The authors present an unusual case of torsades de pointes (Tdp) in an elderly woman with a history of aortic stenosis, status post aortic valve replacement. She was admitted for atrial fibrillation with a slow ventricular response. At the time of admission, the patient was asymptomatic and not taking any medications known to be associated with QT prolongation. During hospitalization, she developed episodes of Tdp without any provocable cause. This case highlights the occurrence of Tdp secondary to conduction disturbance caused by aortic valve surgery.
Fournial JF, Brodaty D., Chomette G., et al. Conduction disorders after aortic valve replacement. Apropos of 200 cases. Arch Mal Coeur Vaiss. 1979;72:4-11.
3.
Habicht JM, Scherr P., Zerkowski HR, et al. Late conduction defects following aortic valve replacement. J Heart Valve Dis. 2000;9:629-632.
4.
Conti VR, Ware DICardiac arrhythmias in cardiothoracic surgery. Chest Surg Clin N Am. 2002;12:439-460.
5.
Acar J., Brodaty D., Fournial JF, et al. Conduction abnormalities after single heart valve replacement . Ann Med Interne (Paris). 1979;130:197-203.
6.
Boughaleb D. , Mansourati J., Genet L., et al. Permanent cardiac stimulation after aortic valve replacement: incidence, predictive factors and long-term prognosis . Arch Mal Coeur Vaiss. 1994;87:925-930.
7.
Limongelli G. , Ducceschi V., D'Andrea A., et al. Risk factors for pacemaker implantation following aortic valve replacement: a single centre experience. Heart. 2003;89:901-904.
8.
Konishi Y., Matsuda K., Nishiwaki N., et al. Ventricular arrhythmias late after aortic and/or mitral valve replacement. Jpn Circ J. 1985;49:576-583.
