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https://www.readbyqxmd.com/read/28936922/intraluminal-spindle-shaped-head-suture-induced-occlusion-of-middle-cerebral-artery-in-the-rats
#1
Ye Wu, Lan Hu, Xiaosheng Yang, Xuhui Wang, Liang Wan, Xuming Hua, Juan Cheng, Yi Li
OBJECTIVE: This study aimed to introduce a modified animal model of middle cerebral arterial occlusion (MCAO) through placement of intraluminal spindle-shaped head suture by comparing the traditional MCAO model. METHODS: A total of 60 male Spraque-Dawley (SD) rats were divided into two groups and MCAO was induced using spindle-shaped head suture or round head suture. The mortality, infarct volume, neurological function, success rate of the surgery, and stability of modeling were examined to evaluate the effectiveness of this model...
September 22, 2017: Neurological Research
https://www.readbyqxmd.com/read/28927208/observation-of-neointimal-coverage-around-the-aneurysm-neck-after-stent-assisted-coil-embolization-by-optical-frequency-domain-imaging-technical-case-report
#2
Rie Yako, Hiroyuki Matsumoto, Osamu Masuo, Naoyuki Nakao
BACKGROUND AND IMPORTANCE: Stent-assisted coil embolization has been established as a treatment option for wide-necked or complex aneurysms. However, concerns have been raised about the incidence of thromboembolic complications, which is higher for coil embolization without stent assistance. Long-term antiplatelet therapy is necessary to prevent acute or delayed ischemic events potentially associated with incomplete stent apposition after treatment with stent-assisted coil embolization...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28917072/primary-extraskeletal-mesenchymal-chondrosarcoma-arising-from-the-iliac-vein
#3
Hua Zhang, Shuai Wang, Zhihua Cheng, Han Liu
The iliac vein is an extremely rare site for mesenchymal chondrosarcoma, and patients with primary extraskeletal mesenchymal chondrosarcoma arising from a vein always suffer a very poor prognosis. We report a case of a 45-year-old female who presented with a 5-month history of left leg edema in 2015. Contrast-enhanced computed tomography showed a large mass in the left iliac vein with scattered calcifications. Wide-margin resection was performed, and histopathologic and immunohistochemical analyses confirmed the presence of intraluminal mesenchymal chondrosarcoma with local invasion out of the vein wall...
October 2017: Saudi Medical Journal
https://www.readbyqxmd.com/read/28914135/hemodynamic-and-anatomic-predictors-of-renovisceral-stent-graft-occlusion-following-chimney-endovascular-repair-of-juxtarenal-aortic-aneurysms
#4
Rosamaria Tricarico, Yong He, Liza Laquian, Salvatore T Scali, Roger Tran-Son-Tay, Adam W Beck, Scott A Berceli
PURPOSE: To identify anatomic and hemodynamic changes associated with impending visceral chimney stent-graft occlusion after endovascular aneurysm repair (EVAR) with the chimney technique (chEVAR). METHODS: A retrospective evaluation was performed of computed tomography scans from 41 patients who underwent juxtarenal chEVAR from 2008 to 2012 to identify stent-grafts demonstrating conformational changes following initial placement. Six subjects (mean age 74 years; 3 men) were selected for detailed reconstruction and computational hemodynamic analysis; 4 had at least 1 occluded chimney stent-graft...
September 1, 2017: Journal of Endovascular Therapy
https://www.readbyqxmd.com/read/28912363/tgf%C3%AE-transforming-growth-factor-%C3%AE-blockade-induces-a-human-like-disease-in-a-nondissecting-mouse-model-of-abdominal-aortic-aneurysm
#5
Fabien Lareyre, Marc Clément, Juliette Raffort, Stefanie Pohlod, Meghana Patel, Bruno Esposito, Leanne Master, Alison Finigan, Marie Vandestienne, Nikolaos Stergiopulos, Soraya Taleb, Bram Trachet, Ziad Mallat
OBJECTIVE: Current experimental models of abdominal aortic aneurysm (AAA) do not accurately reproduce the major features of human AAA. We hypothesized that blockade of TGFβ (transforming growth factor-β) activity-a guardian of vascular integrity and immune homeostasis-would impair vascular healing in models of nondissecting AAA and would lead to sustained aneurysmal growth until rupture. APPROACH AND RESULTS: Here, we test this hypothesis in the elastase-induced AAA model in mice...
