RT Book, Section A1 Chowdhury, M.H. Ruhe A1 Hardwick, Joanna A1 Kinirons, Mark A1 Harries, Mark A2 Ring, Alistair A2 Harari, Danielle A2 Kalsi, Tania A2 Mansi, Janine A2 Selby, Peter SR Print(0) ID 1152358807 T1 A Patient with Breast Cancer Experiencing Cardiac Toxicity on Chemotherapy T2 Problem Solving in Older Cancer Patients YR 2018 FD 2018 PB Clinical Publishing PP New York, NY SN 9781846921100 LK hemonc.mhmedical.com/content.aspx?aid=1152358807 RD 2021/03/06 AB A 76-year-old woman had a right-side wide local excision with axillary nodal clearance for early breast cancer. Histology showed a pT2 32 mm grade 2 ductal carcinoma, oestrogen receptor-positive (7/8), progesterone receptor-positive (7/8) and human epidermal growth factor receptor 2-positive (3+) with 4/22 lymph node involvement. At the multidisciplinary team (MDT) meeting it was decided that she should be offered chemotherapy and trastuzumab, followed by radiotherapy and an aromatase inhibitor.An essential cardiac history was taken: she had had angina 10 years previously and undergone coronary stent insertion. She had not had chest pain since, but she did describe a 2 year history of fatigue on moderate exertion, no shortness of breath and occasional ankle swelling. ECG showed poor R wave progression. Other comorbidities were hypertension. Clinically, she appeared anxious, BP 150/80 mmHg, with no drop in lying to standing, jugular venous pressure not raised, no heart murmurs, clear lungs, and mild pitting oedema on both ankles. Medications included bisoprolol, aspirin 75 mg, and simvastatin. An echocardiogram showed apical dyskinesia (consistent with ECG) and an ejection fraction of 50%.Optimal adjuvant systemic therapy guidance in the absence of comorbidities would suggest that she should be offered an anthracycline, taxane and trastuzumab-based regimen. Cardiac optimization prior to treatment was undertaken, including increasing the dose of bisoprolol, starting an ACE inhibitor (ramipril), and instituting strategies to reduce anxiety levels.The patient's ejection fraction decreased during treatment and she was managed according to Figure 23.1, with an increase in the dose of ramipril from 1.25 to 3.75 mg. Her ejection fraction increased to 52% and she was able to resume trastuzumab and complete the standard 18 cycles.What is the patient's risk of cardiotoxicity from chemotherapy?How would cardiotoxicity present itself?How can cardiac risk be assessed and monitored?How can the patient's cardiac status be optimized medically?Can alternative chemotherapy regimens be considered to reduce the risk?