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Arteriovenous malformation

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https://www.readbyqxmd.com/read/29781371/quantification-of-tantalum-sedimentation-rates-in-liquid-embolic-agents
#1
J R Mason, C Dodge, G Benndorf
Background Endovascular treatment (EVT) of brain arteriovenous malformations has evolved from cyanoacrylate derivatives such as N-butyl cyanoacrylate, an adhesive glue, to ethylene vinyl copolymer-based liquid embolics such as Onyx® and SQUID® dissolved in dimethyl sulfoxide. Although these agents offer several advantages, their rapidly decreasing radiopacity, as a result of the sedimentation of tantalum powder, compromises visual control during EVT. This study aims to quantify and compare tantalum sedimentation rates of several liquid embolic agents, and determine their effects on radiopacity...
January 1, 2018: Interventional Neuroradiology
https://www.readbyqxmd.com/read/29781080/acquired-uterine-arteriovenous-malformation-a-diagnostic-dilemma
#2
Agata Szpera-Goździewicz, Karolina Gruca-Stryjak, Grzegorz H Bręborowicz, Mariola Ropacka-Lesiak
Uterine arteriovenous malformations are uncommon but potentially life-threatening condition. They can be congenital or acquired and should be suspected in cases of severe or persistent uterine bleeding. In recent years, there has been an increasing number of reports of acquired vascular lesions of the uterus following pregnancy, abortion, caesarean delivery and curettage. This paper presents the case of unexplained vaginal bleeding with subsequent suspicion and diagnosis of uterine arteriovenous malformation...
2018: Ginekologia Polska
https://www.readbyqxmd.com/read/29780232/cerebral-arteriovenous-malformations-in-the-era-of-embolization-for-angiographic-cure-a-single-center-experience-in-egypt
#3
Mohamed K Elewa
Background: Embolization for cerebral arteriovenous malformations (AVMs) has evolved in the last decade with evolution in both equipment and material. Embolization targets have expanded to include angiographic cure. Methods: To discuss the technical and management outcomes of our first cerebral AVM case series treated with embolization. The clinical, angiographic, treatment, and outcome variables of consecutive cerebral arteriovenous malformation cases, treated with curative embolization, between January 2011 and June 2017 in one regional center, were retrospectively analyzed...
2018: The Egyptian journal of neurology, psychiatry and neurosurgery
https://www.readbyqxmd.com/read/29777889/endovascular-management-of-a-ruptured-basilar-perforator-artery-aneurysm-associated-with-a-pontine-arteriovenous-malformation-a-case-report-and-review-of-the-literature
#4
Joseph Lockwood, Tyler Scullen, Mansour Mathkour, Ascher Kaufmann, Ricky Medel, Aaron S Dumont, Peter S Amenta
BACKGROUND: Arteriovenous malformation (AVM)-associated aneurysms are common, being reported in 15% of cases. In regards to ruptured posterior fossa AVMs, associated aneurysms are present in 48% of cases and are the etiology of the bleed in 37%. We present a 75 year-old female who presented with a subarachnoid hemorrhage (SAH) secondary to a ruptured aneurysm arising from a flow-related basilar perforator artery feeder of an anterior pontine AVM. We report the successful treatment of the aneurysm with coil embolization...
May 16, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29775156/letter-to-the-editor-pericyte-associated-hemorrhage-in-arteriovenous-malformations
#5
Davis G Taylor, Ching-Jen Chen, Thomas J Buell, Min S Park, J Javier Provencio, M Yashar S Kalani
No abstract text is available yet for this article.
May 18, 2018: Journal of Neurosurgery
https://www.readbyqxmd.com/read/29772407/total-laparoscopic-hysterectomy-for-endometriosis-and-an-arteriovenous-malformation
#6
Emilie Schwartz, Emilie Faller, Chérif Youssef Akladios, Michel Greget, Catherine Roy, Arnaud Wattiez
STUDY OBJECTIVE: Demonstrate a laparoscopic management of an arteriovenous malformation in a patient with deep pelvic endometriosis DESIGN: A step-by-step explanation of the surgery using video (instructive video). SETTING: Hautepierre Universitary Hospital of Strasbourg in France INTERVENTION: We describe the case of a 37 years old patient presenting deep pelvic endometriosis and an uterine arteriovenous malformation. It was during a tubal ligation in 2015, that the deep pelvic endometriosis was diagnosed...
