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Punctured(2,1,N)系列卷积码的编码及其Viterbi译码的软件实现 被引量:7
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作者 袁东风 李作为 张锋 《山东大学学报(理学版)》 CAS CSCD 北大核心 2002年第1期48-53,共6页
给出了由 (2 ,1,N)系列卷积码作为母码产生的punctured卷积码的编码及其Viterbi译码的软件实现方法 ,从而为各种不同码率的卷积码的编、译码给出了一种通用的实现方法 。
关键词 punctured卷积码 移动衰落信道 多级编码分量码 差错控制 编码方法 punctured(2 1 n)系列卷积码 VITERBI译码 软件实现
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Aloin ameliorates cecal ligation and puncture-induced sepsis in mice by attenuating inflammation and modulating gut microbiota
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作者 Jingqian Su Jianbin Xiao +9 位作者 Siyuan Chen Heng Zhao Xiaoni Zhang Zhihua Feng Kunsen Chen Biyun Guan Wenzhi Chen Youqiang Chen Duo Chen Qi Chen 《Food Science and Human Wellness》 2025年第2期550-568,共19页
Most Aloe species are used as new food or functional food ingredient.Even though widely known for its health benefits,the anti-inflammatory effects and underlying mechanisms of Aloin(Alo),an anthraquinone compound iso... Most Aloe species are used as new food or functional food ingredient.Even though widely known for its health benefits,the anti-inflammatory effects and underlying mechanisms of Aloin(Alo),an anthraquinone compound isolated from plant species of the genus Aloe,remain unidentified.Here,we investigated the protective effects of Alo against cecal ligation and puncture(CLP)-induced sepsis and microflora in mice.Alo significantly improved CLP-induced sepsis and the survival rate of septic mice,downregulated the expression of proinflammatory factors,and decreased the infiltration of inflammatory cells in tissues.Alo upregulated the proportion of peritoneal macrophages,reduced the number of peritoneal bacteria,decreased the content of short-chain fatty acids and bile acids in the abdominal cavity,and suppressed Toll-like receptor(TLR)-2/4/nuclear factor kappa-B(NF-κB)/NOD-like receptor thermal protein domain associated protein 3(NLRP3)/Caspase-1/3/8 signaling.Furthermore,Alo altered the composition of the microbiome and promoted the growth of Lactobacillus,which showed a stronger anti-inflammatory effect.Whole-genome analysis identified the genes Saa3,Il10,Fpr1,and Eif4a1 associated with the protective effects of Alo in mice with CLP-induced sepsis.Overall,our results provide novel insights into the therapeutic potential and mechanism of action of Alo in the treatment of sepsis. 展开更多
关键词 ALOIN Gut microbiome SEPSIS INFLAMMATION Cecal ligation and puncture
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Uptake of lumbar puncture and mortality among patients with advanced human immunodeficiency virus disease who screened for serum cryptococcal-antigen in Africa
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作者 Haji Mbwana Ally Hafidha Mhando Bakari +9 位作者 Jackline Vicent Mbishi Zuhura Mbwana Ally Mariam Salim Mbwana Lynn Moshi Rahma Musoke Swalehe Mustafa Salim Hassan Fredrick Fussi Aboubakar Omar Mustafa John Bartlet Habib Omari Ramadhani 《World Journal of Virology》 2025年第2期165-179,共15页
BACKGROUND The World Health Organization(WHO)recommends lumbar puncture(LP)procedures to assess the diagnosis of cryptococcal meningitis(CM)among patients with advanced human immunodeficiency virus(HIV)disease(AHD)wit... BACKGROUND The World Health Organization(WHO)recommends lumbar puncture(LP)procedures to assess the diagnosis of cryptococcal meningitis(CM)among patients with advanced human immunodeficiency virus(HIV)disease(AHD)with positive serum cryptococcal antigen(CrAg)and do not have evidence of CM.AIM To estimate pooled prevalence of uptake of LP,CM and mortality among patients with AHD.METHODS PubMed,Cochrane Library and EMBASE were searched for articles published between January 2011 and December 2024.LP uptake was defined as percentage of people who underwent LP procedures among those with AHD(CD4≤200 cells/mm3 or WHO stage III/IV)and positive serum CrAg.Using random effects models,we computed the pooled estimate of LP uptake,CM and mortality and 95%CI.Stratified analyses were used to compare uptake of LP between studies that involved