期刊文献+
共找到91篇文章
< 1 2 5 >
每页显示 20 50 100
Stubborn Hypoxia in Neonates with D-Transposition of the Great Arteries after Arterial Switch Operation: Central Sleep Apnea as the Cause and Potential Indicator of Brain Immaturity
1
作者 Camden L.Hebson Kyle Bliton +4 位作者 Amr Y.Hammouda Kaitlyn Barr W.Hampton Gray Mohini Gunnett Waldemar F.Carlo 《Congenital Heart Disease》 SCIE 2024年第2期185-195,共11页
D-transposition of the great arteries(d-TGA)is surgically repaired with the arterial switch operation(ASO)with excellent results,however short and long-term morbidities still develop including neurocognitive delay.Cli... D-transposition of the great arteries(d-TGA)is surgically repaired with the arterial switch operation(ASO)with excellent results,however short and long-term morbidities still develop including neurocognitive delay.Clinically significant central sleep apnea is uncommon in non-premature infants,but when present indicates immature autonomic control of respiration likely due to a neurologic disorder.We report the unanticipatedfinding of central sleep apnea in four-term neonates with d-TGA after uncomplicated ASO,with the short-term complication of delayed hospital discharge and long-term concerns regarding this early marker of brain immaturity and its hindrance to normal development.Within this report,we will review each patient’s clinical course and then examine the literature on pediatric central sleep apnea,neurodevelopmental outcomes after ASO,and the important overlap of these entities in the care of patients going forward. 展开更多
关键词 TRANSPOSITION congenital heart disease sleep apnea POLYSOMNOGRAPHY
下载PDF
Transposition of the lingual thyroid gland to the submandibular region through a submandibular approach:A case report
2
作者 Yu-Ting Yin Chao Gui 《World Journal of Clinical Cases》 SCIE 2024年第21期4794-4801,共8页
BACKGROUNDEctopic thyroid at the base of the tongue is a rare congenital condition, and it iseven rarer to have clinical symptoms and require surgical intervention. Thisdisease is easily misdiagnosed preoperatively. T... BACKGROUNDEctopic thyroid at the base of the tongue is a rare congenital condition, and it iseven rarer to have clinical symptoms and require surgical intervention. Thisdisease is easily misdiagnosed preoperatively. This article reports the diagnosis,surgical treatment, and follow-up of a case of lingual thyroid.CASE SUMMARYThe patient was a 54-year-old woman who presented with laryngeal foreign bodysensation and dysphagia for 20 d. The lingual thyroid was considered for generalexamination, and surgery was performed to transpose the lingual thyroid to theright submaxillary region. Pathological analysis confirmed thyroid tissue. Thepatient experienced complete remission after surgery, but developed hypothyroidismand required thyroid hormone replacement therapy, and her thyroidfunction gradually recovered over time.CONCLUSIONWe report a rare case of lingual thyroid with marked laryngeal foreign body sensationand dysphagia. Symptoms were completely relieved by transposition surgerybut postoperative hypothyroidism developed. 展开更多
关键词 Lingual thyroid DYSPHAGIA TRANSPOSITION SURGERY Case report
下载PDF
Case Report: Surgical Correction of Transposition of the Great Arteries with Aortopulmonary Window
3
作者 Qiqi Shi Xuan Lei +1 位作者 Wenbo Zhang Ming Ye 《Congenital Heart Disease》 SCIE 2024年第3期275-278,共4页
Introduction:Transposition of the great arteries(TGA)with aortopulmonary window is a rare type of congenital heart disease with limited experience.We reported a neonate aged 25 days receiving the arterial switch opera... Introduction:Transposition of the great arteries(TGA)with aortopulmonary window is a rare type of congenital heart disease with limited experience.We reported a neonate aged 25 days receiving the arterial switch operation and assisted with extracorporeal membrane oxygenation.Conclusion:TGA with aortopulmonary window can be safely correctly with the arterial switch operation. 展开更多
关键词 Transposition of the great arteries aortopulmonary window arterial switch operation
下载PDF
Sorting Unsigned Permutations by Weighted Reversals,Transpositions,and Transreversals
4
作者 娄晓文 朱大铭 《Journal of Computer Science & Technology》 SCIE EI CSCD 2010年第4期853-863,共11页
Reversals, transpositions and transreversals are common events in genome rearrangement. The genome rearrangement sorting problem is to transform one genome into another using the minimum number of given rearrangement ... Reversals, transpositions and transreversals are common events in genome rearrangement. The genome rearrangement sorting problem is to transform one genome into another using the minimum number of given rearrangement operations. An integer permutation is used to represent a genome in many cases. It can be divided into disjoint strips with each strip denoting a block of consecutive integers. A singleton is a strip of one integer. And the genome rearrange- ment problem turns into the problem of sorting a permutation into the identity permutation equivalently. Hannenhalli and Pevzner designed a polynomial time algorithm for the unsigned reversal sorting problem on those permutations with O(logn) singletons. In this paper, first we describe one case in which Hannenhalli and Pevzner's algorithm may fail and propose a corrected approach. In addition, we propose a (1 + ε)-approximation algorithm for sorting unsigned permutations with O(log n) singletons by reversals of weight 1 and transpositions/transreversals of weight 2. 展开更多
