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Artykuły w czasopismach na temat „Veins”

Autor: Grafiati

Data publikacji: 4 czerwca 2021

Data aktualizacji: 25 lipca 2025

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1

Ardeshiri, Ardavan, Ardeshir Ardeshiri, Jennifer Linn, Jörg-Christian Tonn, and Peter A. Winkler. "Microsurgical anatomy of the mesencephalic veins." Journal of Neurosurgery 106, no. 5 (2007): 894–99. http://dx.doi.org/10.3171/jns.2007.106.5.894.

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Object The mesencephalic veins drain crucial brainstem areas. Due to the narrowness of the tentorial notch, these veins can become obstructed as a result of herniation or surgery, leading to hemorrhage and severe consequences for the patient. There is little in the literature about the mesencephalic veins. The aim of this study was to perform an exact analysis of their microanatomy. Methods Fifty-two cadaveric hemispheres were examined under an operating microscope, and measurements were made with a digital caliper. The authors focused on the basal vein (BV), pontomesencephalic vein (PMV), ped

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Rusyn, V. I., F. M. Pavuk, M. I. Borsenko, N. M. Popovych, and V. V. Rusyn. "Varicose veins in the anterior accessory great saphenous vein system of the lower limb." Modern medical technology 17, no. 2 (2025): 108–14. https://doi.org/10.14739/mmt.2025.2.324994.

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Aim. In order to improve the results of the treatment of patients with varicose veins and to prevent the recurrence of the disease, a quantitative analysis of the types of varicose veins in the anterior accessory great saphenous vein (GSV) system should be carried out according to the source of their reflux. Materials and methods. In the vascular department of the Transcarpathian regional hospital named after A. Novak in Uzhhorod, we treated 3000 patients with varicose veins of the subcutaneous veins of the lower extremities in 2018–2025. Varicose veins in the anterior accessory great saphenou

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Maloor, P., S. Nayak, D. Reghunathan, S. Shetty, and G. Prabhu. "Multiple variations of azygos system of veins: a case report." Journal of Morphological Sciences 34, no. 01 (2017): 007–9. http://dx.doi.org/10.4322/jms.097715.

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AbstractAzygos venous system drains the venous blood from thoracic wall. Knowledge of variations of its course and tributaries is important to cardiothoracic surgeons, radiologists and orthopedic surgeons. We observed the following variations in the azygos veins. Both azygos and hemiazygos veins were formed by union of lumbar azygos and subcostal veins of corresponding sides. The ascending lumbar vein did not drain into the azygos system. The hemiazygos vein had a larger diameter than the lower part of azygos vein and it joined azygos vein at the level of seventh thoracic vertebra. Accessory h

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Belcaro, G., A. N. Nicolaides, G. Laurora, et al. "Laser Doppler Flux in the Venous Wall." Phlebology: The Journal of Venous Disease 11, no. 2 (1996): 68–72. http://dx.doi.org/10.1177/026835559601100208.

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Objectives: To evaluate in vivo the perfusion of the venous wall in normal veins, varicose veins and in femoral veins of post-phlebitic limbs recording wall flux with laser Doppler flowmetry. As there is some evidence that both structure and microcirculatory dynamic responses are altered in the abnormal vein wall, we also aimed to study the response of vein wall perfusion to locally induced vasodilatation following papaverine infusion. Design: Open prospective study in patients with venous insufficiency and in patients undergoing coronary revascularization with a normal venous system. Setting:

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Gillet, JL, M. Lausecker, M. Sica, JM Guedes, and FA Allaert. "Is the treatment of the small saphenous veins with foam sclerotherapy at risk of deep vein thrombosis?" Phlebology: The Journal of Venous Disease 29, no. 9 (2013): 600–607. http://dx.doi.org/10.1177/0268355513497362.

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Objective To assess the deep vein thrombosis risk of the treatment of the small saphenous veins depending on the anatomical pattern of the veins. Method A multicenter, prospective and controlled study was carried out in which small saphenous vein trunks were treated with ultrasound-guided foam sclerotherapy. The anatomical pattern (saphenopopliteal junction, perforators) was assessed by Duplex ultrasound before the treatment. All patients were systematically checked by Duplex ultrasound 8 to 30 days after the procedure to identify a potential deep vein thrombosis. Results Three hundred and thi

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6

Yan, Li, Jinyuan Tang, Xiaoxuan Hu, et al. "Imbalance in matrix metalloproteinases and tissue inhibitor of metalloproteinases from splenic veins and great saphenous veins under high hemodynamics." Phlebology: The Journal of Venous Disease 35, no. 1 (2019): 18–26. http://dx.doi.org/10.1177/0268355519842432.

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Objectives Varicose vein is a common disorder involving extensive venous dilation and remodeling, yet the underlying mechanism is unclear. Studies have shown increased expression of matrix metalloproteinases in human varicose veins and animal models of venous hypertension. We investigated the differences in matrix metalloproteinases and tissue inhibitor of metalloproteinases from human splenic veins and great saphenous veins under high hemodynamics. Methods Seventy-two human diseased splenic vein, splenic vein, varicose great saphenous vein, and great saphenous vein specimens were collected. T

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Tong, Y., and J. Royle. "Recurrent Varicose Veins Following High Ligation of Long Saphenous Vein: A Duplex Ultrasound Study." Cardiovascular Surgery 3, no. 5 (1995): 485–87. http://dx.doi.org/10.1177/096721099500300508.

