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Arteriovenous malformation

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https://www.readbyqxmd.com/read/28087081/-retinal-arteriovenous-malformation
#1
N Stolowy, A Comet, D Denis, F Matonti
No abstract text is available yet for this article.
January 10, 2017: Journal Français D'ophtalmologie
https://www.readbyqxmd.com/read/28076021/radiologic-assessment-of-native-renal-vasculature-a-multimodality-review
#2
Sayf Al-Katib, Monisha Shetty, Syed Mohammad A Jafri, Syed Zafar H Jafri
A wide range of clinically important anatomic variants and pathologic conditions may affect the renal vasculature, and radiologists have a pivotal role in the diagnosis and management of these processes. Because many of these entities may not be suspected clinically, renal artery and vein assessment is an essential application of all imaging modalities. An understanding of the normal vascular anatomy is essential for recognizing clinically important anatomic variants. An understanding of the protocols used to optimize imaging modalities also is necessary...
January 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28072804/multidisciplinary-care-of-unruptured-brain-arteriovenous-malformations-to-improve-symptomatic-headache-and-the-onset-progression-and-outcomes-of-unruptured-brain-arteriovenous-malformations
#3
Ling-Feng Lai, Min Chen, Jia-Xiang Chen, Kuang Zheng, Xu-Ying He, Xi-Feng Li, Xin Zhang, Jian Yin, Qiu-Jing Wang, Tuan-Ming Zou, Chuan-Zhi Duan
BACKGROUND: Symptomatic headaches attributed to unruptured brain arteriovenous malformations (ubAVMs) are very common and affect patients' quality life, but multidisciplinary care of ubAVMs to improve symptomatic headache remains unclear. OBJECTIVE: The objective is to identify the features of symptomatic headaches, and to obtain headache outcomes following multidisciplinary care of ubAVMs, as well as provide background on the natural history of ubAVMs. STUDY DESIGN: The features of symptomatic headaches and headache outcomes were analyzed in a large cohort of cases after multidisciplinary care of ubAVMs...
January 2017: Pain Physician
https://www.readbyqxmd.com/read/28064338/-unknown-title
#4
V J Lund, Y Darby, J Rimmer, M Amin, S Husain
INTRODUCTION: Hereditary haemorrhagic telangiectasia (HHT) is an autosomal dominant vascular disease characterized by recurrent epistaxis, mucocutaneous telangiectasia and visceral arteriovenous malformations. The nosebleeds can be life-threatening and in these circumstances, radical treatment is required. METHODS: Since 1994, closure of the nose has been undertaken to prevent severe nasal bleeding in patients meeting specific selection criteria. Outcome data collected on this cohort pre- and post-operatively is available for analysis...
January 8, 2017: Rhinology
https://www.readbyqxmd.com/read/28059677/hydrocephalus-in-a-patient-with-an-unruptured-pial-arteriovenous-fistula-hydrodynamic-considerations-endovascular-treatment-and-clinical-course
#5
Jesús A Morales-Gómez, Vicente V Garza-Oyervides, José A Arenas-Ruiz, Mariana Mercado-Flores, C Guillermo Elizondo-Riojas, Frederick A Boop, Ángel Martínez-Ponce de León
Intracranial pial arteriovenous fistulas, also known as nongalenic fistulas, are rare vascular malformations affecting predominantly the pediatric population. Hydrocephalus is an unusual presentation in which the exact pathophysiology is not fully understood. The aim of treatment in these cases is occlusion of the fistula prior to considering ventricular shunting. Here, the authors describe the hydrodynamic considerations of the paravascular pathway and the resolution of hydrocephalus with endovascular treatment of the fistula...
January 6, 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28057059/invasive-pneumococcal-disease-caused-by-mucoid-serotype-3-streptococcus-pneumoniae-a-case-report-and-literature-review
#6
Naomi Sugimoto, Yuka Yamagishi, Jun Hirai, Daisuke Sakanashi, Hiroyuki Suematsu, Naoya Nishiyama, Yusuke Koizumi, Hiroshige Mikamo
BACKGROUND: Among the different serotypes of Streptococcus pneumoniae, serotype 3 has received global attention. We report the fatal case of a 76-year-old Japanese man who had an invasive pneumococcal disease associated with pneumonia caused by serotype 3 S. pneumoniae. CASE PRESENTATION: The patient had a history of hypertension, laryngeal cancer, chronic obstructive pulmonary disease, and type 2 diabetes mellitus. Following a cerebral arteriovenous malformation hemorrhage, he underwent surgery to remove the hematoma and began rehabilitation...
