Overview Effect of Intraoperative Magnesium on Remifentanil-induced Postoperative Hyperalgesia After Thyroidectomy Status: Completed Trial end date: 2010-01-01 Target enrollment: Participant gender: Summary The purpose of this study is to study the effect of intraoperative magnesium on remifentanil-induced postoperative hyperalgesia after thyroidectomy Phase: Phase 4 Details Lead Sponsor: Yonsei UniversityTreatments: Remifentanil