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Arteriovenous Malformations

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https://www.readbyqxmd.com/read/29033646/cerebrovascular-events-secondary-to-pulmonary-arteriovenous-malformation-based-on-genetic-heterogeneity
#1
Güner Çelik, Hüseyin Yurdakul, Erkan Yildirim
No abstract text is available yet for this article.
September 2017: Noro Psikiyatri Arsivi
https://www.readbyqxmd.com/read/29025196/prenatal-molecular-diagnosis-in-rasa1-related-disease
#2
Aurélien Palmyre, Mélanie Eyries, Marie-Victoire Senat, Augustin Ozanne, Stéphanie Staraci, Philippe Dufour, Thierry Chinet, Pascal Lacombe, Florent Soubrier, Philippe Charron
RASA1-related disease is a rare autosomal dominant disease characterized by capillary malformations, arteriovenous malformations (AVMs) and/or arteriovenous fistulas (AFVs). Penetrance is nearly complete and vascular malformations may cause serious complications such as organ injury due to oxygenation disorder, brain abscess, hemorrhage and stroke. Early diagnosis is useful in order to discuss optimal management, including AVMs/AVFs embolization or surgical procedures, and try to prevent some of the complications...
October 12, 2017: Prenatal Diagnosis
https://www.readbyqxmd.com/read/29024832/somatic-second-hit-mutation-of-rasa1-in-vascular-endothelial-cells-in-capillary-malformation-arteriovenous-malformation
#3
Philip E Lapinski, Abbas Doosti, Valerie Salato, Paula North, Patricia E Burrows, Philip D King
Capillary malformation-arteriovenous malformation (CM-AVM) is an autosomal dominant vascular disorder that is associated with inherited inactivating mutations of the RASA1 gene in the majority of cases. Characteristically, patients exhibit one or more focal cutaneous CM that may occur alone or together with AVM, arteriovenous fistulas or lymphatic vessel abnormalities. The focal nature and varying presentation of lesions has led to the hypothesis that somatic "second hit" inactivating mutations of RASA1 are necessary for disease development...
October 9, 2017: European Journal of Medical Genetics
https://www.readbyqxmd.com/read/29021642/bevacizumab-as-a-treatment-for-hereditary-hemorrhagic-telangiectasia-in-children-a-case-report
#4
Fabio E Ospina, Alex Echeverri, Iván Posso-Osorio, Lina Jaimes, Jaiber Gutierrez, Gabriel J Tobón
CASE DESCRIPTION: Five-year-old female patient with hereditary hemorrhagic telangiectasia. CLINICAL FINDINGS: Deterioration of cardiopulmonary function with higher oxygen requirements secondary to pulmonary arteriovenous shunts, epistaxis. TREATMENT AND OUTCOME: The patient was treated with the monoclonal antibody bevacizumab, which inhibits the vascular endothelial growth factor, with good clinical outcome. CLINICAL RELEVANCE: Hereditary hemorrhagic telangiectasia is an autosomal dominant disorder characterized by arteriovenous malformations in different organs, making its clinical presentations varied...
June 30, 2017: Colombia Médica: CM
https://www.readbyqxmd.com/read/29021313/periorbital-arteriovenous-malformations-a-word-of-caution
#5
EDITORIAL
Joseph J Gemmete
No abstract text is available yet for this article.
October 11, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/29018941/pulmonary-arteriovenous-malformations-in-hereditary-haemorrhagic-telangiectasia-correlations-between-computed-tomography-findings-and-cerebral-complications
#6
Johan Etievant, Salim Si-Mohamed, Nicolas Vinurel, Sophie Dupuis-Girod, Evelyne Decullier, Delphine Gamondes, Chahera Khouatra, Vincent Cottin, Didier Revel
OBJECTIVES: Computed tomography (CT) is the modality of choice to characterise pulmonary arteriovenous malformations (PAVMs) in patients with hereditary haemorrhagic telangiectasia (HHT). Our objective was to determine if CT findings were associated with frequency of brain abscess and ischaemic stroke. METHODS: This retrospective study included patients with HHT-related PAVMs. CT results, i.e. PAVM presentation (unique, multiple, disseminated or diffuse), the number of PAVMs and the largest feeding artery size, were correlated to prevalence of ischaemic stroke and brain abscess...
October 10, 2017: European Radiology
https://www.readbyqxmd.com/read/29018013/stroke-resulting-from-an-isolated-pulmonary-arteriovenous-malformation
#7
Jakob Saidman, Hossam Abdou, Sridhar Sampath Kumar
Isolated pulmonary arteriovenous malformations (PAVM) are rare, but can be responsible for paradoxical embolic events. It is important to recognise these situations early and intervene quickly to attain the best outcome. We describe the case of a 45-year-old woman with a long-standing history of migraines with aura who presented to the emergency department with left-sided weakness and slurred speech. Work-up was unclear and she was diagnosed with cryptogenic stroke. Follow-up transoesophageal echocardiogram was suggestive of an atrial septal defect, though no clear defect was evident...
