Gardarn Physical activity and survival after colorectal cancer diagnosis. Cardiac function following combination therapy with paclitaxel and doxorubicin: High risk of vascular events in patients with urothelial transitional cell carcinoma treated with cisplatin based chemotherapy. Villa Clara, Cuba corsalud infomed. Nevertheless, this quimioterapai been obscured by the toxicity of these therapies.
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Its early detection by transthoracic echocardiogram allows the modification of therapeutic schemes and the initiation of cardioprotective drugs. OBJECTIVE: to evaluate the presence of trastuzumab cardiotoxicity manifested as left ventricular dysfunction assessed by transthoracic echocardiogram and its evolution with trastuzumab suspension and initiation of cardioprotective drugs.
Age, stage of the disease, cardiovascular risk factors , number of trastuzumab cycles, exposure time , left ventricular ejection fraction , reduction percentage and time to normalization were recorded. Left ventricular ejection fraction was calculated by the Simpson method. The numerical variables are expressed as median and range. RESULTS: of a total of 43 patients at risk of trastuzumab -induced cardiac dysfunction, during the period , results of the eight cases that met the inclusion criteria are shown.
All were asymptomatic. All the patients temporarily suspended trastuzumab and they initiated enalapril losartan if there was intolerance and carvedilol. Left ventricular ejection fraction normalization occurred in all patients. The time between ventricular dysfunction and normalization of left ventricular ejection fraction was The ventricular dysfunction appeared early in 2 patients cycles 5 and 6 of trastuzumab and in the rest , between cycles 10 and The patients with early manifestation had a delayed recovery of left ventricular ejection fraction and days respectively.
After normalization of ventricular dysfunction , all patients restarted treatment with trastuzumab while maintaining cardioprotective treatment. CONCLUSIONS: in this number of cases, we observed two different patterns of trastuzumab -induced cardiac dysfunction, one with earlier manifestation and greater delay in left ventricular ejection fraction recovery.
Cardiac dysfunction was reversible and all patients could continue treatment. It is the intention of the working group to continue investigating on this topic through observational cohort and randomized clinical studies to analyze the risk factors for the development of trastuzumab -induced cardiac dysfunction, as well as eventual preventive measures.
¿Son eficaces el lisinopril y el carvedilol para prevenir la cardiotoxicidad por trastuzumab?
CARDIOTOXICIDAD INDUCIDA POR FÁRMACOS ANTINEOPLÁSICOS