multiple vs single sites,and mortality analyses between patients with positive and negative serum CrAg were performed.Sensitivity analysis on LP uptake was done by excluding prospective cohort studies that reported 100%uptake.RESULTS A total of 32 studies with 46890 people with AHD screened for serum CrAg and 2730(5.8%)had positive serum CrAg.Overall,pooled prevalence of LP uptake was 67.7%(95%CI:54.0-81.5).The overall pooled prevalence of CM was 54.3%(95%CI:39.7-69.0),and mortality was 6.2%(95%CI:4.5-8.0).There is disparities in the pooled prevalence of LP uptake with studies involving multiple sites having lower prevalence compared to those that involved single sites(54.8%vs 84.7%,P=0.004).By excluding prospective cohort studies that reported 100%uptake,the overall LP uptake was 54.5%(95%CI:38.8-70.1).The pooled prevalence of CM was significantly lower among studies that involved multiple sites compared to those that involved single sites(6.8%vs 8.1%,P≤0.001).Mortality was significantly twice as high among patients who had positive serum CrAg compared to those who had negative serum CrAg[risk ratio=2.0(95%CI:1.6-2.5),P≤0.001].CONCLUSION Nearly three to five in 10 people with AHD with positive serum CrAg did not have LP procedures done,indicating significant gaps in identifying patients with CM.Establishing a confirmed diagnosis of CM is critical to avoid exposing patients to subtherapeutic levels of antifungals preemptively.Capacity to perform LP and patient refusals are among the reasons for not performing the procedure.Capacity building in training health care providers to perform LP procedures and professional counselling to obtain patient consent are critical for appropriate treatment to reduce mortality associated with CM infection. 展开更多
关键词 Lumbar puncture uptake Cryptococcal antigen Advanced human immunodeficiency virus disease MORTALITY AFRICA
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A Randomized Controlled Study of Combined Spinal-Epidural Analgesia Using a 25G Fine Needle Single Puncture in Children
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作者 Zheng Sun Hongdi Zheng 《Journal of Clinical and Nursing Research》 2025年第12期293-300,共8页
Objective:To investigate the efficacy and safety of combined spinal-epidural(CSE)anesthesia using a 25G spinal fine needle via a single puncture for lower limb surgery in children.Methods:Sixty pediatric patients sche... Objective:To investigate the efficacy and safety of combined spinal-epidural(CSE)anesthesia using a 25G spinal fine needle via a single puncture for lower limb surgery in children.Methods:Sixty pediatric patients scheduled for surgery were randomly divided into two groups,with 30 patients in each.The control group received subarachnoid anesthesia with 2–2.5 mL of 0.33%ropivacaine.The experimental group received the same ropivacaine dose,followed by withdrawal of the needle to the epidural space and administration of 0.1 mg hydromorphone diluted to 5 mL.The anesthetic and analgesic effects,incidence of complications,and postoperative family satisfaction were observed in both groups.Results:Compared with the control group,the experimental group showed a higher anesthesia success rate,a shorter onset time,and a longer maintenance time of anesthesia(p<0.05).Postoperative analgesia at various time points was significantly better in the experimental group(p<0.05).The total incidence of complications was lower in the experimental group,though the difference was not statistically significant(p>0.05).Family satisfaction was significantly higher in the experimental group(p<0.05).Conclusion:CSE anesthesia using a 25G fine needle via a single puncture for pediatric lower limb surgery is safe and effective.It can significantly improve surgical outcomes and is worthy of clinical promotion. 展开更多
关键词 25G fine needle single puncture CHILDREN Combined spinal-epidural anesthesia HYDROMORPHONE
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Fever without source in infants aged 22–60 days:how laboratory tests perform at identifying bacterial infections and predicting the need for a lumbar puncture?