September 14, 2017: Arteriosclerosis, Thrombosis, and Vascular Biology
https://www.readbyqxmd.com/read/28906377/reflux-episodes-and-esophageal-impedance-levels-in-patients-with-typical-and-atypical-symptoms-of-gastroesophageal-reflux-disease
#6
Bi Xing Ye, Liu Qin Jiang, Lin Lin, Ying Wang, Meifeng Wang
To determine the relationship between baseline impedance levels and gastroesophageal reflux, we retrospectively enrolled 110 patients (54 men and 56 female; mean age, 51 ± 14 years) with suspected gastroesophageal reflux disease (GERD) who underwent 24-h multichannel intraluminal impedance and pH monitoring. Patients were stratified according to symptom (typical or atypical) and reflux types (acid reflux, nonacid reflux [NAR], or no abnormal reflux). Mean nocturnal baseline impedance (MNBI) were measured 3 cm (distal esophagus) and 17 cm (proximal esophagus) above the lower esophageal sphincter...
September 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28901635/investigation-and-management-of-gastro-oesophageal-reflux-in-united-kingdom-neonatal-intensive-care-units
#7
Thomas Rossor, Gwendolyn Andradi, Ravindra Bhat, Anne Greenough
AIM: In 2004 wide variation in the investigation and management of gastro-oesophageal reflux (GOR) of infants on UK major neonatal units was demonstrated. Our aim was to re-survey neonatal practitioners to determine current practice and whether it was now evidence based. METHODS: A questionnaire was sent to all 207 UK neonatal units. RESULTS: Responses were obtained from 84% of units. The most frequent "investigation" was a trial of therapy (83% of units); pH studies were used in 38%, upper GI contrast studies in 19% and multichannel intraluminal impedance (MII)/pH studies in 5%...
September 13, 2017: Acta Paediatrica
https://www.readbyqxmd.com/read/28899569/on-the-influence-of-wall-calcification-and-intraluminal-thrombus-on-prediction-of-abdominal-aortic-aneurysm-rupture
#8
Hilary E Barrett, Eoghan M Cunnane, Hena Hidayat, Julie M O'Brien, Michael A Moloney, Eamon G Kavanagh, Michael T Walsh
OBJECTIVE: Parameters other than maximum diameter that predict rupture of abdominal aortic aneurysms (AAAs) may be helpful for risk-benefit analysis in individual patients. The aim of this study was to characterize the biomechanical-structural characteristics associated with AAA walls to better identify the related mechanistic variables required for an accurate prediction of rupture risk. METHODS: Anterior AAA wall (n = 40) and intraluminal thrombus (ILT; n = 114) samples were acquired from 18 patients undergoing open surgical repair...
September 9, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28893576/isolated-internal-carotid-artery-thrombus-and-cerebral-infarction-in-a-patient-with-necrotizing-pancreatitis-case-report
#9
Daniel R Ludwig, Matthew J Austin, Adam N Wallace, Mudassar Kamran, Akash P Kansagra, Joshua W Osbun, DeWitte T Cross, Christopher J Moran
Isolated internal carotid artery (ICA) thrombus in the absence of underlying atherosclerotic disease is a rare entity. We report a case of a patient presenting with right arm weakness, slurred speech, and altered mental status in the setting of acute on chronic pancreatitis. The patient was found to have scattered left cerebral hemisphere cortical infarctions, and catheter angiography confirmed the presence of intraluminal left ICA thrombus, with no evidence of atherosclerotic disease in the cervical or intracranial vasculature...
September 8, 2017: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/28893026/superior-vena-cava-as-gateway-to-heart-metastatic-breast-carcinoma-causing-ball-in-a-loop-metastasis-to-right-atrium
#10
Harpreet Singh Sandhu, Sampath Kumar Mahadevappa Mahendrakar, Sulaiman Sadruddin Ladhani, Azizullah Hafizullah Khan, Yunus Shafi Loya
Breast carcinoma is the most common invasive cancer in women worldwide. It metastasizes commonly to bone, lungs, regional lymph nodes and brain. Cardiac metastasis of lung and breast cancers is a known but rare complication of advanced disease with tumour metastasising to pericardium via the locoregional lymphatic system. Here we present a case of 59-year-old female presenting with right upper limb oedema, facial puffiness and features of Superior Vena Cava (SVC) syndrome 15 years after mastectomy and adjuvant chemotherapy, radiotherapy for carcinoma of the right breast...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28892998/role-of-multi-detector-ct-mdct-in-evaluation-of-bowel-diseases
#11
Mohamad Tufail Sheikh, Mohd Tafazul Sheikh, Masrat Jan, Hayat A Khan, Guru P Vashisht, Mohd L Wani
INTRODUCTION: Multi-Detector Computed Tomography (MDCT) has revealed excellent results in various systems of the body. Its role in abdominal imaging for solid viscera has been proved beyond doubt. It is an emerging non invasive tool for evaluation of bowel diseases. AIM: To see the efficacy of MDCT in evaluation of various bowel diseases. MATERIALS AND METHODS: The study was carried out in the Department of Radiodiagnosis and Imaging, Batra Hospital and Medical Research Centre, Delhi, India...
