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Pulmonary stent

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https://www.readbyqxmd.com/read/28549918/percutaneous-pulmonary-melody-%C3%A2-valve-implantation-in-small-conduits
#1
Myriam Bensemlali, Sophie Malekzadeh-Milani, Meriem Mostefa-Kara, Damien Bonnet, Younes Boudjemline
BACKGROUND: The Melody(®) pulmonary valve has received approval for the treatment of dysfunctional right ventricular (RV) outflow tract conduits ≥16mm. AIMS: To investigate technical and clinical outcomes in patients who underwent percutaneous pulmonary valve implantation (PPVI) in conduits ≤16mm. METHODS: Eleven patients were enrolled retrospectively between 2000 and 2015 in a cardiac referral centre. RESULTS: The PPVI indications were obstruction (n=5); regurgitation (n=1); and mixed lesions (n=5)...
May 23, 2017: Archives of Cardiovascular Diseases
https://www.readbyqxmd.com/read/28549723/tracheobronchomalacia
#2
Abhishek Biswas, Michael A Jantz, P S Sriram, Hiren J Mehta
The term tracheobronchomalacia refers to excessively compliant and collapsible central airways leading to symptoms. Although seen as a coexisting condition with various other pulmonary condition, it may cause symptoms by itself. The condition is often misdiagnosed as asthma, bronchitis or just chronic cough due to a lack of specific pathognomonic history and clinical findings. The investigation revolves around different modes of imaging, lung function testing and usually confirmed by flexible bronchoscopy. The treatment widely varies based on the cause, with most cases treated conservatively with non-invasive ventilation...
May 23, 2017: Disease-a-month: DM
https://www.readbyqxmd.com/read/28549630/-the-successful-saga-of-percutaneous-pulmonary-valvulation-in-congenital-heart-diseases
#3
Sophie Malekzadeh-Milani, Younes Boudjemline
With new surgical techniques, more and more complex congenital heart defects are treated requiring sometimes right ventricle to pulmonary artery conduit implantation. In order to extend RV to PA conduit lifespan, 15 years ago a valved stent was developed. The implantation technique was progressively standardized to decrease risks of procedural complications. Medium and long-term hemodynamic results of the stent were so good that indications were broadened to native or complex right ventricular outflow tracts...
May 23, 2017: La Presse Médicale
https://www.readbyqxmd.com/read/28538215/the-use-of-polyvinyl-alcohol-sponge-and-cyanoacrylate-glue-in-the-treatment-of-large-and-chronic-bronchopleural-fistulae-following-lung-cancer-resection
#4
Paolo Battistoni, Umberto Caterino, Sandro Batzella, Raffaele Dello Iacono, Gabriele Lucantoni, Giovanni Galluccio
BACKGROUND: Bronchopleural fistulae represent a relatively rare complication of pulmonary resection. For inoperable patients, several endoscopic procedures have been described. In the presence of large and chronic bronchopleural fistulae, persistent air leaks require a surgical therapy, while endoscopic airway stent represents a useful palliative treatment. OBJECTIVE: We describe the successful closure of large and chronic bronchopleural fistulae using an expandable polyvinyl alcohol (PVA) sponge and cyanoacrylate glue...
January 25, 2017: Respiration; International Review of Thoracic Diseases
https://www.readbyqxmd.com/read/28538086/sphingosine-1-phosphate-receptor-1-agonist-sew2871-causes-severe-cardiac-side-effects-and-does-not-improve-microvascular-barrier-breakdown-in-sepsis
#5
Sven Flemming, Natalie Burkard, Michael Meir, Martin Alexander Schick, Christoph-Thomas Germer, Nicolas Schlegel
BACKGROUND: Endothelial barrier dysfunction is a hallmark in the pathogenesis of sepsis. Sphingosine-1-phosphate (S1P) has been proposed to be critically involved in the maintenance of endothelial barrier function predominately by activating S1P receptor-1 (S1P1). Previous studies have shown that the specific S1P1 agonist SEW2871 improves endothelial barrier function under inflammatory conditions. However, the effectiveness of SEW2871 and potential side effects remained largely unexplored in a clinically relevant model of sepsis...
