Clinical outcomes of MANTA vs suture-based vascular closure devices after transcatheter aortic valve replacement: An updated meta-analysis

Objective: A recently published randomized control trial showed different results with suture-based vascular closure device (VCD) than plug-based VCD in patients undergoing transfemoral transcatheter aortic valve replacement (TAVR). The learning curve for MANTA device is steep, while the learning curve for suture based VCD is shallow as the devices are quite different. In this meta-analysis, we have compared suture-based (ProGlide and Prostar XL) vs plug-based VCDs (MANTA). Methods: We performed a meta-analysis of all published studies (using PubMed/Medline and Cochrane databases) reporting the clinical outcome of plug-based vs suture-based VCDs in transfemoral TAVR patients. Results: We included nine studies with a total of 2865 patients (plug-based n ¼ 1631, suture-based n ¼ 1234). There was no significant difference in primary outcome of all bleeding when using plugbased as opposed to suture-based VCDs (RR 1.14 [0.62e2.06] I2 ¼ 72%). There was no significant difference in the incidence of secondary outcomes between two groups including major life threatening bleeding (RR 1.16 [0.38e3.58] I2 ¼ 65%), major vascular complications (RR 0.84 [0.35e2.00] I2 ¼ 55%), minor vascular complications (RR 1.05 [0.56e1.95] I2 ¼ 42%), pseudo aneurysm (RR 1.84 [0.11e29.98] I 2 ¼ 44%), stenosis-dissection (RR 0.98 [0.66e1.47] I2 ¼ 0%), VCD failure (RR 1.71 [0.96e3.04] I2 ¼ 0%), and blood transfusion (RR 1.01 [0.38e2.71], I2 ¼ 61%). Conclusion: Large bore arteriotomy closure with plug-based VCD was not superior to suture-based VCDs in this transfemoral TAVR population. There was very frequent use of secondary VCDs in suture-based VCD group which is not practical when using MANTA. Additional high-powered studies are required to determine the safety and efficacy of MANTA device.

Efficacy analysis of jejunal side anastomosis combined with jejunal nutrition tube in gastric cancer surgery / 中国综合临床

Objective:To investigate the adverse reactions and postoperative inflammatory reactions of Bill-Roth Ⅱ (BⅡ) gastroenterostomy with jejunal anastomosis and jejunal nutrient tube placement using linear cutting and closing device in gastric cancer surgery.Methods:A retrospective case-control study was conducted on 93 patients undergoing gastric cancer surgery in The Affiliated Hospital of North China University of Science and Technology from February 2017 to April 2020. According to 2016 (American Joint Committee on Cancer/Universal Integrated Circuit Card) AJCC/UICC, (Tumor, Node, stage; Tumor lymph node metastasis; Distant metastasis) TNM, there were 11 cases in stage ⅠA, 14 cases in stage ⅠB, 13 cases in stage ⅡA, 15 cases in stage ⅡB, 11 cases in stage ⅢA, 13 cases in stage ⅢB, and 16 cases in stage ⅢC. There were 51 cases of gastric antrum carcinoma, 26 cases of gastric body carcinoma and 16 cases of gastric pylorus carcinoma. There were 27 cases of papillary adenocarcinoma, 26 cases of tubular adenocarcinoma, 22 cases of mucinous adenocarcinoma, 9 cases of signet-ring cell carcinoma, 7 cases of adenosquamous carcinoma, and 2 cases of squamous carcinoma. The patients were divided into experimental group (48 cases) and control group (45 cases) according to whether or not the linear cutting and closing device was added and jejunal anastomosis was performed and jejunal nutrition tube was placed. The gender composition, age, lesion site, pathological type, pathological stage, postoperative hospital stay and postoperative complications were compared between the two groups, and the white blood cell count WBC, C-reactive protein CRP on the 7th day after surgery, erythrocyte Sedimentation rate (ESR), tumor necrosis factor-α (TNF-α), interleukin-6 (IL-6) inflammation indicators were compared between the two groups.Results:There was no significant difference in gender composition, age, lesion location, pathological type and pathological stage between the two groups (all P>0.05). The incidence of abdominal pain, abdominal distension, nausea, vomiting and pleural effusion in 93 patients were 18.3%(17/93), 21.5%(20/93), 23.7%(22/93), 17.2%(16/93) and 18.3%(17/93), respectively. The complication rates of the above indexes in the two groups were 10.4% (5/48) Compared with 26.7% (12/45), 12.5% (6/48) and 31.1% (14/45), 15.6%(7/48) and 33.3% (15/45), 8.3%(4/48) and 26.7% (12/45), 8.3% (4/48) and 28.9% (13/45) (χ 2 values were 4.11, 4.77, 4.52, 4.27 and 5.27, respectively; P values were 0.043, 0.029, 0.033, 0.039 and 0.022, respectively). There was no significant difference in lower extremity venous thrombosis, anastomotic bleeding, accumulated pneumonia and incision dehiscence between the two groups ( P>0.05). WBC on the 7th day after operation in the experimental group and the control group (7.02±1.83)×10 9/L and (8.39±2.27)×10 9/L ( t=3.22, P=0.002), TNF-α (2.44±0.70) μg/L and (3.56±1.14) μg/L ( t=5.71, P<0.001), IL-6 (235.31±41.72) μg/L and (365.91±73.16) μg/L ( t=10.66, P<0.001) there was significant difference between the two groups. There was no significant difference in CRP and ESR between the two groups on the 7th day after operation ( P>0.05). The postoperative hospital stay between the experimental group and the control group was (13.88±2.81) d and (22.78±2.51) d, the difference was statistically significant ( t=16.07, P<0.001). Conclusion:The application of side-to-side jejunostomy combined with jejunal nutrition tube for enteral nutrition in gastric cancer surgery can reduce the occurrence of adverse reactions such as postoperative abdominal pain, abdominal distension, accumulated pneumonia, nausea, vomiting and pleural effusion, reduce the postoperative hospital stay and reduce the postoperative inflammatory reaction to a certain extent.

