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1.
J Endovasc Ther ; : 15266028241252007, 2024 May 11.
Artigo em Inglês | MEDLINE | ID: mdl-38733298

RESUMO

PURPOSE: The impact of carotid revascularization on cognitive function for patients with severe carotid artery stenosis remains uncertain. This study is aimed to investigate the 1-year neurocognitive outcomes of patients who accept carotid revascularization and identify the risk factors associated with postoperative cognitive decline. METHODS: From April 2019 to April 2021, patients with ≥70% carotid artery stenosis who were treated with carotid endarterectomy (CEA) or carotid artery stenting (CAS) were recruited for this study. The Montreal Cognitive Assessment (MoCA) instrument was used to evaluate cognitive function preoperatively and at 3, 6, and 12 months postoperatively. Logistic regression analysis was built to identify potential risk factors for postoperative long-term cognitive decline. RESULTS: A total of 89 patients who met the criteria were enrolled and completed 1-year follow-up. At 3, 6, and 12 months after carotid revascularization, the total MoCA score, attention, language fluency, and delayed recall score were significantly improved compared with the baseline scores (p<0.05). At 12 months, there was also a significant improvement in cube copying compared with baseline (p=0.034). Logistic regression analysis showed that the advancing age, left side, and symptomatic carotid artery stenosis were independent risk factors for cognitive deterioration at 12 months after surgery. CONCLUSIONS: Overall, carotid revascularization has a beneficial effect on cognition function in patients with severe carotid artery stenosis, while advancing age, left side, and symptomatic carotid artery stenosis were significantly related to a decreased cognitive score after carotid revascularization. CLINICAL IMPACT: This study focused on the changes in cognitive function within 1 year after carotid revascularization in patients with severe carotid stenosis. Of course, carotid revascularization can improve the cognition function in these patients. On the other hand, we found the advancing age, left side and symptomatic carotid artery stenosis were significantly associated with decreased cognitive scores at 1 year after carotid revascularization, which suggests that clinicians may need to be aware of patients with these characteristics.

2.
BMC Nephrol ; 25(1): 127, 2024 Apr 10.
Artigo em Inglês | MEDLINE | ID: mdl-38600468

RESUMO

OBJECTIVE: This study aims to establish and validate a nomogram model for the all-cause mortality rate in patients with diabetic nephropathy (DN). METHODS: We analyzed data from the National Health and Nutrition Examination Survey (NHANES) spanning from 2007 to 2016. A random split of 7:3 was performed between the training and validation sets. Utilizing follow-up data until December 31, 2019, we examined the all-cause mortality rate. Cox regression models and Least Absolute Shrinkage and Selection Operator (LASSO) regression models were employed in the training cohort to develop a nomogram for predicting all-cause mortality in the studied population. Finally, various validation methods were employed to assess the predictive performance of the nomogram, and Decision Curve Analysis (DCA) was conducted to evaluate the clinical utility of the nomogram. RESULTS: After the results of LASSO regression models and Cox multivariate analyses, a total of 8 variables were selected, gender, age, poverty income ratio, heart failure, body mass index, albumin, blood urea nitrogen and serum uric acid. A nomogram model was built based on these predictors. The C-index values in training cohort of 3-year, 5-year, 10-year mortality rates were 0.820, 0.807, and 0.798. In the validation cohort, the C-index values of 3-year, 5-year, 10-year mortality rates were 0.773, 0.788, and 0.817, respectively. The calibration curve demonstrates satisfactory consistency between the two cohorts. CONCLUSION: The newly developed nomogram proves to be effective in predicting the all-cause mortality risk in patients with diabetic nephropathy, and it has undergone robust internal validation.


Assuntos
Diabetes Mellitus , Nefropatias Diabéticas , Humanos , Inquéritos Nutricionais , Nomogramas , Ácido Úrico , Albuminas
3.
J Endovasc Ther ; : 15266028231197396, 2023 Sep 09.
Artigo em Inglês | MEDLINE | ID: mdl-37688486