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作者 Keven Vachon Geneviève Gravel +6 位作者 Samuel Leduc Alexandra Larouche Myriam Mallet David Simonyan Mahukpe Narcisse Ulrich Singbo Julie Ouellet-Pelletier Simon Berthelot 《World Journal of Emergency Medicine》 2025年第1期74-77,共4页
Febrile infants are at greater risk of invasive bacterial infections (IBI),which include bacterial meningitis and bacteremia.Although bacterial meningitis is uncommon,^([1-2])it remains a concern for clinicians treati... Febrile infants are at greater risk of invasive bacterial infections (IBI),which include bacterial meningitis and bacteremia.Although bacterial meningitis is uncommon,^([1-2])it remains a concern for clinicians treating infants younger than 90 d.Guidelines for investigating fever without a source(meaning without an apparent source of infection,or of nonobvious origin) are numerous around the world but remain conflicting,particularly on whether to perform a lumbar puncture for cerebrospinal fluid (CSF) analysis in infants older than 22 d and hence at lower risk than younger infants. 展开更多
关键词 puncture infections LUMBAR
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Exploring the Implementation Pathway for Point-of-Care Ultrasound-Guided Basic Clinical Puncture Procedures in Practical Teaching
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作者 Siyu Xu Chunlei Xia +4 位作者 Zhao Lin Rongming Liu Youhong Zhao Ning Zhang Bin Liu 《Journal of Clinical and Nursing Research》 2025年第12期323-328,共6页
The present study aims to explore the implementation pathway for practical teaching of basic clinical puncture procedures under the guidance of point-of-care ultrasound(POCUS).The goal of the study is twofold:firstly,... The present study aims to explore the implementation pathway for practical teaching of basic clinical puncture procedures under the guidance of point-of-care ultrasound(POCUS).The goal of the study is twofold:firstly,to address the shortcomings of the current medical education model and,secondly,to enhance medical students’independent thinking abilities and clinical diagnostic skills.The study enrolled 87 clinical medicine interns rotating at Jiangning Hospital in Nanjing from January to December 2024,dividing them into an experimental group(receiving ultrasound-guided puncture procedure training)and a control group(receiving conventional puncture procedure training).It was evident that both groups had successfully completed the requisite two-hour comprehensive course training program.A subsequent analysis of the teaching outcomes was then conducted through intergroup comparison.The findings indicated that the experimental group exhibited lower DOPS assessment scores in comparison to the control group(4.91±1.01 vs.5.84±1.22,p<0.05).However,the satisfaction levels of the experimental group with the teaching method reached 95.45%.This finding indicates that ultrasound-guided puncture techniques may offer a substantial advantage in terms of pedagogical approaches.However,it should be noted that students in the experimental group faced challenges such as high operational complexity and the need to pay attention to numerous details during actual procedures,leading to lower assessment scores.Conducting a systematic analysis of these issues can provide clear directions for the optimization of teaching methods in the future,thereby enhancing students’learning outcomes and clinical application capabilities. 展开更多
关键词 Point-of-care ultrasound puncture Practical training
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移动信道下采用Punctured卷积码实现不等错误保护的研究 被引量:4
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作者 袁东风 李作为 +1 位作者 隋爱芬 宁继鸣 《电子学报》 EI CAS CSCD 北大核心 2001年第7期996-999,共4页
本文以移动信道的四状态Markov模型为基础 ,将Punctured卷积码 (PuncturedConvolutionalCodes;PCC)用于快衰落移动信道下的图像传输系统中 ,提出了通过对码率、母码约束长度和交织度这三种不同自由度的调整 ,实现图像传输的不等错误保护... 本文以移动信道的四状态Markov模型为基础 ,将Punctured卷积码 (PuncturedConvolutionalCodes;PCC)用于快衰落移动信道下的图像传输系统中 ,提出了通过对码率、母码约束长度和交织度这三种不同自由度的调整 ,实现图像传输的不等错误保护 (UnequalErrorProtection ;UEP)方案 .计算机模拟结果表明 ,所提出的方案具有明显的不等错误保护能力 ,可以满足在具有不等错误保护要求的移动环境下对传输图像质量的要求 . 展开更多
关键词 移动信道 punctured卷积码 不等错误保护 移动通信
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Warm needling moxibustion at Xià guān(下关 ST 7) plus shallow Puncture for Bell's palsy in pregnancy 被引量:4
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作者 陈姗 宣丽华 刘姗 《World Journal of Acupuncture-Moxibustion》 CSCD 2017年第2期57-61,共5页
