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https://www.readbyqxmd.com/read/29043853/microvascular-network-and-its-endothelial-cells-in-the-human-iris
#1
Hongfang Yang, Paula K Yu, Stephen J Cringle, Xinghuai Sun, Dao-Yi Yu
PURPOSE: The iris allows effective delivery of nutrients into the aqueous humor supplying the surrounded avascular tissues. However, possible underlying mechanisms of the iris vasculature have not been well established. This study aims to quantitatively assess the human iris vascular network, endothelial cell morphometries, and characterize endothelial junctions to better understand the properties of the iris vasculature. MATERIALS AND METHODS: The irises from human donor eyes were dissected and short fixed before float staining for VE-cadherin and claudin-5, f-actin and nuclei and flat-mounted for confocal imaging...
October 18, 2017: Current Eye Research
https://www.readbyqxmd.com/read/29037363/a-systematic-review-and-meta-analysis-of-two-novel-techniques-of-nonthermal-endovenous-ablation-of-the-great-saphenous-vein
#2
REVIEW
Cornelis G Vos, Çağdaş Ünlü, Jan Bosma, Clarissa J van Vlijmen, A Jorianne de Nie, Michiel A Schreve
BACKGROUND: Endothermal treatment of the great saphenous vein (GSV) has become the first-line treatment for superficial venous reflux. Nonthermal ablation has potential benefits for acceptability by patients and decreased risk of nerve injury. We performed a systematic review and meta-analysis to evaluate the efficacy of mechanochemical endovenous ablation (MOCA) and cyanoacrylate vein ablation (CAVA) for GSV incompetence. METHODS: MEDLINE, Embase, Cumulative Index to Nursing and Allied Health Literature, and Cochrane databases were searched for papers published between January 1966 and December 2016...
November 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29037351/rivaroxaban-versus-fondaparinux-for-thromboprophylaxis-after-endovenous-laser-ablation
#3
Hong H Keo, Frederic Baumann, Nicolas Diehm, Christian Regli, Daniel Staub
OBJECTIVE: Endovenous heat-induced thrombosis (EHIT) and deep venous thrombosis (DVT) are well-known complications after superficial endovenous thermoablation. We investigated the efficacy of rivaroxaban in preventing EHIT and DVT after endovenous laser ablation (EVLA). METHODS: We retrospectively analyzed a consecutive series of patients presenting with truncal varicosis class C2 to C6 undergoing EVLA. After EVLA, all patients received oral rivaroxaban (10 mg) or subcutaneous fondaparinux (2...
November 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29031868/prevalence-and-risk-factors-for-chronic-venous-disease-in-the-general-russian-population
#4
Igor A Zolotukhin, Evgeny I Seliverstov, Yuri N Shevtsov, Ilona P Avakiants, Aleksey S Nikishkov, Andrey M Tatarintsev, Alexander I Kirienko
OBJECTIVE/BACKGROUND: The aim was to establish the prevalence of chronic venous disease (CVD) and its risk factors in the general population. METHODS: This was a population based, cross sectional study. In total, 703 residents aged > 18 years from the rural community of Kryukovo (Central Russia) were enrolled. Medical history was taken and clinical examination performed, documenting venous signs/symptoms. The CEAP classification of the most affected limb was used...
October 11, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28987552/is-infection-an-independent-risk-factor-for-venous-thromboembolism-a-population-based-case-control-study
#5
Kevin P Cohoon, Aneel A Ashrani, Daniel J Crusan, Tanya M Petterson, Kent R Bailey, John A Heit
BACKGROUND: The independent association of recent infection with venous thromboembolism is uncertain. The purpose of the study was to test both overall infection (site unspecified) and specific infection sites as potential risk factors for deep vein thrombosis and pulmonary embolism adjusting for other known venous thromboembolism factors. METHODS: Using Rochester Epidemiology Project (REP) resources, we identified all Olmsted County, MN residents with objectively-diagnosed incident deep vein thrombosis or pulmonary embolism over the 13-year period, 1988-2000 (cases; n=1303), and 1-2 residents without venous thromboembolism matched to each case on age, sex and incident venous thromboembolism date (controls; n=1494)...
