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Micro-power negative pressure wound technique reduces risk of incision infection following loop ileostomy closure
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作者 Deng-Yong Xu Bing-Jun Bai +4 位作者 Lina Shan Hui-Yan Wei Deng-Feng Lin Ya Wang Da Wang 《World Journal of Gastrointestinal Surgery》 SCIE 2024年第1期186-195,共10页
BACKGROUND Prophylactic loop ileostomy is an effective way to reduce the clinical severity of anastomotic leakage following radical resection of rectal cancer.Incisional surgical site infection(SSI)is a common complic... BACKGROUND Prophylactic loop ileostomy is an effective way to reduce the clinical severity of anastomotic leakage following radical resection of rectal cancer.Incisional surgical site infection(SSI)is a common complication after ileostomy closure.AIM To evaluate the efficacy and safety of the micro-power negative pressure wound technique(MPNPWT)in preventing incisional SSI.METHODS This was a prospective,randomized controlled clinical trial conducted at a single center.A total of 101 consecutive patients who underwent ileostomy closure after rectal cancer surgery with a prophylactic ileostomy were enrolled from January 2019 to December 2021.Patients were randomly allocated into an MPNPWT group and a control group.The MPNPWT group underwent intermittent suturing of the surgical incision with 2-0 Prolene and was covered with a micro-power negative pressure dressing.The surgical outcomes were compared between the MPNPWT(n=50)and control(n=51)groups.Risk factors for incisional SSI were identified using logistic regression.RESULTS There were no differences in baseline characteristics between the MPNPWT(n=50)and control groups(n=51).The incisional SSI rate was significantly higher in the control group than in the MPNPWT group(15.7%vs 2.0%,P=0.031).However,MPNPWT did not affect other surgical outcomes,including intra-abdominal complications,operative time,and blood loss.Postoperative hospital stay length and hospitalization costs did not differ significantly between the two groups(P=0.069 and 0.843,respectively).None of the patients experienced adverse effects of MPNPWT,including skin allergy,dermatitis,and pain.MPNPWT also helped heal the infected incision.Our study indicated that MPNPWT was an independent protective factor[odds ratio(OR)=0.005,P=0.025)]and diabetes was a risk factor(OR=26.575,P=0.029)for incisional SSI.CONCLUSION MPNPWT is an effective and safe way to prevent incisional SSI after loop ileostomy closure. 展开更多
关键词 Micro-power negative pressure technique Ileostomy closure Incisional surgical site infection Infection prevention Postoperative incision
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To investigate the clinical effect of modified closed negative pressure suction technique combined with flap transplantation on the treatment of deep chronic refractory wounds
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作者 Zhihui Hou Mingjuan Gu 《Discussion of Clinical Cases》 2019年第1期11-14,共4页
Objective:To investigate the clinical effect of modified closed negative pressure suction technique combined with flap transplantation on the treatment of deep chronic refractory wounds.Methods:During March of 2015 to... Objective:To investigate the clinical effect of modified closed negative pressure suction technique combined with flap transplantation on the treatment of deep chronic refractory wounds.Methods:During March of 2015 to April of 2018,52 cases of patients with deep chronic refractory wounds were selected as research objects.They were divided into the control group and the treatment group by use of the random number table method,with 26 cases in each group.Among them,the control group was given conventional debridement combined with flap reconstruction,and the treatment group was treated with modified closed negative pressure suction technique combined with flap transplantation to observe the clinical effect.Results:(1)According to the analysis on the effect of flap transplantation,the excellent and good rate of the treatment group was 92.3%,and in the control group,it was 76.9%(p<0.05).(2)According to the statistics,the incidence of complications in the treatment group was lower than that in the control group(p<0.05).Conclusions:Modified closed negative pressure suction technique combined with flap transplantation has a good effect on the treatment of deep chronic refractory wounds with fewer complications. 展开更多
