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https://www.readbyqxmd.com/read/28648654/gianturco-z-stent-fixation-of-a-modified-iliac-limb-stent-graft-endoprosthesis-for-the-treatment-of-malignant-superior-vena-syndrome
#1
Jeffrey Forris Beecham Chick, Matthew L Osher, Kyle J Cooper, Wael A Saad, David M Williams, Minhaj S Khaja
Superior vena cava (SVC) syndrome, characterized by facial and arm swelling, is most frequently caused by intrathoracic malignancies. Decompression may be achieved with endovenous stent placement. Polytetrafluoroethylene-covered stents have shown to have higher long-term cumulative patency rates compared with uncovered stents for the treatment of malignant SVC syndrome. Unfortunately, polytetrafluoroethylene-covered stents are not readily available worldwide. Moreover, the existing armamentarium, including balloon-expandable iCAST stents (maximum diameter 10 mm) and heparin-coated Viabahn stent-graft endoprostheses (maximum diameter 13 mm), are too small to adequately treat malignant obstruction of the SVC...
June 22, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28648532/the-stent-is-not-to-blame-lessons-learned-with-a-simplified-us-version-of-the-frozen-elephant-trunk
#2
Ourania Preventza, Joseph S Coselli, Jessica Mayor, Katherine Simpson, Julius Carillo, Matt D Price, Lorraine D Cornwell, Shuab Omer, Kim I de la Cruz, Faisal G Bakaeen, Arin Jobe
BACKGROUND: We analyzed trends, assessed outcomes and lessons learned, and investigated whether using a simplified US version of the frozen elephant trunk (FET) technique to treat complex arch pathology poses additional risk. METHODS: From 2010 to 2015, we performed 129 consecutive ET procedures (traditional ET [t-ET], n = 92 [71.3%]; FET, n = 37 [28.7%]) for chronic dissecting (n = 62 [48.1%]) and atherosclerotic aneurysms (n = 67 [51.9%]). A stepwise logistic regression model using preoperative and intraoperative variables was created to analyze the outcomes...
June 22, 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28643071/forgotten-biliary-stents-ignorance-is-not-bliss
#3
Saket Kumar, Abhijit Chandra, Rugved Kulkarni, Ajeet Pratap Maurya, Vishal Gupta
BACKGROUND: Endoscopic biliary stenting is a common procedure in routine gastroenterology practice. Plastic stents are the most common type of stents used and are indicated mainly for short-term biliary drainage. Prolonged indwelling plastic stents can result in disastrous complications. METHODS: We conducted a retrospective analysis of patients who presented with complications of forgotten biliary stents in a tertiary care hospital during January 2010 to October 2016...
June 22, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28625098/endoprosthetic-replacement-versus-cement-spacer-in-reconstruction-of-proximal-humerus-after-tumor-resection-cost-and-benefits
#4
Awad Abdelmonem Rafalla, El Sayed Abdelhalim Abdullah
BACKGROUND: Proximal end of the humerus is a common site for both primary and metastatic bone tumors. Limb salvage with endoprosthetic replacement is the most common means of reconstruction, but it has been proved that cement spacer are more beneficial for inferior shoulder function. Thus, limb salvage can be replaced by cheaper spacers especially in poor societies. PATIENTS AND METHODS: This study included 20 patients, of whom 14 were female, with a mean age of 40...
May 2017: Journal of Orthopaedic Surgery
https://www.readbyqxmd.com/read/28616352/aortic-polyaneurysmal-disease-case-report
#5
Lucas Alvarez García, Paula Vidal Fernández, Miguel Felipe García Gimeno, Miguel Angel González Arranz, Maria Emma González González, Diego López García, Salvador Tagarro Villalba, Santiago Rodríguez Camarero
We report a 78-year-old man who presents progression of his aneurysmatic pathology with previous abdominal infrarenal aortic surgery 20 years later. The computed tomography (CT) scan showed proximal degeneration of the infrarenal aorta, left iliac aneurysm and a new descending thoracic aneurysm close to the aortic arch. The surgical treatment was staged in two times due to the evolution of the aneurysm measures. First, the thoracic and the infrarenal aneurysms were covered each one with endoprosthesis. Four years later the iliac disease was solved with a branched specific iliac endograft...