RESUMO

OBJECTIVE: The objective of this study was to summarize whether the application of additional intravascular ultrasound (IVUS) can change the outcomes of endovascular treatment in femoropopliteal atherosclerotic lesions compared with conventional angiography alone based on the existing study and evidence. METHODS: Studies published until September 2022 were searched from PubMed, Embase, and Cochrane databases using the methods of combination of Medical Subject Headings and free text words. The outcomes included in these studies were primary patency rate or restenosis rate and freedom from clinically driven target lesion revascularization (cdTLR) rate, and most studies were concerned about the 12-month results. Two independent authors conducted the process of study selection. And the pooled analysis was attempted. RESULTS: Finally, the inclusion criteria were met by 4 studies (1 randomized controlled trial and 3 retrospective studies) involving 1160 patients. IVUS played its role in measuring lesions and/or guiding wiring passage. Most of the included studies showed that IVUS could achieve a higher 12-month primary patency rate (from 70% to 90%) and higher 12-month freedom from cdTLR rate (from 83.9% to 94.7%) than angiography. The tentative pooled analysis also showed that IVUS significantly improved the 12-month primary patency rate (OR: 2.21, 95%CI: [1.38-3.55], p=0.001) and the 12-month freedom from cdTLR rate (OR: 1.70, 95%CI [1.04-2.78], p=0.03) compared with angiography alone. CONCLUSIONS: Intravascular ultrasound-guided endovascular treatment of femoropopliteal artery lesions may have its own advantages such as higher primary patency rate and freedom from cdTLR rate at 12 months. As a novel technology, IVUS is expected to become another beneficial option to guide clinicians performing endovascular therapy in addition to angiography and may achieve better clinical outcomes. More prospective and high-quality studies are needed in the future to investigate the role of IVUS in the process of femoropopliteal artery lesions endovascular treatment. CLINICAL IMPACT: This review summarized a few available studies to promote understanding of IVUS and reveal its potential. This novel technology shows the possibility of achieving better clinical outcomes than angiography in femoropopliteal artery lesions endovascular therapy such as higher 12-month primary patency rate shown in some studies. Currently, it is important to consider suitable technologies applied to individualized treatment. IVUS seems to provide clinicians additional option in clinical practice and benefit patients well in the future. And it needs us to conduct more high-quality studies to explore its roles and advantages in endovascular treatment.

4.
J Endovasc Ther ; : 15266028231208646, 2023 Nov 03.
Artigo em Inglês | MEDLINE | ID: mdl-37919946

RESUMO

PURPOSE: To evaluate 6-month outcomes of drug-coated balloon (DCB) angioplasty of infrapopliteal lesions in patients with chronic limb-threatening ischemia (CLTI). METHODS: We analyzed 6-month follow-up data from the 10-center PRIME-WIFI prospective registry on 300 consecutive patients (33.000% female) with CLTI who underwent DCB angioplasty for infrapopliteal arterial lesions. The primary outcome was freedom from major adverse event (MAE), a composite of major amputation, all-cause death, and clinically-driven target limb reintervention (CD-TLR). Secondary outcomes included amputation-free survival (AFS), freedom from each primary outcome component, primary sustained clinical improvement, and quality of life (QOL) score. Independent risk factors of MAE were determined using Cox proportional hazards regression analysis. RESULTS: A total of 409 infrapopliteal lesions in 312 limbs were treated with DCB, with 54.167% of the limbs being treated for isolated infrapopliteal lesions. By Kaplan-Meier analysis, at 6 months post- procedure (follow-up rate, 85.000%), freedom from MAE was 86.353%; AFS was 90.318%; and freedom from major amputation, all-cause death, and CD-TLR were 96.429%, 93.480%, and 95.079%, respectively. At 6-month follow-up, 83.590% of patients showed primary sustained clinical improvement, and QOL score (4.902±1.388) improved compared with that before procedure (2.327±1.109; p<0.001). Chronic renal insufficiency, chronic obstructive pulmonary disease, Rutherford grade, and postoperative infrapopliteal runoff score were independent risk factors for MAE within 6 months. CONCLUSION: In CLTI, DCB angioplasty of infrapopliteal lesions yields acceptable early efficacy and safety. CLINICAL IMPACT: This study evaluated the 6-month outcomes of DCB angioplasty in infrapopliteal lesions in CLTI patients by analyzing multicenter prospective data, showing that infrapopliteal DCB angioplasty can be performed with acceptable freedom from MAE rate, amputation-free survival rate, freedom from major amputation rate, survival rate, and freedom from CD-TLR rate. No patient experienced DCB-related intraoperative distal embolism. Chronic renal insufficiency, chronic obstructive pulmonary disease, Rutherford grade and postoperative infrapopliteal runoff score were independent risk factors for MAE within 6 months. Comparative real-world studies are needed.

5.
Vascular ; 31(1): 122-130, 2023 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-34846234

RESUMO

OBJECTIVES: We used single-center data to evaluate the long-term outcome of percutaneous transluminal angioplasty (PTA) for pediatric renovascular hypertension (RVH) and to analyze the factors that influence effectiveness. METHODS: We retrospectively evaluated 33 pediatric RVH patients (18 boys; mean age: 9.1 ± 4 years, range: 2-16) who underwent PTA from January 2007 to December 2019. 15 patients had Takayasu arteritis (TA) and 18 were non-TA. The median follow-up from the initial PTA was 69 months (range: 12-157; IQR: 25.5-89). RESULTS: The technical success rate of 52 PTA procedures was 90.4% in 33 children. Renal artery stents were implanted in two patients, external guidewires were used in two patients, and a drug-coated balloon was used in only one patient. The overall effective rate of PTA was 63.6%, including cured 39.4% and improved 24.2%, at the end of follow-up. Overall clinical outcomes were not statistically different between the TA and non-TA groups (p = 0.316), nor were cure rates (p = 0.072). 15 patients received reintervention due to restenosis after the first successful PTA; the interval was 2-56 months (median: 12 months). Four patients received reintervention due to a failed PTA. A total of four patients received open surgery. Binary logistics regression analysis showed that stenosis length and residual stenosis rate were strongly correlated with effective PTA (p = 0.045, p = 0.044). CONCLUSIONS: As a primary treatment for pediatric RVH, PTA can achieve satisfactory results, which are influenced by lesion length and residual stenosis rate.


