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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/29780232/cerebral-arteriovenous-malformations-in-the-era-of-embolization-for-angiographic-cure-a-single-center-experience-in-egypt
#2
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
#3
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/29772407/total-laparoscopic-hysterectomy-for-endometriosis-and-an-arteriovenous-malformation
#4
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/29762746/microsurgery-versus-stereotactic-radiosurgery-for-brain-arteriovenous-malformations-a-matched-cohort-study
#5
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/29755904/radiation-induced-cavernous-malformation-as-a-late-sequelae-of-stereotactic-radiosurgery-for-epilepsy
#6
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
#7
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/29752186/midterm-and-long-term-results-of-ethanol-embolization-of-auricular-arteriovenous-malformations-as-first-line-therapy
#8
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
#9
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/29750679/reflections-on-50-years-of-neuroscience-nursing-the-growth-of-stroke-nursing
#10
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
#11
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/29728873/modern-radiosurgical-and-endovascular-classification-schemes-for-brain-arteriovenous-malformations
#12
REVIEW
Ali Tayebi Meybodi, Michael T Lawton
Stereotactic radiosurgery (SRS) and endovascular techniques are commonly used for treating brain arteriovenous malformations (bAVMs). They are usually used as ancillary techniques to microsurgery but may also be used as solitary treatment options. Careful patient selection requires a clear estimate of the treatment efficacy and complication rates for the individual patient. As such, classification schemes are an essential part of patient selection paradigm for each treatment modality. While the Spetzler-Martin grading system and its subsequent modifications are commonly used for microsurgical outcome prediction for bAVMs, the same system(s) may not be easily applicable to SRS and endovascular therapy...
May 4, 2018: Neurosurgical Review
https://www.readbyqxmd.com/read/29724428/acr-appropriateness-criteria-%C3%A2-first-trimester-vaginal-bleeding
#13
Douglas L Brown, Ann Packard, Katherine E Maturen, Sandeep Prakash Deshmukh, Kika M Dudiak, Tara L Henrichsen, Benjamin J Meyer, Liina Poder, Elizabeth A Sadowski, Thomas D Shipp, Lynn Simpson, Therese M Weber, Carolyn M Zelop, Phyllis Glanc
Vaginal bleeding is not uncommon in the first trimester of pregnancy. The majority of such patients will have a normal intrauterine pregnancy (IUP), a nonviable IUP, or an ectopic pregnancy. Ultrasound (US) is the primary imaging modality in evaluation of these patients. US, along with clinical observations and serum human chorionic gonadotropin levels, can usually distinguish these causes. Although it is important to diagnose ectopic pregnancies and nonviable IUPs, one should also guard against injury to normal pregnancies due to inappropriate treatment with methotrexate or surgical intervention...
May 2018: Journal of the American College of Radiology: JACR
https://www.readbyqxmd.com/read/29719554/pipeline-flex-embolization-of-flow-related-aneurysms-associated-with-arteriovenous-malformations-a-case-report
#14
Narlin B Beaty, Jessica K Campos, Geoffrey P Colby, Li-Mei Lin, Matthew T Bender, Risheng Xu, Alexander L Coon
Background: An estimated 0.1% of the population harbors brain arteriovenous malformations (AVMs). Diagnosis and workup of AVMs include thorough evaluation for characterization of AVM angioarchitecture and careful assessment for concomitant aneurysms. The presence of coexisting aneurysms is associated with an increased risk of intracranial hemorrhage, with a published risk of 7% per year compared to patients with AVMs alone with a risk of 3%. Comprehensive AVM management requires recognition of concomitant aneurysms and prioritizes treatment strategies to mitigate the aggregate risk of intracranial hemorrhage associated with AVM rupture in patients with coexisting aneurysms...
April 2018: Interventional Neurology
https://www.readbyqxmd.com/read/29718388/the-use-of-hypofractionated-radiosurgery-for-the-treatment-of-intracranial-lesions-unsuitable-for-single-fraction-radiosurgery
#15
Jim Zhong, Robert H Press, Jeffrey J Olson, Nelson M Oyesiku, Hui-Kuo G Shu, Bree R Eaton
Stereotactic radiosurgery (SRS) is commonly used in the treatment of brain metastases, benign tumors, and arteriovenous malformations (AVM). Single-fraction radiosurgery, though ubiquitous, is limited by lesion size and location. In these cases, hypofractionated radiosurgery (hfSRS) offers comparable efficacy and toxicity. We review the recent literature concerning hfSRS in the treatment of brain metastases, benign tumors, and AVMs that are poorly suited for single-fraction SRS. Published retrospective analyses suggest that local control rates for brain metastases and benign tumors, as well as the rates of AVM obliteration, following hfSRS treatment are comparable to those reported for single-fraction SRS...