Research progress of vascular closure devices / 中国介入影像与治疗学

Vascular closure device is a kind of medical devices for hemostasis at the puncture site after percutaneous arterial puncture, including active vascular closure devices and passive vascular closure devices. The principle, application range, advantages and disadvantages of common products of vascular closure devices were reviewed in this paper.

Application of ExoSeal vascular closure device in interventional management via antegrade femoral access / 中国介入影像与治疗学

Objective To investigate the safety and clinical value of using ExoSeal vascular closure device (VCD) in interventional management via antegrade femoral access.Methods Clinical and imaging data of 303 patients (316 affected limbs) who were received interventional procedure via antegrade femoral access closure were retrospectively analyzed.ExoSeal VCD (VCD group,n=127) and manual compression (MC group,n =176) were performed to make femoral artery puncture point hemostasis.The time of hemostasis,actual immobilization time,technical success rate and vascular related complications were recorded and compared between the two groups.Results In VCD group and MC group,the time of hemostasis were (3.68 ± 2.40) min and (18.32 ± 4.54) min,the actual immobilization time were (3.45±5.30) h and (10.44±14.68) h,the technical success rates were 98.52％ (133/135) and 93.92％ (170/181),and the complication rates were 2.22％ (3/135) and 8.84％ (16/181),respectively.There were statistically significant differences between two groups (all P＜0.05).In VCD group,there were 2 cases of subcutaneous hematomas,and 1 case of retroperitoneal hematoma.In MC group,there were 15 cases of subcutaneous hematomas and 1 case of acute thrombosis in the puncture side limb.Conclusion Regarding hemostasis of puncture site in interventional management via antegrade femoral access,the use of ExoSeal VCD is safe and effective.

Clinical application of ExoSealTM vascular closure device in interventional management via retrograde femoral artery access / 介入放射学杂志

Objective To discuss the safety and efficacy of using ExoSealTM vascular closure device to obtain rapid hemostasis of puncture site in interventional procedure via retrograde femoral artery access.Methods The clinical data of 124 patients,who were admitted to authors' hospital during the period from March 2016 to April 2016 to receive interventional procedure via retrograde femoral artery access,were retrospectively analyzed.During the performance of intervention,ExoSealTM vascular closure device (ExoSealTM group,n=52) or manual compression (MC group,n=72) was employed to make femoral artery puncture point hemostasis.The time spent for hemostasis,the manual compression time,the limb immobilization time,the amount of blood loss during compression process,and the procedure-related complications were recorded and the results were compared between the two groups.Results Technical success rate in ExoSealTM group was 98.1％(51/52).In ExoSealTM group and MC group,the time spent for hemostasis was (0.28±0.08) min and (5.83±1.46) min respectively,the manual compression time was (2.65 ±0.57) min and (7.70± 1.88) min respectively,the limb immobilization time was (2.72±0.43) h and (6.15±0.69) h respectively;all the differences between the two groups were statistically significant (P＜0.01).In ExoSealTM group subcutaneous hemotoma occurred in one patient,while in MC group subcutaneous hemotoma occurred in 3 patients and pseudoaneurysm in one patient;the complication rates were 1.92％ (1/52) and 5.56％ (4/72) respectively,but the difference was not statistically significant (P＞0.05).In MC group the amount of blood loss during compression process was (1.11±0.86) ml,which was remarkably less than (7.83±2.08) ml in ExoSealTM group,the difference between the two groups was statistically significant (P＜0.01).Conclusion For hemostasis of puncture site in interventional management via retrograde femoral artery access,the use of ExoSealTM vascular closure device is safe and effective.