July 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28887252/correlation-of-intraluminal-thrombus-deposition-biomechanics-and-hemodynamics-with-surface-growth-and-rupture-in-abdominal-aortic-aneurysm-application-in-a-clinical-paradigm
#12
Eleni Metaxa, Konstantinos Tzirakis, Nikolaos Kontopodis, Christos V Ioannou, Yannis Papaharilaou
BACKGROUND: The natural history of abdominal aortic aneurysm (AAA) can be investigated through longitudinal evaluation of localized aneurysm characteristics exploiting clinical images. The major challenge is to identify corresponding regions between follow-ups. We have recently developed an algorithm (VascForm) based on non-rigid registration that can obtainsurface correspondence, and quantify surface growth distribution. METHODS: A ruptured AAA with an initial computed tomography scan 2 years ago, was studied...
September 5, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28886156/loss-of-sprr3-in-apoe-mice-leads-to-atheroma-vulnerability-through-akt-dependent-and-independent-effects-in-vsmcs
#13
Caressa D Lietman, Amanda K Segedy, Bin Li, Sergio Fazio, James B Atkinson, MacRae F Linton, Pampee P Young
Vascular smooth muscle cells (VSMCs) represent important modulators of plaque stability in advanced lesions. We previously reported that loss of small proline-rich repeat protein 3 (Sprr3), leads to VSMC apoptosis in a PI3K/Akt-dependent manner and accelerates lesion progression. Here, we investigated the role of Sprr3 in modulating plaque stability in hyperlipidemic ApoE-/- mice. We show that loss of Sprr3 increased necrotic core size and reduced cap collagen content of atheromas in brachiocephalic arteries with evidence of plaque rupture and development of intraluminal thrombi...
2017: PloS One
https://www.readbyqxmd.com/read/28881903/safety-and-efficacy-of-endoscopic-spray-cryotherapy-for-esophageal-cancer
#14
F C Tsai, S Ghorbani, B D Greenwald, S Jang, J A Dumot, M J McKinley, N J Shaheen, F Habr, H C Wolfsen, J A Abrams, C J Lightdale, N S Nishioka, M H Johnston, A Zfass, W J Coyle
Although surgery is traditionally the standard of care for esophageal cancer, esophagectomy carries significant morbidity. Alternative endoscopic therapies are needed for patients who are not candidates for conventional treatment. The objective of this study is to assess the safety, efficacy, and tolerability of spray cryotherapy of esophageal adenocarcinoma. This study includes patients with esophageal adenocarcinoma who had failed or were not candidates for conventional therapy enrolled retrospectively and prospectively in an open-label registry and patients in a retrospective cohort from 11 academic and community practices...
November 1, 2017: Diseases of the Esophagus: Official Journal of the International Society for Diseases of the Esophagus
https://www.readbyqxmd.com/read/28880273/tailored-therapy-guided-by-multichannel-intraluminal-impedance-ph-monitoring-for-refractory-non-erosive-reflux-disease
#15
Nunzio Ranaldo, Giuseppe Losurdo, Andrea Iannone, Mariabeatrice Principi, Michele Barone, Massimo De Carne, Enzo Ierardi, Alfredo Di Leo
A relevant percentage of non-erosive reflux disease (NERD) is refractory to proton pump inhibitors (PPIs) treatment. Multichannel intraluminal impedance pH (MII-pH) monitoring should give useful pathophysiological information about refractoriness. Therefore, our aim was to assess whether this technique could be useful to guide a 'tailored' therapy in refractory NERD. We retrospectively recruited NERD patients undergoing MII-pH monitoring for unsuccessful treatment. All patients had undergone upper endoscopy, and those with erosive esophagitis were excluded...
