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《医学前沿(英文)》 2017年 第11卷 第2期 页码 223-228 doi: 10.1007/s11684-017-0517-8
The objective of this study is to guide a triage for the management of cervical high-grade squamous intraepithelial lesion (HSIL) patients with positive margin by conization. Clinico-pathological data of HSIL patients with positive margin by conization were retrospectively collected from January 2009 to December 2014. All patients underwent secondary conization or hysterectomy within 6 months. The rate of residual lesion was calculated, and the factors associated with residual lesion were analyzed by univariate and multivariate analyses. Among a total of 119 patients, 56 (47.06%) patients presented residual HSIL in their subsequent surgical specimens, including 4 cases of invasive cervical carcinoma (3 stage IA1 and 1 stage IA2 patients). Univariate analysis showed that patient age>35 years (P=0.005), menopausal period>5 years (P=0.0035), and multiple-quadrant involvement (P=0.001) were significantly correlated with residual disease; however, multivariate analysis revealed that multiple-quadrant involvement (P=0.001; OR, 3.701; 95%CI, 1.496–9.154) was an independent risk factor for residual disease. Nearly half of HSIL patients with positive margin by conization were disease-free in subsequent surgical specimens, and those with multiple positive margins may consider re-conization or re-assessment.
关键词: cervical high-grade squamous intraepithelial lesion conization positive surgical margin hysterectomy
《机械工程前沿(英文)》 2022年 第17卷 第3期 doi: 10.1007/s11465-022-0698-y
关键词: minimally invasive surgery hand−eye calibration intuitive control surgical robot dual quaternion
K. Sathish KUMAR, T. JAYABARATHI
《能源前沿(英文)》 2012年 第6卷 第4期 页码 394-402 doi: 10.1007/s11708-012-0211-0
关键词: support vector machines (SVM) structural risk minimization (SRM) equivalent capacity margin (ECM) restoration fault classification
Cutting performance of surgical electrodes by constructing bionic microstriped structures
《机械工程前沿(英文)》 2023年 第18卷 第1期 doi: 10.1007/s11465-022-0728-9
关键词: surgical electrodes tissue adhesion thermal injury bionic structures cutting performance medical tools
Comparison of surgical indications for hysterectomy by age and approach in 4653 Chinese women
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《医学前沿(英文)》 2014年 第8卷 第4期 页码 464-470 doi: 10.1007/s11684-014-0338-y
Approximately one million hysterectomies are performed each year in China. However, national data regarding the indications and the surgical approaches for hysterectomy are lacking. The aim of this study was to examine the surgical indications for hysterectomy in different age groups and the relative merits of different surgical approaches for hysterectomy in Chinese women. Clinical data from 4653 cases of hysterectomy performed in Tongji Hospital from 2004 to 2009 were analysed. Hysterectomy was most commonly performed among women aged 40--49 years (2299; 49.4%). Overall, colporrhagia and abdominal pain were the two most common indications for hysterectomy. The most common indications by age groups were as follows: malignant ovarian tumour,<20 years; malignant uterine tumour, 20--29 and 30--39 years; uterine myoma, 40--49 and 50--59 years; and uterine prolapse, 60--69 and>70 years. The proportion of malignant aetiology also varied by age, being the highest in women aged<20 years (75.0%) and the lowest in those aged 40--49 years (19.9%). Approximately 35% women who had hysterectomies also had concomitant bilateral oophorectomy. The lowest rate of oophorectomy occurred in women aged 30--39 years (15.8%), whereas the highest rate was in those aged 50--59 years (75.9%). The abdominal surgical approach was used in 84% of all hysterectomies. Surgeries using the vaginal approach required a significantly shorter operating time (118 min average) than all other approaches (P<0.05). Both the amount of bleeding and the blood transfusion volume required were smaller in vaginal approaches, with no significant differences between the others. The surgical approaches used were also related to the scope of surgery. Both the surgical indications and the rates of bilateral oophorectomy varied by age. In terms of both operating time and the amount of bleeding and blood transfusion volume required, the vaginal approach was superior to all other surgical approaches.
