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find Author "张乐" 10 results
  • Evaluation of predictive value of six thrombosis assessment scales for deep vein thrombosis in patients with gastrointestinal tumors

    ObjectiveTo compare the predictive value of six thrombotic risk assessment scales, including Autar, Wells, Padua, Caprini, Khorana, and COMPASS-CAT, for the deep venous thrombosis (DVT) of lower extremity in patients with gastrointestinal tumors. MethodsThe patients with gastrointestinal tumors who received surgical treatment in the General Surgery Department of Lanzhou University Second Hospital from March 2023 to October 2023 were collected. The risk of DVT on day 3 after surgery for the patient with gastrointestinal tumors was prospectively evaluated using the Autar, Wells, Padua, Caprini, Khorana, and COMPASS-CAT assessment scales. And the DVT was detected by ultrasound examination. The pionts of six thrombotic risk assessment scales were compared between the patient with DVT and without DVT based on the ultrasound examination results. The predictive value of the six thrombotic risk assessment scales for the lower extremity DVT in the patients with gastrointestinal tumors was evaluated by the area under receiver operating characteristic curve (AUC). ResultsA total of 108 patients who met the criteria, including 71 males and 37 females, were enrolled, age ranged from 18 to 85 years old, (58.3±11.2) years old. Fourty-two cases (38.9%) of DVT occurred. The age of patients with DVT was older than that of patients without DVT (P<0.05), but there were no statistical differences in the gender, body mass index, tumor location, comorbidities, and so on (P>0.05). The points of Autar, Padua, and Caprini in the patients with DVT were higher than those in the patients without DVT (P<0.05), while there were no statistical differences in the points of Wells, Khorana, and COMPASS-CAT between the two (P>0.05). The AUC for differentiating the occurrence of DVT in the patients with gastrointestinal tumors using the Autar, Wells, Padua, Caprini, Khorana, and COMPASS-CAT assessment scales were 0.907, 0.548, 0.636, 0.627, 0.589, and 0.535, respectively; The sensitivities were 97.6%, 14.3%, 52.4%, 83.3%, 47.6%, and 21.4%; The specificities were 2.4%, 85.7%, 47.6%, 16.7%, 52.4%, and 78.6%, respectively. ConclusionAccording to the abilities of Autar, Wells, Padua, Caprini, Khorana, and COMPASS-CAT to distinguish the occurrence of DVT in patients with gastrointestinal tumors after surgery, only the Autar evaluation scale is found to be more effective, while the other five evaluation scales are generally able to distinguish the occurrence of DVT.

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  • 儿童症状性局灶性癫痫和可疑症状性局灶性癫痫:一个观察性的前瞻性多中心研究

    描述新诊断的症状性局灶性癫痫 (Symptomatic focalepilepsies,FS) 和可疑症状性局灶性癫痫 (Presumed symptomatic focalepilepsies,FCE) 患儿入组时及入组后1个月以内的临床、神经心理学和心理病理学特征。将对这些患者入组后随访2~5年,以探究癫痫的病程和药物难治性癫痫的早期预测因素。在这个观察性的多中心全国性研究中,新诊断的FS或者FCE儿童 (年龄1个月~12.9岁) 在15个意大利儿童癫痫高级研究中心被连续纳入。纳入标准如下:①后天或发育因素导致的FS,以及FCE;②首次诊断为癫痫的年龄>1个月并且 < 13岁;③签署书面的知情同意书。临床、脑电图、神经影像以及神经心理资料都用于统计分析。最终纳入259例儿童 (女116例,男143例)。年龄中位数为4.4岁 (范围:1个月~12.9岁),46.0%(n=119)≤3岁,24%(n=61)>3~6岁,30%(n=79)>6岁。71.8%的患儿神经系统检查正常。59.9%头部核磁共振 (MRI) 检查异常。年龄≤3岁组的患儿入组后第一个月发作的频率最高 (P < 0.000 1)。67.2%的患儿第一个月为单药治疗。在基线期,30%的患儿认知功能检查异常;21%存在行为问题。多因素分析发现,年幼儿和颞叶癫痫患儿起病后第一个月内发作频率>5次的几率更大。该项前瞻性的队列研究发现,儿童期起病的FS和FCE患者的许多特征与起病的年龄以及致痫灶的部位有关。