关键词 approximation algorithm genome rearrangement SORTING REVERSAL TRANSPOSITION
原文传递
Long head of biceps tendon transposition for massive and irreparable rotator cuff tears:A systematic review and meta-analysis 被引量:1
5
作者 Ren-Wen Wan Zhi-Wen Luo +4 位作者 Yi-Meng Yang Han-Li Zhang Jia-Ni Chen Shi-Yi Chen Xi-Liang Shang 《World Journal of Orthopedics》 2023年第11期813-826,共14页
BACKGROUND Superior capsular reconstruction(SCR)with long head of biceps tendon(LHBT)transposition was developed to massive and irreparable rotator cuff tears(MIRCTs);however,the outcomes of this technique remain uncl... BACKGROUND Superior capsular reconstruction(SCR)with long head of biceps tendon(LHBT)transposition was developed to massive and irreparable rotator cuff tears(MIRCTs);however,the outcomes of this technique remain unclear.AIM To perform a systematic review of biomechanical outcomes and a meta-analysis of clinical outcomes after LHBT transposition for MIRCTs.METHODS We performed a systematic electronic database search on PubMed,EMBASE,and Cochrane Library.Studies of SCR with LHBT transposition were included according to the inclusion and exclusion criteria.Biomechanical studies were assessed for main results and conclusions.Included clinical studies were evaluated for quality of methodology.Data including study characteristics,cohort demographics,and outcomes were extracted.A meta-analysis was conducted of the clinical outcomes.RESULTS According to our inclusion and exclusion criteria,a total of six biomechanical studies were identified and reported an overall improvement in subacromial contact pressures and prevention of superior humeral migration without limiting range of motion(ROM)after LHBT transposition for MIRCTs.A total of five clinical studies were included in the meta-analysis of LHBT transposition outcomes,consisting of 253 patients.The results indicated that compared to other surgical methods for MIRCTs,LHBT transposition had advantages of more significant improvement in ROM(forward flexion mean difference[MD]=6.54,95%confidence interval[CI]:3.07-10.01;external rotation[MD=5.15,95%CI:1.59-8.17];the acromiohumeral distance[AHD][MD=0.90,95%CI:0.21-1.59])and reducing retear rate(odds ratio=0.27,95%CI:0.15-0.48).No significant difference in American Shoulder and Elbow Surgeons score,visual analogue scale score,and University of California at Los Angles score was demonstrated between these two groups for MIRCTs.CONCLUSION In general,SCR with LHBT transposition was a reliable and economical technique for treating MIRCTs,both in terms of biomechanical and clinical outcomes,with comparable clinical outcomes,improved ROM,AHD,and reduced the retear rates compared to conventional SCR and other established techniques.More high-quality randomized controlled studies on the long-term outcomes of SCR with LHBT transposition are required to further assess. 展开更多
关键词 Massive and irreparable rotator cuff tears Long head of biceps tendon transposition Rotator cuff repair Superior capsular reconstruction
下载PDF
A Lightweight Road Scene Semantic Segmentation Algorithm
6
作者 Jiansheng Peng Qing Yang Yaru Hou 《Computers, Materials & Continua》 SCIE EI 2023年第11期1929-1948,共20页
In recent years,with the continuous deepening of smart city construction,there have been significant changes and improvements in the field of intelligent transportation.The semantic segmentation of road scenes has imp... In recent years,with the continuous deepening of smart city construction,there have been significant changes and improvements in the field of intelligent transportation.The semantic segmentation of road scenes has important practical significance in the fields of automatic driving,transportation planning,and intelligent transportation systems.However,the current mainstream lightweight semantic segmentation models in road scene segmentation face problems such as poor segmentation performance of small targets and insufficient refinement of segmentation edges.Therefore,this article proposes a lightweight semantic segmentation model based on the LiteSeg model improvement to address these issues.The model uses the lightweight backbone network MobileNet instead of the LiteSeg backbone network to reduce the network parameters and computation,and combines the Coordinate Attention(CA)mechanism to help the network capture long-distance dependencies.At the same time,by combining the dependencies of spatial