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Venous anatomy

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https://www.readbyqxmd.com/read/28928613/clarifying-the-anatomy-and-physiology-of-totally-anomalous-systemic-venous-connection
#1
REVIEW
Saurabh Kumar Gupta, Rajnish Juneja, Robert H Anderson, Gurpreet S Gulati, Velayoudam Devagorou
The description of totally anomalous systemic venous connection is limited to case reports. In this review, we seek to clarify anatomic, physiologic, and hemodynamic aspects of this extremely rare anomaly. We also present findings of two patients in whom connection of all the systemic veins was anomalous. In the first patient, with usual atrial arrangement, all systemic veins, including the coronary sinus, were connected anomalously to the morphologically left atrium. Limited left-to-right shunt across an atrial septal defect provided the only source of blood flow to the lungs...
September 2017: Annals of Pediatric Cardiology
https://www.readbyqxmd.com/read/28905984/fetal-intra-abdominal-umbilical-vein-aneurysm
#2
Stefano Raffaele Giannubilo, Angela Pasculli, Alessandro Cecchi, Alessandra Biagini, Andrea Ciavattini
Importance: Fetal umbilical vein aneurysm is an uncommon anomaly that accounts for approximately 4% of umbilical cord abnormalities. The rate of intrauterine fetal death is reported to be approximately 4% to 5%, higher than the background rate of 0.7% that is generally reported during pregnancy. Objective: The aim of this study was to review the pathophysiology, diagnosis, and clinical management of fetal umbilical vein aneurysm. Evidence Acquisition: Advances in high-resolution ultrasound combined with color Doppler and 3-dimensional rendering have contributed to an increased understanding of the fetal venous circulation in recent years...
September 2017: Obstetrical & Gynecological Survey
https://www.readbyqxmd.com/read/28874626/anatomical-variations-of-cervical-vein-drainage-in-candidates-for-neck-surgery
#3
Raoul Borioni, Federico Maspes, Virgilio Baldassarre, Mariano Garofalo
The knowledge of both normal and abnormal anatomy of the veins of the neck may be important for surgeons performing neck surgery, to avoid inadvertent injury to vascular structures. In a 75-year-old man candidated to carotid endarterectomy preoperative CT-scan showed a rare anomaly of the venous drainage in the area of the anterior jugular vein (AJV), that usually begins in the suprahyoid region via the confluence of several superficial veins, to open into the ipsilateral external jugular vein. A large left sided venous trunk, originating from an anomalous proximal confluence with the internal jugular vein, descended in the AJV anatomical position, to cross over the sternum draining into the right subclavian vein...
2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28871557/anatomy-of-the-transverse-mesocolon-based-on-embryology-for-laparoscopic-complete-mesocolic-excision-of-right-sided-colon-cancer
#4
Takeru Matsuda, Yasuo Sumi, Kimihiro Yamashita, Hiroshi Hasegawa, Masashi Yamamoto, Yoshiko Matsuda, Shingo Kanaji, Taro Oshikiri, Tetsu Nakamura, Satoshi Suzuki, Yoshihiro Kakeji
BACKGROUND: To treat colon cancer via complete mesocolic excision (CME) with central vascular ligation (CVL), dissection along the embryologic fusion planes is required. However, this surgery is difficult, especially for right-sided colon cancer, because the anatomy and embryology of the transverse mesocolon are not familiar to gastrointestinal surgeons. METHODS: In this video article, the anatomic details of the transverse mesocolon based on embryology are illustrated with a focus on the venous anatomy...
September 5, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28859024/spontaneous-resolution-of-venous-aneurysms-after-transarterial-embolization-of-a-variant-superior-sagittal-sinus-dural-arteriovenous-fistula-case-report-and-literature-review
#5
Weizheng Song, Hong Sun, Jin Liu, Li Liu, Jia Liu
We present a rare case of dural arteriovenous fistula (DAVF) with subarachnoid hemorrhage and intraventricular hemorrhage due to its venous aneurysms. A 63-year-old woman was admitted for a sudden loss of consciousness. Computed tomography angiograph, magnetic resonance imaging angiography, and digital subtraction angiography revealed a superior sagittal sinus DAVF. The fistula was fed by the left middle meningeal artery and left internal carotid artery, and was drained by a right vein of Trolard, the superficial Sylvian vein, deep Sylvian vein, and basal vein to the vein of Galen...
September 2017: Neurologist
https://www.readbyqxmd.com/read/28857726/initial-assessment-of-a-novel-delivery-system-nudel%C3%A2-%C3%A2-for-the-covered-cheatham-platinum-stent
#6
Gareth J Morgan, Damien Kenny, Christopher Duke, Kevin P Walsh, Shakeel A Qureshi
Aims We sought to evaluate the first-in-man use of a new system for implantation of covered stents in patients with complex structural and CHD. Methods and results Retrospective data were collected of the first 13 NuDEL™ delivery systems used in patients. The NuDEL™ comprises a covered Cheatham-Platinum stent mounted on a balloon-in-balloon and pre-loaded in a long delivery sheath. Data were collected from three centres in the United Kingdom and Ireland. A total of 13 covered stents were delivered via 12 NuDEL™ delivery systems in 12 patients...
