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Venous anatomy

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https://www.readbyqxmd.com/read/29154821/heterotaxy-syndrome-and-associated-arrhythmias-in-pediatric-patients
#1
Mary C Niu, Heather A Dickerson, Judson A Moore, Caridad de la Uz, Santiago O Valdés, Jeffrey J Kim, David E Bard, Shaine A Morris, Christina Y Miyake
BACKGROUND: Heterotaxy Syndrome (HS) is a rare disorder with complex anatomy involving misarrangements of the cardiac conduction system. Arrhythmias may be related to anatomic variations and contribute to morbidity. OBJECTIVE: This study investigated the associations between arrhythmias, anatomy, and outcomes in a large HS cohort. METHODS: A single center retrospective review of patients diagnosed with HS ≤ 21 years of age was performed...
November 14, 2017: Heart Rhythm: the Official Journal of the Heart Rhythm Society
https://www.readbyqxmd.com/read/29149371/imaging-patterns-of-venous-related-brain-injury-in-children
#2
Luke L Linscott, James L Leach, Blaise V Jones, Todd A Abruzzo
Venous-related brain injury is a common form of cerebrovascular injury in children and encompasses a diverse group of cerebrovascular diagnoses. The purpose of this pictorial essay is to introduce the relevant anatomy, pathophysiology and various imaging patterns of venous-related cerebral injury in children. Unifying concepts to better understand the effects of venous hypertension in the developing brain will be emphasized. These unifying concepts will provide the imaging professional with a conceptual framework to better understand and confidently identify imaging patterns of venous-related cerebral injury...
December 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/29149032/optimal-line-and-tube-placement-in-very-preterm-neonates-an-audit-of-practice
#3
Daragh Finn, Hannah Kinoshita, Vicki Livingstone, Eugene M Dempsey
BACKGROUND: Placement of endotracheal tubes (ETTs) and umbilical catheters (UCs) is essential in very preterm infant care. The aim of this study was to assess the effect of an educational initiative to optimize correct placement of ETTs and UCs in very preterm infants. METHODS: A pre-post study design, evaluating optimal radiological position of ETTs and UCs in the first 72 h of life in infants <32 weeks gestational age (GA) was performed. Baseline data was obtained from a preceding 34-month period...
November 17, 2017: Children
https://www.readbyqxmd.com/read/29147777/how-i-do-it-selective-amygdalohippocampectomy-via-a-navigated-temporobasal-approach-when-veins-forbid-elevation-of-the-temporal-lobe
#4
Daniel Delev, Johannes Schramm, Hans Clusmann
BACKGROUND: Selective amygdalohippocampectomy is an effective treatment option for mesial temporal lobe epilepsy associated with hippocampal sclerosis. METHODS: To describe and emphasize potential pitfalls during selective amygdalohippocampectomy via a modified navigated temporobasal approach, in cases, where temporal basal veins hinder the required elevation of the temporal lobe. CONCLUSIONS: Selective amygdalohippocampectomy via navigated temporobasal approach is a safe procedure that can reduce the rate of visual field deficits by avoiding damage of optic radiation...
November 16, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29146727/primary-intraventricular-haemorrhage-due-to-rupture-of-giant-varix-of-the-basal-vein-of-rosenthal-in-a-patient-with-long-standing-direct-ccf-angiographic-features-and-treatment-considerations
#5
Chinmay P Nagesh, Aneesh Mohimen, Santhosh K Kannath, Jayadevan E Rajan
Direct carotid cavernous fistulae (CCF) are often detected early and treated promptly resulting in a paucity of literature regarding its long-term evolution. We present a case of high flow post-traumatic direct CCF that was neglected for over 6 years and presented with a rare manifestation of primary intraventricular haemorrhage. Occlusions of the primary venous outlets likely resulted in engorgement of the deep venous system. The segmental anatomy of the shunting basal vein is critical to the clinical presentation and may range from basal ganglia or brainstem oedema/infarctions to uniquely, as in our case, isolated intraventricular haemorrhage secondary to variceal rupture...
