Key result
IV propranolol lowers cardiac output and blood pressure more in MI versus stable angina.
Why the study?
The influence of sympathetic activation on the haemodynamic response to intravenous beta-blockade in acute myocardial infarction was evaluated.
Does intravenous propranolol elicit different haemodynamic responses in patients with acute myocardial infarction compared to those with stable angina?
Does intravenous propranolol elicit different haemodynamic responses in patients with acute myocardial infarction compared to those with stable angina?
p-value: p=<0.05
Acute myocardial infarction is associated with an augmented haemodynamic response to intravenous propranolol compared to stable angina, likely due to a heightened sympathetic state.
No takes yet. Share an insight, caveat, or question.
May warrant hemodynamic caution with IV propranolol in acute MI; leaves open mechanisms and outcome impact.
Silke et al. (1984) studied Acute myocardial infarction and stable angina (n=16). Intravenous propranolol vs. Patients with stable angina was evaluated on Haemodynamic response (cardiac output) (p=<0.05). Intravenous propranolol induced significantly greater falls in cardiac output (P<0.05) and a dose-related decrease in systemic blood pressure in myocardial infarction compared to stable angina.
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