Cerebral blood flow changes in maintenance hemodialysis patients with restless legs syndrome and their clinical significance:a cross-sectional case-control study.

OBJECTIVE: Restless legs syndrome (RLS) stands as a prevalent neurological complication within maintenance hemodialysis (MHD) patients. However, the alterations in cerebral blood flow (CBF) among MHD-RLS patients remain uncharted. Through the utilization of the arterial spin labeling (ASL) technique, we evaluated the fluctuations in CBF within distinct brain regions and analyzed the risk factors for the development of RLS in MHD patients in the context of the clinic. METHODS: Thirty-one MHD patients with concomitant RLS (MHD-RLS group) and thirty-one non-RLS patients matched based on age, gender, as well as cognitive function (MHD-nRLS group) were included. Through image preprocessing and data analysis, the changes in CBF values in distinct brain regions were obtained, and the CBF values of brain regions with substantial differences between the two groups were correlated with the RLS scores. Furthermore, the differences in baseline data were compared, and through the utilization of multifactorial logistic regression, the independent risk factors for the development of RLS were examined. RESULTS: Compared with the MHD-nRLS group, the MHD-RLS group had increased CBF in the right superior temporal gyrus, reduced CBF in the right hippocampus, left middle frontal gyrus, inferior frontal gyrus of right triangle, middle frontal gyrus of left orbit, left precentral gyrus, and left precuneus. Only left precentral gyrus CBF were negatively correlated with RLS scores after correction for dialysis duration(r = -0.436, P = 0.016). Accordingly, multifactorial regression analysis by stepwise method yielded that the left precentral gyrus CBF values(OR: 0.968, 95%CI: 0.944-0.993, P = 0.012) remained an independent risk factor for RLS in MHD patients. In addition, the results showed that hemodialysis duration (OR: 1.055, 95%CI: 1.014-1.098, P = 0.008) and serum iron levels (OR: 0.685, 95%CI: 0.551-0.852, P = 0.001) were also risk factors for the development of RLS. CONCLUSION: Patients afflicted with MHD-RLS exhibit alterations in CBF across several brain regions. Notably, the left precentral gyrus might serve as a pivotal region influencing the onset of RLS among MHD patients. Furthermore, extended hemodialysis duration and a relative insufficiency in serum iron levels independently contribute as risk factors for RLS development within the MHD patient population.

Sorafenib combined with transarterial chemoembolization in patients with hepatocellular carcinoma: a meta-analysis and systematic review.

PURPOSE: Combination therapy of sorafenib and transarterial chemoembolization (TACE) has shown benefits in treating advanced hepatocellular carcinoma (HCC). This study evaluated the efficacy and safety of TACE + sorafenib. METHODS: MEDLINE, the Cochrane Library, EMBASE, and the ISI Web of Knowledge were searched (until 31 December 2013) for studies comparing TACE and TACE + sorafenib in treating patients with advanced HCC. Sensitivity and quality assessments were performed. RESULTS: Five comparative studies (2 were randomized control trials) that included 899 patients were used in the meta-analysis. Patients treated with TACE + sorafenib had better prognoses in terms of time to progression (TTP) compared to those with TACE + placebo or TACE alone; hazard ratios (HRs) ranged from 0.40 to 0.87, with the combined HR 0.61 (95 % CI 0.39-0.95, p = 0.031). However, the combined HR for overall survival (OS) did not differ significantly between patients treated with TACE + sorafenib and those with TACE + placebo or TACE alone (combined HR = 0.79, 95 % CI = 0.54-1.16, p = 0.235). Sensitivity analysis indicated the findings for TTP may be overly influenced by at least one of the studies. CONCLUSIONS: In summary, our meta-analysis found that TACE + sorafenib can improve TTP. We did not find the combined therapy improved OS. Additional randomized controlled studies are necessary to further investigate the clinical benefit of TACE + sorafenib in treating advanced HCC.