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Recurrent and chronic appendicitis:Diagnostic challenges and clinical insights
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作者 Steven H Yale Halil Tekiner Eileen S Yale 《World Journal of Gastrointestinal Surgery》 2025年第11期504-507,共4页
Chronic and acute recurrent appendicitis are often underrecognized in clinical practice,particularly in patients presenting with persistent or recurrent right lower quadrant abdominal pain.It is essential to obtain a ... Chronic and acute recurrent appendicitis are often underrecognized in clinical practice,particularly in patients presenting with persistent or recurrent right lower quadrant abdominal pain.It is essential to obtain a detailed and comprehensive history from the patient,as careful questioning often reveals a history of prior attacks.Diagnosing recurrent and chronic appendicitis remains challenging,necessitating thorough history-taking,awareness of varied clinical presentations,and physical examination integrating specific maneuvers.Maintaining a high index of clinical suspicion is essential for recognizing these atypical presentations.Confirming a high pretest probability prior to surgical intervention is crucial to avoid unnecessary procedures. 展开更多
关键词 APPENDICITIS CHRONIC RECURRENT rovsing SIGN
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自治水下机器人研究开发的现状和趋势 被引量:43
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作者 封锡盛 刘永宽 《高技术通讯》 EI CAS CSCD 1999年第9期55-59,51,共6页
简要回顾了自治水下机器人AUVs研究的历史。
关键词 AUVS ROVs UUVs 载人潜器 水下机器人
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罗非鱼源无乳链球菌ZQ0910转录调控因子rovS基因的克隆及表达研究 被引量:4
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作者 王蓓 简纪常 +5 位作者 鲁义善 蔡双虎 黄郁葱 汤菊芬 李桂欢 吴灶和 《水产学报》 CAS CSCD 北大核心 2013年第4期584-592,共9页
为了对罗非鱼源无乳链球菌ZQ0910株毒力相关转录调控因子rovS进行克隆及表达研究,实验根据GenBank上登录的相关基因设计引物,采用PCR方法扩增该株细菌的rovS基因,然后将该基因定向克隆到原核表达载体pET-28a(+)中,在大肠杆菌Rosetta(DE3... 为了对罗非鱼源无乳链球菌ZQ0910株毒力相关转录调控因子rovS进行克隆及表达研究,实验根据GenBank上登录的相关基因设计引物,采用PCR方法扩增该株细菌的rovS基因,然后将该基因定向克隆到原核表达载体pET-28a(+)中,在大肠杆菌Rosetta(DE3)中进行IPTG诱导表达。结果显示,该基因有849个碱基,编码282个氨基酸;同源基因序列比对显示,无乳链球菌ZQ0910株与无乳链球菌2 603 V与ATCC13813的rovS基因的同源性最高;经IPTG诱导后表达的融合蛋白分子量为34 ku;用亲和层析后的融合蛋白免疫新西兰大白兔制备多克隆抗体,经ELISA检测效价达到1∶512 000。研究结果表明,实验成功克隆与表达了rovS基因,为深入探讨RovS调节因子在调节细菌的代谢、生长和毒力等多种生命活动中的作用提供了理论依据。 展开更多
关键词 无乳链球菌ZQ0910 RovS转录调控因子 克隆 原核表达
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Signs and syndromes in acute appendicitis:A pathophysiologic approach
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作者 Steven Howard Yale Halil Tekiner Eileen Scott Yale 《World Journal of Gastrointestinal Surgery》 SCIE 2022年第7期727-730,共4页
Physical examination signs have not been well studied,and their accuracy and reliability in diagnosis remain unknown.The few studies available are limited in that the method of performing the sign was not stated,the t... Physical examination signs have not been well studied,and their accuracy and reliability in diagnosis remain unknown.The few studies available are limited in that the method of performing the sign was not stated,the technique used was not standardized,and the position of the appendix was not correlated with imaging or surgical findings.Some appendiceal signs were written in a non-English language and may not have been appropriately translated(e.g.,Blumberg-Shchetkin and Rovsing).In other cases,the sign described differs from the original report(e.g.,Rovsing,Blumberg-Shchetkin,and Cope sign,Murphy syndrome).Because of these studies limitations,gaps remain regarding the signs’utility in the bedside diagnosis of acute appendicitis.Based on the few studies available with these limitations in mind,the results suggest that a positive test is more likely to be found in acute appendicitis.However,a negative test does not exclude the diagnosis.Hence,these tests increase the likelihood of ruling in acute appendicitis when positive but are less helpful in ruling out disease when negative.Knowledge about the correct method of performing the sign may be a valuable adjunct to the surgeon in further increasing their pretest probability of disease.Furthermore,it may allow surgeons to study these signs further to better understand their role in clinical practice.In the interim,these signs should continue to be used as a tool to supplement the clinical diagnosis. 展开更多
关键词 APPENDICITIS Signs and symptoms PSOAS rovsing Signs and symptoms SYNDROME
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