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https://www.readbyqxmd.com/read/28323192/multimodality-management-of-spetzler-martin-grade-3-brain-arteriovenous-malformations-with-subgroup-analysis
#1
Isaac Josh Abecassis, John D Nerva, Abdullah Feroze, Jason Barber, Basavaraj V Ghodke, Louis J Kim, Laligam N Sekhar
INTRODUCTION: Spetzler-Martin grade 3 (SM3) lesions entail 4 distinct subtypes described based on size, eloquence, and deep venous drainage (DVD) (3A-3D). The ideal management of each is contentious, and the results of A Randomized Trial of Unruptured Brain AVMs (ARUBA) introduced additional controversy and attention towards management strategies of unruptured bAVMs. METHODS: We retrospectively reviewed 114 patients with treated SM3 bAVMs, including both ruptured and unruptured lesions...
March 18, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28317330/long-term-risk-of-venous-thromboembolism-recurrence-after-isolated-superficial-vein-thrombosis
#2
Jean-Philippe Galanaud, Marie-Antoinette Sevestre, Gilles Pernod, Susan R Kahn, Céline Genty, Hugo Terrisse, Dominique Brisot, Jean-Luc Gillet, Isabelle Quéré, Jean-Luc Bosson
BACKGROUND: Isolated superficial vein thrombosis (iSVT) (without concomitant deep vein thrombosis (DVT) or pulmonary embolism (PE)) is a frequent event but available data on long-term outcomes are scarce and retrospective. Therefore, we aimed to determine prospectively the risk and type of venous thromboembolic (VTE) recurrence after iSVT and compare it with that of proximal DVT. METHODS: Using data from the prospective, multicentre, observational, OPTIMEV study, we assessed at three years and after anticoagulants were stopped, the incidence and the type of VTE recurrence (iSVT/DVT/PE) of patients with a first objectively confirmed iSVT without cancer (n=285) and compared this to patients with a first proximal DVT without cancer (n=262)...
March 20, 2017: Journal of Thrombosis and Haemostasis: JTH
https://www.readbyqxmd.com/read/28316309/high-resolution-ct-angiogram-for-lower-extremity-vein-mapping
#3
Mark P Wright, Matthew R Smeds, Lonnie Wright, Ahsan T Ali
High-resolution CT angiogram (CTA) has replaced traditional diagnostic angiography as the main preoperative imaging modality for vascular surgery patients. Although the use of CTA is increasing for arterial imaging, it has not been used routinely for vein mapping. The goal of this study was to evaluate the accuracy of CTA for venous anatomy and compare it to a standard venous duplex ultrasound (DUS). When the vein was used for bypass, the quality and size of the vein were evaluated in the operating room. As part of a preoperative workup before lower extremity revascularization, 16 patients underwent a CTA followed by a DUS...
March 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28294663/-role-of-the-homograft-bypass-in-extremity-inferior-s-reconstructions
#4
Zsuzsa Nagy, Zoltán Oláh, Judit Kókai, Anna Barbara Molnár, Ágnes Laczkó, Gábor Viktor Szabó, Viktória Juhász, Dávid Garbaisz, Márton Berczeli, Zsófia Sztupinszky, Zoltán Szeberin
INTRODUCTION: Vascular homografts are used for limb salvage in cases of graft infection after previous reconstructive vascular surgery or inadequate autologous veins. During multi-organ donation the thoracic aorta segment, aortic bifurcation, iliac arteries, femoral arteries, popliteal arteries, femoral veins and greater saphenous veins can be harvested. Our aim was to optimize the use of homografts by analyzing the results of previous procedures. METHODS: The patient information was processed retrospectively, using the clinical computer system...
March 2017: Magyar Sebészet
https://www.readbyqxmd.com/read/28293489/a-novel-strategy-to-supercharge-a-deep-inferior-epigastric-artery-perforator-flap-after-port-a-cath-removal
#5
Chad M Teven, Adrian S H Ooi, David W Chang, David H Song
Autologous breast reconstruction using the deep inferior epigastric artery perforator (DIEP) flap has become increasingly popular because of its unique advantages. However, compared with some other forms of abdominal-based autologous reconstruction, DIEP flaps are associated with an increased risk of venous congestion. Many techniques-or lifeboats-have been introduced to diagnose and treat this potentially devastating complication. In this case report, we describe a novel strategy to augment venous drainage when venous congestion is encountered...