关键词 Modified closed negative pressure suction technique Flap transplantation Deep chronic refractory wounds
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Slow-pull and different conventional suction techniques in endoscopic ultrasound-guided fine-needle aspiration of pancreatic solid lesions using 22-gauge needles 被引量:3
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作者 Jia-Ying Chen Qing-Yu Ding +4 位作者 Yang Lv Wen Guo Fa-Chao Zhi Si-De Liu Tian-Ming Cheng 《World Journal of Gastroenterology》 SCIE CAS 2016年第39期8790-8797,共8页
AIM To evaluate the cytological diagnostic capacity and sample quality of the slow-pull technique and compare them with different suction techniques.METHODS From July 2010 to December 2015, 102 patients with pancreati... AIM To evaluate the cytological diagnostic capacity and sample quality of the slow-pull technique and compare them with different suction techniques.METHODS From July 2010 to December 2015, 102 patients with pancreatic solid lesions who underwent endoscopic ultrasound-guided fine-needle aspiration(EUS-FNA) with 22-gauge needles were retrospectively evaluated. EUS-FNA diagnosis was based on a cytological examination, and final diagnosis was based on a comprehensive standard of cytological diagnosis, surgical pathology and clinical or imaging follow-up. Cytological specimens were characterized for cellularity and blood contamination. The cytological diagnostic capacity and sample quality of the slow-pull technique and suction techniques with 5-m L/10-m L/20-m L syringes were analyzed.RESULTS Of all of the EUS-FNA procedures, the slow-pull technique and suction techniques with 5-m L/10-m L/20-m L syringes were used in 31, 19, 34 and 18 procedures, respectively. There were significant differences between these four suction techniques in terms of cytological diagnostic accuracy(90.3% vs 63.2% vs 58.8% vs 55.6%, P = 0.019), sensitivity(88.2% vs 41.7% vs 40.0% vs 36.4%, P = 0.009) and blood contamination(score ≥ 2 for 29.0% vs 52.6% vs 70.6% vs 72.2%, P = 0.003). The accuracy and sensitivity of the slow-pull technique were significantly higher than those of the suction techniques using 5-m L(P = 0.03, P = 0.014), 10-m L(P = 0.005; P = 0.006) and 20-mL syringes(P = 0.01, P = 0.01). Blood contamination was significantly lower in the slow-pull technique than in the suction techniques with 10-m L(P = 0.001) and 20-mL syringes(P = 0.007).CONCLUSION The slow-pull technique may increase the cytological diagnostic accuracy and sensitivity with slight blood contamination during EUS-FNA when using 22-gauge needles for solid pancreatic masses. 展开更多
关键词 Endoscopic ultrasound-guided fine-needle aspiration Pancreatic solid lesion Slow-pull technique SUCTION negative pressure CYTOLOGY
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The Unsaturated Hydraulic Parameters for Aeolian Sand 被引量:1
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作者 程东会 王文科 +1 位作者 李威 王会 《Agricultural Science & Technology》 CAS 2010年第2期1-3,共3页
The water characteristic curve for aeolian sand in two processes of wetting and drying was obtained by the negative water column technique.The values of fitting parameters were calculated according to Van Genuchten fo... The water characteristic curve for aeolian sand in two processes of wetting and drying was obtained by the negative water column technique.The values of fitting parameters were calculated according to Van Genuchten formula and the parameters that characterized the prosperities of aeolian sand such as the unsaturated infiltration coefficient and specific water capacity were obtained.The results showed that the water characteristic curve for aeolian sand in wetting process had greater hysteresis quality than ... 展开更多