October 4, 2017: American Journal of Medicine
https://www.readbyqxmd.com/read/28984727/sickle-cell-disease-and-the-eye
#6
REVIEW
Brian K Do, Damien C Rodger
PURPOSE OF REVIEW: To review recent literature pertaining to sickle cell retinopathy (SCR) and, in particular, sickle cell maculopathy. RECENT FINDINGS: Several recent studies suggest that macular perfusion abnormalities seen in patients with sickle cell disease of various genotypes may affect both the superficial and deep capillary plexi, with a predilection for the deep capillary plexus. Further, these changes may be associated with areas of macular thinning, as well as with peripheral retinal ischemia, even in individuals without visual symptoms, contrary to what has previously been described in both diabetic retinopathy and retinal vein occlusion...
November 2017: Current Opinion in Ophthalmology
https://www.readbyqxmd.com/read/28976394/-approach-to-venous-diseases-in-the-elderly
#7
Ahmet Kürşat Bozkurt, Ozan Onur Balkanay
Incidence and severity of both deep vein thrombosis and chronic venous insufficiency are increased with age. Today, however, the significance of these diseases in the elderly patient population are still poorly comprehended. Although most patients have a history of previous treatment, chronic venous insufficiency is usually encountered in the advanced clinical stage. As a result, there is an increase in mobility restrictions, the need for assistance in daily activities and the risk of falls in elderly patients...
September 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28976126/unilateral-angiokeratoma-of-vulva-a-rare-clinic-entity
#8
Aytekin Tokmak, Demet Kokanalı, Nagihan Özcan Cengaver, Gülçin Yıldırım, Ali I Rfan Güzel, Nafiye Yılmaz
The aim of this study is to present a very rare dermatologic condition of the vulva. Angiokeratoma is a benign dilation of ectatic thin-walled blood vessels and congested capillaries in the superficial dermal layer of skin. It occurs predominantly in men and extremely rare in women. Angiokeratoma presents as single or multiple papular lesions on the vulva with smooth or verrucous surface. These lesions are easily confused with infectious disease, inflammatory lesions, and epithelial tumors. In this report, we presented a 42 year old unmarried woman who was admitted to our clinic with complaints of two papuler lesions of the right labium majus with vaginal discharge, vulvar pruritis, and vulvar edema...
September 2017: Journal of Experimental Therapeutics & Oncology
https://www.readbyqxmd.com/read/28971178/giant-arachnoid-granulation-mimicking-dural-sinus-thrombosis
#9
Ercan Ayaz, Basak Atalay, Begumhan Baysal, Senem Senturk, Ahmet Aslan
Arachnoid granulations (AG) are composed of dense, collagenous connective tissue that includes clusters of arachnoid cells. They tend to invaginate into the dural sinuses, through which cerebrospinal fluid enters the venous system. AG are most commonly seen at the junction between the middle and lateral thirds of the transverse sinuses near the entry sites of the superficial veins. Presently described is the case of a 21-year-old female who presented at the clinic with recurrent headaches. Magnetic resonance (MR) imaging revealed a 3...
2017: Northern Clinics of Istanbul
https://www.readbyqxmd.com/read/28968319/a-novel-reverse-periauricular-flap-reconstruction-method-that-uses-additional-anastomosis-to-avoid-venous-congestion-for-periorbital-defects
#10
Hui Xiao, Haiping Wang
The aim of this study was to introduce and evaluate a method to prevent venous congestion in periauricular flap pedicled on the frontal branch of the superficial temporal artery (STA). Flaps based on the STA are therefore extremely versatile in reconstruction of the face and scalp. The literature on reconstructive possibilities provided by temporal flaps describes venous congestion, but there are currently no methods for preventing this problem. In this brief report, we describe a method to anastomose the parietal branch of superficial temporal vein and the middle temporal vein to ensure venous flow when a concomitant vein of the frontal branch of the STA is unavailable...
