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Number of Side Effects
Chest wall rigidity was evaluated by improper ventilation and an increase in peak inspiratory pressure over 20 mmHg during mask ventilation. Sedationindicates a 4 on the Ramsay sedation scale. Group N: normal saline, Group R: pretreatment with 2 ng/ml of remifentanil, Group Q: pretreatment with 4 ng/ml of remifentanil.
