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https://www.readbyqxmd.com/read/28927039/an-unexpected-invasive-hydatidiform-mole-in-a-rudimentary-uterine-horn-a-case-report
#1
Manfei Si, Peng Li, Zeng Yuan, Hui Ma, Baoxia Cui, Beihua Kong
Rudimentary horns of the uterus develop as a result of a partial non-development of one Müllerian duct, a type of congenital uterine anomaly. Pregnancy in a rudimentary horn is uncommon and the outcome tends to be poor, with the majority of cases resulting in rupture between 10 and 15 gestational weeks, with significant risk of morbidity and mortality. Regardless of the availability of imagiological procedures and the advances being made in this field, the diagnosis of this type of ectopic pregnancy often only occurs during laparotomy or laparoscopy subsequent to abdominal pain and collapse...
September 2017: Oncology Letters
https://www.readbyqxmd.com/read/28926755/neochordoplasty-versus-leaflet-resection-for-ruptured-mitral-chordae-treatment-virtual-mitral-valve-repair
#2
Ahnryul Choi, David D McPherson, Hyunggun Kim
Degenerative mitral valve (MV) disease involving mitral prolapse is one of the most prevalent MV pathologies. Quadrangular leaflet resection and neochordoplasty demonstrate excellent clinical outcomes for the treatment of posterior leaflet prolapse. We evaluated the functional and biomechanical characteristics of a virtual pathologic MV model suffering from chordal rupture, performed virtual neochordoplasty and quadrangular leaflet resection, and compared the two post-repair MV functions. The pre-repair MV demonstrated severe posterior leaflet prolapse due to the ruptured P2 chordae and excessive stress concentration...
September 13, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28926379/tendon-length-calf-muscle-atrophy-and-strength-deficit-after-acute-achilles-tendon-rupture-long-term-follow-up-of-patients-in-a-previous-study
#3
Juuso Heikkinen, Iikka Lantto, Juuso Piilonen, Tapio Flinkkilä, Pasi Ohtonen, Pertti Siira, Vesa Laine, Jaakko Niinimäki, Ari Pajala, Juhana Leppilahti
BACKGROUND: In this prospective study, we used magnetic resonance imaging (MRI) to assess long-term Achilles tendon length, calf muscle volume, and muscle fatty degeneration after surgery for acute Achilles tendon rupture. METHODS: From 1998 to 2001, 60 patients at our center underwent surgery for acute Achilles tendon rupture followed by early functional postoperative rehabilitation. Fifty-five patients were reexamined after a minimum duration of follow-up of 13 years (mean, 14 years), and 52 of them were included in the present study...
September 20, 2017: Journal of Bone and Joint Surgery. American Volume
https://www.readbyqxmd.com/read/28924434/ruptured-retinal-arterial-macroaneurysm-secondary-to-toxoplasmic-kyrieleis-arteriolitis-a-case-report
#4
Natalie Huang, W Andrew Lee, Sean Rivera, Sandra R Montezuma
PURPOSE: The aim of this report was to describe multimodal ocular imaging findings in a patient who presented with a ruptured retinal arterial macroaneurysm (RAM) associated with toxoplasmic Kyrieleis arteriolitis. METHODS: We report the case of a 64-year-old man with a history of systemic hypertension and dense amblyopia of the left eye who presented with decreased vision and new floaters in the left eye. Color fundus photography, spectral-domain optical coherence tomography, fluorescein angiography, and indocyanine green angiography were used as diagnostic imaging tools...
May 2017: Case Reports in Ophthalmology
https://www.readbyqxmd.com/read/28924416/detection-of-pars-plana-rupture-by-ultrasound-biomicroscopy-after-cannula-dislodgement-during-cataract-wound-hydration
#5
Yoshihiro Yonekawa, Benjamin J Thomas, Laurie K Lau-Sickon, Bradley J Anderson, Alan J Ruby
Ultrasound biomicroscopy (UBM) is a valuable diagnostic modality for imaging anterior ocular structures. Its utility has been well studied in anterior segment, lenticular, and pars plicata pathologies. However, imaging of the pars plana has been seldom described. We present the case of a 66-year-old woman referred for vitreous hemorrhage after expulsive cannula dislodgement into the posterior segment during wound hydration at the end of cataract surgery. B-scan ultrasonography initially detected a very anterior abnormality, but the resolution was insufficient for accurate diagnosis...
