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Modified Generalized Degree Distance of Some Graph Operations
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作者 Shengmei Lv 《Advances in Pure Mathematics》 2018年第6期548-558,共11页
The modified generality degree distance, is defined as: ,?which is a modification of the generality degree distance. In this paper, we give some computing formulas of the modified generality degree distance of some gr... The modified generality degree distance, is defined as: ,?which is a modification of the generality degree distance. In this paper, we give some computing formulas of the modified generality degree distance of some graph operations, such as, composition, join, etc. 展开更多
关键词 DEGREE DISTANCE modified GENERALIZED DEGREE DISTANCE GRAPH operations
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Extracorporeal membrane oxygenation in curing a young man after modified Fontan operation:A case report
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作者 He-Bing Guo Jian-Bo Tan +11 位作者 Yong-Chao Cui Hao-Feng Xiong Chuan-Sheng Li Yu-Feng Liu Yao Sun Lin Pu Pan Xiang Ming Zhang Jing-Jing Hao Ning-Ning Yin Xiao-Tong Hou Jing-Yuan Liu 《World Journal of Clinical Cases》 SCIE 2022年第29期10614-10621,共8页
BACKGROUND The Fontan operation is the only treatment option to change the anatomy of the heart and help improve patients’ hemodynamics.After successful operation,patients typically recover the ability to engage in g... BACKGROUND The Fontan operation is the only treatment option to change the anatomy of the heart and help improve patients’ hemodynamics.After successful operation,patients typically recover the ability to engage in general physical activity.As a better ventilatory strategy,extracorporeal membrane oxygenation(ECMO) provides gas exchange via an extracorporeal circuit,and is increasingly being used to improve respiratory and circulatory function.After the modified Fontan operation,circulation is different from that of patients who are not subjected to the procedure.This paper describe a successful case using ECMO in curing influenza A infection in a young man,who was diagnosed with Tausing-Bing syndrome and underwent Fontan operation 13 years ago.The special cardiac structure and circulatory characteristics are explored in this case.CASE SUMMARY We report a successful case using ECMO in curing influenza A infection in a 23-year-old man,who was diagnosed with Tausing-Bing syndrome and underwent Fontan operation 13 years ago.The man was admitted to the intensive care unit with severe acute respiratory distress syndrome as a result of influenza A infection.He was initially treated by veno-venous(VV) ECMO,which was switched to veno-venous-arterial ECMO(VVA ECMO) 5 d later.As circulation and respiratory function gradually improved,the VVA ECMO equipment was removed on May 1,2018.The patient was successfully withdrawn from artificial ventilation on May 28,2018 and then discharged from hospital on May 30,2018.CONCLUSION After the modified Fontan operation,circulation is different compared with that of patients who are not subjected to the procedure.There are certainly many differences between them when they receive the treatment of ECMO.Due to the special cardiac structure and circulatory characteristics,an individualized liquid management strategy is necessary and it might be better for them to choose an active circulation support earlier. 展开更多
关键词 Acute respiratory distress syndrome Extracorporeal membrane oxygenation modified Fontan operation Tausing-Bing syndrome Case report
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Modified Appleby operation for carcinoma of the pancreatic body and tail
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作者 Dongfang Huang 《Oncology and Translational Medicine》 2020年第4期182-184,共3页
This is a case of a pancreatic tumor with invasion of the celiac stem treated using the modified Appleby operation.Preoperatively,routine B-ultrasound,computed tomography,and magnetic resonance imaging were performed.... This is a case of a pancreatic tumor with invasion of the celiac stem treated using the modified Appleby operation.Preoperatively,routine B-ultrasound,computed tomography,and magnetic resonance imaging were performed.In the perioperative period,the combined gallbladder was excised;the duration of the operation was 5 h and volume of blood loss was approximately 500 ml.Postoperatively,the liver function temporarily returned and after a liver protection treatment,it returned to normal within 2 weeks.The liver had normal arterial blood supply,and the postoperative course was uneventful.It is safe and feasible to resect the whole pancreatic body and tail tumor combined with celiac stem resection.It can improve the resection rate of tumor and relieve pain. 展开更多
