Search Results
Results 251 - 300 of 1151
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Minamoto Kanji - - 2007
We present a case of primary lung cancer with a rare distribution pattern of left inferior pulmonary vein (PV), encountered in the thoracoscopic left lower lobectomy. Thoracoscopic observation revealed 2 trunks of inferior PV (ventral and dorsal branch) at the stem level. The ventral trunk consisted of a branch of ...
Schmedt Claus-Georg - - 2007
This study evaluated the ability of endovascular optical coherence tomography (eOCT) to detect qualitative tissue alteration and quantitative changes of vein wall thickness and vein lumen diameter comparing endovenous radiofrequency ablation (RFA) and endovenous laser therapy (ELT) in an established ex vivo model. Endoluminal eOCT was performed by means of ...
Labropoulos Nicos - - 2007
Endovenous ablation is a newer therapy for treating superficial veins in patients with chronic venous disease. The saphenous veins and their accessory veins can be treated. Radiofrequency and laser energy are used to ablate the veins. Accurate ultrasound mapping is needed to plan and perform these procedures. The length and ...
Creton D - - 2007
AIM: To evaluate the clinical results of embolisation of symptomatic, incompetent pelvic veins in women presenting with perineal veins. PATIENTS AND METHODS: Twenty-four women presenting with non-saphenous perineal varicose veins and who experienced pelvic vein syndrome were treated. Symptoms was scored on a visual analogue scale assessing dyspareunia, pelvic and ...
Salik Erez - - 2007
PURPOSE: To define the three-dimensional anatomy of the left central veins and the implication for left-sided dialysis catheter placement. MATERIALS AND METHODS: Images from 30 consecutive patients undergoing computed tomography (CT) pulmonary angiography were reconstructed to depict the central venous anatomy. The reconstructed images were analyzed for parameters that could ...
Theivacumar N S - - 2007
INTRODUCTION: Reflux in the GSV due to sapheno-popliteal incompetence associated with ascending (paradoxical) reflux in the Giacomini vein is a rare but well described pattern of reflux. Treatment of this type of reflux is controversial and only surgical treatment has been described. REPORT: We describe 2 patients in whom this ...
Lee Hwa Yeon - - 2007
Aneurysm of the internal jugular vein is an extremely rare condition. It is usually detected during childhood and is characterized by being more prominent during Valsalva maneuvers such as vomiting, coughing, and straining. Most of the cases reported in the English literature are fusiform aneurysms of the internal jugular vein. ...
Cronin Paul - - 2007
RATIONALE AND OBJECTIVES: To document the frequency of normal and anomalous drainage patterns of the pulmonary veins, and to establish normal values for pulmonary vein ostial diameters, and distance to first bifurcation using multidetector computed tomography, as pertinent to ablation procedures for atrial fibrillation. MATERIALS AND METHODS: Two cardiothoracic radiologists ...
Loukas M - - 2007
The branching pattern and adequacy of the internal thoracic veins (ITV) are important factors, providing useful information on the availability of vessels and their appropriateness as an option for anastomoses in plastic and reconstructive surgery. During 100 cadaveric examinations of the anterior thoracic wall it was observed that ITVs were ...
Gonzalez Adriano Miziara - - 2007
In this paper, the authors evaluate if the use of a venous drainage system in the cava vein (instead of the external iliac vein) presents differences in pancreatic transplantation. Between December 2000 and 2004, 105 pancreas-kidney transplants were performed. Patients in group A (n=49) underwent complete liberation of the right ...
Modi Manisha
Internal jugular vein is the preferred route for central venous cannulation because of easy accessibility and high success rate. Arterial puncture is the most common complication, the reported incidence being 9.3&#x0025;. However, brachial plexus palsy following arterial puncture is a rare complication of this procedure. We report a case of ...
Casey William J WJ - - 2007
BACKGROUND: The internal mammary and thoracodorsal vessels are the standard recipient sites in microsurgical breast reconstruction. We review our series of venous outflow alternatives when these vessels are inadequate or unusable. MATERIALS AND METHODS: A retrospective review of all free breast reconstructions was performed from July 2003 through December 2005. ...
