Clinical and electrocardiography changes in patients treated with capecitabine

Chemotherapy. 2011;57(5):381-7. doi: 10.1159/000331645. Epub 2011 Oct 12.

Abstract

Background: We aimed to identify the incidence of cardiac events with capecitabine treatment.

Methods: The study included 52 patients (median age 59 years) with cancer treated at our Medical Oncology Clinic between 2009 and 2010. Cardiac events from capecitabine treatment were classified into 4 groups: cardiac symptoms, physical signs, electrocardiography (ECG) findings, and severe adverse cardiac effects.

Results: The patients received either single-agent capecitabine or a combination chemotherapy including capecitabine. After initiation of capecitabine, 18 patients (34.6%) had new onset cardiovascular symptoms, 6 (11.5%) had new onset physical signs and 17 (32.6%) had new onset ECG findings. New onset ECG findings included prolonged corrected QT interval (n = 10, 19.2%) and prolonged PR interval (n = 3, 5.8%). Severe adverse capecitabine-induced cardiac side effects were observed in 5.8% of the patients, but none of the patients had myocardial infarction or died.

Conclusion: Cardiac events are not rare during capecitebine treatment and patients should be followed closely to avoid cardiac morbidity and mortality.

MeSH terms

  • Capecitabine
  • Cardiovascular Diseases / chemically induced*
  • Cardiovascular Diseases / physiopathology*
  • Deoxycytidine / administration & dosage
  • Deoxycytidine / adverse effects
  • Deoxycytidine / analogs & derivatives*
  • Electrocardiography / drug effects*
  • Female
  • Fluorouracil / administration & dosage
  • Fluorouracil / adverse effects
  • Fluorouracil / analogs & derivatives*
  • Humans
  • Long QT Syndrome / chemically induced
  • Long QT Syndrome / physiopathology
  • Male
  • Middle Aged
  • Neoplasms / drug therapy
  • Neoplasms / physiopathology*
  • Treatment Outcome

Substances

  • Deoxycytidine
  • Capecitabine
  • Fluorouracil