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Pulmonary stent

Beomsu Shin, Boksoon Chang, Hojoong Kim, Byeong-Ho Jeong
BACKGROUND: Interventional bronchoscopy is considered an effective treatment option for malignant central airway obstruction (MCAO). However, there are few reports of interventional bronchoscopy in patients with MCAOs due to extra-pulmonary malignancy. Therefore, the objective of this study was to investigate treatment outcomes and prognostic factors for bronchoscopic intervention in patients with MCAO due to extra-pulmonary malignancy. METHODS: We retrospectively analyzed consecutive 98 patients with MCAO due to extra-pulmonary malignancy who underwent interventional bronchoscopy between 2004 and 2014 at Samsung Medical Center (Seoul, Korea)...
March 13, 2018: BMC Pulmonary Medicine
Qingling Zhou, Fei Teng, Yongshan Zhang, Qiang Sun, Guowei Meng
OBJECTIVES: We assessed the transventricular placement of porcine small intestinal submucosa (SIS) stent valves in a juvenile sheep model at the 3-month follow-up evaluation. METHODS: We constructed a pulmonary stent valve by suturing a porcine SIS bicuspid valve into a bell-shaped 'Z' nitinol stent and implanted 7 SIS stent valves transventricularly in the pulmonary position in 7 sheep. The function of the stent valves was assessed using a pulsatile flow simulation system in vitro...
March 7, 2018: Interactive Cardiovascular and Thoracic Surgery
Yoshiaki Takewa, Hirohito Sumikura, Satoru Kishimoto, Noritsugu Naito, Kei Iizuka, Daichi Akiyama, Ryosuke Iwai, Eisuke Tatsumi, Yasuhide Nakayama
Tissue-engineered heart valves (TEHVs) are expected to be viable grafts. However, it is unknown whether they transit their histological structure after implantation. We developed a novel autologous TEHV (named stent biovalve) for transcatheter implantation, using in-body tissue engineering based on a tissue encapsulation phenomenon. In this study, a time-course histological transition of implanted biovalves was investigated in goats. Three types of stent biovalves were prepared by 2 month embedding of plastic molds mounted with metallic stents, in the subcutaneous spaces...
March 5, 2018: ASAIO Journal: a Peer-reviewed Journal of the American Society for Artificial Internal Organs
Alexandru-Dan Sabău, Noor Hassan, Cătălin Gabriel Smarandache, Alin Miheţiu, Ștefan Ţîţu, Dan Sabău
PURPOSE: An original technique using laparoscopic instruments in a gastric endocavitary work chamber with potential for esophagus, stomach and D1 vizualisation. The main purpose of laparagastroscopy is to improve the quality of life of the patient disabling by the esophageal tumor. This method has several advantages: providing physiological feeding, harvesting materials for histopathological examination, solving eso-tracheal fistulas concurrently with the proposed operation and hemostatic role through compression, low energy and plastic consumption, rapid socio-economic reintegration, mental psychological care of the patient...
January 2018: Chirurgia
Nikolas Tsilimparis, Sebastian E Debus, Max Biehl, Konstantinos Spanos, Axel Larena-Avellaneda, Sabine Wipper, Fiona Rohlffs, Tilo Kölbel
OBJECTIVE: The aim of this study was to assess the immediate postoperative and midterm outcome of complex aortic aneurysm treatment necessitating four-vessel revascularization with either a total endovascular approach (fenestrated-branched stent graft [FBSG]) or a hybrid technique of visceral debranching plus stenting. METHODS: The clinical data of consecutively treated patients presenting with a complex aortic aneurysm that necessitated four-vessel revascularization between 2010 and 2015 were retrospectively analyzed...
March 1, 2018: Journal of Vascular Surgery
Joanna Ghobrial, Daniel S Levi, Jamil Aboulhosn
No abstract text is available yet for this article.
February 22, 2018: JACC. Cardiovascular Interventions
Osama Samara, Simon Davies
A 47-year-old patient with severe tricuspid and pulmonary regurgitation was electively admitted for surgical replacement of both valves. Post-op ECG changes suggested acute myocardial ischemia. Angiography revealed kinking in the distal RCA causing significant stenosis, which was treated by stenting.