关键词 modified Appleby operation pancreas cancer
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Modified Foerster-Dandy 's operation for treatment of spasmodic torticollis under endoscope-assisting
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作者 刘江 《外科研究与新技术》 2011年第3期218-218,共1页
Objective To study microsurgical effectiveness Foerster-Dandy’s endoscope-assisted operation for treatment of spasmodic torticollis. Methods 183 cases of spasmodic torticollis patients were treated by microsurgical m... Objective To study microsurgical effectiveness Foerster-Dandy’s endoscope-assisted operation for treatment of spasmodic torticollis. Methods 183 cases of spasmodic torticollis patients were treated by microsurgical modified Foerster-Dandy’s operation from July 2001 to June 2009,which was randomly 展开更多
关键词 modified Foerster-Dandy s operation for treatment of spasmodic torticollis under endoscope-assisting
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A NOTE ON MODIFIED BASKAKOV TYPE OPERATORS 被引量:7
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作者 Vijay Gupta 《Analysis in Theory and Applications》 1994年第3期74-78,共5页
In the present paper, we define a new kind of positive linear operators and study the rate of convergence in simultaneous approximation. This operator being capable of providing better approxima- tion than modified Ba... In the present paper, we define a new kind of positive linear operators and study the rate of convergence in simultaneous approximation. This operator being capable of providing better approxima- tion than modified Baskakov operators. 展开更多
关键词 A NOTE ON modified BASKAKOV TYPE operATORS THAN
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ON THE CONVERGENCE OF THE MODIFIED SZASZ-MIRAKJAN OPERATOR 被引量:3
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作者 Sun Xiehua China Institute of Metrology, Hangzhou 《Analysis in Theory and Applications》 1994年第1期20-25,共6页
A necessary and sufficient condition of convergence for the modified Szasz-Mirakjan operator is estab- lished.
关键词 TH MATH ON THE CONVERGENCE OF THE modified SZASZ-MIRAKJAN operATOR LIM
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MODIFIED APPROXIMATE PROXIMAL POINT ALGORITHMS FOR FINDING ROOTS OF MAXIMAL MONOTONE OPERATORS
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作者 曾六川 《Applied Mathematics(A Journal of Chinese Universities)》 SCIE CSCD 2004年第3期293-301,共9页
In order to find roots of maximal monotone operators, this paper introduces and studies the modified approximate proximal point algorithm with an error sequence {e k} such that || ek || \leqslant hk || xk - [(x)\tilde... In order to find roots of maximal monotone operators, this paper introduces and studies the modified approximate proximal point algorithm with an error sequence {e k} such that || ek || \leqslant hk || xk - [(x)\tilde]k ||\left\| { e^k } \right\| \leqslant \eta _k \left\| { x^k - \tilde x^k } \right\| with ?k = 0¥ ( hk - 1 ) < + ¥\sum\limits_{k = 0}^\infty {\left( {\eta _k - 1} \right)} and infk \geqslant 0 hk = m\geqslant 1\mathop {\inf }\limits_{k \geqslant 0} \eta _k = \mu \geqslant 1 . Here, the restrictions on {η k} are very different from the ones on {η k}, given by He et al (Science in China Ser. A, 2002, 32 (11): 1026–1032.) that supk \geqslant 0 hk = v < 1\mathop {\sup }\limits_{k \geqslant 0} \eta _k = v . Moreover, the characteristic conditions of the convergence of the modified approximate proximal point algorithm are presented by virtue of the new technique very different from the ones given by He et al. 展开更多
关键词 modified approximate proximal point algorithm maximal monotone operator CONVERGENCE
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On Weighted Approximation by Modified Bernstein Operators for Functions with Singularities
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作者 Meiling Wang Dansheng Yu 《Analysis in Theory and Applications》 2014年第4期405-416,共12页
Della Vecchia et al. (see [2]) introduced a kind of modified Bernstein operators which can be used to approximate functions with singularities at endpoints on [0,1]. In the present paper, we obtain a kind of pointwi... Della Vecchia et al. (see [2]) introduced a kind of modified Bernstein operators which can be used to approximate functions with singularities at endpoints on [0,1]. In the present paper, we obtain a kind of pointwise Stechkin-type inequalities for weighted approximation by the modified Bemsetin operators. 展开更多
关键词 modified Bernstein operators weighted approximation Stechkin inequality.