May 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/28597287/comparison-of-endoscopic-sphincterotomy-techniques-after-billroth-ii-gastrectomy-using-a-novel-mechanical-simulator
#6
Mohamed Abdelhafez, Eckart Frimberger, Peter Klare, Bernhard Haller, Roland M Schmid, Stefan von Delius
BACKGROUND AND AIMS: A postsurgical anatomy renders endoscopic sphincterotomy (EST) more challenging. Although different EST techniques for such a situation exist, comparative studies are lacking. The aim of the study was to compare the efficacy of different EST techniques using a novel mechanical simulator. METHODS: Ten expert endoscopists performed 6 different EST techniques on a novel mechanical Billroth II (BII) simulator in a random sequence. The EST techniques were (1) standard sphincterotome used with a side-viewing endoscope, (2) BII sphincterotome used with a side-viewing endoscope, (3) needle-knife EST guided by biliary endoprosthesis used with a side-viewing endoscope, (4) standard sphincterotome used with a forward-viewing endoscope, (5) BII sphincterotome used with a forward-viewing endoscope, and (6) needle-knife EST guided by biliary endoprosthesis used with a forward-viewing endoscope...
June 8, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28583736/partial-distal-deployment-for-precise-placement-of-the-gore-thoracic-endoprosthesis
#7
Gregory A Stanley
The GORE TAG Thoracic Endoprosthesis (TAG) device (W. L. Gore & Associates, Flagstaff, Ariz) and the GORE Conformable TAG Thoracic Endoprosthesis (CTAG) are commonly implanted and effective stent grafts for use during thoracic endovascular aortic repair. Precise placement of the endograft is paramount during thoracic endovascular aortic repair, but like all thoracic stent grafts, maldeployment with inaccurate landing has been reported. The partial distal deployment technique describes an alteration of the TAG and CTAG deployment mechanism to allow isolated deployment of the distal half of the graft, which provides stability during deployment...
June 2, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28559174/prospective-multicenter-study-of-endovascular-repair-of-aortoiliac-and-iliac-aneurysms-using-the-gore-iliac-branch-endoprosthesis
#8
Darren B Schneider, Jon S Matsumura, Jason T Lee, Brian G Peterson, Rabih A Chaer, Gustavo S Oderich
OBJECTIVE: The GORE EXCLUDER Iliac Branch Endoprosthesis (IBE; W. L. Gore and Associates, Flagstaff, Ariz) is an iliac branch stent graft system designed to preserve internal iliac artery perfusion during endovascular repair of aortoiliac aneurysms (AIAs) and common iliac artery (CIA) aneurysms (CIAAs). We report the 6-month primary end point results of the IBE 12-04 United States pivotal trial for endovascular treatment of AIAs and CIAAs using the IBE device. METHODS: The trial prospectively enrolled 63 patients with AIA or CIAA who underwent implantation of the IBE device at 28 centers in the United States from 2013 to 2015...
May 27, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28544592/direct-influence-of-titanium-and-zirconia-particles-on-the-morphology-and-functionality-of-mature-human-osteoclasts
#9
Juliane Pasold, Jana Markhoff, Jenny Tillmann, Martin Krogull, Phillip Pisowocki, Rainer Bader
Within the last ten years of biomedical implants, the focus is increasingly on bioceramics, specifically on zirconia (ZrO2 ). Hence, we analyzed the impact of ZrO2 particles in comparison to titanium particles on mature human osteoclasts (OCs) as little is known about the direct effect of wear particles on mature OCs and their role in the osteolytic process during aseptic endoprosthesis loosening. Changes in cell morphology and functionality of OCs incubated with particles in different concentrations were investigated in vitro...
May 22, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28516223/two-stage-revision-hip-arthroplasty-in-periprosthetic-joint-infection-comparison-study-with-or-without-the-use-of-a-spacer
#10
Dariusz Marczak, Marek Synder, Marcin Sibiński, Michał Polguj, Julian Dudka, Jacek Kowalczewski
PURPOSE: The aim of this study was to compare two methods of two-stage surgery for PJI (periprosthetic joint infection) after THA (total hip arthroplasty): one with and one without the use of an antibiotic-loaded cement spacer. METHODS: This retrospective study was performed on 99 consecutive patients (99 hips) with a minimum follow-up of 24 months. Patients were divided into two groups: (1) in whom the operation was performed using a spacer, and (2) for whom a spacer was not used...
