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Pulmonary vein stent

Jose F Condado, Vasilis Babaliaros, Travis S Henry, Brian Kaebnick, Dennis Kim, Gerald W Staton
BACKGROUND: The best treatment of patients with external pulmonary vascular compression due to advanced sarcoidosis is unknown. OBJECTIVES: To report a single-center experience of percutaneous treatment for pulmonary vascular stenosis caused by external compression due to advanced sarcoidosis. METHODS: We report a case series of 5 patients with biopsy confirmed advanced sarcoidosis, seen at our academic institution with worsening dyspnea despite increase of immunosuppressive therapy...
October 7, 2016: Sarcoidosis, Vasculitis, and Diffuse Lung Diseases: Official Journal of WASOG
K Ye, X Lu, W Li, M Yin, X Liu, J Qin, G Liu, M Jiang
OBJECTIVE: To evaluate the technical aspects and short-term clinical results of stent placement for chronic occlusion of a filter-bearing inferior vena cava (IVC) in patients with severe post-thrombotic syndrome (PTS). METHODS: A retrospective analysis of 24 patients with severe PTS associated with occlusion of a filter-bearing IVC treated by stent placement was conducted at a single institution from January 2010 to December 2014. Patient-reported quality of life and limb Villalta scores were evaluated before and after treatment by questionnaire and clinical examination, respectively...
October 14, 2016: European Journal of Vascular and Endovascular Surgery
Sitaram M Emani, Breanna L Piekarski, David Zurakowski, Christopher A Baird, Audrey C Marshall, James E Lock, Pedro J Del Nido
BACKGROUND: Options for cardiac valve replacement in children are limited to fixed-diameter prostheses that do not accommodate for somatic growth. An externally stented bovine jugular vein graft has been modified for surgical valve replacement in pediatric patients, with the intention of subsequent valve expansion in the catheterization laboratory as the child grows. METHODS: Pediatric patients at a single institution who underwent surgical implantation of an expandable bovine jugular vein valve between 2010 and 2014 were reviewed retrospectively...
August 31, 2016: Journal of Thoracic and Cardiovascular Surgery
A V Pokrovskiĭ, I M Ignat'ev, M Iu Volodiukhin, E G Gradusov
The present study was aimed at assessing initial results of hybrid operations in obstructive lesions of the iliac-femoral veins in patients with post-thrombotic disease (PTD). Hybrid operations [open endovenectomy from the common femoral vein (CFV) with creation of an arteriovenous fistula + stenting of iliac veins] were performed carried out in a total of eleven patients with PTD. Of these, there were 7 men and 4 women aged from 34 to 52 years (mean age - 42.8±7 years). All patients had severe-degree chronic venous insufficiency (CVI)...
2016: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
Davood Arab, Arash Ardestani Zadeh, Rahimeh Eskandarian, Mehrshad Asaadi, Kamran Ghods
Double-J (DJ) stents are the main tools used in urological practice for prevention and treatment of obstruction. Stenting is also mandatory after complicated ureteroscopy or TUL (Transureteral Lithotripsy). Known complications are upper migration of DJ stents into the kidney and lower migration to the bladder. In a man with an impacted right lower ureteral stone, a DJ stent was placed because the ureteroscope was not passed from an intramural ureter. We reported a very rare complication of DJ ureteral stent placement with intravascular migration to the pulmonary arteries, which was removed percutaneously through the right femoral vein under fluoroscopic guidance...
May 2016: Nephro-urology Monthly
Hawa Edriss, Tatiana Denega, Victor Test, Kenneth Nugent
Radiofrequency catheter ablation has become a widely used intervention in the treatment of atrial fibrillation. Pulmonary vein stenosis (PVS) is one of the most serious complications associated with this procedure; the degree of stenosis ranges from mild (<50%) to complete venous occlusion. The natural history of PVS and the risk of progression of existing PVS are uncertain. Symptomatic and/or severe PVS is a serious medical problem and can be easily misdiagnosed since it is an uncommon and relatively new medical problem, often has low clinical suspicion among clinicians, and has a non-specific presentation that mimics other more common respiratory or cardiac diseases...
August 2016: Respiratory Medicine
Lin Deng, Angela C Bradshaw, Andrew H Baker
PURPOSE OF REVIEW: Noncoding RNAs (ncRNAs), such as microRNAs (miRNAs) and long noncoding RNAs (lncRNAs) are becoming fundamentally important in the pathophysiology relating to injury-induced vascular remodelling. We highlight recent studies that demonstrate the involvement of ncRNAs in vein graft disease, in in-stent restenosis and in pulmonary arterial hypertension, with a particular focus on endothelial cell and vascular smooth muscle cell function. We also briefly discuss the emerging role of exosomal-derived ncRNAs and how this mechanism impacts on vascular function...
