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Possibility of women treated with fertility-sparing surgery for non-epithelial ovarian tumors to safely

Bin Yang, Yan Yu, Jing Chen, Yan Zhang, Ye Yin, Nan Yu, Ge Chen, Shifei Zhu, Haiyan Huang, Yongqun Yuan, Jihui Ai, Xinyu Wang, Kezhen Li

《医学前沿（英文）》 2018年 第12卷 第5期   页码 509-517 doi: 10.1007/s11684-017-0554-3

摘要：

This study was performed to evaluate the oncological and reproductive outcomes of childbearing-age women treated with fertility-sparing surgery (FSS) for non-epithelial ovarian tumors in China. One hundred and forty eight non-epithelial ovarian tumor women treated with FSS between January 1, 2000 and August 31, 2015 from two medical centers in China were identified. Progression-free survival (PFS) was 88.5%, whereas overall survival (OS) was 93.9%. Univariate analysis suggested that delivery after treatment is related to PFS (P=0.023), whereas histology significantly influenced OS. Cox regression analysis suggested that only histology was associated with PFS and OS (P<0.05). Among the 129 women who completed adjuvant chemotherapy (ACT), none developed amenorrhea. Among the 44 women who desired pregnancy, 35 (79.5%) successfully had 51 gestations including 35 live births without birth defects. Non-epithelial ovarian tumors can achieve fulfilling prognosis after FSS and chemotherapy. Histology might be the only independent prognostic factor for PFS and OS. FSS followed by ACT appeared to have little or no effect on fertility. Meanwhile, postoperative pregnancy did not increase the PFS or OS. Use of gonadotropin-releasing hormone agonist was not beneficial for fertility.

关键词： malignant germ cell tumors     ovarian sex cord-stromal tumors     fertility-sparing surgery     prognosis     fertility    

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Soil enzyme activities and their indication for fertility of urban forest soil

SHAN Qihua, YU Yuanchun, ZHANG Jinchi, YU Jian

《环境科学与工程前沿（英文）》 2008年 第2卷 第2期   页码 218-223 doi: 10.1007/s11783-008-0037-5

摘要： To reveal the biological characteristics of urban forest soil and the effects of soil enzyme on soil fertility as well as the correlation between physicochemical properties and enzyme activities, 44 urban forest soil profiles in Nanjing were investigated. Basic soil physicochemical properties and enzyme activities were analyzed in the laboratory. Hydrogen peroxidase, dehydrogenase, alkaline phosphatase, and cellulase were determined by potassium permanganate titration, TTC (CHN·Cl) colorimetry, phenyl phosphate dinatrium colorimetry, and anthrone colorimetry, respectively. The result showed that soil pH, organic carbon (C), and total nitrogen (N) had great effects on hydrogen peroxidase, dehydrogenase, and alkaline phosphatase activities in 0–20 cm thick soil. However, pH only had great effect on hydrogen peroxidase, dehydrogenase, and alkaline phosphatase activities in 20–40 cm thick soil. Hydrogen peroxidase, dehydrogenase, and alkaline phosphatase were important biological indicators for the fertility of urban forest soil. Both in 0–20 cm and 20–40 cm soil, soil enzyme system (hydrogen peroxidase, dehydrogenase, alkaline phosphatase, and cellulase) had a close relationship with a combination of physicochemical indicators (pH, organic C, total N, available K, available P, cation exchange capacity (CEC), and microbial biomass carbon (C)). The more soil enzyme activities there were, the higher the fertility of urban forest soil.
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Laparoscopic surgery for pancreatic lesions: current status and future

