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Intracranial pressure elevations in diffuse axonal injury: association with nonhemorrhagic MR lesions in central mesencephalic structures
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för neurovetenskap, Neurokirurgi.ORCID-id: 0000-0001-6173-8357
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för neurovetenskap, Neurokirurgi.ORCID-id: 0000-0002-9797-5626
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för neurovetenskap, Neurokirurgi.
Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för neurovetenskap, Neurokirurgi.
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2019 (engelsk)Inngår i: Journal of Neurosurgery, ISSN 0022-3085, E-ISSN 1933-0693, Vol. 131, nr 2, s. 604-611Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

OBJECTIVE Increased intracranial pressure (ICP) in patients with severe traumatic brain injury (TBI) with diffuse axonal injury (DAI) is not well defined. This study investigated the occurrence of increased ICP and whether clinical factors and lesion localization on MRI were associated with increased ICP in patients with DAI.

METHODS Fifty-two patients with severe TBI (median age 24 years, range 9-61 years), who had undergone ICP monitoring and had DAI on MRI, as determined using T2*-weighted gradient echo, susceptibility-weighted imaging, and diffusion-weighted imaging (DWI) sequences, were enrolled. The proportion of good monitoring time (GMT) with ICP > 20 mm Hg during the first 120 hours postinjury was calculated and associations with clinical and MRI-related factors were evaluated using linear regression.

RESULTS All patients had episodes of ICP > 20 mm Hg. The mean proportion of GMT with ICP > 20 mm Hg was 5%, and 27% of the patients (14/52) spent more than 5% of GMT with ICP > 20 mm Hg. The Glasgow Coma Scale motor score at admission (p = 0.04) and lesions on DWI sequences in the substantia nigra and mesencephalic tegmentum (SN-T, p = 0.001) were associated with the proportion of GMT with ICP > 20 mm Hg. In multivariable linear regression, lesions on DWI sequences in SN-T (8% of GMT with ICP > 20 mm Hg, 95% CI 3%-13%, p = 0.004) and young age (-0.2% of GMT with ICP > 20 mm Hg, 95% CI -0.07% to -0.3%, p = 0.002) were associated with increased ICP.

CONCLUSIONS Increased ICP occurs in approximately one-third of patients with severe TBI who have DAI. Age and lesions on DWI sequences in the central mesencephalon (i.e., SN-T) are associated with elevated ICP. These findings suggest that MR lesion localization may aid prediction of increased ICP in patients with DAI.

sted, utgiver, år, opplag, sider
2019. Vol. 131, nr 2, s. 604-611
Emneord [en]
ADC = apparent diffusion coefficient, CPP = cerebral perfusion pressure, DAI = diffuse axonal injury, DWI = diffusion-weighted imaging, EVD = external ventricular drain, GCS = Glasgow Coma Scale, GMT = good monitoring time, GOSE = Glasgow Outcome Scale–Extended, ICC = intraclass correlation coefficient, ICP = intracranial pressure, MAP = mean arterial blood pressure, MRI, NICU = neurointensive care unit, SN-T = substantia nigra and mesencephalic tegmentum, SWI = susceptibility-weighted imaging, T2*GRE = T2*-weighted gradient echo, TBI, TBI = traumatic brain injury, diffuse axonal injury, diffusion-weighted imaging, elevated ICP, intracranial pressure, trauma, traumatic brain injury
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Identifikatorer
URN: urn:nbn:se:uu:diva-362207DOI: 10.3171/2018.4.JNS18185ISI: 000478642100036PubMedID: 30215559OAI: oai:DiVA.org:uu-362207DiVA, id: diva2:1252620
Merknad

Correction in: JOURNAL OF NEUROSURGERY, Volume: 131, Issue: 2, Pages: 637-638, DOI: 10.3171/2018.10.JNS18185a

Tilgjengelig fra: 2018-10-02 Laget: 2018-10-02 Sist oppdatert: 2019-09-26bibliografisk kontrollert

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