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Endoluminal

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https://www.readbyqxmd.com/read/28099070/laparoscopic-rectal-dissection-assisted-by-transanal-endoluminal-videoendoscopy-through-a-blunt-tip-trocar
#1
Emanuele Asti, Andrea Lovece, Luigi Bonavina
BACKGROUND AND AIMS: Laparoscopic resection is a well-established approach for colorectal cancer surgery. In patients with rectal cancer treated by neoadjuvant chemoradiotherapy, it may be difficult to identify a clear safety margin for endostapling and subsequent anastomosis. We designed an innovative technical approach to assist colorectal anastomosis in these patients. TECHNIQUE: A four-trocar laparoscopic approach is used. After exploration of the abdominal cavity, the left colic flexure is completely mobilized...
January 18, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
https://www.readbyqxmd.com/read/28072899/endoluminal-vacuum-therapy-as-treatment-for-anastomotic-colorectal-leakage
#2
Giovanni Milito, Giorgio Lisi, Dario Venditti, Michela Campanelli, Elena Aronadio, Simona Grande, Francesca Cabry, Michele Grande
BACKGROUND: The clinical leakage rate after anterior resection varies from 2.8-20%, with a 6-22% mortality rate and a 10-80% risk of permanent stoma. Endo-SPONGE® (B. Braun Melsungen AG, Melsungen, Germany) may treat extraperitoneal anastomotic leakage in the lesser pelvis. It consists of an open-pored sponge inserted into the cavity. A drainage tube fixed to a low vacuum drainage system is then connected to the sponge through the anus. MATERIAL AND METHODS: Between January 2007 and December 2014, 14 patients with anastomotic leakage following low anterior resection were treated with Endo-SPONGE® and were prospectively evaluated...
January 10, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28070658/getting-the-gist-a-pictorial-review-of-the-various-patterns-of-presentation-of-gastrointestinal-stromal-tumors-on-imaging
#3
REVIEW
Dominic Scola, Lawrence Bahoura, Alexander Copelan, Ali Shirkhoda, Farnoosh Sokhandon
Gastrointestinal stromal tumors (GISTs), the most common mesenchymal tumors of the gastrointestinal tract, are a relatively recently described entity. Most exhibit a mutated tyrosine kinase receptor gene and in some capacity are treated by tyrosine kinase inhibitors. GISTs can occur across the age spectrum but are more common in patients older than 40 years. They exhibit a wide range of clinical presentations and imaging characteristics. All patterns of enhancement on contrast enhanced computed tomography (CECT) can be seen with GISTs, including hypoenhancing, isoenhancing, and hyperenhancing tumors...
January 10, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28068871/predilation-technique-with-balloon-angioplasty-to-facilitate-percutaneous-groin-access-of-large-size-sheath-through-scar-tissue
#4
Felice Pecoraro, Mayur Krishnaswamy, Johnny Steuer, Gilbert Puippe, Nicola Mangialardi, Thomas Pfammatter, Zoran Rancic, Frank J Veith, Neal S Cayne, Mario Lachat
Purpose Percutaneous remote access for endovascular aortic repair is an advantageous alternative to open access. Previous surgery in the femoral region and the presence of synthetic vascular grafts in the femoral/iliac arteries represent major limitations to percutaneous remote access. The aim of this study was to evaluate an original technique used for enabling percutaneous remote access for thoracic or abdominal endovascular aortic repair in patients with scar tissue and/or a vascular graft in the groin. Methods Twenty-five consecutive patients with a thoracic (11/25; 44%) or an aortic aneurysm (14/25; 66%) and with a synthetic vascular graft in the groin (16/25; 64%) or a redo groin access (9/25; 36%) were managed through the percutaneous remote access...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28032656/eus-guided-drainage-of-pancreatic-fluid-collections
#5
REVIEW
Tiing Leong Ang, Anthony Yuen Bun Teoh
Endoscopic ultrasound (EUS)-guided drainage is now firmly established as the best option for drainage of walled-off pancreatic fluid collections (PFC). It has high clinical efficacy, similar to surgical and percutaneous approaches, but with lower morbidity and costs. It is superior to non-EUS guided approaches because even collections without endoluminal bulging can be successfully drained. Transmural drainage alone is sufficient for pseudocysts, but in the context of walled-off pancreatic necrosis (WON), adjunctive direct endoscopic necrosectomy (DEN) may be required...