Assuntos
Angioplastia com Balão , Hipertensão Renovascular , Obstrução da Artéria Renal , Arterite de Takayasu , Masculino , Humanos , Criança , Pré-Escolar , Adolescente , Hipertensão Renovascular/diagnóstico por imagem , Hipertensão Renovascular/etiologia , Angioplastia com Balão/efeitos adversos , Angioplastia com Balão/métodos , Estudos Retrospectivos , Constrição Patológica , Resultado do Tratamento , Angioplastia/efeitos adversos , Obstrução da Artéria Renal/diagnóstico por imagem , Obstrução da Artéria Renal/terapia
6.
Catheter Cardiovasc Interv ; 100(2): 279-289, 2022 08.
Artigo em Inglês | MEDLINE | ID: mdl-35730645

RESUMO

OBJECTIVE: In-stent restenosis (ISR) remains a challenge in the treatment of vertebral artery V1 segment stenosis. The aim of this meta-analysis is to identify the risk factors of ISR. METHODS: Studies eligible for inclusion criteria were found in PubMed, Embase, and Cochrane Library databases. Data related to risk factors of ISR were extracted from the included studies, and pooled analysis was performed when data of the same factor were available in ≥2 studies. Dichotomous outcomes were analyzed with odds ratios (OR) and continuous outcomes were analyzed with a weighted mean difference (WMD). The Stata 14.0 program was used for the meta-analysis. RESULTS: A total of 11 studies involving 1356 patients were included in our analysis. Pooled analyses showed that younger age (p = 0.01; WMD= -1.958; 95% confidence interval [CI], -3.453 to -0.463) and V1 tortuosity (p = 0.004; OR = 4.145; 95% CI, 1.56-11.012) significantly associated with higher risk of ISR in V1 segment stenting. While bare-metal stents, stent diameter and length, diabetes mellitus, coronary artery disease, and smoking were not found to increase ISR rates. CONCLUSIONS: This meta-analysis showed that young age and V1 tortuosity increase the ISR rates after vertebral V1 segment stenting.


Assuntos
Reestenose Coronária , Stents Farmacológicos , Insuficiência Vertebrobasilar , Constrição Patológica/complicações , Reestenose Coronária/etiologia , Stents Farmacológicos/efeitos adversos , Humanos , Fatores de Risco , Stents/efeitos adversos , Resultado do Tratamento , Artéria Vertebral/diagnóstico por imagem , Insuficiência Vertebrobasilar/diagnóstico por imagem , Insuficiência Vertebrobasilar/terapia
7.
J Vasc Interv Radiol ; 33(6): 640-647, 2022 06.
Artigo em Inglês | MEDLINE | ID: mdl-35314368

RESUMO

PURPOSE: To evaluate the safety and efficacy of covered stents for treatment of visceral artery aneurysms (VAA). METHODS: This multicenter retrospective study included patients with VAAs who were treated with covered stents between January 2015 and December 2020. A total of 65 patients (mean age, 58 years; range, 27-89 years) with 70 VAAs (60 true aneurysms [86%], 10 pseudoaneurysms [14%]) were included. Of the 65, 48 patients (74%) were asymptomatic. Patient demographics, endovascular treatments, and follow-up results were analyzed. RESULTS: All patients received covered stents. The mean diameter was 2.9 cm (range, 1.0-7.6 cm) for symptomatic aneurysms and 2.5 cm (range, 1.0-9.0 cm) for asymptomatic aneurysms. Of the asymptomatic aneurysms, 89% had a saccular shape. The mean distance between the ostium of the artery in which the aneurysm occurred and the aneurysm was 3.9 cm (median, 3.0 cm; range, 0.5-10 cm). Additional coil embolization was used in 7 aneurysms (10%). During the procedure, 68 (97%) aneurysms were completely excluded, while 2 (3%) had a Type Ib endoleak. After a mean follow-up of 20 months (range, 1-75 months), all patients were asymptomatic. Four endoleaks were recorded and left for close observation. Four stents (7%) had mild restenosis, while the rest of the stents were patent. CONCLUSIONS: Placement of covered stents in patients with VAAs excluded aneurysms and maintained artery patency.


Assuntos
Aneurisma , Implante de Prótese Vascular , Procedimentos Endovasculares , Aneurisma/diagnóstico por imagem , Aneurisma/etiologia , Aneurisma/terapia , Artérias/cirurgia , Implante de Prótese Vascular/efeitos adversos , Implante de Prótese Vascular/métodos , Procedimentos Endovasculares/efeitos adversos , Humanos , Pessoa de Meia-Idade , Estudos Retrospectivos , Stents , Fatores de Tempo , Resultado do Tratamento , Vísceras/irrigação sanguínea
8.
Ann Vasc Surg ; 80: 393.e1-393.e4, 2022 Mar.
Artigo em Inglês | MEDLINE | ID: mdl-34775027

RESUMO

Takayasu arteritis (TA) is a chronic type of systemic large vessel vasculitis, mainly involving the aorta and its main branches. Both surgical and endovascular revascularization are effective methods for treating TA-related stenosis of the aorta and its branches. By December 2020, there have been very limited reports on the use of coated Cheatham-Platinum (CP) stents in the treatment of TA associated descending thoracic aortic stenosis. Two children with thoracic aortic stenosis caused by TA who received the covered CP stent in Xuanwu Hospital of Capital Medical University were reported. The follow-up time was 1.5 years and 4 years, respectively. The covered cheatham-platinum (CP) stent may be an alternative treatment for TA associated children with descending aortic stenosis.


