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https://www.readbyqxmd.com/read/29349408/infolding-of-fenestrated-endovascular-stent-graft
#1
Jason G E Zelt, Prasad Jetty, Adnan Hadziomerovic, Sudhir Nagpal
We report a case of infolding of a fenestrated stent graft involving the visceral vessel segment after a juxtarenal abdominal aorta aneurysm repair. The patient remains free of any significant endoleak, and the aortic sac has shown regression. The patient remains asymptomatic, with no abdominal pain, with normal renal function, and without ischemic limb complications. We hypothesize that significant graft oversizing (20%-30%) with asymmetric engineering of the diameter-reducing ties may have contributed to the infolding...
September 2017: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29349373/lower-extremity-compartment-syndrome-after-elective-percutaneous-fenestrated-endovascular-repair-of-an-abdominal-aortic-aneurysm
#2
John F Charitable, Thomas S Maldonado
Ischemic complications after fenestrated endovascular aortic aneurysm repair (FEVAR) can result in significant morbidity and mortality. We present a case of a 65-year-old man who underwent a FEVAR complicated by bilateral lower extremity compartment syndrome requiring four-compartment fasciotomies. This ischemic complication was likely caused by sheath occlusion because the patient had no evidence of arterial injury or distal plaque embolization. This case highlights the importance of careful postoperative monitoring after FEVAR, because the larger sheaths required can be occlusive and result in lower extremity ischemia, even for relatively short cases...
March 2017: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29344065/optociliary-shunt-vessels-role-in-diagnosis-and-treatment-of-atypical-pseudotumor-cerebri
#3
Frederico Castelo Moura, Ida Fortini
A 46-year-old man presented with severe visual loss and optic atrophy associated with optociliary shunt vessels. The diagnostic work-up revealed intracranial hypertension and cerebral venous sinus stenosis, with no evidence of previous thrombosis. In view of the severe visual dysfunction, both eyes were submitted to optic nerve sheath fenestration. After surgery, a regression of collateral vessels was observed in both eyes.
August 2017: Neuro-ophthalmology
https://www.readbyqxmd.com/read/29342417/a-study-of-the-cost-effectiveness-of-fenestrated-branched-evar-compared-with-open-surgery-for-patients-with-complex-aortic-aneurysms-at-2-years
#4
Morgane Michel, Jean-Pierre Becquemin, Jean Marzelle, Céline Quelen, Isabelle Durand-Zaleski
OBJECTIVES: The aim was to assess the cost-effectiveness of fenestrated and branched stent grafts (f/b EVAR) compared with open surgical repair (OSR) in thoraco-abdominal or complex abdominal aortic aneurysms (TAAA/AAA) at 2 years. METHODS: Two matched cohorts of patients with TAAA or complex AAA were compared after a follow-up of two years. Patients included in the WINDOW French multicentre prospective registry were treated by f/b EVAR, and OSR patients were extracted from the French national hospital discharge database...
January 13, 2018: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29338918/filling-pressures-in-fontan-revisited-comparison-between-pulmonary-artery-wedge-ventricular-end-diastolic-and-left-atrial-pressures-in-adults
#5
William R Miranda, Alexander C Egbe, Donald J Hagler, Nathaniel W Taggart, Rick A Nishimura, Heidi M Connolly, Carole A Warnes
BACKGROUND: Pulmonary artery wedge pressure (PAWP) has been shown to correlate better with left atrial pressure (LAP) than ventricular end-diastolic pressure (VEDP) in acquired heart disease. The correlation between VEDP and PAWP and their performance as surrogates for LAP in Fontan patients is unknown. METHODS: Offline single-beat simultaneous measurement of PAWP and VEDP was performed in 50 adult Fontan patients and non-simultaneous hemodynamic data abstracted for calculation of pulmonary vascular resistance (PVR)...
