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Unlocking hypoglycemia–associated brain microvascular dysfunction:critical insights from proteomic analysis
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作者 Siva S.V.P.Sakamuri Anil Sakamuri 《Neural Regeneration Research》 SCIE CAS 2025年第6期1707-1708,共2页
Hypoglycemia-a critical complication linked to worsened brain function in diabetic subjects:Hypoglycemia is characterized by a decline in circulatory glucose levels below sta nda rd physiological thresholds.Mild hypog... Hypoglycemia-a critical complication linked to worsened brain function in diabetic subjects:Hypoglycemia is characterized by a decline in circulatory glucose levels below sta nda rd physiological thresholds.Mild hypoglycemia,classified as level 1 hypoglycemia,is defined by blood glucose levels below 70 mg/dL and can be effectively addressed through carbohydrate intake.Severe hypoglycemia,denoted by blood glucose levels less than 54 mg/dL,poses a life-threatening risk if left untreated.Individuals with type 1 and type 2 diabetes undergoing insulin treatment are particularly susceptible to hypoglycemia due to impaired counterregulatory mechanisms. 展开更多
关键词 IMPAIRED INTAKE CRITICAL
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Application of multi-planar reconstruction technique in endovascular repair of aortic dissection 被引量:1
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作者 Guo-Jie Li Ming-Xian Zhao 《World Journal of Clinical Cases》 SCIE 2024年第17期2989-2994,共6页
BACKGROUND Endovascular repair of aortic dissection is an effective method commonly used in the treatment of Stanford type B aortic dissection.Stent placement during the operation was one-time and could not be repeate... BACKGROUND Endovascular repair of aortic dissection is an effective method commonly used in the treatment of Stanford type B aortic dissection.Stent placement during the operation was one-time and could not be repeatedly adjusted during the operation.Therefore,it is of great significance for cardiovascular physicians to fully understand the branch status,position,angle,and other information regarding aortic arch dissection before surgery.AIM To provide more references for clinical cardiovascular physicians to develop treatment plans.METHODS Data from 153 patients who underwent endovascular repair of aortic dissection at our hospital between January 2021 and December 2022 were retrospectively collected.All patients underwent multi-slice spiral computed tomography angiography.Based on distinct post-image processing techniques,the patients were categorized into three groups:Multiplanar reconstruction(MPR)(n=55),volume reconstruction(VR)(n=46),and maximum intensity projection(MIP)(n=52).The detection rate of aortic rupture,accuracy of the DeBakey classification,rotation,and tilt angles of the C-arm during the procedure,dispersion after stent release,and the incidence of late complications were recorded and compared.RESULTS The detection rates of interlayer rupture in the MPR and VR groups were significantly higher than that in the MIP group(P<0.05).The detection rates of De-Bakey subtypesⅠ,Ⅱ,andⅢin the MPR group were higher than those in the MIP group,and the detection rate of typeⅢin the MPR group was significantly higher than that in the VR group(P<0.05).There was no statistically significant difference in the detection rates of typesⅠandⅡcompared to the VR group(P>0.05).The scatter rate of markers and the incidence of complications in the MPR group were significantly lower than those in the VR and MIP groups(P<0.05).CONCLUSION The application of MPR in the endovascular repair of aortic dissection has improved the detection rate of dissection rupture,the accuracy of anatomical classification,and safety. 展开更多
关键词 Multiplanar reconstruction Endovascular repair of aortic dissection Image-processing technology Rate of aortic rupture Volume reconstruction
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Reliability of Echocardiographic Pulmonary Vascular Resistance to Screen for the New Definition of Precapillary Pulmonary Hypertension in Uncorrected Secundum Atrial Septal Defect
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作者 Risalina Myrtha Hasanah Mumpuni +3 位作者 Real Kusumanjaya Marsam Dyah Wulan Anggrahini Anggoro Budi Hartopo Lucia Kris Dinarti 《Congenital Heart Disease》 SCIE 2024年第3期315-324,共10页
Background and Objective:The most feared complication of uncorrected secundum Atrial Septal Defect(ASD)is pulmonary arterial hypertension(PAH).Pulmonary vascular resistance(PVR)is crucial in detecting precapil-lary pu... Background and Objective:The most feared complication of uncorrected secundum Atrial Septal Defect(ASD)is pulmonary arterial hypertension(PAH).Pulmonary vascular resistance(PVR)is crucial in detecting precapil-lary pulmonary hypertension(PH)to guide the need for PAH-specific therapy.There is a change in the cut-off value of PVR according to the recently updated PH guideline.How echocardiographic PVR(PVRecho)correlates to PVR by right heart catheterization(RHC)(PVRcath)according to the new guidelines has not been known.The aim of this study is to determine the reliability of PVRecho in detecting PAH in Uncorrected Ostium Secundum ASD based on the current updated guideline and