Assuntos
Aorta Torácica/cirurgia , Constrição Patológica/cirurgia , Stents , Arterite de Takayasu/complicações , Aorta Torácica/patologia , Cateterismo Cardíaco , Criança , Materiais Revestidos Biocompatíveis , Constrição Patológica/etiologia , Feminino , Humanos , Platina , Desenho de Prótese , Resultado do Tratamento
9.
Ann Vasc Surg ; 85: 49-56, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35568326

RESUMO

BACKGROUND: To investigate cognitive changes after carotid revascularization in elderly patients with asymptomatic carotid artery stenosis. We also compared cognitive outcomes of carotid endarterectomy CEA with stenting in asymptomatic patients. METHODS: From April 2019 to December 2019, patients with ≥70% asymptomatic carotid stenosis who were treated with CEA or CAS, were recruited for this study. The Montreal cognitive assessment (MoCA) instrument was used to evaluate cognitive function preoperatively and postoperatively at 3, 6, and 12 months. The incidence of ipsilateral ischemic cerebrovascular events and restenosis were analyzed within 12 months. RESULTS: In 50 patients treated with CEA or carotid artery stenting CAS, baseline cognitive function was not different between CEA and CAS groups (P > 0.05). There was no difference in the incidence of ipsilateral ischemic cerebrovascular events and restenosis within the first 12 months between the two groups. There was a significant improvement in the total MoCA score, scores of attention, and delayed recall at 3, 6 and 12 months after revascularization compared with scores at baseline (all P < 0.001). At 12 months, scores of cube copying and clock drawing were significantly improved (P = 0.014, P = 0.020). The clock drawing score was improved at 12 months after CAS compared with CEA (P = 0.040). CONCLUSIONS: Carotid revascularization has a beneficial effect on cognition in asymptomatic patients within 12 months of the procedure. Compared with CEA, CAS show improved test scores of executive functioning by 1 year.


Assuntos
Estenose das Carótidas , Endarterectomia das Carótidas , Acidente Vascular Cerebral , Idoso , Artérias Carótidas , Estenose das Carótidas/complicações , Estenose das Carótidas/diagnóstico por imagem , Estenose das Carótidas/cirurgia , Cognição , Endarterectomia das Carótidas/efeitos adversos , Humanos , Fatores de Risco , Stents , Acidente Vascular Cerebral/etiologia , Resultado do Tratamento
10.
Vascular ; 30(1): 115-119, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-33530885

RESUMO

BACKGROUND: The main cause of severe chronic venous insufficiency is deep venous incompetence. Deep venous reconstructive surgeries are reserved for cases that do not show a good response to conservative therapies. METHOD: We present the case of a 68-year-old man presenting with swelling, pain, and pigmentation in his left lower limb for 14 years and ulcers for 10 years. Descending venography identified a Kistner's grade IV reflux in the deep vein of the left lower limb. Internal valvuloplasty was performed following Kistner's method. Meanwhile, external wrapping with a 1-cm-wide polyester-urethane vascular patch was performed to strengthen the vein wall in the venospasm condition. RESULTS: Symptoms were immediately relieved postoperatively. Refractory ulcers healed five months after the procedure. At the six-month follow-up, color duplex ultrasound of the deep vein of the left lower limb showed no reflux in the proximal segment of the femoral vein. CONCLUSION: Internal valvuloplasty combined with sleeve wrapping is feasible in the treatment of severe deep venous incompetence with good short-term results.


Assuntos
Insuficiência Venosa , Idoso , Veia Femoral/cirurgia , Humanos , Extremidade Inferior/irrigação sanguínea , Masculino , Flebografia , Procedimentos Cirúrgicos Vasculares/métodos , Insuficiência Venosa/diagnóstico por imagem , Insuficiência Venosa/cirurgia
11.
Vasa ; 51(5): 275-281, 2022 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-35801303