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Multiplication and Translation Operators on the Fock Spaces for the q-Modified Bessel Function
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作者 Fethi Soltani 《Advances in Pure Mathematics》 2011年第4期221-227,共7页
We study the multiplication operator M by z2 and the q-Bessel operator Δq,αon a Hilbert spaces Fq,α of entire functions on the disk D( o, ) , 0qq,α into itself. Next, we study a generalized translation operators o... We study the multiplication operator M by z2 and the q-Bessel operator Δq,αon a Hilbert spaces Fq,α of entire functions on the disk D( o, ) , 0qq,α into itself. Next, we study a generalized translation operators on Fq,α . 展开更多
关键词 Generalized q-Fock Spaces q-Iα modified BESSEL Function q-Bessel operATOR MULTIPLICATION operATOR q-Translation operators
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SOME APPROXIMATION THEOREMS FOR MODIFIED BERNSTEIN-DURRMEYER OPERATORS
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作者 Li Song (Zhejiang University,China) 《Analysis in Theory and Applications》 1994年第4期1-12,共12页
The modified Bernstein-Durrmeyer operators discussed in this paper are given by M_nf≡M_n(f,x)=(n+2)P_(n,k)∫_0~1p_n+1.k(t)f(t)dt, where We will show,for 0<α<1 and 1≤p≤∞ M,f-f_p=O(n^-a)ω_Φ~2(f,t)_p=O(t^(2a... The modified Bernstein-Durrmeyer operators discussed in this paper are given by M_nf≡M_n(f,x)=(n+2)P_(n,k)∫_0~1p_n+1.k(t)f(t)dt, where We will show,for 0<α<1 and 1≤p≤∞ M,f-f_p=O(n^-a)ω_Φ~2(f,t)_p=O(t^(2a)), |M_n f-f(x)|≤M(x(1-x)/n+1/_n2)~a/2ω(f,t)=O(t^a), where otherwise. 展开更多
关键词 WILL SOME APPROXIMATION THEOREMS FOR modified BERNSTEIN-DURRMEYER operATORS IIM 气刀 show
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Modified Double Zeta Function and Its Properties
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作者 Arif M. Khan 《Advances in Pure Mathematics》 2016年第3期159-167,共9页
The present paper aims at introducing and investigating a new class of generalized double zeta function i.e. modified double zeta function which involves the Riemann, Hurwitz, Hurwitz-Lerch, Barnes double zeta functio... The present paper aims at introducing and investigating a new class of generalized double zeta function i.e. modified double zeta function which involves the Riemann, Hurwitz, Hurwitz-Lerch, Barnes double zeta function and Bin-Saad generalized double zeta function as particular cases. The results are obtained by suitably applying Riemann-Liouville type and Tremblay fractional integral and differential operators. We derive the expansion formula for the proposed function with some of its properties via fractional operators and discuss the link with known results. 展开更多
关键词 modified Zeta Function Riemann-Liouville operator Tremblay Fractional operators Hypergeometric Function