    Release date:2017-04-01 08:51 Export PDF Favorites Scan
  • 儿童患者胼胝体切开术疗效的系统评价

    胼胝体切开术是一种针对全面性或者多灶性难治性癫痫和创伤性跌倒发作的姑息性神经外科手术治疗方式。此研究针对儿童患者的文献进行系统评价。系统检索了发表在Medline, Embase, Web of Knowledge和Scopus上的关于胼胝体切开术治疗效果的文章。纳入患者为手术时年龄<18岁且中位随访时间>1年的研究,同时进行了手术切除的研究被排除。总共12篇文章符合纳入标准。除了1篇是前瞻性研究外,其他所有文章均为回顾性研究,研究者对于发作控制良好的标准很少一致。在使用Engel分级标准的文章中,发现与胼胝体前部切开术相比,胼胝体全程切开术的患者发作减少的可能性更大(58.6% vs. 88.2%, P<0.05), 其中跌倒发作比其他全面性发作类型减少更多。除1例患者被报道死亡以外,其他报道的并发症都很轻微。胼胝体全程切开术的一过性的失连接综合征比胼胝体前部切开术更高(12.5% vs. 0%, P<0.05)。生活质量、行为、智商和发育商的提高以及父母满意度与发作控制效果大致相关。术后抗癫痫药物的数量没有改变。胼胝体全程切开术更可能减少发作。胼胝体前部切开术不大可能导致失连接综合征。虽然所有的研究得到了相似结论,但证据质量较低。这些证据最多支持了胼胝体切开术是一种安全有效的难治性全面性癫痫治疗方式这一假设,仍需要更多的随机病例对照试验证实。

    Release date:2017-05-24 05:46 Export PDF Favorites Scan
  • 癫痫性脑病:对一个重要临床概念的使用和滥用

    癫痫性脑病(Epileptic encephalopathy, EE)是指癫痫活动对脑功能的不良影响超过其潜在的病因。对其潜在的机制知之甚少,但最近的研究表明癫痫发作和发作间期癫痫样放电可以破坏暂时和永久支撑认知功能的神经网络分布。EE只是癫痫中影响发育的多种因素之一。EE所致的认知损害通常难以与潜在的病因或是抗癫痫药物的不良反应区分。这种困难导致越来越多地使用EE来概括“严重的”癫痫综合征或是与严重的癫痫以及智力障碍相关的病因,而不管癫痫影响认知功能的证据。文献中不但使用EE这个术语来描述癫痫活动导致认知损害的过程,也将其归为一类严重的癫痫综合征,这导致了混淆。提议EE这一术语应该严格用于普遍的癫痫过程影响发育这个中心概念,而应该避免使用EE作为分类方式。需要另一个术语来概括广泛且异质的有严重癫痫和智力障碍的患者,其机制可能是未知的,但是通常与潜在的遗传性、代谢性或结构性病因密切相关。提高对EE致病机制的认识至关重要,可能有利于明确生物标志物用于早期诊断和治疗。

    Release date:2017-11-27 02:36 Export PDF Favorites Scan
  • Interpretation of the REPRISE guideline: a reporting guideline for priority setting of health research

    With the increasingly prominent contradiction between limited health resources and the growing population, priority setting of health research, as a response, has received widespread attention from health systems worldwide. As the results of priority setting at different levels increase year by year, some questions in the results reporting are also constantly emerging. For example, the process of producing the results is vague, too dependent on individual subjective judgment, the participation of individual stakeholder groups is limited or lack of voice, unable to identify potential conflicts of interest, and so on. It does not only seriously affect the effectiveness and rationality of the results themselves, but also create intangible obstacles to their promotion and adoption. In 2019, BMC Medical Research Methodology published ‘Reporting guideline for priority setting of health research (REPRISE)’, which makes uniform specifications for more comprehensive and consistent reporting of results in priority areas. This paper interpreted the background, formulation process and key contents of the REPRISE guideline, with an aim to promote the application of the reporting guideline in China.

