115,498 results match your criteria stent


Predictors of 10-Year Stent-Related Adverse Outcomes after Coronary Drug-Eluting Stent Implantation: The Importance of Stent Size.

Cardiology 2021 Aug 3:1-8. Epub 2021 Aug 3.

Department of Cardiology, Zealand University Hospital, Roskilde, Denmark.

Introduction: The predictors of stent treatment failure and their importance 10 years after treatment with drug-eluting stents (DESs) have not been reported in detail.

Methods: Data were retrieved from the SORT-OUT II database encompassing 2,849 non-left main coronary lesions in 2,073 unselected all-comer patients treated with first-generation DES and followed clinically for 10 years. Stent treatment failure (STF) was defined as definite or probable stent thrombosis, target lesion revascularization (TLR), or >70% restenosis left untreated. Read More

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Comparison of Drug-Coated Balloons to Bare Metal Stents in the Treatment of Symptomatic Vertebral Artery-Origin Stenosis: A Prospective Randomized Trial.

World Neurosurg 2021 Jul 31. Epub 2021 Jul 31.

The affiliated Tumour Hospital of Harbin Medical University No.150 Haping Road, Harbin, China. Electronic address:

Objective: To compare the angiographic and clinical outcomes of drug-coated balloon (DCB) with distal embolic protection devices (EPD) vs bare metal stent (BMS) without EPD in the treatment of symptomatic vertebral artery origin stenosis (VAOS).

Methods: Between January 2017 and December 2018, a prospective randomized trial was conducted involving 95 patients with symptomatic VAOS randomly assigned to treatment with DCB + EPD (n=49) or BMS without EPD (n=46). Target vessel restenosis (RS) >50% detected by computed tomography angiography (CTA) was the primary endpoint. Read More

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Stenting as a treatment for cranio-cervical artery dissection: Improved major adverse cardiovascular event-free survival.

Catheter Cardiovasc Interv 2021 Aug 3. Epub 2021 Aug 3.

Department of Neurology, Radiology and Neurosurgery, Prisma Health Richland, University of South Carolina School of Medicine, Columbia, South Carolina, USA.

Introduction: Cranio-cervical artery dissection (CeAD) is a common cause of cerebrovascular events in young subjects with no clear treatment strategy established. We evaluated the incidence of major adverse cardiovascular events (MACE) in CeAD patients treated with and without stent placement.

Methods: COMParative effectiveness of treatment options in cervical Artery diSSection (COMPASS) is a single high-volume center observational, retrospective longitudinal registry that enrolled consecutive CeAD patients over a 2-year period. Read More

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Practical use and underlying physics of the BENCHMARK™ BMX™ 96 for large-bore aspiration thrombectomy: Case report of initial institutional experience.

Neuroradiol J 2021 Aug 3:19714009211036691. Epub 2021 Aug 3.

Division of Neuroradiology, Department of Diagnostic Radiology, 3688Dalhousie University, Dalhousie University, Canada.

Endovascular thrombectomy (EVT) is part of first-line intervention for acute ischemic stroke management. Recent technological advances have demonstrated that large-bore catheters are an attractive approach for EVT. A multitude of approaches such as A Direct Aspiration first Pass Technique (ADAPT) or in conjunction with stent retrieval (Solumbra technique) have been developed with increasingly large-bore catheters, demonstrating safety and efficacy. Read More

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Complications Associated with PROPEL Mometasone Furoate Bioabsorbable Drug-eluting Sinus Stents From 2012 to 2020.

Am J Rhinol Allergy 2021 Aug 3:19458924211035641. Epub 2021 Aug 3.

12235University of Miami Miller School of Medicine, Miami, Florida.

Background: Till date, there have been no studies that have analyzed a database to examine postmarket adverse events associated with PROPEL mometasone furoate bioabsorbable drug-eluting sinus stents.

Objective: To determine the postmarket complications associated with PROPEL mometasone furoate bioabsorbable drug-eluting sinus stents.

Methods: The US Food and Drug Administration's Manufacturer and User Facility Device Experience database was searched for adverse events associated with PROPEL bioabsorbable drug-eluting sinus stents between January 1, 2012 and December 31, 2020. Read More

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Quantitative analysis of renal blood flow during thoracic endovascular aortic repair in type B aortic dissection using iFlow.