May 23, 2017: Shock
https://www.readbyqxmd.com/read/28532066/design-and-characterization-of-a-novel-nickel-free-cobalt-base-alloy-for-intravascular-stents
#6
Qiang Wang, Yibin Ren, M Babar Shahzad, Wei Zhang, Xumeng Pan, Song Zhang, Dan Zhang
Co-Cr-W-Ni alloy (L605) with high tensile strength is used in coronary stents. The thickness of individual strut of the stent is reduced which can decrease the stent restenosis rate. However, about 10% Ni element content in L605 is found to cause allergic reactions and pulmonary embolism, similar to the traditional 316L stainless steel. In this study, a novel nickel-free cobalt-base alloy Co-20Cr-12Fe-18Mn-2Mo-4W-N (wt%) was designed and fabricated in order to efficiently avoid the potential hazards of Ni element...
August 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28530488/the-effect-of-angiojet-rheolytic-thrombectomy-in-the-endovascular-treatment-of-lower-extremity-deep-venous-thrombosis
#7
Mert Dumantepe, Ibrahim Uyar
Objective To evaluate the clinical safety and effectiveness of percutaneous rheolytic thrombectomy in patients with acute lower extremity deep venous thrombosis. Method Sixty-eight consecutive patients with acute massive lower extremity deep venous thrombosis were included in this retrospective study. A percutaneous rheolytic thrombectomy device (Angiojet ® Rheolytic thrombectomy catheter, Boston Scientific, Marlborough, MA, USA) was used in all patients in an angiography suite through ipsilateral popliteal vein access...
January 1, 2017: Phlebology
https://www.readbyqxmd.com/read/28527920/emerging-bronchoscopic-treatments-for-chronic-obstructive-pulmonary-disease
#8
REVIEW
Wouter H van Geffen, Huib A M Kerstjens, Dirk-Jan Slebos
Chronic obstructive pulmonary disease (COPD) is a progressive lung disease characterized by pathophysiological factors including airflow limitation, hyperinflation and reduced gas exchange. Treatment consists of lifestyle changes, lung rehabilitation and pharmacological therapies such as long acting beta-2-agonists (LABA) and long acting muscarinic antagonists (LAMA). More recently bronchoscopic treatments are emerging for COPD. Among them endobronchial valves(EBV) and endobronchial coils (EBC), next to endobronchial stents, sclerosing agents, targeted lung denervation and liquid nitrogen metered cryospray...
May 17, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28520542/hybrid-palliation-for-interrupted-aortic-arch-with-small-aortic-valve
#9
Yoshimasa Uno, Ayumu Masuoka, Kentarou Hotoda, Toshiyuki Katogi, Takaaki Suzuki
OBJECTIVES: Open heart surgery for interrupted aortic arch in the neonatal period is still a high-risk procedure related in part to patient factors such as low birth weight, other morphologic anomalies, and, especially, small aortic valve size. Recently, we performed hybrid palliation with bilateral pulmonary artery banding and ductal stenting as the first-stage palliation for such cases. In this study, the outcomes of this procedure were examined. METHODS: Six cases of interrupted aortic arch with a small aortic valve underwent the hybrid procedure in the neonatal period in our institute from 2010 to 2015 (mean age: 6...
May 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28520537/anomalous-origin-of-right-coronary-artery-from-left-coronary-sinus-13-cases-treated-with-the-reimplantation-technique
#10
Alain Cubero, Alejandro Crespo, Gadah Hamzeh, Andrés Cortes, Daniel Rivas, José Ignacio Aramendi
OBJECTIVES: Anomalous aortic origin of a coronary artery is uncommon but potentially clinically significant. Manifestations vary from asymptomatic patients to those who present with angina pectoris, myocardial infarction, heart failure, syncope, arrhythmias, and sudden death. We describe our experience with surgical reimplantation and results at midterm follow-up. METHODS: Between February 2003 and July 2016, a total of 13 patients with anomalous origin of the right coronary artery (RCA) from the left sinus underwent surgical reimplantation...