December 28, 2017: International Journal of Cardiology
https://www.readbyqxmd.com/read/29334863/totally-percutaneous-fenestration-via-the-cheese-wire-technique-to-facilitate-endovascular-aneurysm-repair-in-chronic-aortic-dissection
#6
Jordan R Stern, Danielle E Cafasso, Darren B Schneider, Andrew J Meltzer
Here, we describe a totally percutaneous technique for longitudinal fenestration of a chronic dissection flap in the setting of endovascular aneurysm repair (EVAR), where the septum would otherwise preclude proper endograft sealing. This technique is demonstrated in a 65-year-old man with a history of open surgical repair of a Stanford type A aortic dissection, with a type B component that was managed nonoperatively. The patient developed aneurysmal degeneration of the infrarenal aorta during follow-up, and his anatomy was well suited for EVAR with the exception of a chronic dissection flap dividing the proximal seal zone...
January 1, 2018: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/29327862/endoscopic-fenestration-of-a-posterior-fossa-arachnoid-cyst-to-treat-a-chiari-like-headache
#7
Matteo Vitali, Andrea Cattalani, Vincenzo M Grasso, Alessandro Bertuccio, Andrea Barbanera
No abstract text is available yet for this article.
January 10, 2018: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/29327565/durability-of-fenestrated-endovascular-aortic-repair-for-juxta-renal-abdominal-aortic-aneurysm-repair
#8
Konstantinos Spanos, George Α Antoniou, Athanasios D Giannoukas, Fiona Rohlffs, Nikolaos Tsilimparis, Sebastian E Debus, Tilo Kölbel
BACKGROUND: The aim of this study was to evaluate the long term durability of fenestrated endovascular aortic aneurysm repair (F-EVAR) of juxta-renal aortic aneurysms (JAAAs) in terms of mortality, target visceral vessel (TVV) patency and re-intervention rates. EVIDENCE ACQUISITION: A systematic review and meta-analysis was performed. MEDLINE, CENTRAL, and Cochrane databases were searched with PRISMA methodology for studies reporting on F-EVAR of JAAA presenting follow up > 36 months...
January 9, 2018: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/29325945/impact-of-right-sided-aneurysm-rupture-status-and-size-of-aneurysm-on-perforator-infarction-following-microsurgical-clipping-of-posterior-communicating-artery-aneurysms-with-a-distal-transsylvian-approach
#9
Jun Tanabe, Tatsuya Ishikawa, Junta Moroi, Yoshinori Sakata, Hiromu Hadeishi
BACKGROUND: Posterior communicating artery (PCoA) aneurysms are among the most common aneurysms. Because blockage of the PCoA and perforators can cause adverse outcomes, occlusion of these arteries by surgical clipping should be avoided. The impact of factors on PCoA perforator infarction when using a distal transsylvian approach for PCoA aneurysms was examined. METHODS: A total of 183 patients underwent PCoA aneurysm clipping, excluding application of fenestrated clips...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29323269/postmitotic-nuclear-pore-assembly-proceeds-by-radial-dilation-of-small-membrane-openings
#10
Shotaro Otsuka, Anna M Steyer, Martin Schorb, Jean-Karim Hériché, M Julius Hossain, Suruchi Sethi, Moritz Kueblbeck, Yannick Schwab, Martin Beck, Jan Ellenberg
The nuclear envelope has to be reformed after mitosis to create viable daughter cells with closed nuclei. How membrane sealing of DNA and assembly of nuclear pore complexes (NPCs) are achieved and coordinated is poorly understood. Here, we reconstructed nuclear membrane topology and the structures of assembling NPCs in a correlative 3D EM time course of dividing human cells. Our quantitative ultrastructural analysis shows that nuclear membranes form from highly fenestrated ER sheets whose holes progressively shrink...
January 2018: Nature Structural & Molecular Biology
https://www.readbyqxmd.com/read/29322970/minimally-invasive-transforaminal-lumbar-interbody-fusion-using-bone-cement-augmented-pedicle-screws-for-lumbar-spondylolisthesis-in-patients-with-osteoporosis-case-series-and-review-of-literature
#11
Venkata Ramesh Chandra Vemula, Bodapati Chandramowliswara Prasad, M A Jagadeesh, Jayachandar Vuttarkar, Sanjeev Kumar Akula
BACKGROUND: Instrumentation in patients with osteoporosis is challenging. Bone cement-augmented fenestrated pedicle screw fixation is a new procedure for fixation in the osteoporotic bone; and, applying minimally invasive techniques to the above is a challenging and novel concept. AIMS: To evaluate the clinical and radiological outcome of minimally invasive spine surgery transforaminal lumbar interbody fusion (MIS-TLIF) in patients with spondylolisthesis and poor bone quality, performed with rigid instrumentation using bone cement [poly(methylmethacrylate)]-augmented fenestrated pedicle screws...
