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Case Reports

Cyanosis Produced By Superior Vena Caval Stenosis

^a Department of Cardiothoracic Surgery, Emory University, Atlanta, Georgia
^b Department of Cardiology, and Sibley Cardiology, Emory University, Atlanta, Georgia

Accepted for publication September 17, 2007.

^_* Address correspondence to Dr Kogon, Emory University, Children’s Healthcare of Atlanta, Egleston, 1405 Clifton Rd, Atlanta, GA 30322 (Email: brian_kogon{at}emoryhealthcare.org).

Superior vena cava syndrome is a rare complication of pacemaker implantation. Narrowing and occlusion of the superior vena cava is often asymptomatic due to the formation of decompressive collateral pathways to the right atrium. We present a case in which an anomalous venous pathway allowed decompression of the systemic venous return into the left atrium, resulting in arterial desaturation, cyanosis, and fatigue.