information and channel information,the Spatial and Channel Network(SCNet)attention mechanism is proposed to improve the feature extraction ability of the model.Finally,a multiscale transposed attention encoding(MTAE)module was proposed to obtain features of different resolutions and perform feature fusion.In this paper,the proposed model is verified on the Cityscapes dataset.The experimental results show that the addition of SCNet and MTAE modules increases the mean Intersection over Union(mIoU)of the original LiteSeg model by 4.69%.On this basis,the backbone network is replaced with MobileNet,and the CA model is added at the same time.At the cost of increasing the minimum model parameters and computing costs,the mIoU of the original LiteSeg model is increased by 2.46%.This article also compares the proposed model with some current lightweight semantic segmentation models,and experiments show that the comprehensive performance of the proposed model is the best,especially in achieving excellent results in small object segmentation.Finally,this article will conduct generalization testing on the KITTI dataset for the proposed model,and the experimental results show that the proposed algorithm has a certain degree of generalization. 展开更多
关键词 Semantic segmentation LIGHTWEIGHT road scenes multi-scale transposition attention encoding(MTAE)
下载PDF
Modified inferior oblique anterior transposition for dissociated vertical deviation combined with superior oblique palsy:A case report
7
作者 Yao Zong Ze Wang +1 位作者 Wen-Lan Jiang Xian Yang 《World Journal of Clinical Cases》 SCIE 2023年第12期2796-2802,共7页
BACKGROUND Inferior oblique anterior transposition(IOAT)has emerged as an effective surgery in the management of dissociated vertical deviation(DVD)combined with superior oblique palsy(SOP).Traditional IOAT usually pr... BACKGROUND Inferior oblique anterior transposition(IOAT)has emerged as an effective surgery in the management of dissociated vertical deviation(DVD)combined with superior oblique palsy(SOP).Traditional IOAT usually provides satisfactory primary position alignment and simultaneously restricts the superior floating phenomenon.However,it also increases the risk of the anti-elevation syndrome and narrowing of the palpebral fissure in straight-ahead gaze,especially after the unilateral operation.CASE SUMMARY We report the outcomes of the modified unilateral IOAT in two patients with unilateral DVD combined with SOP.The anterior-nasal fibers of the inferior oblique muscle were attached at 9 mm posterior to the corneal limbus along the temporal board of the inferior rectus muscle,the other fibers were attached a further 5 mm temporal to the anterior-nasal fibers.Postoperatively,both hypertropia and floating were improved,and no obvious complications occurred.CONCLUSION In these cases,the modified unilateral IOAT was an effective and safe surgical method for treating DVD with SOP. 展开更多
关键词 Anterior transposition Inferior oblique muscles Dissociated vertical deviation Superior oblique palsy Anti-elevation syndrome Case report
下载PDF
Effectiveness of modified inferior oblique muscle belly transposition for V-pattern exotropia combined with mild to moderate inferior oblique muscle overaction
8
作者 Yang Hao Ming Zhang +2 位作者 Yue Bian Jing-Ming Li Li Qin 《International Journal of Ophthalmology(English edition)》 SCIE CAS 2023年第3期396-401,共6页
AIM:To investigate the effectiveness of a modified inferior oblique muscle belly transposition for treatment of V-pattern exotropia combined with mild to moderate inferior oblique muscle overaction.METHODS:Thirteen ca... AIM:To investigate the effectiveness of a modified inferior oblique muscle belly transposition for treatment of V-pattern exotropia combined with mild to moderate inferior oblique muscle overaction.METHODS:Thirteen cases(23 affected eyes)of V-pattern exotropia with inferior oblique muscle overaction(+or++)who underwent the modified inferior oblique muscle belly transposition procedure were retrospectively reviewed.The amount of V-pattern,grade of inferior oblique overaction,degree of vertical strabismus,abnormal head posture,and the fovea-disc angle were evaluated before and after surgery.RESULTS:The V-pattern was corrected in all cases,and the amount of V-pattern reduced by 17.85±5.13 prism diopter(PD)on average(t=16.07,P<0.001).The surgical cure rate for mild to moderate inferior oblique muscle overaction was 87.0%(20/23).The degree of the foveadisc angle has a mean reduction of 5.45°±2.87°(t=3.95,P=0.003)after surgery.The mean vertical deviation in 5 cases with a small-angle hypertropia(5.23±3.06 PD)in the primary position reduced by 3.15±1.86 PD(t=6.10,P<0.001).No serious complications were observed.CONCLUSION:The modified inferior oblique muscle belly transposition procedure can effectively treat mild to moderate inferior oblique overaction and relieve the V-pattern,which is safe and easy to perform. 展开更多