Objective To observe the effects of a protocol consisting of warm needling with moxibustion at Xiàguān(下关 ST 7) plus shallow puncture on Bell's palsy(BP) in pregnancy.Methods Thirteen patients with BP rec... Objective To observe the effects of a protocol consisting of warm needling with moxibustion at Xiàguān(下关 ST 7) plus shallow puncture on Bell's palsy(BP) in pregnancy.Methods Thirteen patients with BP received an intervention of warm needling moxibustion at ST 7 plus shallow puncture,and were evaluated using the House–Brackmann facial nerve grading system(HB) before and after intervention.Result After intervention,the HB grade improved significantly(P0.05).Conclusion Warm needling moxibustion plus shallow puncture is a safe and effective therapy for pregnant BP patients.BP in pregnancy appears to be more frequent in the last trimester.The severity of nerve injury and the timing for the first visit to the doctor after the onset of facial paralysis are essential factors for the recovery and prognosis of pregnant with BP. 展开更多
关键词 Bell's palsy PREGNANCY Warm needling MOXIBUSTION shallow puncture
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Epidural analgesia followed by epidural hydroxyethyl starch prevented post-dural puncture headache:Twenty case reports and a review of the literature 被引量:1
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作者 Lin-Lin Song Yin Zhou Zhi-Yu Geng 《World Journal of Clinical Cases》 SCIE 2021年第8期1946-1952,共7页
BACKGROUND Accidental dural puncture(ADP)and subsequent post-dural puncture headache(PDPH)remain common complications of epidural procedures for obstetric anesthesia and analgesia.No clear consensus exists on the best... BACKGROUND Accidental dural puncture(ADP)and subsequent post-dural puncture headache(PDPH)remain common complications of epidural procedures for obstetric anesthesia and analgesia.No clear consensus exists on the best way to prevent PDPH after ADP.CASE SUMMARY We report our findings in twenty parturients who underwent an incorporated strategy of epidural analgesia followed by epidural hydroxyethyl starch(HES)to prevent PDPH after ADP with a 16-gauge Tuohy needle during epidural procedures.ADP with a 16-gauge Tuohy needle occurred in nine parturients undergoing a cesarean section(CS)and in eleven parturients receiving labor analgesia.An epidural catheter was re-sited at the same or adjacent intervertebral space in all patients.After CS,the epidural catheter was used for postoperative pain relief over a 48-h period.After delivery in eleven cases,epidural infusion was maintained for 24 h.Thereafter,15 mL of 6%HES 130/0.4 was administered via the epidural catheter immediately prior to catheter removal.None of the parturients developed PDPH or neurologic deficits over a follow-up period of at least two months to up to one year postpartum.CONCLUSION An incorporated strategy of epidural analgesia followed by epidural hydroxyethyl starch may have great efficacy in preventing PDPH after ADP. 展开更多
关键词 Epidural analgesia Hydroxyethyl starch Accidental dural puncture Postdural puncture headache PROPHYLAXIS Case report
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EVALUATION ON THE THERAPEUTIC EFFECT OF DEEP PUNCTURE OF TIANSHU (ST 25) FOR SLOW TRANSIT CONSTIPATION 被引量:1
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作者 张维 刘志顺 郭军 《World Journal of Acupuncture-Moxibustion》 2005年第3期3-7,共5页
Objective: To evaluate the short-term and middle-long-term therapeutic effects of deep puncture of Tianshu (天枢 ST 25) for slow transit constipation (STC). Methods: Sixty cases of STC patients were evenly rando... Objective: To evaluate the short-term and middle-long-term therapeutic effects of deep puncture of Tianshu (天枢 ST 25) for slow transit constipation (STC). Methods: Sixty cases of STC patients were evenly randomized into Methods: group and medication group. In acupuncture group, electroaoupuncture (EA, 20 Hz, continuous waves and tolerable strength) was applied to bilateral Tienshu (ST 25) for 30 min after deep puncture. The treatment was given once daily, 5 sessions every week, two weeks altogether. Patients of control group were ordered to take Lactulose ( 10mL/time, b. i. d), two weeks altogether. Cleveland Constipation Score (CCS) and colonic transit time (COT) were used to evaluate the therapeutic effect. Results: After treatment, both COS and COT showed that the therapeutic effect of acupuncture group was significantly superior to that of medication group (P〈0.05). Six-months' follow up showed that the therapeutic effect of acupuncture still maintained in 13 of the 22 cases visited, while that of control group only maintained in 1 of the 19 cases. Conclusion: The therapeutic effect of deep puncture of Tianshu (ST 25) for STC is definite and has a middle-long-term effect. The patients have no any unfavorable reactions. 展开更多