Taiping Zhang, Xiao Du, Yupei Zhao

《医学前沿（英文）》 2011年 第5卷 第3期   页码 277-282 doi: 10.1007/s11684-011-0147-5

摘要： Laparoscopic pancreatic surgery has been gaining increasing recognition in recent years, and its practice has increased despite its highly complex procedure and longer learning curve compared with surgeries for other abdominal organs. Laparoscopic distal pancreatectomy and tumor enucleation are two of the fastest-growing techniques and are currently in wide use because of their comparable technical simplicity. Literature review showed that laparoscopic distal pancreatectomy and enucleation are safe and efficient approaches for benign and low-degree malignant tumors; however, the indication for malignant tumors remains controversial. Laparoscopic pancreaticoduodenectomy is practiced in a limited number of surgical centers and presented as case reports or in small series. Although its feasibility was demonstrated by many surgeons, whether the laparoscopic procedure can achieve benefits comparable to or even more prominent than those of an open procedure has not been clinically proven. Prospective, randomized, controlled trials of laparoscopic operation versus open pancreatic surgery are necessary to justify the wide application and routine practice of the laparoscopic procedure for pancreatic lesions.

关键词： minimally invasive surgery     pancreatic surgery     pancreatic neoplasm     distal pancreatic lesions     pancreatic fistula    

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Advances in tissue state recognition in spinal surgery: a review

Hao Qu, Yu Zhao

《医学前沿（英文）》 2021年 第15卷 第4期   页码 575-584 doi: 10.1007/s11684-020-0816-3

摘要： Spinal disease is an important cause of cervical discomfort, low back pain, radiating pain in the limbs, and neurogenic intermittent claudication, and its incidence is increasing annually. From the etiological viewpoint, these symptoms are directly caused by the compression of the spinal cord, nerve roots, and blood vessels and are most effectively treated with surgery. Spinal surgeries are primarily performed using two different techniques: spinal canal decompression and internal fixation. In the past, tactile sensation was the primary method used by surgeons to understand the state of the tissue within the operating area. However, this method has several disadvantages because of its subjectivity. Therefore, it has become the focus of spinal surgery research so as to strengthen the objectivity of tissue state recognition, improve the accuracy of safe area location, and avoid surgical injury to tissues. Aside from traditional imaging methods, surgical sensing techniques based on force, bioelectrical impedance, and other methods have been gradually developed and tested in the clinical setting. This article reviews the progress of different tissue state recognition methods in spinal surgery and summarizes their advantages and disadvantages.

关键词： spinal surgery     tissue state recognition     image     force sensing     bioelectrical impedance    

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Current progress on natural orifice transluminal endoscopic surgery (NOTES)

null

《医学前沿（英文）》 2012年 第6卷 第2期   页码 187-194 doi: 10.1007/s11684-012-0198-2

摘要：

Natural orifice transluminal endoscopic surgery (NOTES) has received considerable interest in recent years as a novel surgical technique. Here, we aim to review the current progress on NOTES, particularly focusing on the advantages and complications related to NOTES, the recent advances of surgical approaches, new instruments for closure of the natural orifice incision, and the newly developed platform for NOTES. Finally, we make a prediction of the conceivable applications of NOTES on human subjects.

关键词： natural orifice transluminal endoscopic surgery (NOTES)     laparotomy     laparoscopy    

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Agricultural extension approach: evidence from an Integrated Soil Fertility Management Project in Ethiopia

Gerba LETA, Steffen SCHULZ, Girum GETACHEW ALEMU

《农业科学与工程前沿（英文）》 2020年 第7卷 第4期   页码 427-439 doi: 10.15302/J-FASE-2020331

摘要：

Agricultural extension is an approach to rural development and agricultural transformation in which training, demonstration and technology transfer are key to reducing rural poverty, ensuring food security, and sustainably managing natural resources. During recent decades, different extension approaches have been tested and validated by the Ethiopian government and non-governmental organizations to stimulate in the agricultural extension system (AES). The most recent was a German-funded project entitled “Integrated Soil Fertility Management Project” (ISFM ), which employed a novel approach to piloting and upscaling proven technology and best practice. The purpose of this study was to analyze and document the modalities of ISFM and illustrate its effects on technology uptake and dissemination. The study used a mixed methods approach to collect data. ATLAS.ti and SPSS were used for data management and analysis. Farmer Research and Extension Groups and Farmer Field Schools were found to be central to the participation process. Also, the ISFM was found to aid technology transfer and helped to increase grain and residue yields as well as farmer livelihoods. Based on these empirical findings, it is argued that the ISFM approach and technology should be integrated and institutionalized in the mainstream AES in order to promote their extensive application.

