Myocardial preservation by therapy with coenzyme Q10 during heart surgery
| Autor: | Karl Folkers, W. W. Stogsdill, W. V. Judy |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Cardiac function curve
Male medicine.medical_specialty Ubiquinone Cardiac index Respiratory chain Coenzymes Placebo chemistry.chemical_compound Double-Blind Method Risk Factors Internal medicine Drug Discovery medicine Humans Heart Function Tests Genetics (clinical) Aged Coenzyme Q10 Ejection fraction business.industry General Medicine Free radical scavenger Combined Modality Therapy Surgery chemistry Anesthesia Cardiology Molecular Medicine Female business Cardiomyopathies |
| Zdroj: | The Clinical investigator. 71 |
| ISSN: | 0941-0198 |
| Popis: | Coenzyme Q10 (CoQ10) is a natural and essential cofactor in the heart. It is the primary redox coupler in the respiratory chain, a potent free radical scavenger, and a superoxide inhibitor. In this study the myocardial protective effects of CoQ10 were determined in high-risk (n = 10) patients during heart surgery compared to that found in placebo controls (n = 10). In both groups, there was a blood CoQ10 deficiency (< 0.6 microgram/ml), low cardiac index (CI < 2.4 l/m2 per minute), and low left ventricular ejection fraction (LVEF < 35%) before treatment. CoQ10 (100 mg per day) was given orally for 14 days before and 30 days after surgery. Presurgical CoQ10 treatment significantly (P < 0.01) improved blood and myocardial CoQ10 and myocardial ATP compared to that found in the control group. Cardiac functions (CI and LVEF) were improved but not significantly. After cardiac cooling, rewarming, and reperfusion; blood and tissue CoQ10 and tissue ATP levels were maintained in the normal ranges in the CoQ10 patients. Cardiac pumping (CI) and LVEF were significantly (P < 0.01) improved. The recovery course was short (3-5 days) and uncomplicated. In the control group blood and tissue CoQ10, tissue ATP levels, and cardiac functions were depressed after surgery. The recovery course was long (15-30 days) and complicated. Positive relationships between blood and myocardial CoQ10, myocardial ATP, cardiac function, and the postoperative recovery time and course found in both study groups show the therapeutic benefits of CoQ10 in preserving the myocardium during heart surgery.(ABSTRACT TRUNCATED AT 250 WORDS) |
| Databáze: | OpenAIRE |
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