Comparison of effects of enalapril and nitrendipine on cardiac sympathetic nervous system in essential hypertension
Kazuyuki Sakata, MDa,
Manabu Shirotani, MDa,
Hiroshi Yoshida, MDa and
Chinori Kurata, MD*
a Department of Cardiology, Shizuoka General Hospital, Shizuoka, Japan
* Third Department of Internal Medicine, Hamamatsu University School of Medicine, Hamamatsu, Japan

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Figure 1 Comparisons of heart/mediastinum (H/M) ratio and washout rate among 20 normotensive subjects, 22 patients with essential hypertension before enalapril administration, and 24 patients with essential hypertension before nitrendipine administration.
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Figure 2 Comparison of heart/mediastinum (H/M) ratio and washout rate before and 3 months after drug treatment in hypertensive patients treated with enalapril and in those treated with nitrendipine.
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