Post-Saline Infusion Plasma Aldosterone Concentrations are Well Correlated with the Lateralized Ratio of Adrenal Venous Sampling in Patients of Primary Aldosteronism

Objective: Adrenal venous sampling (AVS) is the most reliable test to distinguish between unilateral and bilateral primary aldosteronism (PA). However, AVS is invasive, risky, and expensive, and alternative diagnostic methods are desirable. This study aimed to investigate the diagnostic power of saline infusion test (SIT) to distinguish between unilateral and bilateral PA.