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Acute coronary syndrome

Prevalence
Clinical features
Differential diagnosis
Investigations
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Prognosis
Therapy

Angioplasty

Give abciximab a b

Why?

  • Abciximab reduces myocardial infarction and the need for urgent revascularisation compared with placebo, but increases the risk of major bleeding. b  
  • Abciximab reduces death, myocardial infarction and the need for urgent revascularisation compared with tirofiban, but causes more thrombocytopenia. a There is no clear difference in major bleeding between the two drugs. d  
  • Eptifibatide reduces death, myocardial infarction and the need for urgent revascularisation compared with placebo.  a The effect on major bleeding is unclear.  b  

Abciximab reduces myocardial infarction and urgent revascularisation but increases major bleeding

Patient Treatment Comparison Outcome CER OR
(95% CI)
NNT
(95% CI)
angioplasty  b   abciximab placebo myocardial infartion
at 30 days
8.5% 0.49
(0.40 to 0.59)
24
(20 to 30)
      urgent revascularisation
at 30 days
6.9% 0.42
(0.34 to 0.53)
29
(25 to 36)
      major bleeding
at 30 days
3.8% 1.53
(1.24 to 1.90)
-53
(-120 to -31)
  eptifibatide or tirofiban placebo urgent revasculariation
at 30 days
5.5% 0.76
(0.60 to 0.96)
79
(47 to 480)

Abciximab reduces death, MI and urgent revascularisation but increases thrombocytopenia compared with tirofiban

Patient Treatment Comparison Outcome CER RRR
(95% CI)
NNT
(95% CI)
angioplasty  b   tirofiban abciximab death, non-fatal MI, urgent revascularisation
at 30 days
6.0% -1.58%
(-3.00% to -0.153%)
-63
(-650 to -33)
      thrombocytopenia
at 30 days
2.4% 1.91%
(1.23% to 2.58%)
52
(39 to 81)

Eptifibatide reduces death, MI and urgent revascularisation 

Patient Treatment Comparison Outcome CER RRR
(95% CI)
NNT
(95% CI)
elective angioplasty with stenting a eptifibatide placebo death, non-fatal MI, urgent revascularisation
at 30 days
22% 21%
(6% to 33%)
22
(12 to 88)

 

Expiry date: June 2003
Levels of Evidence used in grading these guides

Authors   CM   Ball , N   Shenker
Reviewer   I K   Jang
CAT Writers   N   Shenker , CJ   Wotton , CM   Ball , RS   Phillips