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https://www.readbyqxmd.com/read/28108931/systematic-review-and-meta-analysis-of-surgicaltreatment-of-non-zenker-s-oesophageal-diverticula
#1
David S Y Chan, Antonio Foliaki, Wyn G Lewis, Geoffrey W B Clark, Guy R J C Blackshaw
BACKGROUND: Oesophageal diverticula are rare outpouchings of the oesophagus which may be classified anatomically as pharyngeal (Zenker's), mid-oesophageal and epiphrenic. While surgery is indicated for symptomatic patients, no consensus exists regarding the optimum technique for non-Zenker's oesophageal diverticula. The aim of this study was to determine the outcome of surgery in patients with non-Zenker's oesophageal diverticula. METHODS: PubMed, MEDLINE and the Cochrane Library (January 1990 to January 2016) were searched for studies which reported outcomes of surgery in patients with non-Zenker's oesophageal diverticula...
January 20, 2017: Journal of Gastrointestinal Surgery: Official Journal of the Society for Surgery of the Alimentary Tract
https://www.readbyqxmd.com/read/28081029/a-rarely-seen-complication-that-causes-increase-in-morbidity-in-tetraplegic-patients-zenker-diverticula
#2
Zeynep Kiraç Ünal, Ebru Umay, İbrahim Gündoğdu, Yasemin Tombak, Aytül Çakci
Although spinal cord injury (SCI) damages the spinal cord, physiological changes due to SCI can affect many organs and systems of the human body. While respiratory problems are common following cervical SCI, dysphagia is a relatively uncommon secondary complication that occurs after cervical SCI. We report a case of recurrent aspiration pneumonia due to Zenker diverticulum in 26-year-old tetraplegic patient with a chronic history of silent aspirations and dysphagia contributing to functional disability.
January 9, 2017: American Journal of Physical Medicine & Rehabilitation
https://www.readbyqxmd.com/read/28078879/zenker-diverticulum-in-the-right-side-of-the-neck-resembling-a-thyroid-mass-at-ultrasound
#3
S Alessandrini, I Samperi, F De Cristofaro, E D'Armiento, D Diacinti, A Pernazza, D Bosco, V Ascoli, S Ulisse
Zenker’s diverticulum represents the most common form of pharyngo-oesophageal diverticula usually occurring on the left side of the neck. Due to its anatomical proximity to the thyroid, it can mimic a thyroid mass. Here we describe the case of an asymptomatic 49-year-old man referred to the Thyroid Clinic of the Policlinico Umberto I Hospital-“Sapienza” University of Rome for thyroid sonography due to a family history of autoimmune thyroid disease. The patient’s thyroid blood tests did not reveal any abnormalities...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28074573/structural-functional-and-clinical-characterization-of-a-novel-ptpn11-mutation-cluster-underlying-noonan-syndrome
#4
Luca Pannone, Gianfranco Bocchinfuso, Elisabetta Flex, Cesare Rossi, Giuseppina Baldassarre, Christina Lissewski, Francesca Pantaleoni, Federica Consoli, Francesca Lepri, Monia Magliozzi, Massimiliano Anselmi, Giovanni Sorge, Kadri Karaer, Goran Cuturilo, Alessandro Sartorio, Sigrid Tinschert, Maria Accadia, Maria C Digilio, Giuseppe Zampino, Alessandro De Luca, Hélène Cavé, Martin Zenker, Bruce D Gelb, Bruno Dallapiccola, Lorenzo Stella, Giovanni B Ferrero, Simone Martinelli, Marco Tartaglia
Germline mutations in PTPN11, the gene encoding the Src-homology 2 (SH2) domain-containing protein tyrosine phosphatase (SHP2), cause Noonan syndrome (NS), a relatively common, clinically variable, multisystem disorder. Here, we report on the identification of five different PTPN11 missense changes affecting residues Leu(261) , Leu(262) and Arg(265) in 16 unrelated individuals with clinical diagnosis of NS or with features suggestive for this disorder, specifying a novel disease-causing mutation cluster. Expression of the mutant proteins in HEK293T cells documented their activating role on MAPK signaling...
January 10, 2017: Human Mutation
https://www.readbyqxmd.com/read/28054111/-surgical-treatment-of-esophageal-diverticula-endoscopic-or-open-approach
#5
H Feußner, N Hüser, D Wilhelm, A Fingerle, A Jell, H Friess, M Bajbouj
Esophageal diverticula are comparatively rare. The majority are Zenker's diverticula but parabronchial and epiphrenic diverticula can also occur. Parabronchial diverticula are of low clinical relevance, whereas Zenker's and epiphrenic diverticula both belong to the group of pulsion diverticula and can become clinically apparent by dysphagia and regurgitation. Approximately 100 years after the first surgical treatment, peroral approaches (e.g. stapler dissection and flexible endoscopic diverticulotomy) have now achieved a certain level of importance...