关键词 inferior oblique muscle belly transposition V-pattern exotropia inferior oblique muscle overaction
下载PDF
Anatomic Correlates of Mitral Systolic Anterior Motion in Transposition of the Great Arteries Following Atrial Switch Operation
9
作者 Norman Aiad Mark V.Sherrid +7 位作者 Adam J.Small Youssef Elnabawi Jodi Feinberg Leon Axel Ralph Mosca T.K.Susheel Kumar Michael Argilla Dan G.Halpern 《Congenital Heart Disease》 SCIE 2023年第3期267-277,共11页
Introduction:We sought to investigate whether the development of sub-pulmonic systolic anterior motion(SAM)may be inherent to the anatomy of the the mitral valve(MV)or affected by external factors,such as a dilated ri... Introduction:We sought to investigate whether the development of sub-pulmonic systolic anterior motion(SAM)may be inherent to the anatomy of the the mitral valve(MV)or affected by external factors,such as a dilated right ventricle or chest abnormalities in d-looped transposition of the great arteries post atrial switch operation(d-TGA/AtS).Methods:Analysis was performed of clinical and cardiac imaging studies acquired on 19 adult patients with d-TGA/AtS(age 42±6 years old,56%male)between 2015–2019.Echocardiography data included mitral apparatus anatomy,and CT/MRI data included biventricular dimensions,function,and Haller index(HI)for pectus deformity.Results:Patients with leaflet SAM(n=6)compared to patients without SAM(n=13)had higher MV protrusion height(2.3±0.5 vs.1.5±0.4 cm,p≤0.01)and longer anterior MV leaflet length(3.1±0.4 cm vs.2.6±0.3 cm p≤0.05),when compared to those without.CT/MRI showed higher sub-pulmonic left ventricular ejection fraction(LVEF)in the SAM group(71%±8%vs.54%±7%,respectively).RV size and function,significant chest deformity(HI>3.5),presence of a ventricular lead pacemaker,and septal thickness did not play a role in development of SAM.Conclusions:An elongated mitral apparatus is associated with the development of SAM,and the development of left ventricular outflow tract obstruction(LVOTO),in d-TGA/AtS.LV hyperkinesia is associated with SAM.Systemic RV dimensions,septal thickness,and degree of chest deformity did not differ significantly between subjects with SAM and those without. 展开更多
关键词 d-loop transposition of the great arteries mustard operation senning operation systolic anterior motion of the mitral valve ECHOCARDIOGRAPHY cardiac MRI
下载PDF
Study on the Homologous Sequences of copia-like Retrotransposons in a Twin ovary Mutant of Rice 被引量:3
10
作者 王文明 邢少辰 +2 位作者 郑先武 赵显峰 朱立煌 《Acta Botanica Sinica》 CSCD 2000年第1期43-49,共7页
A twin ovary mutant derived from the doubled haploid (DH) progeny of a cross,02428/Gui 630, was presumably related to the transposition of some transposable elements. Up to date, all reported the active transposable ... A twin ovary mutant derived from the doubled haploid (DH) progeny of a cross,02428/Gui 630, was presumably related to the transposition of some transposable elements. Up to date, all reported the active transposable elements in rice (Oryza sativa L.) are copia like retrotransposons. In the present study, the reverse transcriptase domains of copia like retrotransposons were amplified from the total DNA isolated from the mutant plants with the degenerated oligonucleotide primers for the domain. Three cloned insert DNAs, R33 1, R33 4 and R33 8, representing putative different copia like retrotransposons were screened out. Two of them displayed high polymorphism between “Zhaiyeqing 8” and “Jingxi 17”. Nine of the polymorphic bands were mapped on seven rice chromosomes. Sequencing analysis revealed that stop codons frequently occur in the sequence of R33 8, while both R33 1 and R33 4 contain a continuous coding region for 81 putative amino acid residues. No significant variation in hybridization patterns was found between indica and japonica rice or among 26 varieties of indica rice when R33 1 was used as a probe. Nevertheless, when R33 4 was used as a probe, high polymorphisms were detected both between indica and japonica rice and among 26 indica varieties, implying that this element might still be active in rice genomes. 展开更多
关键词 RICE COPIA like retrotransposon transposable element reverse transcriptase TRANSPOSITION
下载PDF
Ac/Ds Transposition Activity in Transgenic Rice Population and DNA Flanking Sequence of Ds Insertion Sites 被引量:6
11
作者 朱正歌 付亚萍 +4 位作者 肖晗 胡国成 斯华敏 于永红 孙宗修 《Acta Botanica Sinica》 CSCD 2003年第1期102-107,共6页
