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https://www.readbyqxmd.com/read/28238923/outcome-after-endovascular-repair-of-subacute-type-b-aortic-dissection-a-combined-series-from-two-greek-centers
#1
Nikolaos Asaloumidis, Christos D Karkos, Georgios Trellopoulos, Konstantinos Konstantinidis, Ioakeim T Giagtzidis, Thomas E Kalogirou, Konstantinos O Papazoglou
AIM: To document the outcome following endovascular treatment of subacute type B aortic dissection (AD). METHODS: Between October 2000 and June 2014, 40 patients (33 men, mean age 65 [range 35-87] years) with type B AD underwent thoracic endovascular aortic repair (TEVAR) during the subacute phase (defined as 15-90 days from the onset of symptoms). Indications for intervention were acute aortic enlargement, resistant hypertension and/or intractable pain. The primary outcome was survival...
February 23, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28237114/monitoring-autophagic-responses-in-caenorhabditis-elegans
#2
M E Papandreou, N Tavernarakis
Autophagy, from the Greek auto (self) and phagy (eating), is a self-degradative process critical for eukaryotic cell homeostasis. Its rapidly responsive, highly dynamic nature renders this process essential for adapting to and offsetting acute/harsh conditions such as starvation, organelle dysfunction, and deoxyribonucleic acid (DNA) damage. Autophagy involves an intricate network of interacting factors with multiple levels of control. Importantly, dysregulation of autophagy has been linked to numerous debilitating pathologies, including cancer and neurodegenerative conditions in humans...
2017: Methods in Enzymology
https://www.readbyqxmd.com/read/28236916/risk-factors-for-stent-graft-induced-new-entry-after-thoracic-endovascular-aortic-repair-for-stanford-type-b%C3%A2-aortic-dissection
#3
Hyunsik Jang, Man-Deuk Kim, Gyoung Min Kim, Jong Yun Won, Young-Guk Ko, Donghoon Choi, Hyun-Chul Joo, Do Yun Lee
OBJECTIVE: Stent graft-induced new entry (SINE) has been increasingly observed after thoracic endovascular aortic repair (TEVAR) for Stanford type B aortic dissection. SINE is often life threatening, and reintervention is required. This study investigated risk factors for SINE after TEVAR. METHODS: From July 2001 to June 2013, we retrospectively analyzed data from 79 patients who underwent TEVAR for Stanford type B aortic dissection. TEVAR was performed in 17 patients ≤2 weeks (acute) after the diagnosis of aortic dissection and in the remaining 62 patients >2 weeks (chronic) after diagnosis...
March 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28235790/short-term-regular-aerobic-exercise-reduces-oxidative-stress-produced-by-acute-high-intraluminal-pressure-in-the-adipose-microvasculature
#4
Austin T Robinson, Ibra S Fancher, Varadarajan Sudhahar, Jing Tan Bian, Marc Cook, Abeer M Mahmoud, Mohamed Ali, Masuko Ushio-Fukai, Michael D Brown, Tohru Fukai, Shane A Phillips
: High blood pressure has been shown to elicit impaired dilation in the vasculature. The purpose of this investigation was to elucidate the mechanisms through which high pressure may elicit vascular dysfunction, and determine the mechanisms through which regular aerobic exercise protects arteries against high pressure. METHODS: Male C57Bl6 mice were subjected to two weeks of voluntary running (~ 6km/day) for comparison to sedentary controls. Hind limb adipose resistance arteries were dissected from mice for measurement of flow-induced dilation (FID; with or without high intraluminal pressure exposure); or protein expression of NADPH oxidase II (NOX II) and superoxide dismutase (SOD)...
February 24, 2017: American Journal of Physiology. Heart and Circulatory Physiology
https://www.readbyqxmd.com/read/28231406/fungal-adaptation-to-contemporary-fungicide-applications-the-case-of-botrytis-cinerea-populations-from-champagne-vineyards-france
#5
A-S Walker, V Ravigne, A Rieux, S Ali, F Carpentier, E Fournier
In addition to being one of the most acute problems impeding chemical control of fungal diseases, the evolution of fungicide resistance is an emblematic case of local adaptation to spatially heterogeneous and temporally variable selection pressures. Here we dissected the adaptation of Botrytis cinerea (the causal agent of grey mould) populations on grapes to several fungicides. We carried out a two-year survey (four collection dates) on three treated/untreated pairs of plots from vineyards in Champagne (France), and monitored the frequency of four resistant phenotypes that are unambiguously associated to four distinct genotypes...
