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Venous anatomy

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https://www.readbyqxmd.com/read/28441639/antecubital-fossa-venous-access-for-right-heart-catheterization
#1
Omar Waheed, Abhinav Sharma, Maninder Singh, Edo Kaluski
With the advance of radial access and ulnar access there has been an increased interest in performing right heart catheterization (RHC) and right-heart based procedures via antecubital venous access. Our purpose is to describe the venous anatomy of the upper extremities, technique, equipment, and cost for employing this approach. Reported also is the international experience based on publications assessing procedural success, complications, fluoroscopy time and radiation dose, access-site compression time, and time to ambulation...
May 2017: Journal of Invasive Cardiology
https://www.readbyqxmd.com/read/28411709/chronic-refractory-venous-ulcer-exacerbated-by-a-congenital-pelvic-arteriovenous-malformation-successfully-treated-by-transarterial-onyx-embolization
#2
Naiem Nassiri, Dustin T Crystal, Catherine Hoyt, Randy Shafritz
Congenital arteriovenous malformations (AVMs) are an important but often neglected cause of lower extremity venous hypertension. A case of a chronic refractory venous stasis ulcer of the lower extremity exacerbated by a pelvic AVM is presented. Healing of the ulcer was achieved at 2 months without recurrence at 1 year after superselective ethylene vinyl alcohol copolymer (Onyx 34; ev3, Covidien, Plymouth, Minn) embolization of the AVM nidus. Chronic venous arterialization should be considered in cases of refractory, nonhealing venous ulcers...
May 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28411699/outcomes-of-a-single-center-experience-with-classification-and-treatment-of-endothermal-heat-induced-thrombosis-after-endovenous-ablation
#3
Lindsey M Korepta, Jennifer J Watson, M Ashraf Mansour, Christopher M Chambers, Robert F Cuff, Jason D Slaikeu, Peter Y Wong
OBJECTIVE: Endothermal heat-induced thrombosis (EHIT) is a known complication of endothermal venous ablation procedures. EHIT can lead to deep vein thrombosis/pulmonary embolism, which cause significant disability and, rarely, death. Other studies have evaluated risk factors for EHIT. There is an accepted grading system for EHIT, but there is no consensus on treatment type, duration, or follow-up. We retrospectively evaluated all cases of EHIT after radiofrequency ablation or endovenous laser ablation at our institution during a 7-year period, focusing on classification, treatment, and outcomes of EHIT...
May 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28411697/veclose-trial-12-month-outcomes-of-cyanoacrylate-closure-versus-radiofrequency-ablation-for-incompetent-great-saphenous-veins
#4
Nick Morrison, Kathleen Gibson, Michael Vasquez, Robert Weiss, Daniel Cher, Monte Madsen, Andrew Jones
OBJECTIVE: Endovenous cyanoacrylate closure (CAC) is a new U.S. Food and Drug Administration-approved therapy for treatment of clinically symptomatic venous reflux in saphenous veins. The device is indicated for the permanent closure of lower extremity superficial truncal veins, such as the great saphenous vein (GSV). Early results from a randomized trial of CAC have been reported previously. Herein we report 1-year outcomes. METHODS: There were 222 subjects with symptomatic GSV incompetence randomly assigned to receive either CAC (n = 108) or radiofrequency ablation (RFA; n = 114)...
May 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28405771/sacral-epidural-arteriovenous-fistulas-imitators-of-spinal-dural-arteriovenous-fistulas-with-different-pathologic-anatomy-report-of-three-cases-and-review-of-the-literature
#5
Jan-Karl Burkhardt, Michael M Safaee, Aaron J Clark, Michael T Lawton
BACKGROUND: Sacral epidural arteriovenous fistulas (eAVFs) are rare and often misdiagnosed because of the incongruence between the thoracic level of clinical deficits and the sacral location of the offending pathology. Failure to diagnose this lesion delays treatment, resulting in prolonged venous hypertension in the cord, progressive neurological deterioration, and decreased chances of recovery. METHODS: A single-institution case series and the published literature were reviewed...