January 4, 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28052332/normal-fluoroscopic-appearance-status-post-successful-endoscopic-zenker-diverticulotomy
#6
Naren N Venkatesan, Lisa M Evangelista, Maggie A Kuhn, Peter C Belafsky
OBJECTIVE: Endoscopic Zenker diverticulotomy (EZD) is a primary treatment for Zenker diverticulum (ZD). During EZD, the diverticulum is not excised, and interpretation of postoperative videofluoroscopic swallow study (VFSS) is challenging. The purpose of this investigation was to describe normal VFSS findings status post-successful EZD. METHODS: The charts of all patients with ZD treated at our center between October 01, 2011, and May 30, 2014, were abstracted. Outcome measures included recidivistic diverticulum size, Eating Assessment Tool-10 (EAT-10), penetration aspiration scale, pharyngeal constriction ratio (PCR), and pharyngoesophageal segment (PES) opening...
January 4, 2017: Laryngoscope
https://www.readbyqxmd.com/read/28042249/endoscopic-treatment-of-a-zenker-s-bilocular-diverticulum-with-cap-and-tt-knife-catheter
#7
Konstantinos Delis, John Robotis, Michalis Chronakis
No abstract text is available yet for this article.
2017: Annals of Gastroenterology: Quarterly Publication of the Hellenic Society of Gastroenterology
https://www.readbyqxmd.com/read/28033492/how-cells-change-shape-and-position-in-the-early-mammalian-embryo
#8
REVIEW
Melanie D White, Jennifer Zenker, Stephanie Bissiere, Nicolas Plachta
During preimplantation development, cells of the mammalian embryo must resolve their shape and position to ensure the future viability of the fetus. These initial changes are established as the embryo expands from one to thirty-two cells, and a group of originally spherical cells is transformed into a more polarized structure with distinct cell geometries and lineages. Recent advances in the application of non-invasive imaging technologies have enabled the discovery of mechanisms regulating patterning of the early mammalian embryo...
December 26, 2016: Current Opinion in Cell Biology
https://www.readbyqxmd.com/read/27993297/young-child-with-breathlessness
#9
Marjolein Slaa, Nicole Dyer, Imke Zenker, Peter Ferguson, Simon Craig
No abstract text is available yet for this article.
January 2017: Annals of Emergency Medicine
https://www.readbyqxmd.com/read/27933354/-pathophysiology-diagnosis-and-treatment-of-zenker-s-diverticulum
#10
T Hussain, J T Maurer, S Lang, B A Stuck
Zenker's diverticulum occurs at the dorsal pharyngoesophageal junction through Killian's dehiscence and is caused by increased intrabolus pressure. Symptomatic disease most frequently affects male elderly patients. Primary symptom is oropharyngeal dysphagia, as well as regurgitation of undigested food, halitosis, and chronic aspiration. A barium swallow study is performed to confirm diagnosis. Treatment options for symptomatic patients include open surgery, as well as transoral rigid or flexible endoscopic procedures...
December 8, 2016: HNO
https://www.readbyqxmd.com/read/27900775/pilot-testing-of-a-novel-surgical-simulator-for-endoscopic-zenker-s-diverticulotomy
#11
Nathan D Wiebracht, John P Giliberto, Charles Myer, Keith Casper, Kaalan E Johnson
OBJECTIVES/HYPOTHESIS: Restrictions on resident work hours and the increasing purview of otolaryngology reduce the efficacy of the traditional surgical training model. With limited case volumes at many institutions and the unique instrumentation of endoscopic Zenker's diverticulotomy (EZD), simulation may be useful to improve training. In this study, a novel surgical simulator for EZD is developed and validated. STUDY DESIGN: Simulation model development. METHODS: An EZD model was designed using an intubation trainer and disposable diverticulum inserts...
November 30, 2016: Laryngoscope
https://www.readbyqxmd.com/read/27861610/the-chloroplast-srp-systems-of-chaetosphaeridium-globosum-and-physcomitrella-patens-as-intermediates-in-the-evolution-of-srp-dependent-protein-transport-in-higher-plants
#12
Dominik Ziehe, Beatrix Dünschede, Mira Zenker, Silke Funke, Marc M Nowaczyk, Danja Schünemann
The bacterial signal recognition particle (SRP) mediates the cotranslational targeting of membrane proteins and is a high affinity complex consisting of a SRP54 protein subunit (Ffh) and an SRP RNA. The chloroplast SRP (cpSRP) pathway has adapted throughout evolution to enable the posttranslational targeting of the light harvesting chlorophyll a/b binding proteins (LHCPs) to the thylakoid membrane. In spermatophytes (seed plants), the cpSRP lacks the SRP RNA and is instead formed by a high affinity interaction of the conserved 54-kD subunit (cpSRP54) with the chloroplast-specific cpSRP43 protein...
2016: PloS One
https://www.readbyqxmd.com/read/27847834/bleeding-zenker-s-diverticulum-ulcer-from-nonsteroidal-anti-inflammatory-drugs
#13
Tyler House, Patrick D Webb
No abstract text is available yet for this article.
