title: Air embolism during neurosurgery in the sitting position. Two case reports.
mesh_terms: D000328:Adult; D004618:Embolism, Air / Q000209:etiology* / Q000517:prevention & control / Q000601:surgery; D005260:Female; D005539:Foramen Magnum / Q000601:surgery; D006801:Humans; D008297:Male; D008579:Meningioma / Q000601:surgery; D008991:Monitoring, Physiologic; D009493:Neurosurgery / Q000009:adverse effects*; D011175:Positive-Pressure Respiration; D011187:Posture; D012119:Respiration; D012888:Skull Neoplasms / Q000601:surgery; D014690:Venous Pressure