RESUMO

Background: The present study evaluated the prognosis of directional atherectomy (DA)+drug-coated balloon (DCB) angioplasty for femoropopliteal artery lesions compared with bare nitinol stent (BNS). Patients and methods: This retrospective cohort study included patients with femoropopliteal artery lesions who underwent percutaneous endovascular surgery between January 2016 and June 2019. The primary outcome was the primary patency rate after 12, 24, and 36 months; the secondary outcomes comprised incidence of flow-limiting dissections, technical success, limb salvage, and all-cause death. Results: During the study period, 110 (44%) patients underwent DA+DCB, and 140 (56%) patients underwent bare nitinol stent (BNS). There were no differences in the 12- and 24-month patency rates of the two groups (98.2% vs. 93.6% and 68.2% vs. 60.0%, both p>.05). The 36-month primary patency rate in the DA+DCB group was significantly higher than that of the BNS group (27.3% vs. 15.7%, p=.003). The technical success rate and all-cause death were similar between groups (p>.05). Flow-limiting dissections occurred more frequently in the BNS group than in the DA+DCB group (27.9% vs. 10.9%, p=.033). After adjustment for potential confounders, such as sex, smoking, hypertension, hyperlipidemia, ABI after surgery, TASC II B, lesion length ≥15 cm, two-vessel runoff, and three-vessel runoff, the HR for primary patency rate comparing BNS to DA+DCB was 2.61 (95%CI: 1.61-4.25). Conclusions: In this retrospective cohort study, DA+DCB was associated with a higher 30-month primary patency rate and a lower flow-limiting dissection incidence than BNS.


Assuntos
Angioplastia com Balão , Doença Arterial Periférica , Ligas , Angioplastia com Balão/efeitos adversos , Aterectomia/efeitos adversos , Materiais Revestidos Biocompatíveis , Artéria Femoral , Humanos , Doença Arterial Periférica/diagnóstico por imagem , Doença Arterial Periférica/terapia , Artéria Poplítea , Estudos Retrospectivos , Stents , Resultado do Tratamento , Grau de Desobstrução Vascular
12.
J Vasc Surg ; 74(4): 1417-1424.e1, 2021 10.
Artigo em Inglês | MEDLINE | ID: mdl-33864826

RESUMO

OBJECTIVE: Peripheral artery disease (PAD) affects more than 200 million people worldwide, among whom more than two-thirds reside in low- and middle-income countries. China, as the largest low- and middle-income country, faces a challenge from the burden of PAD as the country undergoes economic expansion. We compared the patterns of PAD between China and Western countries to determine if there are differences in risk factors, awareness, or treatment of PAD. METHODS: Literature searches were performed both in English databases and Chinese databases covering January 1, 1995, to March 1, 2020. Both landmark and high-quality articles were evaluated. RESULTS: The prevalence of PAD in high-income countries increases linearly with age, whereas PAD increases slowly until the middle 60s and exponentially thereafter in China. In contrast with Western countries, the prevalence of PAD in China is reported to be higher in women than in men. There is a higher prevalence of risk factors in China, but the rates of awareness and treatment of these risk factors are low. CONCLUSIONS: The lack of awareness and lower rates of treatment and control of PAD and its risk factors in China may be underlying the higher prevalence of PAD in women than in men as well as the steep increase in PAD after the middle 60s. In all countries, more attention should be paid to the planning and implementation of preventative strategies and clinical services. The societal and economic effects of PAD are considerable and ongoing studies are needed to help curtail the burden of this disease.


Assuntos
Doença Arterial Periférica/epidemiologia , Adulto , Distribuição por Idade , Fatores Etários , Idoso , Idoso de 80 Anos ou mais , China/epidemiologia , Comorbidade , Feminino , Humanos , Estilo de Vida , Masculino , Pessoa de Meia-Idade , Doença Arterial Periférica/diagnóstico por imagem , Doença Arterial Periférica/terapia , Prevalência , Prognóstico , Medição de Risco , Fatores de Risco , Distribuição por Sexo , Fatores Sexuais , Ocidente
13.
Ann Vasc Surg ; 62: 499.e15-499.e20, 2020 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-31536794

RESUMO

Deep venous thrombosis rarely occurs in conjunction with other vascular anomalies, and is therefore an understudied area. Although arteriovenous fistulae (AVFs) most commonly arise from congenital defects or as a result of trauma, some reports suggest that they may form in association with thrombosis of cerebral veins. In this report, we present a case of acquired pelvic and lower extremity AVFs following left common iliac vein thrombosis. The special feature of this case is that the patient received a series of treatments of which recanalization resulted in best clinical outcome. As a result of long-term follow-up (5 years), this case allows for a better understanding of the natural progression of this rare disease.


Assuntos
Fístula Arteriovenosa/terapia , Implante de Prótese Vascular , Embolização Terapêutica , Procedimentos Endovasculares , Veia Ilíaca , Extremidade Inferior/irrigação sanguínea , Pelve/irrigação sanguínea , Trombose Venosa/complicações , Anticoagulantes/uso terapêutico , Fístula Arteriovenosa/diagnóstico por imagem , Fístula Arteriovenosa/etiologia , Procedimentos Endovasculares/instrumentação , Feminino , Humanos , Veia Ilíaca/diagnóstico por imagem , Veia Ilíaca/fisiopatologia , Pessoa de Meia-Idade , Recidiva , Stents , Resultado do Tratamento , Pressão Venosa , Trombose Venosa/diagnóstico por imagem , Trombose Venosa/tratamento farmacológico , Trombose Venosa/fisiopatologia
14.
Ann Vasc Surg ; 66: 669.e17-669.e20, 2020 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-31978486