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Duplex scanning was used to study recurrent varicose veins in 244 limbs with previous high ligation of the long saphenous vein. The recurrent varicose veins were classified into two types according to the presence or absence of a residual long saphenous vein. Varicose veins with a residual long saphenous vein (type I) occurred in 168 limbs (68.9%). A residual long saphenous vein with an incompetent saphenofemoral junction was present in 125 limbs and one without any residual saphenofemoral junction in 43 limbs. Besides the presence of an incompetent long saphenous vein in this group, an incomp

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Kun, Li, Li Ying, Wang Lei, et al. "Dysregulated apoptosis of the venous wall in chronic venous disease and portal hypertension." Phlebology: The Journal of Venous Disease 31, no. 10 (2016): 729–36. http://dx.doi.org/10.1177/0268355515610237.

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Introduction The etiology of varicose veins remains elusive. We hypothesized that abnormal cell cycle events in the vein wall may contribute to changes in the structural integrity, thus predisposing to the development of varicosities. The present study was designed to determine whether or not the same molecular apoptotic pathway exists between great saphenous and splenic veins. Methods Thirty-six samples of diseased splenic veins and varicose great saphenous veins were collected. Twenty-five samples of control splenic and great saphenous veins were also collected. The apoptotic cell proteins e

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Povelitsa, E. А., O. V. Parhomenko, V. A. Rohko, et al. "Surgical treatment of androgenital manifestations of pelvic vein disease." Medical and Biological Problems of Life Activity, no. 2 (October 1, 2024): 127–35. https://doi.org/10.58708/2074-2088.2024-2(32)-127-135.

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The main clinical androgenital manifestations of pelvic vein disease in men were represented by venogenic erectile dysfunction (ED), primary and secondary varicose veins of the superficial and deep veins of the penis, varicocele, hematospermia, hematuria, and chronic pelvic pain syndrome (CPPS). The criteria for choosing the method of surgical correction of venogenic ED were the following: terminal blood flow velocity, the presence or absence of retrograde blood flow in the deep vein of the penis, the diameter of the vein, the presence of pelvic varicose veins, the presence or absence of venou

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Dabbs, Emma B., Scott J. Dos Santos, Irenie Shiangoli, Judith M. Holdstock, David Beckett, and Mark S. Whiteley. "Pelvic venous reflux in males with varicose veins and recurrent varicose veins." Phlebology: The Journal of Venous Disease 33, no. 6 (2017): 382–87. http://dx.doi.org/10.1177/0268355517728667.

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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. Results Pelvic

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K. Kotteeswaran, Pradeep kumar S, and Poojasree B. "Study on the Prevalence Rate of Varicose Veins among School Teachers." International Journal of Physiotherapy and Research 10, no. 5 (2022): 4337–41. http://dx.doi.org/10.16965/ijpr.2022.110.

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Background: The teachers are the biggest asset of the society as they are the source of knowledge and teaches about morals to the children.They face many problems which mainly affect their quality of life. One of the problem is varicose veins which shows various symptoms like itching and ulceration. Aim: The aim of the study is to find the prevalence rate of varicose veins among school teachers. Objective: To determine the prevalence rate of varicose veins among school teachers using VEINES-symptoms questionnaire.To determine which gender has higher prevalence rate of Varicose veins. Materials

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12

Altus, DP, and MJ Canny. "Water Pathways in Wheat Leaves. I. The Division of Fluxes Between Different Vein Types." Functional Plant Biology 12, no. 2 (1985): 173. http://dx.doi.org/10.1071/pp9850173.

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This study concerns the pathway of water movement through the vascular system of the wheat leaf blades. These water pathways were followed using three kinds of markers dissolved in the transpiration stream by which the patterns of water reticulation were made visible. There was a partitioning of the total water flux between the veins of the different types. The lateral veins dominate the conduction of water along the leaf from the base, and also distribute water to the mesophyll in their immediate vicinity. The intermediate veins receive water from the lateral veins in the transverse direction

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Ishita, Vekariya* Morvi Raval Arati Bhetariya Dr. Chintankumar Tank Vandana Ghul Yash Mori Drashti Bhalara. "A Development of Varicose Vein: Today & Tomorrow." International Journal of Pharmaceutical Sciences 3, no. 3 (2025): 26–34. https://doi.org/10.5281/zenodo.15117741.

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Chronic venous insufficiency or CVI, is a condition in which veins have problems moving blood back to the heart. With long-term (chronic) venous insufficiency, vein walls are weakened and valves are damaged. Chronic venous insufficiency can develop from common conditions such as Varicose Veins. It is a common condition characterized by enlarged, twisted, blue or purple bulging and painful veins, typically affecting the lower extremities of the body. It's noteworthy that even in the absence of obvious bulging veins, the term "varicose veins" is frequently used to describe superficial venous ref

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Van Cleef, J. F., Ph Griton, M. Cloarec, C. Ribreau, and R. Lemaire. "Venous Valves and Tributary Veins." Phlebology: The Journal of Venous Disease 6, no. 4 (1991): 219–22. http://dx.doi.org/10.1177/026835559100600403.