关键词： Ethiopia     Farmer Field School     Farmer Research and Extension Group     governance     institutionalization     ISFM+ ambassador     participation    

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Achievements in burn surgery over the past 50 years in China

WANG Shiliang

《医学前沿（英文）》 2008年 第2卷 第4期   页码 332-336 doi: 10.1007/s11684-008-0063-5

摘要： This paper reflects on the advancements of clinical and scientific research in the field of burn surgery in China. It includes emergency care of massive burns, resuscitation, anti-infection, prevention and cure of internal organ injuries, metabolic and nutritional support, wound repair and rehabilitation, and special types of burns; it also covers pathology, microbiology, immunology, cell biology, molecular biology, and tissue engineering.

关键词： immunology     scientific     nutritional     microbiology     engineering    

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Lobectomy by video-assisted thoracoscopic surgery (VATS) for early stage of non-small cell lung cancer

null

《医学前沿（英文）》 2011年 第5卷 第1期   页码 53-60 doi: 10.1007/s11684-011-0121-2

摘要：

Video-assisted thoracoscopic surgery (VATS) provides a new approach for treating early-stage lung cancer. Lobectomy by VATS has many advantages over conventional thoracotomy, such as shorter recovery time, less postoperative pain, and faster resumption of a normal lifestyle. However, there is still much debate on the role of VATS in lobectomy for the treatment of lung cancer. Concerns regarding safety, the extent of mediastinal lymph node dissection, and long-term survival have made some surgeons apprehensive of its validity for lung cancer. In this paper, we review the development of thoracoscopy, the present status of VATS for early stage of non-small cell lung cancer (NSCLC), and comparison between VATS and open thoracotomy in the management of NSCLC.

关键词： non-small cell lung cancer     video-assisted thoracoscopic surgery     lobectomy    

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Risk factors for ventilator-associated pneumonia among patients undergoing major oncological surgery

null

《医学前沿（英文）》 2017年 第11卷 第2期   页码 239-246 doi: 10.1007/s11684-017-0509-8

摘要：

Patients undergoing major oncological surgery for head and neck cancer (SHNC) have a particularly high risk of nosocomial infections. We aimed to identify risk factors for ventilator-associated pneumonia (VAP) in patients undergoing SHNC. The study included 465 patients who underwent SHNC between June 2011 and June 2014. The rate of VAP, risk factors for VAP, and biological aspects of VAP were retrospectively evaluated. The incidence of VAP was 19.6% (n=95) in patients who required more than 48 h of mechanical ventilation. Staphylococcus (37.7%), Enterobacteriaceae (32.1%), Pseudomonas(20.8%), and Haemophilus (16.9%) were the major bacterial species that caused VAP. The independent risk factors for VAP were advanced age, current smoking status, chronic obstructive pulmonary disease, and a higher simplified acute physiology score system II upon admission. Tracheostomy was an independent protective factor for VAP. The median length of stay in the ICU for patients who did or did not develop VAP was 8.0 and 6.5 days, respectively (P=0.006). Mortality among patients who did or did not develop VAP was 16.8% and 8.4%, respectively (P<0.001). The potential economic impact of VAP was high because of the significantly extended duration of ventilation. A predictive regression model was developed with a sensitivity of 95.3% and a specificity of 69.4%. VAP is common in patients who are undergoing SHNC and who require more than 48 h of mechanical ventilation. Therefore, innovative preventive measures should be developed and applied in this high-risk population.

