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Venous hypertension

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https://www.readbyqxmd.com/read/28341509/dialysis-access-hemorrhage-access-rescue-from-a-surgical-emergency
#1
Tazo Inui, Valy Boulom, Dennis Bandyk, John S Lane, Erik Owens, Andrew Barleben
OBJECTIVE: Hemorrhage from a dialysis access can be a life-threatening condition. This study details our experience using access rescue strategies, including in situ graft replacement, primary repair, or conversion to an autogenous fistula; coupled with treatment of central vein occlusion to maintain access usage in patients presenting with conduit hemorrhage. METHODS: During a 3-yr period (2012-2014), 26 patients (14 women, 12 men) on chronic hemodialysis were treated for access conduit bleeding (n=18) or life-threatening hemorrhage (n=8); located in the upper extremity (n=23) or thigh (n=3)...
March 21, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28339414/update-on-the-application-of-optic-nerve-sheath-fenestration
#2
Hui Chen, Qian Zhang, Song Tan, Huazhu Fu, Bradley K Farris, Zhenglin Yang
BACKGROUND: With the ongoing development of surgical procedures and instruments, the safety of optic nerve sheath fenestration (ONSF) has been improved. OBJECTIVE: Through the past three decades, progress has been made in preventing visual loss from chronic optic nerve swelling in idiopathic intracranial hypertension (IIH), secondary intracranial hypertension and local optic nerve diseases. We now review the updated application of ONSF in those diseases. METHODS: The application of ONSF in papilledema due to IIH, secondary intracranial hypertension to cerebral venous sinus occlusion, Cryptococcal meningitis, and intracranial mass or tumors is reviewed...
March 23, 2017: Restorative Neurology and Neuroscience
https://www.readbyqxmd.com/read/28337892/idiopathic-intracranial-hypertension-in-a-paediatric-population-a-retrospective-observational-study-on-epidemiology-symptoms-and-treatment
#3
M Barbagallo, G Vitaliti, F Greco, P Pavone, N Matin, G Panta, R Lubrano, R Falsaperla
Idiopathic intracranial hypertension (IIH) is a disorder of unknown origin, which is characterized by elevated intracranial pressure (ICP) without underlying etiological evidence of neurological disease. The purpose of the current study was to evaluate epidemiological features, clinical presentation, diagnostic findings and treatment of sixteen children (7 males and 9 females) with IIH. Medical records of the patients were obtained from the University Paediatric Hospital of Catania, Italy. Clinical features, investigations and treatment approaches were retrieved...
January 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28335998/point-shear-wave-elastography-to-evaluate-and-monitor-changing-portal-venous-pressure-in-patients-with-decompensated-cirrhosis
#4
Hao Han, Jian Yang, Yu-Zheng Zhuge, Ming Zhang, Min Wu
This study evaluated whether the stiffness of the liver and spleen, measured using the point shear wave elastography (pSWE) technique, correlates with portal venous pressure (PVP) and whether the result extends to estimate the diminishing change in PVP (ΔPVP) in patients with decompensated cirrhosis. We evaluated the data of 67 prospectively enrolled patients who underwent both transjugular intrahepatic portosystemic shunt (TIPS) and pSWE. The stiffness of liver and spleen were evaluated by measuring shear wave velocity (SWV) to determine the statistical correlation with PVP...
March 20, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28332379/a-novel-de-novo-pathogenic-variant-in-foxf1-in-a-newborn-with-alveolar-capillary-dysplasia-with-misalignment-of-pulmonary-veins
#5
Youngeun Ma, Mi Ae Jang, Hye Soo Yoo, So Yoon Ahn, Se In Sung, Yun Sil Chang, Chang Seok Ki, Won Soon Park
Alveolar capillary dysplasia with misalignment of pulmonary veins (ACD/MPV) is an autosomal dominant, fatal developmental disorder of the lungs, with a mortality rate of about 100%. ACD/MPV is caused by mutations in FOXF1. Herein, we describe a newborn boy with ACD/MPV carrying a novel pathogenic variant of FOXF1. The patient developed respiratory distress and severe pulmonary hypertension on the first day of life. Despite aggressive cardiorespiratory management, including veno-venous extracorporeal membrane oxygenation, his condition deteriorated rapidly, and he died within the first month of his life...
May 2017: Yonsei Medical Journal
https://www.readbyqxmd.com/read/28331377/management-of-systemic-lupus-erythematosus-during-pregnancy-challenges-and-solutions
#6
REVIEW
Caroline L Knight, Catherine Nelson-Piercy
Systemic lupus erythematosus (SLE) is a chronic, multisystem autoimmune disease predominantly affecting women, particularly those of childbearing age. SLE provides challenges in the prepregnancy, antenatal, intrapartum, and postpartum periods for these women, and for the medical, obstetric, and midwifery teams who provide their care. As with many medical conditions in pregnancy, the best maternal and fetal-neonatal outcomes are obtained with a planned pregnancy and a cohesive multidisciplinary approach. Effective prepregnancy risk assessment and counseling includes exploration of factors for poor pregnancy outcome, discussion of risks, and appropriate planning for pregnancy, with consideration of discussion of relative contraindications to pregnancy...
2017: Open Access Rheumatology: Research and Reviews
https://www.readbyqxmd.com/read/28330436/venous-compression-syndromes
#7
Joseph M White, Anthony J Comerota
Venous compression syndromes occur due to extrinsic compression causing complications of venous hypertension or venous thrombosis. This review focuses on 4 venous compression syndromes involving the left common iliac vein, subclavian vein, left renal vein, and popliteal vein. Clinical presentation, diagnostic methods, and management options are reviewed. When properly diagnosed and treated, long-term consequences can be avoided.