October 10, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28994317/isolated-cervical-anterior-spinal-artery-aneurysm-case-report
#8
Yam Bahadur Roka
Isolated cervical anterior spinal artery (CASA) aneurysms are extremely rare with most of them mostly associated with arteriovenous malformation. The underlying pathology is not known but some factors leading to the aneurysm are inflammatory, infection and connective tissue disorders. Trauma with formation of pseudoaneurysm has also been reported. We report a case which presented with fourth ventricle bleed and was managed successfully with conservative treatment.
October 10, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28993442/in-room-assessment-of-intravascular-velocity-from-time-resolved-rotational-angiography-in-patients-with-arteriovenous-malformation-a-pilot-study
#9
Chung Jung Lin, Huai Che Yang, Ai Chi Chien, Wan Yuo Guo, Chih Chun Wu, Sheng Che Hung, Ko Kung Chen, Hsiu Mei Wu, Chao Bao Luo, Wei Fa Chu, Jia Sheng Hong, Chun Shien Frank Wu
BACKGROUND: Time-resolved rotational angiography (t-RA) enables interventionists to better comprehend complex arteriovenous malformations (AVMs), thereby facilitating endovascular treatment. However, its use in evaluating hemodynamic changes has rarely been explored. OBJECTIVE: This study uses t-RA to estimate intravascular flow in patients with AVM to compare this with flow in the normal population. METHODS: Patients with available t-RA scans were prospectively categorized into one of three groups: hemorrhagic AVM, non-hemorrhagic AVM and control...
October 9, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28990732/first-use-of-micro-vascular-plugs-in-australia-endovascular-treatment-of-pulmonary-arteriovenous-malformation
#10
Liat Barrett, Nicholas I Brown, Varghese Pynadath Joseph
This report describes the first Australian experience with the Micro Vascular Plug System (MVP), as a permanent embolic device for the treatment of pulmonary arteriovenous malformations (PAVMs). MVPs deployed in small vessels between 2 mm and 5 mm are demonstrated to be feasible, safe and effective treatment for PAVMs.
October 9, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28990006/distal-pancreatectomy-for-pancreatic-arteriovenous-malformation-report-of-a-case
#11
Young Il Choi
Arteriovenous malformation (AVM) of the pancreas is an uncommon disease, which can cause an abdominal pain. This disease is characterized by a tangled vascular network, including the whole or part of the pancreas, resulting in portal hypertension by forming a shunt of the pancreas arteries to drain directly into the portal venous system. This study presents a case that was suspected as AVM of the pancreas by preoperative contrast-enhanced computed tomography scan (CT). A 49-year-old male patient had several episodes of abdominal discomfort associated with dyspepsia for 4 days...
August 2017: Annals of Hepato-Biliary-Pancreatic Surgery
https://www.readbyqxmd.com/read/28989994/arteriovenous-malformation-in-a-youth-with-atypical-autism-symptoms
#12
Veena Sison, Tracy Stackhouse, Robert Breeze, Terry Hall, Pamela McKenzie, Nicole Tartaglia
Cerebral arteriovenous malformations (AVMs) present a challenge to diagnose in children with developmental disability, because of the overlap in behavioral symptoms and neurologic manifestations. They have been very rarely reported in conjunction with autism spectrum disorder. This case involves a 13 year old male with a history of autism spectrum disorder and significant behavioral issues diagnosed with a thalamic AVM following lateralizing neurologic symptoms. Despite radiosurgical treatment, hemorrhage followed consequently causing extensive neurologic injury and death...
2017: J Child Dev Disord
https://www.readbyqxmd.com/read/28989145/-clinical-and-genetic-diagnosis-in-a-hereditary-hemorrhagic-telangiectasia-family
#13
Yan Yi, Xiaofeng Liu, Boda Wu, Jun Liu, Shenglei Ge, Xiaoliu Shi
To investigate the clinical features and feasibility genetic diagnosis in a hereditary hemorrhagic telangiectasia (HHT) family, and to explore the application of gene mutation testing in HHT diagnosis.
 Methods: Medical histories and clinical features of a family were analyzed to diagnose HHT patients and suspected individuals according to the clinical diagnostic criteria. Sequence analysis of endoglin (ENG) and activin A receptor like type 1 (ACVRL1) gene in the proband was performed with PCR and Sanger sequencing technology...
September 28, 2017: Zhong Nan da Xue Xue Bao. Yi Xue Ban, Journal of Central South University. Medical Sciences
https://www.readbyqxmd.com/read/28988494/extravasation-of-contrast-spot-sign-predicts-in-hospital-mortality-in-ruptured-arteriovenous-malformation
#14
Zengpanpan Ye, Xiaolin Ai, Jun Zheng, Xin Hu, Chao You, Faramand Andrew M, Fang Fang
BACKGROUND AND PURPOSE: The spot sign is a highly specific and sensitive predictor of hematoma expansion in following primary intracerebral hemorrhage (ICH). Rare cases of the spot sign have been documented in patients with intracranial hemorrhage secondary to arteriovenous malformation (AVM). The purpose of this retrospective study is to assess the accuracy of spot sign in predicting clinical outcomes in patients with ruptured AVM. MATERIALS AND METHODS: A retrospective analysis of a prospectively maintained database was performed for patients who presented to West China Hospital with ICH secondary to AVM in the period between January 2009 and September 2016...