2017: Digital Journal of Ophthalmology: DJO
https://www.readbyqxmd.com/read/28924358/ischiofemoral-impingement-assessment-of-mri-findings-and-their-reliability
#6
Ahmet Akça, Kadihan Yalçın Şafak, Ebru Dülger İliş, Zeki Taşdemir, Tamer Baysal
OBJECTIVE: To evaluate the Magnetic Resonance Imaging (MRI) findings and their validity in patients with ischiofemoral impingement syndrome (IFI) . METHODS: We retrospectively analyzed 55 hips. MRI findings of 30 hips were consistent with IFI syndrome. Twenty five hips had no MRI findings consistent with IFI syndrome. We compared the ischiofemoral space (IFS), quadratus femoris space (QFS), ischial angle (IA) and femoral neck angle (FNA) between the age and gender matched groups...
November 2016: Acta Ortopedica Brasileira
https://www.readbyqxmd.com/read/28924326/definitive-management-of-ruptured-cavernous-internal-carotid-artery-aneurysm
#7
Uday Bhanu Kovilapu, Vikas Rastogi, V R Sinha, Saikrishna Thalaru
No abstract text is available yet for this article.
April 2017: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/28924219/mesoscopic-model-for-dna-g-quadruplex-unfolding
#8
A E Bergues-Pupo, I Gutiérrez, J R Arias-Gonzalez, F Falo, A Fiasconaro
Genomes contain rare guanine-rich sequences capable of assembling into four-stranded helical structures, termed G-quadruplexes, with potential roles in gene regulation and chromosome stability. Their mechanical unfolding has only been reported to date by all-atom simulations, which cannot dissect the major physical interactions responsible for their cohesion. Here, we propose a mesoscopic model to describe both the mechanical and thermal stability of DNA G-quadruplexes, where each nucleotide of the structure, as well as each central cation located at the inner channel, is mapped onto a single bead...
September 18, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28924068/-endovascular-treatment-for-carotid-blowout-syndrome-after-radiation-for-esophageal-cancer-a-case-report
#9
Shigefumi Takahashi, Tomohiro Kawaguchi, Kuniyasu Niizuma, Atsuhiro Nakagawa, Miki Fujimura, Takenori Ogawa, Yukio Katori, Teiji Tominaga
Here, we discuss a case of carotid blowout syndrome successfully treated with endovascular parent artery occlusion. A 71-year-old woman underwent treatment for esophageal cancer resection, followed by 50-Gy radiotherapy, 19 years prior. Due to local recurrence, she underwent 66- and 72-Gy radiation treatments at 2 and 4 years after the initial treatment, respectively. Afterward, tracheostomy and enterostomy were performed. This time, she was transported to our emergency department because of acute eruptive bleeding from the tracheal tube...
September 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28923905/acute-coronary-syndromes-the-way-forward-from-mechanisms-to-precision-treatment
#10
REVIEW
Filippo Crea, Peter Libby
Well into the 21st century, we still triage acute myocardial infarction on the basis of the presence or absence of ST-segment elevation, a century-old technology. Meanwhile, we have learned a great deal about the pathophysiology and mechanisms of acute coronary syndromes (ACS) at the clinical, pathological, cellular, and molecular levels. Contemporary imaging studies have shed new light on the mechanisms of ACS. This review discusses these advances and their implications for clinical management of the ACS for the future...
