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Li Li - - 2011
Platelet-derived growth factor (PDGF) has been implicated in the pathogenesis of arterial atherosclerosis and venous neointimal hyperplasia. We examined the effects of PDGF isoforms on smooth muscle cells (SMCs) from arterial and venous origins in order to further understand the differential responsiveness of these vasculatures to proliferative stimuli. Serum-starved human ...
Roosenhoff Tamara P A - - 2010
The use of minimized extracorporeal circuits (MECC) in cardiac surgery is expanding. These circuits eliminate volume storage and bubble trap reservoirs to minimize the circuit. However, this may increase the risk of gaseous micro emboli (GME). To reduce this risk, a venous bubble trap was designed. This study was performed ...
Zamboni P - - 2010
Chronic cerebrospinal venous insufficiency (CCSVI) is a syndrome characterized by stenosies of the internal jugular and/or azygous veins (IJVs-AZ) with opening of collaterals and insufficient drainage proved by reduced cerebral blood flow and increased mean transit time in cerebral MRI perfusional study. The present review is aimed to give a ...
van Bemmelen Paul S - - 2011
To determine the prevalence of foot vein incompetence in a group of patients with chronic venous insufficiency and to assess the association of this, with venous ulceration located on the forefoot. A total of 20 consecutive patients (21 limbs) with active or healed venous ulceration was prospectively studied with duplex ...
Voisard Rainer - - 2010
The effectiveness of human saphenous vein grafting is limited by hyperplasia of the vessel wall. The current paper reports on a pulsed perfused venous human organ culture model (pp-venous HOC-model) with a Windkessel function. Saphenous vein grafts from 21 patients undergoing coronary bypass grafting were cultured either in venous or ...
Weir Bryce - - 2010
From the earliest pathological studies the perivenular localization of the demyelination in multiple sclerosis (MS) has been observed. It has recently been suggested that obstructions to venous flow or inadequate venous valves in the great veins in the neck, thorax and abdomen can cause damaging backflow into the cerebral and ...
Benabu Yves - - 2010
We present a case of a symptomatic venous aneurysm that developed in the drainage network of a deep-seated basal ganglia and thalamic arteriovenous malformation. The venous aneurysm was treated selectively with platinum coils using a venous approach.
Rinehart Sarah - - 2011
Computed tomographic (CT) coronary angiography provides a noninvasive method for coronary plaque detection and quantification, but data are limited on reproducibility of a quantitative evaluation. Intrarater and interrater reliability of a semiquantitative and highly standardized, fully quantitative approach was evaluated in 480 coronary segments in 30 patients. Quantitative vessel-wall and ...
Saleh Ablaa Mohamed - - 2010
The authors conducted a prospective study in order to evaluate the effect'of concave rib osteotomy on pulmonary function, in the context of posterior instrumentation for the treatment of idiopathic scoliosis. Concave rib osteotomy improves the flexibility of the spine, especially in very rigid curves above 70. Seventy-eight consecutive children with ...
Owens Christopher D CD Division of Vascular and Endovascular Surgery, University of California, San Francisco, CA 94143-0222, USA. - - 2010
The maturation of an arteriovenous fistula (AVF) requires remodeling of the arterial inflow and the venous outflow limbs to sustain flows sufficient to support hemodialysis. However, factors influencing remodeling of AVF are poorly understood. We hypothesized that AVF remodeling was an endothelium-dependent process. This is a prospective cohort study of ...
Rizvi Meesam - - 2010
Anomalous connections between an extracranial venous sac and intracranial dural sinuses through dilated diploic and emissary veins of the skull result in sinus pericranii (SP). In this study, two patients with the rare presentation of multiple, congenital SP with associated dural venous lakes and venous anomalies are described. In one ...
Ito Hiroshi - - 2010
We have previously reported the importance of adequate and precise arterial anastomosis and the hypothesis that, up to subzone III, fingertip amputation salvage can be achieved on arterial anastomosis alone. These findings were reported during the meeting of the Japanese Society of Reconstructive Microsurgery. This is our follow-up report with ...
Khan Zahid Hussain - - 2010
Arterial blood gas analysis is an iatric component factor in the clinical evaluation of patients, but arterial puncture has many complications. Our study aimed to determine a correlation between arterial and venous blood gas values. A prospective comparison of 200 samples from 100 patients undergoing lumbar disc surgery was conducted. ...