The Agrobacterium mediated transgenic rice ( Oryza saliva L.) population with inserts of maize transposon Activator/Dissociation (Ac/Ds) was investigated. DNA sequences flanking the T-DNA were analyzed with inverse PC... The Agrobacterium mediated transgenic rice ( Oryza saliva L.) population with inserts of maize transposon Activator/Dissociation (Ac/Ds) was investigated. DNA sequences flanking the T-DNA were analyzed with inverse PCR. Results showed that 65.4% of the T-DNA was integrated in different locations of rice genome, and some T-DNA flanking sequences were located on certain chromosomes. A number of T-DNA was found to have inserted into protein coding regions. In order to induce transposition of the inserted Ds elements, 354 crosses of Ac x Ds and Ds x Ac were constructed. The excision frequency of Ds element trans-activated by Ac transposase was 22.7% in the F-2 populations, and the transposition was confirmed with analyses of DNA sequences flanking the Ds elements. In addition to the transposition due to 'cut-paste' mechanism, Ds can replicate itself and integrate into a new locus, and inaccurate excisions were also found. A proportion of DNA segments flanking the Ds elements showed no homologies to sequences published in GenBank, of which two were registered under the accession numbers AF355153 and AF355770. The strategy of using transposon tagging for rice genomics study was discussed. 展开更多
关键词 transposon Ac/Ds transposition activity flanking sequence Oryza sativa
下载PDF
TRANSPOSABLE GENETIC ELEMENTS IN SPIRULINA AND POTENTIAL APPLICATIONS FOR GENETIC ENGINEERING 被引量:3
12
作者 秦松 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 1998年第S1期30-39,共10页
Transposable elements in cyanobacteria are briefly reviewed. Evidence is presentedto show that transposable elements in Spirulina platensis is actually reflected on the phenotype change, i.e., helical to straight fila... Transposable elements in cyanobacteria are briefly reviewed. Evidence is presentedto show that transposable elements in Spirulina platensis is actually reflected on the phenotype change, i.e., helical to straight filaments. Transposition intermediates of DNA were isolated from the extrachromo-some and the transposition was related to helical variations in Spirulina. Uses of transposable elements formicroalgal recombination are discussed based on the transposition mechanism. 展开更多
关键词 TRANSPOSITION TRANSPOSON INSERTION sequence SPIRULINA transformation
下载PDF
Reinnervation of spinal cord anterior horn cells after median nerve repair using transposition with other nerves 被引量:2
13
作者 Yu-Song Yuan Su-Ping Niu +8 位作者 You-Lai Yu Pei-Xun Zhang Xiao-Feng Yin Na Han Ya-Jun Zhang Dian-Ying Zhang Hai-Lin Xu Yu-Hui Kou Bao-Guo Jiang 《Neural Regeneration Research》 SCIE CAS CSCD 2019年第4期699-705,共7页
Our previous studies have confirmed that during nerve transposition repair to injured peripheral nerves, the regenerated nerve fibers of motor neurons in the anterior horn of the spinal cord can effectively repair dis... Our previous studies have confirmed that during nerve transposition repair to injured peripheral nerves, the regenerated nerve fibers of motor neurons in the anterior horn of the spinal cord can effectively repair distal nerve and target muscle tissue and restore muscle motor function. To observe the effect of nerve regeneration and motor function recovery after several types of nerve transposition for median nerve defect(2 mm), 30 Sprague-Dawley rats were randomly divided into sham operation group, epineurial neurorrhaphy group, musculocutaneous nerve transposition group, medial pectoral nerve transposition group, and radial nerve muscular branch transposition group. Three months after nerve repair, the wrist flexion test was used to evaluate the recovery of wrist flexion after regeneration of median nerve in the affected limbs of rats. The number of myelinated nerve fibers, the thickness of myelin sheath, the diameter of axons and the cross-sectional area of axons in the proximal and distal segments of the repaired nerves were measured by osmic acid staining. The ratio of newly produced distal myelinated nerve fibers to the number of proximal myelinated nerve fibers was calculated. Wet weights of the flexor digitorum superficialis muscles were measured. Muscle fiber morphology was detected using hematoxylin-eosin staining. The cross-sectional area of muscle fibers was calculated to assess the recovery of muscles. Results showed that wrist flexion function was restored, and the nerve grew into the distal effector in all three nerve transposition groups and the epineurial neurorrhaphy group. There were differences in the number of myelinated nerve fibers in each group. The magnification of proximal to distal nerves was 1.80, 3.00, 2.50, and 3.12 in epineurial neurorrhaphy group, musculocutaneous nerve transposition group, medial pectoral nerve transposition group, and radial nerve muscular branch transposition group, respectively. Nevertheless, axon diameters of new nerve fibers, cross-sectional areas of axons, thicknesses of myelin sheath, wet weights of flexor digitorum superficialis muscle and cross-sectional areas of muscle fibers of all three groups of donor nerves from different anterior horn motor neurons after nerve transposition were similar to those in the epineurial neurorrhaphy group. Our findings indicate that donor nerve translocation from different anterior horn motor neurons can effectively repair the target organs innervated by the median nerve. The corresponding spinal anterior horn motor neurons obtain functional reinnervation and achieve some degree of motor function in the affected limbs. 展开更多