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Our work on the four-stroke dynamic model of the muscular pump of the calf and our video films on venous ambulatory endoscopy allow us to set forth the following concept: there are always one or more openings of tributary veins close to a venous valve. A vein has a preferential axis of flattening, and its cross-sectional configuration can be defined as: an internal wall, an external wall, two borders and two extremities. The bicuspid valves' cornua are situated on the borders of the vein. Close to the valves we distinguish the commissural tributaries on the vein's borders from the sinusal trib

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Nayak, Gyanaranjan, Niranjan Sahoo, and Sujita Pradhan. "Abnormal communication between cephalic and basilic veins-a case report." International Journal of Research in Medical Sciences 11, no. 9 (2023): 3451–52. http://dx.doi.org/10.18203/2320-6012.ijrms20232807.

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The cephalic vein and basilic vein begin respectively from lateral and medial ends of the dorsal venous arch of hand. The basilic vein is confined to the medial side of upper limb and continues upwards as the axillary vein whereas the cephalic vein is confined to the lateral side of upper limb and drains into the axillary vein. The aforesaid veins communicate with one another through the median cubital vein that lies in the roof of cubital fossa. The superficial veins are used for venepuncture, cardiac catheterization, bypass grafting and arteriovenous fistula for hemodynamic access. The autho

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Travers, J. P., C. M. Dalton, D. M. Baker, and G. S. Makin. "Biochemical and Histological Analysis of Collagen and Elastin Content and Smooth Muscle Density in Normal and Varicose Veins." Phlebology: The Journal of Venous Disease 7, no. 3 (1992): 97–100. http://dx.doi.org/10.1177/026835559200700303.

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Objective: Determination of the ratio of collagen and elastin to protein content of varicose/non-varicose veins from calf and determination of collagen, elastin and smooth muscle density of varicose/non-varicose vein walls. Design: Prospective study; control vein samples obtained from amputees for ischaemic vascular disease and varicose vein samples obtained from an equivalent Position following surgical stripping. Setting: Departments of Human Morphology and Vascular Surgery, Queen's Medical Centre, University of Nottingham, UK. Patients: Seven patients with no evidence of venous disease trea

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Taccoen, A., C. Lebard, and F. Zuccarelli. "Laser Doppler Flux in Normal and Varicose Long Saphenous Vein Wall." Phlebology: The Journal of Venous Disease 11, no. 4 (1996): 146–49. http://dx.doi.org/10.1177/026835559601100404.

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Objective: To assess the wall perfusion in normal and varicose veins. Design: Observational study. Setting: Departments of vascular surgery of private and public hospitals. Patients: Twenty-seven patients undergoing vein surgery (43 long saphenous veins) and eight controls operated on for femoral-popliteal bypass. Methods: Laser Doppler flowmetry assessing long saphenous vein wall perfusion 3 cm below the saphenofemoral junction. Results: Significantly reduced wall perfusion was shown in varicose long saphenous veins compared with normal veins: 16.3 (SD 10.3) versus 45.4 (SD 14.9); p<0.001.

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Dong, Liu, Liu Yi, Li Junchen, et al. "Clinical Significance of Anterograde Angiography for Preoperative Evaluation in Patients with Varicose Veins." Journal of Radiology and Oncology 9, no. 1 (2025): 001–6. https://doi.org/10.29328/journal.jro.1001073.

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Objective: To investigate the clinical significance of preoperative lower extremity venography in patients with varicose veins. Methods: From February 2019 to July 2023, 498 patients (583 diseased lower limbs) with lower limb varicose veins as the first symptom were selected and admitted to the Seventh People’s Hospital of Chongqing. Paracentesis of the deep veins of the lower extremities was performed in all affected limbs to observe the morphology of the deep veins from the ankle to the pelvis, the patency of the deep veins, and the reflux of contrast medium when the patients performed the V

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Parihar, Shweta, ,. Sarswati, ,. Chattarpal, and Devender Sharma. "A Brief Review on Herbs Used in the Treatment of Varicose Veins." Journal of Drug Delivery and Therapeutics 12, no. 1 (2022): 158–62. http://dx.doi.org/10.22270/jddt.v12i1.5161.

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A weakening of the venous valves and walls is a common cause of varicose veins. Blood might flow back and pool in veins due to damaged valves, causing them to enlarge. Weakened vein walls are longer, broader, and less elastic than normal, causing valve flaps to split, resulting in increased blood pooling and twisted veins. Primary varicose veins are characterised by valvular incompetence and reflux, which have long been assumed to be the cause. Recent research, on the other hand, reveals that valve dysfunction may be preceded by alterations in the vein wall. This condition is referred to as "S

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Samsonava, I. V., M. M. Galishevich, and S. A. Sushkou. "Expression of the proinflammatory marker CD34 in varicose leg veins." Phlebologie 44, no. 01 (2015): 19–23. http://dx.doi.org/10.12687/phleb2221-1-2015.

