PROLONGED LUMINAL NARROWING OF INTERNAL MAMMARY ARTERY GRAFT AFTER PERCUTANEOUS TRANSLUMINAL ANGIOPLASTY - A CASE-REPORT

The authors describe a case with an internal mammary artery (IMA) graf t that demonstrated prolonged, but reversible, luminal narrowing persi sting > twenty-four hours following percutaneous transluminal angiopla sty. Luminal narrowing disappeared spontaneously, however, at the time of follow-up angiography one week after the angioplasty, Since hazine ss at the dilation site had been shown on preprocedural angiogram, sug gestive of intraluminal thrombus, this phenomenon may be attributed to either prolonged vasospasm or distal embolization of the IMA graft.