关键词 NERVE REGENERATION TRANSPOSITION repair MEDIAN NERVE functional remodeling muscle atrophy surgical intervention peripheral NERVE injury neural REGENERATION
下载PDF
Brain functional remodeling caused by sciatic nerve transposition repair in rats identified by multiplemodel resting-state blood oxygenation level-dependent functional magnetic resonance imaging analysis 被引量:2
14
作者 Yu-Song Yuan Hai-Lin Xu +3 位作者 Zhong-Di Liu Yu-Hui Kou Bo Jin Pei-Xun Zhang 《Neural Regeneration Research》 SCIE CAS CSCD 2022年第2期418-426,共9页
Lower extremity nerve transposition repair has become an important treatment strategy for peripheral nerve injury;however, brain changes caused by this surgical procedure remain unclear. In this study, the distal stum... Lower extremity nerve transposition repair has become an important treatment strategy for peripheral nerve injury;however, brain changes caused by this surgical procedure remain unclear. In this study, the distal stump of the right sciatic nerve in a rat model of sciatic nerve injury was connected to the proximal end of the left sciatic nerve using a chitin conduit. Neuroelectrophysiological test showed that the right lower limb displayed nerve conduction, and the structure of myelinated nerve fibers recovered greatly. Muscle wet weight of the anterior tibialis and gastrocnemius recovered as well. Multiple-model resting-state blood oxygenation level-dependent functional magnetic resonance imaging analysis revealed functional remodeling in multiple brain regions and the re-establishment of motor and sensory functions through a new reflex arc. These findings suggest that sciatic nerve transposition repair induces brain functional remodeling. The study was approved by the Ethics Committee of Peking University People's Hospital on December 9, 2015(approval No. 2015-50). 展开更多
关键词 brain connectivity brain network fALFF MRI nerve transposition repair peripheral nerve injury ReHo REMODELING
下载PDF
Applied anatomical study of the vascularized ulnar nerve and its blood supply for cubital tunnel syndrome at the elbow region 被引量:3
15
作者 Mei-xiu-li Li Qiong He +5 位作者 Zhong-lin Hu Sheng-hua Chen Yun-cheng Lv Zheng-hai Liu Yong Wen Tian-hong Peng 《Neural Regeneration Research》 SCIE CAS CSCD 2015年第1期141-145,共5页
Cubital tunnel syndrome is often accompanied by paresthesia in ulnar nerve sites and hand muscle atrophy. When muscle weakness occurs, or after failure of more conservative treatments, anterior transposition is used. ... Cubital tunnel syndrome is often accompanied by paresthesia in ulnar nerve sites and hand muscle atrophy. When muscle weakness occurs, or after failure of more conservative treatments, anterior transposition is used. In the present study, the ulnar nerve and its blood vessels were examined in the elbows of 18 adult cadavers, and the external diameter of the nutrient vessels of the ulnar nerve at the point of origin, the distances between the origin of the vessels and the medial epicondyle of the humerus, and the length of the vessels accompanying the ulnar nerve in the superior ulnar collateral artery, the inferior ulnar collateral artery, and the posterior ulnar recurrent artery were measured. Anterior transposition of the vascularized ulnar nerve was per- formed to treat cubital tunnel syndrome. The most appropriate distance that the vascularized ulnar nerve can be moved to the subcutaneous tissue under tension-free conditions was 1.8 ± 0.6 cm (1.1-2.5 cm), which can be used as a reference value during the treatment of cubital tunnel syndrome with anterior transposition of the vascularized ulnar nerve. 展开更多
关键词 nerve regeneration ulnar nerve blood supply compressive neuropathy cubital tunnelsyndrome superior ulnar collateral artery inferior ulnar collateral artery posterior ulnar recurrentartery anterior transposition neural regeneration
下载PDF
Salvage of vascular graft infections via vacuum sealing drainage and rectus femoris muscle flap transposition: A case report 被引量:3
16
作者 Peng Zhang Fu-Lin Tao +2 位作者 Qing-Hu Li Dong-Sheng Zhou Fan-Xiao Liu 《World Journal of Clinical Cases》 SCIE 2021年第10期2296-2301,共6页
BACKGROUND The management of vascular graft infections continues to be a significant challenge in a clinical situation.The aim of this report is to illustrate the novel vacuum sealing drainage(VSD)technique and rectus... BACKGROUND The management of vascular graft infections continues to be a significant challenge in a clinical situation.The aim of this report is to illustrate the novel vacuum sealing drainage(VSD)technique and rectus femoris muscle flap transposition for vascular graft infections,and to evaluate the prospective of future testing of this surgical procedure.CASE SUMMARY We report the case of a 32-year-old male patient,who presented a severe infected groin wound with biological vascular graft Acinetobacter baumannii infection resulting in extensive graft exposure.Using the VSD and muscle flap transposition,the groin wound and vascular graft infection were finally treated successfully.CONCLUSION Our case report highlights that VSD technique and rectus femoris muscle flap transposition could be considered in patients presenting with a severe infected groin wound with biological vascular graft Acinetobacter baumannii infection resulting in extensive graft exposure,especially in consideration of treatable conditions. 展开更多
