Changes in Thyroid Replacement Therapy after Bariatric Surgery: Differences between Laparoscopic Roux-en-Y Gastric Bypass and Laparoscopic Sleeve Gastrectomy

Levothyroxine (LT4) requirements can presumably be modified differently after laparoscopic Roux-en-Y gastric bypass (LRYGB) and laparoscopic sleeve gastrectomy (LSG). The present study compared changes in LT4 dose in hypothyroid subjects undergoing LRYGB or LSG 2 years after the procedure. A 2-year follow-up observational study was conducted in a prospective cohort of obese patients who had undergone bariatric surgery and were receiving LT4....