to help screen the high PVR group.Methods:429 ostium secun-dum ASD in the COngenital HeARt Disease in Adult and Pulmonary Hypertension(COHARD-PH)registry was divided into three groups according to the PVR.PVRecho was calculated using Abbas’Formula and compared the its gold standard,the PVRcath.The correlation between the two methods was analyzed.The Bland-Altman plot was used to analyze the agreement between the two methods.Receiver operating characteristics(ROC)analysis was used to determine the PVRecho cut-off value for high PVR.Results:The majority of the population(63.5%)had high PVR.Female gender dominated the study population(84%).PVR_(echo) was significantly correlated with PVRcath(r=0.6225,p<0.0001).Bland-Altman plot among all groups and in subgroups analysis showed a wide range of agreement.PVRecho underestimated PVRcath 5.124 WU.In subgroup analysis,PVRecho overestimated PVRcath 0.35 WU in those with PVR<2 WU.In the second and third groups,PVR_(echo) underestimated PVRcath 0.52 and 10.77 WU,respectively.Conclusion:PVRecho is reliable in predicting high PVR in uncorrected secun-dum ASD.However,there is a wide range of agreement.PVR_(echo) cut-off value of>1.62 WU showed good dis-criminatory power in determining high PVR. 展开更多
关键词 Pulmonary vascular resistance atrial septal defect ECHOCARDIOGRAPHY
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Clinical efficacy of endovascular revascularization combined with vacuum-assisted closure for the treatment of diabetic foot
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作者 Feng-Rui Lei Xiao-Fei Shen +3 位作者 Chuang Zhang Xin-Qing Li Hao Zhuang Hong-Fei Sang 《World Journal of Diabetes》 SCIE 2024年第7期1499-1508,共10页
BACKGROUND The diabetic foot is a common cause of disability and death,and comorbid foot infections usually lead to prolonged hospitalization,high healthcare costs,and a significant increase in amputation rates.And mo... BACKGROUND The diabetic foot is a common cause of disability and death,and comorbid foot infections usually lead to prolonged hospitalization,high healthcare costs,and a significant increase in amputation rates.And most diabetic foot trauma is complicated by lower extremity arteriopathy,which becomes an independent risk factor for major amputation in diabetic foot patients.AIM To establish the efficacy and safety of endovascular revascularization(ER)combined with vacuum-assisted closure(VAC)for the treatment of diabetic foot.METHODS Clinical data were collected from 40 patients with diabetic foot admitted to the Second Affiliated Hospital of Soochow University from April 2018 to April 2022.Diabetic foot lesions were graded according to Wagner’s classification,and blood flow to the lower extremity was evaluated using the ankle-brachial index test and computerized tomography angiography of the lower extremity arteries.Continuous subcutaneous insulin infusion pumps were used to achieve glycemic control.Lower limb revascularization was facilitated by percutaneous transluminal balloon angioplasty(BA)or stenting.Wounds were cleaned by nibbling debridement.Wound granulation tissue growth was induced by VAC,and wound repair was performed by skin grafting or skin flap transplantation.RESULTS Of the 35 cases treated with lower limb revascularization,34 were successful with a revascularization success rate of 97%.Of these,6 cases underwent stenting after BA of the superficial femoral artery,and 1 received popliteal artery stent implantation.In the 25 cases treated with infrapopliteal artery revascularization,39 arteries were reconstructed,7 of which were treated by drug-coated BA and the remaining 32 with plain old BA.VAC was performed in 32 wounds.Twenty-four cases of skin grafting and 2 cases of skin flap transplantation were performed.Two patients underwent major amputations,whereas 17 had minor amputations,accounting for a success limb salvage rate of 95%.CONCLUSION ER in combination with VAC is a safe and effective treatment for diabetic foot that can significantly improve limb salvage rates.The use of VAC after ER simplifies and facilitates wound repair. 展开更多
关键词 Diabetic foot REVASCULARIZATION Vacuum-assisted closure Balloon angioplasty Wound repair
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Central nervous injury risk factors after endovascular repair of a thoracic aortic aneurysm with type B aortic dissection
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作者 Feng Liang Jie-Qiong Su 《World Journal of Clinical Cases》 SCIE 2024年第22期4873-4880,共8页
