ArticleAdvances in experimental medicine and biology2022
Critical Closing Pressure of Cerebral Circulation at Concomitant Moderate-to-Severe Traumatic Brain Injury.
Article in Advances in experimental medicine and biology, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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7 authors at 3 institutions in 2 countries.
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Abstract
backgroundCritical closing pressure (CrCP) is the pressure below which local pial blood pressure is inadequate to prevent blood flow cessation. The state of cerebral CrCP in patients with concomitant moderate-to-severe traumatic brain injury (cTBI) after brain lesions surgery remains poorly understood.
aimThe aim of our study was to establish the dynamics of CrCP after intracranial surgery in traumatic brain injury (TBI) patients with polytrauma. MATERIAL AND
methodsResults of the treatment of 70 patients with moderate-to-severe сTBI were studied (Male: Female - 39:31, mean age -33.2 ± 12.2 years). Depending on intracranial surgery, patients were divided into 2 groups. All patients were subjected to transcranial Doppler of both middle cerebral arteries, and evaluation of mean arterial pressure (MAP). Based on the data obtained, CrCPs were calculated. Significance was preset to P < 0.05.
resultsMean CrCP values in each group were significantly higher than a reference range (р < 0.01). There was no significant difference in CrCP values between the left and right hemispheres in the group 1 (p = 0.789). In the group 2, mean CrCP values on the unoperated side remained significantly lower than on the operated side (p = 0.000011) even after intracranial surgery. In group 1, mean CrCP values were significantly lower than on the surgery side in the group 1 (Z = 3,4; р = 0.043).
conclusionCrCP values in concomitant moderate-to-severe TBI after removing brain lesions and without surgery were significantly higher than referral data. Even after removal of brain lesions volumes in patients with concomitant moderate-to-severe TBI, CrCP values on the surgery side remained markedly higher than on the side opposite to the removed lesion volumes.
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