title: [Trastuzumab-associated cardiac dysfunction].
abstract: We analyzed 127 consecutive patients who received trastuzumab-based chemotherapy from December, 2003 to February, 2009 in our hospital. Of 127 patients, cardiac dysfunction appeared in 6 patients(4. 7%). Cardiac dysfunction was defined as a decline in left ventricular (LV) ejection fraction (EF) < or =55% with absolute reduction of at least 10% from baseline. Among the 6 patients with cardiac dysfunction, one patient suffered symptomatic heart failure. Other patients were asymptomatic. The 4 patients of the 5 patients recovered their cardiac dysfunction after withdrawal of trastuzumab. Patients with trastuzumab-associated cardiac dysfunction had a history of administration of epirubicin or taxane, lower registration LVEF, and larger LV end-diastolic dimension (> or =49 mm). We recommend that LV function be assessed by echocardiography or multigated radionuclide angiography scans prior to instituting trastuzumab therapy and at three-month intervals during therapy. Trastuzumab should be discontinued in patients who develop a decrease in LVEF below 45% or congestive heart failure.
authors.affiliation: Department of Internal Medicine, Niigata Cancer Center Hospital.
authors.forename: Yoshinobu
authors.initials: Y
authors.lastname: Okada
authors.forename: Chizuko
authors.initials: C
authors.lastname: Kanbayashi
authors.forename: Nobuaki
authors.initials: N
authors.lastname: Sato
mesh_terms: D000328:Adult; D000369:Aged, 80 and over; D000911:Antibodies, Monoclonal / Q000009:adverse effects* / Q000627:therapeutic use; D061067:Antibodies, Monoclonal, Humanized; D000970:Antineoplastic Agents / Q000009:adverse effects* / Q000627:therapeutic use; D001943:Breast Neoplasms / Q000188:drug therapy*; D004452:Echocardiography; D005260:Female; D006331:Heart Diseases / Q000139:chemically induced* / Q000000981:diagnostic imaging / Q000503:physiopathology; D006801:Humans; D008875:Middle Aged; D000068878:Trastuzumab
chemical_list: D000911:Antibodies, Monoclonal; D061067:Antibodies, Monoclonal, Humanized; D000970:Antineoplastic Agents; D000068878:Trastuzumab