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Summary Objective: To study the CD34 expression in the leg veins with primary varicose veins. Material and Methods: The study included 18 patients with lower limbs varicose veins and deep vein valves insufficiency of C3 and C4 clinical classes (CEAP). To correct blood flow phlebectomy was accompanied by posterior tibial veins resection. Using immunohistochemistry, we compared the expression of CD34 in resected posterior tibial veins specimens and vena saphena magna distal fragment. Results: Posterior tibial veins wall in patients with lower limb varicosity and deep veins valves insufficiency v

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Schmidt, Benjamin A., Matthias Guenther, Kai Halbritter, Jan Beyer, and Sebastian M. Schellong. "Interobserver Agreement of Centrally Adjudicated Venous Ultrasound Video Documents in Asymptomatic Patients after Hip and Knee Replacement." Blood 106, no. 11 (2005): 3208. http://dx.doi.org/10.1182/blood.v106.11.3208.3208.

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Abstract Feasibility of venous ultrasound as an endpoint measure in multicenter trials critically depends on the type and quality of documents which can be assessed by central adjudication. We evaluated the offline assessability of standardized video documents of complete compression ultrasound (CCUS) in asymptomatic patients 7 days after hip or knee replacement. The study was performed at a single study center. Consecutive asymptomatic patients one week after hip or knee replacement were screened for deep vein thrombosis by complete compression ultrasound of proximal and distal veins includin

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Hirokawa, Masayuki, Katsushi Oda, Akira Yamamoto, et al. "Endoscopic Vein Surgery in Lower Extremities with VasoView System." Asian Cardiovascular and Thoracic Annals 8, no. 2 (2000): 146–49. http://dx.doi.org/10.1177/021849230000800213.

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The VasoView system was used for endoscopic saphenous vein harvesting in 10 coronary artery bypass patients and for endoscopic subfascial division of perforating veins in 8 patients with varicose veins. In both procedures, the surface of the saphenous vein and the subfascial plane were dissected using the VasoView dissection cannula. An operative tunnel was subsequently created by inflating and deflating the balloon and maintained by carbon dioxide insufflation. The branches of the saphenous vein and the perforating veins were divided with bipolar scissors under endoscopic vision. In endoscopi

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Phalgunan, Vijisha, N. Mugunthan, Devi Jansi Rani, and J. Anbalagan. "A study of renal and gonadal vein variations." National Journal of Clinical Anatomy 01, no. 03 (2012): 125–28. http://dx.doi.org/10.1055/s-0039-3401679.

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Abstract Background and aims : The development of the renal veins is a complex process with many possible alternative patterns of formation. Variations of renal veins are usually clinically silent until discovered during venography, operation or autopsy. In the era of renal transplantation, a meticulous knowledge of anatomy and variational patterns of renal vein is mandatory. The present study is aimed at finding out the incidence of variations in the drainage pattern of renal vein and gonadal vein and to correlate its clinical and embryological significance. Materials and methods : Twenty cad

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S., Ispas, Dina C., Bulbuc I., Iliescu D.M., and Bordei P. "Morphological aspects of the pulmonary veins." ARS Medica Tomitana 20, no. 1 (2014): 50–56. http://dx.doi.org/10.2478/arsm-2014-0010.

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ABSTRACT Our study was performed on 21 cases, of which 12 were plastic casts and 9 were CT reconstruction. We found that, most frequently (68.75% of the cases), the pulmonary veins were formed by two roots, one superior and one inferior. In 28.13% of cases, the pulmonary veins were formed from three roots (superior, middle and inferior) and in only one case the superior right pulmonary vein had five roots. The venous roots confluence to form the corresponding trunk was at a distance of between 0.5-2 cm. The termination of the superior pulmonary veins was on the upper part of the anterior atria

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de Cossart, Linda. "Quantitative Measurement of Plasminogen Activator in Soleal Veins." Phlebology: The Journal of Venous Disease 1, no. 2 (1986): 119–23. http://dx.doi.org/10.1177/026835558600100205.

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Deep vein thrombosis (DVT) in the lower limb has been associated with a low level of circulating plasminogen activator (pa) and low levels of pa in the superficial hand veins of affected patients. Little is known of the pa level in the veins commonly affected by DVT. Immediately after amputation of limbs for rest pain samples of soleal veins ( n = 9) and long saphenous vein (LSV) ( n = 9) were obtained and frozen in liquid nitrogen. Six normal veins from the groins of patients having hernia repairs were taken as controls. The median activity in the soleal veins was 6796 (range 2232 to 21 570),

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Tang, Tjun Y., Harsha P. Rathnaweera, Jia W. Kam, Tze T. Chong, Edward C. Choke, and Yih K. Tan. "Endovenous cyanoacrylate glue to treat varicose veins and chronic venous insufficiency—Experience gained from our first 100+ truncal venous ablations in a multi-ethnic Asian population using the Medtronic VenaSeal™ Closure System." Phlebology: The Journal of Venous Disease 34, no. 8 (2019): 543–51. http://dx.doi.org/10.1177/0268355519826008.