Date Taro - - 2007
BACKGROUND: Although the pulmonary veins have been demonstrated to play an important role in initiating and perpetuating atrial fibrillation, the role that cardiac muscle tissue in the pulmonary veins plays regarding the formation of P wave remains to be elucidated. We sought to clarify the contribution of pulmonary vein cardiac ...
Mattassi R - - 2007
The marginal vein, an abnormal superficial vein of the lateral lower limb, is a remnant of primitive embryonic vessels that have failed to regress. According to the extent, topography and sites of connection with the deep veins, five types have been distinguished by Weber. The marginal vein is valveless and ...
Szasz Theodora - - 2007
Reactive oxygen species (ROS) are by-products of oxygen metabolism, normally present in low levels inside cells, where they participate in signaling processes. The delicate balance in the continuous cycle of ROS generation and inactivation is maintained by enzymatic and nonenzymatic endogenous systems. Overwhelming production of ROS (by such sources as ...
Uchino I J - - 2007
BACKGROUND: Endovenous procedures have been proven effective in treating axial vein reflux. This report describes a new application, namely endovenous laser therapy of the incompetent perforating vein of the leg. OBJECTIVE: To explore an alternative option for treatment of incompetent perforating vein of the leg. METHODS & MATERIALS: An 80-year-old ...
Skandalos I - - 2007
OBJECTIVE: Description of our technique for the insertion of long-term tunneled cuffed hemodialysis (HD) catheters via the external jugular vein. METHODS: From December 1999 to August 2006, 357 long-term tunneled cuffed HD catheters were inserted in 308 patients, who were referred to us from various hospitals and clinics in Greece. ...
O'Donnell T F TF - - 2007
The small saphenous vein (SSV) and other veins in the popliteal fossa merit little discussion in the literature or in didactic programmes regarding their role in chronic venous insufficiency (CVI) and, in this sense, they are neglected. The purpose of this review is to present both duplex ultrasound findings and ...
Raines J K - - 2007
Traditional surgical ligation and stripping for the treatment of saphenous vein incompetence has been replaced by minimally invasive alternative treatments during the last five years. Endovenous ablation with radiofrequency (RP) and laser (EVL) have proven to be safe, durable, and widely accepted by patients. Catheter-delivered sclerotherapy (CDS) with foam and ...
Honma Satoru - - 2007
A right single preureteric inferior vena cava (IVC) was found in the cadaver of a 77-year-old Japanese male during a student dissection course at Kumamoto University School of Medicine in 2003. The ureter emerged from the lower end of the hilum of the right kidney at the second lumbar vertebral ...
Satheesha N B - - 2007
The testis is an important organ upon which the survival of the human species depends. Any compression of testicular artery may lead to loss of gametogenesis and hormone production. We found a left testicular artery entrapped between two divisions of a left renal vein in an approximately 50 year old ...
Padmanabhan K - - 2007
Internal jugular vein ectasia (dilatation of the internal jugular vein) is a rare clinical entity, often undiagnosed. Usually it presents as an asymptomatic, soft, compressible neck swelling that increases in size on Valsalva's manoeuvre. Our report describes right internal jugular vein ectasia in a 15-year-old girl who presented to us ...
Morita Satoru - - 2007
Physiological flow direction of ascending lumbar vein (ALV) is not well recognized. Two-dimensional time-of-flight magnetic resonance angiography (MRA) examinations of the lower extremities in 44 patients and venography (MRV) in 59 patients were retrospectively reviewed. chi(2) analysis was used to compare the frequency of ALV detection between the MRA and ...
Maskey Dhiraj - - 2006
Facial region has enormous blood supply. The maxillary vein, facial vein and superficial temporal vein are chief venous draining channels. There are numerous reports of unusual venous system of face, in the present case, retromandibular vein divides into anterior and posterior division soon after its formation, external carotid artery lying ...
Uddin Muhammad Azeem - - 2006
Cerebral venous system can be divided into a superficial and a deep system. The. superficial system comprises of sagittal sinuses and cortical veins and these drain superficial surfaces of both cerebral hemispheres. The deep system comprises of lateral sinus, straight sinus and sigmoid sinus along with draining deeper cortical veins. ...