Aortic dissection is the deadliest disease of the cardiovascular system.Type B aortic dissection accounts for 30%-60%of aortic dissections and is mainly treated by endovascular repair of thoracic endovascular aneurysm... Aortic dissection is the deadliest disease of the cardiovascular system.Type B aortic dissection accounts for 30%-60%of aortic dissections and is mainly treated by endovascular repair of thoracic endovascular aneurysm repair(TEVAR).However,patients are prone to various complications after surgery,with central nervous system injury being the most common,which seriously affects their prognosis and increases the risk of disability and death.Therefore,exploring the risk factors of central nervous system injury after TEVAR can provide a basis for its prevention and control.AIM To investigate the risk factors for central nervous system injury after the repair of a thoracic endovascular aneurysm with type B aortic dissection.METHODS We enrolled 306 patients with type B aortic dissection who underwent TEVAR at our hospital between December 2019 and October 2022.The patients were categorized into injury(n=159)and non-injury(n=147)groups based on central nervous system injury following surgery.The risk factors for central nervous system injury after TEVAR for type B aortic dissection were screened by comparing the two groups.Multivariate logistic regression analysis was performed.RESULTS The Association between age,history of hypertension,blood pH value,surgery,mechanical ventilation,intensive care unit stay,postoperative recovery times on the first day after surgery,and arterial partial pressure of oxygen on the first day after surgery differed substantially(P<0.05).Multivariate logistic regression analysis indicated that age,surgery time,history of hypertension,duration of mechanical ventilation,and intensive care unit stay were independent risk factors for central nervous system injury after TEVAR of type B aortic dissection(P<0.05).CONCLUSION For high-risk patients with central nervous system injury after TEVAR of type B aortic dissection,early intervention measures should be implemented to lower the risk of neurological discomfort following surgery in high-risk patients with central nervous system injury after TEVAR for type B aortic dissection. 展开更多
关键词 Plateau area Type B aortic dissection Thoracic endovascular aneurysm repair Central nervous system injury Risk factors
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Development and Innovation of Modern Microvascular Anastomoses
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作者 Mofei Wang Hongbo Guo +2 位作者 Guoxin Zhang Peng Ruan Kangkang Zhi 《Journal of Biosciences and Medicines》 2024年第10期105-118,共14页
High-quality microvascular anastomosis is the foundation of successful microsurgery and one of the most important basic skills for microsurgeons. The traditional manual suture is recognized as the “gold standard” fo... High-quality microvascular anastomosis is the foundation of successful microsurgery and one of the most important basic skills for microsurgeons. The traditional manual suture is recognized as the “gold standard” for microvascular anastomosis, but it still has problems such as long operation time and easy to cause vascular damage. In order to improve the success rate of microvascular anastomosis, reduce surgical complications and make the prognosis of patients better. In order to improve the success rate of microvascular anastomosis and reduce the surgical complications, scholars at home and abroad have developed some new vascular anastomosis techniques that are simple, fast and minimally invasive while improving the traditional surgical suturing methods. In this paper, we review the microvascular anastomosis, and its application research in two methods of traditional hand suture and non-suture anastomosis, in order to promote the application development of microvascular anastomosis. 展开更多
关键词 MICROVASCULATURE COUPLERS ANASTOMOSIS Microvascular Surgery
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Physical activity with or without dietary intervention for the prevention of cardiovascular diseases
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作者 Carl J.Lavie Salvatore Carbone Leandro Slipczuk 《Journal of Sport and Health Science》 SCIE CAS CSCD 2024年第6期753-755,共3页
We and others have published extensively on the benefits of physical activity(PA),exercise training,and cardiorespiratory fitness(CRF)to decrease the prevalence of cardiovascular diseases(CVDs)and CVD and all-cause mo... We and others have published extensively on the benefits of physical activity(PA),exercise training,and cardiorespiratory fitness(CRF)to decrease the prevalence of cardiovascular diseases(CVDs)and CVD and all-cause morbidity and mortality.^(1-5)Both PA and CRF are important;however,CRF,which is mostly obtained through PA,although there is a genetic component,seems to be even more important than PA for predicting prognosis.^(1,4-6)Certainly,the wealth of data from across the world has indicated that increasing PA to enhance CRF while mitigating sedentary behavior would go a long way to lessen the world-wide obesity epidemic and reduce CVD and all-cause mortality. 展开更多
关键词 MORTALITY PREVENTION DISEASES
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Current Controversies and the State of the Art in Endovascular Treatment of Vascular Malformations 被引量:14
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作者 Wayne Yakes Alexis Yakes +1 位作者 Fiona Rohlffs Krasnodar Ivancev 《Journal of Interventional Medicine》 2018年第2期65-69,共5页
Vascular anomalies constitute some of the most difficult diagnostic and therapeutic enigmas that can be encountered in the practice of medicine. The clinical presentations are extremely protean and can range from an a... Vascular anomalies constitute some of the most difficult diagnostic and therapeutic enigmas that can be encountered in the practice of medicine. The clinical presentations are extremely protean and can range from an asymptomatic birthmark to fulminant。 展开更多