Pearl Monica - - 2010
Vein of Galen arteriovenous malformations (VGAM) are rare intracranial vascular lesions mostly involving young children. Endovascular therapy is the current standard of care. Albeit interventional techniques have greatly reduced the once dismal vital and functional prognoses previously associated with these lesions, the treatment of VGAMs remains a complex therapeutic challenge. ...
Musani Muzammil H - - 2011
Venous gangrene is a rare complication of deep venous thrombosis. It is certain from review of literature that there is a significant causative relationship between malignant disease and venous gangrene. Data from the National hospital discharge survey from 1979 to 2006 showed that 0.43% of patients with deep venous thrombosis ...
Sizarov Aleksander - - 2010
BACKGROUND: Various congenital malformations and many abnormal rhythms originate from the venous pole of the heart. Because of rapid changes during morphogenesis, lack of molecular and lineage data, and difficulties in presenting complex morphogenetic changes in the developing heart in a clear fashion, the development of this region in human ...
Nishijima Haruo - - 2011
Intracranial venous congestion is a rare condition in hemodialysis patients with central venous occlusion. We report a patient with cerebral venous infarction resulting from high reflex flow into the cranium induced by an arteriovenous hemodialysis shunt in the arm and occlusion of the brachiocephalic vein. This case illustrates that abnormal ...
Oishi Scott N - - 2010
Patients with large venous malformations are at risk for deep venous thrombosis and pulmonary embolus. Currently, there is no general consensus on the proper treatment for these patients. We present 3 preadolescent patients with large upper extremity venous malformations, who developed deep venous thrombosis; 2 had documented pulmonary emboli, one ...
Comerota Anthony J - - 2010
Chronic postthrombotic occlusion of the iliofemoral venous segments produces severe morbidity, which can be alleviated if venous drainage is restored. The common femoral vein (CFV) cannot always be fully recanalized with percutaneous endovenous techniques alone. We report the technique combining operative endovenectomy and patch venoplasty of the CFV with intraoperative ...
Raybaud Charles - - 2010
The brain vascular system develops in such a way that it continuously adapts the supply of oxygen and other nutrients to the needs of the parenchyma. To accompany the developing brain vesicles, it evolves in several steps: superficial meningeal network first; intraventricular choroid plexuses which determine the arterial pattern; penetrating ...
Savard Martin - - 2010
BACKGROUND: In Canada, ancillary tests, such as selective four vessels angiography (S4VA), are sometimes necessary for brain death (BD) diagnosis when the clinical exam cannot be completed or confounding factors are present. Recent Canadian guidelines assert that brain death is supported by the absence of arterial blood flow at the ...
Chou Chih-Wei - - 2010
During zebrafish embryogenesis, the endothelium signals to emergent bilateral interrenal primordia to converge toward the midline, yet the merged interrenal tissue has been found to be situated lateral to the midline. We show in this study that bilateral interrenal tissue clusters fused at the central midline, before relocating laterally to ...
Talbot Simon G - - 2010
Wound coverage with pedicled (local, regional, or distant) or free flaps is commonplace throughout plastic surgery. However, irrespective of the method of tissue transfer or type of tissue being transferred, inflow and outflow remain key parameters for success. Much has been written detailing complex tissue transfers and delineating arterial and ...
Gillespie David - - 2010
Recent advances in the treatment of venous insufficiency have led to an increased utilization of venous ultrasonography by practitioners. Knowing the fundamentals of anatomy and physiology are essential to be successful. This article reviews the common uses of ultrasonagraphy for the examination of the lower extremity venous system.
Wu Wei-wei - - 2010
We report a ruptured venous aneurysm, an unusual complication of venous arterialization for lower limb ischemia in Buerger's disease. Arteriovenous shunt ligation and aneurysm resection were performed successfully, with the distal limb perfusion preserved. By our very limited experience, venous arterialization may be ineffective on improving lower limb ischemia with ...
Passari G - - 2010
Retroperitoneal leiomyosarcoma arising in, or involving, the inferior vena cava or the iliac vein are infrequent tumours. They are usually treated by "en-block" surgery. Venous reconstruction is usually not needed, since collateral circulation can adequately offset the main vessel flow. However, in rare cases, collateral circulation may be insufficient. The ...