December 29, 2016: Digestive Endoscopy: Official Journal of the Japan Gastroenterological Endoscopy Society
https://www.readbyqxmd.com/read/28018512/prevention-of-embolization-in-concomitant-endovascular-therapy-for-thoracic-and-abdominal-aneurysms-with-severely-atheromatous-aorta
#6
Tomohiro Takano, Shinya Takase, Akihito Kagoshima, Hitoshi Yokoyama
A 74-year-old man with multiple aortic aneurysms and shaggy aorta was simultaneously treated by conventional open repair for an abdominal aortic aneurysm and endoluminal stent grafting for a thoracic aortic aneurysm. We performed intermittent clamping of the visceral and carotid arteries under an extracorporeal circulation circuit without a blood flow pump, which lead to the avoidance of embolization in spite of the disadvantage of endoluminal stent grafting for atheromatous aorta.
2016: Annals of Vascular Diseases
https://www.readbyqxmd.com/read/27997526/organ-preservation-with-local-excision-or-active-surveillance-following-chemoradiotherapy-for-rectal-cancer
#7
B Creavin, E Ryan, S T Martin, A Hanly, P R O'Connell, K Sheahan, D C Winter
BACKGROUND: Organ preservation has been proposed as an alternative to radical surgery for rectal cancer to reduce morbidity and mortality, and to improve functional outcome. METHODS: Locally advanced non-metastatic rectal cancers were identified from a prospective database. Patients staged ⩾T3 or any stage N+ were referred for neoadjuvant chemoradiotherapy (CRT) (50-54 Gy and 5-fluorouracil), and were reassessed 6-8 weeks post treatment. An active surveillance programme ('watch and wait') was offered to patients who were found to have a complete endoluminal response...
January 17, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/27987617/determining-the-origin-of-superficial-venous-reflux-in-the-groin-with-duplex-ultrasound-and-implications-for-varicose-vein-surgery
#8
Paul Zollmann, Christine Zollmann, Philipp Zollmann, Juergen Veltman, Dennis Kerzig, Martin Doerler, Markus Stücker
OBJECTIVE: The purpose of this paper was to describe patterns of superficial reflux in the groin with respect to the terminal valve (TV), which is located at the saphenous opening to the common femoral vein, the great saphenous vein, and its tributary veins. METHODS: This study included 2019 legs with chronic venous insufficiency that received endoluminal varicose vein treatment because of varicosities with insufficiency of the saphenofemoral junction (SFJ). In a preoperative duplex ultrasound investigation of the superficial vein system, reflux after provocation in the SFJ, great saphenous vein, cranial veins (superficial external pudendal vein, superficial epigastric vein, superficial circumflex iliac vein), and anterior and posterior accessory saphenous veins was recorded and classified on the basis of the origin of reflux...
January 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/27987599/a-preclinical-animal-study-of-a-novel-simple-and-secure-percutaneous-vessel-occluder-for-the-treatment-of-varicose%C3%A2-veins
#9
Arnold Miller, Nir Lilach, Raanan Miller, Lowell Kabnick
BACKGROUND: Secure, permanent occlusion of the great and small saphenous veins, their tributaries, and perforators is critical for the successful treatment of varicose veins. Current minimally invasive methods replacing surgery are all endoluminal and involve heat (radiofrequency or laser), chemicals (sclerosants and glues), or a combination of mechanical and chemical interventions. This study evaluated in a porcine model the performance of a percutaneous delivery of the Amsel Vessel Occluder (AVO; Amsel Medical Corp, Cambridge, Mass) using ultrasound guidance...
January 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/27981382/linx-%C3%A2-magnetic-esophageal-sphincter-augmentation-versus-nissen-fundoplication-for-gastroesophageal-reflux-disease-a-systematic-review-and-meta-analysis
#10
Daniel Skubleny, Noah J Switzer, Jerry Dang, Richdeep S Gill, Xinzhe Shi, Christopher de Gara, Daniel W Birch, Clarence Wong, Matthew M Hutter, Shahzeer Karmali
BACKGROUND: The LINX(®) magnetic sphincter augmentation system (MSA) is a surgical technique with short-term evidence demonstrating efficacy in the treatment of medically refractory or chronic gastroesophageal reflux disease (GERD). Currently, the Nissen fundoplication is the gold-standard surgical treatment for GERD. We are the first to systematically review the literature and perform a meta-analysis comparing MSA to the Nissen fundoplication. METHODS: A comprehensive search of electronic databases (e...