关键词 CURRENT CONTROVERSIES and the State of the Art in ENDOVASCULAR Treatment of VASCULAR MALFORMATIONS AVM
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Proliferation of endothelial cell on polytetrafluoroethylene vascular graft materials carried VEGF gene plasmid 被引量:3
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作者 TAO Si-feng CHEN Li +3 位作者 ZHENG Yi-xiong XU Yuan CHEN Jian YU Hong 《Journal of Zhejiang University-Science B(Biomedicine & Biotechnology)》 SCIE CAS CSCD 2006年第6期421-428,共8页
Objective: To investigate whether vascular endothelial growth factor (VEGF) gene plasmid carried by polytetrafluoroethylene (PTFE) vascular graft materials could transfect endothelial cells (ECs) and promote th... Objective: To investigate whether vascular endothelial growth factor (VEGF) gene plasmid carried by polytetrafluoroethylene (PTFE) vascular graft materials could transfect endothelial cells (ECs) and promote their growth. Methods: PTFE vascular graft materials carried with pCDI-hVEGF121, pCDI or pEGFP were incubated in Tris-buffer solution and the values of optical density of 260 nm at different time were plotted, then the DNA controlled release curve was made. ECs derived from human umbilical vein were seeded on the pCDI-hVEGF121/pCDI/pEGFP-PTFE materials or tissue culture plates, ECs numbers were counted and VEGF protein concentrations at different time were measured by enzyme-linked immunoadsorbent assay method. Green fluorescent protein (GFP) expression in ECs on pEGFP-PTFE materials was examined with fluorescence mi- croscopy. Results: The controlled release curve showed that the gene released from PTFE materials was rapid within 8 h, then slowed down and that the gene released continuously even after 72 h. At 24, 72 and 120 h, ECs number and proliferation rate of pCDI-hVEGFI21-PTFE materials were higher than those ofpCDI or pEGFP-PTFE materials (P〈0.05). VEGF protein concentration of pCDI-hVEGF121-PTFE materials was higher than that of pC DI or pEGFP-PTFE materials at 6, 24, 72 and 120 h (P〈0.01). GFP expression in ECs on the pEGFP-PTFE materials could be detected by fluorescence microscopy. Conclusion: PTFE graft can be used as a carrier of VEGF gene plasmid, VEGF gene carried by PTFE can transfect ECs and promote ECs growth. 展开更多
关键词 Polytetrafluoroethylene Vascular endothelial growth factor Vascular grafts GENE Endothelial cell
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Review of imaging and endovascular intervention of iliocaval venous compression syndrome 被引量:4
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作者 Ming Ren Toh Tjun Yip Tang +2 位作者 Han Hui Mervin Nathan Lim Nanda Venkatanarasimha Karthikeyan Damodharan 《World Journal of Radiology》 2020年第3期18-28,共11页
Iliocaval venous compression syndrome(ICS)is the extrinsic compression of the common iliac vein by the overlying iliac artery against the vertebra.Chronic compression can lead to venous stenosis and stasis,which manif... Iliocaval venous compression syndrome(ICS)is the extrinsic compression of the common iliac vein by the overlying iliac artery against the vertebra.Chronic compression can lead to venous stenosis and stasis,which manifests as chronic venous disease and treatment resistance.Therefore,early recognition of ICS and prompt treatment are essential.Clinical presentations of ICS can be ambiguous and diagnosis requires a high index of suspicion with the relevant imaging studies.The initial imaging test is typically a Duplex ultrasound for vessel assessment and pelvic ultrasound to exclude a compressive mass,which is followed by computed tomography(CT)or magnetic resonance(MR)venography.CT and MRI can identify the anatomical causes for venous compression.In patients with high clinical suspicion for ICS,negative findings on CT and MR venography would still warrant further investigations.Definitive diagnosis can be established using catheter-based venography complemented with intravascular ultrasonography but the nature of their invasiveness limits its utility as a routine imaging modality.In this review paper,we will discuss the evidence,utility and limitations of the existing imaging modalities and endovascular intervention used in the management of ICS. 展开更多
关键词 Iliocaval venous compression syndrome Duplex ultrasound Intravascular ultrasound Computed tomography venography Magnetic resonance venography Endovascular stent
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Flip-over of blood vessel intima caused by vascular closure device:A case report
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作者 Li-Xia Sun Xue-Song Yang +4 位作者 Da-Wei Zhang Bo Zhao Lian-Lian Li Qi Zhang Qing-Zhi Hao 《World Journal of Clinical Cases》 SCIE 2022年第7期2247-2252,共6页