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Modified Wide-angle Beam Propagation Method Using Douglas Operators
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作者 JU Zhenle,FU Junmei,FENG Enxin (Lab. of Microwave Eng. and Opt. Commun.Tech.,Xi’an Jiaotong University,Xi’an 710049,CHN) 《Semiconductor Photonics and Technology》 CAS 1997年第4期269-273,共5页
ModifiedWide-angleBeamPropagationMethodUsingDouglasOperators①JUZhenle,FUJunmei,FENGEnxin(Lab.ofMicrowaveEng.... ModifiedWide-angleBeamPropagationMethodUsingDouglasOperators①JUZhenle,FUJunmei,FENGEnxin(Lab.ofMicrowaveEng.andOpt.Commun.Tec... 展开更多
关键词 波导光子器 宽光束 光束传播法 道格拉斯算符
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Modified Kugel补片在腹股沟嵌顿疝修补术中的应用28例 被引量:1
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作者 曾荻洵 任波 +1 位作者 向君华 陈建军 《中国医药导报》 CAS 2011年第12期151-152,共2页
目的:探讨Modified Kugel补片治疗腹股沟嵌顿疝的技术要点,评价其效果。方法:回顾性分析国防科大医院2005年4月~2010年1月应用Modified Kugel补片手术治疗腹股沟嵌顿疝28例患者临床资料。结果:平均手术时间为58 min,术后平均住院日为7.... 目的:探讨Modified Kugel补片治疗腹股沟嵌顿疝的技术要点,评价其效果。方法:回顾性分析国防科大医院2005年4月~2010年1月应用Modified Kugel补片手术治疗腹股沟嵌顿疝28例患者临床资料。结果:平均手术时间为58 min,术后平均住院日为7.5 d,术后恢复快,并发症少、轻,随访6~48个月,无复发。结论:Modified Kugel补片治疗腹股沟嵌顿疝是一种安全可靠、并发症少、复发率低的修补方式,尤其适宜于腹横筋膜薄弱或缺损较重的患者。 展开更多
关键词 modified KUGEL补片 腹股沟嵌顿疝 手术
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改良Ivor-Lewis术在食管癌根治术中的应用 被引量:4
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作者 龙永贵 李远平 刘凌曦 《胃肠病学和肝病学杂志》 CAS 2015年第12期1485-1489,共5页
目的探讨改良Ivor-Lewis食管癌根治术治疗食管癌的疗效及安全性,以及对患者预后的影响。方法前瞻性选取乐山市人民医院胸心外科于2010年1月-2013年1月收治的120例手术治疗的食管癌患者,根据手术方式将其分为两组,对照组行颈胸腹三切口... 目的探讨改良Ivor-Lewis食管癌根治术治疗食管癌的疗效及安全性,以及对患者预后的影响。方法前瞻性选取乐山市人民医院胸心外科于2010年1月-2013年1月收治的120例手术治疗的食管癌患者,根据手术方式将其分为两组,对照组行颈胸腹三切口食管癌根治术,研究组行改良Ivor-Lewis食管癌根治术,对比分析两组患者手术时间、术中出血量、淋巴结清扫数目、住院时间、并发症发生率以及预后情况。结果研究组手术时间、出血量、补液量均少于对照组(P<0.05),术中淋巴结清扫数明显多于对照组(P<0.05),术后住ICU时间、带鼻胃管时间、经口进食时间、住院时间均明显短于对照组(P<0.05);研究组切缘阳性率明显低于对照组(χ2=4.1379,P=0.0419);研究组患者术后心律失常、肺部感染、喉返神经损伤、吻合口瘘、乳糜胸、胃潴留、切口感染、脓胸、呼吸衰竭等并发症发生率明显低于对照组(χ2=4.4829,P=0.0342);随访期间,对照组3例死亡,2例肝转移、1例两肺转移、1例纵膈及腹膜后淋巴结转移,研究组1例死亡,1例肝转移、1例腹膜后转移,其余患者均无瘤生存。结论改良Ivor-Lewis食管癌根治术手术时间短、减少术中出血量、促进患者术后早期恢复,降低术后并发症发生率,改善患者的预后,是一种疗效确切且安全性高的手术方式,可作为临床治疗胸中下段食管癌首选术式之一。 展开更多
关键词 食管癌 改良ivor-lewis 疗效 预后
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改良Ivor-Lewis手术治疗62例胸中下段食管鳞癌的疗效分析 被引量:1
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作者 王彪 唐震 +3 位作者 刘学刚 王祖义 李小军 贡会源 《实用癌症杂志》 2013年第6期639-642,共4页
目的探讨改良Ivor-Lewis手术治疗胸中下段食管鳞癌的临床疗效。方法回顾性分析62例采用改良Ivor-Lewis手术治疗的胸中下段食管鳞癌患者的临床资料。生存率计算采用Kaplan-Meier方法。结果术后10例出现并发症,占16.1%。死亡2例,占3.2%。... 目的探讨改良Ivor-Lewis手术治疗胸中下段食管鳞癌的临床疗效。方法回顾性分析62例采用改良Ivor-Lewis手术治疗的胸中下段食管鳞癌患者的临床资料。生存率计算采用Kaplan-Meier方法。结果术后10例出现并发症,占16.1%。死亡2例,占3.2%。淋巴结转移率58.0%,上纵隔转移率最低(16.5%),下纵膈转移率最高(40.9%)。全组平均生存时间为(52.06±3.21)个月,3、5年生存率分别为52.2%、24.5%。Ⅰ、Ⅱ、Ⅲ期患者3、5年生存率分别为93.4%和70.5%、49.3%和27.5%、36.2%和12.6%。结论改良Ivor-Lewis手术具有良好的手术视野,淋巴结清扫彻底的优点,可减少术后并发症,提高患者生存期,是治疗胸中下段食管鳞癌较理想的手术方式。 展开更多