February 23, 2017: Molecular Ecology
https://www.readbyqxmd.com/read/28220523/inflammation-is-independent-of-steatosis-in-a-murine-model-of-steatohepatitis
#6
Wei Wang, Ming-Jiang Xu, Yan Cai, Zhou Zhou, Haixia Cao, Partha Mukhopadhyay, Pal Pacher, Shusen Zheng, Frank J Gonzalez, Bin Gao
Obesity and alcohol consumption synergistically promote steatohepatitis, and neutrophil infiltration is believed to be associated with steatosis. However, the underlying mechanisms remain obscure. Peroxisome proliferator-activated receptor-gamma (PPARγ) plays a complex role in lipid metabolism and inflammation, therefore, the purpose of this study was to dissect its role in regulating steatosis and neutrophil infiltration in a clinically relevant mouse steatohepatitis model of 3-month high-fat diet (HFD) feeding plus a binge of ethanol (HFD -plus-binge ethanol)...
February 21, 2017: Hepatology: Official Journal of the American Association for the Study of Liver Diseases
https://www.readbyqxmd.com/read/28220035/case-report-modified-laparoscopic-subtotal-cholecystectomy-an-alternative-approach-to-the-difficult-gallbladder
#7
Michael S Segal, Richard H Huynh, George O Wright
BACKGROUND Laparoscopic cholecystectomy is a commonly performed surgical procedure. In certain situations visualization of the Callot triangle can become difficult due to inflammation, adhesions, and sclerosing of the anatomy. Without being able to obtain the "critical view of safety" (CVS), there is increased risk of damage to vital structures. An alternative approach to the conventional conversion to an open cholecystectomy (OC) would be a laparoscopic subtotal cholecystectomy (LSC). CASE REPORT We present a case of a 56-year-old male patient with acute cholecystitis with a "difficult gallbladder" managed with LSC...
February 21, 2017: American Journal of Case Reports
https://www.readbyqxmd.com/read/28219577/method-of-hemorrhage-control-from-the-aorta-after-repair-of-a-dissected-aortic-aneurysm
#8
Joseph Galea, Alexander Manché
Patients with Marfan syndrome and presenting with acute aortic dissection have fragile aorta, causing bleeding problems in the anastomosis between the graft and the aorta. Hemostatic impairment following circulatory arrest and prolonged cardiopulmonary bypass contribute to these problems. We describe a technique to control persistent bleeding from the anastomosis in the aortopulmonary recess using two kissing inflated balloons at the tip of two Foley catheters to tamponade the bleeding sites.
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28219551/concomitant-endografting-of-a%C3%A2-type-b-aortic-dissection-during-transfemoral-aortic-valve-replacement
#9
Arman Kilic, Mary A Siki, Wilson Y Szeto, Joseph E Bavaria, Saif Anwaruddin, Nimesh D Desai
An 87-year-old woman with severe aortic stenosis underwent a transfemoral transcatheter aortic valve replacement (TAVR). Intraoperative transesophageal echocardiography demonstrated a well-seated valve with no paravalvular leak; however, a new acute type B aortic dissection was identified. Endografts were delivered through the TAVR sheath and deployed, effectively treating the dissection. The patient did well postoperatively, with imaging at 2 years demonstrating a well-functioning aortic valve and no migration or endoleak of the thoracic endografts...
March 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28217690/iatrogenic-acute-ascending-aortic-dissection-with-intramural-hematoma-during-coronary-artery-stenting-a-case-report
#10
Mohamad El-Haress, Hicham Daadaa, Shima Shahjouei, Firas El-Bitar, Hisham Bahmad
BACKGROUND: Iatrogenic acute ascending aortic dissection during percutaneous coronary intervention (PCI) is an exceptionally rare and life-threatening sequel that requires early and accurate diagnosis along with rapid management. No guidelines have yet been established to direct decisions on the different treatment options that can be employed in the setting of acute aortic dissections caused by PCI. However, similar cases have been treated either by intracoronary stenting and conservative management as in localized aortocoronary dissections or by surgical intervention in cases of extensive aortic dissections...