Quant Imaging Med Surg 2021 Aug;11(8):3726-3734

State Key Laboratory of Cardiovascular Disease, Center of Vascular Surgery, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

Background: Currently, the thoracic endovascular aortic repair is the recommended clinical treatment for type B aortic dissections. Unfortunately, malperfusion or ischemia of the kidneys is a major complication of type B aortic dissections. Despite this, few studies have focused on the effects of thoracic endovascular aortic repair on blood flow in renal arteries and parenchyma. Read More

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Failure of XEN Gel Stent Implantation as a Stand-Alone Procedure in Congenital Glaucoma: Case Report of Secondary Congenital Glaucoma in Neurofibromatosis Type 1.

Case Rep Ophthalmol Med 2021 23;2021:9947167. Epub 2021 Jul 23.

Department of Ophthalmology, Universitätsklinikum Aachen, Pauwelsstr. 30, 52057 Aachen, Germany.

A XEN gel stent implant procedure was performed in a one-year-old child with severe unilateral congenital glaucoma. At the age of 6 weeks, an uncomplicated 360° trabeculotomy had been performed, which resulted in intraocular pressure (IOP) control for only 4 months. The gel stent implantation was performed ab interno without complications. Read More

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Keratinocyte-Like Cells Trans-Differentiated from Human Adipose-Derived Stem Cells, Facilitate Skin Wound Healing in Mice.

Ann Dermatol 2021 Aug 1;33(4):324-332. Epub 2021 Jul 1.

Department of Dermatology and Allergology, Juntendo University Graduate School of Medicine, Tokyo, Japan.

Background: Mesenchymal stem cells (MSCs) have been reported to promote wound healing in both animal models and human studies. Among MSCs, adipose-derived stem cells (ADSCs) can be easily harvested in large quantities.

Objective: We investigated whether skin wound healing in mice can be facilitated by keratinocyte-like cells differentiated from ADSCs (KC-ADSCs). Read More

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Blood biomarkers of progressive atherosclerosis and restenosis after stenting of symptomatic intracranial artery stenosis.

Sci Rep 2021 Aug 2;11(1):15599. Epub 2021 Aug 2.

Department of Neurology, Medical University of Graz, Auenbruggerplatz 22, 8036, Graz, Austria.

In-stent restenosis (ISR) represents a major complication after stenting of intracranial artery stenosis (ICAS). Biomarkers derived from routine blood sampling including C-reactive protein (CRP), neutrophil-to-lymphocyte ratio (NLR), platelet-to-lymphocyte ratio (PLR) and mean platelet volume (MPV) have been associated with progressive atherosclerosis. We investigated the role of CRP, NLR, PLR and MPV on the development of intracranial ISR and recurrent stroke risk. Read More

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Long-term outcomes of fully covered self-expandable metal stents versus plastic stents in chronic pancreatitis.

Sci Rep 2021 Aug 2;11(1):15637. Epub 2021 Aug 2.

Department of Internal Medicine, Severance Hospital, Yonsei University College of Medicine, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03772, Republic of Korea.

Chronic pancreatitis (CP) related main pancreatic duct (MPD) stricture has been a challenge for endoscopists. Fully covered self-expandable metal stents (FC-SEMS) has been tried in CP patients, but the efficacy and safety are still controversial. Thus, we aim to compare the long-term clinical efficacy of FC-SEMS vs. Read More

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Duration of dual antiplatelet therapy and stability of coronary heart disease: a 60 000-patient meta-analysis of randomised controlled trials.

Open Heart 2021 Jul;8(2)

BHF Centre for Cardiovascular Science, University of Edinburgh Division of Clinical and Surgical Sciences, Edinburgh, UK.

Background: Dual antiplatelet therapy (DAPT) has important implications for clinical outcomes in coronary disease. However, the optimal DAPT duration remains uncertain.

Methods And Results: We searched four major databases for randomised controlled trials comparing long-term (≥12 months) with short-term (≤6 months) or shorter (≤3 months) DAPT in patients with coronary syndromes. Read More

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Efficacy and safety of conversion of percutaneous cholecystostomy to endoscopic transpapillary gallbladder stenting in high-risk surgical patients.

Hepatobiliary Pancreat Dis Int 2021 Jul 24. Epub 2021 Jul 24.