September 7, 2017: Cell Death & Disease
https://www.readbyqxmd.com/read/28878855/incidentally-detected-small-intestine-intussusception-caused-by-primary-small-intestine-carcinoma-on-18-f-fdg-pet-ct
#16
Hyunjong Lee, So Won Oh, Yu Kyeong Kim
Small intestine intussusception in adults is a rare condition mainly caused by primary or metastatic small intestine malignancy. Here, we present a 72-year-old male patient who was diagnosed with small intestine cancer that was presented as small intestine intussusception on hybrid (18)F-fluorodeoxyglucose positron emission tomography/computed tomography (FDG PET/CT). The patient was initially referred for an abnormality on a chest radiography and severe anemia. FDG PET/CT showed the lung lesion in the right upper lobe of lung as a high FDG uptake mass...
September 2017: Nuclear Medicine and Molecular Imaging
https://www.readbyqxmd.com/read/28878075/the-characterization-of-the-quasi-enveloped-hepatitis-e-virus-particles-released-by-the-cellular-exosomal-pathway
#17
Shigeo Nagashima, Masaharu Takahashi, Tominari Kobayashi, Tanggis, Tsutomu Nishizawa, Takashi Nishiyama, Putu Prathiwi Primadharsini, Hiroaki Okamoto
Our previous studies demonstrated that membrane-associated hepatitis E virus (HEV) particles-now considered "quasi-enveloped particles"-are present in the multivesicular body with intraluminal vesicles (exosomes) in infected cells, and that the release of HEV virions is related to the exosomal pathway. In this study, we characterized exosomes purified from culture supernatant of HEV-infected PLC/PRF/5 cells. Purified CD63-, CD9-, or CD81-positive exosomes derived from the culture supernatant of HEV-infected cells that had been cultivated in serum-free medium were found to contain HEV RNA and the viral capsid (ORF2) and ORF3 proteins, as determined by a RT-PCR and Western blotting, respectively...
September 6, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28876619/do-iatrogenic-serosal-injuries-result-in-small-bowel-perforation-in-a-rabbit-model
#18
M C Tsai, G Candy, M A Costello, A D Grieve, M Brand
BACKGROUND: Surgical dogma dictates that serosal injuries should be repaired during laparotomy as these injuries may result in localised areas of bowel ischaemia and may perforate. No study has investigated whether there is a correlation between the extent of serosal injuries and the risk for perforation under normal physiological conditions. We hypothesized that small bowel serosal injuries do not result in early or late perforation at physiological intraluminal pressures regardless of their size...
June 2017: South African Journal of Surgery. Suid-Afrikaanse Tydskrif Vir Chirurgie
https://www.readbyqxmd.com/read/28876576/rapunzel-syndrome-african-variations-on-a-european-fairytale
#19
J Plaskett, G Chinnery, D Thomson, B Dedekind, E Jonas, S Thomson
BACKGROUND: Trichobezoars are intraluminal accretions of ingested hair. Rapunzel syndrome is a rare and extreme presentation with extension down through into the small intestine. Most frequently reported in children and psychiatric patients, we report on an African series of five patients. METHOD: Five patients presenting with trichobezoars were retrospectively reviewed and analysed with regard to patient background, demographics, clinical presentation, diagnosis, surgical management and complications...
September 2017: South African Journal of Surgery. Suid-Afrikaanse Tydskrif Vir Chirurgie
https://www.readbyqxmd.com/read/28876179/the-inhibitory-effects-of-dracocephalum-moldavica-l-dml-on-rat-cerebral-ischemia-reperfusion-injury
#20
Jian-Xin Jia, Yu Zhang, Zhan-Li Wang, Xu-Sheng Yan, Min Jin, Dong-Sheng Huo, He Wang, Zhan-Jun Yang
Ischemia reperfusion injury (IRI) is closely associated with oxidative stress and inflammatory responses. Dracocephalum moldavica L. (DML), a Chinese herbal medicine is known to exert protective effects on myocardial ischemia reperfusion injury in rats by inhibiting oxidation damage and inflammatory reactions. However, the effectiveness of DML in cerebral ischemia reperfusion injury (CIRI) as a protective substance and the underlying mechanisms remain to be determined. The aim of this study was thus to examine the influence of DML on CIRI using a rat model induced by 2-h transient middle cerebral artery occlusion (MCAO) produced by intraluminal suture blockade followed by 22 h reperfusion...
September 6, 2017: Journal of Toxicology and Environmental Health. Part A
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