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Objectives The aim of this prospective single-centre study is to assess the effectiveness and patient experience of the VenaSeal™ Closure System, a novel non-thermal, non-tumescent catheter technique, which uses cyanoacrylate glue to occlude the refluxing truncal superficial veins to treat varicose veins and chronic venous insufficiency, in a multi-ethnic Asian population from Singapore. Methods Seventy-seven patients (93 legs; 103 procedures) underwent VenaSeal™ Closure System ablation. Forty-nine (63.6%) for great saphenous vein incompetence, 16 (20.8%) bilateral great saphenous vein, 2 (2.6

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Lv, W., X.-J. Wu, M. Collins, Z.-L. Han, and X. Jin. "Analysis of a Series of Patients with Varicose Vein Recurrence." Journal of International Medical Research 40, no. 3 (2012): 1156–65. http://dx.doi.org/10.1177/147323001204000336.

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OBJECTIVE: Varicose veins of the lower extremities is a common clinical condition. Although surgical treatment is often successful, the recurrence rate remains high. This retrospective study evaluated the reasons for postoperative recurrence of varicose veins by analysing ultrasonography and venography findings in patients with recurrent disease. METHODS: A series of consecutive cases of recurrent varicose veins of the lower limbs was reviewed. Data collected included clinical characteristics, symptoms and vascular imaging. RESULTS: The study included 109 legs with recurrent varicose veins (92

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Ozudogru, Z., Z. Soyguder, G. Aksoy, and H. Karadag. "A macroscopical investigation of the portal veins of the Van cat." Veterinární Medicína 50, No. 2 (2012): 77–84. http://dx.doi.org/10.17221/5599-vetmed.

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In this study veins that constituted the portal vein were investigated in eight adult Van cats. The portal vein of the Van cat was composed of five peripheral branches which supplied the abdominal organs and two intrahepatic branches at the hepatic porta. The peripheral branches were cranial mesenteric, splenic, gastroduodenal, right gastric and cystic veins. The cranial mesenteric vein was the largest vessel that joined to the portal vein, and was constituted by the caudal pancreaticoduodenal, ileal, ileocolic and jejunal veins. The splenic vein was formed by the left gastric, left gastroepip

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Vuylsteke, M., J. Van Dorpe, J. Roelens, Th De Bo, and S. Mordon. "Endovenous laser treatment: a morphological study in an animal model." Phlebology: The Journal of Venous Disease 24, no. 4 (2009): 166–75. http://dx.doi.org/10.1258/phleb.2009.008070.

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Objectives The destruction induced during endovenous laser treatment (ELT) of the saphenous vein and the perivenous tissue in an animal model (goats) was analysed. Differences in vein wall destruction produced by two laser types, the 980 and 1500 nm diode lasers, were evaluated histologically. Methods In 14 goats, 28 lateral saphenous veins were treated with ELT. In 14 veins we used the 980 nm diode laser and in the remnant a 1500 nm laser. Postoperatively the veins were removed at different stages and sent for histological examination. Results Immediately removed veins after ELT show an uneve

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Krnic and Sucic. "Bipolar radiofrequency induced thermotherapy and 1064 nm Nd:Yag laser in endovenous occlusion of insufficient veins: short term follow up results." Vasa 40, no. 3 (2011): 235–40. http://dx.doi.org/10.1024/0301-1526/a000098.

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Background: The aim of this study is to report our results in main stem vein closure using the bipolar radiofrequency induced thermotherapy (RFITT) system and the 1064nm Nd:Yag laser. Patients and methods: 44 incompetent main stem veins (37 great saphenous veins, one lesser saphenous vein, and 6 anterior accessory saphenous veins) in 29 patients were treated using RFITT. 53 incompetent main stem veins (45 great saphenous veins, 4 lesser saphenous veins, and 4 anterior accessory saphenous veins) in 43 patients were treated endovenously with 1064 nm Nd:Yag laser. All patients underwent postopera

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Vasic, Dragan, Lazar Davidovic, Zivan Maksimovic, Aleksandra Crni, Miroslav Markovic, and Sinisa Pejkic. "Primary varicose veins: Frequency, clinical significance and surgical treatment." Srpski arhiv za celokupno lekarstvo 132, no. 11-12 (2004): 398–403. http://dx.doi.org/10.2298/sarh0412398v.

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INTRODUCTION According to the definition of the World Health Organization, varicose veins represent abnormally enlarged superficial veins having baggy or cylindrical shape. The most frequent cause of primary varicose veins is the insufficiency of long saphenous vein (LSV), but especially the basin of its connection with femoral vein and perforating veins. OBJECTIVE The objectives of these investigations were: the determination of insufficiency incidence of SSV in cases of LSV insufficiency; the establishment of association of insufficiency of perforating veins of the basin of LSV and SSV; the

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Richardson, G. D., T. C. Beckwith, and M. Sheldon. "Ultrasound Windows to Abdominal and Pelvic Veins." Phlebology: The Journal of Venous Disease 6, no. 2 (1991): 111–25. http://dx.doi.org/10.1177/026835559100600210.

