Publications by authors named "Osamu Yonekawa"

Aim: We hypothesized that the quality of the assessment of abnormal laboratory data in the emergency department (ED) could affect the hospital-attending physicians' decision-making after a patient's hospitalization. To test this hypothesis, we investigated how patients with a positive D-dimer result were reported by ED physicians in electronic medical records, and measured whether lower extremity venous ultrasonography examination was undertaken during hospitalization by the hospital-attending physicians.

Methods: In an urban tertiary acute care general hospital in Japan, between January 2012 and December 2013, we included patients hospitalized after a positive D-dimer measurement (≥1.

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At the annual meeting of the Japanese Society of Laboratory Medicine in Kobe in 2016, a joint symposium was held in cooperation between the Japanese Society of Laboratory Medicine and Japanese Association of Clinical Laboratory Physicians. We presented and discussed 5 cases at the Reversed Clinico-pathological Conference. Each case was analyzed by 5 new members of the Japanese Association of Clinical Laboratory Physicians, who had passed the examination for Certified Clinical Laboratory Physicians in 2015.

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Seirei General Hospital is a community hospital with 744 beds located in Hamamatsu City, one of the ordi- nance-designated cities. Since the introduction of the mandatory residency program, marked changes have occurred in the medical field. Most young residents have chosen to stay for training in community hospitals even after the initial mandatory program, not moving to university hospitals.

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Routine laboratory tests are ordered for almost all in- and outpatients. A systematic analysis of routine laboratory data can give doctors valuable clinical information about patients. In some cases, a correct diag- nosis can be made using laboratory data alone.

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In cooperation with the clinical laboratory, our Department of Laboratory Medicine has established a novel logistic support system. The goal of this system is to improve the efficacy of laboratory medicine for both the clinician and patient through a new advisory service. Any abnormal patient laboratory data are detected by computer, printed and then checked and analyzed by medical technologists.

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Routine laboratory data are discussed by time series analysis in reversed clinicopathological conferences (R-CPC) at Shinshu University School of Medicine. We can identify fine changes in the laboratory data and the importance of negative data (without any changes) using time series analysis. Routine laboratory tests can be performed repeatedly and relatively cheaply, and time series analysis can be performed.

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Beta2-glycoprotein I (beta2GPI) is a five-domain protein associated with the antiphospholipid syndrome (APS), however, its normal biological function is yet to be defined. beta2GPI is N-glycosylated at several asparagine residues and the glycan moiety conjugated to residue 143 has been proposed to interact with the Gly40-Arg43 motif of beta2GPI. The Gly40-Arg43 motif has also been proposed to serve as the epitope for the anti-beta2GPI autoantibody associated with APS.

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This study was performed to investigate the risk of cardiac events by eccentric or continuous dosing of nitrates in patients with healed myocardial infarction. A total of 573 patients with healed myocardial infarction were assigned to one of two groups: a nitrate-treatment (n =239) and a nontreatment (n =334) group. The nitrate-treatment group was further subdivided into a group receiving eccentric dosing of nitrates (n =153) and a group receiving continuous dosing of nitrates (n =86).

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Background: We have previously reported that the serum concentration of 2-(alpha-mannopyranosyl)-L-tryptophan (MPT), tryptophan glycoconjugate, is a more accurate measure of renal function than that of serum creatinine concentration. The aim of the present study was to compare the diagnostic value of serum concentrations of MPT and creatinine as a measure of normal renal function.

Methods: A total of 156 subjects with serum creatinine concentration < or =1.

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A 28-year-old woman with a history of anorexia nervosa was admitted with excessive weight loss, edema, and amenorrhea. She had lost 34% of her previous body weight within 2 years, and her body mass index was 12.3 kg/m(2).

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