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https://www.readbyqxmd.com/read/28081266/human-extravillous-trophoblasts-penetrate-decidual-veins-and-lymphatics-before-remodeling-spiral-arteries-during-early-pregnancy
#1
Nannan He, Liesbeth van Iperen, Danielle de Jong, Karoly Szuhai, Frans M Helmerhorst, Lucette A J van der Westerlaken, Susana M Chuva de Sousa Lopes
In humans, the defective invasion of the maternal endometrium by fetal extravillous trophoblasts (EVTs) can lead to insufficient perfusion of the placenta, resulting in pregnancy complications that can put both mother and baby at risk. To study the invasion of maternal endometrium between (W)5.5-12 weeks of gestation by EVTs, we combined fluorescence in situ hybridization, immunofluorescence and immunohistochemistry to determine the presence of (male) EVTs in the vasculature of the maternal decidua. We observed that interstitial mononuclear EVTs directly entered decidual veins and lymphatics from W5...
2017: PloS One
https://www.readbyqxmd.com/read/28057275/anatomic-suitability-for-transcaval-access%C3%A2-based-on-computed-tomography
#2
REVIEW
Robert J Lederman, Adam B Greenbaum, Toby Rogers, Jaffar M Khan, Melissa Fusari, Marcus Y Chen
Transcaval access has been used successfully for over 200 transcatheter aortic valve replacements, large-bore percutaneous left ventricular assist devices, and thoracic endovascular aortic aneurysm repairs. This review teaches how to plan transcaval access and closure based on computed tomography. The main planning goals are to: 1) identify calcium-free crossing targets in the abdominal aorta along with optimal fluoroscopic projection angles and level with respect to lumbar vertebrae; 2) identify obstacles such as interposed bowel or pedunculated aortic atheroma; 3) plan covered stent bailout; and 4) identify jeopardized vascular branches such as renal arteries that might be obstructed by bailout covered stents if employed...
January 9, 2017: JACC. Cardiovascular Interventions
https://www.readbyqxmd.com/read/28040229/-macroscopic-hematuria-secondary-to-nutcracker-syndrome-and-successful-endovascular-treatment
#3
Carlos A Hinojosa, Javier E Anaya-Ayala, Estefanía Boyer-Duck, Hugo Laparra-Escareno, Adriana Torres-Machorro, Rene Lizola
BACKGROUND: Nutcracker syndrome is a rare entity, and in the majority of cases is the result of extrinsic compression of the left renal vein between the superior mesenteric artery and the aorta, associated with functional stenosis. OBJECTIVE: To present the case of a 19-year-old female with no significant medical history with confirmed diagnosed of nutcracker syndrome treated successfully by endovascular means. CLINICAL CASE: She was referred to the Vascular Surgery Department with a 6-month history of macroscopic haematuria, after other aetiologies were ruled out...
December 28, 2016: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/28011359/detection-of-a-rare-complication-of-endovascular-treatment-for-brain-avm-by-echocardiography
#4
Mozhgan Parsaee, Sedigheh Saedi, Sepideh Emami, Alireza Serati
A brain arteriovenous malformation (AVM) is a congenital malformation of the vascular system, in which an abnormal short circuit (vascular malformation) connects cerebral arteries and veins. When the brain AVMs are diagnosed, the majority of them must be closed with surgical or endovascular treatment; because only a small portion of the brain AVMs remain asymptomatic during the patient's life. Endovascular trans-arterial embolization using Onyx is a suitable method of treating brain AVMs. Previously known complications of onyx usage are bleeding and neurologic deficits...
