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Venous reflux

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https://www.readbyqxmd.com/read/28902326/microstructural-evaluation-by-confocal-and-electron-microscopy-in-thrombi-developed-in-central-venous-catheters
#1
Thabata Coaglio Lucas, Eliata Ester da Silva, Danilo Olzon Dionysio Souza, Amanda Rodrigues Dos Santos, Maristela Oliveira Lara
OBJECTIVE: Evaluating thrombi microstructure developed in central venous catheters using confocal and electron microscopy. METHOD: An experimental, descriptive study carrying out a microstructural evaluation of venous thrombi developed in central venous catheters using Scanning Electron Microscopy and Confocal Laser Scanning Microscopy. RESULTS: A total of 78 venous catheters were collected over a period of three months. Different fibrin structures were distinguished: fibrin plates, fibrin network, and fibrin fibers...
August 28, 2017: Revista da Escola de Enfermagem da U S P
https://www.readbyqxmd.com/read/28895368/gestational-lower-limb-edema-and-venous-reflux-in-healthy-primigravidae
#2
Leandro A Gardenghi, Nei R Dezotti, Marcelo B Dalio, Edwaldo E Joviliano, Carlos E Piccinato
BACKGROUND: Analyze the association of lower limb edema with venous reflux in healthy primigravidae during pregnancy and in the postpartum. METHODS: Cohort with primigravidae evaluated in the three trimesters of pregnancy and postpartum. Edema was assessed by physical examination. Duplex evaluated venous reflux in both limbs. RESULTS: In the first trimester, no woman presented edema or venous reflux. In the second trimester, venous reflux was found in one patient (5%) and edema was found in four women (20%)...
September 11, 2017: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/28882716/remote-thoracic-myelopathy-from-a-spinal-dural-arteriovenous-fistula-at-the-cranio-cervical-junction-case-report-and-review-of-literature
#3
Michael J Lang, Stavropoula Tjoumakaris, Robert H Rosenwasser, Pascal Jabbour
BACKGROUND: The cranio-cervical junction is a rare location for spinal dural arteriovenous fistulas (dAVF). Typically, fistulas at this location present with findings related to intracranial cortical venous reflux or with cervical myelopathy. We present a case of cranio-cervical junction dAVF with isolated clinical and radiographic findings of thoracolumbar myelopathy. CASE DESCRIPTION: A 54 year-old male presented with subacute onset of lower extremity weakness, paresthesias and gait dysfunction...
September 4, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28857674/pelvic-venous-reflux-in-males-with-varicose-veins-and-recurrent-varicose-veins
#4
Emma B Dabbs, Scott J Dos Santos, Irenie Shiangoli, Judith M Holdstock, David Beckett, Mark S Whiteley
Objectives To report on a male cohort with pelvic vein reflux and associated primary and recurrent lower limb varicose veins. Methods Full lower limb duplex ultrasonography revealed significant pelvic contribution in eight males presenting with bilateral lower limb varicose veins. Testicular and internal iliac veins were examined with either one or a combination of computed tomography, magnetic resonance venography, testicular, transabdominal or transrectal duplex ultrasonography. Subsequently, all patients received pelvic vein embolisation, prior to leg varicose vein treatment...
January 1, 2017: Phlebology
https://www.readbyqxmd.com/read/28854778/nocturnal-leg-symptoms-are-not-associated-with-specific-patterns-of-superficial-venous-insufficiency
#5
Lisa F Fronek, Nisha J Bunke, Helane S Fronek
BACKGROUND: Certain nocturnal symptoms such as leg cramping (LC) and restless leg symptoms (RLS) are found in patients with venous disease.1 This study investigates the relationship between nocturnal symptoms and anatomic locations of superficial venous insufficiency. METHODS: A retrospective review of 371 consecutive patients presenting to a venous disease practice over a 1-year period was conducted. Patients underwent comprehensive assessment including standardized duplex scans...