Total percutaneous endovascular aneurysm repair (pEVAR): the initial experience in Hospital Kuala Lumpur

Introduction: There has been a paradigm shift in the treatment of AAA with the advent of endovascular aneurysm repair (EVAR). Rapid progress and evolution of endovascular technology has brought forth smaller profile devices and closure devices. Total percutaneous endovascular aneurysm repair (pEVAR) involves the usage of suture-mediated closure devices (SMCDs) at vascular access sites to avoid a traditional surgical cutdown. Materials And Methods: We retrospectively reviewed our experience of pEVAR between April 2013 and July 2014. Primary success of the procedure was defined as closure of a common femoral artery (CFA) arteriotomy without the need for any secondary surgical or endovascular procedure within 30 days. Results: In total there were 10 pEVAR cases performed in the study period, one case in Queen Elizabeth Hospital during visiting vascular service. Patients have a mean age of 73.4 year old (66-77 year old) The mean abdominal aortic size was 7.2 cm (5.6-10.0cm). Mean femoral artery diameter was 9.0 mm on the right and 8.9 mm on the left. Mean duration of surgery was 119 minutes (98- 153 minutes). 50% of patients were discharged at post-operative day one, 30%- day two and 20%- day three. Primary success was achieved in 9 patients (90%) or in 19 CFA closures (95%). No major complication was reported. Discussion: We believe that with proper selection of patients undergoing EVAR, pEVAR offers a better option of vascular access with shorter operative time, less post- operative pain, shorter hospital stay and minimises the potential complications of a conventional femoral cutdown.

Endovascular Repair Using Suture-Mediated Closure Devices and Balloon Tamponade following Inadvertent Subclavian Artery Catheterization with Large-Caliber Hemodialysis Catheter

Accidental subclavian artery cannulation is an uncommon but potentially serious complication of central venous catheterization. Removal of a catheter inadvertently placed in the subclavian artery can lead to substantial bleeding, as achieving hemostasis in this area through manual compression presents considerable difficulty. Additionally, surgical treatment might be unsuitable for high-risk patients due to comorbidities. Here, we report a case of an inadvertently-inserted 11.5-French hemodialysis catheter in the subclavian artery during internal jugular venous catheterization. We performed percutaneous closure of the subclavian artery using three 6-French Perclose Proglide® devices with a balloon tamponade in the proximal part of the subclavian artery. Closure was completed without embolic neurological complications.

Fatores de risco para complicações relacionadas ao acesso vascular em pacientes submetidos à estratégia invasiva precoce / Risk factors for vascular access-related complications in patients undergoing early invasive strategy

Introdução: O conhecimento dos fatores de risco relacionados às complicações do acesso vascular em pacientes submetidos à estratégia invasiva precoce permite adotar estratégias capazes de minimizá-las. Métodos: Realizamos subanálise do estudo ARISE, com o objetivo de identificar preditores de complicações vasculares em pacientes randomizados para as técnicas radial ou femoral com emprego de dispositivo de oclusão vascular (DOV). Resultados: Foram incluídos 240 pacientes, com média de idade de 63,0 ± 10,7 anos, sendo 30,8% diabéticos e, exceto pela maior prevalência de mulheres no grupo radial, não foram observadas diferenças clínicas entre os grupos. Intervenção coronária percutânea foi realizada em 86,7% dos casos. A taxa de complicações vasculares aos 30 dias foi de 13,3% no grupo radial, à custa de hematomas > 5 cm (6,7%) e oclusão arterial assintomática (5,8%), e de 12,5% no grupo femoral, à custa de hematomas > 5 cm, sem diferença significativa. Foram identificados como fatores de risco para complicações do acesso vascular o índice de massa corporal (IMC), o acidente vascular encefálico prévio, a maior duração do procedimento e o insucesso do DOV. Pela análise estratificada, o sexo feminino e o escore CRUSADE de alto ou muito alto risco foram variáveis preditoras de complicações apenas para o grupo femoral. No modelo multivariado, os fatores que permaneceram significantes foram o IMC e o insucesso do DOV. Conclusões: As técnicas radial e femoral, com o emprego de DOV, compartilharam variáveis preditoras de complicações. Fatores de risco, como sexo feminino e escore CRUSADE de alto risco, foram atenuados pela utilização da técnica radial