March 2018: Journal of Invasive Cardiology
Smita Akkinapally, Shilpa G Hundalani, Madhulika Kulkarni, Caraciolo J Fernandes, Antonio G Cabrera, Binoy Shivanna, Mohan Pammi
BACKGROUND: Prostaglandin E1 (PGE1) is used to keep the ductus arteriosus patent and can be life-saving in neonates with ductal-dependent cardiac lesions. PGE1 is used to promote mixing of pulmonary and systemic blood flow or improve pulmonary or systemic circulations, prior to balloon atrial septostomy or surgery. PGE1 therapy may cause several short-term and long-term adverse effects. The efficacy and safety of PGE1 in neonates with ductal-dependent cardiac lesions has not been systematically reviewed...
February 27, 2018: Cochrane Database of Systematic Reviews
Eva Kapravelou, David Anderson, Gareth J Morgan
The use of hybrid techniques to avoid neonatal cardiopulmonary bypass in high-risk individuals is well reported in the setting of hypoplastic left heart syndrome. We describe the use of that technique as a bridging procedure in high-risk neonates with an interrupted aortic arch. We report three cases where hybrid branch pulmonary artery banding and ductal stent implantation has been successfully used to defer complete repair, allowing recovery, maturity, and weight gain. This strategy may be considered for patients deemed at high risk for primary neonatal repair...
March 2018: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
Sameer Lakha, C Y Maximilian Png, Kevin Chun, Windsor Ting
OBJECTIVE: Vascular manifestations including pulmonary artery aneurysms and venous thrombosis are seen in up to 14% of patients with Behcet's Disease. We report a patient who had recurrent deep vein thrombosis (DVT) as the presenting symptom of Behcet's Disease. METHODS: A 19-year-old male who presented with acute iliofemoral DVT, confirmed by intravascular ultrasound (IVUS) and venogram. May-Thurner syndrome was also observed. Repeated catheter-based pharmaco-mechanical thrombolysis, thrombectomy and subsequent iliac vein stenting were performed...
February 23, 2018: Annals of Vascular Surgery
Ruifeng Zhang, Guofeng Ma, Xiaoling Xu, Li Liang
BACKGROUND: Exposure to crystalline silica results in silicosis with initiation and progression of pulmonary fibrosis. The impaired lung parenchyma leads to pulmonary arterial hypertension and increased pressure in the right ventricle of the heart. Usually, the silicosis may be followed by enlargement of hilar lymphnodes, but silicosis-induced pulmonary artery stenosis with severe pulmonary hypertension is rare. Percutaneous pulmonary artery stenting and balloon angioplasty were performed to relieve stenosis and pulmonary hypertension...
January 2018: Medicine (Baltimore)
Gareth J Morgan, Kuberan Pushparajah, Srinivas Narayan, Eric Rosenthal
Branch pulmonary artery stenosis is one of the most common complications late after the arterial switch operation. The pathophysiology of stenosis in these circumstances is very different to that encountered in with normally related great vessels. The LeCompte manoeuvre leaves the pulmonary arteries straddled and stretched over the aortic root which contributing significantly to the degree of stenosis encountered. Unilateral branch pulmonary artery stenosis rarely leads to significant symptoms in young patients with biventricular repairs; however, significant discrepancies in the split flows between right and left lung may place the patient in an unfavourable physiological position as they move in to middle age...
February 22, 2018: Pediatric Cardiology
Xiaoli Luo, Weibin Shi, Xiaoqun Zhang, Xiaoli Yang, Wei Wang, Chunyu Zeng, Hongyong Wang
An elderly male patient with coronary heart disease underwent coronary angiography, which revealed bilateral severe coronary artery stenosis. Four stents were implanted, and at 5 h post-surgery, typical hemorrhagic shock appeared. Echocardiography verified heavy bleeding in the right thoracic cavity. Emergency angiography excluded injury or perforation of the coronary artery, aorta, right subclavian artery and brachiocephalic artery. Considering the patient's history of chronic obstructive pulmonary disease and severe cough during the operation, it was suspected that hemothorax was induced by a blood vessel rupture in the pleura...