September 29, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28966642/spreading-depression-and-focal-venous-cerebral-ischemia-enhance-cortical-neurogenesis
#11
Ryo Tamaki, Samuel Ige Orie, Beat Alessandri, Oliver Kempski, Axel Heimann
Endogenous neurogenesis can arise from a variety of physiological stimuli including exercise, learning, or "enriched environment" as well as pathological conditions such as ischemia, epilepsy or cortical spreading depression. Whether all these conditions use a common trigger to set off endogenous neurogenesis is yet unclear. We hypothesized that cortical spreading depression (CSD) induces neurogenesis in the cerebral cortex and dentate gyrus after cerebral venous ischemia. Forty-two Wistar rats alternatively underwent sham operation (Sham), induction of ten CSDs or venous ischemia provoked via occlusion of two adjacent superficial cortical vein followed by ten induced CSDs (CSD + 2-VO)...
August 2017: Neural Regeneration Research
https://www.readbyqxmd.com/read/28963167/embolization-of-a-cavernous-carotid-fistula-through-the-vein-of-labb%C3%A3-a-new-alternative-transvenous-access-route
#12
Angelos Aristeidis Konstas, Alice Song, Julia Song, Aristomenis Thanos, Ian B Ross
Endovascular treatment of carotid cavernous fistulas (CCFs) via a transvenous approach is standard, but in rare cases this approach is challenging due to absence or thrombosis of the commonly used venous routes. A 61-year-old woman presented with a symptomatic CCF with all but one of the venous access routes to the CCF thrombosed, leaving an engorged superficial middle cerebral vein (SMCV) as the only venous outflow from the cavernous sinus. Access to the CCF was made possible after careful navigation of the sigmoid sinus, the vein of Labbé and the SMCV, bypassing the need for surgical access to the SMCV or for a direct transorbital puncture...
September 28, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28958568/effect-of-distal-venous-drainage-on-the-survival-of-four-territory-flaps-with-no-pedicle-vein-results-from-a-rat-model
#13
Seong Oh Park, Jeongmok Cho, Nobuaki Imanishi, Hak Chang
BACKGROUND: Venous super-drainage can improve flap survival not only because it prevents congestion, but also because it affects the dominant circulation in multi-territory thin skin flaps. We aimed to evaluate the survival of various flap areas and detect vascular changes in artery-based, four-territory skin flaps after different distal venous drainage procedures. METHODS: 4 x 12 cm sized flaps were elevated based only on the deep circumflex iliac artery. Fifty rats were divided into five groups, as follows: group 1, flaps drained with the deep circumflex iliac vein; group 2, flaps drained with the ipsilateral superficial inferior epigastric vein; group 3, flaps drained with the contralateral superficial inferior epigastric vein; group 4, flaps drained with the contralateral deep circumflex iliac vein; and group 5, flaps super-drained with the contralateral deep circumflex iliac vein...
September 13, 2017: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/28956506/one-year-results-of-the-use-of-endovenous-radiofrequency-ablation-utilising-an-optimised-radiofrequency-induced-thermotherapy-protocol-for-the-treatment-of-truncal-superficial-venous-reflux
#14
George E Badham, Scott J Dos Santos, Lucinda Ba Lloyd, Judy M Holdstock, Mark S Whiteley
Background In previous in vitro and ex vivo studies, we have shown increased thermal spread can be achieved with radiofrequency-induced thermotherapy when using a low power and slower, discontinuous pullback. We aimed to determine the clinical success rate of radiofrequency-induced thermotherapy using this optimised protocol for the treatment of superficial venous reflux in truncal veins. Methods Sixty-three patients were treated with radiofrequency-induced thermotherapy using the optimised protocol and were followed up after one year (mean 16...
January 1, 2017: Phlebology
https://www.readbyqxmd.com/read/28946724/the-anconeus-muscle-free-flap-clinical-application-to-lesions-on-the-hand
#15
Byung-Joon Jeon, Seung Jun Jwa, Dong Chul Lee, Si Young Roh, Jin Soo Kim
BACKGROUND: It can be difficult to select an appropriate flap for various defects on the hand. Although defects of the hand usually must be covered with a skin flap, some defects require a flap with rich blood supply and adequate additive soft tissue volume. The authors present their experience with the anconeus muscle free flap in the reconstruction of various defects and the release of scar contractures of the hand. METHODS: Ten patients underwent reconstruction of the finger or release of the first web space using the anconeus muscle free flap from May 1998 to October 2013...