May 2017: World Journal for Pediatric & Congenital Heart Surgery
https://www.readbyqxmd.com/read/28515755/common-origin-of-all-three-coronary-arteries-from-the-right-sinus-of-valsalva-first-case-study-accompanied-by-mitral-valve-prolapse-and-vein-anomaly-second-case-study-followed-by-successful-percutaneous-coronary-intervention-of-right-coronary-artery-stenosis
#11
Brygida Przywara-Chowaniec, Agata Puzio, Łukasz Czarnecki, Damian Kawecki, Jan Głowacki, Ewa Nowalany-Kozielska, Aleksandra Czarnecka
Congenital anomalies of the coronary arteries can be divided into two broad categories: those that alter myocardial perfusion and those that do not. In coronary anomalies not altering myocardial perfusion, the coronary arteries originate from the aorta, but their origins are in unusual positions. Although myocardial perfusion is normal, the angiographer may have trouble locating them. Patients with an anomalous left main coronary artery arising from the right sinus of Valsalva are presented. The diagnosis was made by coronary angiography, transesophageal echocardiography and multislice computed tomography (MSCT)...
March 2017: Kardiochirurgia i Torakochirurgia Polska, Polish Journal of Cardio-Thoracic Surgery
https://www.readbyqxmd.com/read/28501315/endovascular-stenting-for-end-stage-lung-cancer-patients-with-superior-vena-cava-syndrome-post-first-line-treatments-a-single-center-experience-and-literature-review
#12
Tzu-Ting Kuo, Po-Lin Chen, Chun-Che Shih, I-Ming Chen
BACKGROUND: Superior vena cava (SVC) syndrome is a major complication that occurs when a growing lung malignancy compresses the SVC extrinsically. Current treatment options include radiotherapy or chemotherapy to shrink the tumor or endovascular stenting of the SVC to restore flow. Herein, we report a case series treated in a single institution to demonstrate the safety, effectiveness, and outcomes of salvage and primary stenting for malignant SVC obstruction. METHODS: A total of 12 male patients with malignant superior vena cava obstruction caused by lung cancer underwent SVC stenting from October 2009 to May 2015...
May 10, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/28500137/outcomes-after-decompression-of-the-right-ventricle-in-infants-with-pulmonary-atresia-with-intact-ventricular-septum-are-associated-with-degree-of-tricuspid-regurgitation-results-from-the-congenital-catheterization-research-collaborative
#13
Christopher J Petit, Andrew C Glatz, Athar M Qureshi, Ritu Sachdeva, Shiraz A Maskatia, Henri Justino, David J Goldberg, Namrita Mozumdar, Wendy Whiteside, Lindsay S Rogers, George T Nicholson, Courtney McCracken, Mike Kelleman, Bryan H Goldstein
BACKGROUND: Outcomes after right ventricle (RV) decompression in infants with pulmonary atresia with intact ventricular septum vary widely. Descriptions of outcomes are limited to small single-center studies. METHODS AND RESULTS: Neonates undergoing RV decompression for pulmonary atresia with intact ventricular septum were included from 4 pediatric centers. Primary end point was reintervention post-RV decompression; secondary end points included circulation type at latest follow-up...
May 2017: Circulation. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28498107/ultrasound-assisted-thrombolysis-of-an-occluded-transjugular-portosystemic-shunt
#14
Nicholas Hilliard, Teik Choon See, Nadeem Shaida
Transjugular intrahepatic portosystemic shunt (TIPS) insertion is commonly performed for refractory ascites or variceal bleeding. However, TIPS dysfunction can be seen in both early and late settings, with shunt thrombosis a particular problem. Treatment of shunt dysfunction commonly involves angioplasty and re-lining, with or without embolectomy, mechanical thrombectomy, or thrombolysis. Ultrasound-assisted thrombolysis has been shown to be successful for treatment of pulmonary embolism, deep vein thrombosis, and peripheral arterial thromboembolism, but has not been described before for TIPS occlusion...
May 12, 2017: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/28496923/emergency-covered-stent-implantation-for-rupture-of-a-pulmonary-vein-after-balloon-angioplasty-for-postinterventional-pulmonary-vein-stenosis
#15
Sebastian Hilbert, Silke John, Frank-Thomas Riede, Arash Arya, Ingo Paetsch, Cosima Jahnke, Gerhard Hindricks, Andreas Bollmann
Pulmonary vein (PV) stenosis is a known complication of PV isolation procedures for atrial fibrillation. We describe in this report a case of emergency covered stent implantation for rupture of a PV after balloon angioplasty for postinterventional PV stenosis occlusion. Focus is on stent implantation and on a novel aspect of magnetic resonance imaging for postprocedural outcome evaluation. A focused review of the current literature regarding ongoing limitations of PV stenosis treatment is provided.
