Objective The development of venothromboembolisms (VTEs), including deep vein thrombosis (DVT) and pulmonary emboli (PE), is common in brain tumor patients. Their development can be catastrophic. Studies evaluating pre-operative clinical factors that predispose patients to the development of VTE are few and limited. An understanding may help risk stratify patients and guide subsequent therapy aimed at reducing the risk of DVTs/PEs. Methods All adult patients who underwent surgery for an intracranial tumor at an academic tertiary care institution between 1998 and 2008 were retrospectively reviewed. Stepwise multivariate logistical regression analysis was used to identify pre-operative factors associated with the development of peri-operative (within 30 days of surgery) DVTs/PEs among patients who underwent surgery of their intracranial tumor. Results Of the 4293 patients in this study, 126 (3%) patients developed DVT and/or PE in the peri-operative period. The pre-operative factors independently associated with the development of DVTs/PEs were: poorer Karnofsky performance scale (KPS) [odds ratio (OR), 1.040; 95% confidence interval (CI), 1.026–1.052; P<0.0001], high grade glioma (OR, 1.702; 95% CI, 1.176–2.465; P=0.005), older age (OR, 1.033; 95% CI, 1.020–1.046; P<0.0001), hypertension (OR, 1.785; 95% CI, 1.180–2.699; P=0.006), and motor deficit (OR, 1.854; 95% CI, 1.244–2.763; P=0.002). Eighty six per cent of the patients with DVTs/PEs were treated with either unfractionated or low molecular weight heparin, and 4% of these patients developed intracranial hemorrhage. Discussion The present study found that poorer functional status, older age, pre-operative motor deficit, high grade glioma, and hypertension each independently increased the risk of developing peri-operative DVTs/PEs. These findings may provide patients and physicians with prognostic information that may guide therapies aimed at minimizing the development of peri-operative DVTs/PEs.

The brain's high concentrations of cholesterol make it especially vulnerable to the cholesterol biosynthetic defect that characterizes Smith-Lemli-Opitz syndrome (SLOS). An attempt to characterize the cognitive and behavioral phenotype of SLOS has identified increased rates of intellectual disability, language and motor developmental delay, repeated self-injury behaviors, sensory hyperreactivity, hyperactivity, affect dysregulation, and sleep disturbances. Some research has suggested that carriers of the gene mutation that results in SLOS display increased risk of suicidal behavior. Cholesterol dysregulation impairs neuroplasticity, which may be a mechanism underlying some of the mentioned abnormalities. Discrete positive effects have been reported with the use of cholesterol supplementation in the treatment of SLOS. Research has been limited by the small number of subjects available, and a limited understanding of lipid metabolism in the brain. Hopefully future research will help clarify the role that cholesterol plays in cognitive and behavioral abnormalities like the ones associated with SLOS. This would accelerate the development of treatments for SLOS, and perhaps also further understanding of non-syndromic psychiatric disorders such as autism and attention deficit hyperactivity disorder.

Objectives: Parent management training is an effective treatment for disruptive behavior disorders but it is often underutilized in clinical settings. Access to care is limited due to logistical barriers as well as limited service availability. This study examines in an open trial the acceptability, feasibility, and clinical effects of a digital parent management training intervention that includes videoconference coaching, called ''Tantrum Tool.'' Methods: Fifteen children, ages 3-9 years, participated in an open trial of an 8-week intervention. The primary symptom measure was the Disruptive Behavior Rating Scale (DBRS), and the secondary outcome measure was the Affective Reactivity Index (ARI) completed by the primary caregiver before and after treatment. Results: Treatment retention was high (80%), and parents reported a high level of satisfaction with the program. There was a significant reduction in the mean DBRS score from 13.5 -5.5 at baseline to 7.3 -3.4 at endpoint, p < 0.001. There was also a significant reduction in the mean ARI irritability score from 7.2 -2.6 at baseline to 3.75 -2.1 at endpoint, p < 0.01.Conclusions: This open pilot study supports the feasibility and acceptability of a digital parent training program for young children with disruptive behavior. Findings provide preliminary support for a clinically meaningful reduction of both disruptive behavior and irritability. Using the Tantrum Tool to deliver online treatment for children could increase access to first-line treatments for disruptive behavior and irritability in young children. ClinicalTrials.gov: NCT03697837.

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