their major subgroups. METHODS An international, multidisciplinary group of myositis experts produced a set of 93 potentially relevant variables to be tested for inclusion in the criteria. Rheumatology, dermatology, neurology and paediatric clinics worldwide collected data on 976 IIM cases (74% adults, 26% children) and 624 non-IIM comparator cases with mimicking conditions (82% adults, 18% children). The participating clinicians classified each case as IIM or non-IIM. Generally, the classification of any given patient was based on few variables, leaving remaining variables unmeasured. We investigated the strength of the association between all variables and between these and the disease status as determined by the physician. We considered three approaches: (1) a probability-score approach, (2) a sum-of-items approach criteria and (3) a classification-tree approach. RESULTS The approaches yielded several candidate models that were scrutinised with respect to statistical performance and clinical relevance. The probability-score approach showed superior statistical performance and clinical practicability and was therefore preferred over the others. We developed a classification tree for subclassification of patients with IIM. A calculator for electronic devices, such as computers and smartphones, facilitates the use of the European League Against Rheumatism/American College of Rheumatology (EULAR/ACR) classification criteria. CONCLUSIONS The new EULAR/ACR classification criteria provide a patient's probability of having IIM for use in clinical and research settings. The probability is based on a score obtained by summing the weights associated with a set of criteria items.
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Okada K, Kaga S, Abiko R, Murayama M, Hioka T, Nakabachi M, Yokoyama S, Nishino H, Ichikawa A, Abe A, Nishida M, Asakawa N, Tsujinaga S, Hayashi T, Iwano H, Yamada S, Masauzi N, Mikami T. Novel echocardiographic method to assess left ventricular chamber stiffness and elevated end-diastolic pressure based on time–velocity integral measurements of pulmonary venous and transmitral flows. Eur Heart J Cardiovasc Imaging 2017; 19:1260-1267. [DOI: 10.1093/ehjci/jex305] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2017] [Accepted: 11/01/2017] [Indexed: 11/14/2022] Open
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Nakazono M, Hayashi T, Yamada T, Osakabe H, Hara K, Nagasawa S, Kumazu Y, Rino Y, Masuda M, Ogata T, Yoshikawa T. Priority of lymphadenectomy for each station in elderly patients with middle to distal advanced gastric cancer. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx660.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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