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[Hepatic blood flow and the liver mono-oxygenase system in patients with ischemic heart disease]
Insights
Ischemic heart disease patients with angina pectoris showed reduced hepatic blood flow and impaired antipyrine metabolism. These liver function changes worsened with increased angina severity, impacting drug processing.
Area of Science:
- Cardiology
- Hepatology
- Pharmacology
Background:
- Ischemic heart disease (IHD) affects liver function.
- Effort angina is a common symptom of IHD.
- Hepatic monooxygenase system activity is crucial for drug metabolism.
Purpose of the Study:
- To investigate hepatic blood flow and monooxygenase system activity in patients with angina pectoris.
- To assess the relationship between angina severity and liver function.
- To evaluate the impact on drug pharmacokinetics.
Main Methods:
- Studied 68 patients with functional class III-IV effort angina and 12 healthy controls.
- Measured hepatic blood flow index.
- Assessed antipyrine pharmacokinetics as a marker of monooxygenase system activity.
Main Results:
- Patients with angina pectoris exhibited a decreased hepatic blood flow index.
- Impaired pharmacokinetic parameters of antipyrine were observed in angina patients.
- The severity of these impairments correlated with the clinical severity of angina pectoris.
Conclusions:
- Angina pectoris is associated with reduced hepatic blood flow.
- Liver drug-metabolizing capacity is compromised in IHD patients with angina.
- Clinical severity of angina pectoris dictates the degree of hepatic dysfunction and impaired drug metabolism.
Abstract:
The hepatic blood flow and monooxygenase system activity were studied in 68 ischemic [correction of coronary] heart disease patients aged 37-68 [correction of 40-80] years who had functional class III-IV effort angina and 12 healthy volunteers matched by age. An analysis of the finding indicated that in patients with angina pectoris, the hepatic blood flow index decreased, the pharmacokinetic parameters of antipyrin impaired, the degree of these impairments depended on the severity of the clinical course of angina pectoris.