关键词 Slow transit constipation Acupuncture therapy Deep puncture of Tianshu (ST 25)
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Blood-letting puncture and cupping at Dong's unique extra points for 65 cases of neck type of cervical spondylosis 被引量:3
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作者 闫晓瑞 《World Journal of Acupuncture-Moxibustion》 2012年第3期60-62,共3页
Objective To observe the clinical effect of blood-letting puncture and cupping at Chōngxiāo(冲霄 Extra) point of Dong's unique Extra-ordinary points in the treatment of neck type of cervical spondylosis.Methods S... Objective To observe the clinical effect of blood-letting puncture and cupping at Chōngxiāo(冲霄 Extra) point of Dong's unique Extra-ordinary points in the treatment of neck type of cervical spondylosis.Methods Sixty-five patients of neck type of cervical spondylosis were selected and treated with blood-letting puncture and cupping at Chōngxiāo(冲霄 Extra) point once every two or three days,three times constituted one course and two successive courses were given,then the clinical effect was evaluated.Results The curative rate was 69.2%(45/65),and the total effective rate was 92.3%(60/65).Conclusion Blood-letting puncture and cupping at Dong's Chōngxiāo(冲霄 Extra) point can be used to treat neck type of cervical spondylosis with simple manipulation and obvious efficacy. 展开更多
关键词 cervical spondylosis neck type blood-letting puncture and cupping Dong's unique extra-ordinary points
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Three‑dimensional Modeling and Simulation of Muscle Tissue Puncture Process
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作者 Zongkai Lv Qinghua Song +3 位作者 Fan Gao Zhanqiang Liu Yi Wan Yonghang Jiang 《Chinese Journal of Mechanical Engineering》 SCIE EI CAS CSCD 2022年第3期174-186,共13页
Needle biopsy is an essential part of modern clinical medicine.The puncture accuracy and sampling success rate of puncture surgery can be effectively improved through virtual surgery.There are few three-dimensional pu... Needle biopsy is an essential part of modern clinical medicine.The puncture accuracy and sampling success rate of puncture surgery can be effectively improved through virtual surgery.There are few three-dimensional puncture(3D)models,which have little significance for surgical guidance under complicated conditions and restrict the development of virtual surgery.In this paper,a 3D simulation of the muscle tissue puncture process is studied.Firstly,the mechanical properties of muscle tissue are measured.The Mooney-Rivlin(M-R)model is selected by considering the fitting accuracy and calculation speed.Subsequently,an accurate 3D dynamic puncture model is established.The failure criterion is used to define the breaking characteristics of the muscle,and the bilinear cohesion model defines the breaking process.Experiments with different puncture speeds are carried out through the built in vitro puncture platform.The experimental results are compared with the simulation results.The experimental and simulated reaction force curves are highly consistent,which verifies the accuracy of the model.Finally,the model under different parameters is studied.The simulation results of varying puncture depths and puncture speeds are analyzed.The 3D puncture model can provide more accurate model support for virtual surgery and help improve the success rate of puncture surgery. 展开更多
关键词 puncture biopsy Muscle soft tissue 3D puncture Simulation
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Post Dural Puncture Headache—Review and Suggested New Treatment
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作者 Sharon L. Kracoff Vladimir Kotlovker 《Open Journal of Anesthesiology》 2016年第9期148-163,共16页
Objectives: After reading this article, readers should be able to recognize Post Dural Puncture Headache, understand its mechanism and diagnostic criteria, evaluate the different treatment options available, and be fa... Objectives: After reading this article, readers should be able to recognize Post Dural Puncture Headache, understand its mechanism and diagnostic criteria, evaluate the different treatment options available, and be familiar with a novel treatment option. Background: Post-dural puncture headache is the most common serious complication resulting from lumbar puncture and epidural or spinal anesthetics. The syndrome is characterized by severe headache that occurs within 48 hours following the puncture, located in the frontal and/or occipital region, worsened in the upright position and