Abstract
BackgroundDespite its efficacy, FAC regimen may cause fatal cardiotoxicity. Carvedilol may also exert additional antioxidant effects. This study aimed to assess the effect of carvedilol in preventing decline of left ventricular function in breast cancer patients receiving FAC regimen chemotherapy.MethodsThe study was a quasi-experimental study. The study subjects were consisted of breast cancer patients currently receiving post-first cycle FAC chemotherapy regimen in period of March – May 2019. The study subjects were divided into 2 groups: control and intervention group. In intervention groups, the patients consumed up titrated carvedilol with initial dose of 2 × 6.25 mg daily, follow-up echocardiography was performed for the patients in order to assess GLS score of left ventricle.ResultEighty patients were enrolled to the study, with each group consisted of 40 patients. Patient baseline characteristics were not significantly different between both groups. Left ventricular function was assessed using speckle tracking echocardiography and assessing the change of GLS score. Decrease of GLS score was higher in the intervention group compared to the control group, although the decrease was not statistically significant (0.767 ± 0.355 vs. 0.897 ± 0.526; p = 0.838). Percentage wise, similar findings were reported, albeit no significant (3.34 ± 1.65 vs. 3.46 vs. 2.58; p = 0.968).ConclusionsCarvedilol was not able to prevent the decline of subclinical left ventricular function after such chemotherapy cycle. However, it maybe more likely that the benefits appear in patients whose given larger cumulative dose of anthracycline and have multiple risk factors.
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More From: International journal of cardiology. Heart & vasculature
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