October 2016: Current Opinion in Lipidology
James T McPhee, Arin Madenci, Joseph Raffetto, Michelle Martin, Naren Gupta
OBJECTIVE: Multiple vascular inflow reconstruction options exist for claudication, including aortofemoral bypass (AFB) and alternative inflow procedures (AIPs) such as femoral reconstruction with iliac stents, and femoral-femoral, iliofemoral, and axillofemoral bypass. Contemporary multi-institution comparison of these techniques is lacking. METHODS: The Veterans Affairs Surgical Quality Improvement Project (VASQIP) national database (2005-2013) was used to compare AFB vs AIP in a propensity-matched analysis...
July 22, 2016: Journal of Vascular Surgery
Gustavo Jiménez-Brítez, Xavier Freixa, Eduardo Flores, Diego Penela, Marco Hernandez-Enríquez, Rodolfo San Antonio, Gala Caixal, John Garcia, Mercé Roqué, Victoria Martín, Salvatore Brugaletta, Mónica Masotti, Manel Sabaté
BACKGROUND: Mild therapeutic hypothermia (MTH) is associated with an increased risk of both thrombotic and bleeding events. Although little is known about the use of Glycoprotein IIb-IIIa inhibitors (GPi) in this setting, the early action and the intravenous administration of these agents in patients who cannot swallow might potentially translate into clinical benefits in patients with acute coronary syndromes (ACS). AIMS: To assess the incidence of bleeding/thrombotic events in patients with ACS under MTH after an Out-of-hospital cardiac arrest (OHCA) who received GPi or not...
September 2016: Resuscitation
Silanath Terpenning, Loren H Ketai, Shawn D Teague, Stacy M Rissing
BACKGROUND: Atrial fibrillation (AF) may be the cause or sequela of left atrial abnormalities and variants. PURPOSE: To determine the prevalence of left atrial (LA) abnormalities in AF patients compared to normal sinus rhythm (NSR) patients. MATERIAL AND METHODS: We retrospectively reviewed 281 cardiac CT examinations from 2010 to 2012, excluding patients with prior pulmonary vein ablation, known coronary artery disease, prior coronary stent placement, or coronary artery bypass grafts...
June 2016: Acta Radiologica Open
Zakaria Jalal, Louise Galmiche, Christophe Beloin, Younes Boudjemline
BACKGROUND: Percutaneous pulmonary valve implantation (PPVI) using the bovine jugular vein Melody(®) valve (Medtronic Inc., Minneapolis, MN, USA) is safe and effective. However, post-procedural complications have been reported, the reasons for which are unclear. OBJECTIVE: To assess the impact of PPVI procedural steps on valvular histology and leaflet mechanical behaviour. METHODS: Three different valved stents (the Melody(®) valve and two homemade stents with bovine and porcine pericardium) were tested in vitro under four conditions: (1) control group; (2) crimping; (3) crimping plus inflation of low-pressure balloon; (4) condition III plus post-dilatation (high-pressure balloon)...
August 2016: Archives of Cardiovascular Diseases
W K Lim, M C Leong, H Samion
A 1.7 kg infant with obstructed supracardiac total anomalous pulmonary venous drainage (TAPVD) presented with severe pulmonary hypertension secondary to vertical vein obstruction. The child, in addition, had a large omphalocele that was being managed conservatively. The combination of low weight, unoperated omphalocele, and severe pulmonary hypertension made corrective cardiac surgery very high-risk. Therefore, transcatheter stenting of the stenotic vertical vein, as a bridge to corrective surgery was carried out...
May 2016: Annals of Pediatric Cardiology
Shyam K Sathanandam, T K Susheel Kumar, Deepthi Hoskoppal, Lauren M Haddad, Saradha Subramanian, Ryan D Sullivan, David Zurakowski, Christopher Knott-Craig, B Rush Waller
OBJECTIVES: This study sought to determine the feasibility and safety of unzipping small-diameter stents (SDS) in a growing animal model. BACKGROUND: SDS implanted to relieve stenosis of blood vessels in infants may result in refractory stenosis as the child grows. If stents can be longitudinally fractured-unzipped-then the target vessel can potentially be redilated to the eventual adult vessel diameter. METHODS: Fifty stents (diameter 4 to 7 mm) were implanted in 5 neonatal piglets (mean age and weight = 1...