Obladen Michael - - 2010
A human being born without heart and head, i.e., the acardius/acranius malformation, has been described since antiquity. Superstition and fear made it a mystical disorder, a sign of God's wrath. The inquisition ruled that acranic infants should not be baptized and located the soul in the brain. Acardia was not ...
Umeoka Shigeaki - - 2010
PURPOSE: To evaluate whether the accuracy of local extension (T-staging) of esophageal carcinoma could be improved with addition of arterial phase images by use of multi-detector row computed tomography. MATERIALS AND METHODS: The institutional review board approved this study, and all the subjects provided informed consent. Dual-phase (the arterial and ...
Leavens Teresa L - - 2010
Nanomaterials are increasingly playing a role in society for uses ranging from biomedicine to microelectronics, however pharmacokinetic studies, which will be necessary for human health risk assessments, are limited. Tissue distribution, one component of pharmacokinetics, can be assessed by quantifying arterial extraction of materials in an isolated perfused porcine skin ...
Lee A B - - 2010
The truncular venous malformation (VM) represents an embryologically defective vein where developmental arrest has occurred during the vascular trunk formation period in the 'later stage' of the embryonic development. A relatively simple truncular VM lesion such as a venous web at the hepatic venous outlet causes portal hypertension giving a ...
Morgan Mary Anne M - - 2010
Nitric oxide deficiency may contribute to microvascular dysfunction in sepsis. Current physiologic paradigms contend that nitrite and/or S-nitrosohemoglobin mediate intravascular delivery of nitric oxide. These nitric oxide metabolites are purportedly consumed during hemoglobin deoxygenation, producing nitric oxide and coupling intravascular nitric oxide delivery with metabolic demand. Systemic nitrite and S-nitrosohemoglobin ...
Silva A M V - - 2010
Microalbuminuria in Type 2 diabetes is associated with arterial endothelial dysfunction, but the venous bed was never evaluated. To study the endothelial function in the venous and arterial bed in patients with Type 2 diabetes with normoalbuminuria or microalbuminuria. We evaluated 28 patients with Type 2 diabetes, glycated hemoglobin (HbA1c) ...
Numajiri Toshiaki - - 2011
The vascular supercharge (additional microvascular anastomosis) has rarely been used for free flaps, and the blood circulation in the transferred tissue has not been recorded. We have made double vascular anastomoses during free jejunal transfer to reduce the possibility of loss of the flap from vascular occlusion. To evaluate the ...
Lang Irene - - 2010
Chronic thromboembolic pulmonary hypertension (CTEPH) comprises organizing thrombotic obstructions in the pulmonary arteries. While roughly 40% of CTEPH cases are not preceded by a venous thromboembolic event, 0.1-5.1% of acute pulmonary thromboemboli evolve into organized obstructions of the pulmonary artery. In patients with predominantly proximal disease, surgical pulmonary endarterectomy provides ...
Stolz Erwin - - 2010
The aim of this study was to analyse the cerebral venous outflow in relation to the arterial inflow during a Valsalva manoeuvre (VM). In 19 healthy volunteers (mean age 24.1 +/- 2.6 years), the middle cerebral artery (MCA) and the straight sinus (SRS) were insonated by transcranial Doppler sonography. Simultaneously ...
Corley Gavin J - - 2010
The presence of a venous pumping mechanism in the foot may be significant for venous return in the lower extremities. However, there has been a lack of conclusive research in the area to date and controversy still exists over the detailed anatomy and physiologic mechanism of the venous foot pump. ...
Sadr Amir H - - 2010
Isolated venous aneurysms of the foot are rare. We report a case of venous aneurysm of the dorsal venous arch of the foot with an unusual traumatic etiology. This is a case report of a female patient with a gradually enlarging swelling on the dorsum of her foot located over ...
Jandali Shareef S Division of Plastic Surgery, University of Pennsylvania Health System, 3400 Spruce Street, 10 Penn Tower, Philadelphia, PA 19104, USA. - - 2010
Microvascular anastomosis is one of the more critical aspects of free flap surgery. A safe, effective, and expedient method for venous anastomosis minimizes flap ischemia time, is easier on the surgical team, and saves costly operating room time. The authors report on their experience using the Synovis microvascular anastomotic coupling ...