January 2018: Neurology India
https://www.readbyqxmd.com/read/29319351/amniotic-constriction-bands-secondary-deformities-and-their-treatments
#12
Benjamin T Drury, Ghazi M Rayan
BACKGROUND: The purpose of this study was to report the surgical treatment experience of patients with amniotic constriction bands (ACB) over a 35-year interval and detail consequential limb deformities with emphasis on hands and upper extremities, along with the nature and frequency of their surgical treatment methods. METHODS: Fifty-one patients were identified; 26 were males and 25 females. The total number of deformities was listed. The total number of operations, individual procedures, and operations plus procedures that were done for each patient and their frequency were recorded...
January 1, 2018: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/29318585/dermoscopic-characterization-of-cutaneous-lymphomas-a-pilot-survey
#13
Grant K Ghahramani, Kirsten E Goetz, Vincent Liu
BACKGROUND: While substantial dermoscopic analysis of melanocytic lesions has been performed, dermoscopic characterization of cutaneous lymphoid proliferations has been limited. Cutaneous lymphoma, particularly early mycosis fungoides (MF) and its variants, is often challenging to clinically and pathologically distinguish from inflammatory processes of the skin. This study aimed to survey the dermoscopic findings of cutaneous lymphomas and to discern whether any patterns might potentially serve as specific signatures...
January 10, 2018: International Journal of Dermatology
https://www.readbyqxmd.com/read/29317278/optimizing-self-wicking-nanowire-grids
#14
Hui Wei, Venkata P Dandey, Zhening Zhang, Ashleigh Raczkowski, Willam J Rice, Bridget Carragher, Clinton S Potter
We have developed a self-blotting TEM grid for use with a novel instrument for vitrifying samples for cryo-electron microscopy (cryoEM). Nanowires are grown on the copper surface of the grid using a simple chemical reaction and the opposite smooth side is used to adhere to a holey sample substrate support, for example carbon or gold. When small volumes of sample are applied to the nanowire grids the wires effectively act as blotting paper to rapidly wick away the liquid, leaving behind a thin film. In this technical note, we present a detailed description of how we make these grids using a variety of substrates fenestrated with either lacey or regularly spaced holes...
January 6, 2018: Journal of Structural Biology
https://www.readbyqxmd.com/read/29316348/ultrastructural-and-immunohistochemical-study-on-the-lamina-propria-cells-beneath-paneth-cells-in-the-rat-ileum
#15
Youhei Mantani, Miho Nishida, Kyouji Yamamoto, Kazuki Miyamoto, Hideto Yuasa, Natsumi Masuda, Takuya Omotehara, Hiroki Tsuruta, Toshifumi Yokoyama, Nobuhiko Hoshi, Hiroshi Kitagawa
Paneth cells secrete bactericidal substances in response to bacterial proliferation on the mucosal surface without directly contacting bacteria. However, the induction mechanism of this transient secretion has not been clarified, although nervous system and/or immunocompetent cells in the lamina propria (LP) might be involved. In the present study, we ultrastructurally and immunohistochemically investigated which LP cells are localized beneath Paneth cells and examined the relationship between the Paneth cell-derived cellular processes which extended into the LP and the LP cells...
January 6, 2018: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
https://www.readbyqxmd.com/read/29314567/antegrade-fenestration-and-re-entry-a-new-controlled-subintimal-technique-for-chronic-total-occlusion-recanalization
#16
Mauro Carlino, Lorenzo Azzalini, Satoru Mitomo, Antonio Colombo
OBJECTIVES: To describe and evaluate the efficacy of a novel antegrade dissection/re-entry (ADR) technique, called antegrade fenestration and re-entry (AFR), for chronic total occlusions (CTO) percutaneous coronary intervention (PCI). BACKGROUND: The widespread adoption of ADR is limited by several technical, logistic, and financial factors. Therefore, novel ADR techniques are needed. METHODS: AFR consists in creating multiple fenestrations of the dissection flap separating the false and true lumen...