关键词： ventilator-associated pneumonia (VAP)     pneumonia     risk factors     surgery for head and neck cancer (SHNC)    

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Evaluation of the harmonic scalpel in open surgery for abdominal aortic aneurysm

null

《医学前沿（英文）》 2012年 第6卷 第1期   页码 85-88 doi: 10.1007/s11684-012-0174-x

摘要：

The harmonic scalpel is a hemostatic device primarily designed for use in laparoscopic surgery. During the last few years, many surgeons have begun to use the harmonic scalpel in open surgery. Several papers have cited the benefits of the device compared with conventional knot-tying techniques; however, no evidence showing the advantages of using the harmonic scalpel in complicated abdominal aortic aneurysm (AAA) surgery has been presented. The aim of the present study is to determine the value of the harmonic scalpel in open operation for AAA. A total of 153 patients who underwent open surgery for AAA at the Department of Vascular Surgery of Guangdong General Hospital, China between January 2001 and December 2010, were retrospectively analyzed. Open surgery performed with the harmonic scalpel on 105 patients was compared with open operation using conventional knot-tying techniques on 48 patients. The operative time, intraoperative blood loss, total postoperative drainage fluid volumes, hospital stay, and postoperative complications between the two groups were compared. The harmonic scalpel group was associated with a shorter operation time (113.2±23.6 min vs. 232.1±39.2 min, P<0.01) and lower intraoperative blood loss (126.1±96.6 ml vs. 592.1±207.2 ml, P<0.01). Postoperative drainage fluid volumes were greater in the conventional surgery group than in the harmonic scalpel group (702.1±192.8 ml vs. 198.5±97.4 ml, P<0.01). The hospital stay was shorter for the harmonic scalpel group than for the conventional surgery group (10.7±3.3 d vs. 16.5±4.7 d, P<0.05). No differences between the postoperative complications or hospital mortality of the two groups were found. The harmonic scalpel is a safe and minimally invasive tool in open surgery for AAA and is associated with shorter operative time, shorter hospital stay, and lower intraoperative blood loss and postoperative drainage fluid volumes compared with conventional knot-tying techniques.

关键词： abdominal aortic aneurysm     harmonic scalpel     minimally invasive    

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Development of splenic surgery in China

JIANG Hongchi, ZHAO Xianqi, GAO Yue

《医学前沿（英文）》 2007年 第1卷 第2期   页码 126-129 doi: 10.1007/s11684-007-0024-4

摘要： Splenic surgery has enjoyed rapid progress for the past decades in China. Based on continuously solidifying theories and clinical practice, many advanced concepts with applicable clinical frameworks have been established, thus making splenic surgery an indispensable division in modern surgery. In this study, the authors try to give an overview of the developments in this field. Spleen function is a key issue that generally guides advances in splenic surgery. The old knowledge of the dispensable spleen has been abandoned, while the exact role that it plays in the body continues to be unveiled. Now, standard grading for splenic injury and the respective guidelines for clinical management have been established, with the use of selective instead of indiscriminate splenectomy being accepted by most experts. Various spleen sparing operations have been developed, while many advanced techniques such as laparoscopy have been introduced to splenic surgery. Spleen transplantation has greatly advanced in China, even though there are still many unsolved mysteries in this field. Altogether, splenic surgery is a new and prosperous discipline, and it is a tremendous stage for young surgeons to be part of.

关键词： function     respective     prosperous discipline     knowledge     indispensable division    

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Effects of cotton straw amendment on soil fertility and microbial communities

Wuren HUANG, Zhihui BAI, Daniel HOEFEL, Qing HU, Xin LV, Guoqiang ZHUANG, Shengjun XU, Hongyan QI, Hongxun ZHANG

