[Ulstrasonic monitoring for early diagnosis of air embolism during neurosurgical procedures (author's transl)].


The sitting position of the patient offers many advantages to the neurosurgeon for operations at the posterior fossa, the upper cervical region, the Gasserian ganglion and the retroganglionic trigeminal root. Air embolism is however one of the greatest dangers during operations in this position. Air emboli occur more frequently than it is generally… (More)