Effectiveness and safety of extracorporeal shock wave treatment for low back pain：a systematic review and meta-analysis of RCTs

This meta-analysis was designed to assess the effectiveness and safety of extracorporeal shock wave therapy (ESWT) for patients with low back pain (LBP). Pubmed, Embase, Cochrane's library, PEDro (Physiotherapy Evidence Database), China National Knowledge Infrastructure (CNKI), and Wanfang Data were searched until December 2019 to identify studies assessing the effectiveness and safety of EPSW for LBP. The prime outcome is pain intensity measured by Visual Analog Scale (VAS) or numeric rating scale (NRS). Other outcomes included functional status, quality of life, psychological outcomes measured by Oswestry Disability Index (ODI), as well as the adverse events. Mean differences (MD) were calculated for continuous outcomes, while odd ratios (OR) were calculated for binary outcomes. Revman 5.3 software was used for statistical analysis. Five randomized controlled trials (RCTs) were finally included in this meta-analysis. The pooled mean difference in post-treatment pain scores was −2.37 (P ＜0.0001), indicating that post-treatment pain scores was significantly higher by 2.37 in control group than in ESWT group. At a mean follow-up time of 4–6 weeks, the pooled mean difference in ODI scores was −14.10 (P ＜0.00001), indicating that the pooled mean difference of post-treatment ODI scores was 14.10 higher in control group than in ESWT group. The use of ESWT is effective in alleviating pain and improving the general functional state for patients with LBP. However, more evidence was needed to verify its safety.     

微创治疗方法在输尿管上段结石中应用进展

输尿管上段结石为临床中常见泌尿系结石类型之一,如不能及时诊治,可引起重度积水、泌尿系感染,甚至脓毒血症,对患者肾功能、健康造成严重影响。随着微创治疗技术在泌尿系结石中应用,微创治疗方法能降低对患者造成治疗性创伤,降低相关并发症发生率,促进患者康复,了解临床中微创治疗输尿管上段结石方法,对临床中合理治疗输尿管上段结石有重要价值。     

A Priori Subcell Limiting Approach for the FR/CPR Method on Unstructured Meshes

A priori subcell limiting approach is developed for high-order flux reconstruction/correction procedure via reconstruction (FR/CPR) methods on two-dimensional unstructured quadrilateral meshes. Firstly, a modified indicator based on modal energy coefficients is proposed to detect troubled cells, where discontinuities exist. Then, troubled cells are decomposed into nonuniform subcells and each subcell has one solution point. A second-order finite difference shock-capturing scheme based on nonuniform nonlinear weighted (NNW) interpolation is constructed to perform the calculation on troubled cells while smooth cells are calculated by the CPR method. Numerical investigations show that the proposed subcell limiting strategy on unstructured quadrilateral meshes is robust in shock-capturing.     

Preparing IR for COVID-19: The Singapore Experience

This paper describes country-wide special measures undertaken for interventional radiology staff during the current coronavirus disease 2019 (COVID-19) pandemic. Although each interventional radiology service around the world faces unique challenges, the principles outlined in this article will be useful when designing or strengthening individual practices and integrating them within wider hospital and national measures. Moving beyond the current outbreak, these measures will be useful for any future infectious diseases which are likely to arise.     

单侧外固定治疗重度Pilon骨折的临床疗效探究

目的探讨单侧外固定治疗重度Pilon骨折的临床疗效。方法回顾性分析2017年6月-2018年12月南京中大医院江北院区骨科收治的重度Pilon骨折患者100例,男性54例,女性46例;年龄18~65岁,平均35.5岁;Ruedi-AllgowerⅡ型39例,Ⅲ型61例。按照不同固定方法分为常规固定组和单侧外固定组,各50例,比较两组患者住院时间、完全负重下地时间、骨折愈合时间,评价治疗前及治疗后3个月踝关节活动度、踝关节功能恢复情况、疼痛程度,并统计患者的治疗效果及并发症发生情况。结果单侧外固定组住院时间、完全负重下地时间、骨折愈合时间分别为(16.50±1.50)d、(132.56±10.25)d、(14.16±0.69)周,均短于常规固定组(19.25±2.35)d、(198.65±16.58)d、(17.58±1.50)周(t/P=6.975/0.001、23.970/0.001、14.650/0.001)。治疗后3个月,单侧外固定组踝关节Mazur评分为(85.67±6.59)分,显著高于常规固定组(62.78±3.45)分,VAS评分为(2.23±0.36)分,低于常规固定组(4.59±0.89)分(t/P=21.760/0.001、17.380/0.001);单侧外固定组患者踝关节活动度分别为(17.29±0.16)°、(28.36±1.23)°、(19.68±0.16)°、(16.89±2.12)°,均高于常规固定组(10.62±1.25)°、(21.57±2.58)°、(14.36±1.62)°、(14.25±0.57)°(t/P=37.430/0.001、16.800/0.001、23.110/0.001、8.503/0.001)。单侧外固定组治疗优良率为90.00%,显著高于常规固定组74.00%(χ^2/P=4.336/0.037)。单侧外固定组总并发症发生率为4.00%,显著低于常规固定组的18.00%(χ^2/P=5.005/0.025)。结论单侧外固定支架治疗重度Pilon骨折可有效减轻患者疼痛症状,提高患者踝关节活动度,恢复患者功能,治疗效果显著,安全性较高。     

经鼻导管高流量吸氧与经鼻气道正压通气在重症毛细支气管炎呼吸支持中的应用价值比较

目的：比较经鼻导管高流量吸氧（HFNC）与经鼻气道正压通气（nCPAP）在重症毛细支气管炎呼吸支持中的应用价值，为临床治疗方案的选择提供参考。方法：选取2016年12月至2018年12月我院儿科收治的重症毛细支气管炎患儿90例，采用随机数字表法分为观察组和对照组各45例。两组患儿入院后均给予常规综合治疗以保证呼吸道通畅，在此基础上观察组采用HFNC治疗，对照组采用nCPAP治疗，比较两组患儿治疗前和治疗24 h后呼吸频率、经皮血氧饱和度（TcSO2）、呼吸窘迫评分体系（CSS）评分、动脉血氧分压（PaO2）等呼吸相关指标及治疗前后临床症状体征改善情况。结果：两组患儿治疗24 h后呼吸频率、CSS评分均降低，且观察组降低程度更大，TcSO2、PaO2于治疗24 h后升高，观察组升高幅度较对照组明显；治疗后两组患儿咳嗽及肺部湿啰音、肺部炎症情况均改善，观察组症状体征消失时间早于对照组，差异均有统计学意义（P<0.05）。结论：重症毛细支气管炎患儿采用HFNC治疗可明显改善通气功能和临床症状，治疗效果优于nCPAP治疗，可扩大样本量进一步观察。