2017: Frontiers in Surgery
https://www.readbyqxmd.com/read/28217371/pathogenic-mechanisms-of-pancreatitis
#11
REVIEW
Murli Manohar, Alok Kumar Verma, Sathisha Upparahalli Venkateshaiah, Nathan L Sanders, Anil Mishra
Pancreatitis is inflammation of pancreas and caused by a number of factors including pancreatic duct obstruction, alcoholism, and mutation in the cationic trypsinogen gene. Pancreatitis is represented as acute pancreatitis with acute inflammatory responses and; chronic pancreatitis characterized by marked stroma formation with a high number of infiltrating granulocytes (such as neutrophils, eosinophils), monocytes, macrophages and pancreatic stellate cells (PSCs). These inflammatory cells are known to play a central role in initiating and promoting inflammation including pancreatic fibrosis, i...
February 6, 2017: World Journal of Gastrointestinal Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28216358/outcomes-of-thoracic-endovascular-aortic-repair-using-aortic-arch-chimney-stents-in-high-risk-patients
#12
Igor Voskresensky, Salvatore T Scali, Robert J Feezor, Javairiah Fatima, Kristina A Giles, Rosamaria Tricarico, Scott A Berceli, Adam W Beck
BACKGROUND: Aortic arch disease is a challenging clinical problem, especially in high-risk patients, in whom open repair can have morbidity and mortality rates of 30% to 40% and 2% to 20%, respectively. Aortic arch chimney (AAC) stents used during thoracic endovascular aortic repair (TEVAR) are a less invasive treatment strategy than open repair, but the current literature is inconclusive about the role of this technology. The focus of this analysis is on our experience with TEVAR and AAC stents...
February 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28216355/innovative-postmarket-device-evaluation-using-a-quality-registry-to-monitor-thoracic-endovascular-aortic-repair-in-the-treatment-of-aortic-dissection
#13
Adam W Beck, Joseph V Lombardi, Dorothy B Abel, J Pablo Morales, Danica Marinac-Dabic, Grace Wang, Ali Azizzadeh, John Kern, Mark Fillinger, Rodney White, Jack L Cronenwett, Richard P Cambria
OBJECTIVE: United States Food and Drug Administration (FDA)-mandated postapproval studies have long been a mainstay of the continued evaluation of high-risk medical devices after initial marketing approval; however, these studies often present challenges related to patient/physician recruitment and retention. Retrospective single-center studies also do not fully represent the spectrum of real-world performance nor are they likely to have a sufficiently large enough sample size to detect important signals...
February 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28216353/left-subclavian-artery-revascularization-in-zone-2-thoracic-endovascular-aortic-repair-is-associated-with-lower-stroke-risk-across-all-aortic-diseases
#14
Rhiannon J Bradshaw, S Sadie Ahanchi, Obie Powell, Sebastian Larion, Colin Brandt, Michael C Soult, Jean M Panneton
BACKGROUND: The best management strategy for the left subclavian artery (LSA) in pathologic processes of the aorta requiring zone 2 thoracic endovascular aortic repair (TEVAR) remains controversial. We compared LSA coverage with or without revascularization as well as the different means of LSA revascularization. METHODS: A retrospective chart review was conducted of patients with any aortic diseases who underwent zone 2 TEVAR deployment from 2007 to 2014. Primary end points included 30-day stroke and 30-day spinal cord injury (SCI)...
February 16, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28212053/transthoracic-echocardiography-pitfalls-and-limitations-as-delineated-at-cardiac-ct-and-mr-imaging
#15
Sachin B Malik, Natalie Chen, Rex A Parker, Joe Y Hsu
Transthoracic echocardiography ( TTE transthoracic echocardiography ) is a critical tool in the field of clinical cardiology. It often serves as one of the first-line imaging modalities in the evaluation of cardiac disease owing to its low cost, portability, widespread availability, lack of ionizing radiation, and ability to evaluate both anatomy and function of the heart. Consequently, a large majority of patients undergoing a cardiac computed tomography (CT) or magnetic resonance (MR) imaging examination will have a TTE transthoracic echocardiography available for review...
