• Acta neurochirurgica · Dec 2005

    Endothelin-1 in plasma, cisternal CSF and microdialysate following aneurysmal SAH.

    • S Kästner, M F Oertel, W Scharbrodt, M Krause, D-K Böker, and W Deinsberger.
    • Department of Neurosurgery, University Hospital Giessen, Giessen, Germany.
    • Acta Neurochir (Wien). 2005 Dec 1; 147 (12): 1271-9; discussion 1279.

    ObjectiveEndothelin-1 (ET-1) is postulated to play an important role in the development of cerebral vasospasm (CVS) following SAH. This study was conducted to investigate the time course of ET-release in three different sources: CSF, plasma and microdialysate.MethodsIn a prospective study ET-1-concentrations were measured in plasma, cisternal CSF and microdialysate in 20 patients with aneurysmal SAH for at least 8 days after hemorrhage.ResultsET-1 concentration in microdialysate was almost four times higher compared to CSF and plasma. (p<0.001) Only in CSF ET-1-release showed a significant increase over time with highest values on day 5 post ictus (p = 0.03). This was parallel to the increase of transcranial Doppler velocities. ET-1 in plasma and microdialysate did not change over time.ConclusionET-1 may have a different biological function in different biological tissues. Only ET-1 in CSF seemed to be associated with CVS.

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