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https://www.readbyqxmd.com/read/29142484/contemporary-management-of-pulmonary-arteriovenous-malformations
#1
REVIEW
Nicholas Rauh, John Gurley, Sibu Saha
Pulmonary arteriovenous malformations (PAVMs) are atypical vascular structures involving a direct connection between the pulmonary arterial and venous circulations. While PAVMs are a relatively uncommon disorder, unmanaged cases are at risk for the development of serious complications including embolization and infection. Since their first description in 1897, PAVMs have been identified and treated in a variety of ways. Advancements in diagnostic methods and operative techniques have allowed for more effective treatment of the disease...
December 2017: International Journal of Angiology: Official Publication of the International College of Angiology, Inc
https://www.readbyqxmd.com/read/29137915/first-line-direct-access-for-transarterial-embolization-of-a-dural-arteriovenous-fistula-case-report-and-literature-review
#2
Brent J Doolan, Iddo Paldor, Peter J Mitchell, Andrew P Morokoff
Intracranial dural arteriovenous fistulae (DAVF) are complex vascular malformations consisting of a pathological shunt located between meningeal arteries and drainage to dural venous sinuses and/or cerebral veins. We report an unusual anatomical variation, resulting in a DAVF forming between the superior sagittal sinus and an anomalous origin of the middle meningeal artery (MMA) arising from the left ophthalmic artery. We present an atypical case requiring mini-craniotomy for catheter access, as well as cannulation of extracranial arterial supply prior to embolization of a Cognard type IIa+b fistula...
November 11, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29137094/a-novel-non-contrast-enhanced-mra-using-silent-scan-for-evaluation-of-brain-arteriovenous-malformation-a-case-report-and-review-of-literature
#3
Jin Il Moon, Hye Jin Baek, Kyeong Hwa Ryu, Hyun Park
RATIONALE: Brain arteriovenous malformations (AVMs) are congenital vascular abnormalities involving abnormal connections between arteries and veins. In clinical practice, imaging studies help evaluate feeding arteries, niduses, draining venous systems, and coexisting complications in patients with brain AVM. They also have an impact on decision-making regarding clinical management. We applied a novel non-contrast-enhanced MR angiography (MRA) technique, termed "silent MRA," for evaluating an incidental brain AVM...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29110903/spinal-dural-arteriovenous-fistulas-the-most-frequent-vascular-malformations-of-the-spinal-cord
#4
J Iglesias Gordo, R Martínez García
Spinal dural arteriovenous fistulas are produced by direct communication between the arterial and venous systems of the spinal cord, causing hypertension in the latter with spinal cord dysfunction. It is a rare pathology with unknown etiology and non-specific clinical symptoms that usually results in a delayed diagnosis. Often radiologists are the first to guide the disease towards an adequate diagnosis. Characteristic findings can be seen through MR or MR angiography, and may even locate the fistula in a high percentage of cases, although the pathology must be confirmed by spinal angiography...
October 27, 2017: Radiología
https://www.readbyqxmd.com/read/29071074/long-term-outcomes-of-patients-with-pulmonary-arteriovenous-malformations-considered-for-lung-transplantation-compared-with-similarly-hypoxaemic-cohorts
#5
Claire L Shovlin, Elisabetta Buscarini, J Michael B Hughes, David J Allison, James E Jackson
INTRODUCTION: Pulmonary arteriovenous malformations (PAVMs) may not be amenable to treatment by embolisation or surgical resection, and many patients are left with significant hypoxaemia. Lung transplantation has been undertaken. There is no guidance on selection criteria. METHODS: To guide transplantation listing assessments, the outcomes of the six patients who had been considered for transplantation were compared with a similarly hypoxaemic patient group recruited prospectively between 2005 and 2016 at the same UK institution...
2017: BMJ Open Respiratory Research
https://www.readbyqxmd.com/read/29058996/successful-use-of-extracorporeal-membrane-oxygenation-in-a-child-with-obstructive-shock-due-to-massive-bilateral-pulmonary-embolism
#6
Aditya Badheka, Pradeep Bangalore Prakash, Veerajalandhar Allareddy
BACKGROUND: Acute massive pulmonary embolism (PE) is a very rare condition in children. We report the successful use of veno-arterial extracorporeal membrane oxygenation (VA ECMO) as a lifesaving modality in a child with acute massive PE. CASE PRESENTATION: A nine-year-old female with spinal muscular atrophy type 1, chronic respiratory failure with tracheostomy and ventilator dependence presented with tachypnea and hypoxia. She had recent coiling of her pulmonary arterio-venous malformation...
October 1, 2017: Perfusion
https://www.readbyqxmd.com/read/28990006/distal-pancreatectomy-for-pancreatic-arteriovenous-malformation-report-of-a-case
#7
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/28977152/dural-sinus-malformation-presenting-with-seizure-and-treated-by-combined-arterial-and-venous-embolization
#8
Ulysses C Batista, Thiago Giansante Abud, Carlos Eduardo Baccin, Renato Tavares Tosello, Aron Athayde Diniz, Benedito Jamilson Araújo Pereira, Ronie Leo Piske
No abstract text is available yet for this article.