Nasir Serdar - - 2006
In microsurgical training, the femoral vein is used frequently for a microvenous anastomosis model. But the femoral vein in the rat does not completely simulate the human vein because of its thin wall, fragility, and tendency to collapse. These anatomic characteristics cause some difficulty in carrying out anastomoses in microsurgery ...
Abeles Deborah - - 2006
This study was conducted to characterize the coordinated molecular changes evoked in the structure and composition of the wall of a venous segment when exposed to fistula flow. An arteriovenous shunt was created in adult C57BL/6J mice. Remodeled veins and contralateral control jugular veins were isolated 7 days after surgery. ...
Fabian Flora Masumbuo - - 2006
This is an observation of anomaly of the jugular veins system bilaterally. Both right and left external jugular veins drained into the subclavian veins. The right anterior jugular vein drained into the confluence of internal jugular and the subclavian veins as they join to form the right brachiocephalic vein. The ...
Jin Lee Jeong - - 2006
PURPOSE: The aim of this study was to find a new external landmark for internal jugular vein (IJV) catheterization. METHODS: The locations of the right IJVs of 100 patients were examined by ultrasonography using the external jugular vein and the cricoid cartilage as landmarks, and in a clinical study, we ...
Hayreh S S - - 2006
The anatomy of the orbital vascular bed is highly complex, with tremendous interindividual variations. The main source of blood supply to the orbit is by the ophthalmic artery, the first branch of the internal carotid artery. The origin, course, and branches of the ophthalmic artery, and the genesis of the ...
D'Cruz Ivan A - - 2006
The echocardiographic literature contains very scant reference to incompetence of the valve in the internal jugular vein. However, we found frequent Doppler evidence of such incompetence, especially in patients with congestive failure. This incompetence manifests as a variety of color Doppler and pulsed Doppler patterns, illustrated here in 3 patients.
Wang Ralph - - 2006
Carotid artery injury is a serious complication of landmark-guided internal jugular catheterization. Studies have determined that the internal jugular vein (IJV) frequently overlaps the carotid artery (CA), which has been postulated to increase the rate of arterial injury. The purpose of this study was to define the anatomic relationship of ...
D'Souza Estelle S - - 2006
Ehlers-Danlos syndrome (EDS) type IV is a rare connective tissue disorder associated with thin-walled, friable arteries and veins predisposing patients to aneurysm formation, dissection, fistula formation, and vessel rupture. Azygos vein aneurysm is an extremely rare condition which has not been reported in association with EDS in the literature. We ...
Djedovic Gabriel - - 2006
This report describes a case of a venous annulus of the left external iliac vein. Above the inguinal ligament the external iliac vein divides into two branches, which are interlinked by a communicating branch, forming two loops. The first loop is situated around the external iliac artery, the second loop ...
Nayak B Satheesha - - 2006
Knowledge of variations of veins of head and neck in relation to external jugular, anterior jugular, internal jugular, and facial veins is important to surgeons doing head and neck surgery as well as to radiologists doing catheterization and to clinicians in general. In the current case, multiple variations in the ...
Falk Abigail - - 2006
The purpose of this study was to evaluate the use of the brachiocephalic vein as an alternative access site for the insertion of tunneled hemodialysis catheters in patients with occluded jugular veins. Placement of brachiocephalic catheters for central venous access is safe and provides an alternative access in patients with ...
Hahn Hyun Oun - - 2006
Over a 15-year period (August, 1988 to May 2003), the authors have carried out 510 replantations of amputated fingertips distal to the nail base (zone I) in 450 patients, with a high overall survival rate (92 percent), using combinations of arterial and venous anastomoses without any alternative methods such as ...
Hong Charles C CC Developmental Biology Laboratory, Cardiovascular Research Center, Massachusetts General Hospital, Charlestown, Massachusetts 02129, and Department of Medicine, Harvard Medical School, Boston, Massachusetts 02115, - - 2006
Angioblasts are multipotent progenitor cells that give rise to arteries or veins . Genetic disruption of the gridlock gene perturbs the artery/vein balance, resulting in generation of insufficient numbers of arterial cells . However, within angioblasts the precise biochemical signals that determine the artery/vein cell-fate decision are poorly understood. We ...