BACKGROUND Complications of vascular closure devices mainly include bleeding,vascular injury,and trapped device that cannot be removed percutaneously.However,arterial stenosis or occlusion induced by vascular injury i... BACKGROUND Complications of vascular closure devices mainly include bleeding,vascular injury,and trapped device that cannot be removed percutaneously.However,arterial stenosis or occlusion induced by vascular injury is rare.This article introduces a rare case with severe acute limb ischemia after using the vascular closure device(StarClose).CASE SUMMARY A 54-year-old man was admitted because of necrosis of the second toe of the left foot for 2 mo.Ultrasound showed left femoral artery stenosis,and occlusion of the left popliteal,posterior tibial,peroneal,anterior tibial and dorsalis pedis arteries,suggesting arteriosclerosis obliterans of low extremities,gangrene and type 2 diabetes.He underwent an interventional procedure of drug-eluting balloon in the left lower limb via antegrade puncture of the left common femoral artery.He developed acute limb ischemia after 1 h,and severe pain,numbness,pale skin,low skin temperature and weakened sensation in the left foot.Injury of the common femoral artery intima was considered.Exploratory surgery showed occlusion at the puncture point accompanied with bulged vascular lumen and flipped vascular intima caused by StarClose.The flipped intima was removed.The limb blood supply was restored and the limb was saved post-surgery.He recovered well at final follow-up.CONCLUSION Incorrect use of the vascular closure device was the main cause of severe acute limb ischemia in this case. 展开更多
关键词 StarClose vascular closure device Vascular injury COMPLICATIONS Case report
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Intravascular fasciitis involving the external jugular vein and subclavian vein:A case report
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作者 Xiao-Hu Meng Yong-Chang Liu +3 位作者 Le-Si Xie Chang-Pin Huang Xu-Pin Xie Xin Fang 《World Journal of Clinical Cases》 SCIE 2022年第3期985-991,共7页
BACKGROUND Intravascular fasciitis(IVF)is a rare nodular fasciitis that often involves the layers and lumens of blood vessels;therefore,it is easily misdiagnosed as a malignant tumor with invasion into blood vessels.C... BACKGROUND Intravascular fasciitis(IVF)is a rare nodular fasciitis that often involves the layers and lumens of blood vessels;therefore,it is easily misdiagnosed as a malignant tumor with invasion into blood vessels.CASE SUMMARY A 13-year-old boy was admitted due to a mass on the left side of his neck.Duplex ultrasonography revealed a circular solid hypoechoic mass in the external jugular vein,and magnetic resonance imaging revealed an enhanced longitudinal masslike lesion in the left supraclavicular fossa.Surgical treatment was arranged and completed,histopathological analysis showed a large amount of spindle cell proliferation,and immunohistochemistry showed that the spindle cells were positive for the expression of vimentin,caldesmon,and smooth muscle actin and negative for the expression of S-100 protein,desmin,CD34,and c-kit;Ki-67 staining revealed a low proliferative index(5%-10%),which confirmed the differentiation characteristics of myofibroblasts.Fluorescence in situ hybridization detected the rearrangement of USP6.IVF was subsequently diagnosed.CONCLUSION IVF is characterized by intraluminal,intramural and extramural involvement of small to large arteries or veins.Unless the doctor has a deep understanding of the disease or suspects that there is an initial indicator,IVF may be confused with other intravascular malignancies,leading to unnecessary radical surgery.Imaging examination combined with histopathological examination can improve the diagnostic accuracy of this disease. 展开更多
关键词 Case report Intravascular fasciitis Surgical treatment Spindle cells Intravascular malignancies
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Myocardial perfusion echocardiography and coronary microvascular dysfunction 被引量:13
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作者 Giuseppe Barletta Maria Riccarda Del Bene 《World Journal of Cardiology》 CAS 2015年第12期861-874,共14页
Our understanding of coronary syndromes has evolved in the last two decades out of the obstructive atherosclerosis of epicardial coronary arteries paradigm to include anatomo-functional abnormalities of coronary micro... Our understanding of coronary syndromes has evolved in the last two decades out of the obstructive atherosclerosis of epicardial coronary arteries paradigm to include anatomo-functional abnormalities of coronary microcirculation. No current diagnostic technique allows direct visualization of coronary microcirculation,but functional assessments of this circulation are possible. This represents a challenge in cardiology. Myocardial contrast echocardiography(MCE) was a breakthrough in echocardiography several years ago that claimed the capability to detect myocardial perfusion abnormalities and quantify coronary blood flow. Research demonstrated that the integration of quantitative MCE and fractional flow reserve improved the definition of ischemic burden and the relative contribution of collaterals in non-critical coronary stenosis. MCE identified no-reflow and low-flow within and around myocardial infarction,respectively,and predicted the potential functional recovery of stunned myocardium using appropriate interventions. MCE exhibited diagnostic performances that were comparable to positron emission tomography in microvascular reserve and microvascular dysfunction in angina patients. Overall,MCE improved echocardiographic evaluations of ischemic heart disease in daily clinical practice,but the approval of regulatory authorities is lacking. 展开更多
关键词 Contrast ECHOCARDIOGRAPHY MYOCARDIAL PERFUSION MYOCARDIAL ISCHEMIA MICROVASCULAR ANGINA Coronary flow
