Evaluating the impact of Lutetium-177 therapy on bioprosthetic heart valves in carcinoid heart disease
摘要
Severe carcinoid heart disease (CaHD) may require bioprosthetic valve (BPV) replacement. Lutetium-177 (Lu-177) DOTATATE is increasingly utilized in patients with neuroendocrine tumors (NETs); however, its effect on BPVs remains unknown.
MethodsA retrospective review of patients with CaHD who underwent BPV replacement at three tertiary centers in the United States was conducted. Patients were stratified by Lu-177 DOTATATE therapy with a propensity-matched non-exposed cohort. BPV degeneration and mortality were compared.
ResultsOf 183 patients with CaHD and BPV replacement (median age 62.9 years, 50.8% male), 27 received Lu-177 DOTATATE (16 postoperatively, 11 preoperatively). BPVs treated with Lu-177 DOTATATE postoperatively demonstrated increased BPV degeneration (HR 4.42, 95%CI 3.29–5.93, p < 0.001). BPVs in patients preoperatively exposed to Lu-177 DOTATATE showed no difference in degeneration. There was no difference in mortality in those treated or not treated with Lu-177 DOTATATE.
ConclusionsOur findings suggest an association between postoperative Lu-177 DOTATATE and increased BPV degeneration in CaHD patients. Where feasible, therapy prior to valve replacement should be considered.
Graphical Abstract