Scaramuzzi R J RJ Department of Veterinary Basic Sciences, Royal Veterinary College, North Mimms, Hertfordshire AL9 7TA, UK. - - 2010
Two experiments were carried out on ewes with ovarian autotransplants to estimate the ovarian uptake of glucose and production of lactate. The first was carried out in the luteal phase of the oestrous cycle. Samples of carotid arterial, ovarian venous and jugular venous blood were collected simultaneously for glucose analysis. ...
Sode Birgitte F - - 2010
RATIONALE: Idiopathic interstitial pneumonia is characterized by pulmonary fibrosis and high mortality. OBJECTIVES: We examined the association between ever-diagnosed venous thromboembolism and risk of incident idiopathic interstitial pneumonia. Venous thromboembolism was taken as a proxy for a procoagulant state in an individual. METHODS: We conducted a study of the entire ...
Key Nigel S NS Harold R. Roberts Distinguished Professor, Division of Hematology/Oncology, Department of Medicine, 932 Mary Ellen Jones Bldg, CB #7035, Chapel Hill, NC 27599, USA. - - 2010
Venous thromboembolism, comprising deep vein thrombosis and pulmonary embolism, is a common disorder with at least 250 000 new events occurring each year in the United States alone. Treatment of venous thromboembolism includes anticoagulation, which is achieved initially with the use of a parenterally administered agent followed by a more ...
Hussey A J - - 2010
Replantation of an avulsed ear was completely successful with only arterial repair (to the superficial temporal artery) and the use of medicinal leeches.
Sharma Jayendra - - 2010
A newborn with antenatal diagnosis of fetal hydrops at 36 wk of gestation, presented with congestive heart failure (CHF) and generalized edema. Computed tomographic angiography showed marked dilatation of cerebral duro-venous system including vein of Galen (VOG), straight sinus, torcula and transverse sinus without evidence of arteriovenous fistulae at the ...
Maempel Julian Fz - - 2010
Venous thromboembolism is a very common pathological process for which there are many well known (and less well-known) predisposing factors. Likewise, olanzapine is a commonly used anti-psychotic medication.We present the case of a young Somali gentleman who developed venous thromboembolic disease after an overdose of olanzapine. The diagnosis was only ...
Lim Chung S - - 2010
INTRODUCTION: This paper aims to summarize the scientific rationale and future perspectives in the development of effective matrix metalloproteinase (MMP) modulators in the management of patients with arterial and venous disease. METHODS: Pubmed, Embase and Cinahl databases were searched using the search terms 'MMP', 'matrix metalloproteinase', 'arterial disease', 'venous disease', ...
Enajat Morteza - - 2010
BACKGROUND: Venous complications have been reported as the more frequently encountered vascular complications seen in the transfer of deep inferior epigastric artery (DIEA) perforator (DIEP) flaps, with a variety of techniques described for augmenting the venous drainage of these flaps to minimize venous congestion. The benefits of such techniques have ...
Courtney D Mark - - 2010
Prediction rules for pulmonary embolism use variables explicitly shown to estimate the probability of pulmonary embolism. However, clinicians often use variables that have not been similarly validated, yet are implicitly believed to modify probability of pulmonary embolism. The objective of this study is to measure the predictive value of 13 ...
Rozin Alexander P - - 2010
An idea of arteriovenous shunts (AVS) was proposed for explanation of dynamic regulation of oxygenation and venous hyperoxia. A formula enabling calculation of AVS and real CO2 production has recently been derived by comparing data of arterial and venous blood gases. Regarding venous hyperoxia, there is a need to differentiate ...
Lim S M SM Lahey Clinic Medical Center; Burlington, MA, USA - - - 2009
Spinal dural arteriovenous fistulas (AVFs) are rare vascular malformations in the spinal dura, fed by dural branches of the radicular arteries, and drain primarily into intradural venous plexuses. They may cause elevated medullary venous pressure and produce a progressive myelopathy. We describe a case of AVF in the epidural space ...
Yeh Poh-Shiow - - 2010
Venous hypertension in lateral sinuses resulting from dural arteriovenous fistula (DAVF) and venous sinus thrombosis (VST) can manifest with severe neurological deficits, such as infarction or intracerebral hemorrhage. It has been proved that venous hypertension plays a significant role in the evolution and progression of DAVF and VST. The definite ...
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