《环境科学与工程前沿（英文）》 2012年 第6卷 第3期   页码 336-349 doi: 10.1007/s11783-011-0337-z

摘要： Maintaining soil fertility, while controlling pollution from excessive chemical fertilizer application is important for keeping soil productivity of sustainable agriculture. Variety of straws have been used and proven to be good soil amendments for increasing soil organic matter (OM) and a range of additional soil nutrients. However, little is known about the utilization of cotton straw for soil amendment. To better understand the mechanism behind cotton straw soil amendments, investigations were performed upon cucumber seedlings, where changes to soil nutrients and microbial communities were investigated. The results revealed that the cotton straw application promoted the cucumber seedling growth by significantly increasing the soil OM, available nitrogen, available phosphorus, and available potassium. The concentration of cotton straw was positively correlated to both the number of the culturable microorganisms and also the total microbial biomass within soil. Furthermore, assessment of cotton straw application using Biolog metabolic profiling and phospholipid fatty acid analysis revealed that such application increased the microbial community metabolic activity, and markedly changed the structure of microbial community. 16S rRNA gene clone library construction and phylogenetic analysis of soil bacteria revealed - Proteobacteria sequences dominated the cotton straw amendment soil, comprising 27.8% of the total number of analyzed sequences, while they were less represented in control soil (13.4%). On the contrary, the Sphingobacteria (7.8%) and Verrucomicrobia (2.4%) in the cotton straw amendment soil decreased after application when compared to the control soil 15.2% and 15.2%.

关键词： cotton straw     soil amendments     microbial diversity     Biolog     phospholipid fatty acid     16S rRNA gene clone library    

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INTERCROPPING SUSTAINABLY INCREASES YIELDS AND SOIL FERTILITY

《农业科学与工程前沿（英文）》 2021年 第8卷 第4期   页码 659-661 doi: 10.15302/J-FASE-2021418

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Laparoscopic hepato-biliary-pancreatic surgery: present practices and prospects

Yongjun Chen, Renyi Qin, Xiaoping Chen

《医学前沿（英文）》 2011年 第5卷 第3期   页码 235-238 doi: 10.1007/s11684-011-0156-4

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标题 作者 时间 类型 操作

Possibility of women treated with fertility-sparing surgery for non-epithelial ovarian tumors to safely

Bin Yang, Yan Yu, Jing Chen, Yan Zhang, Ye Yin, Nan Yu, Ge Chen, Shifei Zhu, Haiyan Huang, Yongqun Yuan, Jihui Ai, Xinyu Wang, Kezhen Li

期刊论文

Soil enzyme activities and their indication for fertility of urban forest soil

SHAN Qihua, YU Yuanchun, ZHANG Jinchi, YU Jian

期刊论文

Laparoscopic surgery for pancreatic lesions: current status and future

Taiping Zhang, Xiao Du, Yupei Zhao

期刊论文

Advances in tissue state recognition in spinal surgery: a review

Hao Qu, Yu Zhao

期刊论文

Current progress on natural orifice transluminal endoscopic surgery (NOTES)

null

期刊论文

hepatectomy: comments on “Expert Consensus on Laparoscopic Hepatectomy (2013 Version) by National Hepatic SurgeryGroup, Society of Surgery, Chinese Medical Association”

null

期刊论文

Agricultural extension approach: evidence from an Integrated Soil Fertility Management Project in Ethiopia

Gerba LETA, Steffen SCHULZ, Girum GETACHEW ALEMU

期刊论文

Achievements in burn surgery over the past 50 years in China

WANG Shiliang

期刊论文

Lobectomy by video-assisted thoracoscopic surgery (VATS) for early stage of non-small cell lung cancer

null

期刊论文

Risk factors for ventilator-associated pneumonia among patients undergoing major oncological surgery

null

期刊论文

Evaluation of the harmonic scalpel in open surgery for abdominal aortic aneurysm

null

期刊论文

Development of splenic surgery in China

JIANG Hongchi, ZHAO Xianqi, GAO Yue

期刊论文

Effects of cotton straw amendment on soil fertility and microbial communities

Wuren HUANG, Zhihui BAI, Daniel HOEFEL, Qing HU, Xin LV, Guoqiang ZHUANG, Shengjun XU, Hongyan QI, Hongxun ZHANG

期刊论文

INTERCROPPING SUSTAINABLY INCREASES YIELDS AND SOIL FERTILITY

期刊论文

Laparoscopic hepato-biliary-pancreatic surgery: present practices and prospects

Yongjun Chen, Renyi Qin, Xiaoping Chen

期刊论文