Effect of corneal stromal pocket irrigation in small-incision lenticule extraction

ObjectivesTo investigate the effect of corneal stromal pocket irrigation after small-incision lenticule extraction (SMILE) on visual acuity, intraocular pressure (IOP), corneal parameters and complications after surgery.MethodsA total of 242 eyes of 121 patients undergoing SMILE were enrolled in this prospective controlled study, and it was designed for one eye to randomly undergo SMILE with balanced salt solution irrigation of the corneal stromal pocket, while the other eye was not. The uncorrected distance visual acuity (UDVA) and slit lamp examination were recorded at 1 hour, 1 day, 1 week, and 1 month. Postoperative corneal density, corneal biomechanical, corneal endothelial cell number, and anterior OCT images were compared at 1 day, 1 week, and 1 month.ResultsCompared with the nonirrigation group, the irrigation group showed significantly higher UDVA at 1 day postoperatively (P < 0.05), but there was no significant difference during the rest of the postoperative period (1 hour, 1 week, and 1 month). In addition, no significant differences were found in IOP, corneal density, corneal biomechanics, corneal endothelial cells, and corneal morphology. No visual decline or severe postoperative complications were found in the patients in this study.ConclusionsInterlamellar irrigation did not affect IOP, corneal parameters, morphology, complications, or UDVA at 1 hour, 1 week, and 1 month after the operation, but it may promote UDVA 1 day after the operation.Subject terms: Refractive errors, Outcomes research, Surgery     

加强型鼻咽通气道应用于鼻腔手术后气道管理临床研究

目的研制加强型鼻咽通气道应用于五官科鼻腔手术后的气道管理。方法选取2014年1月至2015年3月行五官科鼻腔手术的患者60例,将其分为A组和B组,各30例。A组作为加强型鼻咽通气道组,术毕在膨胀止血海绵中放置加强型鼻咽通气道保留鼻腔通气;B组作为对照组,术毕采用传统单纯填塞膨胀止血海绵。通过术后24、48 h随访,对两组患者进行疼痛、睡眠质量、口干程度评分,并对其进行对比分析。结果加强型鼻咽通气道具有良好的抗压抗折性;A组患者24、48 h睡眠质量、口干程度评分均明显优于B组,差异均有统计学意义(P<0.05)。结论加强型鼻咽通气道用于五官科鼻腔手术后气道管理可增强气道管理安全性及患者舒适度。     

泼尼松联合丙种球蛋白对重症肌无力患者外周血 乙酰胆碱受体抗体水平及转化生长因子 -β1 的影响

目的：观察泼尼松联合丙种球蛋白对重症肌无力（MG）患者外周血乙酰胆碱受体抗体（AChR-Ab）水平及转 化生长因子 -β1（TGF-β1）的影响。方法：选择 94 例 MG 患者为观察对象，按随机数表法分为观察组和对照组各 47 例。 对照组给予泼尼松口服，观察组采用泼尼松联合丙种球蛋白治疗，比较治疗前及治疗 1 个月后两组患者外周血 AChRAb、TGF-β1 水平变化，并分析两组患者治疗 1 个月后的疗效及治疗 1 个月内的不良反应情况差异。结果：治疗 1 个月后， 观察组疗效明显高于对照组（P＜0.05）；两组外周血 AChR-Ab 水平均较治疗前明显降低，且观察组明显较同期对照组 低（P＜0.05），两组 TGF-β1 水平均较治疗前明显升高，且观察组明显较对照组高（P＜0.05）。治疗 1 个月内，两组 药物不良反应率比较无明显差异（P＞0.05）。结论：丙种球蛋白联合泼尼松治疗 MG 有效，可显著提高 TGF-β1 水平 并降低外周血 AChR-Ab 水平，且安全性良好，不易发生不良反应。     

盐酸氨溴索与多索茶碱治疗慢性支气管炎的疗效评价

目的探讨对慢性支气管炎急性发作期患者采用盐酸氨溴索联合多索茶碱治疗的临床疗效。方法选取本院收治的慢性支气管炎急性发作期患者88例为研究对象,收治时间为2018年3月-2019年3月,根据入院时间将患者随机分为两组,对照组(n=44)和观察组(n=44)。观察组患者采用盐酸氨溴索联合多索茶碱治疗,对照组采用多索茶碱治疗,对两组患者治疗后的治疗有效率以及两组患者症状改善情况进行观察比较。结果观察组患者治疗有效率(97.7%)高于对照组(84.1%),P <0.05;观察组患者症状改善情况优于对照组,P <0.05。结论盐酸氨溴索联合多索茶碱治疗慢性支气管炎急性发作期患者,临床疗效较好,改善患者症状情况。     

Comparison of the practicability of ultrasound and spiral computed tomography in the diagnosis of colon cancer: A protocol for systematic review and meta-analysis