October 2017: Cardiology in the Young
https://www.readbyqxmd.com/read/28844205/ultrasound-guided-central-venous-catheter-placement-a-structured-review-and-recommendations-for-clinical-practice
#7
REVIEW
Bernd Saugel, Thomas W L Scheeren, Jean-Louis Teboul
The use of ultrasound (US) has been proposed to reduce the number of complications and to increase the safety and quality of central venous catheter (CVC) placement. In this review, we describe the rationale for the use of US during CVC placement, the basic principles of this technique, and the current evidence and existing guidelines for its use. In addition, we recommend a structured approach for US-guided central venous access for clinical practice. Static and real-time US can be used to visualize the anatomy and patency of the target vein in a short-axis and a long-axis view...
August 28, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/28842229/intraoperative-navigation-is-associated-with-reduced-blood-loss-during-c1-2-posterior-cervical-fixation
#8
Frederick L Hitti, Eric D Hudgins, H Isaac Chen, Neil R Malhotra, Eric L Zager, James M Schuster
OBJECTIVE: Traumatic injuries, degenerative/rheumatologic conditions, tumors, or infections of the upper cervical spine may in certain circumstances require surgical stabilization. C1 lateral mass screws (Harms technique) in combination with C2 instrumentation (pars, pedicle, translaminar screws) have become a mainstay of surgical treatment. The surgical anatomy of the C1 lateral mass can be challenging especially with the robust venous plexus that often causes significant bleeding with exposure of the C1-C2 articular complex...
August 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28838024/-vascular-complications-and-emergencies-within-oncologic-abdominal-surgery-what-knowledge-and-skills-are-essential-for-the-visceral-surgeon
#9
Hanno Matthaei, Valeri Schmidt, Vittorio Branchi, Frauke Verrel, Jörg C Kalff, Arne Koscielny
Background Continuous improvements in perioperative and neoadjuvant therapy concepts nowadays permit more extensive tumor resections with curative intention. In patients with arterial or venous tumour involvement in preoperative imaging, physicians with expertise in vascular surgery should be involved in the planning phase of the operation. Unexpected vascular complications during abdominal surgery demand prompt management by the oncological surgeon. However, skills in vascular surgery are still not obligatory for the visceral surgeon in training...
August 2017: Zentralblatt Für Chirurgie
https://www.readbyqxmd.com/read/28818230/symptomatic-compression-of-right-iliac-vein-after-right-iliac-artery-stent-placement
#10
Lindsay Young, Jeontaik Kwon, Mariano Arosemena, Dawn Salvatore, Paul DiMuzio, Babak Abai
Right lower extremity edema can be a presenting symptom of iliocaval compression syndrome, even in the absence of deep vein thrombosis. It has been reported in idiopathic and rarely, iatrogenic, cases secondary to variant anatomy, arterial stents, and bony hardware. Classically seen in the more confined left common iliac vein as May-Thurner syndrome, it is rare on the right side. We report an unusual case of acute right common iliac vein compression after right iliac stent placement leading to symptomatic right leg edema...
September 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28818219/contemporary-outcomes-after-venography-guided-treatment-of-patients-with-may-thurner-syndrome
#11
Johnathon C Rollo, Steven M Farley, Adam Z Oskowitz, Karen Woo, Brian G DeRubertis
OBJECTIVE: Patients with May-Thurner syndrome (MTS) present with a spectrum of findings ranging from mild left leg edema to extensive iliofemoral deep venous thrombosis (DVT). Whereas asymptomatic left common iliac vein (LCIV) compression can be seen in a high proportion of normal individuals on axial imaging, the percentage of these persons with symptomatic compression is small, and debate exists about the optimal clinical and diagnostic criteria to treat these lesions in patients with symptomatic venous disease...
September 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28818215/age-is-not-a-barrier-to-good-outcomes-after-varicose-vein-procedures
#12
Danielle C Sutzko, Elizabeth A Andraska, Andrea T Obi, Mikel Sadek, Lowell S Kabnick, Thomas W Wakefield, Nicholas H Osborne
BACKGROUND: The Vascular Quality Initiative (VQI) Varicose Vein Registry (VVR) represents a patient-centered database launched in January 2015. Previous work describing overall trends and outcomes of varicose vein procedures across the United States demonstrates a benefit from these procedures. The existing gaps in evidence to support current and future Medicare coverage of varicose vein procedures necessitate further description of clinical outcomes in patients ≥65 years old compared with the population <65 years old...
September 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28805947/penile-neurovascular-structure-revisited-immunohistochemical-studies-with-three-dimensional-reconstruction
#13
G N Yin, S-H Park, M-J Choi, A Limanjaya, K Ghatak, N N Minh, J Ock, K-M Song, J-K Ryu, J-K Suh
Penile erection is a neurovascular phenomenon that requires well coordinated and functional interaction between penile vascular and nervous systems. In order to provide a useful tool to examine pathologic changes in the erectile tissue, mainly focusing on penile neurovascular dysfunction, we established the technique to determine the differential distribution of endothelial cells, smooth muscle cells, pericytes, and nerve fibers in the mouse penis using immunohistochemical staining with three-dimensional reconstruction...
