pubmed-article:1817621 | pubmed:abstractText | In a controlled prospective study, we studied 150 grade ASA I children undergoing outpatient dental extraction under inhalation anaesthesia with a T-piece system allocated to three equal groups: a control group (0 cm H2O CPAP), and two study groups receiving 2.5 or 5 cm H2O of CPAP via a nasal mask. We found that the incidence and severity of oxygen desaturation were reduced significantly in the 5-cm H2O CPAP group. | lld:pubmed |