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While ultrasound examination of leg veins has been largely accepted, assessment of the pelvic and lower abdominal veins has been largely ignored. The problem here is that the pelvic region contains important veins, which require assessment for deep vein thrombosis and pelvic and vulval varices, but these are superimposed by abdominal viscera. The need to assess the veins of the lower abdomen and pelvic cavity prompted us to develop a reproduceable technique of ‘windowing’ into the abdomen and pelvis to view certain veins. To view a certain vein, a nominated angle of approach from a particular

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Biehs, B., M. A. Sturtevant, and E. Bier. "Boundaries in the Drosophila wing imaginal disc organize vein-specific genetic programs." Development 125, no. 21 (1998): 4245–57. http://dx.doi.org/10.1242/dev.125.21.4245.

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Previous studies have suggested that vein primordia in Drosophila form at boundaries along the A/P axis between discrete sectors of the larval wing imaginal disc. Genes involved in initiating vein development during the third larval instar are expressed either in narrow stripes corresponding to vein primordia or in broader ‘provein’ domains consisting of cells competent to become veins. In addition, genes specifying the alternative intervein cell fate are expressed in complementary intervein regions. The regulatory relationships between genes expressed in narrow vein primordia, in broad provei

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Chaynes, Patrick. "Microsurgical anatomy of the great cerebral vein of Galen and its tributaries." Journal of Neurosurgery 99, no. 6 (2003): 1028–38. http://dx.doi.org/10.3171/jns.2003.99.6.1028.

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Object. The deep cerebral veins may pose a major obstacle in operative approaches to deep-seated lesions, especially in the pineal region where multiple veins converge on the great cerebral vein of Galen. Because undesirable sequelae may occur from such surgery, the number of veins and branches to be sacrificed during these approaches should kept to a minimum. The purpose of this study was to examine venous drainage into the vein of Galen with a view to surgical approaches. If a vein hampering surgical access must be sacrificed, it can therefore be selected according to the smallest draining t

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Colman, T. B., and A. K. Appleby. "Volcanogenic quartz-magnetite-hematite veins, Snowdon, North Wales." Mineralogical Magazine 55, no. 379 (1991): 257–62. http://dx.doi.org/10.1180/minmag.1991.055.379.14.

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AbstractIn the Ordovician Snowdon Volcanic Group caldera quartz-magnetite-hematite-pyrite assemblages occur in a breccia vein in rhyolitic tuff and vein swarms in basalt. The veins developed pre-cleavage. Elevated levels of tin and tungsten in the veins, and of fluorine in the wall rocks, suggest a magmatic contribution to the mineralising fluids. The chemistry of the veins differs from that of the base-metal sulphide veins found elsewhere in the caldera.

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Moreira, Ricardo C. Rocha, Márcio Miyamotto, Ramzi Abdallah El-Hosni Jr., and Barbara D’Agnoluzzo Moreira. "The role of transillumination phleboscopy in the planning of cosmetic operations for varicose veins." Jornal Vascular Brasileiro 8, no. 4 (2009): 313–17. http://dx.doi.org/10.1590/s1677-54492009000400006.

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Background: The cosmetic treatment of varicose veins is the main activity of most vascular surgeons in Brazil. In order to obtain satisfactory cosmetic results, careful planning of varicose vein operations is necessary. Objective: Marking (or "mapping") the varicose veins with indelible ink is an essential step in planning cosmetic surgeries for lower limb varicose veins. In the present study, the role of transcutaneous phleboscopy (TcPh) in planning varicose vein operations is evaluated. Methods: A series of 100 consecutive patients, all female, were evaluated with TcPH as part of their varic

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Akulova, A. A., V. L. Soroka, D. V. Bondarchuk, A. E. Solomakhin, and K. V. Lobastov. "Dilatation of suprapubic veins as a manifestation of pelvic varicose veins: description of a clinical case." Ambulatornaya khirurgiya = Ambulatory Surgery (Russia) 20, no. 2 (2023): 54–62. http://dx.doi.org/10.21518/akh2023-023.

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The presence of dilated suprapubic veins (suprapubic shunt) is considered to be a classic symptom of post-thrombotic and non-thrombotic venous outflow obstruction. Meanwhile, the descriptions of isolated cases of the creation of a suprapubic shunt during pregnancy in women with pelvic varicose disease are presented in the literature. We present a clinical case report of successful treatment of pelvic varicose disease with the presence of dilated veins in the suprapubic region. A 33-year-old patient complained of the presence of varicose veins in the lower extremities, in the perineum and supra

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Earnshaw, J. J., B. Davies, K. Harradine, and B. P. Heather. "Preliminary Results of PTFE Patch Saphenoplasty to Prevent Neovascularization Leading to Recurrent Varicose Veins." Phlebology: The Journal of Venous Disease 13, no. 1 (1998): 10–13. http://dx.doi.org/10.1177/026835559801300103.