December 2016: Plastic and Reconstructive Surgery. Global Open
https://www.readbyqxmd.com/read/28289715/cerebrovascular-adaptations-to-cocaine-induced-transient-ischemic-attacks-in-the-rodent-brain
#6
Jiang You, Nora D Volkow, Kicheon Park, Qiujia Zhang, Kevin Clare, Congwu Du, Yingtian Pan
Occurrence of transient ischemic attacks (TIA) and cerebral strokes is a recognized risk associated with cocaine abuse. Here, we use a rodent model along with optical imaging to study cocaine-induced TIA and the associated dynamic changes in cerebral blood flow velocity (CBFv) and cerebrovasculature. We show that chronic cocaine exposure in mice resulted in marked cortical hypoperfusion, in significant arterial and venous vasoconstriction, and in a sensitized vascular response to an acute cocaine injection...
March 9, 2017: JCI Insight
https://www.readbyqxmd.com/read/28284885/predictors-of-recanalization-for-incompetent-great-saphenous-veins-treated-with-cyanoacrylate-glue
#7
Yiu Che Chan, Yuk Law, Grace C Cheung, Stephen W Cheng
PURPOSE: To determine predictors of recanalization in patients treated with endovenous cyanoacrylate. METHODS: Follow-up by serial clinical and duplex examinations was performed at 1 week, 1 month, 6 months, 12 months, and 24 months of 108 legs in 55 patients (21 men, median age 65 y) with primary varicose veins treated with endovenous cyanoacrylate. Cox regression analysis was used to examine venous characteristics before the procedure: diameter of great saphenous vein (GSV), treatment length of GSV, presence of incompetent perforators, clinical severity of varicose vein, and experience of operator as predictors of recanalization...
March 8, 2017: Journal of Vascular and Interventional Radiology: JVIR
https://www.readbyqxmd.com/read/28283902/what-is-the-ideal-route-of-administration-of-tranexamic-acid-in-tka-a-randomized-controlled-trial
#8
Sung Yup Lee, Suri Chong, Dhanasekaraprabu Balasubramanian, Young Gon Na, Tae Kyun Kim
BACKGROUND: TKA commonly involves substantial blood loss and tranexamic acid has been used to reduce blood loss after TKA. Numerous clinical trials have documented the efficacy and safety of intravenous (IV) or intraarticular (IA) use of tranexamic acid. Combined administration of tranexamic acid also has been suggested; however, there is no consensus regarding the ideal route of tranexamic acid administration. QUESTIONS/PURPOSES: (1) To compare the efficacy of tranexamic acid in terms of total blood loss and the allogeneic transfusion rate among three routes of administration: IV alone, IA alone, and combined IV and IA...
March 10, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28274833/investigating-the-spatiotemporal-characteristics-of-the-deoxyhemoglobin-related-and-deoxyhemoglobin-unrelated-functional-hemodynamic-response-across-cortical-layers-in-awake-marmosets
#9
Cecil Chern-Chyi Yen, Daniel Papoti, Afonso C Silva
Blood oxygenation level dependent (BOLD) functional magnetic resonance imaging (fMRI) has become a major tool to map neural activity. However, the spatiotemporal characteristics of the BOLD functional hemodynamic response across the cortical layers remain poorly understood. While human fMRI studies suffer from low spatiotemporal resolution, the use of anesthesia in animal models introduces confounding factors. Additionally, inflow contributions to the fMRI signal become non-negligible when short repetition times (TRs) are used...
March 6, 2017: NeuroImage
https://www.readbyqxmd.com/read/28272147/long-term-follow-up-of-flap-prefabrication-in-facial-reconstruction-13-years-experiences
#10
Weixin Wang, Muxin Zhao, Yong Tang, Wen Chen, Zhe Yang, Ning Ma, Lisi Xu, Jun Feng, Yangqun Li
BACKGROUND: Flap prefabrication is to turn a random flap into an axial flap by transferring a vascular pedicle. METHODS: In the past 13 years, we have prefabricated 20 flaps in 20 patients by the superficial temporal artery and its concomitant veins. Typically, a 50- to 800-mL tissue expander was implanted in the donor site. After flap maturation, the prefabricated flap was raised and transferred locally to cover the large defect on the face. All the cases were followed up regularly...