October 2016: Journal of Atrial Fibrillation
https://www.readbyqxmd.com/read/28474657/tracheal-stenting-under-flexible-bronchoscopy-for-large-tracheoesophageal-malignant-lymphadenopathy
#16
Irfan Ismail Ayub, Kalaichelvi Kannan, R Dhenesh, Anand Thiagarajan
A 67-year-old man with poorly controlled chronic obstructive pulmonary disease presented with progressive dysphagia and was diagnosed with locally advanced carcinoma of the esophagus. Positron emission tomography-computed tomography staging showed mediastinal lymphadenopathy including a large lymph node in the tracheoesophageal groove with moderate tracheal compression. He was advised chemoradiotherapy but was reluctant to proceed with the same. He developed stridor 2 months later and repeat imaging showed increased size of the tracheoesophageal lymph node with critical airway narrowing...
May 2017: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/28471080/twenty-years-of-experience-with-intraoperative-pulmonary-artery-stenting
#17
Jeffrey D Zampi, Emefah Loccoh, Aimee K Armstrong, Sunkyung Yu, Ray Lowery, Albert P Rocchini, Jennifer C Hirsch-Romano
OBJECTIVES: To describe our 20-year experience with intraoperative pulmonary artery (PA) stent placement and evaluate long-term patient outcomes, specifically the need and risk factors for reintervention. BACKGROUND: Intraoperative PA stent placement is an alternative to surgical patch arterioplasty and percutaneous angioplasty or stent placement to treat branch PA stenosis. METHODS: We performed a retrospective review of all intraoperative PA stents placed at our institution from 1994-2013...
May 4, 2017: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/28461798/transcatheter-aortic-valve-implantation-in-a-patient-with-unicuspid-aortic-valve
#18
Angelo Nascimbene, Pranav Loyalka, Igor D Gregoric, Ricardo Bellera, Maan Malahfji, Marija Petrovic, Biswajit Kar
Transcatheter aortic valve replacement (TAVR) in patients with bicuspid aortic valves has been successfully performed, but there is a lack of published experience in percutaneous treatment of patients with unicuspid valves and severe aortic stenosis. We describe a case of TAVR in such a patient. A 31-year-old woman with Turner syndrome-who had undergone coarctation repair via subclavian flap at age 7 days and an aortic valvotomy at age 6 weeks-presented with severe symptomatic aortic stenosis. She was deemed inoperable because of her severe pulmonary hypertension and numerous comorbidities; consequently, a 20-mm Edwards Sapien 3 Transcatheter Heart Valve was offered for compassionate use...
April 2017: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28457532/usefulness-of-multidetector-computed-tomography-before-and-after-pulmonary-vein-isolation
#19
Ana Revilla Orodea, Israel Sánchez Lite, Julio César Gallego Beuth, Teresa Sevilla Ruiz, María G Sandín Fuentes, Ignacio Jesús Amat Santos, José Alberto San Román Calvar
OBJECTIVE: To analyze the usefulness of multidetector computed tomography (MDCT) in the preprocedural evaluation and follow-up of patients undergoing radiofrequency ablation of pulmonary veins and the impact of the MDCT findings on the approach to treatment. METHOD: We retrospectively analyzed 92 consecutive MDCT studies done in 80 patients between January 2011 and June 2013; 70 (76%) studies were done before a first ablation procedure and 22 (24%) were done in patients who had undergone an ablation procedure...
April 27, 2017: Radiología
https://www.readbyqxmd.com/read/28455489/st-segment-elevation-myocardial-infarction-with-acute-stent-thrombosis-presenting-as-intractable-hiccups-an-unusual-case
#20
Fan Zhang, Nosakhare Douglas Tongo, Victoria Hastings, Parisa Kanzali, Ziqiang Zhu, Hal Chadow, Shahrokh E Rafii
BACKGROUND Acute coronary syndrome (ACS) can present with atypical chest pain or symptoms not attributed to heart disease, such as indigestion. Hiccups, a benign and self-limited condition, can become persistent or intractable with overlooked underlying etiology. There are various causes of protracted hiccups, including metabolic abnormalities, psychogenic disorders, malignancy, central nervous system pathology, medications, pulmonary disorders, or gastrointestinal etiologies. It is rarely attributed to cardiac disease...
April 29, 2017: American Journal of Case Reports
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