refractory to routine analgesia. The syndrome incidence was reported to be approximately 1% with typical obstetric anesthesiology practice which reflects more than 20,000 cases per 2014 in the US. Two possible mechanisms are hypothesized as responsible for this syndrome;cerebrospinal fluid leakage and pneumocephalus. Multiple methods of treatment have been applied with wide-ranging results. Design or Methods: Review article with introduction of a novel treatment option. Results: We postulate that Hyperbaric Oxygen Therapy can be used to treat post-dural puncture headache. The rationale for treatment is dual: enhancement of fibroblast proliferation at the site of dural puncture to facilitate faster closure of the tear and compression of air bubbles in case of pneumocephalus according to Boyle’s law. We also claim that hyperbaric oxygen therapy should be considered a prophylactic treatment, if a dural tear is suspected. 展开更多
关键词 Post Dural puncture Headache Lumbar puncture Epidural Anesthesia Spinal Anesthesia HEADACHE Hyperbaric Oxygen Therapy
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Comparison of Transperineum and Transrectal Prostate Puncture Biopsy Guided by Rectal Ultrasound
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作者 ZHANGXiaolei 《外文科技期刊数据库(文摘版)医药卫生》 2022年第3期094-097,共4页
Objective: to compare the effect of transperineum and transrectal prostate puncture biopsy guided by rectal ultrasound. Methods: 117 patients who underwent perineal and transrectal prostate puncture biopsy from 2019 t... Objective: to compare the effect of transperineum and transrectal prostate puncture biopsy guided by rectal ultrasound. Methods: 117 patients who underwent perineal and transrectal prostate puncture biopsy from 2019 to 2021, including 58 patients and 59 patients from transrectal prostate puncture biopsy group, were selected to compare the final effect of patients with different puncture biopsies. Results: the effect of perineal biopsy was better than transrectal prostate biopsy, and patients were significantly lower than transrectal prostate biopsy. Conclusion: on the whole, the two rectal biopsy methods differ the actual biopsy results, which can check the disease well, but the related complications of perineal puncture biopsy will be relatively low. 展开更多
关键词 rectal ultrasound guidance transperineal puncture transrectal prostate puncture effect comparison
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Application of Self-made Artery Puncture Pillow in Radial Artery Blood Collection
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作者 SHI Chunhong ZUO Bin 《外文科技期刊数据库(文摘版)医药卫生》 2021年第12期1012-1015,共7页
Objective: to analyze the application effect of self-made artery puncture pillow in radial artery blood collection, so as to provide convenience for clinical nursing work. Methods: using convenience sampling method, 2... Objective: to analyze the application effect of self-made artery puncture pillow in radial artery blood collection, so as to provide convenience for clinical nursing work. Methods: using convenience sampling method, 240 patients hospitalized in the department of Cardiovascular Medicine of our hospital from January to August 2021 were selected as research objects, and divided into groups according to the odd and even number of bed numbers, with 120 patients in each group. In the control group, the traditional wrist pillow was used to pad the expert wrist, and after puncture, cotton swab was pressed to stop bleeding. Patients in the study group used self-made arterial puncture pillow on expert wrist, and then used elastic compression band to stop bleeding after puncture. The success rate of one puncture, incidence of local moderate to severe pain, bleeding and ecchymosis, effective hemostasis rate and patient satisfaction were compared between the two groups. Results: the success rate of one puncture in the study group was 95.8%(115/120), higher than that in the control group (87.5%(105/120). Moderate-severe pain, bleeding, and hematoma rates were lower in the study group than in the control group. The patient satisfaction in the study group was 98.3%, higher than 90% in the control group. Conclusion: application of homemade artery puncture pillow can fully expose of puncture, greatly improve the success rate of puncture, blood after use elastic pressure with oppression hemostasis replaces the artificial pressure, saves the manpower, dynamic MaiZhen timer set 5-10 minutes of press time remind, improves the hemostatic effect, reduce the incidence of complications after the biopsy, worth clinical promotion. 展开更多