关键词 negative water column technique Soil-wafer characteristic curve Wetting and drying Unsaturated infiltration coefficient Specific water capacity Aeolian sand
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撕裂灰色婚姻的面纱——解读池莉小说《云破处》的主题意韵及叙事手法
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作者 华丹 《宁波职业技术学院学报》 2005年第1期55-58,共4页
通过对池莉小说《云破处》的解读,揭示舒缓、平和、宁静生活所掩盖下的人生的灰色和真实,女性用其天生的破坏本能形成对男权秩序的有力冲击,进而撩开传统婚姻的真实面纱。
关键词 《云破处》 主题意韵 叙事手法
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撕裂灰色婚姻的面纱——解读池莉小说《云破处》的内涵及叙事
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作者 程瑛 《湖北职业技术学院学报》 2004年第2期32-34,共3页
文章通过对池莉小说《云破处》的解读,揭示舒缓、平和、宁静生活所掩盖下的人生的灰色和真实,认为它彻底否定了男权神话、推出了破坏性女性形象、告别了传统叙事手法。
关键词 池莉 小说评论 《云破处》 叙事手法 婚姻 男权 女性形象
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浅谈科技英语转移否定句的翻译 被引量:4
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作者 彭良林 王承菊 《中国科技翻译》 1998年第4期21-24,共4页
英语的否定分为一般否定和特指否定两种,前者指谓语部分的否定,而后者指的是谓语以外其它部分的否定,本文探讨了科技英语中转移否定现象,即:(1)从一般否定转移到特指否定,(2)从特指否定转移到一般否定。本文还探讨了科技英... 英语的否定分为一般否定和特指否定两种,前者指谓语部分的否定,而后者指的是谓语以外其它部分的否定,本文探讨了科技英语中转移否定现象,即:(1)从一般否定转移到特指否定,(2)从特指否定转移到一般否定。本文还探讨了科技英语中这类转移否定句的翻译技巧。 展开更多
关键词 一般否定 特指否定 转移 翻译
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Isolation and Identification of Multi-Drug Resistant Strains of Non-Lactose Fermenting Bacteria from Clinical Refuses in Major Hospitals of Khyber Pakhtunkhwa, Pakistan 被引量:1
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作者 Muhammad Zahid Minhas Akbar +9 位作者 Aftab Alam Sthanadar Pir Asmat Ali Mudassir Shah Iram Alam Sthanadar Muhammad Kaleem Muhammad Aslam Khayyam   Nasrullah   Muhammad Ismail Khan Syeda Mahreen Ul Hassan 《Open Journal of Medical Microbiology》 2014年第2期124-131,共8页
Purpose: The present studied was performed in order to investigate the drug resistance of different non-lactose fermenting gram negative bacteria from clinical isolates. The bacteria were morphologically characterized... Purpose: The present studied was performed in order to investigate the drug resistance of different non-lactose fermenting gram negative bacteria from clinical isolates. The bacteria were morphologically characterized through culturing and gram staining techniques were used for the identification of different bacterial strains. Methods: A total of 324 samples were collected from patients, after they were diagnosed by physicians at different hospitals at district Peshawar. Samples were morphologically identified by blood agar, MacConkey agar and Eosine Methylene Blue, identified by gram staining techniques. Modified Kirby-Bauer Disc diffusion method was used to test the in-vitro susceptibility of the identified isolates to different antibiotics. Results: The non-lactose fermenting gram negative bacteria were isolated from samples of blood (33.30%), pus/ wound (33.30%), urine (23.30%) and from ascetic/pleural fluids (10.20%). The study revealed that Pseudomonas aeroginosa showed high resistance against Gentamicin (74%) and Aztreonam (74%), followed by Ciprofloxacin (59.20%) and Amikacin (33.30). Tazocin was active as low resistance (18.50%) is shown. More resistance was seen in Morganella morganii against Aztreonam (77.7%) followed by Gentamicin (62.90%), Ciprofloxacin (40.70%). Tazocin show low resistance (3.70%). Multidrug resistant Proteus mirabillis was highly resistance to Gentamicin (66.60%), followed by Aztreonam (62.90%), Amikacin (55.50%), Ciprofloxacin (40.20%) and low resistance to Tazocin was (22.20%). Salmonella typhi demonstrated high resistance against Amikacin (62.90%), followed by Aztreonam (48.10%), Tazocin (40.70%). Gentamicin showed low resistance (29.60%), and hence it is more active against S. typhi. Conclusions: It can be concluded from the present study that different species of non-lactose fermenting gram negative bacteria have shown a different resistivity pattern. This study is a gate way for better and suitable management strategy for the infections caused by non-Lactose fermenting bacteria in the sampling region. 展开更多
关键词 MULTIDRUG Resistant Non-Lactose Fermenting GRAM negative BACTERIA Disc Diffusion technique