May 18, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28514895/outcomes-after-use-of-aortouniiliac-endoprosthesis-versus-modular-or-unibody-bifurcated-endoprostheses-for-endovascular-repair-of-ruptured-abdominal-aortic-aneurysms
#11
Prateek K Gupta, Kelly Kempe, Reshma Brahmbhatt, Himani Gupta, Jorge Montes, R Armour Forse, Shaun M Stickley, Michael J Rohrer
OBJECTIVES: Outcomes after endovascular repair (EVAR) of ruptured abdominal aortic aneurysms (rAAAs) have been widely published. There is, however, controversy on the role of the use of aortouniiliac endoprosthesis (AUI) versus modular or unibody bifurcated endoprosthesis (MUB) for repair of rAAAs. We study and compare 30-day outcomes after use of AUI and MUB for all rAAAs focusing specifically on patients with instability. MATERIALS AND METHODS: Patients who underwent EVAR for rAAA (n = 425) using AUI (n = 55; 12...
January 1, 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28507752/effective-treatment-of-benign-biliary-strictures-with-a-removable-fully-covered-self-expandable-metal-stent-a-prospective-multicenter-european-study
#12
Arthur Schmidt, Tilman Pickartz, Markus M Lerch, Fabrizio Fanelli, Fausto Fiocca, Pierleone Lucatelli, Fabrizio Cereatti, Albrecht Hoffmeister, Werner van Steenbergen, Matthias Kraft, Benjamin Meier, Karel Caca
BACKGROUND: Temporary placement of removable, fully covered, self-expandable metal stents (fcSEMS) for treatment of benign biliary strictures (BBS) has been reported to be effective. However, the optimal extraction time point remains unclear and stent migration has been a major concern. OBJECTIVE: The objective of this study was to evaluate the efficacy and safety of this treatment modality using an fcSEMS with a special antimigration design and prolonged stent indwell time...
April 2017: United European Gastroenterology Journal
https://www.readbyqxmd.com/read/28492573/-lotus-sadra-valve-implantation-complicated-by-type-b-aortic-dissection-diagnosis-and-treatment
#13
Emanuele Cigala, Ida Monteforte, Orlando Piro, Vittorio Monda, Claudia Capozzolo, Giulio Bonzani
Transcatheter aortic valve implantation (TAVI) is a validated technique for the treatment of aortic valve stenosis in patients with high surgical risk or inoperable. We present the case of an 80-year-old woman with severe aortic valve stenosis (mean gradient 55 mmHg), mild surgical risk, who refused traditional surgery. We implanted a Lotus Sadra 25 mm (Boston Scientific, Marlborough, MA, USA) via the transfemoral route. During pull back delivery, the patient experienced interscapular pain with angiographic evidence of type B aortic dissection effectively treated by implanting a vascular endoprosthesis Valiant 30 x 150 mm (Medtronic Vascular, Santa Rosa, CA, USA)...
April 2017: Giornale Italiano di Cardiologia
https://www.readbyqxmd.com/read/28483618/perigraft-seroma-after-extra-anatomic-bypass-case-series-and-review-of-the-literature
#14
REVIEW
Daniele Bissacco, Maurizio Domanin, Silvia Romagnoli, Livio Gabrielli
AIM: extra-anatomic bypass (EAB) remains a viable alternative for lower limbs revascularization if aorto-bifemoral bypass and endovascular therapy are contraindicated. Among EAB, periprosthetic seroma (PS) occurs in about 4% of cases. Diagnostic and therapeutic management, as well as standardized treatment paradigm, are still not well defined. The aim of this study is to report 5 PS cases in EAB and to review literature about similar cases. METHODS: We retrospectively reviewed EAB performed during the period 2002-2015...
May 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28470462/-connecting-adapter-for-coupling-exoprostheses-to-endoshafts-demands-on-orthopedic-technicians-with-respect-to-planning-and-application
#15
H Grundei, A Timmermann
INTRODUCTION: Transcutaneous, bone anchored prostheses have proved to be an alternative for amputees. In addition to the safe osseointegration of the implant, the correct prosthetic alignment is also important. Therefore, the interaction between prosthesis components and the prosthesis wearer is significant and the role of the certified prosthetist should not be underestimated. AIM: The aim of treatment is the best possible compensation of disability after limb loss with increase of physical abilities and comfort of the prosthesis wearer by means of bone anchored prosthesis...
