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The impact of third-generation beta-blocker antihypertensive treatment on endothelial function and the prothrombotic
Gregory P Vyssoulis1, Andreas G Marinakis, Konstantinos A Aznaouridis
1First Cardiology Department of Athens University, Hippokration Hospital, Athens, Greece.
Insights
Nebivolol significantly reduced prothrombotic markers in hypertensive smokers, unlike carvedilol. Smoking status is crucial for selecting antihypertensive treatments, with nebivolol showing benefits in smokers.
Area of Science:
- Cardiovascular Pharmacology
- Hypertension Management
- Thrombosis Research
Background:
- Beta-blockers are vital for cardiovascular disease treatment.
- The impact of vasodilating beta-blockers on endothelial function and prothrombotic states remains under-investigated.
Purpose of the Study:
- To investigate the effects of vasodilating beta-blockers (celiprolol, carvedilol, nebivolol) on prothrombotic markers in hypertensive patients.
- To determine if smoking status influences the efficacy of these beta-blockers on prothrombotic markers.
Main Methods:
- A study involving 550 hypertensive patients treated with monotherapy of celiprolol, carvedilol, or nebivolol.
- Measurements of plasma fibrinogen, homocystine, and serum plasminogen activator inhibitor-1 (PAI-1) before and after 6 months of treatment.
Main Results:
- Nebivolol, celiprolol, and carvedilol showed significant differences in reducing homocystine and fibrinogen levels.
- In smokers, all three drugs differentially affected fibrinogen, PAI-1, and homocystine levels.
- Nebivolol demonstrated a more pronounced reduction in these markers in smokers compared to nonsmokers.
Conclusions:
- Nebivolol significantly decreased PAI-1, fibrinogen, and homocystine in hypertensive smokers.
- Celiprolol showed a lesser but significant effect, while carvedilol had no significant favorable action on these markers in smokers.
- Smoking status should guide the selection of antihypertensive therapy, particularly concerning prothrombotic risk.
Background:
The significance of beta-blockers in the treatment of cardiovascular diseases is well established. The effect of vasodilating beta-blockers on endothelial function and prothrombotic state has not been investigated.
Methods:
The study comprised 550 consecutive patients with uncomplicated essential hypertension. They were treated with celiprolol, carvedilol or nebivolol monotherapy (171, 179, and 200 patients, respectively), achieving comparable blood pressure reduction. Plasma levels of fibrinogen and homocystine and serum levels of plasminogen activator inhibitor-1 (PAI-1) were obtained before and 6 months after initiation of treatment.
Results:
The three drugs differentiated in regard to homocystine (P <.00001) and fibrinogen level changes (P =.00003), but not (P = NS) in PAI-1 change. In smokers, differentiation was found in all three parameters (P =.0002, P =.001, and P =.006 for fibrinogen, PAI-1, and homocystine, respectively), but in nonsmokers differentiation was found only in homocystine change (P =.00003). In smokers, fibrinogen, PAI-1, and homocystine were reduced more (P =.002, P =.0009, and P <.0001, respectively) than in nonsmokers in the whole study cohort. The effect of nebivolol was more prominent in smokers than nonsmokers in reducing all three parameters (P =.0001,.003, and.003, respectively), whereas in celiprolol and carvedilol-treated groups, differentiation between smokers and nonsmokers was significant (P =.00003 and.01, respectively) only in homocystine level change.
Conclusions:
In hypertensive smokers, nebivolol resulted in a significant decrease of plasma PAI-1, fibrinogen and homocystine. Celiprolol also significantly affected these parameters but to a lesser degree, whereas carvedilol had no significant favorable action. In nonsmokers, homocystine was reduced significantly by nebivolol. We conclude that smoking status should be a determinant of antihypertensive treatment choice.
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