Stratification of the risk of thrombosis after intracoronary stenting for threatened or acute closure complicating coronary balloon angioplasty: a Cook registry study.
This study was carried out to stratify the risk of stent thrombosis by using three predictors: stent size, poststenting residual dissection, and residual filling defect. In the multicenter clinical trial, 1318 patients had successful deployment of Gianturco-Roubin coronary stent for threatened and acute closure. The 714 (54.2%) patients having none of these risk factors were designated a low-risk group; 484 (36.6%) had one factor and were designated an intermediate-risk group; 120 (9.1%) had two or all three factors and were designated a high-risk group. The incidence of stent thrombosis was 5.6%, 9.4%, and 16.7% in the low-, intermediate-, and high-risk groups; the difference among the three groups was highly significant (p < 0.0001). With these three predictors, the risk of stent thrombosis can be stratified. Avoiding the use of small stents (< 3.0 mm) and achieving optimal angiographic results after stenting for acute or threatened closure are useful strategies in reducing stent thrombosis.
Liu
M W
MW
Department of Medicine, University of Alabama at Birmingham 35294, USA.
Voorhees
W D
WD
Agrawal
S
S
Dean
L S
LS
Roubin
G S
GS
D000208:Acute Disease; D000368:Aged; D000704:Analysis of Variance; D015906:Angioplasty, Balloon, Coronary / Q000009:adverse effects* / Q000379:methods / Q000706:statistics & numerical data; D016009:Chi-Square Distribution; D003327:Coronary Disease / Q000628:therapy*; D003328:Coronary Thrombosis / Q000453:epidemiology*; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D015994:Incidence; D008297:Male; D008875:Middle Aged; D011379:Prognosis; D012042:Registries / Q000706:statistics & numerical data; D012307:Risk Factors; D015607:Stents / Q000009:adverse effects* / Q000706:statistics & numerical data; D014481:United States / Q000453:epidemiology