May 14, 2018: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29772406/fertility-pregnancy-and-clinical-outcomes-after-uterine-arteriovenous-malformation-management
#7
Sophie Delplanque, Maela Le Lous, Maïa Proisy, Yolaine Joueidi, Estelle Bauville, Celine Rozel, Eugénie Beraud, Bertrand Bruneau, Jean Levêque, Vincent Lavoué, Krystel Nyangoh Timoh
STUDY OBJECTIVE: To evaluate fertility, pregnancy, and clinical outcomes after uterine arteriovenous malformation (UAVM) management. DESIGN: Single-center retrospective study from January 2000 to July 2017. (Canadian task force III). SETTING: One referral center. PATIENTS: Twenty-two patients with a UAVM diagnosed by Magnetic Resonance Angiography (MRA) or Computed Tomography (CT) angiography and managed by Expectant Management (EM) or Uterine Arterial Embolization (UAE) during the study period were included...
May 14, 2018: Journal of Minimally Invasive Gynecology
https://www.readbyqxmd.com/read/29772363/a-comprehensive-study-of-symptomatic-late-radiation-induced-complications-after-radiosurgery-for-brain-arteriovenous-malformation-incidence-risk-factors-and-clinical-outcomes
#8
Hirotaka Hasegawa, Shunya Hanakita, Masahiro Shin, Takehiro Sugiyama, Mariko Kawashima, Wataru Takahashi, Masaaki Shojima, Osamu Ishikawa, Hirofumi Nakatomi, Nobuhito Saito
OBJECT: Stereotactic radiosurgery (SRS) is widely used to treat brain arteriovenous malformation (AVM); however, detailed information on late radiation-induced complications (LRICs) is scarce. The goal of the present study was to characterize the incidence, risk factors, and clinical outcomes of LRICs based on our long-term follow-up data. METHODS: The outcomes of consecutive patients who underwent SRS for AVMs at our institution in 1990-2010 were analyzed. Cyst formation/encapsulated hematoma (CF/EH) and radiation-induced tumor (RIT) were defined as LRICs...
May 14, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29769453/comparison-of-the-long-term-efficacy-and-safety-of-gamma-knife-radiosurgery-for-arteriovenous-malformations-in-pediatric-and-adult-patients
#9
Hirotaka Hasegawa, Shunya Hanakita, Masahiro Shin, Mariko Kawashima, Wataru Takahashi, Osamu Ishikawa, Satoshi Koizumi, Hirofumi Nakatomi, Nobuhito Saito
It is debated whether the efficacy and long-term safety of gamma knife radiosurgery (GKRS) for arteriovenous malformations (AVMs) differs between adult and pediatric patients. We aimed to clarify the long-term outcomes of GKRS in pediatric patients and how they compare to those in adult patients. We collected data for 736 consecutive patients with AVMs treated with GKRS between 1990 and 2014 and divided the patients into pediatric (age < 20 years, n = 144) and adult (age ≥ 20 years, n = 592) cohorts. The mean follow-up period in the pediatric cohort was 130 months...
May 17, 2018: Neurologia Medico-chirurgica
https://www.readbyqxmd.com/read/29762746/microsurgery-versus-stereotactic-radiosurgery-for-brain-arteriovenous-malformations-a-matched-cohort-study
#10
Ching-Jen Chen, Dale Ding, Tony R Wang, Thomas J Buell, Adeel Ilyas, Natasha Ironside, Cheng-Chia Lee, M Yashar Kalani, Min S Park, Kenneth C Liu, Jason P Sheehan
BACKGROUND: Microsurgery (MS) and stereotactic radiosurgery (SRS) remain the preferred interventions for the curative treatment of brain arteriovenous malformations (AVM), but their relative efficacy remains incompletely defined. OBJECTIVE: To compare the outcomes of MS to SRS for AVMs through a retrospective, matched cohort study. METHODS: We evaluated institutional databases of AVM patients who underwent MS and SRS. MS-treated patients were matched, in a 1:1 ratio based on patient and AVM characteristics, to SRS-treated patients...