November 16, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29133232/embryological-and-comparative-description-of-the-cephalic-vein-joining-the-external-jugular-vein-a-case-report
#6
R C Araújo, L A S Pires, M L Andrade, M C Perez, C S L Filho, M A Babinski
The cephalic vein arises from the radial end of the dorsal venous arch. It turns around the radial border of the forearm and passes proximally along the arm to the shoulder, where it enters the axillary vein by penetrating the clavipectoral triangle. The cephalic vein is prone to vary at the antecubital fossa, where it forms numerous anastomoses. A male cadaver fixated with a 10% formalin solution was dissected during regular anatomy lessons. It was found that the cephalic vein crossed the upper third of the arm between two fasciculi of the deltoid muscle and reached the shoulder, where it passed above the acromion and crossed the posterior border of the clavicle in order to join the external jugular vein...
November 10, 2017: Morphologie: Bulletin de L'Association des Anatomistes
https://www.readbyqxmd.com/read/29131765/comprehensive-cross-sectional-imaging-of-the-pulmonary-veins
#7
Cameron Hassani, Farhood Saremi
The pulmonary veins carry oxygenated blood from the lungs to the heart, but their importance to the radiologist extends far beyond this seemingly straightforward function. The anatomy of the pulmonary veins is variable among patients, with several noteworthy variant and anomalous patterns, including supernumerary pulmonary veins, a common ostium, anomalous pulmonary venous return, and levoatriocardinal veins. Differences in pulmonary vein anatomy and the presence of variant or anomalous anatomy can be of critical importance, especially for preoperative planning of pulmonary and cardiac surgery...
November 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/29131270/imaging-assessment-of-portal-venous-system-pictorial-essay-of-normal-anatomy-anatomic-variants-and-congenital-anomalies
#8
A Guerra, A M De Gaetano, A Infante, C Mele, M G Marini, E Rinninella, R Inchingolo, L Bonomo
The purpose of this pictorial essay is to describe anatomic variants and congenital anomalies of portal venous system and related liver parenchymal alterations. The imaging findings of some of these entities have been previously described in other articles, however this work encompasses all congenital anomalies of portal venous system with attention to their features on various imaging modalities; in particular we illustrated with detailed pictures all the main portal vein variants, congenital extra- and intra-hepatic porto-systemic venous shunts and portal vein aneurysm...
October 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29128992/mapping-of-hepatic-vasculature-in-potential-living-liver-donors-comparison-of-gadoxetic-acid-enhanced-mr-imaging-using-caipirinha-technique-with-ct-angiography
#9
Kartik Jhaveri, Lijun Guo, Luís Guimarães, Ravi Menezes, Ian McGilvray, Mark Cattral, David Grant
PURPOSE: To retrospectively evaluate gadoxetic acid-enhanced magnetic resonance angiography (MRA) using controlled aliasing in parallel imaging results in higher acceleration (CAIPIRINHA) technique for mapping hepatic vascular anatomy in potential living liver donors, with CT angiography (CTA) as reference standard. METHODS: 82 potential living liver donors who underwent MRA and CTA were enrolled in this HIPAA-compliant IRB-approved study. MRA and CTA images were evaluated by two reviewers in consensus with respect to (1) image quality scores for depiction of the hepatic vessels and (2) accuracy of MRA for determining the hepatic vascular variants with CTA as reference standard...
November 11, 2017: Abdominal Radiology
https://www.readbyqxmd.com/read/29123402/transient-global-amnesia-current-perspectives
#10
REVIEW
David R Spiegel, Justin Smith, Ryan R Wade, Nithya Cherukuru, Aneel Ursani, Yuliya Dobruskina, Taylor Crist, Robert F Busch, Rahim M Dhanani, Nicholas Dreyer
Transient global amnesia (TGA) is a clinical syndrome characterized by the sudden onset of an extraordinarily large reduction of anterograde and a somewhat milder reduction of retrograde episodic long-term memory. Additionally, executive functions are described as diminished. Although it is suggested that various factors, such as migraine, focal ischemia, venous flow abnormalities, and epileptic phenomena, are involved in the pathophysiology and differential diagnosis of TGA, the factors triggering the emergence of these lesions are still elusive...