June 13, 2016: JACC. Cardiovascular Interventions
Chih-Hsien Lee
An arteriovenous fistula (AVF) is an abnormal connection between an artery and a vein. Double-lumen catheters are widely used for gaining temporary access in patients requiring acute hemodialysis (HD). Several complications are associated with the insertion of these catheters, including bleeding, infection, arterial injuries, and deep venous thrombosis. An iatrogenic AVF is a rare and severe complication following catheterization for temporary HD. Here, we report the case of a patient who developed an iatrogenic AVF following catheterization for acute HD resulting in acute bleeding...
May 5, 2016: Hemodialysis International
Jonathan Rosenberg, Westby G Fisher, Mayra Guerrero, Steve Smart, Justin Levisay, Ted Feldman, Michael Salinger
Pulmonary vein stenosis (PVS) is an uncommon but serious complication following radiofrequency ablation for atrial fibrillation. Occurrence of this complication has risen with increased rates of ablation procedures, with >50,000 AF ablation procedures performed per year, and can occur within weeks to months post procedure. Currently, the main therapies for PVS include percutaneous interventions with balloon angioplasty and stenting, but these treatments are complicated by a high rate of restenosis. The optimal treatment for recurrent pulmonary vein in-stent restenosis has not been determined...
May 2016: Journal of Invasive Cardiology
Mohamed Khalifa, Neeral Patel, Steven Moser
Superior vena cava obstruction (SVCO) and associated thrombus formation can occur in patients with upper mediastinal or right apical masses. While stenting is useful in relieving obstruction, it can facilitate the passage of upper extremity deep vein thrombus to the pulmonary arterial tree, resulting in a potentially fatal pulmonary embolism (PE). We present a case that illustrates a novel technique, which protects the patient from PE while also relieving the SVCO. This involves placing an inferior vena cava filter in an inverted position within a superior vena cava (SVC) stent to capture emboli...
April 2016: Vascular and Endovascular Surgery
Gur Mainzer, Eric Rosenthal, Conal Austin, Gareth Morgan
A 5-year-old child with a Fontan circulation presented with acquired left pulmonary vein occlusion related to a previous surgical repair. We managed this lesion using a hybrid technique to perforate, dilate and stent the obstructed vessel. This approach should be considered when percutaneous access to the pulmonary veins is challenging (such as in a Fontan circulation). It also avoids the need for a high-risk redo sternotomy and cardiopulmonary bypass procedure.
June 2016: Pediatric Cardiology
Shiva P Ponamgi, Christopher V DeSimone, Charles J Lenz, Megan Coylewright, Samuel J Asirvatham, David R Holmes, Douglas L Packer
INTRODUCTION: Fibrosing mediastinitis (FM) is a rare but fatal disease characterized by an excessive fibrotic reaction in the mediastinum, which can lead to life-threatening stenosis of the pulmonary veins (PV). Catheter-based intervention is currently the only viable option for therapy. However, the current literature on how best to manage these difficult cases, especially in regards to sequential interventions and their potential complications is very limited. METHODS: We searched through a database of all patients who have undergone PV interventions at the Earl H...
September 1, 2015: IJC Heart & Vasculature
Shubhabrata Banerjee, Hiten M Patel, Virender K Sheorain, Tarun Grover, Rajiv Parakh
We report a case of endovascular recanalization of complete thrombotic occlusion of the inferior vena cava (IVC) and bilateral iliac veins using the architectural knowledge of the in situ permanent IVC filter in a 23-year-old male. The infrarenal permanent IVC filter was TRAPEASE permanent vena cava filter (Cordis) placed at an outstation hospital for pulmonary embolism. Being permanent variant of filter, percutaneous removal was not possible. The patient had severe venous claudication and an attempt to recanalize the blocked filter was considered, in view of the age no justifiable indication for a long-term filter...
May 2016: Annals of Vascular Surgery
Seul-Hee Lee, Hyun-Kyu Kim, Jeung-Kee Hwang, Sang-Dong Kim, Sun Cheol Park, Ji-Il Kim, Yong-Sung Won, Sang-Seob Youn, In-Sung Moon
BACKGROUND: Inferior vena cava (IVC) filter placement is not indicated for thrombolytic interventional treatment for deep vein thrombosis (DVT). We analyzed the efficacy and feasibility of retrievable IVC filter placement for the preventive management of embolic shedding during catheter-directed thrombectomy (CDT) for DVT of lower extremity. METHODS: Seventy patients (35 males and 35 females) who underwent retrievable IVC filter placement to prevent thrombus dislodgement during CDT in all symptomatic DVT with thrombus age suspected within 4 weeks of the lower extremity between March 2008 and January 2014 were included in this study...
May 2016: Annals of Vascular Surgery
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