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Venous anatomy

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https://www.readbyqxmd.com/read/28728467/a-potential-therapeutic-pitfall-in-the-treatment-of-venous-reflux-due-to-variant-planar-anatomy-of-varicose-segments
#1
Sinan Deniz, Derya Tureli, Burcu Akpinar, Levent Oguzkurt
Purpose To elaborate on a planar anatomic variant of great saphenous vein as a potential therapeutic pitfall in the treatment of venous reflux. Materials and methods Lower extremity veins in 568 limbs with great saphenous vein insufficiency were sonographically mapped. A rather overlooked variation, the saphenous bow, was studied with emphasis on anatomic clarification and its involvement in venous insufficiency. Results This variation, observed in 5.1% (n = 29) of limbs, comprised two segments; one uninterrupted great saphenous vein proper coursing throughout saphenous compartment and one extra-compartmental segment originating distally from and proximally fusing with it...
January 1, 2017: Phlebology
https://www.readbyqxmd.com/read/28726308/the-collateral-venous-system-in-late-pregnancy-a-systematic-review-of-the-literature
#2
REVIEW
Aimee Humphries, Peter Stone, S Ali Mirjalili
INTRODUCTION: Recent literature has reported an association between maternal supine sleep position and stillbirth during late pregnancy. In this position the gravid uterus almost completely obstructs the inferior vena cava. A small number of women experience supine hypotension, thought to be due in part to inadequate collateral venous circulation. The aim of this paper is to review the literature describing the anatomy of the collateral venous system and in particular the azygos system, the abdominal portion of which has not been well studied...
July 20, 2017: Clinical Anatomy
https://www.readbyqxmd.com/read/28722300/digital-subtraction-angiography-dynavision-in-pretreatment-planning-for-embolization-of-dural-arterio-venous-fistulas
#3
Alex Botsford, Jai Jai Shiva Shankar
BACKGROUND AND PURPOSE: We have found DSA-Dynavision with multiplanar reconstruction very helpful in understanding the complex anatomy and planning of treatment of carotico-cavernous fistulas. The purpose of our study was to examine whether using DSA-Dynavision in pretreatment planning results in better outcome after endovascular treatment of dural arterio-venous fistulas (dAVFs). METHODS: Patients with dAVF treated with endovascular embolization were retrospectively identified from our interventional neuroradiology database...
July 19, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/28696848/an-interventionist-s-guide-to-endocrine-consultations
#4
Eric J Monroe, Benjamin W Carney, Christopher R Ingraham, Guy E Johnson, Karim Valji
Endocrinopathies are a heterogeneous group of disorders often resulting from pathologic sources of hormone production. When the clinical scenario, laboratory testing, and noninvasive imaging fail to aid confident identification of the source of hormone excess, endocrine venous sampling may localize obscure lesions to guide subsequent treatment. Knowledge of basic hormone signaling pathways, common pathophysiologic disruptions of these pathways, and serologic evaluation fosters informed conversations with referring physicians and effective patient selection...
July 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28681477/optimal-image-reconstruction-using-multidetector-row-computed-tomography-to-facilitate-cardiac-resynchronization-therapy
#5
Yu Izawa, Shumpei Mori, Tatsuya Nishii, Hiroki Matsuzoe, Hiroshi Imada, Hideya Suehiro, Kazuhiko Nakayama, Kensuke Matsumoto, Hidekazu Tanaka, Sei Fujiwara, Koji Fukuzawa, Ken-Ichi Hirata
Preprocedural recognition of the segment of latest mechanical contraction along with the anatomy of the coronary venous system is important for successful and effective cardiac resynchronization therapy. We present a case of ischemic cardiomyopathy who underwent implantation of a cardiac resynchronization therapy device with a defibrillator, which was facilitated by preprocedural computed tomographic images reconstructed to visualize the left ventricular slab and the coronary venous system simultaneously on the cardiac contour...