Division of Biliopancreas, Department of Internal Medicine, Wonkwang University College of Medicine and Hospital, 895 MuwangRo, Iksan, South Korea; Institute of Wonkwang Medical Science, Wonkwang University College of Medicine and Hospital, Iksan, South Korea. Electronic address:

Background: Endoscopic transpapillary gallbladder stenting (ETGBS) has been used as an alternative to percutaneous cholecystostomy in patients with acute cholecystitis who are considered unfit for surgery. However, there are few data on the efficacy and safety of ETGBS replacement of percutaneous cholecystostomy in high-risk surgical patients. This study aimed to evaluate the feasibility, efficacy, and safety of ETGBS to replace percutaneous cholecystostomy in high-risk surgical patients. Read More

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Impact of intracoronary optical coherence tomography in routine clinical practice: A contemporary cohort study.

Cardiovasc Revasc Med 2021 Jul 27. Epub 2021 Jul 27.

Department of Cardiology, Bern University Hospital, University of Bern, Bern, Switzerland. Electronic address:

Background/purpose: Guidelines recommend intracoronary optical coherence tomography (OCT) to assess stent failure and guide percutaneous coronary intervention (PCI) but OCT may be useful for other indications in routine clinical practice.

Methods/materials: We conducted an international registry of OCT cases at two large tertiary care centers to assess clinical indications and the potential impact on decision making of OCT in clinical routine. Clinical indications, OCT findings, and their impact on interventional or medical treatment strategy were retrospectively assessed. Read More

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Safety and efficacy of a novel electrocautery-enhanced lumen-apposing metal stent in interventional EUS procedures (with video).

Gastrointest Endosc 2021 Jul 30. Epub 2021 Jul 30.

Humanitas University, Department of Biomedical Sciences, Pieve Emanuele, Milan, Italy; Humanitas Clinical and Research Center - IRCCS, Rozzano (MI), Italy.

Background And Aims: Electrocautery-tip lumen-apposing metal stents (EC-LAMSs) have extended the indications of therapeutic EUS. We aimed to retrospectively evaluate safety, technical and clinical success of a newly developed EC-LAMS for various EUS-guided procedures.

Methods: We included and retrospectively analyzed consecutive patients at 8 tertiary care referral centers who had undergone EUS interventional procedures using the Hot-Spaxus (Taewoong Medical Co, Gimpo, Korea) between October 2018 and February 2021. Read More

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Robot-assisted Kidney Transplantation.

J Vis Exp 2021 Jul 19(173). Epub 2021 Jul 19.

Division of Kidney and Pancreas Transplantation, Department of Surgery, Asan Medical Center, University of Ulsan College of Medicine;

This paper describes robot-assisted kidney transplantation (RAKT) from a living donor. The robot is docked between the parted legs of the patient, placed in the supine Trendelenburg position. Kidney allografts are provided by a living donor. Read More

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Intracoronary Imaging of a Synergy Megatron Stent Fracture in Ostial Right Coronary Artery.

J Invasive Cardiol 2021 Aug;33(8):E674-E675

Cardiology Department, Hospital Clínico Universitario de Valencia, Valencia, Spain, Avda, Blasco Ibáñez 17, 46010 Valencia-Spain.

The Synergy Megatron stent confers enhanced axial and radial forces, which makes it an ideal choice for ostial and calcified lesions. However, in this case, the stent fractured. The mechanical stress due to severe calcification at the ostium, followed by a swinging segment, probably caused hinge effect and led to a stent fracture. Read More

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Longitudinal Stent Deformation: Insights Provided by Optical Coherence Tomography.

J Invasive Cardiol 2021 Aug;33(8):E672-E673

Vardhman Mahavir Medical College and Safdarjung Hospital, New Delhi-110029, India.

Longitudinal stent deformation is defined as shortening or elongation of the stent along its longitudinal axis after deployment. It is under-recognized on angiography, and imaging- based studies have reported an incidence of up to 1%. The etiology includes damage by the guiding catheter or secondary devices such as postdilation balloons, imaging catheters, additional stents, or wire entanglement. Read More

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Four-year outcomes of a single-center experience with coronary everolimus-eluting bioresorbable scaffolds.

Minerva Cardiol Angiol 2021 Aug 2. Epub 2021 Aug 2.

Division of Cardiology, Department of Medical Biotechnologies, University of Siena, Siena, Italy.

Background: Bioresorbable scaffolds (BRS) have been introduced to overcome the limitations of drug-eluting stents and the ABSORB (Everolimus-eluting BRS, Abbott Vascular, Santa Clara, CA) was the most extensively tested. Nevertheless, major RCTs reported higher rates of target lesion failures and BRS thrombosis at 3 years follow-up, bringing to the withdrawing of the device from the market. It has been suggested that a better lesions selection and an optimized implantation technique could mitigate the displayed adverse results. Read More

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Recurrent Pleural Effusions, Lymphedema, and Abnormal Nails in a 61 Year Old Man.