RESUMO

BACKGROUND: Extracranial carotid artery aneurysm is an extremely rare peripheral arterial aneurysm. The treatments of extracranial CAAs include open surgical, endovascular, and conservative options. Main surgical indications are transient ischemia attacks, strokes, or progressive growth. But both open surgery and endovascular repair have disadvantages and complications. METHODS: We report a case of true internal carotid artery aneurysm (ICAA) with hostile anatomic conditions for both open surgery and endovascular approach in a 53-year-old man who presented with new cerebral infarctions. According to the features of this case, the patient was treated with a new hybrid procedure with extra-luminal aneurysm repair. A sheath was inserted through the common carotid artery, maneuvered out of the lumen through the proximal landing zone of the ICAA, and then returned into the distal normal vessel of the internal carotid artery. A stent graft was delivered through the sheath and was deployed while retrieving the sheath. RESULTS: The aneurysm was repaired successfully with an uneventful postoperative course and no postprocedural complications. The patient has been followed up for 2 years with no symptom, and the stent was patent without restenosis. CONCLUSIONS: The procedure is feasible and provides a new solution for difficult cases like this.


Assuntos
Aneurisma/cirurgia , Angioplastia com Balão , Implante de Prótese Vascular , Doenças das Artérias Carótidas/cirurgia , Artéria Carótida Interna/cirurgia , Aneurisma/diagnóstico por imagem , Aneurisma/fisiopatologia , Angioplastia com Balão/instrumentação , Prótese Vascular , Implante de Prótese Vascular/instrumentação , Doenças das Artérias Carótidas/diagnóstico por imagem , Doenças das Artérias Carótidas/fisiopatologia , Artéria Carótida Interna/diagnóstico por imagem , Artéria Carótida Interna/fisiopatologia , Humanos , Masculino , Pessoa de Meia-Idade , Fluxo Sanguíneo Regional , Stents , Resultado do Tratamento
15.
Ann Vasc Surg ; 64: 181-187, 2020 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-31449956

RESUMO

BACKGROUND: The "leave nothing behind" strategies have been becoming a popular treatment for femoropopliteal arteriosclerosis obliterans. Atherectomy before drug-coated balloon (DCB) angioplasty may have an advantage in improving the efficiency of drug delivery into the blood vessel wall. This study aimed to compare the therapeutic effects of directional atherectomy combined with DCB angioplasty with DCB angioplasty alone in the treatment of femoropopliteal arteriosclerosis obliterans. METHODS: Patients with femoropopliteal arteriosclerosis obliterans who received endovascular therapy from June 2016 to June 2018 in our hospital and presented with life-limiting claudication or severe chronic limb ischemia comprised the study cohort. The patients were randomized to receive directional atherectomy combined with DCB angioplasty (n = 45) or DCB alone (n = 49). Ninety-four patients were enrolled in our study with 72 males, and the mean age was 67 ± 10 years. The mean lesion length was 112 ± 64 mm. RESULTS: There were no significant differences in the baseline characteristics of patients and lesions between the 2 randomized groups (P > 0.05). Flow-limiting dissections occurred more frequently in the DCB group (n = 12; 24.5%) than in the DA-DCB group (n = 2; 4.4%; P = 0.006). The technical success rate in the DA-DCB group was superior to that in the DCB group (95.6% vs. 75.5%, P = 0.006). The mean follow-up duration was 16.7 ± 6.1 months in the DCB group and 15.3 ± 5.8 months in the DA-DCB group. No amputations were performed. The overall mortality in the DCB group was 4.1% (2/49), while all patients survived in the DA-DCB group. The 12-month and 24-month primary patencies in the DA-DCB group were greater than those in the DCB group (80.5% vs. 75.7% and 67.1% vs. 55.1%, respectively); however, using all available patency data, no significant differences over time were observed (P = 0.377). CONCLUSIONS: In this study, directional atherectomy combined with DCB angioplasty can decrease the flow-limiting dissection rate in the treatment of femoropopliteal arteriosclerosis obliterans compared with DCB angioplasty alone. There was no significant difference between the 2 groups in terms of primary patency rate which was needed to be further clarified.


Assuntos
Angioplastia com Balão/instrumentação , Arteriosclerose Obliterante/terapia , Aterectomia , Fármacos Cardiovasculares/administração & dosagem , Materiais Revestidos Biocompatíveis , Artéria Femoral , Isquemia/terapia , Artéria Poplítea , Dispositivos de Acesso Vascular , Idoso , Angioplastia com Balão/efeitos adversos , Angioplastia com Balão/mortalidade , Arteriosclerose Obliterante/diagnóstico por imagem , Arteriosclerose Obliterante/mortalidade , Arteriosclerose Obliterante/fisiopatologia , Aterectomia/efeitos adversos , Aterectomia/mortalidade , Pequim , Fármacos Cardiovasculares/efeitos adversos , Doença Crônica , Feminino , Artéria Femoral/diagnóstico por imagem , Humanos , Claudicação Intermitente/diagnóstico por imagem , Claudicação Intermitente/mortalidade , Claudicação Intermitente/fisiopatologia , Claudicação Intermitente/terapia , Isquemia/diagnóstico por imagem , Isquemia/mortalidade , Isquemia/fisiopatologia , Masculino , Pessoa de Meia-Idade , Artéria Poplítea/diagnóstico por imagem , Estudos Prospectivos , Fatores de Tempo , Resultado do Tratamento , Grau de Desobstrução Vascular
16.
J Mater Sci Mater Med ; 31(8): 76, 2020 Aug 05.
Artigo em Inglês | MEDLINE | ID: mdl-32761269

