Identifying the Specific Subtype of Intracerebral Hemorrhage that is Indicated for Minimally Invasive Craniopuncture
NEUROCRITICAL CARE
Authors: Jia, Wanbing; Zhao, Biao; Du, Jinghua; Wu, Guofeng; Wang, Tingzhong
Abstract
Background Surgeries for intracerebral hemorrhage (ICH) remain controversial. Our previous study found that postoperative cerebrospinal fluid (CSF) outflow was associated with high hematoma evacuation efficiency in ICH cases with intraventricular involvement (ICHV) treated with minimally invasive craniopuncture (MIC). This study was designed to identify factors that predict postoperative CSF outflow and the specific subtype of ICHV that may benefit from MIC. Methods A total of 189 MIC needles applied to 125 ICHV patients were retrospectively analyzed. Univariate and multivariate analyses were used to identify independent predictive factors of postoperative CSF outflow. Results A density of the whole hematoma of <= 59 HU [odds ratio (OR) = 8.572, 95% confidence interval (CI) 3.235-22.714,P < 0.001, standardization regression coefficientsB ' = 0.576] and a distance between the needle tip and the ventricular tear (tip-tear distance) of 21.79-34.15 mm (OR = 25.566, 95% CI 8.707-75.074,P < 0.001,B ' = 0.883) were identified as independent predictive factors of postoperative CSF outflow. The density of the hematoma within 34.15 mm of the tear (clot 3.4) showed no statistical difference from that of the whole hematoma (P = 0.571). A density of clot 3.4 <= 60 HU was also a predictive factor of postoperative CSF outflow (area under curve: 0.771). Conclusions ICHV patients who meet the following conditions may benefit from MIC: (1) The MIC needle tip can be placed in the hematoma 21.79-34.15 mm from the ventricular tear; (2) the density of the whole hematoma is low (<= 59 HU); and (3) the density of clot 3.4 is also low (<= 60 HU). Future perspective studies should be conducted on this specific patient subtype.
Complete genome sequence and analysis of ictalurid herpesvirus 2
ARCHIVES OF VIROLOGY
Authors: Borzak, Rka; Haluk, Tibor; Bartha, Daniel; Doszpoly, Andor
Abstract
Ictalurid herpesvirus 2 (IcHV-2) has been causing substantial losses in the black bullhead aquaculture industry since the 1990s. Using next-generation sequencing, the genome of IcHV-2 was completely sequenced and analysed in this study. The complete genome was found to be 142,925 bp in size, containing 77 predicted protein-coding regions, including 12 ORFs that appear to have a homologue in every alloherpesvirus genome sequenced to date. The genome organization of the IcHV-2 shows high similarity to that of IcHV-1, the founding member of the genus Ictalurivirus within the family Alloherpesviridae. A unique sequence region of 101 kbp is flanked by terminal direct repeats of 20 kbp. Thirteen of the 77 putative genes do not show homology to any known genes with sequences in public databases; six of them are found in the repeat regions. Analysis of the whole genome confirms the previously established taxonomic position of IcHV-2.