May 12, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29759670/systemic-octreotide-therapy-in-prevention-of-gastrointestinal-bleeds-related-to-arteriovenous-malformations-and-obscure-etiology-in-atrial-fibrillation
#11
Venkat Vuddanda, Mohammad-Ali Jazayeri, Mohit K Turagam, Madhav Lavu, Valay Parikh, Donita Atkins, Sudharani Bommana, Madhu Reddy Yeruva, Luigi Di Biase, Jie Cheng, Vijay Swarup, Rakesh Gopinathannair, Mojtaba Olyaee, Vijay Ivaturi, Andrea Natale, Dhanunjaya Lakkireddy
OBJECTIVES: The present study describes the use of octreotide (OCT) in patients with atrial fibrillation (AF) receiving oral anticoagulation (OAC) who have gastrointestinal (GI) bleeding related to arteriovenous malformations (AVMs), as well as its effect on OAC tolerance and subsequent rebleeding. BACKGROUND: AVMs cause significant GI bleeding, especially in patients with AF who are receiving OAC for stroke prevention. OCT has been shown to minimize recurrent GI bleeds related to AVMs...
December 11, 2017: JACC. Clinical Electrophysiology
https://www.readbyqxmd.com/read/29755904/radiation-induced-cavernous-malformation-as-a-late-sequelae-of-stereotactic-radiosurgery-for-epilepsy
#12
Ethan A Winkler, Caleb Rutledge, Mariann Ward, Tarik Tihan, Patricia K Sneed, Nicholas Barbaro, Paul Garcia, Michael McDermott, Edward F Chang
Stereotactic radiosurgery (SRS) is a promising treatment for medically intractable mesial temporal lobe epilepsy. SRS for epilepsy has had an acceptable safety profile with reports of radiation-induced vascular malformations confined to central nervous system pathologies with prominent angiogenesis - namely, primary brain tumors, metastases, and arteriovenous malformations. Theoretical risks for radiation-induced lesions following radiosurgery for epilepsy have yet to be established. Of 13 patients treated in a pilot trial for medial temporal lobe epilepsy, one developed multiple delayed radiation-induced cavernous malformations following radiosurgery...
March 11, 2018: Curēus
https://www.readbyqxmd.com/read/29753079/curative-transvenous-embolization-for-ruptured-brain-arteriovenous-malformations-a-single-center-experience-from-china
#13
Yingkun He, Weixing Bai, Tianxiao Li, Ferdinand K Hui, Yanyan He, Bin Xu
OBJECTIVE: To evaluate the feasibility and safety of transvenous embolization treatment for brain arteriovenous malformations (bAVM). METHODS: Between November 2016 and August 2017, a transvenous endovascular embolization protocol was implemented at the Henan Provincial People's Hospital for consecutive patients with ruptured bAVM. Therapeutic decision making was based on Spetzler-Martin grades, bAVM location, pattern of venous drainage, and angioarchitecture. And the transvenous embolization procedure was combined with transarterial support...
May 9, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29752992/radiosurgery-reduces-plasma-levels-of-angiogenic-factors-in-brain-arteriovenous-malformation-patients
#14
Ming Xu, Xiaoxia Liu, Guanghai Mei, Junjie Zhang, Weixing Wang, Hongzhi Xu
PURPOSE: Aberrant expression of angiogenic factors has been anecdotally documented in brain arteriovenous malformation (AVM) nidus vessels; however, no data is available on the effect of radiosurgery on the levels of angiogenic factors in AVM patients. We sought to determine the plasma contents of VEGF, TGF-β, Ang-2 and bFGF in 28 brain AVM patients at baseline and post radiosurgery and further analyzed the relationship between plasma contents of these angiogenic factors with clinicopathologic variables of these patients...
May 9, 2018: Brain Research Bulletin
https://www.readbyqxmd.com/read/29752186/midterm-and-long-term-results-of-ethanol-embolization-of-auricular-arteriovenous-malformations-as-first-line-therapy
#15
Chen Hua, Yunbo Jin, Xi Yang, Yun Zou, Tianyou Wang, Hao Gu, Congzhen Qiao, Zimin Zhang, Xiaoxi Lin
OBJECTIVE: The objective of this study was to assess the midterm and long-term results of patients with auricular arteriovenous malformations (AVMs) treated by ethanol embolization. METHODS: Medical records of 35 patients (20 male, 15 female; age range, 10-59 years) with auricular AVMs between 2006 and 2016 were reviewed. The short-term results of 4 of the 35 patients were reported in 2009. They were included in this study with updated follow-up data. The data from the 31 new included patients have not been reported previously...