December 21, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/27987612/magnetic-resonance-venography-and-three-dimensional-image-fusion-guidance-provide-a-novel-paradigm-for-endovascular-recanalization-of-chronic-central-venous-occlusion
#5
Adeline Schwein, Tony Lu, Ponraj Chinnadurai, Danai Kitkungvan, Dipan J Shah, Nabil Chakfe, Alan B Lumsden, Jean Bismuth
OBJECTIVE: Endovascular recanalization is considered first-line therapy for chronic central venous occlusion (CVO). Unlike arteries, in which landmarks such as wall calcifications provide indirect guidance for endovascular navigation, sclerotic veins without known vascular branching patterns impose significant challenges. Therefore, safe wire access through such chronic lesions mostly relies on intuition and experience. Studies have shown that magnetic resonance venography (MRV) can be performed safely in these patients, and the boundaries of occluded veins may be visualized on specific MRV sequences...
January 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/27935900/-thromboangiitis-obliterans-buerger-s-disease-state-of-the-art
#6
D D Zerbino, E A Zimba, N N Bagry
Thromboangiitis obliterans (Buerger's disease) is systemic vasculitis with predominant development of thrombotic occlusions of small-to-medium diameter arteries of distal portions of both upper and lower limbs. A distinctive feature of Buerger's disease from other vasculitides is the involvement of the venous bed into the pathological process in the form of migrating thrombophlebitis. The disease is encountered more often in young adult males, predominantly tobacco smokers. The clinical pattern is presented by symptoms of increasing insufficiency of blood supply of tissues of extremities...
2016: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/27932281/nutcracker-syndrome-a-rare-cause-of-left-flank-pain-that-can-also-manifest-as-unexplained-pelvic-pain
#7
Jean-Marie Berthelot, Frédéric Douane, Yves Maugars, Eric Frampas
Nutcracker syndrome (NCS) is symptomatic unilateral renal venous hypertension due to compression of the left renal vein between the superior mesenteric artery and aorta (anterior NCS) or between the aorta and spine (posterior NCS). The left ovarian or spermatic vein empties into the left renal vein and is an additional site of venostasis in about half the cases of NCS. The presenting symptom of NCS in about half the cases is atypical left flank pain suggesting a disorder of the lower ribs or thoracolumbar spinal junction, particularly as the pain worsens with standing and increased lumbar lordosis...
December 5, 2016: Joint, Bone, Spine: Revue du Rhumatisme
https://www.readbyqxmd.com/read/27822948/delayed-high-output-heart-failure-due-to-arteriovenous-fistula-complicated-with-herniated-disc-surgery
#8
Taeshik Park, Sang Ho Park, Alok Arora
A 36-year-old male presented with progressive exertional dyspnea over months. Physical examination showed jugular venous distension, lung crecipitations, femoral bruit and pitting pedal edema. Echocardiogram showed a dilated right ventricle with severe pulmonary hypertension and a non collapsing inferior vena cava (IVC). On right heart catheterization, IVC oxygen saturation was noted at 92% suggesting arterial mixing; a computed tomography of the abdomen showed a fistula between the right common iliac artery to the right common iliac vein at L4 level and a massive IVC; this was linked to trauma from a disectomy done 16 years ago at L4-L5 level...
December 2016: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27822118/the-danish-vascular-registry-karbase
#9
REVIEW
Nikolaj Eldrup, Charlotte Cerqueira, Louise de la Motte, Lisbet Knudsen Rathenborg, Allan K Hansen
AIM: The Danish Vascular Registry (DVR), Karbase, is monitoring arterial and advanced vein interventions conducted at all vascular departments in Denmark. The main aim of the DVR is to improve the quality of treatment for patients undergoing vascular surgery in Denmark by using the registry for quality assessment and research. STUDY POPULATION: All patients undergoing vascular interventions (surgical and endovascular) at any vascular department in Denmark are registered in the DVR...
2016: Clinical Epidemiology
https://www.readbyqxmd.com/read/27793619/patterns-in-the-management-of-acute-limb-ischemia-a-vess-survey
#10
Matthew R Smeds, Harleen K Sandhu, Samuel S Leake, Charles C Miller, Kristofer M Charlton-Ouw
BACKGROUND: Treatment strategies for acute limb ischemia (ALI) are abundant with few established guidelines. We sought to determine nationwide ALI treatment patterns in the modern era. METHODS: Anonymous electronic surveys examining the management of ALI involving native vessel and bypass occlusion were sent to all members of the Vascular and Endovascular Surgery Society (n = 738). Treatment options included catheter-directed lysis (CDL) or pharmacomechanical (PMT) thrombolysis and open surgery...