关键词: hysterectomy surgical indications surgical approach bilateral oophorectomy
Potential indicators predict progress after surgical resection of gastrointestinal stromal tumors
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《医学前沿(英文)》 2012年 第6卷 第3期 页码 317-321 doi: 10.1007/s11684-012-0203-9
In order to find out the potential indicators predicting prognosis of malignant gastrointestinal stromal tumors (GISTs) after surgical resection, we collected clinical records of 80 patients with malignant GISTs. Tumor location, size, mitotic index, necrosis were compared with the prognosis of malignant GISTs by Kaplan-Meier method and log-rank test. After a median follow-up of 844 days (52–2 145), we found that as National Institutes of Health suggested, tumors with intermediate risk had more favorable prognosis than that with high risk. Their 3-year survival rate were 65.3% and 41.3%, respectively (P<0.001). Moreover, tumor size and mitotic index were associated with free survival. The 3-year survival rate for patients with tumor size≤10 cm and>10 cm were 62.3% and 41.8%, respectively (P = 0.002), Tumors with mitotic index≤5/50 HPF had a higher 3-year survival rate than tumors with mitotic index>5/50 HPF (67.1% versus 40.7%, P = 0.005). The presence of necrosis was directly related to the malignant behavior. The 3-year survival rate for presence and absence necrosis were 50.8% and 64.8% (P = 0.008). From the present study, we can conclude that besides tumors size and mitotic index, tumor location and necrosis also influence on the long-term survival of patient with malignant GISTs after surgical resection.
State-of-the-art of intelligent minimally invasive surgical robots
Masakatsu G. Fujie, Bo Zhang
《医学前沿(英文)》 2020年 第14卷 第4期 页码 404-416 doi: 10.1007/s11684-020-0743-3
关键词: robot history medical robot surgical robot radiofrequency ablation organ model
Advances in the management of the surgical complications for congenital cataract
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《医学前沿(英文)》 2012年 第6卷 第4期 页码 360-365 doi: 10.1007/s11684-012-0235-1
The greatest concern in children with cataracts is irreversible visual loss. The timing of congenital cataract surgery is critical for the visual rehabilitation. Cataract surgery in children remains complex and challenging. The incidence of complications during or after operation is higher in children than adults. Some complications could be avoided by meticulous attention to surgical technique and postoperative care, and others were caused by more exuberant inflammatory response associated with surgery on an immature eye or the intrinsic eyes abnormalities. Utilizing of advanced techniques and timely applying topical corticosteroids and cycloplegic agents can reduce the occurrence of visual axis opacification. Operation on children with strabismus or nystagmus, and applying occlusion therapy on amblyopic eyes can balance the visual inputs to the two eyes. Diagnosis of glaucoma following congenital cataract surgery requires lifelong surveillance and continuous assessment of the problem. So cataract surgeries in children are not the end of journey, but one step on the long road to visual rehabilitation. This paper describes recent evidence from the literature regarding the advance of management after congenital cataract surgery.