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  • Clinical comprehensive evaluation system of drugs: a systematic review

    ObjectiveTo systematically review the studies on the clinical comprehensive evaluation system of drugs at home and abroad. MethodsThe PubMed, EMbase, Cochrane Library, CNKI, WanFang Data, VIP and CBM databases were electronically searched to collect the literature and policy documents of the clinical comprehensive evaluation system of drugs from inception to October 31, 2022. The evaluation organization, evaluation perspective, application scope, domains and criteria were sorted out, and the evaluation of different types of drugs was analyzed in detail. ResultsA total of 101 clinical comprehensive evaluation systems of drugs were included. The publishing time was from 2009 to 2022, and the number of published articles increased. The first author mainly came from 26 countries, including China (n=34), Canada (n=11), the United States (n=10), and Spain (n=10). Forty-seven articles reported the evaluation perspective. All evaluation systems could be used for drug evaluation, of which 43 could be used as universal evaluation tools, and 58 could be used for the evaluation of specific drugs, mainly including anti-tumor drugs (n=15), orphan drugs (n=10) and traditional Chinese medicine (n=7). The number of evaluation domains varied from 2 to 22, and the number of criteria varied from 4 to 56. Among them, economics (n=73), effectiveness (n=72), safety (n=54), disease demand/burden (n=34), and innovation (n=24) were the most frequent evaluation domains. ConclusionThe research on clinical comprehensive evaluation of drugs at home and abroad has grown up. During the implementation of clinical comprehensive evaluation of Chinese patent medicine, it is necessary to clarify the evaluation perspective, define the evaluation scope, and determine the evaluation domains.

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  • Deliberative processes for health technology assessment: interpretation of the guideline from the Joint HTAi/ISPOR Task Force

    Health Technology Assessment International (HTAi), in conjunction with the International Society for Pharmacoeconomics and Outcomes Research (ISPOR), initiated a joint Task Force and published guideline and a checklist for deliberative processes for health technology assessment (HTA). Currently, there is a lack of guidance for designing and implementing deliberative processes of HTA in China, so this paper performs a detailed interpretation of the guideline and checklist, with a view to providing a reference for China's HTA and deliberative process, in order to promote the dissemination and application of the HTA methodology, and advance the construction of domestic HTA deliberative processes capacity and institutional mechanism.

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  • A study of autophagy flux abnormal block in atypical hippocampal sclerosis

    ObjectiveThe abnormal autophagy fluxis involved in the pathophysiological process of drug-resistance temporal lobe epilepsy (TLE).Hippocampal sclerosis (HS) is the main pathological type of drug-resistance TLE.Different subtypes of HS have various prognosis, etiology and pathophysiology.However, whether theabnormal block ofautophagy flux involved in this process has not been reported.This study proposed a preliminary comparison of autophagy fluxin typical and atypical HS to investigate the potential pathogenesis and drug-resistance mechanism of atypical HS. MethodsSurgical excision of hippocampal and temporal lobe epilepsy foci were performed in 17 patients with drug-resistance TLE.Patients were grouped according to the HS classification issued by International League Against Epilepsy in 2013.The distribution and expression of LC3B, beclin-1 and P62 were detected by immunohistochemistry and Western blot in each group. ResultsLC3B, beclin-1 and P62 are mainly expressed in neuronal cytoplasm, which is consistent with previous reports.Taking β-actin as internal reference, we found that LC3B and Beclin-1, the downstream products of autophagy flux, have increased significantly (P < 0.01) in the atypical HS group compared to typical HS group.However, the autophagy flux substrate P62 has no difference between the groups.This result suggested that compared with the typical HS group, atypical HS group had autophagy substrate accumulation and autophagy flux abnormal block.Besides, we found that glyceraldehycle-3-phosphate dehydrogenase(GAPDH) was significantly different between the two groups (P=0.003). ConclusionThere is abnormal phenomenon of autophagy flux in atypical HS, and GAPDH elevation may be involved in its mechanism, which might provide new targets and ideas for future treatment of atypical HS.

