We describe a case in which coronary angioscopy was complicated by inability to deflate the device's occlusion balloon. Rapid over-inflation to rupture the balloon resulted in massive dissection of the artery, pseudoaneurysm formation, and ultimately coronary bypass. While the cause of failure of balloon deflation remains obscure, deliberate over-inflation to cause rupture may be hazardous.
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Wolff et al. (1993) studied this question.
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