Key result
Cardiogenic shock in myocardial infarction was associated with considerably higher and sustained increases in plasma noradrenaline and adrenaline concentrations until death compared to uncomplicated MI.
Why the study?
How do plasma catecholamine levels differ between patients with myocardial infarction complicated by cardiogenic shock versus uncomplicated myocardial infarction?
Observational
How do plasma catecholamine levels differ between patients with myocardial infarction complicated by cardiogenic shock versus uncomplicated myocardial infarction?
Patients with cardiogenic shock complicating myocardial infarction exhibit persistently elevated and higher levels of plasma catecholamines compared to those with uncomplicated MI.
Answers are grounded in this paper and cite their sources.
May signal heightened sympathetic drive in MI shock; leaves open whether modulation improves outcomes in trials.
In patients with myocardial infarction, with or without cardiogenic shock, plasma noradrenaline and adrenaline concentrations are increased. However, plasma noradrenaline concentrations are considerably higher in patients with cardiogenic shock when compared with those with uncomplicated myocardial infarction. Plasma noradrenaline and adrenaline concentrations showed a sustained increase until death in patients with cardiogenic shock whereas those concentrations were back to normal levels by the end of the third day in patients with uncomplicated myocardial infarction. Plasma dopamine-beta-hydroxylase activities in both the groups were within normal range and did not show any significant variation throughout the period of study.
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Benedict et al. (1979) conducted an observational in Myocardial infarction with and without cardiogenic shock. Cardiogenic shock vs. Uncomplicated myocardial infarction was evaluated on Plasma noradrenaline and adrenaline concentrations and dopamine-beta-hydroxylase activity. Cardiogenic shock in myocardial infarction was associated with considerably higher and sustained increases in plasma noradrenaline and adrenaline concentrations until death compared to uncomplicated MI.
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