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Chronic mesenteric ischemia: Time to remember open revascularization 被引量:6
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作者 Michael Keese Thomas Schmitz-Rixen Thomas Schmandra 《World Journal of Gastroenterology》 SCIE CAS 2013年第9期1333-1337,共5页
Chronic mesenteric ischemia is caused by stenosis or occlusion of one or more visceral arteries. It represents a therapeutic challenge and diagnosis and treatment require close interdisciplinary cooperation between ga... Chronic mesenteric ischemia is caused by stenosis or occlusion of one or more visceral arteries. It represents a therapeutic challenge and diagnosis and treatment require close interdisciplinary cooperation between gastroenterologist, vascular surgeon and radiologist. Although endovascular treatment modalities have been developed, the number of restenoses ultimately resulting in treatment failure is high. In patients fit for open surgery, the visceral arteries should be revascularized conventionally. These patients will then experience long term relief from the symptoms, a better quality of life and a better overall survival. 展开更多
关键词 Chronic MESENTERIC ISCHEMIA STENT Vascular surgery RESTENOSIS Prognosis
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Vascular endothelial growth factor attenuates hepatic sinusoidal capillarization in thioacetamide-induced cirrhotic rats 被引量:14
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作者 Hao Xu Bao-Min Shi +4 位作者 Xiao-Fei Lu Feng Liang Xing Jin Tai-Huang Wu Jian Xu 《World Journal of Gastroenterology》 SCIE CAS CSCD 2008年第15期2349-2357,共9页
AIM: To investigate the effect of vascular endothelial growth factor (VEGF) transfection on hepatic sinusoidal capillarization. METHODS: Enhanced green fluorescent protein (EGFP)/ VEGF transfection was confirmed by im... AIM: To investigate the effect of vascular endothelial growth factor (VEGF) transfection on hepatic sinusoidal capillarization. METHODS: Enhanced green fluorescent protein (EGFP)/ VEGF transfection was confirmed by immunofluorescence microscopy and immunohistoche-mistry both in primary hepatocytes and in normal liver. Cirrhotic rats were generated by thioacetamide (TAA) administration and then divided into a treatment group, which received injections of 400 μg of plasmid DNA encoding an EGFP- VEGF fusion protein, and a blank group, which received an equal amount of normal saline through the portal vein. The portal vein pressure was measured in the normal and cirrhotic state, in treated and blank groups. The average number of fenestrae per hepatic sinusoid was determined using transmission electron microscopy (TEM), while the relative abundance of VEGF transcripts was examined by Gene array. RESULTS: Green fluorescent protein was observed in the cytoplasms of liver cells under immunofluorescence microscopy 24 h after transfection with EGFP/VEGF plasmid in vitro. Staining with polyclonal antibodies against VEGF illustrated that hepatocytes expressedimmunodetectable VEGF both in vitro and in vitro. There were significant differences in the number of fenestrae and portal vein pressures between normal and cirrhotic rats (7.40 ± 1.71 vs 2.30 ± 1.16 and 9.32 ± 0.85 cmH2O vs 17.92 ± 0.90 cmH2O, P < 0.01), between cirrhotic and treated rats (2.30 ± 1.16 cmH2O vs 4.60 ± 1.65 and 17.92 ± 0.90 cmH2O vs 15.52 ± 0.93 cmH2O, P < 0.05) and between the treatment group and the blank group (4.60 ± 1.65 cmH2O vs 2.10 ± 1.10 cmH2O and 15.52 ± 0.93 cmH2O vs 17.26 ± 1.80 cmH2O, P < 0.05). Gene- array analysis revealed that the relative abundance of transcripts of VEGF family members decreased in the cirrhotic state and increased after transfection. CONCLUSION: Injection of a plasmid encoding VEGF through the portal vein is an effective method to induce the formation of fenestrae and decrease portal vein pressure in cirrhotic rats. Therefore, it may be a good choice for treating hepatic cirrhosis and portal hypertension. 展开更多
关键词 Liver cirrhosis Hepatic sinusoid capillari-zation FENESTRAE Vascular endothelial growth factor Transmission electrical microscopy ULTRASTRUCTURE Genearray
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Baicalin inhibits PDGF-BB-stimulated vascular smooth muscle cell proliferation through suppressing PDGFRβ-ERK signaling and increase in p27 accumulation and prevents injury-induced neointimal hyperplasia 被引量:31
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作者 Li-Hua Dong Jin-Kun Wen +5 位作者 Sui-Bing Miao Zhenhua Jia Hai-Juan Hu Rong-Hua Sun Yiling Wu Mei Han 《Cell Research》 SCIE CAS CSCD 2010年第11期1252-1262,共11页