January 4, 2018: Catheterization and Cardiovascular Interventions
https://www.readbyqxmd.com/read/29313455/preliminary-outcomes-of-the-lifestream-balloon-expandable-covered-stent-in-fenestrated-and-branched-thoracoabdominal-endovascular-repairs
#17
Luca Bertoglio, Diletta Loschi, Tommaso Cambiaghi, Daniele Mascia, Andrea Kahlberg, Germano Melissano, Roberto Chiesa
PURPOSE: To evaluate the 1-year outcomes of thoracoabdominal aortic aneurysm (TAAA) repair using fenestrated and branched stent-grafts and a novel balloon-expandable covered stent. METHODS: Between March 2015 and January 2017, 18 patients (median age 74.7 years; 14 men) received 43 LifeStream balloon-expandable covered stents in conjunction with Zenith fenestrated/branched stent-grafts to bridge 11 celiac trunks, 8 superior mesenteric arteries, and 24 renal arteries (total 32 fenestrations and 11 branches)...
January 1, 2018: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/29313454/a-multicenter-experience-with-a-new-fenestrated-branched-device-for-endovascular-repair-of-thoracoabdominal-aortic-aneurysms
#18
Marwan Youssef, Sebastien Deglise, Piotr Szopinski, Schäfer Jost-Philipp, Amer Jomha, Christian F Vahl, Ahmed Koshty
PURPOSE: To investigate the outcomes of patients who were treated for thoracoabdominal aortic aneurysms (TAAAs) using custom-made fenestrated-branched stent-grafts. METHODS: A consecutive series of 108 patients (mean age 73.5 years; 73 men) with TAAA were treated with E-xtra Design Engineering customized fenestrated-branched stent-grafts between November 2011 and January 2017. Data on baseline characteristics, procedures, and clinical follow-up were collected from 6 regional European surgical centers for retrospective analysis of endoleaks, reinterventions, and target vessel patency...
January 1, 2018: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/29313398/a-15-year-review-of-secondary-and-tertiary-optic-nerve-sheath-fenestration-for-idiopathic-intracranial-hypertension
#19
Andrew J Anzeljc, Patrick Frias, Brent R Hayek, Nancy Canter Weiner, Ted H Wojno, H Joon Kim
PURPOSE: Optic nerve sheath fenestration (ONSF) is a common surgical option for patients with idiopathic intracranial hypertension (IIH) with vision loss refractory to medical management. Little is known about the visual benefit of repeated ONSF. The authors aimed to assess the efficacy of secondary and tertiary ONSF in patients with IIH. METHODS: A retrospective chart review was performed on all patients with repeat ONSF for IIH at Emory University from 1999 to 2016...
January 9, 2018: Orbit
https://www.readbyqxmd.com/read/29313277/does-sleeve-shape-make-a-difference-in-outcomes
#20
Adel Alhaj Saleh, Michal R Janik, Rami R Mustafa, Mohammed Alshehri, Adil H Khan, Seyed Mohammad Kalantar Motamedi, Shiraz Rahim, Indravadan Patel, Amir Aryaie, Mujjahid Abbas, Tomasz Rogula, Leena Khaitan
INTRODUCTION: Sleeve gastrectomy (SG) is one of the most common procedures performed for weight loss. Many seek the "perfect sleeve" with the notion that the type of calibrating device affects sleeve shape, and this in turn will affect outcomes and complications. Two major concerns after SG are amount of weight loss and acid reflux. Our aim was to determine if the various calibration methods could impact sleeve shape and thereby allow for better outcomes of weight loss and reflux. METHODS: A retrospective chart review was performed of 210 patients who underwent SG and had postoperative upper gastrointestinal (UGI) study from 2011 to 2015 in a single center by a single (fellowship-trained) bariatric surgeon...
January 8, 2018: Obesity Surgery
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