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AN EXTENSION OF ZOLOTAREV'S PROBLEM AND SOME RELATED RESULTS
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作者 Tran Loc HUNG Phan Tri KIEN 《Acta Mathematica Scientia》 SCIE CSCD 2021年第5期1619-1634,共16页
The main purpose of this paper is to extend the Zolotarev's problem concerning with geometric random sums to negative binomial random sums of independent identically distributed random variables.This extension is ... The main purpose of this paper is to extend the Zolotarev's problem concerning with geometric random sums to negative binomial random sums of independent identically distributed random variables.This extension is equivalent to describing all negative binomial infinitely divisible random variables and related results.Using Trotter-operator technique together with Zolotarev-distance's ideality,some upper bounds of convergence rates of normalized negative binomial random sums(in the sense of convergence in distribution)to Gamma,generalized Laplace and generalized Linnik random variables are established.The obtained results are extension and generalization of several known results related to geometric random sums. 展开更多
关键词 Zolotarev's problem geometric random sum negative binomial random sum negative binomial infinitely divisibility Trotter-operator technique
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Isolation and Identification of Multi-Drug Resistant Strains of Non-Lactose Fermenting Bacteria from Clinical Isolates
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作者 Minhas Akbar Muhammad Zahid +10 位作者 Pir Asmat Ali Aftab Alam Sthanadar Mudassir Shah Iram Alam Sthanadar Muhammad Kaleem Muhammad Aslam Khayyam   Zahirullah   Syeda Mahreen Ul Hassan Noor Jehan Muhammad Ismail Khan 《Open Journal of Medical Microbiology》 2014年第2期115-123,共9页
Purpose: We studied the drug resistance of different microbes from clinical isolates. The morphological characteristics of bacteria were observed through culture characteristics and by carrying out gram staining techn... Purpose: We studied the drug resistance of different microbes from clinical isolates. The morphological characteristics of bacteria were observed through culture characteristics and by carrying out gram staining techniques while the biochemical characteristics of bacteria were carried out by biochemical test. Methods: A total of 324 samples were collected from suspected patients visiting different hospitals at district Peshawar. For morphological identification, samples of clinical isolates were analyzed by blood agar, MacConkey agar and Eosine Methylene Blue, identified by gram staining and characterized by different biochemical tests. Antibiotic Sensitivity test by Modified Kirby-Bauer Disc diffusion method was used to test the in-vitro susceptibility of the identified isolates to different antibiotics such as Ceftazidime, Ceftazidime, Ceftriaxone, Cefepime and Imipenem. Results: These resistant non-lactose fermenting gram negative bacteria were isolated from samples of pus/wound (33.30%, n = 108/324), blood (33.30%, n = 108/324), urine (23.30%, n = 75/324) and from ascetic/pleural fluids (10.20%, n = 33/324). The study revealed that the percentage of non-fermenting bacterial infection was higher in females (53%) as compared to males (47%) along with higher infection observed in the age group of 11 - 30 years. Pseudomonas aeroginosa showed high resistance against Cefepime (88.80%), followed by Cefoperazone (55.50%), Ceftazidime (48.10%), Ceftriaxone (33.30%). Imipenem was active with low resistance (7.40%). More resistance was seen in Morganella morganii against Imipenem (66.70%) followed by Cefoperazone (55.50%), Ceftriaxone (55.50%). Cefepime showed low resistance (11%). Multi-drug resistant Proteus mirabillis was highly resistance to Ceftriaxone (74.07%), followed by Cefepime (59.20%), Cefoperazone (44.40%) and low resistance for Imipenem (25.90%). Salmonella typhi demonstrated high resistance against Imipenem (74.07%), followed by Ceftriaxone (40.70%), Ceftazidime (37.03%). Cefepime showed low resistance (3.70%), hence it is more active against S. typhi. Conclusions: The different species of non-lactose fermenting gram negative bacteria have shown a different resistivity pattern in the present study. Therefore identification of non-lactose fermenting gram negative bacteria and looking after their resistivity/susceptibility pattern are important for suitable management of the infections caused by them. 展开更多
