• L Schaffranietz, A Grothe, and D Olthoff.
• Klinik und Poliklinik für Anästhesiologie und Intensivtherapie, Universität Leipzig.
• Anaesthesist. 2000 Apr 1;49(4):269-74.

ObjectivesThis 1998 survey was carried out on the use of the sitting position for neurosurgical procedures in the posterior fossa and operations of the craniospinal and cervical spine region by the dorsal approach. In addition, anesthetic management of the sitting position and the compliance with recommendations of the Neuroanesthesia Study Group of the German Society of Anesthesiology and Intensive Care Medicine (DGAI) published in 1995 were investigated and compared to results of a 1995 survey.MethodsA questionnaire was sent to 152 departments of anesthesiology in Germany providing anesthesia for neurosurgical procedures. 85 institutions (56%) responded to the survey, data from 78 hospitals were enrolled into the study. The sitting position was preferred for posterior fossa surgery by 45% of the neurosurgeons, for craniospinal operations by 35% and for cervical spine surgery by the dorsal approach by 39%. To 97% of the institutions the recommendations of the Neuroanesthesia Study Group of the DGAI were well known, 19% modified their anesthetic approach due to these recommendations. Recommendations of the Study Group on neuro-monitoring, in particular on the use of ultrasound (precordially or transoesophageally) for the detection of venous air embolism were followed by all institutions. 45% of the participants of the study preoperatively undertook diagnostic measures to preclude a probe-patent foramen ovale which predisposes the patient to paradoxical air embolism.ConclusionsThe survey demonstrates that the use of the sitting position in German neurosurgery is still high when compared to other Western countries, but a tendency for decline over last 3 years can be observed from our data. In addition, our data appears to indicate a positive effect of the Study Group's recommendations on anesthetic management of the sitting position in neurosurgery.

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