April 28, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29707692/successful-surgical-resection-of-giant-arteriovenous-malformation-in-supraclavicular-fossa
#16
Kohei Horikawa, Hiroyuki Nishi, Naosumi Sekiya, Mitsutomo Yamada, Toshiki Takahashi
A 42-year-old woman with a large congenital giant arteriovenous malformation in the left supraclavicular fossa underwent surgical resection. Although endovascular treatment was initially planned, it was impossible to occlude the multiple feeding arteries (transverse cervical, clavicular branch of left internal mammary, thoracoacromial, anterior/posterior circumflex humeral), and the anatomy was difficult. After removal of the left clavicle, the arteriovenous malformation was exposed. Care was taken to not injure the brachial plexus, and each feeding artery was ligated, followed by division of the drainage veins...
June 2018: Journal of Vascular Surgery Cases and Innovative Techniques
https://www.readbyqxmd.com/read/29696173/safety-and-efficacy-of-endovascular-therapy-and-gamma-knife-surgery-for-brain-arteriovenous-malformations-in-china-study-protocol-for-an-observational-clinical-trial
#17
Hengwei Jin, Xiaochuan Huo, Yuhua Jiang, Xiaolong Li, Youxiang Li
Introduction: Brain arteriovenous malformations (BAVMs) are associated with high morbidity and mortality. The treatment of BAVM remains controversial. Microinvasive treatment, including endovascular therapy and gamma knife surgery, has been the first choice in many conditions. However, the overall clinical outcome of microinvasive treatment remains unknown and a prospective trial is needed. Methods: This is a prospective, non-randomized, and multicenter observational registry clinical trial to evaluate the safety and efficacy of microinvasive treatment for BAVMs...
September 2017: Contemporary Clinical Trials Communications
https://www.readbyqxmd.com/read/29693069/propranolol-as-a-potentially-novel-treatment-of-arteriovenous-malformations
#18
Jianyun Lu, Radean Anvari, Jinwei Wang, Jian Huang, Shiyao Pei, Yaping Xiang, Jinhua Huang, Zhaoqi Yin, Jing Chen, J Stuart Nelson, Wenbin Tan
No abstract text is available yet for this article.
May 2018: JAAD Case Reports
https://www.readbyqxmd.com/read/29680750/complete-resection-of-hypervascularised-extraventricular-neurocytoma-after-preoperative-embolisation
#19
Majed Katati, Isabel García, Clara Isabel Chamorro, Ángel Horcajadas, Alicia Hurtado, Carlos Sánchez, Benjamín Iañez, Enrique Saura, Ernesto García, Heriberto Busquier
A 13-year-old female arrived at the Emergency Department with a two-week history of headache, and bilateral papilloedema on examination. The initial study with CT and MRI showed a large multicystic left frontal mass with calcification surrounded by peripheral oedema, subacute intralesional bleeding and association of multiple large vessels. She was initially operated on in another centre where a subacute haematoma was found, evacuating to multiple vessels and arteriolised veins. Despite the earlier neuroimaging findings, arteriovenous malformation (AVM) was suspected, so she was referred to our centre for further treatment...
April 18, 2018: Neurocirugía
https://www.readbyqxmd.com/read/29675497/a-case-report-of-ggeneralized-uterine-arteriovenous-malformation-after-molar-pregnancy-in-an-infertile-woman
#20
Firoozeh Ahmadi, Somayeh Moukhah
Background: Uterine arteriovenous malformation (UAVM) is a rare vascular condition in reproductive age presented mostly with bleeding. Although this malformation is infrequent, it is potentially life-threatening. Transvaginal Doppler ultrasonography is a widely available, noninvasive and excellent diagnostic method. Case: The case is a 30-yr-old woman with a history of eight-yr infertility.following intrauterine insemination treatment, she had a molar pregnancy...
February 2018: International Journal of Reproductive Biomedicine (Yazd, Iran)
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