关键词 homemade arterial puncture pillow arterial blood sampling one puncture success rate COMPLICATIONS
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Sodium tanshinone IIA sulfonate attenuates cardiac dysfunction and improves survival of rats with cecal ligation and puncture-induced sepsis 被引量:14
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作者 MENG Zheng-Jie WANG Chao +3 位作者 MENG Ling-Tong BAO Bei-Hua WU Jin-Hui HU Yi-Qiao 《Chinese Journal of Natural Medicines》 SCIE CAS CSCD 2018年第11期846-855,共10页
Cardiac dysfunction, a common consequence of sepsis, is the major contribution to morbidity and mortality in patients. Sodium tanshinone IIA sulfonate(STS) is a water-soluble derivative of Tanshinone IIA(TA), a main a... Cardiac dysfunction, a common consequence of sepsis, is the major contribution to morbidity and mortality in patients. Sodium tanshinone IIA sulfonate(STS) is a water-soluble derivative of Tanshinone IIA(TA), a main active component of Salvia miltiorrhiza Bunge, which has been widely used in China for the treatment of cardiovascular and cerebral system diseases. In the present study, the effect of STS on sepsis-induced cardiac dysfunction was investigated and its effect on survival rate of rats with sepsis was also evaluated. STS treatment could significantly decrease the serum levels of C-reactive protein(CRP), procalcitonin(PCT), cardiac troponin Ⅰ(cTn-Ⅰ), cardiac troponin T(cTn-T), and brain natriuretic peptide(BNP) in cecal ligation and puncture(CLP)-induced) septic rats and improve left ventricular function, particularly at 48 and 72 h after CLP. As the pathogenesis of septic myocardial dysfunction is attributable to dysregulated systemic inflammatory responses, several key cytokines, including tumor necrosis factor-α(TNF-α), interleukin-1β(IL-1β), interleukin-6(IL-6), interleukin-10(IL-10) and high mobility group protein B1(HMGB1), were detected to reveal the possible mechanism of attenuation of septic myocardial dysfunction after being treated by STS. Our study showed that STS, especially at a high dose(15 mg×kg–1), could efficiently suppress inflammatory responses in myocardium and reduce myocardial necrosis through markedly reducing production of myocardial TNF-α, IL-6 and HMGB1. STS significantly improved the 18-day survival rate of rats with sepsis from 0% to 30%(P < 0.05). Therefore, STS could suppress inflammatory responses and improve left ventricular function in rats with sepsis, suggesting that it may be developed for the treatment of sepsis. 展开更多
关键词 Sodium tanshinone II A sulfonate SEPSIS Cardiac dysfunction CYTOKINE Cecal ligation and puncture model
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Triple Puncture for Primary Trigeminal Neuralgia:A Randomized Clinical Trial 被引量:6
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作者 Yang-pu ZHANG Yan WANG +1 位作者 Wen-guang XIA Ai-qun SONG 《Current Medical Science》 SCIE CAS 2019年第4期638-644,共7页
To evaluate the effect of triple puncture on primary trigeminal neuralgia (pTN),64 patients with pTN were randomly assigned to two groups:treatment group and control group.The participants in the treatment group recei... To evaluate the effect of triple puncture on primary trigeminal neuralgia (pTN),64 patients with pTN were randomly assigned to two groups:treatment group and control group.The participants in the treatment group received triple puncture treatment of 6 times per week for 4 weeks,and those in control group were given carbamazepine (300-600 mg per day) for at least 1 month.Before and after treatment,the primary outcomes including the total efficiency rate and the VAS pain scores,and the secondary outcomes including the frequency of pain attack and adverse events were observed.Sixty-two participants finished the study (33 in treatment group and 29 in control group individually).After treatment,the symptoms (mainly pain) of the two groups were alleviated.The total efficiency rate in the treatment group and control group was 90.9% and 75.9% respectively.The VAS pain scores and frequency of pain attack were significantly reduced in the treatment group as compared with the control group (P<0.05).The incidence of adverse events in the treatment group and control group was 9.1% and 24.1% respectively.It can be inferred that triple puncture can effectively improve the quality of life of patients with pTN and has less side effects. 展开更多
关键词 TRIPLE puncture primary TRIGEMINAL NEURALGIA RANDOMIZED clinical TRIAL
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Serial lumbar puncture reduces cerebrospinal fluid (CSF) infection during removal of hemorrhagic CSF in aneurysmal subarachnoid hemorrhage after endovascular coiling 被引量:13