August 2016: ACG Case Reports Journal
https://www.readbyqxmd.com/read/27785316/pharyngoesophageal-obstruction-on-the-killian-laimer-triangle-by-zenker-s-diverticulum-case-report-and-clinical-significance
#14
Tulio F Leite, Carlos A A Chagas, Lucas A S Pires, Rafael Cisne, Marcio A Babinski
Zenker's diverticulum is a form of esophageal and pharyngeal obstruction located at the Killian-Laimer triangle. It is relatively common in elderly man (seventh or eighth decade of life), and its pathophysiology is not completely understood, albeit theories regarding dysfunction of the upper esophageal sphincter were reported. The main symptoms are dysphagia and odynophagia, but it can complicate to aspiration and perforation of the pharyngeal pouch; also, it can be asymptomatic. Diagnosis is provided through a barium esophagogram...
December 2015: Gastroenterology Research
https://www.readbyqxmd.com/read/27762065/32-years-of-experience-with-co2-laser-assisted-treatment-for-zenker-s-diverticulum-an-update-of-227-patients-treated-in-kiel
#15
M Hoffmann, A Fazel, K-G Mews, P Ambrosch
OBJECTIVES: To underline the value of the microendoscopic CO2 -LASER-assisted treatment (MEDCO2 ) for Zenker's diverticulum by investigating a large patient cohort treated in a single medical centre. DESIGN: Retrospective cohort study of consecutive patients. SETTING: Department of Otorhinolaryngology, Head and Neck Surgery, Christian-Albrechts-University Kiel, Germany. PARTICIPANTS: A total of 227 patients with Zenker's diverticulum were treated by MEDCO2 , and the results were compared with those reported in the literature for the open transcervical approach (OTA) and the endoscopic staple-assisted oesophagodiverticulostomy (ESED)...
October 19, 2016: Clinical Otolaryngology
https://www.readbyqxmd.com/read/27684038/response-to-calgani-et-al
#16
Martin Zenker, Kerstin Kutsche
No abstract text is available yet for this article.
December 2016: Genetics in Medicine: Official Journal of the American College of Medical Genetics
https://www.readbyqxmd.com/read/27664512/submucosal-tunneling-endoscopic-septum-division-a-novel-technique-for-treating-zenker-s-diverticulum
#17
Quan-Lin Li, Wei-Feng Chen, Xiao-Cen Zhang, Ming-Yan Cai, Yi-Qun Zhang, Jian-Wei Hu, Meng-Jiang He, Li-Qing Yao, Ping-Hong Zhou, Mei-Dong Xu
No abstract text is available yet for this article.
December 2016: Gastroenterology
https://www.readbyqxmd.com/read/27636983/pharyngoesophageal-diverticuli-diagnosis-incidence-and-management
#18
Ryan E Little, Jonathan M Bock
PURPOSE OF REVIEW: Pharyngoesophageal diverticuli such as Zenker's diverticulum are relatively rare diseases that may have a significant impact on a patient's quality of life. Open surgical techniques have historically been the mainstay of treatment for Zenker's diverticuli and remain the preferred approach for many surgeons operating on Killian-Jamieson diverticuli (KJD) and pharyngoceles. However, advances in technology in recent decades have allowed for the development of successful endoscopic surgical techniques for the management of these conditions...
December 2016: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/27633923/human-pluripotent-stem-cell-derived-acinar-ductal-organoids-generate-human-pancreas-upon-orthotopic-transplantation-and-allow-disease-modelling
#19
Meike Hohwieler, Anett Illing, Patrick C Hermann, Tobias Mayer, Marianne Stockmann, Lukas Perkhofer, Tim Eiseler, Justin S Antony, Martin Müller, Susanne Renz, Chao-Chung Kuo, Qiong Lin, Matthias Sendler, Markus Breunig, Susanne M Kleiderman, André Lechel, Martin Zenker, Michael Leichsenring, Jonas Rosendahl, Martin Zenke, Bruno Sainz, Julia Mayerle, Ivan G Costa, Thomas Seufferlein, Michael Kormann, Martin Wagner, Stefan Liebau, Alexander Kleger
OBJECTIVE: The generation of acinar and ductal cells from human pluripotent stem cells (PSCs) is a poorly studied process, although various diseases arise from this compartment. DESIGN: We designed a straightforward approach to direct human PSCs towards pancreatic organoids resembling acinar and ductal progeny. RESULTS: Extensive phenotyping of the organoids not only shows the appropriate marker profile but also ultrastructural, global gene expression and functional hallmarks of the human pancreas in the dish...
September 15, 2016: Gut
https://www.readbyqxmd.com/read/27618351/are-there-alternatives-to-surgery-for-zenker-diverticulum
#20
Nitin Aggarwal, Prashanthi N Thota
No abstract text is available yet for this article.
September 2016: Cleveland Clinic Journal of Medicine
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