Publications by authors named "D Nagahara"

Background: In contrast to the well-known prognostic values of the cardiorenal linkage, it remains unclear whether impaired cognitive function affects cardiac prognosis in relation to cardiac sympathetic innervation and renal function in patients with heart failure (HF).

Methods And Results: A total of 433 consecutive HF patients with left ventricular ejection fraction (LVEF) <50% underwent the Mini-Mental State Examination (MMSE) and a neuropsychological test for screening of cognition impairment or subclinical dementia. Following metaiodobenzylguanidine (MIBG) scintigraphy, patient outcomes with a primary endpoint of lethal cardiac events (CEs) were evaluated for a mean period of 14.

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Article Synopsis
  • Infective endocarditis (IE) is a severe condition with high mortality rates if not diagnosed and treated quickly, but studies on in-hospital death rates related to lab findings and causative organisms are limited.
  • A study analyzed 162 patients from 2009 to 2021, confirming IE with transesophageal echocardiography and focusing on factors associated with in-hospital death.
  • Significant findings indicated that lower hemoglobin levels, higher white blood cell counts, lower eGFR, and the presence of Staphylococcus as the causative agent were key predictors of higher in-hospital mortality risk in IE patients.
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Aims: Cardiac mortality in patients with heart failure (HF) is likely to be aggravated by malnutrition, assessed by serum cholinesterase (ChE) level, as well as by kidney dysfunction or impairment of cardiac sympathetic denervation. Their prognostic interactions, however, have not been determined.

Methods: A total of 991 systolic HF patients were enrolled in our HF database following clinical evaluation including evaluation of the nutrition state and assessment of standardized heart-to-mediastinum ratio (sHMR) of iodine-123-labeled meta-iodobenzylguanidine activity.

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Background: Earlier studies have shown male dominance of an early repolarization (ER) pattern and frequent coexistence with high Sokolow-Lyon voltage. Although possible involvement of androgen is speculated, the underlying mechanism has not been clarified yet. Previous studies were conducted in adult populations or only in children, and there has been no study in which the ER pattern was investigated in a series of individuals ranging from children before puberty to adults.

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