Background:Colon cancer is a common malignant tumor of the gastrointestinal tract. Therefore, a clear diagnosis is particularly important for the treatment of colon cancer. Ultrasound and spiral computed tomography (CT) can both be used in the diagnosis, but each has its own advantages and disadvantages, which could cause confusion in clinical choice. The purpose of this study was to systematically evaluate the practicability of spiral CT and ultrasound in the diagnosis of colon cancer.Methods:A systematic search was performed by retrieving on English databases (PubMed, Embase, Web of Science, the Cochrane Library) and Chinese databases (CNKI, Wanfang, Weipu [VIP], CBM). Besides, manually search for Google and Baidu academic of diagnostic experimental study of ultrasound and spiral CT in the diagnosis of Colon Cancer. The retrieval time limit was from the establishment of the database to October 2020. Two researchers independently extracted and evaluated the quality of the data in the included study. A meta-analysis was performed using Meta Disc1.4 and RevMan5.3 software.Results:Sensitivity, specificity, positive Likelihood ratio, negative likelihood ratio, and diagnostic odds ratio were used to determine the diagnostic efficacy of ultrasonography and helical CT in colorectal cancer.Conclusions:This study will compare the practicability of CT and ultrasound in the diagnosis of colon cancer and provide reliable evidence-based basis for clinicians to choose the appropriate or best evidence-based basis.Ethics and dissemination:The private information from individuals will not be published. This systematic review also will not involve endangering participant rights. Ethical approval is not required. The results may be published in a peer-reviewed journal or disseminated in relevant conferences.OSF Registration number:DOI 10.17605/OSF.IO/WAJHQ     

放射性心脏损伤动物模型相关实验研究进展

当利用放射线对胸部恶性肿瘤进行治疗时，位于纵隔的心脏会不可幸免受到照射，从而诱发放射性心脏损伤（radiation-induced heart disease, RIHD）。随着手术以及放化疗技术的提升，肿瘤患者生存时间得到延长，使得RIHD这一放疗远期并发症被越来越多的报道。因此，学者们对于RIHD的研究逐渐升温。目前国内外学者关于该疾病尚未形成统一的认识，临床上缺乏有效阻止其发生的方法。动物模型研究可为临床该疾病治疗及预防提供可靠证据，为此本文回顾分析近年来放射性心脏损伤动物模型实验研究情况，旨在为后续实验开展及临床应用提供参考。     

microRNA-613调控CDK14来抑制老年胶质瘤患者瘤细胞的增殖和侵袭作用

目的 探讨microRNA-613调控细胞周期蛋白依赖性激酶14(CDK14)通路来抑制老年胶质瘤患者瘤细胞增殖和侵袭的机制。方法 购自上海北诺生物科技有限公司的人脑胶质瘤细胞株U251共24株,分为shNC组、shmicroRNA-613组、Vector组、microRNA-613组,每组各6株; Western Blotting法和qRT-PCR法检测敲减microRNA-613和过表达microRNA-613后的人脑胶质瘤细胞株U251中CDK14蛋白表达水平,CCK-8细胞增殖实验、Transwell小室实验验证敲除microRNA-613和过表达microRNA-613后U251细胞的增殖、侵袭能力。结果 人胶质瘤细胞株U251敲减microRNA-613后CDK14蛋白表达增加(P<0.05); 人胶质瘤细胞株U251过表达microRNA-613后CDK14蛋白表达减少(P<0.05); 转染第24、36、48 h microRNA-613组U251细胞增殖率P<0.05); microRNA-613组U251细胞侵袭能力>Vector组,shNC组>shmicroRNA-613组(P<0.05)。结论 microRNA-613可通过调控CDK14信号转导通路来抑制人脑胶质瘤细胞U251增殖、转移。     

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喘鸣是婴幼儿时期呼吸道疾病中最常见的症状,病因很多,并非所有的喘鸣均由哮喘引起。气管、支气管炎及气管、支气管软骨软弱、异物、血管畸形,胸内肿瘤以及支气管淋巴结核等,均可引起喘鸣。分析天津市儿童医院收治的以喘鸣为主要症状的3岁以下婴幼儿196例,其主要病因见表1。表1天津市儿童医院收治的196例以喘鸣为主要症状的婴幼儿喘鸣病因病因例数大气道阻塞气管、支气管异物21气管、支气管淋巴结核51先天性气管、支气管、肺发育畸形12支气管软骨软化3纵隔囊肿和(或)肿瘤19血管畸形1中叶综合征5小气道阻塞毛细支气管炎30以喘息为表型的婴幼…     

胰腺实性-假乳头状瘤1例

患者,女,17岁。偶然发现左上腹肿块10余天入院。无恶心、呕吐。查体:皮肤巩膜无黄染,浅表未及肿大淋巴结,左上腹扪及一包块,大小约10·5 cm×10·0 cm,边界清晰,无压痛,肝脾肋下未及。实验室检查未见异常。B超示:胰尾见一9·5 cm×8·6 cm肿物,呈囊实性,回声不均匀,边界清晰。CT示:胰尾见一类圆形囊实性肿块,大小约8·9 cm×8·5 cm,边界清晰,壁厚薄不均,见多个壁结节(图1),肝内胆管及胰管未见扩张,左肾受压。增强后壁结节呈明显强化,肿瘤胰腺交界处呈杯口状改变(图2)。CT诊断:胰尾良性占位。手术所见:胰尾扪及一肿物,大小约9·6 cm×8·8…