January 4, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28054837/radiosurgery-alters-the-endothelial-surface-proteome-externalized-intracellular-molecules-as-potential-vascular-targets-in-irradiated-brain-arteriovenous-malformations
#7
Lucinda S McRobb, Vivienne S Lee, Margaret Simonian, Zhenjun Zhao, Santhosh George Thomas, Markus Wiedmann, Jude V Amal Raj, Michael Grace, Vaughan Moutrie, Matthew J McKay, Mark P Molloy, Marcus A Stoodley
Stereotactic radiosurgery (SRS) is an established treatment for brain arteriovenous malformations (AVMs) that drives blood vessel closure through cellular proliferation, thrombosis and fibrosis, but is limited by a delay to occlusion of 2-3 years and a maximum treatable size of 3 cm. In this current study we used SRS as a priming tool to elicit novel protein expression on the endothelium of irradiated AVM vessels, and these proteins were then targeted with prothrombotic conjugates to induce rapid thrombosis and vessel closure...
January 5, 2017: Radiation Research
https://www.readbyqxmd.com/read/28050516/high-flow-av-malformation-a-v-shunt-of-mandible-a-rare-life-threatening-entity
#8
Sanat Kumar Bhuyan, Krishna Gopal Birmiwal, Indu Bhusan Kar, Ruchi Bhuyan, Priyanka Debta
Intraosseous Arteriovenous Malformations (AVMs) in the head and neck region are very rare and potentially life threatening entities due to massive hemorrhage. These are the results of an embryonic abnormality of the vascular system. Depending on the blood flow and clinical presentations they are of different types like slow flow and high flow AVM. Here we present a case of high flow AVM involving mandible with a chief complain of gingival bleeding in a four year old girl child.
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28050436/symptomatic-granuloma-secondary-to-embolic-agent-a-case-report
#9
Prashant Gunawat, Salman Tehran Shaikh, Vikram Karmarkar, Chandrashekhar Deopujari
Onyx is a liquid embolic agent presently gaining wide acceptance for embolisation of multiple vascular cranial pathologies like Arteriovenous Malformation (AVM) and Arteriovenous Fistula (AVF). Onyx stays in the nidus of vascular pathology and initiates inflammatory response leading to thrombosis and subsequently resulting in occlusion of vascular nidus. However, if onyx spills into the surrounding brain tissue, reaction occurs in the form of foreign body inflammatory reaction. This is one of the very few cases in literature whereby embolisation of AVM with onyx lead to granuloma formation which needed surgical excision...
November 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28050115/uterine-arteriovenous-malformation-a-rare-cause-of-abnormal-uterine-bleeding-in-a-post-menopausal-female
#10
Atul Bucha, Sunil Kumar Chawla, Navdeep Sethi
No abstract text is available yet for this article.
December 2016: Medical Journal, Armed Forces India
https://www.readbyqxmd.com/read/28049610/application-of-fluorescein-sodium-videoangiography-in-surgery-for-spinal-arteriovenous-malformation
#11
Basant K Misra, Saurav K Samantray, Omkar N Churi
We present our recent experience with fluorescein sodium videoangiography (FLVA) in the intra-operative evaluation of a patient with conus medullaris arteriovenous malformation (AVM). To our knowledge this is the first report in the literature of use of FLVA in the surgery of spinal AVM. Intra-operative FLVA was done to identify an early filling vessel and to obliterate the site of fistulous connection. This was correlated and confirmed with simultaneous indocyanine green videoangiography (ICGVA). The conus and cauda equina roots could be appreciated and manipulated in relation to this fluorescence...
December 31, 2016: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28042014/microsurgical-outcome-of-unruptured-brain-arteriovenous-malformations-a-single-center-experience
#12
Xianzeng Tong, Jun Wu, Yong Cao, Yuanli Zhao, Shuo Wang, Jizong Zhao
OBJECTIVE: We aimed to describe our single-center experience in treating unruptured brain arteriovenous malformations (uBAVMs) with microsurgical treatment. METHODS: During a 7-year period, 282 patients with uBAVMs were surgically treated at our institution. Patient clinical features, post-surgical complications, AVM obliteration rate, seizure control and functional outcome were collected and analyzed. Seizure control was evaluated with the Engel Seizure Outcome Scale...
December 29, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/28040200/follow-up-interval-for-small-untreated-pulmonary-arteriovenous-malformations-in-hereditary-haemorrhagic-telangiectasia
#13
D J Ryan, T M O'Connor, M M Murphy, A P Brady
AIM: To investigate the natural history of untreated small (<3 mm) and microscopic pulmonary arteriovenous malformations (PAVMs) in hereditary haemorrhagic telangiectasia (HHT) in order to discern the optimal frequency of follow-up thoracic computed tomography (CT). MATERIALS AND METHODS: A retrospective analysis was performed on the follow-up data for definite and suspected HHT patients with untreated PAVMs. RESULTS: For small PAVMs in definite HHT (n=13), PAVM enlargement was identified in one patient (1/13, 7...