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Objective: Recurrence is common after varicose vein surgery. Neovascularization may be one cause of recurrent veins. This was a study of PTFE patch saphenoplasty to try and prevent recurrent veins. Design and setting: Prospective cohort study of patients treated in a vascular surgical unit. Patients and interventions: Fifty patients having surgery for symptomatic long saphenous varicose veins (66 legs, 51 primary and 15 recurrent veins) had a PTFE patch sutured over the saphenous opening after flush saphenofemoral ligation. Main outcome measures: The rate of varicose vein recurrence and neovas

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van der Wijk, Anne-Eva, Malou PH Schreurs, and Marilyn J. Cipolla. "Pregnancy Causes Diminished Myogenic Tone and Outward Hypotrophic Remodeling of the Cerebral Vein of Galen." Journal of Cerebral Blood Flow & Metabolism 33, no. 4 (2013): 542. http://dx.doi.org/10.1038/jcbfm.2012.199.

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Pregnancy increases the risk of several complications associated with the cerebral veins, including thrombosis and hemorrhage. In contrast to the cerebral arteries and arterioles, few studies have focused on the effect of pregnancy on the cerebral venous side. Here, we investigated for the first time the effect of pregnancy on the function and structure of the cerebral vein of Galen in rats. Our major finding was that cerebral veins from late-pregnant (LP, n = 11) rats had larger lumen diameters and thinner walls than veins from nonpregnant (NP, n = 13) rats, indicating that pregnancy caused o

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Thomas, M. Lea, and G. Solis. "The Phlebographic Distribution of Deep Venous Thrombosis in the Calf and its Relevance to Duplex Ultrasound." Phlebology: The Journal of Venous Disease 7, no. 2 (1992): 64–66. http://dx.doi.org/10.1177/026835559200700204.

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Objective: To assess the distribution of deep vein thrombosis in the calf by phlebography. Setting: Department of Vascular Radiology, St. Thomas' Hospital, London, England. Patients: Seventy patients with suspected deep vein thrombosis or pulmonary embolism were examined. Interventions: Bilateral ascending contrast phlebography was performed in all patients. Main Outcome Measures: The sites of any thrombus in the stem or muscle veins of the calf below the popliteal vein were recorded. Results: One hundred legs contained thrombus. In fifty-three legs thrombus was present solely in the calf vein

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Uhl, Jean-François, and Claude Gillot. "Anatomy of the veno-muscular pumps of the lower limb." Phlebology: The Journal of Venous Disease 30, no. 3 (2014): 180–93. http://dx.doi.org/10.1177/0268355513517686.

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Objective To study the anatomy of the veno-muscular pumps of the lower limb, particularly the calf pump, the most powerful of the lower limb, and to confirm its crucial importance in venous return. Methods In all, 400 cadaveric limbs were injected with green Neoprene latex followed by an anatomical dissection. Results The foot pump is the starter of the venous return. The calf pump can be divided into two anatomical parts: the leg pump located in the veins of the soleus muscle and the popliteal pump ending in the popliteal vein with the unique above-knee collector of the medial gastrocnemial v

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de Haan, M. W., J. C. J. M. Veraart, H. A. M. Neumann, and P. A. F. A. van Neer. "Recurrent varicose veins below the knee after varicose vein surgery." Phlebologie 36, no. 03 (2007): 132–36. http://dx.doi.org/10.1055/s-0037-1622175.

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SummaryThe objectives of this observational study were to investigate whether varicography has additional value to CFDI in clarifying the nature and source of recurrent varicose veins below the knee after varicose vein surgery and to investigate the possible role of incompetent perforating veins (IPV) in these recurrent varicose veins. Patients, material, methods: 24 limbs (21 patients) were included. All patients were assessed by a preoperative clinical examination and CFDI (colour flow duplex imaging). Re-evaluation (clinical and CFDI) was done two years after surgery and varicography was pe

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Silva, M., J. Henriques, J. Silva, V. Camargos, and P. Moreira. "Venous arrangement of the head and neck in humans - anatomic variability and its clinical inferences." Journal of Morphological Sciences 33, no. 01 (2016): 022–28. http://dx.doi.org/10.4322/jms.093815.

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Abstract Introduction: The knowledge of morphological variations of the veins of the head and neck is essential for health professionals, both for diagnostic procedures as for clinical and surgical planning. This study described changes in the following structures: retromandibular vein and its divisions, including the relationship with the facial nerve, facial vein, common facial vein and jugular veins. Material and Methods: The variations of the veins were analyzed in three heads, five hemi-heads (right side) and two hemi-heads (left side) of unknown age and sex. Results: The changes only on

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Hoffmann, Jordan, Seth Donoughe, Kathy Li, Mary K. Salcedo, and Chris H. Rycroft. "A simple developmental model recapitulates complex insect wing venation patterns." Proceedings of the National Academy of Sciences 115, no. 40 (2018): 9905–10. http://dx.doi.org/10.1073/pnas.1721248115.

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Insect wings are typically supported by thickened struts called veins. These veins form diverse geometric patterns across insects. For many insect species, even the left and right wings from the same individual have veins with unique topological arrangements, and little is known about how these patterns form. We present a large-scale quantitative study of the fingerprint-like “secondary veins.” We compile a dataset of wings from 232 species and 17 families from the order Odonata (dragonflies and damselflies), a group with particularly elaborate vein patterns. We characterize the geometric arra

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Sugiyama, Kazuki, Yoshihiro Kubota, and Osamu Mochizuki. "Circuit analogy unveiled the haemodynamic effects of the posterior cross vein in the wing vein networks." PLOS ONE 19, no. 4 (2024): e0301030. http://dx.doi.org/10.1371/journal.pone.0301030.

