Reversible Biventricular Dysfunction Due to Right Ventricular Pacing in a Patient With Prior Cancer Treatment

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dc.catalogadorjca
dc.contributor.authorSanhueza Zamorano, Sebastián Ignacio
dc.contributor.authorCastillo, Josefina
dc.contributor.authorChiliquinga Morales, David Hernan
dc.contributor.authorBulnes Muzard, Juan Francisco
dc.contributor.authorParedes, Alejandro
dc.date.accessioned2025-11-27T16:18:49Z
dc.date.available2025-11-27T16:18:49Z
dc.date.issued2025
dc.description.abstractBackground: We report the case of a 54-year-old woman with a history of breast cancer treated with chemotherapy, surgery, and thoracic radiotherapy in 2007, who developed pacing-induced cardiomyopathy (PICM) after right ventricular pacing.Case Summary: The patient initially presented with symptomatic trifascicular block and underwent single-chamber pacemaker implantation due to bilateral subclavian vein stenosis, with atrial sensing (VDD mode). Eight months postimplantation, she presented with heart failure symptoms and new-onset biventricular systolic dysfunction. Ventricular pacing was 100% owing to complete atrioventricular block. Coronary angiography was unremarkable, and catheterization confirmed elevated filling pressures without pericardial constrictive physiology.Discussion: Given the patient's lack of candidacy for cardiac resynchronization therapy, medical treatment was optimized, leading to significant functional improvement and recovery of biventricular function within 6 months.Take-Home Message: This case highlights the potential reversibility of pacing-induced cardiomyopathy with optimal medical therapy when cardiac resynchronization therapy is not feasible.
dc.fechaingreso.objetodigital2025-11-27
dc.format.extent7 páginas
dc.fuente.origenORCID
dc.identifier.doi10.1016/j.jaccas.2025.106054
dc.identifier.issn2666-0849
dc.identifier.urihttps://doi.org/10.1016/j.jaccas.2025.106054
dc.identifier.urihttps://repositorio.uc.cl/handle/11534/107170
dc.information.autorucEscuela de Medicina; Sanhueza Zamorano, Sebastián Ignacio; S/I; 179231
dc.information.autorucEscuela de Medicina; Chiliquinga Morales, David Hernan; S/I; 1052605
dc.information.autorucEscuela de Medicina; Bulnes Muzard, Juan Francisco; S/I; 163738
dc.language.isoen
dc.nota.accesocontenido completo
dc.rightsacceso abierto
dc.subject.ddc610
dc.subject.ods03 Good health and well-being
dc.subject.odspa03 Salud y bienestar
dc.titleReversible Biventricular Dysfunction Due to Right Ventricular Pacing in a Patient With Prior Cancer Treatment
dc.typeartículo
sipa.codpersvinculados179231
sipa.codpersvinculados1052605
sipa.codpersvinculados163738
sipa.trazabilidadORCID;2025-11-24
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