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Research Article

Failure to monitor ticlopidine: the case for clopidogrel

, , , , &
Pages 29-33 | Published online: 10 Jul 2009
 

Abstract

AIM: Ticlopidine remains unlicensed for use in coronary artery stenting. Haematological monitoring at two-weekly intervals of all patients taking ticlopidine is recommended because of the risk of neutropaenia. The authors assessed their ability to monitor a two-week course of ticlopidine given to patients undergoing coronary stenting procedures. METHODS AND RESULTS: One hundred and forty-one unselected consecutive patients undergoing coronary stenting procedures were prescribed ticlopidine 250 mg twice daily for two weeks, in addition to aspirin. Prior to discharge home they and their GPs were given written information outlining the side-effects of ticlopidine and the monitoring procedures required. One hundred and thirty-three patients (94%) completed the full two-week course of ticlopidine; three (2.4%) developed significant neutropaenia (neutrophil count <0.5 X 109/mm3). Patient compliance with full blood count monitoring was 85% at two weeks and 80% at four weeks. Two patients (1.4%) suffered subacute stent thrombosis. At six months, there were no deaths, one (0.7%) myocardial infarction and nine patients (6%) requiring target vessel revascularization. CONCLUSION: A two-week course of ticlopidine is well tolerated and does not appear to be associated with an increase in adverse cardiac events. However, even with a dedicated monitoring team, adequate haematological follow-up was achieved in only 80% of patients. The need for a licensed antiplatelet agent which has a lower side-effect profile and does not require haematological monitoring is obvious. (Int J Cardiovasc Intervent 2000; 3:29–33)

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