关键词 改良Ivor—Lewis 食管癌 手术
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Modeling on a Modified Feeding Mode of Simulated Moving Bed for Improving Productivity 被引量:4
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作者 危凤 沈波 +2 位作者 陈明杰 赵迎宪 邵立平 《Chinese Journal of Chemical Engineering》 SCIE EI CAS CSCD 2010年第2期239-243,共5页
A new feeding mode for a simulated moving bed(SMB) is proposed.The outlet stream from zone II is collected at regular intervals.The concentration of the solution is increased by dissolving raw materials and then fed t... A new feeding mode for a simulated moving bed(SMB) is proposed.The outlet stream from zone II is collected at regular intervals.The concentration of the solution is increased by dissolving raw materials and then fed to zone III as the feed stream during the next collection interval.In this feeding mode,the concentration of the stream fed to zone III is identical to that of original feed,while in a conventional SMB,the feed is diluted by mix-ing with the outlet stream of zone II before feeding to zone III.The new feeding mode increases the inlet concentra-tion of zone III.A modeling investigation shows that higher inlet concentration of zone III increases the height of concentration band in SMB,improving the separation performance significantly.In comparison with the traditonal feeding mode,the new feeding mode increases the productivity by 23.52%and decreases the solvent consumption by 22.56%,so as to increase the raffinate and extract concentrations by 53.17%and 20.38%,respectively.The col-lection interval for the outlet stream from zone II has no effect on the separation performance after reaching the steady state,so that the collection interval can be increased to make the operation more convenient. 展开更多
关键词 模拟移动床 饲养模式 生产力 改性 混合饲料 中小企业 分离性能 喂养方式
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带立方非线性修正Camassa-Holm方程的初值问题
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作者 张欣 吴兴龙 《数学物理学报(A辑)》 CSCD 北大核心 2024年第2期376-383,共8页
该文利用Kato半群理论和耗散算子的定义,研究了带立方非线性修正Camassa-Holm方程的初值问题,并在Sobolev空间H^(s,p)(R)(s≥1,p∈(1,∞))中建立了其解的存在唯一性,推广了Fu等在Besov空间B_(p,r)^(s)(R)(p,r≥1,s>max{2+1/p,5/2})... 该文利用Kato半群理论和耗散算子的定义,研究了带立方非线性修正Camassa-Holm方程的初值问题,并在Sobolev空间H^(s,p)(R)(s≥1,p∈(1,∞))中建立了其解的存在唯一性,推广了Fu等在Besov空间B_(p,r)^(s)(R)(p,r≥1,s>max{2+1/p,5/2})中所得到的适定性结果(J Differ Equations,2013,255:1905-1938). 展开更多
关键词 修正Camassa-Holm方程 适定性 耗散算子 Kato半群理论
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腹腔镜改良Soave短肌鞘术式治疗小儿先天性巨结肠的疗效、安全性及对排便功能的影响
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作者 邓富强 李艺域 方志伟 《临床外科杂志》 2024年第6期616-619,共4页
