Summary
Resistance to activated protein C is the most common hereditary cause for thrombosis
and significantly linked to factor V Leiden. In this study, primers were designed
to identify the factor V mutation by allele-specific PCR amplification. 126 patients
with thromboembolic events were analysed using this technique, PCR-RFLP and direct
sequencing. The concordance between these techniques was 100%. In 27 patients a heterozygous
factor VGln506 mutation was detected, whereas one patient with recurrent thromboembolism was homozygous
for the point mutation. Due to its time- and cost-saving features allele-specific
amplification should be considered for screening of factor VGln506.