[Clinical characteristics and efficiency of interventional therapy for coronary artery involvement in Takayasu's arteritis].

OBJECTIVE

To explore the clinical characteristics and efficacies of interventional therapy for coronary artery involvement in Takayasu's arteritis (TA).

METHODS

A total of 98 consecutive hospitalized TA patients with more than 50% diameter reduction of coronary artery by angiography were retrospectively analyzed from 2000 to 2013 at Peking Union Medical College Hospital.

RESULTS

Six cases (6/98, 6.1%) had coronary artery involvement of TA. All were females with an age range of 15-51 (32 ± 16) years. The manifestations included typical angina pectoris with a depression of ST segment on electrocardiogram. Among them, myocardial enzyme elevated in 5 cases and fulfilled the diagnosis of non-ST elevated myocardial infarction.Four cases had peripheral arterial involvement while another 2 cases had only coronary involvement. Coronary angiography was useful for definitive diagnosis. Coronary ostia was the most frequently involved.Five patients received successful coronary revascularization with drug-eluting stent and the symptom of angina pectoris improved.However, 1 patient developed restenosis in stent 3 months after percutaneous coronary intervention (PCI).

CONCLUSIONS

Coronary artery involvement in TA is not rare, especially ostia. The patients usually present with non-ST elevated myocardial infarction. PCI with drug-eluting stent may improve the symptoms, but the long-term effect should be investigated further.