May 2017: Der Unfallchirurg
https://www.readbyqxmd.com/read/28455561/radiographic-assessment-of-distal-femur-cemented-stems-in-tumor-endoprostheses
#16
R E Turcotte, N A Stavropoulos, J Toreson, M Alsultan
BACKGROUND: Distal femoral endoprosthesis (DFE) has become the optimal method of reconstruction in the skeletally mature patients treated for malignant bone tumor. Albeit literature has reported wide range of aseptic loosening in cemented components (6-32%), few authors showed that cement was not detrimental to long-term success of primary distal femoral implants possibly relating to cementing technique. METHODS: A series of consecutive of DFE (MRS and GMRS, Styker Orthopaedics, Mahwah, NJ) was retrospectively reviewed for evidence of loosening on plain radiographs...
April 28, 2017: European Journal of Orthopaedic Surgery & Traumatology: Orthopédie Traumatologie
https://www.readbyqxmd.com/read/28442660/anatomic-feasibility-of-next-generation-stent-grafts-for-the-management-of-type-a-aortic-dissection-in-japanese-patients
#17
Naoki Fujimura, Shinji Kawaguchi, Hideaki Obara, Akihiro Yoshitake, Masanori Inoue, Satoshi Otsubo, Yuko Kitagawa, Hideyuki Shimizu
BACKGROUND: The aims of the present study were to analyze the anatomical characteristics of type A aortic dissections (TAAD) in Japanese patients and evaluate the feasibility of 3 next-generation stent grafts dedicated to ascending/arch aortic lesions.Methods and Results:We analyzed 172 consecutive patients surgically treated for TAAD at 2 institutions between 2007 and 2015. Computed tomography (CT) images and operative records were used to identify the location of entry tear (ET)...
April 25, 2017: Circulation Journal: Official Journal of the Japanese Circulation Society
https://www.readbyqxmd.com/read/28411526/endovascular-repair-of-a-ruptured-thoracic-aortic-dissection-with-a-right-sided-aortic-arch-a-case-report
#18
Jeremy L Irvan, James R Elmore, Sarah L Flora, Evan J Ryer
BACKGROUND: Emergency treatment of complex aortic pathology is challenging in the setting of a right-sided aortic arch. We report the successful treatment of a ruptured thoracic aortic aneurysm (TAA) in the setting of a Stanford type B aortic dissection (TBAD) and right-sided aortic arch. PRESENTATION OF CASE: The patient is a 66-year-old male with chronic kidney disease (CKD) admitted with right sided chest pain and hypotension. Computed tomography angiography (CTA) revealed a 5cm ruptured TAA in the setting of a TBAD and right-sided aortic arch...
2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28390287/influence-of-the-fixation-region-of-a-press-fit-hip-endoprosthesis-on-the-stress-strain-state-of-the-bone-implant-system
#19
Ievgen Levadnyi, Jan Awrejcewicz, Márcio Fagundes Goethel, Alexander Loskutov
Although significant progress has been made in the development of total hip replacement, behaviour of the femoral component of an endoprosthesis in relation to the type of its fixation in the bone is still not fully understood. In this paper, behaviour of the femoral bone and the stem prosthesis is studied taking into account different types of prosthesis fixation in the medullary canal of the femur under the action of functional loads. For an analysis, a three-dimensional model of a femur has been developed based on the results of a computed tomography...
April 2, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28385944/the-stability-of-the-hip-after-the-use-of-a-proximal-femoral-endoprosthesis-for-oncological-indications-analysis-of-variables-relating-to-the-patient-and-the-surgical-technique
#20
MULTICENTER STUDY
E R Henderson, B J Keeney, E Pala, P T Funovics, W C Eward, J S Groundland, L K Ehrlichman, S S E Puchner, B E Brigman, J E Ready, H T Temple, P Ruggieri, R Windhager, G D Letson, F J Hornicek
AIMS: Instability of the hip is the most common mode of failure after reconstruction with a proximal femoral arthroplasty (PFA) using an endoprosthesis after excision of a tumour. Small studies report improved stability with capsular repair of the hip and other techniques, but these have not been investigated in a large series of patients. The aim of this study was to evaluate variables associated with the patient and the operation that affect post-operative stability. We hypothesised an association between capsular repair and stability...
April 2017: Bone & Joint Journal
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