Abstract
Objective: To describe the case of a patient with breast neoplasia, attended at a private hospital, a reference in oncology, in the city of Belém-Pa, who developed cardiotoxicity, symptomatic heart failure and NYHA functional class IV during specific treatment. Method: Cross-sectional, descriptive work, of the Case Report type, obtained through medical records. Case detail: Female, 45 years old, brown, native of Belém-Pa, without previous heart disease. Diagnosed with invasive mammary carcinoma, submitted to neuromuscular chemotherapy (QT) for 4 cycles - Adriamycin and Cyclophosphamide and subsequently Paclitaxel for 4 cycles. HER-2 score 1, hormone receptor positive and KI The patient had a good clinical evolution, reaching functional class I and reversion of left ventricular dysfunction (LVEF 56%), after 6 months of specific treatment, which was maintained for an indefinite period, due to the type I cardiotoxicity. Conclusion: The development of specific protocols in the various institutions of our region, whether public or private, are fundamental for the proper management of patients. cardiology and oncology contributes to the better evolution of patients, with the main objectives being the adoption of strategies of prevent.