Arthritis Care Res (Hoboken) 2021 Aug 2. Epub 2021 Aug 2.

Emory University, Department of Rheumatology.

A 61 year old man with history of hypertension, coronary artery disease (CAD) with prior stent placement, and chronic obstructive pulmonary disease (COPD) presented with a four month history of recurrent pleural effusions and progressive diffuse edema. Four months prior to hospital presentation, the patient began to notice new onset dyspnea on exertion, fatigue, and chest pain. Initial evaluation with troponin and EKG were negative. Read More

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Slide Tracheoplasty for Repair of Complex Tracheoesophageal Fistulas.

Laryngoscope 2021 Aug 2. Epub 2021 Aug 2.

Division of Pediatric Otolaryngology-Head and Neck Surgery, Cincinnati Children's Hospital Medical Center, Cincinnati, Ohio, U.S.A.

Objectives/hypothesis: Repair of large, recurrent, and complex tracheoesophageal fistulas (TEFs) is challenging and numerous different surgical approaches exist. These various techniques each carry a set of risks and possible complications such as fistula recurrence, tracheal stenosis or pouches, esophageal stenosis, and recurrent laryngeal nerve injury. Slide tracheoplasty is a reconstructive technique successfully used in many different airway pathologies, including TEF repair. Read More

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Outcome analysis of the Gore Conformable Thoracic Stent Graft with active control system for the treatment of arch and descending thoracic aortic disease.

Eur J Cardiothorac Surg 2021 Jul 31. Epub 2021 Jul 31.

Department of Vascular and Endovascular Surgery, Heidelberg University Hospital, Heidelberg, Germany.

Objectives: The aim of this study was to evaluate technical/clinical outcomes of the Gore TAG Conformable Thoracic Stent Graft with Active Control System (CTAG with ACS) in thoracic aortic disease since its introduction in Europe in 2017.

Methods: Patients undergoing thoracic endovascular aortic repair (TEVAR) with the device between 2017 and 2020 were identified from a prospectively maintained single-centre database and retrospectively analysed. Predominant indications were aortic dissection (n = 46), thoracic/thoraco-abdominal aneurysm (n = 20/n = 7), penetrating ulcer (n = 14) and intramural haematoma (n = 12). Read More

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Pigtail Suture Stents Significantly Reduce Stent-related Symptoms Compared to Conventional Double J Stents: A Prospective Randomized Trial.

Eur Urol Open Sci 2021 Jul 10;29:1-9. Epub 2021 May 10.

Department of Urology, Città della Salute e della Scienza, Molinette University Hospital, Turin, Italy.

Background: Double J (DJ) ureteral stents are commonly inserted after ureteroscopy (URS) procedures for stone treatment. However, stent-related symptoms are still a major issue.

Objective: To determine whether a commercially available pigtail suture stent (PSS) can reduce stent-related symptoms compared to a conventional DJ stent after uncomplicated URS. Read More

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Performance Characteristics of a Lumen-Apposing Metal Stent for Pancreatic Fluid Collections: A Prospective Cohort Study.

J Can Assoc Gastroenterol 2021 Aug 28;4(4):158-164. Epub 2020 Jul 28.

Division of Gastroenterology, University of Alberta Hospital, Edmonton, Alberta, Canada.

Background: Endoscopic ultrasound-guided transmural drainage is the preferred management of pancreatic fluid collections (PFCs). Optimizing drainage is important and there remains debate as to the choice of stent. A recent trend towards the use of lumen-apposing metal stents (LAMS) has emerged. Read More

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Peri-procedural Trans-esophageal Echocardiographic Sizing of the Native Left Ventricular Outflow Tract During Edwards INTUITY Valve Implantation.

Front Cardiovasc Med 2021 15;8:690752. Epub 2021 Jul 15.

Division of Cardiothoracic Surgery, Prince of Wales Hospital, Shatin, Hong Kong.

The Edwards INTUITY rapid deployment valve was anchored on the left ventricular outflow tract (LVOT) by radial force akin to transcatheter balloon-expandable valves. This design feature facilitates minimally invasive and complex procedures but comes at the price of compressing the atrioventricular conduction bundle and potential requirement for pacemaker implantation. A retrospective observational study was conducted on 30 consecutive patients who received the INTUITY valve at our institution from August 2018 to January 2021. Read More

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Single-Center Experience in the Endovascular Management of the Combination of Isolated Common and Internal Iliac Artery Aneurysms.