April 12, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28384848/surgical-implications-of-portal-vein-variations-and-liver-segmentations-a-recent-update
#6
REVIEW
Showkathali Iqbal, Raiz Iqbal, Faiz Iqbal
The Couinaud's liver segmentation is based on the identification of portal vein bifurcation and origin of hepatic veins. It is widely used clinically, because it is better suited for surgery and is more accurate in localizing and monitoring various intra parenchymal lesions. According to standard anatomy, the portal vein bifurcates into right and left branches; the left vein drains segment II, III and IV and the right vein divides into two secondary branches - the anterior portal vein drains segments V and VIII, and the posterior drains segments VI and VII...
February 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28379667/laparoscopic-donor-nephrectomy-in-unusual-venous-anatomy-donor-and-recepient-implications
#7
Avinash Bapusaheb Patil, Tarun Dilip Javali, Harohalli K Nagaraj, S M L Prakash Babu, Arvind Nayak
OBJECTIVES: Laparoscopic donor nephrectomy is now a commonly performed procedure in most of renal transplantation centers. However, the suitability of laparoscopy for donors with abnormal venous anatomy is still a subject of debate. MATERIALS AND METHODS: Between August 2007 and August 2014, 243 laparoscopic donor nephrectomies were performed in our institution. All donors were evaluated with preoperative three-dimensional spiral computed tomography (CT) angiography Thirteen (5...
April 6, 2017: International Braz J Urol: Official Journal of the Brazilian Society of Urology
https://www.readbyqxmd.com/read/28377943/expert-evaluation-of-a-chicken-tissue-based-model-for-teaching-ultrasound-guided-central-venous-catheter-insertion
#8
Akiva Nachshon, John D Mitchell, Ariel Mueller, Valerie M Banner-Goodspeed, Jakob I McSparron
BACKGROUND: Ultrasound-guided central venous catheterization (CVC) is a commonly performed procedure which carries significant risks for complications. Current models used for simulation-based teaching are expensive and may not replicate tissue feel and ultrasound qualities of human tissues. We aimed to evaluate a tissue model composed of chicken breast and balloons and compare it to a commercially available mannequin. METHODS: Forty attending physicians from four departments with extensive CVC experience were enrolled...
January 2017: Journal of Education in Perioperative Medicine: JEPM
https://www.readbyqxmd.com/read/28377283/the-combined-transpetrosal-approach-anatomic-study-and-literature-review
#9
REVIEW
M Burhan Janjua, James P Caruso, Jeffrey P Greenfield, Mark M Souweidane, Theodore H Schwartz
The combined petrosal approach is an essential technique for the skull base neurosurgeon. In this manuscript, the authors provide a brief history of the development of this approach, technical instruction with consideration of important landmarks, and a literature review of the broad range of clinical applications for this approach. The combined petrosal approach was performed bilaterally in 6 cadaveric injected specimens. The relationship of middle and posterior fossa dura, venous sinuses, cranial nerves (CNs), and the vascular anatomy were studied...
April 1, 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28367761/segregating-bodily-isomerism-or-heterotaxy-potential-echocardiographic-correlations-of-morphological-findings
#10
Cornelia Tremblay, Rohit S Loomba, Peter C Frommelt, Donald Perrin, Diane E Spicer, Carl Backer, Robert H Anderson
BACKGROUND: Bodily isomerism, also referred to as heterotaxy, involves predominantly the thoracic organs, although other organs are usually abnormally positioned. Previously assessed on the basis of splenic anatomy, it is now understood that isomerism is better segregated on the basis of atrial appendage morphology. This allows for anticipation of associated findings. We aimed to assess the accuracy of segregation based on the morphology of the atrial appendages and other structures more easily identified by echocardiography...
