1.Clinical analysis of testicular trauma: a report of 30 cases
Zhenchuan CHEN ; Xuezhu YU ; Fangsheng DAI ; Shu WANG
Chinese Journal of Trauma 1990;0(03):-
Objective To explore the characteristics of diagnosis a nd treatment of testicular trauma. Methods A retrospective study was done on 30 cases of testicular trauma. The treatment effects of non -operation and operation on different types of injuries were observed and com pared. Results Follow-up time ranged from two months to tw o years. There were three cases with testicular atrophy, one with chronic pain l asting for one year and eight with non-operation. All of 22 cases treated with surgical operation were good except for one with sperm disorder due to bilateral testicular trauma. Conclusions Testicular trauma is a speci al type of trauma. Ultrasound is an important diagnostic method for testicular trauma. Surgical exploration should be performed as soon as possible so as to a void testicular atrophy and sperm disorder.
2.Clinical analysis of iatrogenic ureteral injury and bladder injury
Dapang RAO ; Haifeng YU ; Xinde LI ; Yuebing CHEN ; Haibo ZHU ; Yinghe CHEN ; Youhun HE ; Zhenchuan CHEN
Chinese Journal of Urology 2010;31(2):96-98
Objective To investigate the etiology and treatment of iatrogenic ureteral injury(IUI) and bladder injury(IBI). Methods Forty-seven patients(7 males, 40 females) with ureteral and bladder inju-ries caused as a result of any medical procedures were reviewed from 1996 to 2007. Obstetrics and gynecolog-ical, urological,general surgical procedures were involved in 38, 6, and 4 of the injuries respectively. Re-sults Sixteen cases of IUI were found during operation, including 14 cases of entire ureteral laceration, 4 cases of partial ureteral laceration. Thirteen cases received ureteral anastomosis, one case received uretero-neopyelostomy. One case of ureteral perforations during ureteroscopic procedure was indweUed of double-J after the operation was terminated immediately. Three cases received nephrectomy. Four cases of lower ure-teric suture ligation and three cases of ureterovaginal fistula were detected at 3 days~ one week of postopera-tion. These 7 cases were received ureteroneocystomy during 2 weeks after the initial surgical procedure. Nineteen cases of IBI were found during operation, the length of cystic wound was ranging from 1 cm to 3 cm. 17 cases underwent repairing, 2 eases of bladder perforation which caused by endourologic or TVT procedure received catheterization for 1 week. Five cases of vesicovaginal fistula which were found during one week--one month of post-operation, were received fistula resection and bladder repairing 3 months after of initial operation. Forty-seven cases were follow-up ranging from 5 months to 11 years after the second opera-tion,mean time were 47 months. All cases were recovered. Conclusions Intraoperative findings and effec-tive treatments can achieve good therapeutic effects and avoid injury during secondary operation. Correct treatment of urinary fistula can promote cure rate.
3.Research progress of vertebral augmentation for bone cement leakage in osteoporotic vertebral compression fractures
Binbin CHEN ; Jianheng LIU ; Zhenchuan HAN ; Rui ZHONG ; Qingzu LIU ; Keya MAO
Chinese Journal of Trauma 2019;35(4):332-339
Percutaneous vertebral augmentation is the most commonly used minimally invasive surgery in the treatment of osteoporotic vertebral compression fractures(OVCF).The efficacy and safety have been widely recognized,however,there are still some complications of percutaneous vertebral augmentation.And the most common complication is bone cement leakage,which can lead to nerve root and spinal cord injury,increase the risk of secondary fractures of adjacent vertebral,and even cause serious complications such as pulmonary embolism.The diagnosis,classification,hazard,influence factors and preventive measures of bone cement leakage in vertebral augmentation for OCVF are reviewed in this paper,which will provide reference for prevention and treatment of bone cement leakage in clinical practice.
4.Diversity analysis of archaeal and fungal communities in adjacent cucumber root soil samples in greenhouse by small-subunit rRNA gene cloning.
Zhixiang ZHAO ; Xiaofei LU ; Guohua CHEN ; Zhenchuan MAO ; Yuhong YANG ; Erming LIU ; Bingyan XIE
Chinese Journal of Biotechnology 2011;27(1):41-51
Soil archaea and fungi play important roles in the greenhouse soil ecosystem. To develop and apply rich microbial resources in greenhouse ecological environment, and to understand the interaction between microbes and plants, we constructed archaeal 16S rRNA and fungal 18S rRNA gene libraries to analyze the compositions of archaeal and fungal communities. Total greenhouse soil DNA was directly extracted and purified by skiving-thawing-lysozyme-proteinase K-SDS hot treatment and treatment of cetyltriethylammnonium bromide (CTAB). After PCR amplification, retrieving, ligating, transforming, screening of white clones, archaeal 16S rRNA and fungal 18S rRNA gene libraries were constructed. The sequences of archaea and fungi were defined into operational taxonomic units (OTUs) when 97% similarity threshold for OTU assignment was performed by using the software DOTUR. Phylogenetic analysis showed that crenarchaeota and unidentified-archaea were the two major sub-groups and only a few of euryarchaeota existed in the archaeal clone library, total 45 OTUs. All the crenarchaeota belonged to thermoprotei; except for Basidiomycotina, the other four sub-group fungi were discovered in the fungal library, total 24 OTUs. The diversities of archaea were very abundant and a few euryarchaeota (methanebacteria) existed in the archaeal clone library, it might be directly related to the long-term high temperature, high humidity, and high content of organic matter. The limitation of oxygen was the other reason for causing this phenomenon; Ascomycotina (over 80%) was the dominant sub-groups in fungal library. It was because most of the plant fungal diseases belonged to soil-borne diseases which gone through the winter by the ways of scierotium or perithecium and became the sources of primary infection.
Archaea
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genetics
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growth & development
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Biodiversity
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Cloning, Molecular
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Cucumis sativus
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growth & development
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Fungi
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genetics
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growth & development
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Gene Library
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Genes, rRNA
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Microclimate
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Phylogeny
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Plant Roots
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microbiology
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RNA, Archaeal
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genetics
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RNA, Fungal
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genetics
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RNA, Ribosomal, 16S
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genetics
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RNA, Ribosomal, 18S
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genetics
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Soil Microbiology