July 2017: Echocardiography
https://www.readbyqxmd.com/read/28674685/risk-factors-prophylaxis-and-treatment-of-venous-thromboembolism-in-congenital-heart-disease-patients
#6
REVIEW
Michael Silvey, Leonardo R Brandão
Congenital heart disease (CHD) is a common condition in the pediatric population, affecting up to 1% of all live births (i.e., around 40,000 newborns/year in the United States). Although CHD does have a wide range of severity, by the age of 5 years approximately 80% of patients will require at least one surgical intervention to achieve a complete/palliative cardiac repair. Today, in light of their much-improved surgical survival, the care of these patients focuses on morbidity prevention and/or treatment...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28669428/preoperative-evaluation-of-anomalous-pulmonary-venous-connection-using-dual-source-computed-tomography-comparison-with-echocardiography
#7
Li Jiang, Lin-Jun Xie, Zhi-Gang Yang, Ke Shi, Hua-Yan Xu, Rui Li, Kai-Yue Diao, Ying-Kun Guo
PURPOSE: To evaluate the image features and diagnostic agreement for anomalous pulmonary venous connection (APVC) by dual-source computed tomography (DSCT) before surgery when compared with trans-thoracic echocardiography (TTE). MATERIALS AND METHODS: A total of one hundred and twenty-three patients were enrolled in this study. The associated malformation was analyzed between 39 total anomalous pulmonary venous connections (TAPVC) and 84 partial anomalous pulmonary venous connections (PAPVC)...
June 21, 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28667393/-interventional-treatment-of-benign-prostatic-hyperplasia-embolization-of-the-testicular-vein
#8
REVIEW
M Rauch, H Strunk
CLINICAL/METHODICAL ISSUE: Embolization of the testicular veins (Gat-Goren technique) is an interventional procedure for the treatment of benign prostatic hyperplasia (BPH). STANDARD RADIOLOGICAL METHODS: In addition to standard urological procedures, such as transurethral resection of the prostate (TUR-P), arterial embolization of the prostate is considered as the interventional radiological method of choice. METHODICAL INNOVATIONS: Embolization of the testicular veins is technically identical to the embolization of varicoceles in infertile men and represents a less invasive treatment...
June 30, 2017: Der Radiologe
https://www.readbyqxmd.com/read/28662854/female-runner-with-painful-left-thigh-swelling-a-case-of-may-thurner-syndrome
#9
Ziva Petrin, Charles Wowkanech, Anupam N Sinha, Sunny Gupta, Mitesh K Patel
We discuss a case of a female runner who presented with burning left groin and thigh pain and positional swelling after a long run. The workup revealed May-Thurner syndrome. May-Thurner syndrome anatomy is a common anatomical variant present in approximately 20% of the population. Compression of the iliac vein may result in venous stasis in the lower limb with a predisposition to deep venous thrombosis. We identify 4 reported cases of May-Thurner syndrome in female runners and review the importance of diagnosis and appropriate treatment of this condition...
June 27, 2017: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/28653307/complete-right-and-left-sided-thoracic-ducts-associated-with-aberrant-left-vertebral-artery-unreported-case-with-surgical-implications
#10
Nabil Eid, Yuko Ito, Sugiko Futaki, Yoichi Kondo
Anatomy is the keystone to an appropriate understanding of surgical and radiological sciences. Here the authors report on a rare case of complete right- and left-sided thoracic ducts (TDs) associated with aberrant left-vertebral artery (LVA) arising from the aortic arch. The TDs originated from right and left cisterna chyli and terminated separately close to the left venous angle. Superior to the aortic arch, the TDs showed different relationships to the LVA; the right TD was ventral, while the left was dorsal in position...
June 27, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28648652/dialysis-related-parameters-influence-remodeling-in-the-venous-part-of-the-native-arteriovenous-fistula
#11
Tomasz Gołębiowski, Mariusz Kusztal, Krzysztof Letachowicz, Hanna Augustyniak-Bartosik, Maciej Szymczak, Magdalena Krajewska, Wojciech Marcinkowski, Wacław Weyde, Marian Klinger
AIM: The aim of this study was to evaluate the association of hemodynamic parameters related to hemodialysis and antropometric parameters of patients with changes in the venous part of the arteriovenous fistula (AVF) at points of needling. MATERIAL AND METHODS: 242 HD patients (60.3% men), with median age 65 [IQR 56-75] years, on HD treatment for a median of 49 [IQR 20-88] months with functioning fistula were recruited to the study. The history of vascular access, comorbidity, antropometric (BMI, BSA, body composition) and dialysis-related parameters were analyzed...
