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Articles by K Kimura
Total Records ( 2 ) for K Kimura
  K Tanaka , F Akiyama , N Nishikawa , K Kimura , N Gomi , K Oda and T. Iwase
 

OBJECTIVE. We describe the case of a woman with a left breast mass. At mammography, the mass was shown to be irregular and accompanied by coarse calcification. Core needle biopsy revealed invasive carcinoma and a mastectomy was performed. Histopathology showed fibrosis with partial hyalinization eccentrically placed within the tumor with a large area of calcification at the core.

CONCLUSION. Benign calcifications within a breast mass are not diagnostic of a benign process if the imaging characteristics of the mass are suspicious.

  S Yamada , H Ishii , H Takahashi , T Aoyama , Y Morita , H Kasuga , K Kimura , Y Ito , R Takahashi , T Toriyama , Y Yasuda , M Hayashi , H Kamiya , Y Yuzawa , S Maruyama , S Matsuo , T Matsubara and T. Murohara
 

Background and objectives: Cardiac failure is directly affected by left ventricular (LV) dysfunction, and particularly LV systolic dysfunction is strongly associated with survival in ESRD patients. The aim of this study was to determine the prognostic value of reduced LV ejection fraction (LVEF) measured at the time of initiation of hemodialysis (HD) in incident HD patients.

Design, setting, participants, & measurements: 1254 consecutive ESRD patients who electively started HD therapy were screened by echocardiography within 1 month after its inception. They were divided into five groups according to LVEF levels with a decrease of 0.1 each and were followed up for up to 7 years. Survival was examined with the Kaplan-Meier method and compared using the log-rank test.

Results: Among the 1254 patients, LVEF levels ≥0.6, 0.5 to 0.6, 0.4 to 0.5, 0.3 to 0.4, and <0.3 were seen in 842 (67.1%), 247 (19.7%), 107 (8.5%), 41 (3.3%), and 17 (1.4%) patients, respectively. On Kaplan-Meier analysis, 7-year event-free rates from cardiovascular death were 84.2, 83.7, 73.6, 59.4, and 30.9% in order of groups with decreasing LVEF of 0.1 each, respectively. Seven-year event-free rates from all-cause death were 69.2, 61.7, 57.1, 45.9, and 23.1% in the respective groups. Even after adjustment for other risk factors, decreasing LVEF was a strong independent predictor for cardiovascular death.

Conclusions: Reduced LVEF on starting HD therapy could stratify risk of cardiovascular and all-cause mortality in ESRD patients. Screening by echocardiography at start of HD therapy might be recommended to predict prognosis in patients with ESRD.

 
 
 
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