Background: The knowledge of risk factors related to vascular access complications in patients undergoing early invasive strategy allows the adoption of methods to minimize them. Methods: We performed a subanalysis of the ARISE study, aiming to identify predictors of vascular complications in patients randomized to the radial or femoral techniques with the use of vascular closure device (VCD). Results: A total of 240 patients with a mean age of 63.0 ± 10.7 years were included, with 30.8% of diabetics. Except for a higher prevalence of women in the radial group, there were no clinical differences between the groups. Percutaneous coronary intervention was performed in 86.7% of the cases. The rate of vascular complications after 30 days was 13.3% in the radial group, due to hematoma > 5 cm (6.7%) and asymptomatic artery occlusion (5.8%), and 12.5% in femoral group, due to hematoma > 5 cm, without significant difference. The following were identified as risk factors for vascular access complications: body mass index (BMI), previous stroke, longer duration of the procedure, and VCD failure. At the stratified analysis, female gender and high or very high-risk CRUSADE score were predictors of complications only for the femoral group. In the multivariate model, the factors that remained significant were BMI and VCD failure. Conclusions: The radial and femoral techniques, with the use of VCD, shared variables that were predictors of complications. Risk factors, such as female gender and high-risk CRUSADE score, were attenuated by the use of the radial technique

Devices used for percutaneous occlusion of left atrial appendage：recent progress in research / 介入放射学杂志

Clinically, atrial fibrillation (AF) is one of the most common cardiac arrhythmia, and patients with arterial fibrillation carry high risk of stroke. Oral administration of anticoagulation such as warfarin for the prevention of stroke has some risks to induce bleeding; moreover, some patients are not able to tolerate the medication. Percutaneous occlusion of the left atrial appendage is safe and effective for the prevention of stroke in patients with atrial fibrillation, although at present it is only used for the patients who have contraindications to anticoagulation medication. This paper aims to review a variety of left atrial appendage occlusion devices and to analyze the relationship between the different shape design of occluder and the left atrial appendage morphology.

Brief introduction of vascular closure device / 介入放射学杂志

A vascular closure device (VCD) is a medical apparatus which is used for stopping bleeding at the puncture point after percutaneous vascular puncturing management. According to its principles , these devices can be categorized into active closure device, compression-assisted device and local hemostatic plaster. The use of these devices can shorten the time of hemostasis, the time of limb immobilization, and the time of hospitalization; it can also reduce the damage to the patient, improve patient’s comfort, and reduce the work load of the medical staff as well. But each VCD has its own applicable scope and learning curve , thus it might cause serious complications when it is improperly used. Therefore , in using VCD the interventional physicians should be familiar with the characteristics of each special VCD and have enough knowledge concerning the treatment of the common complications. This paper aims to make a comprehensive review of the closure device manufacturer data and the relevant literatures recently published so as to make a brief introduction of the principle, characteristics, scope of application and practical tips of several common vascular closure devices.

Meta-analysis of per close vascular closure device hemostasis by femoral artery intervention application / 中国实用护理杂志

Objective To evaluate the effect of Angio-Seal vascular closure device by the femoral artery hemostasis.Methods Relative literature was searched by computer,according to the inclusion and the exclusion criteria,which were analyzed by RevMan5.2 software.Results A total of four studies of randomized controlled trial were brought into this research,the total sample size was involved in 3 191 cases,the sample size of the intervention group and the control group respectively was 1 583 and 1 608.The analysis results showed,Angio-seal vascular closure device can significantly shorten the time of hemostasis after femoral artery interventional therapy in patients and the limb braking time.The sensitive analysis results showed that the results stability were high and the conclusions were reliable.Conclusions Application of Angio-seal vascular closure device can significantly shorten the interventional therapy in patients with bleeding time and braking time.