March 2018: Experimental and Therapeutic Medicine
Damien Kenny, Terence Prendiville, Kevin P Walsh, Jonathan McGuinness
Repair of tetralogy of Fallot with atrioventricular septal defect may be associated with hemodynamic challenges in the postoperative period particularly as left atrial hypertension secondary to left atrioventricular valve dysfunction may exacerbate pulmonary regurgitation and augment low cardiac output. We present a case describing hybrid strategies to treat severe left atrioventricular and pulmonary valve regurgitation with modified balloon expandable stent valves to counter low cardiac output secondary to valve dysfunction...
March 2018: Annals of Thoracic Surgery
Kaitlin Balduf, T K Susheel Kumar, Umar Boston, Shyam Sathanandam, Marc V Lee, Tim Jancelewicz, Christopher J Knott-Craig
BACKGROUND: Hypoplastic left heart syndrome (HLHS) is the second most common congenital heart disease associated with congenital diaphragmatic hernia (CDH). The reported survival of neonates with CDH and HLHS is only 1-5%. We review our experience with CDH and HLHS and compare our outcomes to published literature. METHODS: Retrospective review of all neonates with CDH and HLHS at our institution over a 10 year period was performed. The morphology of cardiac and diaphragm defects, clinical course, treatment strategies and outcomes were reviewed and an algorithmic approach is proposed...
February 12, 2018: Seminars in Thoracic and Cardiovascular Surgery
Alessia Faccini, Gianfranco Butera
Patients with congenital heart disease and duct-dependent pulmonary circulation can undergo stenting of the patent ductus arteriosus (PDA). This case shows that, due to the physiological changes occurring after stent implantation, sometimes it is necessary to close the stented PDA rather than to redilate it.
February 2018: Clinical Case Reports
Lee Benson, Glen Van Arsdell
No abstract text is available yet for this article.
February 6, 2018: Circulation
Chongqing Huang, Guanfeng Yu, Jingyong Huang
OBJECTIVE: To investigate the clinical effect of endovascular interventional treatment for iliac vein compression syndrome (IVCS). MATERIAL AND METHODS: The data of 68 patients with IVCS, underwent interventional treatment in our hospital, were analyzed retrospectively. Among these patients, 46 were complicated with lower extremity varicose veins. 65 patients underwent stent implantation, while 3 patients underwent simple balloon angioplasty. 14 patients were complicated with post-thrombotic syndrome (PTS) and 11patients with acute deep venous thrombosis (DVT)...
February 8, 2018: Annals of Vascular Surgery
Uygar Yörüker, Hakan Akintürk
This article reviews our experience using hybrid stage I palliation in the neonatal period and subsequently with comprehensive stage II palliation for hypoplastic left heart syndrome. Between June 1998 and April 2017, 154 patients with the diagnosis of hypoplastic left heart syndrome and variants underwent a hybrid stage I palliation (bilateral pulmonary artery banding and ductal stenting). One hundred thirty-nine patients could be further univentricularly palliated. One hundred twenty-one patients underwent a comprehensive stage II operation with an operative mortality of 6...
March 2018: Seminars in Thoracic and Cardiovascular Surgery. Pediatric Cardiac Surgery Annual
Alessia Faccini, Gianfranco Butera
Nowadays, percutaneous pulmonary valve implantation (PPVI) is a suitable alternative to surgical procedure in patients with right ventricle outflow tract dysfunction. Two valves are currently available for PPVI: the Melody valve and the Edwards Sapien valve. The following complications may occur: coronary artery compression, deformation of the aortic root, stent or valve embolization, damage of distal pulmonary arteries, access site injuries. Here, we report on three cases of severe tricuspid regurgitation due to valvular and subvalvular apparatus damage during Edwards Sapien XT valve implantation...
February 6, 2018: Catheterization and Cardiovascular Interventions
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