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  • Title: [Transesophageal echocardiography and air embolism during posterior fossa neurosurgery. Intraoperative detection in the foramen ovale].
    Author: Lieutaud T, Bodonian C, Lak C, Salord F, Artru F.
    Journal: Ann Fr Anesth Reanim; 2001 Aug; 20(7):631-4. PubMed ID: 11530750.
    Abstract:
    Sitting position during neurosurgery is discussed because the risk of venous air embolism and paradoxical air embolism is increased. Preoperative transoesophageal echocardiography is proposed to screen patients with patent foramen ovale to avoid them for the sitting position. This work reported 2 patients in conflict with this screening. It is discussed the physiological principles governing the paradoxical air embolism and the actual recommended monitoring for this position.
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