September 2017: Archives of Plastic Surgery
https://www.readbyqxmd.com/read/28944130/brain-computed-tomography-angiography-as-an-ancillary-test-in-the-confirmation-of-brain-death
#16
Homa Sadeghian, Mohammad Ali Raeisi, Parviz Dolati, Rouzbeh Motiei-Langroudi
Introduction Brain death (BD) is the irreversible termination of the functioning of the brain. The diagnosis should be first made by clinical criteria and confirmed by using paraclinical confirmatory techniques (ancillary tests). While conventional brain angiography remains the standard method of choice, computed tomography angiography (CTA) has emerged as an alternative method. In this study, we tried to evaluate the accuracy of CTA for the diagnosis of BD. Methods In this study, we included nine patients with a clinical diagnosis of BD, confirmed by electroencephalography (EEG)...
July 19, 2017: Curēus
https://www.readbyqxmd.com/read/28927554/catheter-foam-sclerotherapy-of-the-great-saphenous-vein-with-perisaphenous-tumescence-infiltration-and-saphenous-irrigation
#17
Attilio Cavezzi, Giovanni Mosti, Fausto Campana, Lorenzo Tessari, Luca Bastiani, Simone U Urso
OBJECTIVES: This was a prospective observational study to assess the short- to mid-term efficacy and safety of catheter foam sclerotherapy (CFS) of the great saphenous vein (GSV), including peri-saphenous tumescence infiltration (PST) and intra-saphenous saline irrigation (ISI), in combination with phlebectomy of the varicose tributaries. METHODS: Eighty-eight limbs in 82 patients (19 male, 63 female, mean age 55.7 years) affected by varices related to GSV incompetence were submitted to CFS of the refluxing GSV segment after PST and ISI, combined with phlebectomy of the varicose tributaries...
September 15, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28927220/intraspinosum-middle-meningeal-artery-ligation-a-simple-technique-to-control-bleeding-in-the-middle-fossa-during-the-anterior-transpetrosal-approach
#18
Shunsuke Shibao, Hamid Borghei-Razavi, Kazunari Yoshida
BACKGROUND: Although the greater superficial petrosal nerve (GSPN) is an important landmark of the anterior transpetrosal approach (ATPA), bleeding from the interdural space around the foramen spinosum (FS), the GSPN, and the foramen ovale impedes the identification of the GSPN, during epidural dissection in the ATPA. OBJECTIVE: To describe the technique of intraspinosum middle meningeal artery (MMA) ligation, which enables us to control bleeding from the interdural space...
April 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28926877/-clinical-effects-of-repair-of-wounds-in-fingers-after-electrical-burn-with-wrist-perforator-free-flaps
#19
H P Di, C D Xia, P P Xing, Q Li, D W Han, J D Xue, D Y Cao
Objective: To explore the clinical effects of repair of wounds in the fingers after electrical burn with wrist perforator free flaps. Methods: Twelve patients (13 fingers) with electrical burn were hospitalized in our burn ward from January 2016 to January 2017. After radical debridement, the size of wounds ranged from 5.0 cm×2.0 cm to 10.0 cm×7.0 cm. Wounds with size below or equal to 6.0 cm ×2.5 cm were repaired with free flaps based on the superficial palmar branch of radial artery, with flap area ranging from 2...
September 20, 2017: Zhonghua Shao Shang za Zhi, Zhonghua Shaoshang Zazhi, Chinese Journal of Burns
https://www.readbyqxmd.com/read/28925736/chronological-changes-in-tip-cells-during-sprouting-angiogenesis-of-development-of-the-retinal-vasculature-in-newborn-mice
#20
Chang Sik Cho, Sang-Mok Lee, Byung Joo Lee, Dong Hyun Jo, Jin Hyoung Kim, Jeong Hun Kim, Young Suk Yu
PURPOSE: To investigate a sequential chronological change in tip cells during the development of the retinal vasculature in newborn mice. MATERIALS AND METHODS: Newborn C57BL/6 mice were used for this study. To elucidate the patterns in the developing retinal vasculature, histology, and immunohistochemistry-antiplatelet endothelial cell adhesion molecule-1, anticollagen type IV, isolectin IB4-were performed on sections of mouse retina on postnatal days (P)-4, -8, and -12...
November 2017: Current Eye Research
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