Coronary Artery Fistula Draining into Lung Parenchyma Causing Localized Pulmonary Edema: Transcatheter Closure with an Amplatzer Vascular Plug 4

Coronary artery fistula draining into lung parenchymal vasculature has not been reported. Herein, we describe a case of an 81-year-old woman who presented with a localized pulmonary edema on right upper lobe associated with coronary fistula emptied into vasculature in right upper lobe. She underwent transcatheter closure of the fistula with an Amplatzer Vascular Plug 4, which resulted in complete occlusion and improved localized pulmonary edema.

Delayed Vascular Claudication Following Diagnostic Cerebral Angiography: A Rare Complication of the AngioSeal Arteriotomy Closure Device

With rapidly increasing numbers of neuroendovascular procedures performed annually in recent years, use of arterial closure devices after femoral artery access has been exceedingly common secondary to reduced time to hemostasis, decreased patient discomfort, earlier mobilization, and shortened hospital stay. Although uncommon, use of these devices can lead to a different spectrum of complications, as compared to manual compression. Ischemic symptoms following the use of these devices can have unexpected clinical sequelae and can occur in a delayed fashion. Awareness and recognition of such complications is important with the dramatically increased use of these devices in recent years. We report on a case of delayed vascular complication manifesting as vascular claudication following use of the AngioSeal closure device.

Per-left auricle suture of mitral valve using modified vascular closure device: An in vitro experiment / 第二军医大学学报

Objective To investigate the feasibility of per-left auricle suture of mitral valve using modified vascular closure device via in vitro experiment, so as to search for new technique for treatment of mitral regurgitation. Methods The market vascular closure devicewas modified by cutting the tip of extension tube, while reserving the marking hole for passing the puncture wire and broadening the needle pitch. Twenty goat hearts were obtained and the pericardium was opened to expose the left auricle. After puncture of the left auricle with the Cordis needle, a "J" type guide wire was inserted through the needle sheath. It was confirmed that the "J" type guide wire must be in the left ventricle through cutting the left ventricle along the interventricular groove. Then the modified vascular closure device was introduced into the left ventricle along the "J" wire. The anterior leaflet and posterior leaflet of mitral valve were sutured together by the vascular closure device in ventricular side of the mitral valve. Results Ourmodified vascular closure device could successfully suture the anterior leaflet and posterior leaflet of mitral valve, without damaging the valve structure. Conclusion The modified vascular closure device is well designed and can be used for suturing anterior leaflet and posterior leaflet of mitral valve.

Primary Limited Lumbar Discectomy with an Annulus Closure Device: One-Year Clinical and Radiographic Results from a Prospective, Multi-Center Study

OBJECTIVE: Discectomy as a treatment for herniated lumbar discs results in outcomes after surgery that are not uniformly positive. Surgeons face the dilemma between limited nucleus removal which is associated with a higher risk of recurrence, or more aggressive nucleus removal which may lead to disc height loss and persistent back-pain. annulus closure devices may allow for the benefits of limited nucleus removal without the increased risk of recurrence. This is an interim report of an ongoing 24-month post-marketing study of the Barricaid(R) annulus closure device, consisting of a flexible polymer mesh that blocks the defect, held in place by a titanium bone anchor. METHODS: We prospectively enrolled 45 patients at four hospitals, and implanted the Barricaid(R) after a limited discectomy. annulus defect size and volume of removed nucleus were recorded. Reherniations were reported, pain and function were monitored and imaging was performed at regular intervals during 24 months of follow-up. RESULTS: At 12 months postsurgery, pain and function were significantly improved, comparing favorably to reported results from limited discectomy. Disc height has been well maintained. One reherniation has occurred (2.4%), which was associated with a misplaced device. No device fracture, subsidence or migration has been observed. CONCLUSION: The use of an annulus closure device may provide a reduction in reherniation rate for lumbar discectomy patients with large annulus defects who are at the greatest risk of recurrence. Using such a device should provide the surgeon increa- sed confidence in minimizing nucleus removal, which, in turn, may preserve disc height and biomechanics, reducing dege- neration and associated poor clinical outcomes in the long-term. A randomized multicenter study evaluating limited discectomy with and without the Barricaid(R) is currently underway, and will provide a higher level of evidence.

