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  • Title: Acute effects of ibopamine hydrochloride on hemodynamics, plasma catecholamine levels, renin activity, aldosterone, metabolism and blood gas in patients with severe congestive heart failure.
    Author: Nakano T, Morimoto Y, Kakuta Y, Konishi T, Kodera T, Kanamaru M, Takezawa H.
    Journal: Arzneimittelforschung; 1986 Dec; 36(12):1829-34. PubMed ID: 3551968.
    Abstract:
    Acute effects of 200 mg of orally given 4-[2-(methylamino)ethyl]-o-phenylene diisobutyrate hydrochloride (ibopamine hydrochloride) which is a new diisobutyric ester of N-methyldopamine, on hemodynamics and metabolism were evaluated in 11 patients with severe heart failure (New York Heart Association class IV). Significant effects occurred within 30 min and persisted for 6 h after dosing. Peak effects were observed at 2 h. At peak effects, cardiac index increased from 2.53 to 3.07 l/min/m2 (+20%, p less than 0.01), stroke volume index from 35 to 41 ml/beat/m2 (+18%, p less than 0.05), stroke work index from 35 to 44 g X m/beat/m2 (+26%, p less than 0.05), epinephrine from 0.05 to 0.15 ng/ml (+200%, p less than 0.05), urine volume from 50 to 81 ml/h (+61%, p less than 0.05), pulmonary capillary wedge pressure decreased from 23 to 18 mmHg (-24%, p less than 0.001), mean pulmonary arterial pressure from 33 to 27 mmHg (-19%, p less than 0.001), right atrial pressure from 10 to 7 mmHg (-27%, p less than 0.001), systemic vascular resistance from 1735 to 1546 dyne X s X cm-5 (-11%, p less than 0.1), pulmonary vascular resistance from 204 to 168 dyne X s X cm-5 (-25%, p less than 0.05), arterio-venous oxygen difference from 6.09 to 5.36 ml/dl (-12%, p less than 0.05), norepinephrine from 0.45 to 0.34 ng/ml (-24%, p less than 0.1), renin activity 1.80 to 1.26 ng/ml/h (-30%, p less than 0.05), respectively, whereas there were no significant changes in blood gases, heart rate, blood pressure, double product, aldosterone, urine Na+, K+ or lactate/pyruvate.(ABSTRACT TRUNCATED AT 250 WORDS)
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