PMID- 20471835 OWN - NLM STAT- MEDLINE DCOM- 20101124 LR - 20220318 IS - 1532-2653 (Electronic) IS - 0967-5868 (Print) IS - 0967-5868 (Linking) VI - 17 IP - 7 DP - 2010 Jul TI - Relationship between brain interstitial fluid tumor necrosis factor-alpha and cerebral vasospasm after aneurysmal subarachnoid hemorrhage. PG - 853-6 LID - 10.1016/j.jocn.2009.11.041 [doi] AB - Tumor necrosis factor-alpha (TNF-alpha) has a crucial role in the onset of hemolysis-induced vascular injury and cerebral vasoconstriction. We hypothesized that TNF-alpha measured from brain interstitial fluid would correlate with the severity of vasospasm following aneurysmal subarachnoid hemorrhage (aSAH). From a consecutive series of 10 aSAH patients who underwent cerebral microdialysis (MD) and evaluation of vasospasm by CT angiogram (CTA) or digital subtraction angiography (DSA), TNF-alpha levels from MD were measured at 8-hour intervals from aSAH days 4-6 using enzyme-linked immunosorbent assay. An attending neuroradiologist blinded to the study independently evaluated each CTA and DSA and assigned a vasospasm index (VI). Five patients had a VI<2 and 5 patients had a VI>2, where the median VI was 2 (range 0-13). The median log TNF-alpha area under the curve (AUC) was 1.64pg/mL *day (interquartile range 1.48-1.71) for the VI<2 group, and 2.11pg/mL *day (interquartile range 1.95-2.47) for the VI>2 group (p<0.01). Thus, in this small series of poor-grade aSAH patients, the AUC of TNF-alpha levels from aSAH days 4-6 correlates with the severity of radiographic vasospasm. Further analysis in a larger population is warranted based on our preliminary findings. FAU - Hanafy, Khalid A AU - Hanafy KA AD - Columbia University Medical Center, Division of Neurocritical Care, Columbia University College of Physicians and Surgeons, Milstein Hospital Room 8GS-331, New York, New York 10032, USA. kh2401@columbia.edu FAU - Stuart, R Morgan AU - Stuart RM FAU - Khandji, Alexander G AU - Khandji AG FAU - Connolly, E Sander AU - Connolly ES FAU - Badjatia, Neeraj AU - Badjatia N FAU - Mayer, Stephan A AU - Mayer SA FAU - Schindler, Christian AU - Schindler C LA - eng GR - R01 AI058211/AI/NIAID NIH HHS/United States GR - R01 AI058211-05/AI/NIAID NIH HHS/United States GR - R21 ES016835/ES/NIEHS NIH HHS/United States GR - R21 ES016835-01/ES/NIEHS NIH HHS/United States PT - Comparative Study PT - Journal Article DEP - 20100514 PL - Scotland TA - J Clin Neurosci JT - Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia JID - 9433352 RN - 0 (Tumor Necrosis Factor-alpha) SB - IM MH - Adult MH - Aged MH - Brain/*blood supply/*metabolism/pathology MH - Extracellular Fluid/chemistry/*physiology MH - Female MH - Humans MH - Male MH - Microdialysis/methods MH - Middle Aged MH - Retrospective Studies MH - Subarachnoid Hemorrhage/diagnosis/etiology/*metabolism MH - Tumor Necrosis Factor-alpha/analysis/*physiology MH - Vasospasm, Intracranial/diagnosis/etiology/*metabolism PMC - PMC2878881 MID - NIHMS190997 EDAT- 2010/05/18 06:00 MHDA- 2010/12/14 06:00 PMCR- 2011/07/01 CRDT- 2010/05/18 06:00 PHST- 2009/11/04 00:00 [received] PHST- 2009/11/24 00:00 [accepted] PHST- 2010/05/18 06:00 [entrez] PHST- 2010/05/18 06:00 [pubmed] PHST- 2010/12/14 06:00 [medline] PHST- 2011/07/01 00:00 [pmc-release] AID - S0967-5868(10)00208-0 [pii] AID - 10.1016/j.jocn.2009.11.041 [doi] PST - ppublish SO - J Clin Neurosci. 2010 Jul;17(7):853-6. doi: 10.1016/j.jocn.2009.11.041. Epub 2010 May 14.