目的 观察腹腔镜改良Soave短肌鞘术式治疗小儿先天性巨结肠(HD)的临床疗效、安全性及对排便功能的影响。方法 我院2018年1月~2023年5月收治的HD患儿91例,按照随机数字表法分为观察组(腹腔镜改良Soave短肌鞘术式,41例)和对照组(传统腹腔... 目的 观察腹腔镜改良Soave短肌鞘术式治疗小儿先天性巨结肠(HD)的临床疗效、安全性及对排便功能的影响。方法 我院2018年1月~2023年5月收治的HD患儿91例,按照随机数字表法分为观察组(腹腔镜改良Soave短肌鞘术式,41例)和对照组(传统腹腔镜Soave巨结肠根治术,50例)。比较两组患儿的手术时间、术中出血量、术后排便时间、术后住院时间、切除肠管长度以及术前灌肠时间,比较两组患儿手术前后白细胞计数(WBC)和C反应蛋白(CRP)水平,比较两组患儿术后12小时、24小时、36小时、48小时的疼痛评分,比较两组患儿术后排便功能和术后并发症发生情况。结果 观察组患儿手术时间(134.07±22.08)分钟、术中出血量(5.17±0.87)ml、术后排便时间(2.10±0.32)天、术后住院时间(7.59±1.25)天、切除肠管长度(15.24±2.25)厘米以及术前灌肠时间(13.61±2.14)分钟均少于短于对照组[(159.78±25.44)分钟、(7.61±1.41)ml、(2.46±0.53)天、(10.59±1.84)天、(16.67±2.54)厘米、(16.44±2.57)分钟],差异有统计学意义(P<0.05);手术后两组患儿血清WBC、CRP水平均上升,但观察组血清WBC、CRP水平低于对照组,差异有统计学意义(P<0.05);观察组患儿在术后12小时、24小时、36小时、48小时的疼痛评分(3.42±0.69、3.17±0.64、2.52±0.58、2.06±0.53)均低于对照组(4.47±0.76、3.78±0.72、3.31±0.66、2.83±0.64),差异有统计学意义(P<0.05);两组患儿术后排便功能比较,差异无统计学意义(P>0.05);观察组患儿术后并发症总发生率为17.07%,低于对照组的34.00%,差异有统计学意义(P<0.05)。结论 应用腹腔镜改良Soave短肌鞘术治疗HD,可改善各临床指标和排便功能,缓解术后疼痛,降低感染程度,减少术后并发症,安全性更高。 展开更多
关键词 腹腔镜改良Soave短肌鞘术式 先天性巨结肠 传统腹腔镜Soave巨结肠根治术 排便功能 并发症
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81例改良Bacon术后外置肠管缺血坏死发生情况及对策分析
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作者 王玉行 胡军红 +2 位作者 李国宾 常远 张振飞 《中国临床新医学》 2024年第5期496-500,共5页
目的探讨改良Bacon术后外置肠管缺血坏死发生情况和相关因素以及处理措施。方法回顾性分析2018年11月至2024年3月郑州大学第一附属医院收治的81例低位直肠癌患者的临床资料。81例患者中伴外置肠管缺血坏死8例,不伴外置肠管缺血坏死73例... 目的探讨改良Bacon术后外置肠管缺血坏死发生情况和相关因素以及处理措施。方法回顾性分析2018年11月至2024年3月郑州大学第一附属医院收治的81例低位直肠癌患者的临床资料。81例患者中伴外置肠管缺血坏死8例,不伴外置肠管缺血坏死73例。记录改良Bacon术后外置肠管缺血坏死发生情况及处理措施,分析影响改良Bacon术外置肠管缺血坏死的相关因素。结果术后发生并发症20例(24.69%),外置肠管缺血坏死8例中,3例出现腹膜炎急诊行乙状结肠造口术,5例患者外置肠管坏死在肛缘附近,无局部和全身症状,保守治疗成功;吻合口狭窄12例均行扩肛治疗。无切口感染、吻合口漏及术后30 d内死亡病例。年龄、体质量指数(BMI)、括约肌张力状态和直肠系膜张力状态与外置肠管缺血坏死具有关联性(P<0.05)。结论改良Bacon术后外置肠管缺血坏死的相关因素包括年龄、BMI、括约肌张力状态和直肠系膜张力状态。患者的选择、术前充分扩肛以及肉毒素注射、术后定期观察是预防外置肠管缺血坏死的有效措施。 展开更多
关键词 低位直肠癌 改良BACON术 外置肠管缺血坏死
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腹腔镜外翻拖出式经括约肌间切除联合改良Bacon术在低位直肠癌超低位保肛中的应用(附6例报道)
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作者 李佳泽 王五艺 +5 位作者 芮元祎 易波 陈超 冯晓沛 张竞博 郑阳春 《中国临床新医学》 2024年第5期491-495,共5页
目的探讨腹腔镜外翻拖出式经括约肌间切除(ISR)联合改良Bacon术在低位直肠癌超低位保肛中的应用。方法回顾性分析2023年3月至12月四川省肿瘤医院大肠外科采用外翻拖出式ISR联合改良Bacon术进行腹腔镜根治性切除、超低位保肛的6例低位直... 目的探讨腹腔镜外翻拖出式经括约肌间切除(ISR)联合改良Bacon术在低位直肠癌超低位保肛中的应用。方法回顾性分析2023年3月至12月四川省肿瘤医院大肠外科采用外翻拖出式ISR联合改良Bacon术进行腹腔镜根治性切除、超低位保肛的6例低位直肠癌患者的临床资料,探讨近期临床效果,总结手术技巧。结果6例患者均顺利完成手术,手术时间200~320 min,平均256.7 min;术中失血量20~100 mL,平均48.3 mL。术后1例患者出现外置肠段脱垂,行再次手术切除;2例患者出现外置肠段系膜局部缺血,行保守治疗后好转。所有患者均顺利恢复,术后6~11 d出院,平均术后住院时间8.2 d。所有患者均于术后21 d施行二期外置肠段切除和肛门成形术,术后3~6 d好转出院,平均术后住院时间4.3 d。随访至2024年3月,所有患者无肿瘤复发或转移,二期术后3个月Wexner肛门失禁评分1~5分,平均3.2分,肛门控便功能满意。结论腹腔镜外翻拖出式ISR联合改良Bacon术有助于实现肿瘤远端的精准切除,能极大降低经肛切除的操作难度,而且避免了预防性肠造口,术后肛门功能满意,有望成为低位直肠癌行超低位保肛手术的新选择。 展开更多
关键词 低位直肠癌 腹腔镜 经括约肌间切除 改良BACON术 超低位保肛
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