October 9, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/28987845/recurrent-cerebral-hemorrhages-in-normal-pregnancy-secondary-to-mycotic-pseudoaneurysms-related-to-choriocarcinoma
#15
Crystal Jing Jing Yeo, Gavin W Britz, Suzanne Z Powell, R Glenn Smith, Yi J Zhang
BACKGROUND: Choriocarcinoma coexisting with or after normal pregnancy is extremely rare. To our knowledge, our case report is the first time cerebral mycotic pseudoaneurysms from choriocarcinoma have been proven angiographically. CASE DESCRIPTION: A 38-week pregnant 26-year old woman presented with an acute left frontal hemorrhage. She underwent emergency Caesarian, followed by hematoma evacuation and resection of what grossly appeared to be a medium-sized arteriovenous malformation at the time of surgery...
October 5, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28987836/successful-surgical-resection-of-spinal-artery-aneurysms-report-of-three-cases
#16
Yanming Ren, Min He, Chao You, Jin Li
BACKGROUND: Spinal artery aneurysms (SAAs) are extremely rare lesions that can occur in isolation or associated with vascular malformations. Herein, we present three unusual cases of SAAs, and discuss imaging, diagnosis and surgical management strategies. CASE DESCRIPTION: The first case was a 57-year-old woman who presented with sudden onset of severe headache. Spinal angiography demonstrated an isolated anterior spinal artery (ASA) aneurysm at the level of craniocervical junction...
October 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28987686/can-the-pine-needle-sign-on-computed-tomography-be-used-to-differentiate-pulmonary-arteriovenous-malformation-from-its-mimics-analysis-based-on-dynamic-contrast-enhanced-chest-computed-tomography-in-adults
#17
Koji Tokunaga, Takeshi Kubo, Toshihide Yamaoka, Hiroyoshi Isoda, Kaori Togashi
OBJECTIVES/PURPOSE: To determine the diagnostic value of morphological features on computed tomography (CT) in the differentiation of pulmonary arteriovenous malformation (pAVM) and its mimics. MATERIALS AND METHODS: We retrospectively examined 59 consecutive patients (109 lesions) with initially suspected or occult pAVM who underwent contrast-enhanced chest CT from January 2006 to June 2016. All lesions were divided into two groups based on their diagnosis: AVM (n=93) and non-AVM (n=16)...
October 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28987196/overview-of-neuroradiology
#18
Elna-Marie Larsson, Johan Wikström
Neuroradiology with computed tomography (CT) and magnetic resonance imaging (MRI) is essential for the initial evaluation of patients with a clinical suspicion of brain and spine disorders. Morphologic imaging is required to obtain a probable diagnosis to support the treatment decisions in pre- and perinatal disorders, vascular diseases, traumatic injuries, metabolic disorders, epilepsy, infection/inflammation, neurodegenerative disorders, degenerative spinal disease, and tumors of the central nervous system...
2017: Handbook of Clinical Neurology
https://www.readbyqxmd.com/read/28986976/development-of-an-international-core-outcome-set-for-peripheral-vascular-malformations-ovama-project
#19
S E R Horbach, C M A M van der Horst, F Blei, C J M van der Vleuten, I J Frieden, G T Richter, S T Tan, T Muir, A Penington, L M Boon, P I Spuls
BACKGROUND: An important limitation in vascular malformation research is the heterogeneity in outcome measures used for the evaluation of treatment outcome. OBJECTIVE: The Outcome measures for VAscular MAlformations (OVAMA) project aimed to reach international consensus on a core outcome set (COS) for clinical research on peripheral vascular malformations: lymphatic (LM), venous (VM) and arteriovenous malformations (AVM). In this consensus study, we determined what domains should constitute the COS...
October 7, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28986471/international-multicentre-validation-of-the-arteriovenous-malformation-related-intracerebral-haemorrhage-avich-score
#20
Marian C Neidert, Michael T Lawton, Louis J Kim, John D Nerva, Kaoru Kurisu, Fusao Ikawa, Juergen Konczalla, Nazife Dinc, Volker Seifert, Julian Habdank-Kolaczkowski, Taketo Hatano, Makoto Hayase, Dino Podlesek, Gabriele Schackert, Thomas Wanet, Sven Gläsker, Christoph J Griessenauer, Christopher S Ogilvy, Andreas Kneist, Ulrich Sure, Burkhardt Seifert, Luca Regli, Oliver Bozinov, Jan-Karl Burkhardt
OBJECTIVE: The recently published arteriovenous malformation-related intracerebral haemorrhage (AVICH) score showed better outcome prediction for patients with arteriovenous malformation (AVM)-related intracerebral haemorrhage (ICH) than other AVM or ICH scores. Here we present the results of a multicentre, external validation of the AVICH score. METHODS: All participating centres (n=11) provided anonymous data on 325 patients to form the Spetzler-Martin (SM) grade, the supplemented SM (sSM) grade, the ICH score and the AVICH score...
October 6, 2017: Journal of Neurology, Neurosurgery, and Psychiatry
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