September 2017: Arquivos de Neuro-psiquiatria
https://www.readbyqxmd.com/read/28973579/cerebrovascular-imaging-which-test-is-best
#9
Amy Lin, Sapna Rawal, Ronit Agid, Daniel M Mandell
Optimal diagnosis and characterization of cerebrovascular disease requires selection of the appropriate imaging exam for each clinical situation. In this review, we focus on intracranial arterial disease and discuss the techniques in current clinical use for imaging the blood vessel lumen and blood vessel wall, and for mapping cerebral hemodynamic impairment at the tissue level. We then discuss specific strategies for imaging intracranial aneurysms, arteriovenous malformations, dural arterial venous fistulas, and arterial steno-occlusive disease...
June 23, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28973431/arteriovenous-malformations-of-the-temporalis-muscle-a-comprehensive-review
#10
Javier Ros de San Pedro, Beatriz Cuartero Pérez, Belén Ferri Ñíguez, Víctor Villanueva San Vicente
Arteriovenous malformations of the temporalis muscle (TM-AVMs) are rare lesions commonly considered as a variant of scalp AVMs. A study was designed in order to analyze TM-AVMs features and to confirm them as a certain entity different from scalp AVMs. Seven TM-AVMs cases (5 from literature plus 2 from our database) were studied. Clinical, epidemiological, radiological, and therapeutic data were analyzed and compared to common scalp AVMs features. All TM-AVMs presented as large soft tumor-like masses on the temporal region (mean diameter: 6 cm)...
July 20, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28969199/an-unusual-case-of-giant-arterio-venous-malformation-of-anterior-abdominal-wall
#11
P S Aravinda, Hirdaya Hulas Nag, Vithal Kumar M Betigeri, Puja Sakhuja, Ashok Sharma
Arterio-Venous Malformations (AVMs) are high flow vascular anomalies, commonly seen in head, neck and extremities. AVMs represent a direct connection between the arterial and the venous systems. They are congenital, often asymptomatic and rarely manifest before adolescence. Depending on the site, size and symptoms, treatment options varies from conservative management to surgical resection. Here, we report a case of 20-year-old male patient with long standing lump in the anterior abdominal wall with no typical clinical features of vascular lesions...
August 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28965104/imaging-features-and-prognostic-factors-in-fetal-and-postnatal-torcular-dural-sinus-malformations-part-ii-synthesis-of-the-literature-and-patient-management
#12
Edward Yang, Armide Storey, Heather E Olson, Janet Soul, Judy A Estroff, Cameron C Trenor, Benjamin K Cooper, Edward R Smith, Darren B Orbach
BACKGROUND: Torcular dural sinus malformations (tDSMs) are described as slow flow dural arteriovenous fistulae with frequently poor outcomes in the neuroangiographic literature, but other etiologies have been proposed in the obstetric literature, where outcomes have been more favorable. OBJECTIVE: To review tDSMs reported in the literature of multiple specialties for features that support a common etiology, and to identify key prognostic factors, with an emphasis on tDSM trajectory highlighted in part I...
September 30, 2017: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/28963775/clinical-and-hemodynamic-risk-factors-associated-with-discrepancies-in-lower-limb-length-with-capillary-malformations-data-from-the-national-paediatric-french-cohort-conape
#13
M Samimi, M Durieux-Verde, A Caille, J Mazereeuw-Hautier, O Boccara, L Martin, C Chiaverini, C Eschard, N Beneton, P Vabres, X Balguerie, P Plantin, D Bessis, S Barbarot, A Dadban, C Droitcourt, S Leducq, G Lorette, B Morel, A Maruani
BACKGROUND: Genetics discoveries have allowed for better understanding capillary malformations (CMs) with overgrowth syndrome. However, molecular analyses are still not easy to perform or interpret. Other analytical methods are needed. OBJECTIVE: We aimed to identify clinical and hemodynamic factors associated with leg length discrepancy (LLD) in children with CM of lower limbs. METHODS: Data were obtained from the multicentre French national cohort CONAPE (COhorte Nationale d'enfants atteints d'Angiome Plan de membrE inférieur), including children from 2 to 12 years old with CM of lower limbs...
September 30, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/28960150/pure-arterial-malformations
#14
Waleed Brinjikji, Harry J Cloft, Kelly D Flemming, Simone Comelli, Giuseppe Lanzino
OBJECTIVE Over the last half century, there have been isolated case reports of purely arterial malformations. In this study, the authors report a consecutive series of patients with pure arterial malformations, emphasizing the clinical and radiological features of these lesions. METHODS Pure arterial malformations were defined as dilated, overlapping, and tortuous arteries with a coil-like appearance and/or a mass of arterial loops without any associated venous component. Demographic characteristics of the patients, cardiovascular risk factors, presentation, radiological characteristics, and follow-up data were collected...