December 29, 2016: Clinical Radiology
https://www.readbyqxmd.com/read/28040140/gestational-choriocarcinoma-with-renal-and-pulmonary-metastases-lacking-a-primary-uterine-origin
#14
Hao-Ming Li, Wen-Chien Hou, Yu-Ju Lai, Chien-Chang Kao, Tai-Kuang Chao, Mu-Hsien Yu, Her-Young Su
OBJECTIVE: We describe a case of gestational choriocarcinoma metastasized to the kidney and lung, which presented initially as refractory hematuria after a term pregnancy 5 years earlier. CASE REPORT: A 35-year-old woman, G2P1, with a previous history of full-term pregnancy in 2009, presented to the emergency department complaining of intermittent gross hematuria for 2 months. Abdominal computed tomography showed a suspicious arteriovenous malformation in the right kidney and a thrombus within the right renal vein...
December 2016: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28031662/hereditary-hemorrhagic-telangiectasia-and-myocardial-infarction
#15
Efrén Martínez-Quintana, Fayna Rodríguez-González, Silvia Gopar-Gopar
Hereditary hemorrhagic telangiectasia, also known as Osler-Weber-Rendu syndrome, is an autosomal dominant genetic disorder that leads to epistaxis, gastrointestinal bleeding, iron deficiency anemia, and arteriovenous malformations at the lungs, the liver, and the brain. However, due to its rarity and its unspecific findings on routine examinations, diagnosis is not easy unless suspected due to hypoxemia or paradoxical embolism. We present a case of a 46-year-old-woman with hereditary hemorrhagic telangiectasia and hypoxemia who presented a myocardial infarction secondary to paradoxical embolism through pulmonary arteriovenous malformations...
December 2016: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28031647/are-congenital-arteriovenous-malformations-of-proximal-upper-extremity-more-on-the-right-case-report-and-literature-review
#16
Satyen Parida, Sumanlata Gupta, B V Sai Chandran
This is a case of a 9-year-old boy with a congenital arteriovenous malformation (AVM) of the right upper extremity arising from the right subclavian artery. He underwent open surgical excision of the vascular tumor. Upon reviewing the literature, a high incidence of right-sided congenital AVM of the proximal upper extremity was identified. It has been suggested that this high incidence may be related to the complexity of the embryologic development of the right subclavian artery.
December 2016: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/28030895/imaging-of-intracranial-hemorrhage
#17
Jeremy J Heit, Michael Iv, Max Wintermark
Intracranial hemorrhage is common and is caused by diverse pathology, including trauma, hypertension, cerebral amyloid angiopathy, hemorrhagic conversion of ischemic infarction, cerebral aneurysms, cerebral arteriovenous malformations, dural arteriovenous fistula, vasculitis, and venous sinus thrombosis, among other causes. Neuroimaging is essential for the treating physician to identify the cause of hemorrhage and to understand the location and severity of hemorrhage, the risk of impending cerebral injury, and to guide often emergent patient treatment...
December 12, 2016: Journal of Stroke
https://www.readbyqxmd.com/read/28028148/strokes-associated-with-pregnancy-and-puerperium-a-nationwide-study-by-the-japan-stroke-society
#18
Kazumichi Yoshida, Jun C Takahashi, Yohei Takenobu, Norihiro Suzuki, Akira Ogawa, Susumu Miyamoto
BACKGROUND AND PURPOSE: The incidence and cause of strokes associated with pregnancy and the puerperium are still not fully understood. The aim of this study was to characterize pregnancy-related strokes in Japan using a large-scale survey with current imaging techniques. METHODS: A retrospective analysis was conducted based on clinical chart reviews in 736 stroke teaching hospitals certified by the Japan Stroke Society between 2012 and 2013, using a web-based questionnaire requesting the detailed clinical course without any personally identifying information...
December 27, 2016: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28017742/embolization-followed-by-radiosurgery-for-the-treatment-of-brain-arteriovenous-malformations-avms
#19
Michael P Marks, Mary L Marcellus, Justin Santarelli, Robert L Dodd, Huy M Do, Steven D Chang, John R Adler, Michael Mlynash, Gary K Steinberg
BACKGROUND: Embolization has been proposed to reduce the size of the AVM nidus in advance of radiosurgical treatment. However, embolization followed by radiosurgery for brain AVMs is controversial. OBJECTIVE: This study assessed the impact of embolization on nidal size prior to radiosurgical treatment and evaluated cure rates and complications using embolization followed by radiosurgery. METHODS: Retrospective review of our institutional AVM database identified 91 patients treated from 1995-2009 with embolization followed by radiosurgery...
December 22, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/28011359/detection-of-a-rare-complication-of-endovascular-treatment-for-brain-avm-by-echocardiography
#20
Mozhgan Parsaee, Sedigheh Saedi, Sepideh Emami, Alireza Serati
A brain arteriovenous malformation (AVM) is a congenital malformation of the vascular system, in which an abnormal short circuit (vascular malformation) connects cerebral arteries and veins. When the brain AVMs are diagnosed, the majority of them must be closed with surgical or endovascular treatment; because only a small portion of the brain AVMs remain asymptomatic during the patient's life. Endovascular trans-arterial embolization using Onyx is a suitable method of treating brain AVMs. Previously known complications of onyx usage are bleeding and neurologic deficits...
December 21, 2016: World Neurosurgery
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