Front Surg 2021 15;8:693233. Epub 2021 Jul 15.

Department of Vascular Surgery, State Key Laboratory of Complex Severe and Rare Disease, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.

The combination of isolated common and internal iliac artery aneurysms (CIIAA) are rare, life-threatening, abnormal conditions with relatively complex treatment. This study aimed to evaluate the clinical characteristics and treatment outcomes of CIIAA. We retrospectively reviewed 26 patients with CIIAA consecutively treated between January 2010 and August 2020 at Peking Union Medical College Hospital. Read More

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Case Report: Rare Iliac Vein Compression (May-Thurner) Syndrome in a Pediatric Patient.

Front Pediatr 2021 15;9:694782. Epub 2021 Jul 15.

Department of Cardiology, Children's Hospital of Nanjing Medical University, Nanjing, China.

Iliac vein compression syndrome (IVCS) or May-Thurner syndrome occurs predominantly in young to middle-aged women. Here we reported a case of IVCS in a 5-year-old boy. The child was admitted to our vasculocardiology department with left lower extremity that had been swollen for 1 month. Read More

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Coaxial Double-Pigtail Stent Placement: A Simple Solution to Decrease Bleeding Risk Associated With Lumen-Apposing Metal Stent?

Cureus 2021 Jun 28;13(6):e15981. Epub 2021 Jun 28.

Gastroenterology, Valleywise Health Medical Center, Phoenix, USA.

Endoscopic cystogastrostomy using lumen-apposing metal stent (LAMS) is considered the first-line therapy for symptomatic pancreatic fluid collections (PFCs). Routine coaxial placement of a double-pigtail stent (DPS) through LAMS is debated. We report the case of a patient with delayed massive gastrointestinal bleed eight weeks after LAMS placement due to splenic artery pseudoaneurysm leading to a complicated hospitalization. Read More

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Percutaneous Transhepatic Bowel Stent Deployment: An Alternative Approach for Malignant Afferent Loop Obstruction Following Whipple's Procedure.

Cureus 2021 Jun 27;13(6):e15964. Epub 2021 Jun 27.

Interventional Radiology, Shifa International Hospital, Islamabad, PAK.

Afferent loop syndrome is an uncommon postoperative complication. Currently, we lack a therapeutic option for treatment of malignant afferent loop obstruction following procedures like Whipple's. Here we present a case of afferent loop obstruction in a known case of pancreatic carcinoma, status after Whipple's procedure, in which we used a percutaneous transhepatic approach to relieve the afferent loop obstruction using a self-expanding bare metal stent. Read More

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Huotan Jiedu Tongluo Decoction Inhibits Balloon-Injury-Induced Carotid Artery Intimal Hyperplasia in the Rat through the PERK-eIF2-ATF4 Pathway and Autophagy Mediation.

Evid Based Complement Alternat Med 2021 20;2021:5536237. Epub 2021 Jul 20.

Hospital of Affiliated Changchun University of Chinese Medicine, Changchun 130021, Jilin, China.

In-stent restenosis (ISR) is the main factor affecting the outcome of percutaneous coronary intervention (PCI), and its main pathological feature is neointimal hyperplasia. Huotan Jiedu Tongluo decoction (HTJDTLD) is an effective traditional Chinese medicine (TCM) prescription for the treatment of vascular stenosis diseases. However, the precise anti-ISR mechanism of HTJDTLD remains unclear. Read More

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Endovascular Treatment of Posterior Circulation Saccular Aneurysms With the p64 Flow Modulation Device: Mid-and Long-Term Results in 54 Aneurysms From a Single Center.

Front Neurol 2021 16;12:711863. Epub 2021 Jul 16.

Neuroradiologische Klinik, Kopf- und Neurozentrum, Klinikum Stuttgart, Stuttgart, Germany.

Flow diverter (FD) stents have become one of the most common tools for treating intracranial aneurysms; however, their role in treating posterior circulation aneurysms is still discussed with controversy. In this study, we evaluated the safety and effectiveness of p64 FD for the treatment of saccular, unruptured aneurysms in the posterior circulation over a long-term follow-up period in a single center. From our prospectively maintained database, we retrospectively identified patients who underwent treatment of an intracranial saccular aneurysm arising from the posterior circulation with ≥1 p64 FD implanted or attempted between October 2012 and December 2019. Read More

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