关键词 Vascular graft INFECTION Muscle flap transposition Rectus femoris muscle flap Vacuum sealing drainage Case report TRAUMA
下载PDF
Repair of peripheral nerve defects by nerve transposition using small gap bio-sleeve suture with different inner diameters at both ends 被引量:1
17
作者 Yu-Hui Kou You-Lai Yu +7 位作者 Ya-Jun Zhang Na Han Xiao-Feng Yin Yu-Song Yuan Fei Yu Dian-Ying Zhang Pei-Xun Zhang Bao-Guo Jiang 《Neural Regeneration Research》 SCIE CAS CSCD 2019年第4期706-712,共7页
During peripheral nerve transposition repair, if the diameter difference between transposed nerves is large or multiple distal nerves must be repaired at the same time, traditional epineurial neurorrhaphy has the prob... During peripheral nerve transposition repair, if the diameter difference between transposed nerves is large or multiple distal nerves must be repaired at the same time, traditional epineurial neurorrhaphy has the problem of high tension at the suture site, which may even lead to the failure of nerve suture. We investigated whether a small gap bio-sleeve suture with different inner diameters at both ends can be used to repair a 2-mm tibial nerve defect by proximal transposition of the common peroneal nerve in rats and compared the results with the repair seen after epineurial neurorrhaphy. Three months after surgery, neurological function, nerve regeneration, and recovery of nerve innervation muscle were assessed using the tibial nerve function index, neuroelectrophysiological testing, muscle biomechanics and wet weight measurement, osmic acid staining, and hematoxylin-eosin staining. There was no obvious inflammatory reaction and neuroma formation in the tibial nerve after repair by the small gap bio-sleeve suture with different inner diameters at both ends. The conduction velocity, muscle strength, wet muscle weight, cross-sectional area of muscle fibers, and the number of new myelinated nerve fibers in the biosleeve suture group were similar to those in the epineurial neurorrhaphy group. Our findings indicate that small gap bio-sleeve suture with different inner diameters at both ends can achieve surgical suture between nerves of different diameters and promote regeneration and functional recovery of injured peripheral nerves. 展开更多
关键词 NERVE REGENERATION bio-sleeve small GAP SLEEVE SUTURE NERVE TRANSPOSITION NERVE defect NERVE conduit NERVE reinnervation peripheral NERVE neural REGENERATION
下载PDF
Coronary artery occlusion after arterial switch operation in an asymptomatic 15-year-old boy 被引量:1
18
作者 Ashish P Saini Stephen E Cyran +1 位作者 Steven M Ettinger Linda B Pauliks 《World Journal of Clinical Cases》 SCIE 2016年第8期219-222,共4页
A 15-year-old boy with transposition of the great arteries(TGA) and neonatal arterial switch operation(ASO) presented with complete occlusion of the left main coronary artery(LMCA). Intra-operatively, an intramural le... A 15-year-old boy with transposition of the great arteries(TGA) and neonatal arterial switch operation(ASO) presented with complete occlusion of the left main coronary artery(LMCA). Intra-operatively, an intramural left coronary artery was identified. Therefore, since age 7 years he had a series of screening exercise stress tests. At 13 years old, he had 3 to 4 mm ST segment depression in the infero-lateral leads without symptoms. This progressed to 4.2 mm inferior ST segment depression at 15 years old with normal stress echocardiogram. Sestamibi myocardial perfusion scan and cardiac magnetic resonance imaging was inconclusive. Therefore, a coronary angiogram was obtained which showed complete occlusion of the LMCA with ample collateralization from the right coronary artery system. This was later confirmed on a computed tomogram(CT) angiogram, obtained in preparation of coronary artery bypass grafting. The case illustrates the difficulty of detecting coronary artery stenosis and occlusion in young patients with rich collateralization. Coronary CT angiogram and conventional angiography were the best imaging modalities to detect coronary anomalies in this adolescent with surgically corrected TGA. Screening CT angiography may be warranted for TGA patients, particularly for those with known coronary anomalies. 展开更多
关键词 TRANSPOSITION of the great vessels Arterial switch operation CORONARY ANGIOGRAPHY ERGOMETRY CORONARY occlusion
下载PDF
