Performance of glycogen phosphorylase isoenzyme BB is weak in the detection of patients with non-ST-elevation acute coronary syndrome

Clin Biochem. 2011 Nov;44(16):1343-5. doi: 10.1016/j.clinbiochem.2011.07.008. Epub 2011 Jul 28.

Abstract

Objective: To examine the diagnostic performance of glycogen-phosphorylase-isoenzyme-BB (GPBB) combined with cardiac troponin I (cTnI) in acute coronary syndrome (ACS).

Design and methods: Sixty patients with chest pain were investigated; GPBB and cTnI were measured.

Results: ACS was confirmed in 31 patients; cTnI was >0.07 μg/L in 15 patients and GPBB was >10 μg/L in 6 patients. Areas under ROC curves were similar: 0.854 (cTnI+GPBB) vs. 0.843 (cTnI), p=0.728.

Conclusion: Combination of GPBB with cTnI does not improve the detection of ACS.

MeSH terms

  • Acute Coronary Syndrome / blood*
  • Acute Coronary Syndrome / diagnosis
  • Acute Coronary Syndrome / enzymology*
  • Biomarkers / blood
  • Chest Pain / blood
  • Chest Pain / diagnosis
  • Female
  • Glycogen Phosphorylase / blood*
  • Humans
  • Male
  • Middle Aged
  • Troponin I / blood*

Substances

  • Biomarkers
  • Troponin I
  • Glycogen Phosphorylase
  • glycogen phosphorylase BB, human