A study funded by the British Heart Foundation has provided evidence that breast cancer survivors whose hearts have recovered from treatment-related damage may not require lifelong heart medication, challenging current clinical practice.
The trial involved 90 women in their 40s and 50s across four UK hospitals who had experienced heart function decline during cancer treatment but whose cardiac health subsequently improved. Researchers monitored patients who discontinued heart medications and found that 98% of those who stopped taking the drugs maintained stable heart function over the course of one year, with only one woman developing a problem with her heart’s pumping ability. The study was published in the Heart Journal and led by Prof Charlotte Manisty, head of clinical cardiovascular science at University College London.
Current clinical guidance typically recommends that breast cancer survivors remain on heart-protective medications indefinitely following treatment that damages cardiac function. However, the trial results suggest this approach may warrant reconsideration for patients whose hearts have recovered. Women who discontinued medication reported improved quality of life in questionnaires, citing reduced side effects and decreased psychological burden associated with long-term medication management.
Lucy Shepherd, a patient participant from Hertfordshire who was diagnosed with triple positive breast cancer at age 33, described how participation in the trial improved her wellbeing by allowing her to stop heart medications that had caused low heart rate and fatigue. She noted that the uncertainty about whether to continue treatment had created significant mental strain during her recovery.
Researchers emphasized that participants will continue to be monitored over the next five years to track long-term heart health outcomes. Dr Sonya Babu-Narayan, clinical director at the British Heart Foundation, stated that the findings provide hope for the thousands of survivors affected by cardiac complications from cancer treatment, potentially enabling many women to safely discontinue medications once their hearts have recovered.
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