March 7, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28272123/reconstruction-of-moderate-sized-hand-defects-using-a-superficial-lateral-sural-artery-perforator-flap
#11
Xiao-Qing He, Yue-Liang Zhu, Jia-Zhang Duan, Xi Yang, Fanzhe Feng, Yong-Qing Xu
BACKGROUND: The skin on the lower leg has abundant perforators and, thus, is an excellent donor site for transplant tissue flaps. However, due to vascular variations and body positions, tissue flaps at the posterolateral proximal portion of the lower leg are rarely used for transplantation. This study reports our experience with the use of superficial lateral sural artery perforator (SLSAP) flaps in the repair of moderate-sized hand wounds. METHODS: From March 2012 to April 2015, the hand wounds of 15 patients were planned for repair using a superficial sural artery perforator flap...
April 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28266961/thoracic-manifestations-of-klippel-trenaunay-syndrome
#12
Mark M Hammer, Wallace T Miller
Klippel-Trenaunay syndrome (KTS) is a congenital disorder characterized by venous malformations and a predisposition to pulmonary embolism. We reviewed the imaging findings of 7 adult patients with KTS who underwent thoracic CT. While the superficial manifestations of KTS predominantly affect the extremities, patients frequently develop abnormalities of the pulmonary arterial system, particularly chronic thromboembolic pulmonary hypertension. Additionally, some patients are seen to develop pulmonary arteriolar aneurysms; the physiologic significance of this finding is unknown at this time...
March 6, 2017: Journal of Thoracic Imaging
https://www.readbyqxmd.com/read/28265013/absent-filling-of-ipsilateral-superficial-middle-cerebral-vein-is-associated-with-poor-outcome-after-reperfusion-therapy
#13
Sheng Zhang, Yangxiao Lai, Xinfa Ding, Mark Parsons, John H Zhang, Min Lou
BACKGROUND AND PURPOSE: Our aim was to study the effect of drainage of cortical veins, including the superficial middle cerebral vein (SMCV), vein of Trolard, and vein of Labbé on neurological outcomes after reperfusion therapy. METHODS: Consecutive ischemic stroke patients who underwent pretreatment computed tomographic perfusion and 24-hour computed tomographic perfusion or magnetic resonance perfusion after intravenous thrombolysis were included. We defined "absent filling of ipsilateral cortical vein" (eg, SMCV-) as no contrast filling of the vein across the whole venous phase on 4-dimensional computed tomographic angiography in the ischemic hemisphere...
March 6, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28260355/ultrasonography-of-the-lower-extremity-veins-anatomy-and-basic-approach
#14
Dong-Kyu Lee, Kyung-Sik Ahn, Chang Ho Kang, Sung Bum Cho
Ultrasonography is an imaging modality widely used to evaluate venous diseases of the lower extremities. It is important to understand the normal venous anatomy of the lower extremities, which has deep, superficial, and perforating venous components, in order to determine the pathophysiology of venous disease. This review provides a basic description of the anatomy of the lower extremity veins and useful techniques for approaching each vein via ultrasonography.
January 30, 2017: Ultrasonography
https://www.readbyqxmd.com/read/28255617/immobile-cerebral-veins-in-the-context-of-positional-brain-shift-an-undescribed-risk-factor-for-acute-subdural-hemorrhage
#15
Satoshi Tsutsumi, Hideo Ono, Yukimasa Yasumoto
BACKGROUND: Changes in head position are thought to cause a degree of brain shift in the intracranial cavity. However, little is known on the concurrent shift of the cerebral veins. The present study aimed to investigate the positional shift of the cerebral veins that accompanies brain shift. METHODS: Sagittal T2-weighted magnetic resonance imaging was performed on 21 consecutive patients lying in the supine and prone positions, using the same sequence. For each patient, imaging data were obtained for the two positions as a pair of images with morphologically best-matched cerebral contours...
