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The purpose of this review was to evaluate the effectiveness of Qigong in improving the quality of life and relieving fatigue, sleep disturbance, and cancer-related emotional disturbances (distress, depression, and anxiety) in women with breast cancer.<br /><br /> The PubMed, Cochrane Central Register of Controlled Trials, Web of Science, Sinomed, Wanfang, VIP, and China National Knowledge Infrastructure databases were searched from their inceptions to March 2020 for controlled clinical trials. Two reviewers selected relevant trials that assessed the benefit of Qigong for breast cancer patients independently. [https://www.selleckchem.com/products/pterostilbene.html Pterostilbene purchase] A methodological quality assessment was conducted according to the criteria of the 12 Cochrane Back Review Group for risk of bias independently. A meta-analysis was performed by Review Manager 5.3.<br /><br /> This review consisted of 17 trials, in which 1236 cases were enrolled. The quality of the included trials was generally low, as only five of them were rated high quality. The results showed significant effectiveness of Qigong on quality of life (n = 950, standardized mean difference (SMD), 0.65, 95 % confidence interval (CI) 0.23-1.08, P =  0.002). Depression (n = 540, SMD = -0.32, 95 % CI -0.59 to -0.04, P =  0.02) and anxiety (n = 439, SMD = -0.71, 95 % CI -1.32 to -0.10, P =  0.02) were also significantly relieved in the Qigong group. There was no significant benefit on fatigue (n = 401, SMD = -0.32, 95 % CI  0.71 to 0.07, P = 0.11) or sleep disturbance relief compared to that observed in the control group (n = 298, SMD = -0.11, 95 % CI  0.74 to 0.52, P = 0.73).<br /><br /> This review shows that Qigong is beneficial for improving quality of lifeand relieving depression and anxiety; thus, Qigong should be encouraged in women with breast cancer.<br /><br />This review shows that Qigong is beneficial for improving quality of lifeand relieving depression and anxiety; thus, Qigong should be encouraged in women with breast cancer.<br /><br /> Intracranial arachnoid cysts (ACs) are generally benign fluid-filled cysts with a prevalence of 0.5%-2.7%. They can be treated through craniotomy with cyst removal, endoscopic fenestration, or cystoperitoneal or ventriculoperitoneal shunting. However, the outcome of these treatments has not been completely satisfactory. Cystoventricular shunting was described as an alternative method for the treatment of intracranial ACs in children in 2003. In the present report, we have described the outcomes of cystoventricular shunting in adults with symptomatic intracranial ACs.<br /><br /> A total of 24 patients with symptomatic ACs underwent cystoventricular drainage from 2012 to 2019. The most common symptom preoperatively was headache, followed by dysphasia, motor weakness, memory loss, seizures, and balance disturbances. After radiological evaluation, a ventricular catheter was placed in the AC and another in one of the lateral ventricles and connected extracranially after subgaleal tunneling using a straight metal connector.<br /><br /> At 3-6 months of postoperative follow-up, 21% of patients were asymptomatic and 42% showed improvement in clinical symptoms. No patient had experienced impairment or progression of symptoms postoperatively. Three patients had required revision of the catheters and one patient had developed a postoperative superficial skin infection without signs of deeper infection.<br /><br /> Cystoventricular drainage seems to be an effective, reliable, and safe procedure to treat intracranial ACs when fenestration to the basal cisterns is not possible.<br /><br />Cystoventricular drainage seems to be an effective, reliable, and safe procedure to treat intracranial ACs when fenestration to the basal cisterns is not possible.<br /><br /> Given the significant cost and morbidity of patients undergoing lumbar fusion, accurate preoperative risk-stratification would be of great utility. We aim to develop a machine learning model for prediction of major complications and readmission after lumbar fusion. We also aim to identify the factors most important to performance of each tested model.<br /><br /> We identified 38,788 adult patients who underwent lumbar fusion at any California hospital between 2015 and 2017. The primary outcome was major perioperative complication or readmission within 30 days. We build logistic regression and advanced machine learning models XGBoost, AdaBoost, Gradient Boosting, and Random Forest. Discrimination and calibration were assessed using area under the receiver operating characteristic curve and Brier score, respectively.<br /><br /> There were 4470 major complications (11.5%). The XGBoost algorithm demonstrates the highest discrimination of the machine learning models, outperforming regression. The variables most important to XGBood from those for regression. The superior performance of XGBoost may be due to the ability of advanced machine learning methods to capture relationships between variables that regression is unable to detect. This tool may identify and address potentially modifiable risk factors, helping risk-stratify patients and decrease complication rates.<br /><br /> Type II odontoid fractures are the commonest C2 fractures. The management of dens fractures remains controversial with various radiological and fracture morphological factors affecting the approach and outcomes.<br /><br /> All cases of anterior odontoid screw fixation between 2010 and 2020 were retrospectively analyzed. Patients' clinical, radiological (type of fracture, orientation, displacement, and diastasis), operative (single vs. double screw) and follow-up records were documented. The postoperative imaging findings were classified into grades I (excellent), II (good), and III (poor) based on the anatomical alignment with the screw. Follow-up cervical computed tomography was reviewed for fracture union.<br /><br /> A total of 49 patients with a mean age of 37.3 ± 13.8 years were included in the study. The average time from injury to surgery was 23.1 ± 22.2 days. The bicortical screw purchase and superoposterior odontoid tip breach significantly affected the postoperative alignment (P= 0.035 each). Fracture union was noteion. With careful patient selection, meticulous surgical planning, and intraoperative image-guided screw insertion, good fracture union outcomes can be obtained. In the current study, we were able to achieve stable fracture union in 83.7% patients.