Endocrine Abstracts

Adrenal vein sampling (AVS) is used to differentiate between unilateral and bilateral subtypes of primary aldosteronism (PA). However, AVS results may be misinterpreted due to a procedural artefact resulting in low aldosterone levels at the inferior vena cava (IVC), thus making an interpretation of aldosterone to renin ratios difficult. We investigated whether this artefact was due to patients’ being supine before and during AVS, given aldosterone varies with posture, and...