Predictors of Cardiac Recovery in Adults With AML Who Develop Heart Failure During Treatment.

Purpose: Heart failure is a leading cause of death in patients with AML, who face higher risks of cardiac complications than nonleukemic cancer patients treated with anthracyclines. This study examines factors associated with myocardial dysfunction and recovery occurring during treatment of AML.

Methods: We retrospectively analyzed patients with AML who sustained reduced left ventricular ejection fraction (LVEF) during induction therapy at the University of Washington/Fred Hutchinson Cancer Center (2008-2022). Multivariable analysis compared characteristics between patients who eventually recovered LVEF and those who did not, with survival analysis performed by landmark censoring.

Results: Of 86 patients with AML diagnosed with systolic dysfunction, 41 (48%) failed to recover LVEF. These patients were more frequently male, older than 60 years, had preexisting cardiovascular risk factors, and leukemias of higher risk. Ischemia-related systolic failure was associated with nonrecovery (B = -2.89, P = .005), whereas chemotherapy-related dysfunction was associated with eventual recovery (B = 1.15, P = .014). Frequent use and higher doses of guideline-directed medical therapy (GDMT) were found among patients who recovered LVEF. Failure to recover cardiac function was associated with a greater incidence of cardiac-specific mortality (51% v 23%, P = .042), although impact on overall survival was unclear.

Conclusion: Our retrospective single-center analysis suggests that approximately half of the patients with AML who experience LVEF decline during induction will not recover. Ischemic events during treatment were predictive of nonrecovery. The use of GDMT may improve prognosis for some patients. Given the impact of recovery, we propose the prospective verification and establishment of cardiac management algorithms in patients with AML.