Why the study?
Does dobutamine have different cardiovascular effects compared to isoprenaline in patients early after mitral or aortic valve replacement?
Population
11 patients who had undergone operation for replacement of the mitral or aortic valve approximately four…
Comparison
Dobutamine vs Isoprenaline assessed in 9 of the patients
Design
Other
Authors
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Indicates similar post-valve replacement responses to both agents; challenges prior differential chronotropy reports but leaves open confirmation in randomized trials.
Does dobutamine have different cardiovascular effects compared to isoprenaline in patients early after mitral or aortic valve replacement?
In patients early after valve replacement, dobutamine and isoprenaline produce similar dose-dependent increases in heart rate and cardiac output, contrasting with previous studies suggesting dobutamine has less chronotropic effect.
Kersting et al. (1976) studied this question.
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