May 8, 2018: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29751183/onyx-embolization-before-the-surgical-treatment-of-grade-iii-spetzler-martin-brain-arteriovenous-malformations-single-center-experience-and-technical-nuances
#16
S Luzzi, M Del Maestro, D Bongetta, C Zoia, A V Giordano, D Trovarelli, Dehcordi S Raysi, R J Galzio
BACKGROUND: grade-III Spetzler-Martin (SM) brain arteriovenous malformations (AVMs) are a specific set of AVMs with a high variability in terms of site, size, angioarchitecture, flow dynamics and involvement of eloquent areas. Surgery preceded by pre-operative embolization has been reported as a useful treatment option for these lesions. The aim of this study is to report outcomes and personal experience of combined pre-operative Onyx embolization and surgical resection on a consecutive series of grade-III brain AVMs...
May 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29750912/ras-signalling-in-energy-metabolism-and-rare-human-diseases
#17
REVIEW
L Dard, N Bellance, D Lacombe, R Rossignol
The RAS pathway is a highly conserved cascade of protein-protein interactions and phosphorylation that is at the heart of signalling networks that govern proliferation, differentiation and cell survival. Recent findings indicate that the RAS pathway plays a role in the regulation of energy metabolism via the control of mitochondrial form and function but little is known on the participation of this effect in RAS-related rare human genetic diseases. Germline mutations that hyperactivate the RAS pathway have been discovered and linked to human developmental disorders that are known as RASopathies...
May 8, 2018: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/29750679/reflections-on-50-years-of-neuroscience-nursing-the-growth-of-stroke-nursing
#18
Nancy Jackson, Elaine Haxton, Kathy Morrison, Erin Markey, Linda J Andreoli, Theresa Maloney, Nataliya Omelchenko, Amanda Aroose, Lynn B Stevens
Over the past 50 years, the Journal of Neuroscience Nursing (JNN) has grown from a neurosurgical focus to the broader neuroscience focus alongside the professional nursing organization that it supports. Stroke care in JNN focused on the surgical treatment and nursing care for cranial treatment of conditions such as cerebral aneurysm, carotid disease, arteriovenous malformation, and artery bypass procedures. As medical science has grown and new medications and treatment modalities have been successfully trialed, JNN has brought to its readership this information about recombinant tissue plasminogen activator, endovascular trials, and new assessment tools such as the National Institute of Health Stroke Scale...
May 10, 2018: Journal of Neuroscience Nursing: Journal of the American Association of Neuroscience Nurses
https://www.readbyqxmd.com/read/29747435/the-use-of-transarterial-approaches-in-peripheral-arteriovenous-malformations-avms
#19
REVIEW
Aditya Khurana, Patrick T Hangge, Hassan Albadawi, M-Grace Knuttinen, Sadeer J Alzubaidi, Sailendra G Naidu, J Scott Kriegshauser, Rahmi Oklu, Brian W Chong
Arteriovenous malformations (AVMs) are a subset of congenital vascular malformations (CVMs). They comprise abnormal connections between arterial and venous circulation; treatment approaches are dependent on the angioarchitecture of the AVM, specifically the number and arrangement of the feeder arteries and outflow veins. Various imaging modalities can be used to diagnose and plan treatment. Here we will review the use of transarterial approaches to treat AVMs.
May 9, 2018: Journal of Clinical Medicine
https://www.readbyqxmd.com/read/29747258/-the-auricle-arteriovenous-vascular-malformation-one-case-report
#20
J Y Zhang, W Y Wang, Q Q Zhang, H N Jiang
No abstract text is available yet for this article.
April 7, 2018: Zhonghua Er Bi Yan Hou Tou Jing Wai Ke za Zhi, Chinese Journal of Otorhinolaryngology Head and Neck Surgery
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