February 17, 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28211524/epigenetic-and-genetic-dissections-of-uv-induced-global-gene-dysregulation-in-skin-cells-through-multi-omics-analyses
#16
Yao Shen, Milda Stanislauskas, Gen Li, Deyou Zheng, Liang Liu
To elucidate the complex molecular mechanisms underlying the adverse effects UV radiation (UVR) on skin homeostasis, we performed multi-omics studies to characterize UV-induced genetic and epigenetic changes. Human keratinocytes from a single donor treated with or without UVR were analyzed by RNA-seq, exome-seq, and H3K27ac ChIP-seq at 4 h and 72 h following UVR. Compared to the relatively moderate mutagenic effects of UVR, acute UV exposure induced substantial epigenomic and transcriptomic alterations, illuminating a previously underappreciated role of epigenomic and transcriptomic instability in skin pathogenesis...
February 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28202062/isolated-igg4-related-sclerosing-cholangitis-misdiagnosed-as-malignancy-in-an-area-with-endemic-cholangiocarcinoma-a-case-report
#17
Narongsak Rungsakulkij, Pattana Sornmayura, Penampai Tannaphai
BACKGROUND: The most common cause of perihilar obstruction is cholangiocarcinoma, especially in Thailand. Benign perihilar stricture represents less than 20% of cases. IgG4-related disease and IgG4-related sclerosing cholangitis, however, have been receiving increased recognition. Isolated IgG4-related sclerosing cholangitis is less common. The preoperative diagnosis of IgG4-related sclerosing cholangitis without pancreatic involvement is very difficult because the clinical presentation and preoperative evaluation are extremely difficult to distinguish from perihilar cholangiocarcinoma...
February 15, 2017: BMC Surgery
https://www.readbyqxmd.com/read/28197773/change-in-tongue-pressure-in-patients-with-head-and-neck-cancer-after-surgical-resection
#18
Yoko Hasegawa, Kazuma Sugahara, Tatsuyuki Fukuoka, Shota Saito, Ayumi Sakuramoto, Nobuhide Horii, Saori Sano, Kana Hasegawa, Yuta Nakao, Tomoki Nanto, Kanenori Kadoi, Kuniyasu Moridera, Kazuma Noguchi, Kazuhisa Domen, Hiromitsu Kishimoto
Tongue pressure is reportedly associated with dysphagia. This study investigated relationships among characteristics of head and neck cancer, tongue pressure and dysphagia screening tests performed in patients with head and neck cancer during the acute phase after surgical resection. Fifty-seven patients (36 men, 21 women; age range 26-95 years) underwent surgical resection and dysphagia screening tests (Repetitive Saliva Swallowing Test, Water Swallowing Test, Modified Water Swallowing Test and Food Test) and pre- and postoperative measurement of tongue pressure at 5 time points (preoperatively, and 1-2 weeks and 1, 2, and 3 months postoperatively)...
February 14, 2017: Odontology
https://www.readbyqxmd.com/read/28188322/tennis-ball-sign-a-ct-sign-of-acute-aortic-dissection
#19
REVIEW
Hira Lal, Priyank Yadav, Anand Chellappan, Rajeev Singh
No abstract text is available yet for this article.
February 10, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/28185383/spontaneous-coronary-artery-dissection-and-takotsubo-syndrome-the-chicken-or-the-egg-causality-dilemma
#20
Shams Y-Hassan, Raquel Themudo, Eva Maret
Acute coronary syndrome (ACS) including spontaneous coronary artery dissection (SCAD) has been reported to trigger its own clinical twin takotsubo syndrome (TS). The pathogenetic association between SCAD and TS remains to be elucidated. The two diseases afflict predominantly women and both conditions may be triggered by an emotional stress factor and an unusual extreme physical exercise. Herein, we describe a case of 54-year-old woman presenting with ACS caused by an obtuso-marginal SCAD. Concurrently, the patient had typical clinical features and course of mid-apical pattern of TS...
February 10, 2017: Catheterization and Cardiovascular Interventions
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