Observational studyNeurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology2021
Serum B cell lymphoma-2 concentrations and mortality of patients with spontaneous intracerebral hemorrhage.
Observational study in Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology, 2021. 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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Abstract
objectiveThere is scarce data on B cell lymphoma 2 (Bcl2), a member of the Bcl-2 family of antiapoptotic molecules of the intrinsic apoptosis pathway, in patients with spontaneous intracerebral hemorrhage (SIH). In one study, higher serum Bcl2 levels were found in patients with SIH than in healthy subjects. Thus, the objective of our study was to compare serum Bcl2 levels in surviving and non-surviving SIH patients.
methodsPatients with severe supratentorial SIH (defined as Glasgow Coma Scale < 9) admitted from the Intensive Care Units of five Spanish hospitals were included in this observational and prospective study. Serum levels of Bcl2L were determined at the time of diagnosis. Thirty-day mortality was the end-point study.
resultsNon-surviving (n = 38) compared to surviving patients (n = 41) had higher intracerebral hemorrhage (ICH) score (p = 0.001), midline shift (p = 0.003), and serum Bcl2 levels (p < 0.001). In addition, non-surviving compared to surviving patients had lower early hematoma evacuation rate (p = 0.03). We found 77% area under curve in mortality prediction for serum Bcl2 levels (95% CI = 0.66-88%; p < 0.001). Patients showing serum Bcl2 levels > 16.5 ng/mL had higher risk of death according to analysis of Kaplan-Meier (HR = 5.2; 95% CI = 2.5-10.6; p < 0.001). An association, after control for ICH score, midline shift, and early hematoma evacuation, was found between serum Bcl2 levels and 30-day mortality (OR = 1.090; 95% CI = 1.030-1.154; p = 0.003) in the multiple logistic regression.
conclusionsAs far as we know, our study is the first one reporting higher serum Bcl2 levels in non-surviving than in surviving SIH patients and the association between serum Bcl2 levels and SIH mortality.
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