Objective:To investigate the effect of hyperbaric oxygen therapy time for carbon monoxide poisoning.Methods:180patients with carbon monoxide poisoning were selected from March 2011 to February 2014.They were divided into 2 groups according to the actual treatment time,namely the receiving hyperbaric oxygen therapy group within 12 h after poisoning(group A)and the receiving hyperbaric oxygen therapy after 12 h after poisoning group(B group),90 cases in each group.They were given hyperbaric oxygen therapy wit...