Publications by authors named "Hyeun S Park"

Background: Capsule endoscopy (CE) is now widely accepted as a first-line diagnostic modality for obscure GI bleeding (OGIB). However, the clinical implications of negative results of CE studies remain unclear.

Objective: To investigate long-term (>1 year) outcomes for patients undergoing CE for OGIB and to identify risk factors associated with rebleeding.

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Background: The effect of age and gender on tissue Doppler imaging measurements comparing the septal and mitral annulus needs to be investigated.

Methods: We investigated in 276 outpatients in a university cardiology practice the relationship of age and gender to left atrial (LA) size, LA volume, mitral pulse-wave Doppler E/A ratio, E/Ea ratios by tissue Doppler image of mitral annular velocity (TDI), and left ventricular diastolic dysfunction (LVDD) by TDI.

Results: Mitral E/A inflow was statistically decreased with age.

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Left ventricular diastolic dysfunction (LVDD) was investigated in 276 outpatients at a university cardiology practice by tissue Doppler imaging of mitral valve annular velocity. The well-investigated parameters of mitral inflow were used as the standard. Using septal E/Ea ratios, 62 patients (22%) had no LVDD, 44 patients (16%) had mild LVDD, 126 patients (46%) had moderate LVDD, 25 patients (9%) had severe LVDD, and 19 patients (7%) had indeterminate LVDD.

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