López-Quiñones Miguel - - 2006
We describe the case of a 68-year-old woman who presented with an arteriovenous fistula (AVF) between the common carotid artery and internal jugular vein following several failed attempts of right jugular catheter insertion. Sonographic examination revealed an AVF between both vessels with a high-velocity turbulent flow inside and an arterialized ...
Bilbao José I - - 2006
Embolization is a remarkably versatile procedure used in nearly all vascular and nonvascular systems to treat a wide range of pathology. The published literature is rich with studies demonstrating the enormous therapeutic potential offered by embolization procedures, and the possibilities continue to expand with the advent of new embolization agents ...
Pieri S - - 2006
PURPOSE.: Male varicocele is a clinical dysfunction caused by a pathological venous reflux. Knowledge of anatomic variants of the internal spermatic vein confluence is fundamental for the technical success of percutaneous treatment. While numerous studies have analysed the phlebographic anatomy of the left internal spermatic vein, no exhaustive description exists ...
Cardinot T M - - 2006
During regular dissection of the retroperitoneal region, three uncommon anatomical variations of the internal iliac veins were found on dissected specimens: in the first case, the internal iliac veins converge forming a common trunk draining into the left external iliac vein. In the other two cases, the internal iliac vein ...
Koc Zafer - - 2006
OBJECTIVE: To correlate right ovarian vein (ROV) variations that drain into the right renal vein (RRV) with the presence of pelvic varices. MATERIALS AND METHODS: Routine abdominal multidetector-row computed tomography scans of 324 women were analyzed for the presence and type of ROV variations in this retrospective study. The subjects ...
Schröder Hobe J - - 2006
OBJECTIVE: The objective of the study was the catheterization of vessels in fetal sheep under ultrasound control. STUDY DESIGN: A catheter with guiding wire was introduced into the external jugular vein or carotid artery and advanced caudally. RESULTS: The aorta and umbilical vein could be accessed. CONCLUSION: Major segments of ...
Covassin L D - - 2006
Recent evidence indicates a specific role for vascular endothelial growth factor a (Vegfa) during artery development in both zebrafish and mouse embryos, whereas less is known about signals that govern vein formation. In zebrafish, loss of vegfa blocks segmental artery formation and reduces artery-specific gene expression, whereas veins are largely ...
Zócalo Yanina - - 2006
Factors that explain the different results among veins, and causes of the superior performance of vein grafts for small arterial reconstructions, remain unclear. The aim was to compare the biomechanical behavior of veins and arteries from different regions and sizes under arterial conditions. In vitro pressure and diameter were measured ...
Karygiannis M N MN Department of Neuroradiology and Therapeutic Angiography, Hôpital Lariboisière, Paris, France - - - 2006
We describe three cases of transvenous embolization of arteriovenous fistulas of the cavernous sinus, achieved through the facial vein approach. The facial vein was catheterized from a jugular vein access. This cervical approach offered good stability to the guiding catheter that permitted us to negotiate difficult curves of the facial ...
Ardeshiri Ardavan - - 2006
The cerebral venous outflow consists of the superficial system and the deep draining system. The deep one drains the areas of the great vein of Galen, the two basal veins of Rosenthal, and their tributaries. Simultaneous obstruction of these veins can effect great harm. In the case of obstruction of ...
Hsu G-L - - 2006
To evaluate the quantity of penile veins for use as patch material for the treatment of penile curvature, we devised two formulas: from the calculus of applied civil engineering and a diagram from the goniometry of the cadavers' penises, respectively, and the techniques for their application. From March 1995 to ...
Ekrem Dogan, Reha Erkoç, ...
Internal jugular vein cannulation has become the preferred approach for temporary vascular access for hemodialysis. Internal jugular vein cannulation is associated with a high rate of successful catheter placement. However, significant complications such as internal carotid artery (ICA) puncture, vessel erosion, thrombosis and infection can occur. We present one case ...
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