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[Structural and functional state of the vascular wall and hemostasis in chronic ischemic heart disease]
Insights
This study on chronic ischaemic heart disease patients found hypercoagulation linked to coronary artery changes and reactivity. Increased haemocoagulation potential correlates with significant arterial lesions and microvessel sensitivity to adrenaline.
Area of Science:
- Cardiology
- Haematology
- Vascular Biology
Background:
- Chronic ischaemic heart disease (IHD) involves complex pathophysiological changes.
- Haemocoagulation plays a critical role in cardiovascular health and disease progression.
- Understanding factors influencing hypercoagulation in IHD is crucial for patient management.
Purpose of the Study:
- To investigate the relationship between coronary artery state and haemocoagulation parameters in IHD patients.
- To identify specific haemocoagulation changes associated with varying degrees of coronary atherosclerosis.
- To explore the role of vascular reactivity in the development of hypercoagulation in IHD.
Main Methods:
- Coronarography was performed on 83 patients with chronic IHD.
- Blood coagulation parameters, including blood heparin and dissolved fibrin, were analyzed.
- Vascular reactivity, specifically microvessel sensitivity to adrenaline, was assessed.
Main Results:
- No significant differences in overall blood coagulation were observed between patients with intact and slightly sclerosed coronary arteries.
- Certain parameters, such as blood heparin and dissolved fibrin, indicated a trend towards hypercoagulation even with intact vessels.
- A marked increase in haemocoagulation potential was observed only when total coronary artery lesion exceeded 50% and 75%.
- Elevated haemocoagulation activity correlated with increased microvessel sensitivity to adrenaline.
Conclusions:
- Hypercoagulation in chronic IHD is influenced by factors beyond just atherosclerosis of the vascular wall.
- Changes in vascular reactivity, including heightened sensitivity to adrenaline, contribute to the prothrombotic state in IHD.
- These findings suggest a multifactorial contribution to hypercoagulation in IHD, involving both structural vascular changes and altered vascular function.
Abstract:
Coronarography was used to study the state of haemocoagulation in 83 patients with chronic ischaemic heart disease. No essential differences in the figures of the blood coagulation in patients with intact and slightly sclerosed coronary arteries have been found; certain parameters, the blood heparin, dissolved fibrin were changed towards hypercoagulation with the vessels intact. Marker growth of the haemocoagulation potential was seen only with total lesion of the heart arteries reaching over 50 and 75%. The rise of haemocoagulation activity was noted also as the sensitivity of microvessels to adrenaline rose. It has been concluded that in the development of hypercoagulation not only atherosclerosis of the vascular wall, but changes of its reactivity take part.