RESUMO

Vascular grafts prepared from synthetic polymers have serious shortcomings that can be resolved by surface modification, such as by immobilizing heparin. In this study, the mechanical properties, biocompatibility, anticoagulation property, and water contact angle of two heparin-conjugated poly(ε-caprolactone) scaffolds (PCL-hexamethylendiamine-heparin, PCL-HMD-H. PCL-lysine-heparin, PCL-LYS-H) were compared to identify a preferred heparin conjugation method. An evaluation of the subcutaneous tissue biocompatibility of the scaffolds demonstrated that PCL-HMD-H had better endothelial cell proliferation than the PCL-LYS-H and was therefore a promising scaffold candidate for use in vascular tissue-engineering.


Assuntos
Heparina/química , Poliésteres/química , Tela Subcutânea/efeitos dos fármacos , Alicerces Teciduais , Animais , Prótese Vascular/efeitos adversos , Adesão Celular/efeitos dos fármacos , Movimento Celular/efeitos dos fármacos , Proliferação de Células/efeitos dos fármacos , Células Cultivadas , Heparina/farmacologia , Células Endoteliais da Veia Umbilical Humana , Humanos , Masculino , Teste de Materiais , Modelos Animais , Poliésteres/farmacologia , Polímeros/química , Polímeros/farmacologia , Implantação de Prótese/métodos , Ratos , Ratos Wistar , Engenharia Tecidual/métodos , Alicerces Teciduais/efeitos adversos , Alicerces Teciduais/química
17.
J Vasc Res ; 55(6): 338-349, 2018.
Artigo em Inglês | MEDLINE | ID: mdl-30485863

RESUMO

In the field of vascular graft research, poly-ε-caprolactone (PCL) is used owing to its good mechanical strength and biocompatibility. In this study, PCL scaffold was prepared by electrospinning and surface modification with heparin via hexamethylenediamine. Then the scaffolds were implanted into the infrarenal abdominal aorta of Wistar rats and contrast-enhanced micro-ultrasound was used to monitor the patency of grafts after implantation. These grafts were extracted from the rats at 1, 3, and 6 months for histological analysis, immunofluorescence staining, and scanning electron microscopy observation. Although some grafts experienced aneurysmal change, results showed that all implanted grafts were patent during the course of 6 months and these grafts demonstrated well-organized neotissue with endothelium formation, smooth muscle regeneration, and extracellular matrix formation. Such findings confirm feasibility to create heparin-conjugated scaffolds of next-generation vascular grafts.


Assuntos
Aorta Abdominal/cirurgia , Heparina/química , Poliésteres/química , Alicerces Teciduais/química , Remodelação Vascular , Animais , Anticoagulantes , Aorta Abdominal/diagnóstico por imagem , Aorta Abdominal/ultraestrutura , Materiais Biocompatíveis , Prótese Vascular , Endotélio Vascular/fisiologia , Matriz Extracelular/fisiologia , Microscopia Eletrônica de Varredura , Modelos Animais , Músculo Liso Vascular/fisiologia , Ratos , Ratos Wistar , Regeneração , Ultrassonografia , Enxerto Vascular/métodos
18.
Ann Vasc Surg ; 51: 65-71, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29501593

RESUMO

BACKGROUND: Despite increased interest in treating common femoral artery (CFA) with endovascular technology, there are little data regarding the long-term outcomes of different endovascular treatment modalities. We report the results after endovascular therapy of symptomatic obstructions of the CFA in a single center. METHODS: We retrospectively reviewed the records of consecutive patients with eligible CFA lesions who were treated with endovascular methods between 2011 and 2013. The preoperative demographic operative details and postoperative outcomes were compared and statistically analyzed. RESULTS: Ninety patients with CFA lesions were treated, and 76 (84.4%) completed a follow-up. Claudication was present in 62 of 76 (81.6%) patients, and stenosis was present in 60 of 76 (78.9%) patients. Angioplasty was performed in 45 patients, and atherectomy was performed in 31 patients. There was no significant difference in the preoperative demographic data, procedure time, contrast administration, or length of hospital stay between the 2 groups. In-hospital treatment costs were significantly higher in the atherectomy group (69,822 RenMinBi Yuan vs. 49,078 RenMinBi Yuan; P = 0.043). During the 4-year primary patency, for whole group or bifurcated/claudicant subgroup, all patients within the atherectomy group were significantly better than those in the angioplasty group. CONCLUSIONS: Atherectomy may be a better alternative to angioplasty for CFA atherosclerotic obstructions lesions. Compared with angioplasty, atherectomy seems to have better results in bifurcated lesions or claudicant patients. In diabetic patients, no superiority was found on either patency or improvement in walking distance.