December 15, 2016: Surgical Endoscopy
https://www.readbyqxmd.com/read/27925483/application-of-gray-level-mapping-in-computed-tomographic-colonography-a-pilot-study-to-compare-with-traditional-surface-rendering-method-for-identification-and-differentiation-of-endoluminal-lesions
#11
Lih-Shyang Chen, Ta-Wen Hsu, Shao-Jer Chen, Shu-Han Chang, Chih-Wen Lin, Yu-Ruei Chen, Chin-Chiang Hsieh, Shu-Chen Han, Ku-Yaw Chang, Chun-Ju Hou
OBJECTIVES: In traditional surface rendering (SR) Computed tomographic endoscopy, only shape of endoluminal lesion is depicted without gray level information unless the volume rendering technique is used. However volume rendering technique is relatively slow and complex in terms of computation time and parameter setting. We use computed tomographic colonography (CTC) images as examples and report a new visualization technique by three dimensional (3D) gray level mapping (GM) to better identify and differentiate endoluminal lesions...
December 7, 2016: British Journal of Radiology
https://www.readbyqxmd.com/read/27924082/duodenal-endoluminal-barrier-sleeve-alters-gut-microbiota-of-zdf-rats
#12
T Kim, C L Holleman, T Ptacek, C D Morrow, K M Habegger
BACKGROUND/OBJECTIVES: The combination of energy dense diets and reduced energy expenditure in modern society has escalated the prevalence of obesity and obesity-related comorbidities. Among these disease states, type-2 diabetics (T2D) are disproportionately associated with obesity, suggesting a shared etiology. In conjunction with defects in hormonal and inflammatory states, obesity and T2D are also characterized by dysbiosis. METHODS: We have recently described the beneficial effects of duodenal nutrient exclusion, as induced by the duodenal endoluminal sleeve (DES); including body weight loss, prevented fat mass accumulation, and improved glucose tolerance in the ZDF rat, a rodent model of obesity and type-2 diabetes (T2D)...
January 3, 2017: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/27918636/4d-printing-of-shape-memory-based-personalized-endoluminal-medical-devices
#13
Matt Zarek, Nicola Mansour, Shir Shapira, Daniel Cohn
The convergence of additive manufacturing and shape-morphing materials is promising for the advancement of personalized medical devices. The capability to transform 3D objects from one shape to another, right off the print bed, is known as 4D printing. Shape memory thermosets can be tailored to have a range of thermomechanical properties favorable to medical devices, but processing them is a challenge because they are insoluble and do not flow at any temperature. This study presents here a strategy to capitalize on a series of medical imaging modalities to construct a printable shape memory endoluminal device, exemplified by a tracheal stent...
December 5, 2016: Macromolecular Rapid Communications
https://www.readbyqxmd.com/read/27908823/subintimal-recanalization-of-an-occluded-common-iliac-stent-a-case-report
#14
Giuseppe Asciutto, Roberta M Brambilla, Ioannis Bountouris, Martin Malina, Nuno V Dias
The purpose of this report is to describe a minimally invasive alternative endovascular technique for the treatment of chronically occluded stents when it is not possible to cross them endoluminally. A 71-year-old patient with recurrent severe lower limb claudication due to occlusion of a stent placed in the common iliac artery 5 years earlier underwent subintimal recanalization of the stented segment and restenting after failed intraluminal approach. The postoperative computed tomography scan showed that the restented segment was patent with a flattening of the previous stent...
November 28, 2016: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27903931/comparison-of-perioperative-outcomes-in-endovascular-versus-open-repair-for-juxtarenal-and-pararenal-aortic-aneurysms-a-propensity-matched-analysis
#15
Nathan T Orr, Daniel L Davenport, David J Minion, Eleftherios S Xenos
OBJECTIVE: Endoluminal aortic aneurysm repair is suitable within certain anatomic specifications. This study aims to compare 30-day outcomes of endovascular versus open repairs for juxtarenal and pararenal aortic aneurysms (JAA/PAAs). METHODS: The ACS-NSQIP database was queried from 2012 to 2015 for JAA/PAA repairs. Procedures characterized as emergent were included in the study; however, failed prior repairs and ruptured aneurysms were excluded. The preoperative and perioperative patient characteristics, operative techniques, and outcome variables were compared between the open aortic repair and the endovascular aortic repair groups...