April 3, 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28367394/what-s-in-a-name-utilization-of-the-innominate-vein-for-pacemaker-lead-placement-in-the-setting-of-persistent-left-superior-vena-cava
#11
Mohammad-Ali Jazayeri, Rehan Karim
Persistent left superior vena cava (PLSVC) represents the most common thoracic venous anomaly and is an important clinical entity for cardiologists and electrophysiologists, among others. In approximately 30% of cases, a bridging innominate vein connects the left superior vena cava to the right. The present report highlights the value of defining the venous anatomy with a case of dual-chamber pacemaker implantation in the PLSVC with the right ventricular lead placed via the innominate vein. Pertinent considerations for device implantation in the setting of this anomaly are discussed and relevant venography reviewed...
February 26, 2017: Curēus
https://www.readbyqxmd.com/read/28355655/coronary-artery-bypass-surgery-in-diffuse-advanced-coronary-artery-disease-1-year-clinical-and-angiographic-results
#12
Luciana Oliveira Cascaes Dourado, Marcio Sommer Bittencourt, Alexandre Costa Pereira, Nilson Tavares Poppi, Luis Alberto Oliveira Dallan, José Eduardo Krieger, Luiz Antonio Machado Cesar, Luís Henrique Wolff Gowdak
Background Proper treatment of patients with diffuse, severe coronary artery disease (CAD) is a challenge due to its complexity. Thus, data on the outcomes after coronary artery bypass graft (CABG) in this population is scarce. In this study, we aimed to determine the impact of CABG on the clinical and functional status, as well as graft patency in those individuals. Methods Patients with severe and diffuse CAD who underwent incomplete CABG due to complex anatomy or extensive distal coronary involvement were evaluated preoperatively and 1 year after surgery...
March 29, 2017: Thoracic and Cardiovascular Surgeon
https://www.readbyqxmd.com/read/28342263/surgical-pitfalls-of-jejunal-vein-anatomy-in-pancreaticoduodenectomy
#13
Yoshiya Ishikawa, Daisuke Ban, Satoshi Matsumura, Yusuke Mitsunori, Takanori Ochiai, Atsushi Kudo, Shinji Tanaka, Minoru Tanabe
BACKGROUND: Pancreaticoduodenectomy (PD) is the standard surgical procedure for treating pancreatic head cancers. Considerable knowledge of proximal jejunal and pancreatic vein anatomy is a prerequisite for performing PD surgery safely, yet there appear to be no detailed descriptions of first and second jejunal vein (J1V, J2V) anatomy available in the literature. STUDY DESIGN: Adults with hepatobiliary-pancreatic disease underwent multidetector-row computed tomography with intravenous contrast (n=155), and SYNAPSE 3D(®) (Fujifilm Medical, Tokyo, Japan) was used to generate 3D-CT images...
March 24, 2017: Journal of Hepato-biliary-pancreatic Sciences
https://www.readbyqxmd.com/read/28328591/accidental-cannulation-of-persistent-left-superior-vena-cava-in-a-case-of-absent-right-internal-jugular-vein-role-of-ultrasonography-and-x-ray
#14
Nilesh B Sonawane, Falguni Rajendra Shah, Prakash Jagadish Gawankar
Persistent left superior vena cava is a rare vascular anatomical variant. Although ultrasonography has facilitated the process of central venous catheterization, it cannot be used to locate the tip of a catheter. Postprocedure chest X-ray is desirable for locating the course and tip of the catheter. In our case, initial ultrasonography demonstrated the absence of the right internal jugular vein. This prompted insertion of a central venous catheter on the left side of the neck in the presence of normal vascular anatomy...
March 15, 2017: A & A Case Reports
https://www.readbyqxmd.com/read/28321560/may-thurner-syndrome-old-acquaintance-new-perspective-case-report
#15
Anja Boc, Vinko Boc, Matija Kozak
May-Thurner syndrome (MTS) results from a frequent anatomic variant in which compression of the left common iliac vein between the body of the fifth lumbar vertebra and the pulsating right common iliac artery can cause deep venous thrombosis (DVT) of the left lower limb. While anticoagulation remains the mainstay treatment of acute DVT, catheter-directed thrombolysis combined with stenting provides a safe and effective method for relieving acute symptoms and preventing postthrombotic syndrome in patients with MTS...
