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[Catecholamines and other vasoactive substances in blood in cardiogenic shock]
Insights
Blood levels of vasoactive substances like catecholamines, serotonin, histamine, and acetylcholine showed wide variations in patients with coronary shock. No clear patterns emerged, though noradrenaline was higher in severe shock.
Area of Science:
- Biochemistry
- Cardiology
- Pharmacology
Context:
- Coronary shock is a critical condition characterized by impaired cardiac output and tissue perfusion.
- Vasoactive substances play a crucial role in regulating vascular tone and systemic hemodynamics.
- Understanding the role of these substances in shock is vital for developing effective therapeutic strategies.
Purpose:
- To investigate the dynamic changes in blood levels of key vasoactive substances in patients experiencing severe and moderate coronary shock.
- To identify any correlations between specific vasoactive substances and the severity of coronary shock or associated cardiac conditions like atrioventricular block and bradycardia.
Summary:
- This study analyzed blood levels of catecholamines, serotonin, histamine, and acetylcholine in 17 patients with coronary shock.
- Results indicated significant variability in these vasoactive substance levels, with no consistent patterns observed across all patients.
- A trend of higher average noradrenaline levels was noted in severe shock compared to moderate cases. Additionally, lower levels of noradrenaline and acetylcholine were observed in patients with complete atrioventricular block and bradycardia.
- Dynamic monitoring revealed intermittent, phase-like fluctuations in histamine and serotonin levels in some patients, with similar patterns occasionally seen in noradrenaline and acetylcholine.
Impact:
- The findings highlight the complex and variable nature of vasoactive substance dysregulation in coronary shock.
- This research may inform future studies aimed at understanding the pathophysiology of shock and identifying potential biomarkers or therapeutic targets.
- Further investigation into the dynamic behavior of these substances could lead to improved diagnostic and prognostic tools for coronary shock management.
Abstract:
The blood levels of catecholamines, serotonin, histamine and acetylcholine were studied in 17 patients with severe and moderate coronary shock. The blood level of the above vasoactive substances varied widely, and no clear regularity was noted in the changes of the content of the catecholamines, histamine, serotonin and acetylcholine. A relatively higher (on the average) level of noradrenaline was noted in severe shock, in contrast to the moderate cases, as well as a relatively low level of noradrenaline and acetylcholine in the blood of patients with a full atrioventricular block and bradycardia. In studying the vasoactive substances dynamically similar, phase-like fluctuations of the blood level of histamine and serotonin were noted in some patients. In a few cases similar, often phase-like, changes were also noted in the blood content of noradrenaline and acetylcholine