title: Effects of positive end-expiratory pressure on intracranial pressure in mechanically ventilated dogs under hyperbaric oxygenation.
abstract: Mechanical ventilation with positive end-expiratory pressure (PEEP) has been advocated as an essential life support for critical patients. However, its side effect, which is demonstrated by an elevation of intracranial pressure (ICP) under normobaric (NBO2) conditions, is potentially detrimental to patients. Hyperbaric oxygen (HBO2) therapy, on the other hand, is frequently applied for the same group of patients, and its efficacy is shown by maintaining a higher PaO2 and a reduced ICP. Our study investigated the effect of HBO2 and NBO2 on ICP with or without PEEP ventilation on healthy dogs by comparing cerebrospinal fluid pressure (CSFP) and concluded that the elevation of PEEP resulted in a significant increase of ICP (CSFP) under both conditions (p < 0.05). HBO2 leads to a lower ICP increase compared to the NBO2 group. Under the same level of PEEP, the joint use of PEEP and HBO2 is safe and highly practical in clinical medicine.
authors.forename: Qing
authors.initials: Q
authors.lastname: Sun
authors.forename: Di
authors.initials: D
authors.lastname: Wu
authors.forename: Tao
authors.initials: T
authors.lastname: Yu
authors.forename: Ying
authors.initials: Y
authors.lastname: Yang
authors.forename: Li
authors.initials: L
authors.lastname: Wei
authors.forename: Fuxiang
authors.initials: F
authors.lastname: Lv
authors.forename: Guangkai
authors.initials: G
authors.lastname: Gao
mesh_terms: D000818:Animals; D001794:Blood Pressure / Q000502:physiology; D015170:Cerebrospinal Fluid Pressure / Q000502:physiology; D004285:Dogs; D006931:Hyperbaric Oxygenation / Q000009:adverse effects / Q000379:methods*; D007427:Intracranial Pressure / Q000502:physiology*; D008297:Male; D010100:Oxygen; D010313:Partial Pressure; D011175:Positive-Pressure Respiration / Q000009:adverse effects / Q000379:methods*
chemical_list: D010100:Oxygen