Stent implantation in variant angina refractory to medical treatment.
BACKGROUND
Vasospastic angina usually responds well to medical treatment.


OBJECTIVE
The present study describes our experience in patients who received a coronary stent because of recurrent variant angina refractory to medical treatment and evaluates stent implantation as an alternative treatment.


METHODS
Between March 1998 and February 2005, recurrent variant angina was diagnosed in 22 patients admitted to our coronary care unit. Of these, five patients (22.7%), were refractory to pharmacologic treatment. Coronary angiography and coronary stents were indicated. Clinical follow-up was 29 +/- 6 months.


RESULTS
Stenting was performed during diagnostic coronary angiography in two patients. In the other three patients, the stent was implanted 24-48 h later. We observed coronary spasm recurrences proximal or distal to the stent in four patients-two during the stent implantation procedure and the other two in the coronary care unit within 48 h post angioplasty. Three patients where treated with additional stenting and the fourth patient improved with pharmacologic treatment. During follow-up three patients remained asymptomatic. The fourth patient had diffuse in-stent restenosis in the third month, and the fifth patient showed a de novo lesion in the treated segment 2 years later.


CONCLUSIONS
Stent implantation in patients with recurrent variant angina refractory to medical treatment may be an alternative treatment in carefully selected, clinically unstable patients. Spasm recurrences may occur in other segments of the treated artery, probably due to the diffuse nature of the disease. Immediate and continued surveillance is recommended because of the risk of adverse clinical events.
Martí
Vicens
V
Department of Cardiology, Hospital de la Santa Creu i Sant Pau. Barcelona, Spain. vmc18461b@hotmail.com
Ligero
Carmen
C
García
Joan
J
Kastanis
Panagiotis
P
Guindo
Josep
J
Domínguez de Rozas
José M
JM
D000368:Aged; D000788:Angina Pectoris, Variant / Q000188:drug therapy* / Q000601:surgery*; D015906:Angioplasty, Balloon, Coronary; D017023:Coronary Angiography; D003329:Coronary Vasospasm / Q000517:prevention & control / Q000601:surgery*; D003331:Coronary Vessels / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D015607:Stents; D017211:Treatment Failure