The increased proliferation and migration of vascular smooth muscle cells (VSMCs) are key events in the development of atherosclerotic lesions. Baicalin, an herb-derived flavonoid compound, has been previously shown... The increased proliferation and migration of vascular smooth muscle cells (VSMCs) are key events in the development of atherosclerotic lesions. Baicalin, an herb-derived flavonoid compound, has been previously shown to induce apoptosis and growth inhibition in cancer cells through multiple pathways. However, the potential role of baicalin in regulation of VSMC proliferation and prevention of cardiovascular diseases remains unexplored. In this study, we show that pretreatment with baicalin has a dose-dependent inhibitory effect on PDGF-BB-stimulated VSMC pro- liferation, accompanied with the reduction of proliferating cell nuclear antigen (PCNA) expression. We also show that baicalin-induced growth inhibition is associated with a decrease in cyclin E-CDK2 activation and increase in p27 level in PDGF-stimulated VSMCs, which appears to be at least partly mediated by blockade of PDGF recep- tor [~ (PDGFR~)-extracellular signal-regulated kinase 1/2 (ERK1/2) signaling. In addition, baicalin was also found to inhibit adhesion molecule expression and cell migration induced by PDGF-BB in VSMCs. Furthermore, using an animal carotid arterial balloon-injury model, we found that baicalin significantly inhibited neointimal hyperplasia. Taken together, our results reveal a novel function of baicalin in inducing growth arrest of PDGF-stimulated VSMCs and suppressing neointimal hyperplasia after balloon injury, and suggest that the underlying mechanism involves the inhibition of cyclin E-CDK2 activation and the increase in p27 accumulation via blockade of the PDGFR^-ERK1/2 signaling cascade. 展开更多
关键词 BAICALIN vascular smooth muscle cells proliferation cyclin E neointimal hyperplasia
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Transarterial Embolization versus Translumber Embolization for Type Ⅱ Endoleak after Endovascular Abdomi nal Aortic Aneurysm Repair:A Meta-Analysis 被引量:3
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作者 Xu Zhang Lei Ji +2 位作者 Mengyin Chen Wei Wang Yuehong Zheng 《Chinese Medical Sciences Journal》 CAS CSCD 2020年第2期135-141,共7页
Objective Type II endoleak is the most common subtype of endoleak as a complication after endovascular aneurysm repair(EVAR).The efficacy of transarterial(TA)embolization and translumber(TL)embolization in the managem... Objective Type II endoleak is the most common subtype of endoleak as a complication after endovascular aneurysm repair(EVAR).The efficacy of transarterial(TA)embolization and translumber(TL)embolization in the management of type II endoleak remains equipoise.The aim of this study is to compare the technical and clinical success between TA embolization andTL embolization for type II endoleak after EVAR.Methods The protocol was registered(CRD 42018114453)and the electronic databases(Pubmed,Embase,Web of Science,and Cochrane)were systematically searched till March 2019.The search terms included EVAR,type II endoleak,and embolization.The articles were read and extracted by two authors independently to include randomized control trails and retrospective studies that compared TA embolization and TL embolization in patients who developed type II endoleak after EVAR.The technical and clinical success rates were metaanalyzed with random effect model.Results A total of 6 articles with 268 patients and 290 type II endoleaks were included.The pooled odds ratio(OR)of technical success rate for TA vs.TL was 0.56(95%C7,0.10-3.18;P=0.51)and the pooled OR of clinical success rate for TA vs.TL was 0.31(95%CI,0.07-1.29;P=0.11).As a limitation,6 articles were all retrospective studies which may lead to bias.Conclusion Both TA.andTL could be eflective procedure of embolizations to resolve the type II endoleak.The metaanalysis result indicated that TA embolization was not inferior toTL embolization in technical success and clinical success. 展开更多
关键词 ENDOLEAK endovascular aneurysm repair EMBOLIZATION abdominal aortic aneurysm META-ANALYSIS
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Thoracic endovascular aortic repair with left subclavian artery reconstruction for blunt traumatic aortic injury in elderly patients 被引量:4
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作者 Li Zhang Huaping Wu +4 位作者 Xiang Li Kaiping Lv Huanhuan Song Cunliang Zeng Jianlin Liu 《Journal of Interventional Medicine》 2019年第4期150-153,共4页
Introduction:Blunt thoracic aortic injury(BTAI)is rare in elderly patients.As the population ages and life expectancy increases,the frequency of this injury will increase,while the treatment and outcomes remain unclea... Introduction:Blunt thoracic aortic injury(BTAI)is rare in elderly patients.As the population ages and life expectancy increases,the frequency of this injury will increase,while the treatment and outcomes remain unclear.Methods:We retrospectively analyzed the collected data of patients>60 years old with BTAI to investigate the mechanism of trauma;time interval from injury to diagnosis;type and timing of surgical intervention;aortic arch pattern;choice of left subclavian artery reconstruction;endograft to treat BTAI;length of the endovascular procedure;endoleaks;complications including stroke,paraplegia,and renal failure;length of hospital stay(LOS)and intensive care unit stay(L.ICUS);and 30-day mortality.Results:Five elderly trauma patients were found to have BTAI.Four(80%)were males,the cohort mean age was68 years,the major mechanism of trauma was fall injury,and the associated injury was thoracic trauma.All patients were transferred to our hospital,and emergency computed tomography angiography showed BTAI in each patient.The average time interval from injury to diagnosis was 2.7 days.Two patients suddenly showed signs of instability in