September 19, 2017: Circulation
https://www.readbyqxmd.com/read/28923428/staged-stenting-with-or-without-additional-coils-after-conventional-initial-coiling-of-acute-ruptured-wide-neck-intracranial-aneurysms
#11
Zhengzhe Feng, Qiao Zuo, Pengfei Yang, Qiang Li, Rui Zhao, Bo Hong, Yi Xu, Qinghai Huang, Jianmin Liu
BACKGROUND: Stent-assisted coiling technique has been more and more adopted in the treatment of intracranial aneurysms, and has been shown to improve long-term angiographic results, however, the treatment is relatively contraindicated in acutely ruptured aneurysms for its ischemic and hemorrhagic complications. Staged stenting after conventional coiling has emerged as a potential treatment strategy for ruptured wide-neck aneurysms. This study assessed the safety and efficacy of coiling in the acute phase followed by delayed stenting for ruptured wide-neck intracranial aneurysms...
September 15, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28922888/end-to-side-and-end-to-end-double-in-situ-bypass-with-submilimeter-m4-branches-for-treatment-of-ruptured-mycotic-aneurysm-3-dimensional-operative-video
#12
Yahya Turan, Ulas Cikla, Abdulbaki Kozan, Mustafa K Baskaya
No abstract text is available yet for this article.
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28922886/intracranial-bypass-of-posterior-inferior-cerebellar-artery-aneurysms-indications-technical-aspects-and-clinical-outcomes
#13
David J Bonda, Mohamad Labib, Jeffrey M Katz, Rafael A Ortiz, David Chalif, Avi Setton, David J Langer, Amir R Dehdashti
BACKGROUND: For some posterior inferior cerebellar artery (PICA) aneurysms, there is no constructive endovascular or direct surgical clipping option. Intracranial bypass is an alternative to a deconstructive technique. OBJECTIVE: To evaluate the clinical features, surgical techniques, and outcome of PICA aneurysms treated with bypass and obliteration of the diseased segment. METHODS: Retrospective review of PICA aneurysms treated via intracranial bypass was performed...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28922877/use-of-a-polytetrafluoroethylene-coated-vascular-plug-for-focal-intracranial-parent-vessel-sacrifice-for-fusiform-aneurysm-treatment
#14
Andrew P Carlson, Mohammad Abbas, Patricia Hall, Christopher Taylor
BACKGROUND: Fusiform intracranial aneurysms are challenging due to the circumferential nature of the disease. Endovascular parent vessel sacrifice with coils may be a treatment option, but typically requires a long vessel segment to induce complete cessation of flow. OBJECTIVE:   We evaluate early clinical experience with the intracranial use of the microvascular plug (MVP; Medtronic, Dublin, Ireland) device and to compare to previous coil-only techniques for vertebral artery sacrifice for fusiform vertebral aneurysm...
October 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28922850/comparative-ultrastructural-and-stereological-analyses-of-unruptured-and-ruptured-saccular-intracranial-aneurysms
#15
Emine Korkmaz, Rachel Kleinloog, Bon H Verweij, Iris E Allijn, Liesbeth H P Hekking, Luca Regli, Gabriel J E Rinkel, Ynte M Ruigrok, Jan Andries Post
Insight into processes leading to rupture of intracranial aneurysms (IAs) may identify biomarkers for rupture or lead to management strategies reducing the risk of rupture. We characterized and quantified (ultra)structural differences between unruptured and ruptured aneurysmal walls. Six unruptured and 6 ruptured IA fundi were resected after microsurgical clipping and analyzed by correlative light microscopy for quantitative analysis (proportion of the vessel wall area) and transmission electron microscopy for qualitative ultrastructural analysis...
October 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28922408/the-role-of-the-pi3k-akt-signaling-pathway-in-the-developmental-competence-of-bovine-oocytes
#16
Gabriella Mamede Andrade, Juliano Coelho da Silveira, Claudia Perrini, Maite Del Collado, Samuel Gebremedhn, Dawit Tesfaye, Flávio Vieira Meirelles, Felipe Perecin
The ovarian follicle encloses oocytes in a microenvironment throughout their growth and acquisition of competence. Evidence suggests a dynamic interplay among follicular cells and oocytes, since they are constantly exchanging "messages". We dissected bovine ovarian follicles and recovered follicular cells (FCs-granulosa and cumulus cells) and cumulus-oocyte complexes (COCs) to investigate whether the PI3K-Akt signaling pathway impacted oocyte quality. Following follicle rupture, COCs were individually selected for in vitro cultures to track the follicular cells based on oocyte competence to reach the blastocyst stage after parthenogenetic activation...