August 30, 2017: International Angiology: a Journal of the International Union of Angiology
https://www.readbyqxmd.com/read/28835886/early-experience-of-transilluminated-cryosurgery-for-varicose-vein-with-saphenofemoral-reflux-review-of-84-patients-131-limbs
#6
Kwang Yong Kim, Ji Won Kim
PURPOSE: Varicose veins with great saphenous vein (GSV) insufficiency is prevalent. Among various surgical treatments for varicose veins, cryosurgery of GSV is an alternative minimally invasive technique that could leave fewer scars and replace conventional stripping with ambulatory phlebectomy. This study sought to assess outcomes including efficacy and safety of cryosurgery for varicose veins. METHODS: One hundred thirty-one limbs in 84 patients (37 male, 47 female; mean age, 53...
August 2017: Annals of Surgical Treatment and Research
https://www.readbyqxmd.com/read/28835832/suprapubic-varicose-vein-formation-during-pregnancy-following-pre-pregnancy-pelvic-vein-embolisation-with-coils-without-any-residual-pelvic-venous-reflux-or-obstruction
#7
Emma Dabbs, Jaya L Nemchand, Mark S Whiteley
Suprapubic varicose veins are usually indicative of unilateral iliac vein occlusion and venous collateralisation. We report two cases of suprapubic varicose veins following pelvic vein embolisation and subsequent pregnancy; both presented without residual pelvic venous reflux or pelvic venous obstruction. In both cases, there was no significant flow in the suprapubic veins indicating that they were not acting as a collateral post-pregnancy. One patient had this venous abnormality treated successfully with TRansluminal Occlusion of Perforators, followed by foam sclerotherapy to the main part of the suprapubic vein...
2017: SAGE open medical case reports
https://www.readbyqxmd.com/read/28818211/evaluation-of-thrombolysis-using-tissue-plasminogen-activator-in-lower-extremity-deep-venous-thrombosis-with%C3%A2-concomitant-femoral-popliteal-venous-segment%C3%A2-involvement
#8
Mayin Lin, John C F Hsieh, Mian Hanif, Alan McDaniel, David K Chew
OBJECTIVE: Current guidelines recommend thrombolytic therapy for iliofemoral deep venous thrombosis (DVT). Anticoagulation is the standard treatment for femoral-popliteal and tibial-level DVT. The objective of this study was to evaluate the efficacy of catheter-directed thrombolysis (CDT) using tissue plasminogen activator vs standard anticoagulation alone in patients with lower extremity DVT involving the femoral-popliteal segment. METHODS: A retrospective review was performed of patients referred to the vascular surgery service with lower extremity DVT from 2006 to 2015...
September 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28803414/laparoscopic-reversal-of-mini-gastric-bypass-to-original-anatomy-for-severe-postoperative-malnutrition
#9
Laurent Genser, Antoine Soprani, Malek Tabbara, Jean-Michel Siksik, Jean Cady, Sergio Carandina
PURPOSE: Malnutrition after mini-gastric bypass (MGB) is a rare and dreaded complication with few data available regarding its surgical management. We aim to report the feasibility, safety, and results of laparoscopic reversal of MGB to normal anatomy (RMGB) in case of severe and refractory malnutrition syndrome after intensive nutritional support (SRMS). METHODS: A 10-year retrospective chart review was performed on patients who underwent RMGB (video included) for SRMS following MGB...
August 12, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28803169/stereotactic-radiosurgery-for-dural-arteriovenous-fistulas-without-cortical-venous-reflux
#10
Daniel A Tonetti, Bradley A Gross, Brian T Jankowitz, Kyle M Atcheson, Hideyuki Kano, Edward A Monaco, Ajay Niranjan, L Dade Lunsford
BACKGROUND: The rationale for treatment of dural arteriovenous fistulas (dAVF) without cortical venous reflux is symptomatic resolution. Most studies of dural arteriovenous fistula treatment, including those for stereotactic radiosurgery (SRS), have focused on angiographic obliteration instead of clinical symptomatic outcome. METHODS: The authors evaluated their institutional experience with SRS for cerebral dAVFs without cortical venous reflux from 1991 to 2016, evaluating angiographic and clinical outcomes, focusing on the course of pulsatile tinnitus and/or ocular symptoms after treatment...
