title: Trastuzumab-induced cardiotoxicity: heart failure at the crossroads.
abstract: Trastuzumab, a drug targeting human epidermal growth factor receptor 2, improves survival rate in women with metastatic breast cancer. Symptomatic heart failure, a serious adverse effect of trastuzumab, occurs in 1% to 4% of patients treated with the antibody, whereas left ventricular ejection fraction declines substantially in 10% of patients. The prevalence of cardiotoxic effects of trastuzumab appears to increase with exposure to anthracyclines. Serial assessment of left ventricular function with 2-dimensional echocardiography or radionuclide ventriculography is the most practical means of monitoring cardiotoxicity. Patients who develop cardiotoxicity while receiving trastuzumab therapy generally improve once use of the agent is discontinued.
authors.affiliation: Division of Cardiovascular Diseases, Mayo Clinic, 13400 E Shea Blvd, Scottsdale, AZ 85259, USA.
authors.forename: Partho P
authors.initials: PP
authors.lastname: Sengupta
authors.forename: Donald W
authors.initials: DW
authors.lastname: Northfelt
authors.forename: Federico
authors.initials: F
authors.lastname: Gentile
authors.forename: Jose L
authors.initials: JL
authors.lastname: Zamorano
authors.forename: Bijoy K
authors.initials: BK
authors.lastname: Khandheria
mesh_terms: D000367:Age Factors; D018943:Anthracyclines / Q000009:adverse effects; D000911:Antibodies, Monoclonal / Q000009:adverse effects*; D061067:Antibodies, Monoclonal, Humanized; D000970:Antineoplastic Agents / Q000009:adverse effects*; D001943:Breast Neoplasms / Q000188:drug therapy; D005260:Female; D006333:Heart Failure / Q000139:chemically induced* / Q000175:diagnosis / Q000628:therapy; D006801:Humans; D012307:Risk Factors; D000068878:Trastuzumab
chemical_list: D018943:Anthracyclines; D000911:Antibodies, Monoclonal; D061067:Antibodies, Monoclonal, Humanized; D000970:Antineoplastic Agents; D000068878:Trastuzumab