Angio-Seal(TM) Evolution(TM) versus Manual Compression for Common Femoral Artery Puncture in Neurovascular Diagnostic Angiography : A Prospective, Non-Randomized Study

OBJECTIVE: This prospective, non-randomized study compared the safety and efficacy of the Angio-Seal(TM) Evolution(TM) to that of manual compression for common femoral artery punctures in neurovascular diagnostic angiography. METHODS: From June 2009 to September 2009, we performed 169 diagnostic trans-femoral cerebral angiographies, using either the Angio-Seal(TM) Evolution(TM) or manual compression to achieve hemostasis. We included 60 patients in this study, 30 in each group. We defined minor complications as those requiring no further treatment such as hematoma size less than 6 cm and bruise size less than 25 cm. Major complications were those requiring surgery of the femoral artery pseudoaneurysm and/or the second line increase of hospital stay even without further treatment. RESULTS: Mean time to hemostasis was 0.42+/-0.04 minutes for the angioseal and 15.83+/-1.63 minutes for manual compression (p<0.001). Overall complication rate did not differ between the 2 groups. After the patients were fully mobile, at 24 hours, the rate of onset of new complication differed significantly between the 2 groups (p=0.032). In the angioseal group, 5 (16.7%) of the 30 patients experienced the onset of a new complication after 24 hours, including 3 (60.0%) of the 5 who experienced major complications. CONCLUSION: The Angio-Seal(TM) Evolution(TM) is effective at decreasing mean time to hemostasis, like other closing devices. However, it may not be effective at producing early ambulation and discharge, compared to manual compression, because delayed complications may occur significantly after 24 hours.

Surgical Treatment of Acute Arterial Occlusion after Applying the Vascular Closure Device for Hemostasis of Femoral Arteriotomy in Vascular Intervention

Vascular intervention via the femoral artery can cause vascular access complications and complications from closure of the arteriotomic incision site such as bleeding, thrombotic complications and vascular trauma. These types of complications occur in about 2% to 10% of the cases. After removal of the catheter, hemostasis is traditionally achieved by manual compression as a standard method. Many vascular closure devices have been developed in an attempt to improve the patient's comfort and to decrease the time to ambulation. Yet the safety and effectiveness of these vascular closure devices as compared to that of manual compression remains unclear. Herein we report on a case of femoral arterial occlusion due to vascular closure devices and the operative management.

Influence of MRI examination on positive of closure devices for congenital heart diseases / 第二军医大学学报

Objective: To investigate the influence of MRI examination on the position of closure devices for congenital heart diseases and to assess the effect of these devices on the image quality of MRI. Methods: Two atrial septal defect closure devices, 2 ventricular septal defect closure devices and 1 patent ductus arteriosus closure device were placed into a transparent non-metal container filled with boiling agar, with the agar completely covering the devices. The agar changed into glue after cooling, then the devices were sequentially scanned by MRI in transverse and coronal planes. The changes of agar integrity, the position of devices and the image quality were observed after scanning. Results: The surface of the agar covering the devices was smooth and had no breakage after the scanning. There was no change in the shape and position of all types of devices. The coronary, transverse scanning (T1 WI, T2 WI) showed a few slight artifacts on the central layer, all within the contour of the device. The mesh of device near the edge was clearly showed. Conclusion: Under our experimental condition, MRI does not affect the position of closure devices for congenital heart diseases and the devices do not affect the MRI image quality.

Three Cases of Arterial Occlusion That Occurred After the Use of Angioseal(R)

Femoral arterial closure devices are now commonly used after both diagnostic and therapeutic coronary procedures. They have been shown to reduce the time to ambulation and to decrease the length of the hospital stay. Angioseal is a commercially available femoral artery closure device that has been approved by the Food and Drug Administration (FDA). The device sandwiches an intra-arterial absorbable anchor on the luminal side of the vessel and a thrombin plug on the surface of the vessel with using a self-cinching stitch. We report here on three patients who presented with acute and delayed arterial occlusive complications that were found to be due to an Angioseal anchor that was not appropriately reabsorbed.

The closure device for the puncture point of femoral artery:an experiment in vitro / 介入放射学杂志

Objective To assess the blocking effects of a new-type closure device for the puncture point of femoral artery in vitro.Methods An embolic colloidal substance with stable swelling value was embedded in an extracorporeal model which was used as an imitator of femoral artery blood flow velocity.Results The embolization colloid was not displaced by the imitated blood flow lash,the embolic colloid was firmly attached to the puncture point and no fluid extravasation occurred.Conclusion This new-type closure device for the puncture point of femoral artery is simple in structure and easy to manipulate with satisfactory blocking results.