Transposition of Branches of Radial Nerve Innervating Supinator to Posterior Interosseous Nerve for Functional Reconstruction of Finger and Thumb Extension in 4 Patients with Middle and Lower Trunk Root Avulsion Injuries of Brachial Plexus 被引量:4
19
作者 吴霞 丛小兵 +6 位作者 黄启顺 艾方兴 刘玉田 鲁晓乘 李进 翁雨雄 陈振兵 《Journal of Huazhong University of Science and Technology(Medical Sciences)》 SCIE CAS 2017年第6期933-937,共5页
This study aimed to investigate the reconstruction of the thumb and finger extension function in patients with middle and lower trunk root avulsion injuries of the brachial plexus. From April 2010 to January 2015, we ... This study aimed to investigate the reconstruction of the thumb and finger extension function in patients with middle and lower trunk root avulsion injuries of the brachial plexus. From April 2010 to January 2015, we enrolled in this study 4 patients diagnosed with middle and lower trunk root avulsion injuries of the brachial plexus via imaging tests, electrophysiological examinations, and clinical confirmation. Muscular branches of the radial nerve, which innervate the supinator in the forearm, were transposed to the posterior interosseous nerve to reconstruct the thumb and finger extension function. Electrophysiological findings and muscle strength of the extensor pollicis longus and extensor digitorum communis, as well as the distance between the thumb tip and index finger tip, were monitored. All patients were followed up for 24 to 30 months, with an average of 27.5 months. Motor unit potentials(MUP) of the extensor digitorum communis appeared at an average of 3.8 months, while MUP of the extensor pollicis longus appeared at an average of 7 months. Compound muscle action potential(CMAP) appeared at an average of 9 months in the extensor digitorum communis, and 12 months in the extensor pollicis longus. Furthermore, the muscle strength of the extensor pollicis longus and extensor digitorum communis both reached grade Ⅲ at 21 months. Lastly, the average distance between the thumb tip and index finger tip was 8.8 cm at 21 months. In conclusion, for patients with middle and lower trunk injuries of the brachial plexus, transposition of the muscular branches of the radial nerve innervating the supinator to the posterior interosseous nerve for the reconstruction of thumb and finger extension function is practicable and feasible. 展开更多
关键词 brachial plexus peripheral nerve supinator trauma nerve transposition
下载PDF
Surgical treatment for severe cubital tunnel syndrome with absent sensory nerve conduction 被引量:1
20
作者 Jin-Song Tong Zhen Dong +2 位作者 Bin Xu Cheng-Gang Zhang Yu-Dong Gu 《Neural Regeneration Research》 SCIE CAS CSCD 2019年第3期519-524,共6页
For severe cubital tunnel syndrome, patients with absent sensory nerve action potential tend to have more severe nerve damage than those without. Thus, it is speculated that such patients generally have a poor prognos... For severe cubital tunnel syndrome, patients with absent sensory nerve action potential tend to have more severe nerve damage than those without. Thus, it is speculated that such patients generally have a poor prognosis. How absent sensory nerve action potential affects surgical outcomes remains uncertain owing to a scarcity of reports and conflicting results. This retrospective study recruited one hundred and fourteen cases(88 patients with absent sensory nerve action potential and 26 patients with present sensory nerve action potential) undergoing either subcutaneous transposition or in situ decompression. The minimum follow-up was set at 2 years. Primary outcome measures of overall hand function included their McGowan grade, modified Bishop score, and Disabilities of the Arm, Shoulder, and Hand Questionnaire(DASH) score. For patients with absent sensory nerve action potential, 71 cases(80.7%) achieved at least one McGowan grade improvement, 76 hands(86.4%) got good or excellent results according to the Bishop score, and the average DASH score improved 49.5 points preoperatively to 13.1 points postoperatively. When compared with the present sensory nerve action potential group, they showed higher postoperative McGowan grades and DASH scores, but there was no statistical difference between the modified Bishop scores of the two groups. Following in situ decompression or subcutaneous transposition, great improvement in hand function was achieved for severe cubital tunnel syndrome patients with absent sensory nerve action potential. The functional outcomes after surgery for severe cubital tunnel syndrome are worse in patients with absent sensory nerve action potential than those without. This study was approved by the Ethical Committee of Huashan Hospital, Fudan University, China(approval No. 2017142). 展开更多
关键词 NERVE REGENERATION ABSENT sensory NERVE action potential cubital tunnel syndrome disease severity electrodiagnostic testing in situ DECOMPRESSION SUBCUTANEOUS TRANSPOSITION surgical outcomes prognostic factors peripheral NERVE compression neural REGENERATION
下载PDF
上一页 1 2 5 下一页 到第
使用帮助 返回顶部