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PURPOSE Postoperative cerebellar mutism syndrome (pCMS) is a complication that may occur after pediatric fossa posterior tumor surgery. Liu et al. developed an MRI-based prediction model to estimate pCMS risk preoperatively. The goal of this study was to validate the model of Liu et al. and if validation was not as sensitive in our group as previously described to develop an easy to use, reliable, and sensitive preoperative risk prediction model for pCMS. METHODS In this study, 121children with a fossa posterior tumor who underwent surgery at ErasmusMC/Sophia Children's Hospital, the Netherlands between 2004 and 2018 could be included. Twenty-six percent of them developed pCMS. Preoperative MRI were scored using the Liu et al. model. RESULTS The Liu et al. model reached an accuracy of 78%, a sensitivity of 58%, and a specificity of 84% in our cohort. In a new risk model some of the variables of Liu et al. were included as well as some of the recently described preoperative MRI characteristics in pCMS patients by Zhang et al. The new model reached an accuracy of 87%, a sensitivity of 97%, and a specificity of 84% in our patient group. CONCLUSION Because the Liu et al. model did not provide an as accurate risk prediction in our cohort as was expected, we created a new risk prediction model that reached high model accuracy in our cohort that could assist neurosurgeons in determining their surgical tactics and help prepare high risk patients and their parents for this severe complication.PURPOSE To assess the impact of N-methylnaltrexone, a peripherally acting mu-opioid receptor antagonist, on the post-operative recovery of patients undergoing robotic-assisted radical cystectomy for bladder cancer. METHODS We retrospectively reviewed patients undergoing robotic-assisted radical cystectomy by a single surgeon (KC) prior to (control group) and after (treatment group) the routine use of N-methylnaltrexone. Kaplan-Meier curves and the log-rank test were used to quantify time to flatus, bowel movement, and discharge. Daily mean opioid use, daily pain assessment rating, and episodes of severe pain (7-10/10) were compared. Gastrointestinal-related complications, including ileus, emesis, and/or need for post-op nasogastric tube placement, and 30-day readmissions were also compared between groups. Charge capture data were compared between groups to analyze cost impact. RESULTS 29 patients each in the control and treatment group met inclusion criteria. Patients receiving N-methylnaltrexone had reduced length of stay compared with no N-methylnaltrexone (median 4 vs. 7 days, p  less then  0.01). Time to flatus and bowel movement, however, were similar. In a multivariable analysis controlling for possible confounders, however, the improvement in length of stay associated with N-methylnaltrexone use did not reach statistical significance (p = 0.11). Episodes of severe pain and composite gastrointestinal-related complications were reduced in the N-methylnaltrexone group (44.8% vs. 10.3%, p  less then  0.01). The reduction in length of stay was associated with approximately $10,500 in cost savings per patient. this website CONCLUSIONS In this study, N-methylnaltrexone was associated with reduced length of stay, fewer episodes of severe pain, and reduced costs. These results provide the impetus for further study.PURPOSE The aim of this study was to analyse the influence of age on the treatment outcome and toxicity in patients with T1HG non-muscle invasive bladder cancers treated with BCG immunotherapy. METHODS Data from 637 patients with primary T1HG bladder cancer who were treated between 1986 and 2016 in two academic centres were retrospectively reviewed. Median follow-up was 57 months. Patients were divided into two groups younger ( 0.05) CONCLUSIONS It was shown that increasing age was not associated with BCG immunotherapy oncological outcomes, or with BCG toxicity in T1HG non-muscle invasive bladder cancer.PURPOSE Sigmoid volvulus is one of the leading causes of colonic obstruction. The aims of this study were to review the treatment characteristics and clinical outcomes of patients diagnosed with sigmoid volvulus over 10 years at five university-affiliated hospitals in Korea, and to identify possible risk factors for its recurrence. METHODS Retrospective review was performed for medical records of patients who were diagnosed with sigmoid volvulus and managed surgically or conservatively at the five Hallym University-affiliated hospitals between January 2005 and July 2018. RESULTS A total of 69 patients were diagnosed, of whom 11 patients underwent emergency surgery and 58 patients were conservatively managed. Non-operative management was successful in 53 of 58 patients (91.4%) at initial admission. Of the non-operative managed patients, six patients required emergency surgery due to unsuccessful decompression or recurrence whereas 23 patients underwent regular surgery for definitive treatment. And overall recurrence rate and mortality rate were 25.8% (15/58) and 1.7% (1/58), respectively. A total of 40 patients underwent surgery; 23 underwent regular surgery and 17 underwent emergency surgery. Restoration of bowel continuity was more frequently performed in the regular surgery group than in the emergency surgery group (87.0% vs 52.9%, P = 0.03). In multivariable analysis, only non-operative management at the initial admission (P = 0.029) was independently associated with recurrence. CONCLUSION Although non-operative treatment can be initially attempted, surgery is required for preventing recurrence. Regular surgery should be considered to restore continuity of the bowel.PURPOSE Recent studies have determined that ambient humidity plays a more important role in aerobic performance than dry-bulb temperature does in warm environments; however, no studies have kept humidity constant and independently manipulated temperature. Therefore, the purpose of this study was to determine the contribution of dry-bulb temperature, when vapor pressure was matched, on the thermoregulatory, perceptual and performance responses to a 30-min cycling work trial. METHODS Fourteen trained male cyclists (age 32 ± 12 year; height 178 ± 6 cm; mass 76 ± 9 kg; [Formula see text] 59 ± 9 mL kg-1 min-1; body surface area 1.93 ± 0.12 m2; peak power output 393 ± 53 W) volunteered, and underwent 1 exercise bout in moderate heat (MOD 34.9 ± 0.2 °C, 50.1 ± 1.1% relative humidity) and 1 in mild heat (MILD 29.2 ± 0.2 °C, 69.4 ± 0.9% relative humidity) matched for vapor pressure (2.8 ± 0.1 kPa), with trials counterbalanced. RESULTS Despite a higher weighted mean skin temperature during MOD (36.3 ± 0.5 vs. 34.5 ± 0.