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作者 Chen Liang Ling Yang Shiwen Guo 《The Journal of Biomedical Research》 CAS CSCD 2018年第4期305-310,共6页
The present study aimed to compare the complications and clinical outcomes of serial lumbar puncture(LP) and lumbar cerebrospinal fluid(CSF) drainage(LD) of patients with aneurysmal subarachnoid hemorrhage and p... The present study aimed to compare the complications and clinical outcomes of serial lumbar puncture(LP) and lumbar cerebrospinal fluid(CSF) drainage(LD) of patients with aneurysmal subarachnoid hemorrhage and provide more evidence to guide clinical management.In this retrospective study,41 and 39 aneurysmal subarachnoid hemorrhage patients were enrolled in the LP and LD group,respectively.Clinical outcomes,including CSF infection,intracerebral hemorrhage,vasospasm,hydrocephalus,death,length of stay,duration of drainage and the Glasgow Outcome Scale score were compared between the two groups.By comparing with the LP group,the LD group showed a significantly higher rate of CSF infection(P= 0.029) and shorter duration of drainage(P〈 0.001).Both groups displayed similar rates of vasospasm,hydrocephalus,intracerebral hemorrhage,the Glasgow Outcome Scale score one month after endovascular coiling and length of stay(P〉 0.05,respectively).In conclusion,both LD and serial LP are effective methods in the treatment of aneurysmal subarachnoid hemorrhage; besides,serial LP can reduce the incidence of CSF infection in draining hemorrhagic CSF in aneurysmal subarachnoid hemorrhage after endovascular coiling. 展开更多
关键词 serial lumbar puncture cerebrospinal fluid infection aneurysmal subarachnoid hemorrhage
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基于Punctured卷积码的UEP方案在FMT系统中的应用
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作者 王凤丽 朱维红 高振明 《计算机工程与应用》 CSCD 北大核心 2006年第29期123-125,共3页
论文将信道编码与多载波调制——滤波多音(FMT,filtered multitone)调制技术相结合,并应用到图像的传输中,通过采用调整Punctured卷积码不同的码率实现图像传输的不等错误保护(UnequalErrorProtection),增加了系统的可靠性,又提高系统... 论文将信道编码与多载波调制——滤波多音(FMT,filtered multitone)调制技术相结合,并应用到图像的传输中,通过采用调整Punctured卷积码不同的码率实现图像传输的不等错误保护(UnequalErrorProtection),增加了系统的可靠性,又提高系统传输效率,满足在具有不等错误保护要求的无线环境下对传输图像质量的要求。 展开更多
关键词 多径信道 滤波器组调制 punctured卷积码 不等错误保护
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Precise robust motion control of cell puncture mechanism driven by piezoelectric actuators with fractional-order nonsingular terminal slidingmode control 被引量:5
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作者 Shengdong Yu Hongtao Wu +2 位作者 Mingyang Xie Haiping Lin Jinyu Ma 《Bio-Design and Manufacturing》 SCIE CSCD 2020年第4期410-426,共17页
A novel robust controller is proposed in this study to realize the precise motion control of a cell puncture mechanism(CPM)driven by piezoelectric ceramics(PEAs).The entire dynamic model of CPM is constructed based on... A novel robust controller is proposed in this study to realize the precise motion control of a cell puncture mechanism(CPM)driven by piezoelectric ceramics(PEAs).The entire dynamic model of CPM is constructed based on the Bouc–Wen model,and the nonlinear part of the dynamic model is optimized locally to facilitate the construction of a robust controller.A model-based,nonlinear robust controller is constructed using time-delay estimation(TDE)and fractional-order nonsingular terminal sliding mode(FONTSM).The proposed controller does not require prior knowledge of unknown disturbances due to its real-time online estimation and compensation of unknown terms by using the TDE technology.The controller also has finite-time convergence and high-precision trajectory tracking capabilities due to FONTSM manifold and fast terminal sliding mode-type reaching law.The stability of the closed-loop system is proved by Lyapunov stability theory.Computer simulation and hardware-in-loop simulation experiments of CPM verify that the proposed controller outperforms traditional terminal sliding mode controllers,such as the integer-order or model-free controller.The proposed controller can also continuously output without chattering and has high control accuracy.Zebrafish embryo is used as a verification target to complete the cell puncture experiment.From the engineering application perspective,the proposed control strategy can be effectively applied in a PEA-driven CPM. 展开更多
关键词 Cell puncture mechanism(CPM) Piezoelectric actuator(PEA) Robust motion control Fractional-order nonsingular terminal sliding mode(FONTSM) Time-delay estimation(TDE)
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