    Release date:2017-09-26 05:09 Export PDF Favorites Scan
  • Clinical efficacy of anterior mediastinal tumor resection by thoracoscopic subcostal approach versus classic subxiphoid approach: A retrospective cohort study

    ObjectiveTo explore the clinical efficacy of two procedures in thoracoscopic anterior mediastinal tumor resection. MethodsA retrospective study was conducted on patients who underwent thoracoscopic anterior mediastinal tumor resection at the Department of Thoracic Surgery, the 910th Hospital of Joint Logistics Support Force from October 2016 to January 2024. Patients were divided into two groups according to the surgical approach: a modified approach group (bilateral intercostal ports+two subcostal ports) and a classic subxiphoid approach group (one subxiphoid port+two subcostal ports). Perioperative data and postoperative improvement of myasthenia gravis (MG) subgroup were compared between the two groups. ResultsA total of 55 patients were included, including 27 males and 28 females with a mean age of 47.5 (21-72) years. There were 23 patients in the modified approach group and 32 patients in the classic subxiphoid approach group. The modified approach group had shorter operation time (129.0±20.5 min vs. 148.9±16.7 min, P<0.001), less intraoperative blood loss (63.0±16.6 mL vs. 75.0±10.8 mL, P<0.001), shorter postoperative drainage tube removal time (3.1±0.4 d vs. 3.9±0.6 d, P<0.001) and shorter postoperative hospital stay (4.2±0.4 d vs. 5.0±0.6 d, P<0.001), and lower proportion of intraoperative cardiac dysfunction [4 (17.4%) vs. 14 (43.8%), P=0.040]. There was no statistical difference in maximum diameter of tumor resected (4.5±1.7 cm vs. 4.0±0.9 cm, P=0.193) and postoperative drainage volume (396.4±121.5 mL vs. 399.9±161.3 mL, P=0.932). There was 1 patient of perioperative collateral injury in the modified approach group (pericardial injury), and 6 patients in the classic subxiphoid approach group (1 patient of diaphragm injury, 1 patient of liver contusion, 4 patients of pericardial injury). There was no statistical difference in pain scores at 24 h, 48 h and 72 h after surgery (P>0.05). The postoperative improvement of myasthenia gravis symptoms in the modified approach group was better than that in the classic subxiphoid approach group at 1 year after surgery (complete stable remission rate: 77.8% vs. 50.0%; effective rate: 100.0% vs. 91.6%). No conversion to open chest surgery occurred in either group, and there were no postoperative rehospitalizations or deaths related to surgery within 30 days after surgery in both groups. ConclusionThe modified approach is safe and controllable with more open surgical field and more reliable complete resection range than the classic subxiphoid approach group.

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  • Thoracoscope Surgery in 14 Children by Retaining Spontaneous Breathing under Intravenous Anesthesia

    目的探讨单腔气管内插管保留自主呼吸的静脉全身麻醉下小儿胸腔镜手术的可行性及安全性。 方法选取郑州大学第一附属医院胸外科2012年2~12月采用单腔气管内插管保留自主呼吸行静脉全身麻醉下胸腔镜手术治疗的14例患儿作为试验组,男9例、女5例,年龄4~9岁;选取2010年5月至2011年10月采用常规双腔气管内插管全身麻醉下胸腔镜手术治疗的20例小儿患者作为对照组,男13例、女7例,年龄3~10岁。比较两组手术时间、术中失血量、术毕至拔管时间、住院费用、住院时间及术后并发症发生率等指标。 结果两组患儿手术均顺利,无术中术后死亡。试验组和对照组患儿平均手术时间[(85.7±16.9)min vs.(83.5±16.5)]及术中失血量[(90.0±55.0)ml vs.(85.0±50.0)ml]差异无统计学意义(P>0.05)。试验组的术毕至拔管时间[(0.5±0.1)min vs.(8.3±1.4)min]、住院费用[(24.3±4.7)千元vs.(27.8±5.3)千元]、住院时间[(6.6±0.9)d vs.(12.7±3.2)d]、术后并发症发生率(7.1%vs.25.0%)都显著短或少于对照组(P < 0.05)。 结论单腔气管内插管保留自主呼吸静脉全身麻醉下小儿胸腔镜手术治疗小儿胸部疾病具有一定的安全性及可行性。

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