August 9, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28797741/modelling-and-simulation-of-flow-and-agglomeration-in-deep-veins-valves-using-discrete-multi-physics
#11
M Ariane, W Wen, D Vigolo, A Brill, F G B Nash, M Barigou, A Alexiadis
The hemodynamics in flexible deep veins valves is modelled by means of discrete multi-physics and an agglomeration algorithm is implemented to account for blood accrual in the flow. Computer simulations of a number of valves typologies are carried out. The results show that the rigidity and the length of the valve leaflets play a crucial role on both mechanical stress and stagnation in the flow. Rigid and short membranes may be inefficient in preventing blood reflux, but reduce the volume of stagnant blood potentially lowering the chances of thrombosis...
July 29, 2017: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/28780402/correlation-of-aggressive-intracranial-lesions-and-venous-reflux-patterns-in-dural-arteriovenous-fistulas
#12
Lei Huang, Liang Ge, Gang Lu, Daoying Geng, Xiaolong Zhang, Wenjie Cao
OBJECTIVE: The association between venous reflux patterns with aggressive intracranial lesions (AILs) including intracranial edema (IE), intraparenphymal hemorrhage (IPH) and subarachnoid hemorrhage (SAH) has not been well established in cranial dural arteriovenous fistulas (DAVFs). We aimed to propose an updated classification system using venous drainage. MATERIALS AND METHODS: We retrospectively assessed the catheter angiographic findings of venous drainage patterns...
August 2, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28739473/a-defined-protocol-to-resolving-cannulation-failure-during-endovenous-ablation-procedures
#13
Scarlett Hao, Samantha Cox, Thomas S Monahan, Tanya Flohr, Rajabrata Sarkar
During endovenous ablation for the treatment of insufficient veins, failure to cannulate the entirety of the refluxing vein with the treatment catheter prevents technically successful ablation. In this technique report, we describe a defined protocol to overcome cannulation failure of axial veins for endovenous ablation. This protocol utilizes commonly available adjunctive techniques including ultrasound-guided digital compression, the use of a guidewire, the use of a guide catheter, and placement of a second puncture site in a step-wise fashion to overcome varying degrees of tortuosity or obstruction...
July 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28728467/a-potential-therapeutic-pitfall-in-the-treatment-of-venous-reflux-due-to-variant-planar-anatomy-of-varicose-segments
#14
Sinan Deniz, Derya Tureli, Burcu Akpinar, Levent Oguzkurt
Purpose To elaborate on a planar anatomic variant of great saphenous vein as a potential therapeutic pitfall in the treatment of venous reflux. Materials and methods Lower extremity veins in 568 limbs with great saphenous vein insufficiency were sonographically mapped. A rather overlooked variation, the saphenous bow, was studied with emphasis on anatomic clarification and its involvement in venous insufficiency. Results This variation, observed in 5.1% (n = 29) of limbs, comprised two segments; one uninterrupted great saphenous vein proper coursing throughout saphenous compartment and one extra-compartmental segment originating distally from and proximally fusing with it...
January 1, 2017: Phlebology
https://www.readbyqxmd.com/read/28722300/digital-subtraction-angiography-dynavision-in-pretreatment-planning-for-embolization-of-dural-arterio-venous-fistulas
#15
Alex Botsford, Jai Jai Shiva Shankar
BACKGROUND AND PURPOSE: We have found DSA-Dynavision with multiplanar reconstruction very helpful in understanding the complex anatomy and planning of treatment of carotico-cavernous fistulas. The purpose of our study was to examine whether using DSA-Dynavision in pretreatment planning results in better outcome after endovascular treatment of dural arterio-venous fistulas (dAVFs). METHODS: Patients with dAVF treated with endovascular embolization were retrospectively identified from our interventional neuroradiology database...