September 29, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28955513/visualization-of-soft-tissue-venous-malformations-of-head-and-neck-with-4d-flow-magnetic-resonance-imaging
#15
Ji Ye Lee, Dae Chul Suh
Evaluation of hemodynamics in venous malformation (VM) in the head and neck area is done by direct puncture venography before alcohol sclerotherapy, but it is difficult due to a variable degree of filling in from the artery and filling out into the draining vein. We present our preliminary experience of 4D MRI to evaluate VM hemodynamics. Four patients with venous malformation in the maxillofacial area underwent both 4D MRI and direct puncture venography before alcohol sclerotherapy. To find out appropriate velocity encoding (VENC) for VM, we applied 5-50 cm/sec VENC...
September 2017: Neurointervention
https://www.readbyqxmd.com/read/28954598/endovascular-management-of-a-giant-high-flow-lower-limb-arteriovenous-malformation
#16
Belén Ramírez-Senent, José M Abadal, Esther Vázquez, Isabel Lago, Esther Gálvez, Miguel A Araujo, Manuel I de la Quintana
PURPOSE: High-flow arteriovenous malformations (AVMs) may pose a challenge for endovascular treatment due to high-flow rates. Incomplete treatment, recurrence, or even worsening can occur if a proper management is not performed. We report a case successfully treated with endovascular therapy. CASE REPORT: A 37-year-old male was referred to our hospital with a soft tumor in the left thigh, limb asymmetry and associated pain. Doppler ultrasound and magnetic resonance imaging showed an extensive high-flow AVM with a venous aneurysm of 40 mm diameter...
November 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28936439/a-case-of-pulmonary-arteriovenous-malformation-role-of-interventional-radiology-in-diagnosis-and-treatment
#17
Pranav Sharma, Puneet Kochar, Salil Sharma, Nishant Gupta, Shuo Li, Kusum Hooda, Yogesh Kumar
Pulmonary arterio-venous malformations (PAVMs) are abnormal pulmonary arteries and pulmonary veins communicating directly without interposition of a capillary bed and about 80-90% of patients with PAVMs eventually may present with hereditary hemorrhagic telangiectasia (HHT), remaining ones are sporadic cases. On the other hand, about 15-35% of HHT patients may present with PAVMs. The PAVMs have a tendency to grow and increase in size over time and various factors like puberty, pregnancy and pulmonary arterial hypertension (PAH) affect growth...
September 2017: Annals of Translational Medicine
https://www.readbyqxmd.com/read/28927932/chitosan-doxycycline-hydrogel-an-mmp-inhibitor-sclerosing-embolizing-agent-as-a-new-approach-to-endoleak-prevention-and-treatment-after-endovascular-aneurysm-repair
#18
Fatemeh Zehtabi, Pompilia Ispas-Szabo, Djahida Djerir, Lojan Sivakumaran, Borhane Annabi, Gilles Soulez, Mircea Alexandru Mateescu, Sophie Lerouge
The success of endovascular repair of abdominal aortic aneurysms remains limited due to the development of endoleaks. Sac embolization has been proposed to manage endoleaks, but current embolizing materials are associated with frequent recurrence. An injectable agent that combines vascular occlusion and sclerosing properties has demonstrated promise for the treatment of endoleaks. Moreover, the inhibition of aneurysmal wall degradation via matrix metalloproteinases (MMPs) may further prevent aneurysm progression...
December 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28923299/masson-s-tumor-revealed-by-an-intracerebral-hematoma-case-report-and-a-review-of-the-literature
#19
C Salaud, D Loussouarn, K Buffenoir, T Riem
We report the case of a 56-year-old woman who underwent total resection of a Masson's tumor or intravascular papillary endothelial hyperplasia (IPEH), which was discovered due to a left temporal intracerebral hematoma revealed by aphasia. IPEH is more often localized on cutaneous and subcutaneous locations, intracranial IPEH are rare and only approximately twenty cases have been published to date. These tumors are a benign vascular lesion composed of papillary intravascular proliferation of epithelial cellular associated thrombosis with fibrin deposits responsible for vascular lumen obliteration...
September 15, 2017: Neuro-Chirurgie
https://www.readbyqxmd.com/read/28917138/pulmonary-venous-anomalies-causing-misdiagnosis-of-pulmonary-arteriovenous-malformations
#20
Cheng Ting Lin, Stefan Loy Zimmerman, Sally Elizabeth Mitchell, Elliot K Fishman
PURPOSE: To investigate pulmonary venous anomaly as a cause of pulmonary arteriovenous malformation (PAVM) misdiagnosis. MATERIALS AND METHODS: We reviewed adult patients within a 7.5-year period with CT scans initially diagnosed with PAVM and subsequent conventional pulmonary angiograms. RESULTS: Pulmonary arteriography showed no PAVM on arterial phase for 10 out of 99 patients, comprising the misdiagnosed group. Four misdiagnosed patients had pulmonary venous anomalies and six had nodular lesions on CT...
September 8, 2017: Clinical Imaging
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