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We investigated the wing vein network topology in fruit flies and observed that the posterior cross vein (PCV) disrupts the symmetry of the entire network. The fluidic engineering function of this vein’s disposition remains unexplored although the wing vein network is known to transport blood. We examined the fluid mechanical effects of the PCV’s disposition on this blood-transporting network through numerical simulations involving the removal and rearrangement of the vein, avoiding impractical physical manipulation. We characterised the geometry of each wing membrane cell, a portion of the wi

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Beresford, T., J. J. Smith, L. Brown, R. M. Greenhalgh, and A. H. Davies. "A comparison of health-related quality of life of patients with primary and recurrent varicose veins." Phlebology: The Journal of Venous Disease 18, no. 1 (2003): 35–37. http://dx.doi.org/10.1258/026835503321236885.

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Aim: To determine whether recurrent varicose veins affect patient quality of life. The health-related quality of life (HRQL) scores of patients with recurrent varicose veins were compared with those of patients presenting with primary varicose vein disease. Methods: HRQL among patients attending outpatient appointments for recurrent and primary varicose veins was measured using the Aberdeen Varicose Vein Questionnaire (AVVQ) and the Short Form-36 General Health Survey (SF-36). Results: Questionnaires were given to 211 patients (150 primary, 61 recurrent), and 194 (133 primary, 61 recurrent) co

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Girish D Dahikar, Dipika D Giradkar, Shagufta A Khan, and Rajendra O Ganjiwale. "A review on remedies used in treatment of varicose veins and varicocele." GSC Biological and Pharmaceutical Sciences 18, no. 2 (2022): 244–52. http://dx.doi.org/10.30574/gscbps.2022.18.2.0078.

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Varicose vein is clinical class of the (CVD) i.e. chronic venous disease, also called as the varicosities. Varicose veins are enlarged, swollen and twisting veins often appearing blue or dark purple. When valves in the veins do not work properly, the blood does not flow effectively. The expansion of varicose veins is often caused by a weakening of valves and walls. Generally varicose vein is found in females especially in case of pregnancy. Varicose veins generally found in lower extremity, leg and the epididymis. Epididymis is the highly convoluted duct behind the testis along which sperm pas

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Girish, D. Dahikar, D. Giradkar Dipika, A. Khan Shagufta, and O. Ganjiwale Rajendra. "A review on remedies used in treatment of varicose veins and varicocele." GSC Biological and Pharmaceutical Sciences 18, no. 2 (2022): 244–52. https://doi.org/10.5281/zenodo.6330406.

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Varicose vein is clinical class of the (CVD) i.e. chronic venous disease, also called as the varicosities. Varicose veins are enlarged, swollen and twisting veins often appearing blue or dark purple. When valves in the veins do not work properly, the blood does not flow effectively. The expansion of varicose veins is often caused by a weakening of valves and walls. Generally varicose vein is found in females especially in case of pregnancy. Varicose veins generally found in lower extremity, leg and the epididymis. Epididymis is the highly convoluted duct behind the testis along which sperm pas

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Kendler, M., J. Kratzsch, T. Wetzig, and J. C. Simon. "Sex steroid hormones are not altered in great saphenous veins after varicose vein treatment in male patients." Phlebology: The Journal of Venous Disease 29, no. 5 (2013): 310–17. http://dx.doi.org/10.1177/0268355513478586.

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Objective: The objective of this study was to assess differences in blood samples (sex steroid hormone levels and blood counts) before and after surgical treatment of incompetent great saphenous veins (GSV) in males. Methods: Antecubital vein and GSV blood samples were taken from 11 men with varicose veins and GSV reflux before and after treatment. Six patients were treated with high ligation, stripping and phlebectomy. Five patients were treated with endoluminal radiofrequency ablation and phlebectomy. After a four-year follow-up period (FU) cubital vein and GSV blood samples were taken again

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Gwozdzinski, Lukasz, Anna Pieniazek, Joanna Bernasinska-Slomczewska, Pawel Hikisz, and Krzysztof Gwozdzinski. "Alterations in the Plasma and Red Blood Cell Properties in Patients with Varicose Vein: A Pilot Study." Cardiology Research and Practice 2021 (June 30, 2021): 1–10. http://dx.doi.org/10.1155/2021/5569961.

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The varicose vein results from the inefficient functioning of the valves in the lower limb veins, making the blood flow slow down and leading to blood stasis and hypoxia. This type of vein dysfunction might be a result of the development of oxidative stress. We compared oxidative stress markers in the plasma and erythrocytes obtained from peripheral veins and varicose veins in the same patients (glutathione, nonenzymatic antioxidant capacity (NEAC), catalase (CAT) and acetylcholinesterase (AChE) activity, thiols, thiobarbituric acid-reactive substance (TBARS), and protein carbonyls). We found

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