CASE OF THE MONTH

2006

Mar






Clinical History

A 48 year old lady with chronic rheumatic heart disease (mainly mitral stenosis) and in atrial fibrillation. She had 2 episodes of pain and numbness in the calf and feet. The first episode was after stopping warfarin for a few days for dental extraction. The symptoms improved later but did not completely subside.

Diagnosis

Arterial Thrombo-embolism

Comment

The patient has rheumatic mitral stenosis. This is commonly associated with enlarged L atrium which can predispose to L atrial clot. The patient was put on warfarin for this reason. With L heart thrombus, there is chance of systemic thrombo-embolism.

CT angiogram shows bilateral blocked popliteal arteries while the common femoral and superficial femoral arteries are normal. Collateral formation at level of knee joint (from genicular arteries) are re-constituting the main calf arteries. This suggests chronic and probably recurrent episodes of embolism with no critical acute ischaemia.

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