High positive predictive value of PAPP-A for acute coronary syndrome diagnosis in heparin-naïve patients.

Pregnancy-associated plasma protein-A (PAPP-A) was studied as a marker of acute coronary syndrome (ACS). It has been shown that its levels are increased by heparin administration. Therefore, the aim of our study was to ascertain the diagnostic significance of PAPP-A in heparin-naïve patients and compare it with (TnI).