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27768661/direct-site-endovascular-repair-dser-a-novel-approach-to-vascular-trauma
#11
Anders J Davidson, Lucas P Neff, Joseph J DuBose, James B Sampson, Christopher M Abbot, Timothy K Williams
Peripheral vascular injuries carry significant risk for permanent functional impairment, limb loss, and death. Definitive correction of these injuries requires significant operative time and has traditionally been resource and skill set intensive. In the initial surgical treatment of the physiologically depleted trauma patient, faster techniques may prove more appropriate. Damage control techniques, including vascular shunting, rapidly restore distal flow but require additional vascular intervention and risk shunt thrombosis with prolonged use...
November 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27763266/predictive-factors-for-better-bypass-patency-and-limb-salvage-after-prosthetic-above-knee-bypass-reconstruction
#12
Eric Klingelhoefer, Hendrik Bergert, Stephan Kersting, Stefan Ludwig, Norbert Weiss, Frank Schönleben, Robert Grützmann, Gabor Gäbel
BACKGROUND: Peripheral arterial disease (PAD) is one of the most underestimated diseases because of its high prevalence and unfavorable prognosis. Many PAD patients without suitable autologous veins or options for endovascular treatment receive prosthetic above-knee femoropopliteal bypass (PAKB). Until now predictors of prosthetic bypass failure and of increased amputation risk remain indistinct. This study aimed to identify predictive factors associated with better bypass patency and limb salvage to achieve a more favorable outcome after PAKB reconstruction...
August 2016: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/27729606/-pediatric-iatrogenic-vertebral-arteriovenous-fistula-successfully-treated-with-endovascular-treatment-a-case-report
#13
Rintaro Yokoyama, Satoshi Iihoshi, Kei Miyata, Kentaro Toyama, Katsuya Komatsu, Masahiko Wanibuchi, Nobuhiro Mikuni
OBJECT: We report a relatively rare case of pediatric iatrogenic extradural vertebral arteriovenous fistula. CASE: A five-year-old boy with a history of multiple surgeries for Total Anomalous Pulmonary Venous Return(TAPVR)exhibited vascular engorgement of his right neck from about 4 years old. We thought that this was caused by his past operations. He demonstrated swollen blood vessels in the right neck and pulmonary hypertension with increased right heart load...
October 2016: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/27659372/a-decade-of-major-vascular-trauma-lessons-learned-from-gang-and-civilian-warfare
#14
M J Ramdass, P Harnarayan
INTRODUCTION Trinidad and Tobago is a trans-shipment point for the illegal trade of drugs, arms and ammunition and, as such, has a high incidence of gang-related warfare and drug-related crimes. This has led to a high incidence of gunshot and stab wounds, with associated major vascular injuries. We describe our management strategies learned from a decade of vascular trauma experience. METHODS A retrospective analysis of age, gender, type of trauma, vessel injured, procedure and outcome for all cases of vascular trauma between 2006 and 2015 at two surgical units in Trinidad and Tobago...
January 2017: Annals of the Royal College of Surgeons of England
https://www.readbyqxmd.com/read/27627775/-post-traumatic-pseudoaneurysm-of-the-anterior-tibial-artery-secondary-to-tibial-shaft-fracture-case-report
#15
J Gómez-Salazar, J Tovar-López, G Hernández-Rodríguez, H De la Concha-Ureta
Arterial pseudoaneurysm of the lower limb is an infrequent entity, particularly in the infrapopliteal segment. It is commonly associated to vascular repairs or follows a localized arterial lesion, a fracture or a surgical procedure. There is little information in Mexico about this entity in cases involving the anterior tibial artery, and secondary to trauma and osteosynthesis. Given that sudden bleeding due to rupture of the pseudoaneurysm is a possible catastrophic outcome for the viability of the segment, it is important to timely detect and diagnose the pseudoaneurysm...