关键词 MULTIDRUG Resistant Non-Lactose Fermenting GRAM negative BACTERIA Disc Diffusion technique
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Equilibrium Energy and Entropy of Vortex Filaments in the Context of Tornadogenesis and Tornadic Flows
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作者 Pavel Bělík Douglas P. Dokken +3 位作者 Mikhail M. Shvartsman Eric Bibelnieks Robert Laskowski Alek Lukanen 《Open Journal of Fluid Dynamics》 2023年第3期144-176,共33页
In this work, we study approximations of supercritical or suction vortices in tornadic flows and their contribution to tornadogenesis and tornado maintenance using self-avoiding walks on a cubic lattice. We extend the... In this work, we study approximations of supercritical or suction vortices in tornadic flows and their contribution to tornadogenesis and tornado maintenance using self-avoiding walks on a cubic lattice. We extend the previous work on turbulence by A. Chorin and collaborators to approximate the statistical equilibrium quantities of vortex filaments on a cubic lattice when both an energy and a statistical temperature are involved. Our results confirm that supercritical (smooth, “straight”) vortices have the highest average energy and correspond to negative temperatures in this model. The lowest-energy configurations are folded up and “balled up” to a great extent. The results support A. Chorin’s findings that, in the context of supercritical vortices in a tornadic flow, when such high-energy vortices stretch, they need to fold and transfer energy to the surrounding flow, contributing to tornado maintenance or leading to its genesis. The computations are performed using a Markov Chain Monte Carlo approach with a simple sampling algorithm using local transformations that allow the results to be reliable over a wide range of statistical temperatures, unlike the originally used pivot algorithm that only performs well near infinite temperatures. Efficient ways to compute entropy are discussed and show that a system with supercritical vortices will increase entropy by having these vortices fold and transfer their energy to the surrounding flow. 展开更多
关键词 Tornadogenesis Supercritical Vortices Vortex Filaments negative Temperature Kinetic Energy ENTROPY Statistical Mechanics Equilibrium Statistics Self-Avoiding Walks Cubic Lattice Monte-Carlo techniques Pivot Algorithm
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Mixed-integrator-based bi-quad cell for designing a continuous time filter
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作者 陈勇 周玉梅 《Journal of Semiconductors》 EI CAS CSCD 北大核心 2010年第4期109-112,共4页
A new mixed-integrator-based bi-quad cell is proposed. An alternative synthesis mechanism of complex poles is proposed compared with source-follower-based bi-quad cells which is designed applying the positive feedback... A new mixed-integrator-based bi-quad cell is proposed. An alternative synthesis mechanism of complex poles is proposed compared with source-follower-based bi-quad cells which is designed applying the positive feedback technique. Using the negative feedback technique to combine different integrators, the proposed bi-quad cell synthesizes complex poles for designing a continuous time filter. It exhibits various advantages including compact topology, high gain, no parasitic pole, no CMFB circuit, and high capability. The fourth-order Butterworth lowpass filter using the proposed cells has been fabricated in 0.18μm CMOS technology. The active area occupied by the filter with test buffer is only 200 × 170 μm^2. The proposed filter consumes a low power of 201 μW and achieves a 68.5 dB dynamic range. 展开更多
关键词 bi-quad cell negative feedback technique continuous time filter CMOS
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