July 19, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/28720741/-transvenous-embolization-by-direct-puncture-of-the-superior-sagittal-sinus-using-indocyanine-green-icg-videoangiography-for-treatment-of-dural-arteriovenous-fistula-of-the-transverse-sigmoid-sinus-a-case-report
#16
Jo Matsuzaki, Kenichi Kono, Arisa Umesaki, Yojiro Kashimura, Hiroaki Matsumoto, Tomoaki Terada
We report a case of dural arteriovenous fistula at the left transverse sinus and sigmoid sinus(TS-dAVF), which was treated with transvenous embolization(TVE)by direct puncture of the superior sagittal sinus(SSS)under indocyanine green(ICG)fluoroscopic guidance. A 71-year-old woman presented with pulsatile tinnitus and progressive dementia. A left TS-dAVF with retrograde SSS and cortical venous reflux(Cognard type IIb)was demonstrated on cerebral angiography. The left internal jugular vein and distal portion of the right transverse sinus were occluded...
July 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/28707962/towards-an-individualized-management-strategy-for-patients-with-chronic-venous-disease-results-of-a-delphi-consensus
#17
S K van der Velden, R R van den Bos, O Pichot, T Nijsten, Mgr De Maeseneer
Objective To obtain consensus on management criteria for symptomatic patients with chronic venous disease (CVD; C2-C6) and superficial venous reflux. Method We used a Delphi method by means of 36 statements sent by email to experts in the field of phlebology across the world over the course of three rounds. The statements addressed criteria for different venous treatments in patients with different characteristics (e.g. extensive comorbidities, morbid obesity and peripheral arterial disease). If at least 70% of the ratings for a specific statement were between 6 and 9 (agreement) or between 1 and 3 (disagreement), experts' consensus was reached...
January 1, 2017: Phlebology
https://www.readbyqxmd.com/read/28697961/fifteen-year-results-of-radiofrequency-ablation-using-vnus-closure-for-the-abolition-of-truncal-venous-reflux-in-patients-with-varicose-veins
#18
M S Whiteley, I Shiangoli, S J Dos Santos, E B Dabbs, T J Fernandez-Hart, J M Holdstock
OBJECTIVES: Endovenous thermal ablation (EVTA) of varicose veins was introduced in the late 1990s with radiofrequency ablation (RFA) using the VNUS Closure device. The results of the original VNUS Closure device for the abolition of truncal venous reflux at 15 years are reported. METHODS: A prospective audit of a group of patients treated with VNUS Closure 15 years previously was carried out, using clinical assessment and duplex ultrasound. A total of 189 patients were treated with VNUS Closure between March 1999 and December 2001 and were invited for clinical assessment (subjective and objective) and duplex ultrasonography (DUS) to assess treatment outcome and de novo disease progression...
July 8, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28691032/jugular-venous-reflux-is-associated-with-perihematomal-edema-after-intracerebral-hemorrhage
#19
Hao Feng, Hongxia Zhang, Wen He, Jian Zhou, Xingquan Zhao
The purpose of this study was to determine whether jugular venous reflux (JVR) is associated with perihematomal edema (PHE) in individuals with intracerebral hemorrhage (ICH). Patients with spontaneous supratentorial ICH within 72 h of symptom onset were enrolled. Baseline brain computed tomography (CT) scan was performed, with a follow-up CT examination at 12 ± 3 days after onset. Jugular venous color Doppler ultrasound was performed at 12 ± 3 days after onset to examine the JVR status. A total of 65 patients with ICH were enrolled...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28682127/factors-influencing-the-choice-of-treatment-modality-for-individual-patients-with-varicose-veins
#20
B Campbell, N Chinai, P Hollering, H Wright, R McCarthy
INTRODUCTION There is evidence of effectiveness for a range of different treatment modalities for varicose veins but limited information about factors that influence treatment choice for individual patients. METHODS A postal survey was sent to 438 UK members of the Vascular Society of Great Britain and Ireland. RESULTS Overall, 251 responses were received (response rate 57%). A total of 222 respondents treated varicose veins using conventional surgery (84%), endothermal ablation (82%) and foam sclerotherapy (68%)...
July 6, 2017: Annals of the Royal College of Surgeons of England
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