January 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/27602890/direct-site-endovascular-repair-dser-a-novel-approach-to-vascular-trauma
#16
Anders J Davidson, Lucas P Neff, Joseph J Dubose, James B Sampson, Christopher M Abbot, Timothy K Williams
Peripheral vascular injuries carry significant risk for permanent functional impairment, limb loss, and death. Definitive correction of these injuries requires significant operative time and has traditionally been resource and skill set intensive. In the initial surgical treatment of the physiologically depleted trauma patient, faster techniques may prove more appropriate. Damage control techniques, including vascular shunting, rapidly restore distal flow, but require additional vascular intervention and risk shunt thrombosis with prolonged use...
September 16, 2016: Journal of Trauma and Acute Care Surgery
https://www.readbyqxmd.com/read/27568153/vascular-thoracic-outlet-syndrome
#17
Mohamad Anas Hussain, Badr Aljabri, Mohammed Al-Omran
Two distinct terms are used to describe vascular thoracic outlet syndrome (TOS) depending on which structure is predominantly affected: venous TOS (due to subclavian vein compression) and arterial TOS (due to subclavian artery compression). Although the venous and arterial subtypes of TOS affect only 3% and <1% of all TOS patients respectively, the diagnostic and management approaches to venous and arterial TOS have undergone considerable evolution due to the recent emergence of minimally invasive endovascular techniques such as catheter-directed arterial and venous thrombolysis, and balloon angioplasty...
2016: Seminars in Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/27531084/the-twin-evils-of-concomitant-rare-pathology-with-variant-anatomy-superior-mesenteric-artery-aneurysm-and-a-replaced-right-hepatic-artery
#18
Ailín C Rogers, Sandhya Chalasani, Anthony G Ryan, Keith Simon Cross, Morgan P McMonagle
Aneurysmal degeneration of the superior mesenteric artery (SMA) is a rare clinical finding, estimated to affect <1% of the general population in postmortem studies. Due to the rare prevalence of aneurysms affecting the SMA, there are no clear or definitive published consensus guidelines for its management at presentation, with both surgical and endovascular options described. An aberrant or replaced right hepatic artery (RRHA) is thought to affect 10-15% of the population. The prevalence of both conditions presenting concomitantly is unknown, but undoubtedly even rarer...
January 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/27489718/delayed-presentation-of-a-carotid-pseudoaneurysm-following-penetrating-neck-trauma
#19
Abdullah Alfawaz, Xiaoyi Li, Stefan Kénel-Pierre, Jane Yang, Jorge Rey, Handel Robinson
OBJECTIVE: Penetrating carotid trauma in a hemodynamically stable patient invariably presents with a pseudoaneurysm on initial imaging. Although extremely rare, delayed pseudoaneurysm formation has been reported. The purpose of this paper is to define this rare entity and propose a diagnostic and treatment plan. METHODS: We present a case of delayed presentation of carotid pseudoaneurysm following penetrating neck trauma. A systematic review of the literature was performed...
2016: SAGE open medical case reports
https://www.readbyqxmd.com/read/27462000/contemporary-comparison-of-aortofemoral-bypass-to-alternative-inflow-procedures-in-the-veteran-population
#20
James T McPhee, Arin Madenci, Joseph Raffetto, Michelle Martin, Naren Gupta
OBJECTIVE: Multiple vascular inflow reconstruction options exist for claudication, including aortofemoral bypass (AFB) and alternative inflow procedures (AIPs) such as femoral reconstruction with iliac stents, and femoral-femoral, iliofemoral, and axillofemoral bypass. Contemporary multi-institution comparison of these techniques is lacking. METHODS: The Veterans Affairs Surgical Quality Improvement Project (VASQIP) national database (2005-2013) was used to compare AFB vs AIP in a propensity-matched analysis...
December 2016: Journal of Vascular Surgery
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