title: Echocardiographic tools for pacemaker optimization of ventricular function in an infant following surgical repair for double outlet right ventricle.
abstract: A case of an infant, following surgical repair for double outlet right ventricle, who developed low cardiac output syndrome and complete heart block that required insertion of a pacemaker is presented. The infant underwent optimization of his ventricular function to determine whether pacing the right ventricle or left ventricle or both would improve cardiac function. Using standard two-dimensional echocardiography and Doppler imaging, tissue synchronization imaging, and two-dimensional speckle-tracking strain analysis, improvement in cardiac output and function was demonstrated. The present case highlights the usefulness of newer echocardiographic techniques in pacemaker optimization in the acute postoperative setting.
authors.affiliation: BC Children's Hospital, Department of Pediatrics, The University of British Columbia, Vancouver, Canada.
authors.forename: Aamir
authors.initials: A
authors.lastname: Jeewa
authors.forename: Mary T
authors.initials: MT
authors.lastname: Potts
authors.forename: Shubhayan
authors.initials: S
authors.lastname: Sanatani
authors.forename: Walter J
authors.initials: WJ
authors.lastname: Duncan
mesh_terms: D058406:Cardiac Resynchronization Therapy; D004310:Double Outlet Right Ventricle / Q000000981:diagnostic imaging* / Q000601:surgery*; D015150:Echocardiography, Doppler; D006801:Humans; D007223:Infant; D008297:Male; D010138:Pacemaker, Artificial; D016276:Ventricular Function