Assuntos
Angioplastia com Balão , Aterectomia/métodos , Artéria Femoral/cirurgia , Claudicação Intermitente/cirurgia , Doença Arterial Periférica/cirurgia , Idoso , Angioplastia com Balão/efeitos adversos , Angioplastia com Balão/economia , Aterectomia/efeitos adversos , Aterectomia/economia , China , Constrição Patológica , Tolerância ao Exercício , Feminino , Artéria Femoral/diagnóstico por imagem , Artéria Femoral/fisiopatologia , Custos Hospitalares , Humanos , Claudicação Intermitente/diagnóstico por imagem , Claudicação Intermitente/economia , Claudicação Intermitente/fisiopatologia , Estimativa de Kaplan-Meier , Tempo de Internação , Masculino , Pessoa de Meia-Idade , Doença Arterial Periférica/diagnóstico por imagem , Doença Arterial Periférica/economia , Doença Arterial Periférica/fisiopatologia , Recuperação de Função Fisiológica , Estudos Retrospectivos , Fatores de Risco , Fatores de Tempo , Resultado do Tratamento , Grau de Desobstrução Vascular , Caminhada
19.
Ann Vasc Surg ; 51: 328.e7-328.e12, 2018 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-29777844

RESUMO

Budd-Chiari syndrome (BCS) is a rare but life-threatening disease. If not treated promptly, it is almost always lethal with progressive liver failure, severe nutritional depletion, and renal failure at the late stage. We report the successful treatment of a 5-year-old boy with BCS due to a stenosis of the inferior vena cava (IVC) with a 26-year follow-up. We performed a percutaneous transluminal angioplasty, which resulted in a great improvement of BCS and the disappearance of ascites. Restenosis occurred at 25 years after the initial angioplasty, for which balloon angioplasty was repeatedly performed. The IVC was patent at 1-year follow-up after the second angioplasty.


Assuntos
Angioplastia com Balão , Síndrome de Budd-Chiari/terapia , Veia Cava Inferior , Adulto , Angiografia Digital , Síndrome de Budd-Chiari/diagnóstico por imagem , Síndrome de Budd-Chiari/fisiopatologia , Pré-Escolar , Humanos , Masculino , Flebografia/métodos , Recidiva , Retratamento , Fatores de Tempo , Resultado do Tratamento , Grau de Desobstrução Vascular , Veia Cava Inferior/diagnóstico por imagem , Veia Cava Inferior/fisiopatologia
20.
J Stroke Cerebrovasc Dis ; 27(5): 1296-1301, 2018 May.
Artigo em Inglês | MEDLINE | ID: mdl-29428329

RESUMO

BACKGROUND: Patients presenting a carotid stenosis and contralateral carotid occlusion (CCO) have been historically considered at high risk of carotid surgical treatment, and there are few data regarding short-term recovery after stenting therapy in patients with CCO. The aim of this study is to evaluate the short-term recovery and safety of stenting for patients with CCO and different subgroup population. METHODS: We retrospectively reviewed the records of consecutive patients with CCO who were treated with stenting endovascular methods between 2008 and 2014. The postoperative outcomes were analyzed according to age, ischemic symptom, cerebral infarction history, and collateral situation subgroups, respectively. RESULTS: Fifty-eight consecutive patients with CCO were treated and 49 (84.5%) completed a 3-year follow-up. There were significant higher stroke, myocardial infarction, or death events in the aged (≥75 years old) group and poor collateral group (P = .007 and .0024, respectively). There was no difference in the 3-year primary endpoint incidence between the cerebral ischemia symptom subgroups and cerebral infarction history subgroups. Event-free survival, aged group, and poor collateral group were lower (P = .007 and P = .0024, respectively). CONCLUSIONS: Carotid artery stenting (CAS) for patients with common carotid artery is a safe and effective therapy. Factors such as age 75 years or older and poor collateral are associated with a higher 3-year rate of postprocedural stroke, myocardial infarction and death, and lower event-free survival in patients with CCO treated by CAS. Meanwhile, our data do not show a significant impact of cerebral ischemic symptom and cerebral infarction history on clinical outcome of patients with CCO undergoing CAS.


Assuntos
Angioplastia com Balão/instrumentação , Estenose das Carótidas/terapia , Stents , Fatores Etários , Idoso , Angioplastia com Balão/efeitos adversos , Angioplastia com Balão/mortalidade , Estenose das Carótidas/diagnóstico , Estenose das Carótidas/mortalidade , Estenose das Carótidas/fisiopatologia , Circulação Cerebrovascular , Tomada de Decisão Clínica , Circulação Colateral , Bases de Dados Factuais , Intervalo Livre de Doença , Feminino , Humanos , Estimativa de Kaplan-Meier , Masculino , Pessoa de Meia-Idade , Infarto do Miocárdio/etiologia , Seleção de Pacientes , Estudos Retrospectivos , Fatores de Risco , Acidente Vascular Cerebral/etiologia , Fatores de Tempo , Resultado do Tratamento
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