Monitored anesthesia care (MAC) has been described as a specific anesthesia service for diagnostic or therapeutic procedures performed under local anesthesia along with sedation and analgesia, titrated to a level preserving spontaneous breathing and airway reflexes. Radio-frequency ablation (RFA) is a kind of methods to remove benign thyroid nodules (BTNs) by inducing the irreversible injuries with the use of an ultrasound-guided RF electrode placed inside the nodules. A 37 years old, 157 cm, 81 kg woman underwent RFA of BTNs under MAC. We present with a case report where laryngospasm under MAC was resolved by the use of positive pressure ventilation without any complications.

• 주 완(광주기독병원 마취통증의학과) | Wan Ju (Department of Anesthesiology and Pain Medicine, Kwangju Christian Hospital, Gwangju, Korea)
• 박천희(광주기독병원 마취통증의학과) | Choen Hee Park (Department of Anesthesiology and Pain Medicine, Kwangju Christian Hospital, Gwangju, Korea) Corresponding author
• 석은하(광주기독병원 마취통증의학과) | Eun Ha Suk (Department of Anesthesiology and Pain Medicine, Kwangju Christian Hospital, Gwangju, Korea)