2017: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/29104737/cardiac-magnetic-resonance-imaging-which-information-is-useful-for-the-arrhythmologist
#11
REVIEW
Elia De Maria, Annachiara Aldrovandi, Ambra Borghi, Letizia Modonesi, Stefano Cappelli
Cardiac magnetic resonance (CMR) is a non-invasive, non-ionizing, diagnostic technique that uses magnetic fields, radio waves and field gradients to generate images with high spatial and temporal resolution. After administration of contrast media (e.g., gadolinium chelate), it is also possible to acquire late images, which make possible the identification and quantification of myocardial areas with scar/fibrosis (late gadolinium enhancement, LGE). CMR is currently a useful instrument in clinical cardiovascular practice for the assessment of several pathological conditions, including ischemic and non-ischemic cardiomyopathies and congenital heart disease...
October 26, 2017: World Journal of Cardiology
https://www.readbyqxmd.com/read/29101075/development-of-patient-spesific-3d-printed-dural-venous-models-for-preoperative-planning
#12
Figen Govsa, Asli Beril Karakas, Mehmet Asim Ozer, Cenk Eraslan
BACKGROUND: Despite significant improvement in clinical care, operative strategies, and technology, neurosurgery is still risky, and optimal preoperative planning and anatomical assessment are necessary to minimize risks of serious complications. Our purpose is to document of dural venous sinuses (DVS) and its variations were identified during routine 3D venography created through three dimensional (3D) models for teaching and learning of complex cerebral anatomy. METHODS: 3D models of the DVS networks were printed...
October 31, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29097175/characteristics-of-patients-and-patterns-of-chronic-venous-disease-of-the-lower-limbs-in-a-referral-hospital-in-cameroon
#13
Marcus Fokou, Boniface Moifo, Emmanuel Fongang, Abel Teyang, Wallinjon Muna
OBJECTIVE: The objective of this study was to investigate the magnitude of chronic venous disease (CVD) in sub-Saharan Africa, specifically the characteristics of the patients, the symptoms, the signs, and the severity. METHODS: From December 2013 to December 2016, a cross-sectional study was conducted of all consecutive patients with CVD aged ≥18 years and attending the outpatient clinic of the Yaoundé General Hospital in Cameroon. We recorded information on demographics, relevant medical history, symptoms, lifestyle, and clinical presentation...
October 30, 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/29092714/pylephlebitis-presenting-as-spontaneous-coronary-sinus-thrombosis-a-case-report
#14
Michael A Hart, Mengistu A Simegn
BACKGROUND: Coronary sinus thrombosis is a rare phenomenon. When identified, it most often is a complication of infective endocarditis or procedural intervention. We present an unusual and unreported case of spontaneous coronary sinus thrombosis as embolic sequela of an intra-abdominal infectious process. CASE PRESENTATION: We report a case of a 61-year-old white woman with a history of end-stage renal disease on hemodialysis, paroxysmal atrial fibrillation not on long-term systemic anticoagulation, and history of recurrent diverticulitis that presented with acute onset abdominal pain and nausea...
November 2, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29079071/occult-spinal-cord-injury-after-blunt-force-trauma-in-a-patient-with-achondroplasia-a-case-report-and-review-of-trauma-management-strategy
#15
Martin Huecker, Zach Harris, Eric Yazel
BACKGROUND: Achondroplastic dwarfism is associated with anatomic abnormalities that can predispose to occult injury and challenges in trauma management. Airway anatomy is problematic due to macrocephaly, midface hypoplasia, and a narrow nasopharynx. Manipulation of the neck is very dangerous due to the high likelihood of preexisting cervicomedullary stenosis. Restrictive lung disease and obstructive sleep apnea may complicate respiratory status. Peripheral and central venous access can be difficult to obtain...