November 30, 2016: Vascular
https://www.readbyqxmd.com/read/27900325/giant-idiopathic-renal-arteriovenous-fistula-managed-by-coils-and-amplatzer-device-case-report-and-literature-review
#16
Prashant Nagpal, Girish Bathla, Sachin S Saboo, Ashish Khandelwal, Abhishek Goyal, Frank J Rybicki, Michael L Steigner
An idiopathic renal arteriovenous (AV) fistula is a rare malformation of the kidney that may present insidiously with heart failure or hematuria. The treatment may be challenging due to large fistula size that may limit endovascular management. The authors report a case of an 85-year-old Caucasian woman who presented with acute heart failure and was found to have a right renal AV fistula. Since she had no prior history of renal intervention or trauma, a diagnosis of idiopathic renal AV fistula was made. She was managed by endoluminal occlusion using multiple stainless steel coils and Amplatzer vascular plug II device...
November 16, 2016: World Journal of Clinical Cases
https://www.readbyqxmd.com/read/27891001/rigid-bronchoscopic-management-of-acute-respiratory-failure-in-a-30-year-old-woman
#17
Karan Madan, Ashesh Dhungana, Neha Kawatra Madan, Anant Mohan, Vijay Hadda, Rakesh Garg, Deepali Jain, Randeep Guleria
A 30-year-old woman presented with a history of progressive shortness of breath, cough, and hoarseness. Stridor was audible on examination. Chest X-ray showed normal lung fields and contrast-enhanced computed tomography thorax showed lower tracheal occlusion with endoluminal growth. Diagnostic flexible bronchoscopy demonstrated multiple whitish glistening nodules over both vocal cords and lower tracheal occlusion by whitish nodular growth. In view of critical central airway obstruction, rigid bronchoscopy and excision of the lower tracheal growth were performed...
November 2016: Lung India: Official Organ of Indian Chest Society
https://www.readbyqxmd.com/read/27875189/corresponding-supine-and-prone-colon-visualization-using-eigenfunction-analysis-and-fold-modeling
#18
Saad Nadeem, Joseph Marino, Xianfeng Gu, Arie Kaufman
We present a method for registration and visualization of corresponding supine and prone virtual colonoscopy scans based on eigenfunction analysis and fold modeling. In virtual colonoscopy, CT scans are acquired with the patient in two positions, and their registration is desirable so that physicians can corroborate findings between scans. Our algorithm performs this registration efficiently through the use of Fiedler vector representation (the second eigenfunction of the Laplace-Beltrami operator). This representation is employed to first perform global registration of the two colon positions...
January 2017: IEEE Transactions on Visualization and Computer Graphics
https://www.readbyqxmd.com/read/27865144/successful-endovascular-management-of-endoleak-like-phenomenon-following-open-abdominal-aortic-aneurysm-repair
#19
Haider Khan Bangash, Mitra Rahmatzeh, Bibombe P Mwipatayi
INTRODUCTION: Endoleaks are a well-known complication after endovascular aortic repair. Type I endoleak-like phenomenon (also defined as a proximal pseudoaneurysm) post-open abdominal aortic aneurysm (AAA) repair is described as an anastomotic leak causing recurrent pressurization of the original aneurysm sac. It is rare but may result in aneurysmal sac rupture into the peritoneal cavity. REPORT: A 78-year-old man presented with a progressively enlarged aneurysmal sac due to proximal anastomotic degeneration of the proximal suture line associated with an outflow through a patent large lumbar vessel following a previous emergency open AAA repair...
2016: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/27863970/treatment-of-distal-anterior-cerebral-artery-aneurysms-with-the-pipeline-embolization-device
#20
Erez Nossek, Daniel W Zumofen, Avi Setton, Matthew B Potts, Eytan Raz, Maksim Shapiro, Howard A Riina, Maria Angeles De Miquel, David J Chalif, Peter K Nelson
Aneurysms of the anterior cerebral artery (ACA) located distal to the anterior communicating artery complex (ACOM) remain challenging to treat with surgical clip reconstruction as well as with endovascular coil-embolization strategies. We have treated five complex geometry distal ACA aneurysms with endoluminal reconstruction using the Pipeline Embolization Device (PED). Two aneurysms were of the dysplastic fusiform type. Three aneurysms were of complex saccular configuration. Three aneurysms were treated electively at the outset with PED...
January 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
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