Cardiotoxicity Associated with Trastuzumab Therapy in Taiwan: A Single Medical Center's 5-Year Experience
Introduction: Trastuzumab, a recombinant humanized monoclonal antibody, targets the external domain of HER2 to improve the efficacy of HER2-positive breast cancer treatment and inhibit carcinoma cellular proliferation. The purpose of this study was to identify early changes in cardiac function and d...
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| Format: | Article |
| Language: | English |
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Wolters Kluwer Medknow Publications
2015-06-01
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| Series: | Journal of Cancer Research and Practice |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2311300616300702 |
| _version_ | 1818066731103420416 |
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| author | Che-Ming Chang Fiona Tsui-Fen Cheng Tsen-Long Yang Wu-Chin Wen |
| author_facet | Che-Ming Chang Fiona Tsui-Fen Cheng Tsen-Long Yang Wu-Chin Wen |
| author_sort | Che-Ming Chang |
| collection | DOAJ |
| description | Introduction: Trastuzumab, a recombinant humanized monoclonal antibody, targets the external domain of HER2 to improve the efficacy of HER2-positive breast cancer treatment and inhibit carcinoma cellular proliferation. The purpose of this study was to identify early changes in cardiac function and dimensional changes in heart size in patients treated with trastuzumab.
Materials and Methods: Seventy three female patients with Her2/neu overexpression (IHC 3+/Fish +) in breast cancer underwent echocardiography before and after trastuzumab therapy.
Results: Cardiac complications developed in 14 patients (19.2%), including asymptomatic left ventricle systolic dysfunction (n = 12), symptomatic heart failure (n = 2), new asymptomatic left bundle branch block (n = 1), new negative T waves on electrocardiogram (n = 2), pericardial effusion (n = 1), and death (n = 1). No significant deterioration in diastolic function was noted, and right heart diameters and function did not change significantly. Most patients remained in an asymptomatic stage of cardiac disease. A significant decrease in left ventricular ejection fraction (LVEF) was observed in 14 patients (19.2%), and new mitral regurgitation (≥ grade 1) was noted after 3 months of trastuzumab therapy in 7 patients (9.6%).
Conclusions: Trastuzumab led to measurable decreases in LVEF (but only 2.7% was symptomatic heart failure) and new mitral regurgitation. Therefore, regular follow-up with echocardiography is essential for early detection and prevention of trastuzumab-induced cardiomyopathy. |
| first_indexed | 2024-12-10T15:12:26Z |
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| id | doaj.art-81712c4db04343d5979c8d73fa6a2d7a |
| institution | Directory Open Access Journal |
| issn | 2311-3006 |
| language | English |
| last_indexed | 2024-12-10T15:12:26Z |
| publishDate | 2015-06-01 |
| publisher | Wolters Kluwer Medknow Publications |
| record_format | Article |
| series | Journal of Cancer Research and Practice |
| spelling | doaj.art-81712c4db04343d5979c8d73fa6a2d7a2022-12-22T01:43:54ZengWolters Kluwer Medknow PublicationsJournal of Cancer Research and Practice2311-30062015-06-012213915010.6323/JCRP.2015.2.2.05Cardiotoxicity Associated with Trastuzumab Therapy in Taiwan: A Single Medical Center's 5-Year ExperienceChe-Ming Chang0Fiona Tsui-Fen Cheng1Tsen-Long Yang2Wu-Chin Wen3Division of Cardiology, Department of Internal Medicine, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei, TaiwanDivision of General Surgery, Department of Surgery, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei, TaiwanDivision of General Surgery, Department of Surgery, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei, TaiwanDivision of Hematology and Oncology, Department of Internal Medicine, Shin-Kong Wu Ho-Su Memorial Hospital, Taipei, TaiwanIntroduction: Trastuzumab, a recombinant humanized monoclonal antibody, targets the external domain of HER2 to improve the efficacy of HER2-positive breast cancer treatment and inhibit carcinoma cellular proliferation. The purpose of this study was to identify early changes in cardiac function and dimensional changes in heart size in patients treated with trastuzumab. Materials and Methods: Seventy three female patients with Her2/neu overexpression (IHC 3+/Fish +) in breast cancer underwent echocardiography before and after trastuzumab therapy. Results: Cardiac complications developed in 14 patients (19.2%), including asymptomatic left ventricle systolic dysfunction (n = 12), symptomatic heart failure (n = 2), new asymptomatic left bundle branch block (n = 1), new negative T waves on electrocardiogram (n = 2), pericardial effusion (n = 1), and death (n = 1). No significant deterioration in diastolic function was noted, and right heart diameters and function did not change significantly. Most patients remained in an asymptomatic stage of cardiac disease. A significant decrease in left ventricular ejection fraction (LVEF) was observed in 14 patients (19.2%), and new mitral regurgitation (≥ grade 1) was noted after 3 months of trastuzumab therapy in 7 patients (9.6%). Conclusions: Trastuzumab led to measurable decreases in LVEF (but only 2.7% was symptomatic heart failure) and new mitral regurgitation. Therefore, regular follow-up with echocardiography is essential for early detection and prevention of trastuzumab-induced cardiomyopathy.http://www.sciencedirect.com/science/article/pii/S2311300616300702trastuzumabcardiotoxicitybreast cancerHER2 over expression |
| spellingShingle | Che-Ming Chang Fiona Tsui-Fen Cheng Tsen-Long Yang Wu-Chin Wen Cardiotoxicity Associated with Trastuzumab Therapy in Taiwan: A Single Medical Center's 5-Year Experience Journal of Cancer Research and Practice trastuzumab cardiotoxicity breast cancer HER2 over expression |
| title | Cardiotoxicity Associated with Trastuzumab Therapy in Taiwan: A Single Medical Center's 5-Year Experience |
| title_full | Cardiotoxicity Associated with Trastuzumab Therapy in Taiwan: A Single Medical Center's 5-Year Experience |
| title_fullStr | Cardiotoxicity Associated with Trastuzumab Therapy in Taiwan: A Single Medical Center's 5-Year Experience |
| title_full_unstemmed | Cardiotoxicity Associated with Trastuzumab Therapy in Taiwan: A Single Medical Center's 5-Year Experience |
| title_short | Cardiotoxicity Associated with Trastuzumab Therapy in Taiwan: A Single Medical Center's 5-Year Experience |
| title_sort | cardiotoxicity associated with trastuzumab therapy in taiwan a single medical center s 5 year experience |
| topic | trastuzumab cardiotoxicity breast cancer HER2 over expression |
| url | http://www.sciencedirect.com/science/article/pii/S2311300616300702 |
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