June 22, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28646147/whole-organ-vascular-casting-and-microct-examination-of-the-human-placental-vascular-tree-reveals-novel-alterations-associated-with-pregnancy-disease
#12
Toluwalope O Junaid, Robert S Bradley, Rohan M Lewis, John D Aplin, Edward D Johnstone
Experimental methods that allow examination of the intact vascular network of large organs, such as the human placenta are limited, preventing adequate comparison of normal and abnormal vascular development in pregnancy disease. Our aims were (i) to devise an effective technique for three-dimensional analyses of human placental vessels; (ii) demonstrate the utility of the technique in the comparison of placental vessel networks in normal and fetal growth restriction (FGR) complicated pregnancies. Radiopaque plastic vessel networks of normal and FGR placentas (n = 12/group) were created by filling the vessels with resin and corroding the surrounding tissues...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28639211/selective-venous-sampling-for-primary-hyperparathyroidism-how-to-perform-an-examination-and-interpret-the-results-with-reference-to-thyroid-vein-anatomy
#13
REVIEW
Takayuki Yamada, Masaya Ikuno, Yasumoto Shinjo, Atsushi Hiroishi, Shoichiro Matsushita, Tsuyoshi Morimoto, Reiko Kumano, Kunihiro Yagihashi, Takuyuki Katabami
Primary hyperparathyroidism (pHPT) causes hypercalcemia. The treatment for pHPT is surgical dissection of the hyperfunctioning parathyroid gland. Lower rates of hypocalcemia and recurrent laryngeal nerve injury imply that minimally invasive parathyroidectomy (MIP) is safer than bilateral neck resection. Current trends in MIP use can be inferred only by reference to preoperative localization studies. Noninvasive imaging studies (typically preoperative localization studies) show good detection rates of hyperfunctioning glands; however, there have also been cases of nonlocalization or discordant results...
June 21, 2017: Japanese Journal of Radiology
https://www.readbyqxmd.com/read/28631148/early-postoperative-imaging-after-non-bariatric-gastric-resection-a-primer-for-radiologists
#14
REVIEW
Massimo Tonolini, Elena Bracchi
Surgical resection represents the mainstay treatment and only potentially curative option for gastric carcinoma, and is increasingly performed laparoscopically. Furthermore, other tumours and selected cases of non-malignant disorders of the stomach may require partial or total gastrectomy. Often performed in elderly patients, gastric resection remains a challenging procedure, with significant morbidity (14-43% complication rate) and non-negligible postoperative mortality (approximately 3%). This paper provides an overview of contemporary surgical techniques for non-bariatric gastric resection, reviews and illustrates the expected postoperative imaging appearances, common and unusual complications after partial and total gastrectomy...
August 2017: Insights Into Imaging
https://www.readbyqxmd.com/read/28624828/unique-imaging-features-enabling-the-prenatal-diagnosis-of-developmental-venous-anomalies-a-persistent-echogenic-brain-lesion-drained-by-a-collecting-vein-in-contrast-with-normal-brain-parenchyma-on-mri
#15
Karina Krajden Haratz, Alon Peled, Boris Weizman, Liat Gindes, Mordechai Tamarkin, Dorit Lev, Dvora Kidron, Liat Ben-Sira, Gustavo Malinger, Tally Lerman-Sagie, Zvi Leibovitz
OBJECTIVE: To describe the prenatal imaging features enabling diagnosis of developmental venous anomalies (DVA). METHODS: Four fetuses with unexplained persistent echogenic parenchymal brain lesions were studied. The evaluation included dedicated neurosonography, fetal MRI, serology for intrauterine infection, screening for coagulation abnormalities, and chromosomal microarray. Postnatal neurodevelopmental follow-up or autopsy results were assessed. RESULTS: DVA presented as very slowly growing echogenic brain lesions without cystic components, calcifications, or structural changes on otherwise normal neurosonographic scans performed at 2- to 3-week intervals...
