Tonsillotomy or tonsillectomy, with or without adenoidectomy, is one of the most frequently performed procedure in the pediatric population. Obstructive sleep apnea is one of the main indications for these procedures. Respiratory problems following surgery are the most feared surgical complications. The criteria for identifying patients at risk of complications and the level of care required during monitoring remain controversial. This article reviews the literature on risk factors for respiratory complications. Recommendations for postoperative monitoring are proposed.