March 20, 2017: Wiener Klinische Wochenschrift
https://www.readbyqxmd.com/read/28321268/caudal-fluoroscopy-to-guide-venous-access-for-pacemaker-device-implantation-should-this-now-be-standard-practice
#16
Hitesh C Patel, Carl Hayward, Shane Nanayakkara, Archer Broughton, Justin A Mariani
We describe a technique that uses both posterior-anterior and caudal fluoroscopy to achieve venous access for pacemaker device implantation. A significant advantage of this technique is the ability to clearly demarcate both the anatomy of venous drainage and the lung border. We would encourage all centres to adopt this technique as a safe approach to venous access.
2017: Heart Asia
https://www.readbyqxmd.com/read/28321171/presacral-venous-bleeding-during-mobilization-in-rectal-cancer
#17
Jose Enrique Casal Núñez, Vincenzo Vigorita, Alejandro Ruano Poblador, Ana María Gay Fernández, Maria Ángeles Toscano Novella, Nieves Cáceres Alvarado, Lucinda Pérez Dominguez
AIM: To analyze the anatomy of sacral venous plexus flow, the causes of injuries and the methods for controlling presacral hemorrhage during surgery for rectal cancer. METHODS: A review of the databases MEDLINE(®) and Embase™ was conducted, and relevant scientific articles published between January 1960 and June 2016 were examined. The anatomy of the sacrum and its venous plexus, as well as the factors that influence bleeding, the causes of this complication, and its surgical management were defined...
March 7, 2017: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/28316994/multiple-factors-involved-in-the-pathogenesis-of-white-matter-lesions
#18
REVIEW
Jing Lin, Dilong Wang, Linfang Lan, Yuhua Fan
White matter lesions (WMLs), also known as leukoaraiosis (LA) or white matter hyperintensities (WMHs), are characterized mainly by hyperintensities on T2-weighted or fluid-attenuated inversion recovery (FLAIR) images. With the aging of the population and the development of imaging technology, the morbidity and diagnostic rates of WMLs are increasing annually. WMLs are not a benign process. They clinically manifest as cognitive decline and the subsequent development of dementia. Although WMLs are important, their pathogenesis is still unclear...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28316309/high-resolution-ct-angiogram-for-lower-extremity-vein-mapping
#19
Mark P Wright, Matthew R Smeds, Lonnie Wright, Ahsan T Ali
High-resolution CT angiogram (CTA) has replaced traditional diagnostic angiography as the main preoperative imaging modality for vascular surgery patients. Although the use of CTA is increasing for arterial imaging, it has not been used routinely for vein mapping. The goal of this study was to evaluate the accuracy of CTA for venous anatomy and compare it to a standard venous duplex ultrasound (DUS). When the vein was used for bypass, the quality and size of the vein were evaluated in the operating room. As part of a preoperative workup before lower extremity revascularization, 16 patients underwent a CTA followed by a DUS...
March 1, 2017: American Surgeon
https://www.readbyqxmd.com/read/28300678/magnetic-resonance-imaging-of-internal-jugular-veins-in-multiple-sclerosis-inter-observer-agreement-and-comparison-with-doppler-ultrasound-examination
#20
S J Laukontaus, J Pekkola, J Numminen, T Kagayama, M Lepäntalo, M Färkkilä, S Atula, P Tienari, M Venermo
OBJECTIVES: Doppler ultrasound (US) has been widely used to evaluate the cervical venous system of multiple sclerosis (MS) patients according to the hypothesis of chronic cerebrospinal venous insufficiency (CCSVI) with contradictory results. Venous anatomy and pathology can be examined with less operator-dependent magnetic resonance imaging (MRI). DESIGN: To assess the inter-observer agreement in measuring internal jugular vein (IJV) cross-sectional area (CSA) in MR-images and to explore the agreement between US and MRI in the detection of calibres of ≤ 0...
March 11, 2017: Annals of Vascular Surgery
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