June 17, 2017: Fetal Diagnosis and Therapy
https://www.readbyqxmd.com/read/28623996/functional-polymorphism-rs1024611-in-the-mcp1-gene-is-associated-with-the-risk-of-varicose-veins-of-lower-extremities
#16
Alexandra S Shadrina, Mariya A Smetanina, Kseniya S Sevost'ianova, Evgenii I Seliverstov, Evgeny A Ilyukhin, Elena N Voronina, Igor A Zolotukhin, Maxim L Filipenko
OBJECTIVE: Monocyte chemoattractant protein 1 (MCP-1) is a chemokine responsible for monocyte, basophil, and T-lymphocyte attraction. Polymorphism rs1024611 located in the regulatory region of the MCP1 gene has previously been shown to be associated with increased MCP-1 production. In our study, we aimed to examine the association of rs1024611 with the risk of primary varicose veins (PVVs) of lower extremities. METHODS: The case group comprised 470 patients with PVVs, and the control group included 269 individuals without a history of chronic venous disease...
July 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28623990/incidence-of-venous-leg-ulcer-healing-and-recurrence-after-treatment-with-endovenous-laser-ablation
#17
William A Marston, Jason Crowner, Ana Kouri, Corey A Kalbaugh
BACKGROUND: The Effect of Surgery and Compression on Healing and Recurrence (ESCHAR) trial previously reported that patients with venous leg ulcers treated with saphenous stripping experienced a significantly reduced incidence of ulcer recurrence compared with patients treated with compression therapy. Most patients with leg ulcers and saphenous insufficiency are currently treated with endovenous thermal ablation (EVTA), but little information is available on the long-term results after EVTA in Clinical, Etiology, Anatomy, and Pathophysiology (CEAP) clinical class 5 (C5) and class 6 (C6) patients...
July 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28623986/double-prepuncture-as-a-valuable-adjunctive-technique-for-complex-endovenous-ablation
#18
Scarlett Hao, Samantha Cox, Thomas S Monahan, Rajabrata Sarkar
OBJECTIVE: The objective of this study was to characterize the technique and to report the results of double prepuncture used during complex radiofrequency ablation (RFA) in cases of treating multiple incompetent veins or encountering focal obstruction to catheter advancement. METHODS: A double prepuncture technique was applied in patients requiring endovascular ablation of multiple veins and patients with great saphenous vein cannulation failure. We treated 13 limbs in 12 patients during a 24-month period with RFA in which the double prepuncture technique was used...
July 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28615805/free-anteromedial-thigh-perforator-flap-complementing-and-completing-the-anterolateral-thigh-flap
#19
Dushyant Jaiswal, Amol Ghalme, Prabha Yadav, Vinaykant Shankhdhar, Akshay Deshpande
OBJECTIVE: Theobjective of this study was to determine the indications, utility, advantages and surgical approach for the anteromedial thigh (AMT) flap. MATERIALS AND METHODS: We reviewed the records of the patients in whom the AMT flap was used for head and neck reconstruction. We use an anterior approach to harvest the anterolateral thigh (ALT) flap with a non-committal straight line incision. This preserves both ALT and AMT flap territories intact, and further decision is based on the intraoperative anatomy of perforator and pedicle...
January 2017: Indian Journal of Plastic Surgery: Official Publication of the Association of Plastic Surgeons of India
https://www.readbyqxmd.com/read/28612147/fluoroscopic-targeting-of-wallstents-and-amplatzer-vascular-plugs-in-sharp-recanalization-of-chronic-venous-occlusions
#20
Minhaj S Khaja, Jeffrey Forris Beecham Chick, Ari D Schuman, Kyle J Cooper, Bill S Majdalany, Wael E Saad, David M Williams
INTRODUCTION/PURPOSE: Sharp recanalization of chronic venous occlusions is usually performed with targeting of wire-capture devices like loop snares or balloons. We describe sharp recanalization of chronic venous occlusions using self-expanding stents and vascular plugs. MATERIAL AND METHODS: We retrospectively reviewed all sharp venous recanalization procedures performed over an 11-month period and found Wallstent and Amplatzer vascular plug (AVP) targeting was performed in 16 patients...
June 13, 2017: Cardiovascular and Interventional Radiology
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