2017: PloS One
https://www.readbyqxmd.com/read/28921914/comparison-of-relation-between-multiple-parameters-of-glycemic-variability-and-coronary-plaque-vulnerability-assessed-by-virtual-histology-intravascular-ultrasound
#17
Natsu Otowa-Suematsu, Kazuhiko Sakaguchi, Hisako Komada, Tomoaki Nakamura, Anna Sou, Yushi Hirota, Masaru Kuroda, Toshiro Shinke, Ken-Ich Hirata, Wataru Ogawa
AIMS/INTRODUCTION: Increased glycemic variability is an important contributing factor to coronary artery disease. Although various parameters of glycemic variability can be derived by continuous glucose monitoring, the clinical relevance of individual parameters has remained unclear. We have now analyzed the relation of such parameters to coronary plaque vulnerability MATERIALS AND METHODS: The standard deviation of glucose levels (SD glucose), mean amplitude of glycemic excursions (MAGE), continuous overlapping net glycemic action calculated every 1 h (CONGA-1), and mean of daily differences (MODD) were calculated from continuous glucose monitoring data for 53 subjects hospitalized for percutaneous coronary intervention...
September 16, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28920704/endothelial-to-mesenchymal-transition-a-potential-mechanism-for-atherosclerosis-plaque-progression-and-destabilization
#18
Afang Li, Wenxi Peng, Xiaodan Xia, Rongqing Li, Yu Wang, Dangheng Wei
Endothelial-to-mesenchymal transition (EndMT) is a cellular reprogramming mechanism by which endothelial cells acquire a mesenchymal phenotype. EndMT is associated with fibroproliferative diseases, such as cancer progression and metastasis and cardiac and kidney fibrosis, and this condition has been extensively investigated over the past decade. Recently, studies showed that EndMT contributes to the initiation and progression of atherosclerotic lesion and plaque destabilization. Unstable atherosclerotic plaque rupture and subsequent thrombosis are the main pathological causes of acute cardiovascular events...
September 18, 2017: DNA and Cell Biology
https://www.readbyqxmd.com/read/28920634/outcomes-analysis-of-stent-graft-repair-for-thoracic-aorta-emergencies
#19
Mourad Boufi, Florent Vernet, Bianca Dona, Olivier Hartung, Anderson D Loundou, Martine Haccoun, Marc Leone, Yves S Alimi
BACKGROUND: This study aimed to identify patient, pathology and procedure-related factors affecting perioperative and mid-term mortality of thoracic aorta emergencies. METHODS: Between 2007 and 2014, patients treated emergently with thoracic stent-graft were retrospectively reviewed. Variables analyzed were: age, renal insufficiency, shock, cardiac arrest, transfer status, pathology, debranching procedures, operation duration, vascular access and European System for Cardiac Operative Risk Evaluation (EuroSCORE)...
December 2017: Journal of Cardiovascular Surgery
https://www.readbyqxmd.com/read/28920607/tuning-the-electronic-environment-of-zinc-ions-with-a-ligand-for-dendrite-free-zinc-deposition-in-an-ionic-liquid
#20
Zhen Liu, Guozhu Li, Tong Cui, Abhishek Lahiri, Andriy Borodin, Frank Endres
In this work, we report on the influence of an organic ligand on the electrodeposition of Zn from an ionic liquid (IL) electrolyte. Zinc oxide was first dissolved in a protic IL. By introducing a 2-methylimidazole (2-MIm) ligand, the electronic environment of zinc ions, Zn(ii) complexes and the structure of the IL are considerably altered, as verified by both X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy. Due to the electron donation effect of the ligand, the zinc ions become less positively charged and exhibit a lower binding energy by -0...
September 18, 2017: Physical Chemistry Chemical Physics: PCCP
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