their vital signs and underwent immediate endovascular repair,while 3 patients underwent delayed endovascular repair.The injury site was located in the aortic isthmus just distal to the origin of the left subclavian artery;the aortic arch pattern was II(80.0%)in 4 cases and III in 1 case(20.0%).The choice of left subclavian artery reconstruction included chimney,double chimney,prefenestration,and chimney combined with in situ fenestration.Endografts to treat BTAI included the Ankura(Lifetech Scientific,Shenzhen,China)and the C-TAG(W.L.Gore&Associates,Flagstaff,AZ USA).The length of the endovascular procedure was 75.4 min;there were no endoleaks and no complications including stroke,paraplegia,or renal failure.The average LOS was25 days,and the average L.ICUS of 2 patients was 15 days,with no 30-day mortality.Conclusion:Elderly patients with fall injury should promptly exclude BTAI.Thoracic endovascular aortic repair(TEVAR)with a left subclavian artery reconstruction technique provided good results without procedure-related or neurological complications.Because of the low incidence of this type of injury,we are unable to provide any evidence to guide the treatment option for this life-threatening condition. 展开更多
关键词 BLUNT TRAUMATIC aortic injury THORACIC ENDOVASCULAR repair RECONSTRUCTION of left SUBCLAVIAN artery
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Assessment of stable coronary artery disease by cardiovascular magnetic resonance imaging: Current and emerging techniques 被引量:7
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作者 James RJ Foley Sven Plein John P Greenwood 《World Journal of Cardiology》 CAS 2017年第2期92-108,共17页
Coronary artery disease(CAD) is a leading cause of death and disability worldwide. Cardiovascular magnetic resonance(CMR) is established in clinical practice guidelines with a growing evidence base supporting its use ... Coronary artery disease(CAD) is a leading cause of death and disability worldwide. Cardiovascular magnetic resonance(CMR) is established in clinical practice guidelines with a growing evidence base supporting its use to aid the diagnosis and management of patients with suspected or established CAD. CMR is a multi-parametric imaging modality that yields high spatial resolution images that can be acquired in any plane for the assessment of global and regional cardiac function, myocardial perfusion and viability, tissue characterisation and coronary artery anatomy, all within a single study protocol and without exposure to ionising radiation. Advances in technology and acquisition techniques continue to progress the utility of CMR across a wide spectrum of cardiovascular disease, and the publication of large scale clinical trials continues to strengthen the role of CMR in daily cardiology practice. This article aims to review current practice and explore the future directions of multi-parametric CMR imaging in the investigation of stable CAD. 展开更多
关键词 Cardiovascular magnetic resonance Coronary heart disease Myocardial perfusion VIABILITY PROGNOSIS
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Incidence and trends of cardiovascular mortality after common cancers in young adults:Analysis of surveillance, epidemiology and end-results program 被引量:2
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作者 Sadeer G Al-Kindi Guilherme H Oliveira 《World Journal of Cardiology》 CAS 2016年第6期368-374,共7页
AIM: To describe the incidence of cardiovascular mortality(CVM) in survivors of major cancers and identify its trends over the past two decades. METHODS: We used the surveillance, epidemiology and end-results 19 regis... AIM: To describe the incidence of cardiovascular mortality(CVM) in survivors of major cancers and identify its trends over the past two decades. METHODS: We used the surveillance, epidemiology and end-results 19 registry to identify young adults(20-49 years), diagnosed with the following major primary cancers: Lung, breast, liver/intrahepatic bile duct, pancreas, prostate, colorectal, and ovarian from 1990 through 2012 and identified the cumulative incidence of CVM after adjusting for confounding factors. RESULTS: We identified a total of 301923 cancers(breast 173748, lung 38938, colorectal 31722, prostate 22848, ovary 16065, liver 9444, pancreas 9158). A total of 2297(0.8%) of patients had incident CVM. Lung(10-year cumulative CVM 2.4%) and liver(1.73%) cancers had the highest incidence of CVM, while breast(0.6%) and prostate(1.2%) had the lowest CVM mortality, even after multiple adjustments(P < 0.001). Overall, there was a significant improvement in CVM since 1990 [2005-2012 vs 1990-1994, adjusted HR 0.63(0.54-0.72), P < 0.001]. This was driven by improvements in CVM in lung cancers(P = 0.02), breast(P < 0.001), and a trend in ovarian cancer(P = 0.097).There was no statistically significant improvement in CVM among survivors of colorectal, pancreatic, liver, or prostate cancers.CONCLUSION: The risk of CVM differs among different cancers, and is highest among survivors of lung and liver cancers. The incidence of CVM has decreased over the past 2 decades mainly among survivors of lung and breast cancers. 展开更多
关键词 CARDIOVASCULAR disease CANCER Trends CARDIOVASCULAR mortality Type of CANCER
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