There are studies claiming that<unk>  accounts for 40 percent to 50 percent procedure-related complications. Airway obstruction, apnea and hypotension are not uncommon during<unk>  and require the presence of health professionals who are suitably trained to detect and manage these problems. Aside from the suppression of respiration, risks also include unintended levels of<unk> , postoperative somnolence, aspiration, and adverse reactions to<unk>  medications. Complications could also include perforation, bleeding, and the stimulation of vasovagal reflexes. To avoid<unk>  risks, care providers conduct a thorough pre-sedation evaluation and this process includes pre-sedation history and physicals with emphasis on the determining characteristics that indicate potential risks to the patient and potential difficult airway management. This process can also reveal if the<unk>  period needs to be prolonged or additional therapeutic procedures are required.
Sedation
Decompensation
Snatiation
Somnolence
Confusion
Neurosis
Sedative
Sleep paralysis