March 3, 2017: Surgical and Radiologic Anatomy: SRA
https://www.readbyqxmd.com/read/28255445/a-failure-of-preoperative-duplex-imaging-to-diagnose-a-lower-extremity-venous-aneurysm-in-a-patient-with-severe-chronic-venous-insufficiency
#16
Roy Wesley Jones, Godfrey Ross Parkerson, Mary Ottinger, Eduardo Rodriguez, Brian Park
OBJECTIVE: We present a case of recurrent bilateral lower extremity venous stasis ulcers in association with a superficial venous aneurysm at the right saphenofemoral junction that was misdiagnosed on preoperative duplex scanning. METHODS: A 53-year-old female presented to our clinic with 6-year history of bilateral lower extremity venous stasis ulcers. Her past medical history was significant for refractory venous stasis ulcers of the bilateral lower extremities present for 6 years and morbid obesity...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28254548/brachio-brachial-arteriovenous-fistula-superficialization-with-short-skip-incisions
#17
António Norton de Matos, Clemente Neves Sousa, Paulo Almeida, José Queirós, Duarte Rego, Gabriela Teixeira, Luís Loureiro, Sérgio Teixeira
The exhaustion of superficial venous patrimony or reduced diameter of superficial veins usually prevent patients from having an arteriovenous fistula created. In such cases, utilizing deep vessels can be a more viable option as opposed to an arteriovenous graft. We describe a new approach for the brachio-brachial arteriovenous fistula creation technique. It consists of three small incisions, thus causing minimal surgical damage. We have found it to be better tolerated by the patients and well received by dialysis nurses...
February 27, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28236917/outcomes-of-native-superficial-femoral-artery-chronic-total-occlusion-recanalization-after-failed-femoropopliteal-bypass
#18
Mark G Davies, Hosam F El-Sayed
OBJECTIVE: When a bypass fails, the options are lysis, redo bypass, or endovascular intervention. If lysis of the original bypass is not considered an option, which is better-redo bypass or attempts at endovascular recanalization of the native system? This retrospective study examined the outcomes of native superficial femoral artery (SFA) chronic total occlusion (CTO) recanalization compared with redo bypass after failed femoropopliteal bypass. METHODS: Patients presenting with a symptomatic failed femoropopliteal bypass that underwent attempted CTO endovascular (EV) recanalization of the native SFA or a redo femoropopliteal bypass (BP) from 2000 to 2015 were analyzed...
March 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28221670/endophlebectomy-of-the-common-femoral-vein-and-arteriovenous-fistula-creation-as-adjuncts-to-venous-stenting-for-post-thrombotic-syndrome
#19
M A F de Wolf, H Jalaie, J H H van Laanen, R L M Kurstjens, M J S Mensinck, M J de Geus, A Gombert, R de Graaf, C H A Wittens
BACKGROUND: Good results have been reported for angioplasty and stenting of post-thrombotic lesions of the iliac and proximal femoral veins. If lesions at the origin of the superficial femoral and profunda veins are stented, the intraluminal synechiae can be pushed against the orifices of inflow vessels, potentially decreasing stent inflow. Surgical disobliteration of the common femoral vein (endophlebectomy) has been suggested to mitigate this problem. Because of a temporary increase in thrombogenicity, this procedure may be accompanied by arteriovenous fistula creation...
February 21, 2017: British Journal of Surgery
https://www.readbyqxmd.com/read/28219692/prevention-of-thromboembolic-complications-in-patients-with-superficial-vein-thrombosis-given-rivaroxaban-or-fondaparinux-the-open-label-randomised-non-inferiority-surprise-phase-3b-trial
#20
Jan Beyer-Westendorf, Sebastian M Schellong, Horst Gerlach, Eberhard Rabe, Jeffrey I Weitz, Katja Jersemann, Kurtulus Sahin, Rupert Bauersachs
BACKGROUND: Superficial-vein thrombosis can lead to deep-vein thrombosis and pulmonary embolism. Rivaroxaban, an oral factor Xa inhibitor, might simplify treatment compared with fondaparinux because it does not require daily subcutaneous injection and is cheaper. We compared efficacy outcomes in patients with superficial-vein thrombosis and additional risk factors given either rivaroxaban or fondaparinux to assess whether rivaroxaban is non-inferior to fondaparinux in the prevention of thromboembolic complications...
February 16, 2017: Lancet Haematology
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