October 2017: Journal of Emergency Medicine
https://www.readbyqxmd.com/read/29078890/novel-mouse-models-of-hepatic-artery-infusion
#16
Minhyung Kim, Daniel T Fisher, Colin A Powers, Emmanuel M Gabriel, Alexis M Korman, Sandra Sexton, Andrei V Gudkov, Joseph J Skitzki
BACKGROUND: The liver has unique anatomy in that most blood flow to normal hepatocytes is derived from the portal venous system, whereas liver tumors obtain their nutrient blood supply exclusively from the hepatic artery. The focused arterial delivery of anticancer agents to liver tumors has been performed for decades; however, preclinical models to standardize drug regimens and examine novel agents have been lacking. The purpose of this study was to establish preclinical hepatic artery infusion (HAI) models in a mouse and to evaluate the safety and delivery capability of the models...
November 2017: Journal of Surgical Research
https://www.readbyqxmd.com/read/29076743/depiction-of-lower-limb-venous-anatomy-in-patients-undergoing-interventional-deep-venous-reconstruction-the-role-of-balanced-steady-state-free-precession-mri
#17
Vincent G Helyar, Yuri Gupta, Lyndall Blakeway, Geoff Charles-Edwards, Konstantinos Katsanos, Narayan Karunanithy
OBJECTIVES: This study evaluates the use of balanced steady-state free precession MRI (bSSFP-MRI) in the diagnostic work-up of patients undergoing interventional deep venous reconstruction (I-DVR). Intravenous digital subtraction angiography (IVDSA) was used as the gold-standard for comparison to assess disease extent and severity. METHODS: A retrospective comparison of bSSFP-MRI to IVDSA was performed in all patients undergoing both examinations for treatment planning prior to I-DVR...
November 3, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/29067910/first-rib-and-venous-anomalies-anatomical-challenges-for-transvenous-implantation-of-cardiac-electronic-devices
#18
Ernest W Lau
Atypical anatomy may be encountered unexpectedly and undiagnosed in clinical practice, and this is especially important during the performance of interventional procedures such as transvenous implantation of cardiac electronic devices. The body of the first rib can be absent. If this not noticed, pneumo-/haemothroax may be induced during subclavian vein puncture as the needle may enter the first intercostal space rather than the costo-clavicular angle. The cephalic vein may pursue a supraclavicular course, the axillary vein may drain into an intercostal vein rather than the axillary vein, and the entire length of the axillary-subclavian-brachio-cephalic vein may be absent...
July 2017: Indian Pacing and Electrophysiology Journal
https://www.readbyqxmd.com/read/29064797/the-use-of-injection-corrosive-method-in-the-study-of-extraorganic-bloodstream-of-human-intact-stomach
#19
V H Hryn, N L Svintsytska, V Piliuhin, R L Ustenko, A L Katsenko
INTRODUCTION: Functional and morphological state of the organs and tissues mainly depends on the adequate blood supply and lymph movement, function of which is integrated by the nervous system. A crucial link in the morphogenesis of the gastric lesions is the intensity of vascularization, as well as the fact that in its venous part the gastric bloodstream is almost entirely included into the portal vein system. Knowledge of the anatomy of the normal human stomach conditions is of indispensable practical value, since they are required for the proper interpretation of the pathological changes occurred in it...
2017: Wiadomości Lekarskie: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29059025/change-in-perception-of-sclerotherapy-results-after-exposure-to-pre-post-intervention-photographs
#20
Fabricio R Santiago, Mario Piscoya, Yung-Wei Chi
Objective To evaluate patients' self-perception of cosmetic improvement before and after they were presented with pre- and postprocedure photographs after sclerotherapy with 75% dextrose. Methods Treatments included sclerotherapy of reticular and varicose veins using 75% dextrose. All treated limbs were photographed and classified according to Clinical, Etiology, Anatomy, and Pathology classification and Venous Clinical Severity Score pre- and posttreatment. The patients were queried before and after viewing the photos during these visits and indicated if they were very unsatisfied, dissatisfied, satisfied, or very satisfied...
January 1, 2017: Phlebology
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