ABSTRACT
Background: Chemotherapy-induced cardiotoxicity is a significant problem, ranking as the second most frequent cause of mortality in cancer patients. This adverse outcome encompasses many cardiovascular problems, such as heart failure. Sacubitril/valsartan has shown potential in the management of heart failure, however, its effectiveness in treating chemotherapy-induced heart failure has not been extensively explored. We performed a case series to investigate the safety and effectiveness of sacubitril/valsartan in treating chemotherapy-induced cardiomyopathy in Saudi Arabia. Methods: The case series was conducted at a single medical center in Makkah, Saudi Arabia. The data gathered included patient demographics, clinical features, laboratory results, echocardiographic findings, and medication information. The data underwent analysis using descriptive statistics. Results: Out of the total of eight patients who were part of the investigation, a notable majority of six individuals exhibited substantial enhancements in their ejection fraction (EF) after receiving sacubitril/valsartan medication. Conclusion: Our case series provides significant insights by revealing improvements in ejection fraction (EF) in six out of eight patients who had chemotherapy-induced cardiomyopathy after receiving sacubitril/valsartan treatment.
ABSTRACT
INTRODUCTION: Breast cancer is a global health concern, with a significant portion of patients exhibiting human epidermal growth factor receptor 2 (HER2) overexpression. Trastuzumab is one of the pivotal therapies for HER2-positive breast cancer, but it carries the risk of cardiotoxicity. Guidelines for cardiac monitoring are essential to detect early signs of cardiotoxicity. However, adherence to these guidelines remains uncertain. METHOD: In this single-center retrospective cohort study, we analyzed data from 167 female patients diagnosed with HER2-positive breast cancer who were treated with trastuzumab. We meticulously assessed the level of adherence to cardiac monitoring guidelines and determined the incidence of trastuzumab-induced cardiotoxicity (TIC). Factors affecting adherence were subsequently investigated using appropriate statistical methods. RESULTS: Adherence to monitoring guidelines was only 31.7%. TIC incidence was 7.8%. Patients with concurrent use of cardiotoxic medications demonstrated higher adherence. A significant association was found between the number of trastuzumab doses and adherence. CONCLUSION: Adherence to monitoring guidelines was suboptimal. Those at a higher risk of cardiac issues showed greater adherence. Improved risk assessment methods are needed to individualize monitoring and intervention. Future research should focus on patient-centered, evidence-based monitoring to optimize the balance between cancer therapy and cardiac safety in the field of cardio-oncology.
