Krystyna Sztefko

Urinary creatinine in very low gestational age neonates: importance for interpretation of creatinine-normalized urinary amino acids

OBJECTIVES: Urinary creatinine concentration is widely used to normalize urinary analytes. However, its reliability in preterm neonates remains uncertain. This study aimed to evaluate urinary creatinine concentrations in very low gestational age (VLGA) neonates and assess its imp...

Adrenal incidentalomas: 1 mg dexamethasone test result in the context of cardiometabolic risk

Mild autonomous cortisol secretion (MACS) is the most common hormonal abnormality in adrenal incidentalomas. The 1 mg dexamethasone suppression test (DST) with a cutoff of 1.8 µg/dL is used to exclude hypercortisolism, yet some “non-functioning” tumors may secrete cortisol at con...