August 14, 2017: Andrology
https://www.readbyqxmd.com/read/28803414/laparoscopic-reversal-of-mini-gastric-bypass-to-original-anatomy-for-severe-postoperative-malnutrition
#14
Laurent Genser, Antoine Soprani, Malek Tabbara, Jean-Michel Siksik, Jean Cady, Sergio Carandina
PURPOSE: Malnutrition after mini-gastric bypass (MGB) is a rare and dreaded complication with few data available regarding its surgical management. We aim to report the feasibility, safety, and results of laparoscopic reversal of MGB to normal anatomy (RMGB) in case of severe and refractory malnutrition syndrome after intensive nutritional support (SRMS). METHODS: A 10-year retrospective chart review was performed on patients who underwent RMGB (video included) for SRMS following MGB...
August 12, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28783102/the-pulmonary-circulation-in-the-single-ventricle-patient
#15
REVIEW
Amanda Hauck, Nicolas Porta, Steven Lestrud, Stuart Berger
In recent decades, survival of children with complex congenital heart disease has improved considerably. Specifically, children with a variety of congenital heart defects resulting in 'single ventricle' physiology can now undergo palliative surgery that allows survival beyond the neonatal period, and in many cases into adulthood, despite having a single functional ventricular pumping chamber supplying both the pulmonary and systemic circulation. Our growing understanding of the functionally univentricular heart has resulted in freedom from Fontan failure of >50% at 25 years post-Fontan...
August 7, 2017: Children
https://www.readbyqxmd.com/read/28779788/transjugular-venous-approach-for-endovascular-intervention-in-upper-extremity-dialysis-access-fistulae-and-grafts
#16
REVIEW
Hector Ferral, Marc J Alonzo
A transjugular venous access is an alternative approach for endovascular intervention in upper-extremity dialysis arteriovenous fistulae and grafts. The transjugular access is recommended for patients who have an unfavorable anatomy for the direct arm access approach. Ultrasound evaluation of the arteriovenous access is essential before intervention and includes evaluation of the inflow artery and outflow vein diameters, arteriovenous anastomosis, and the entire outflow vein, specifically looking into potential problem areas...
December 2016: Seminars in Vascular Surgery
https://www.readbyqxmd.com/read/28770484/high-resolution-mr-lymphangiography-for-planning-lymphaticovenous-anastomosis-treatment-a-single-centre-experience
#17
Maria Antonietta Mazzei, Francesco Gentili, Francesco Giuseppe Mazzei, Paolo Gennaro, Duccio Guerrieri, Andrea Nigri, Guido Gabriele, Elisabetta Weber, Alfonso Fausto, Giuseppe Botta, Luca Volterrani
PURPOSE: This article illustrates the feasibility of MR lymphangiography (MRL) for imaging lymphatic vessels in patients with lymphedema, its accuracy in distinguishing lymphatic vessels from veins, and its utility for planning Lymphaticovenous anastomosis (LVA) treatment. MATERIALS AND METHODS: We prospectively enrolled 30 patients (24 women, range 18-70, 17 cases of lower limb lymphedema, 6 cases of primary lymphedema). All the patients underwent MRL, using a 1...
August 2, 2017: La Radiologia Medica
https://www.readbyqxmd.com/read/28739473/a-defined-protocol-to-resolving-cannulation-failure-during-endovenous-ablation-procedures
#18
Scarlett Hao, Samantha Cox, Thomas S Monahan, Tanya Flohr, Rajabrata Sarkar
During endovenous ablation for the treatment of insufficient veins, failure to cannulate the entirety of the refluxing vein with the treatment catheter prevents technically successful ablation. In this technique report, we describe a defined protocol to overcome cannulation failure of axial veins for endovenous ablation. This protocol utilizes commonly available adjunctive techniques including ultrasound-guided digital compression, the use of a guidewire, the use of a guide catheter, and placement of a second puncture site in a step-wise fashion to overcome varying degrees of tortuosity or obstruction...
July 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28733849/novel-pacing-strategies-for-heart-failure-management
#19
REVIEW
Jordan S Leyton-Mange, Theofanie Mela
Cardiac resynchronization therapy has emerged as the gold standard for heart failure patients with left ventricular systolic dysfunction and electrical dyssynchrony from an intrinsic intraventricular conduction delay or right ventricular pacing. However, the limits imposed by the coronary sinus venous anatomy restrict the applicability of the technology for many potential recipients. Furthermore, conventional resynchronization, by virtue of utilizing a single site of epicardial origin for left ventricular activation, is non-physiological...
August 2017: Current Treatment Options in Cardiovascular Medicine
https://www.readbyqxmd.com/read/28728467/a-potential-therapeutic-pitfall-in-the-treatment-of-venous-reflux-due-to-variant-planar-anatomy-of-varicose-segments
#20
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
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