Yuyang Chen, Shu’an Zhang, Zhonghao Wu, Bo Yang, Qingquan Luo, Kai Xu
《医学前沿(英文)》 2020年 第14卷 第4期 页码 382-403 doi: 10.1007/s11684-020-0781-x
王建勇,王学忠,马立群
《中国工程科学》 2012年 第14卷 第7期 页码 81-86
2011年,准西海相浅层石炭系火山凝灰岩油气勘探取得了突破,见到了良好的油气显示,特别是排61井在855.7~949.6 m井段,常规试油获得日产6 t的工业油流,50 ℃地面脱气原油黏度为390 mPa·s。排61地区石炭系稳定的海相沉积层既是深部油源岩,又是优质储集层。岩浆活动提供了火山岩储层发育和分布的基础。火山凝灰岩经受了强烈的风化作用和有机酸溶蚀作用,风化壳及次生裂缝很发育,成为优质储层。深部二叠系油气沿红车断裂带和地层超剥带不整合面向高部位运聚成藏。二叠系和三叠系致密的火山岩或泥岩沉积覆盖作为区域性盖层对石炭系油气后期保存至关重要。针对石炭系储层成像较差的难题发展了地震叠前时间偏移处理技术,火山岩地震和测井响应特征比较明显,应用成像测井和核磁共振技术实现了裂缝的定性识别和定量描述。
NO conversion by positive streamer discharge—effects of gas compositions and reaction conditions
HE Wei, ZHU Tianle, LI Jing
《环境科学与工程前沿(英文)》 2007年 第1卷 第2期 页码 153-158 doi: 10.1007/s11783-007-0027-z
关键词: conversion streamer discharge wheel-cylinder positive streamer
基于最大间隔的贝叶斯分类器 Article
Tao-cheng HU,Jin-hui YU
《信息与电子工程前沿(英文)》 2016年 第17卷 第10期 页码 973-981 doi: 10.1631/FITEE.1601078
关键词: 多类学习;最大间隔学习;在线算法
Zhijian Liu, Haiyang Liu, Hang Yin, Rui Rong, Guoqing Cao, Qihong Deng
《环境科学与工程前沿(英文)》 2021年 第15卷 第3期 doi: 10.1007/s11783-020-1327-9
关键词: Operating room (OR) Bacteria-carrying particles (BCPs) Surgical site infections (SSIs) Ventilation
甘自恒
《中国工程科学》 2007年 第9卷 第2期 页码 5-11
据预测,2020年,全球将进入以生物技术产业为主导产业的生物经济时代;阐述了生物经济的提出、 分类、特征和定义;主张把握生物经济时代精神,实践进步的幸福观;探讨了为什么要强调谋求人民幸福,什 么是进步的幸福观,应提倡那些进步的幸福观,以及我国科技界应该怎样实践进步的幸福观。
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《医学前沿(英文)》 2018年 第12卷 第2期 页码 189-195 doi: 10.1007/s11684-017-0533-8
Obstructive sleep apnea syndrome (OSAS) increases the risk of post-surgery complications. This study uses Berlin Questionnaire (BQ) to identify Chinese adult surgical patients who are at a high risk of OSAS and to determine if the BQ could be used to detect potential high risk of adverse respiratory events in the post anesthesia care unit (PACU). Results indicated that only 11.4% of the patients were considered at a high risk of OSAS. Age and body mass index are the key factors for the risk of OSAS prevalence in China and also gender specific. Furthermore, the incidence of adverse respiratory events in the PACU was higher in patients with high risk of OSAS than others (6.8% vs. 0.9%, <0.001). They also stayed longer than others in the PACU (95±28 min vs. 62±19 min, <0.001). Age, high risk for OSAS, and smoking were independent risk factors for the occurrence of adverse respiratory events in the PACU. The BQ may be adopted as a screening tool for anesthesiologists in China to identify patients who are at high risk of OSAS and determine the potential risk of developing postoperative respiratory complications in the PACU.
关键词: obstructive sleep apnea Berlin Questionnaire Chinese surgical patients adverse respiratory event
标题 作者 时间 类型 操作
Triage for management of cervical high-grade squamous intraepithelial lesion patients with positive margin
null
期刊论文
Development of a novel hand−eye calibration for intuitive control of minimally invasive surgical robot
期刊论文
Fault classification and reconfiguration of distribution systems using equivalent capacity margin method
K. Sathish KUMAR, T. JAYABARATHI
期刊论文
Comparison of surgical indications for hysterectomy by age and approach in 4653 Chinese women
null
期刊论文
Potential indicators predict progress after surgical resection of gastrointestinal stromal tumors
null
期刊论文
State-of-the-art of intelligent minimally invasive surgical robots
Masakatsu G. Fujie, Bo Zhang
期刊论文
Review of surgical robotic systems for keyhole and endoscopic procedures: state of the art and perspectives
Yuyang Chen, Shu’an Zhang, Zhonghao Wu, Bo Yang, Qingquan Luo, Kai Xu
期刊论文
NO conversion by positive streamer discharge—effects of gas compositions and reaction conditions
HE Wei, ZHU Tianle, LI Jing
期刊论文
Prevention of surgical site infection under different ventilation systems in operating room environment
Zhijian Liu, Haiyang Liu, Hang Yin, Rui Rong, Guoqing Cao, Qihong Deng
期刊论文