The early effect of the Roux-en-Y gastric bypass on hormones involved in body weight regulation and glucose metabolism.

Objective: To evaluate the early effect of Roux-en-Y (RYGB) gastric bypass on hormones involved in body weight regulation and glucose metabolism. SIGNIFICANT BACKGROUND DATA: The RYGB is an effective bariatric procedure for which the mechanism of action has not been elucidated yet. Reports of hormonal changes after RYGB suggest a possible endocrine effect of the operation; however, it is unknown whether these changes are the cause or rather the effect of surgically induced weight loss.

Targeted parathyroidectomy in the era of intraoperative parathormone monitoring.

A combination of preoperative localization and intraoperative parathormone (PTH) monitoring permits targeted parathyroidectomy. Multiple approaches have been developed, ranging from unilateral neck exploration (UE) to radio-guided parathyroidectomy (RP) to endoscopic parathyroidectomy (EP). The purpose of this study was to evaluate the efficacy of these approaches in the management of primary hyperparathyroidism.