April 2017: Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28329315/seraphin-haemodynamic-sub-study-the-effect-of-the-dual-endothelin-receptor-antagonist-macitentan-on-haemodynamic-parameters-and-nt-probnp-levels-and-their-association-with-disease-progression-in-patients-with-pulmonary-arterial-hypertension
#8
Nazzareno Galiè, Pavel Jansa, Tomás Pulido, Richard N Channick, Marion Delcroix, Hossein-Ardeschir Ghofrani, Franck-Olivier Le Brun, Sanjay Mehta, Loïc Perchenet, Lewis J Rubin, B K S Sastry, Gérald Simonneau, Olivier Sitbon, Rogério Souza, Adam Torbicki
Aims: The effect of macitentan on haemodynamic parameters and NT-proBNP levels was evaluated in pulmonary arterial hypertension (PAH) patients in the SERAPHIN study. Association between these parameters and disease progression, assessed by the primary endpoint (time to first morbidity/mortality event), was explored. Methods and results: Of the 742 randomized patients, 187 with right heart catheterization at baseline and month 6 participated in a haemodynamic sub-study...
February 28, 2017: European Heart Journal
https://www.readbyqxmd.com/read/28325649/elemental-analysis-of-serum-and-hair-from-pre-eclamptic-south-african-women
#9
K Maduray, J Moodley, C Soobramoney, R Moodley, T Naicker
Pre-eclampsia is a hypertensive disorder that is associated with adverse maternal and perinatal outcomes. It has been proposed that specific trace and macro elements associated with antioxidant activities may also play a contributory role in aetiology of pre-eclampsia. The aim of this study was to measure the concentrations of thirteen different elements in hair and serum samples from women with a diagnosis of pre-eclampsia and compare them with normotensive controls. Venous blood and pubic hair samples were collected from forty-three pre-eclamptic and twenty-three normotensive pregnant women...
March 9, 2017: Journal of Trace Elements in Medicine and Biology
https://www.readbyqxmd.com/read/28324193/hemodynamic-characterization-of-peripheral-arterio-venous-malformations
#10
Sabrina Frey, A Haine, R Kammer, H von Tengg-Kobligk, D Obrist, I Baumgartner
Peripheral arterio-venous malformations (pAVMs) are congenital vascular anomalies that require treatment, due to their severe clinical consequences. The complexity of lesions often leads to misdiagnosis and ill-planned treatments. To improve disease management, we developed a computational model to quantify the hemodynamic effects of key angioarchitectural features of pAVMs. Hemodynamic results were used to predict the transport of contrast agent (CA), which allowed us to compare our findings to digital subtraction angiography (DSA) recordings of patients...
March 21, 2017: Annals of Biomedical Engineering
https://www.readbyqxmd.com/read/28321540/ct-perfusion-imaging-of-the-liver-and-the-spleen-in-patients-with-cirrhosis-is-there-a-correlation-between-perfusion-and-portal-venous-hypertension
#11
Emina Talakić, Silvia Schaffellner, Daniela Kniepeiss, Helmut Mueller, Rudolf Stauber, Franz Quehenberger, Helmut Schoellnast
OBJECTIVES: To correlate hepatic and splenic CT perfusion parameters with hepatic venous pressure gradient (HVPG) measurements in patients with cirrhosis. METHODS: Twenty-one patients with cirrhosis (males, 17; females, 4; mean ± SD age, 57 ± 7 years) underwent hepatic and splenic perfusion CT on a 320-detector row volume scanner as well as invasive measurement of HVPG. Different CT perfusion algorithms (maximum slope analysis and Patlak plot) were used to measure hepatic arterial flow (HAF), portal venous flow (PVF), hepatic perfusion index (HPI), splenic arterial flow (SAF), splenic blood volume (SBV) and splenic clearance (SCL)...
March 20, 2017: European Radiology
https://www.readbyqxmd.com/read/28321380/an-evaluation-of-styloidectomy-as-an-adjunct-or-alternative-to-jugular-stenting-in-idiopathic-intracranial-hypertension-and-disturbances-of-cranial-venous-outflow
#12
J Nicholas Higgins, Mathew R Garnett, John D Pickard, Patrick R Axon
Background The extent to which intracranial venous sinus obstruction contributes to idiopathic intracranial hypertension (IIH) is debated. The extent to which extracranial venous obstruction contributes to IIH is virtually unexplored. This article describes an interventional approach to extracranial venous outflow in a group of patients with severe intractable symptoms. Objective To describe our technique and experience of styloidectomy combined with jugular stenting in the treatment of skull base narrowing of the jugular veins...
April 2017: Journal of Neurological Surgery. Part B, Skull Base
https://www.readbyqxmd.com/read/28319252/physiologic-reduction-of-hepatic-venous-blood-flow-by-the-valsalva-maneuver-decreases-liver-stiffness
#13
Selcan Ipek-Ugay, Heiko Tzschätzsch, Jürgen Braun, Thomas Fischer, Ingolf Sack
OBJECTIVES: Liver stiffness increases after intake of food or water, suggesting that hepatic venous blood flow affects the results of elastographic measurements. This study investigated the correlation between in vivo liver stiffness and hepatic blood flow using the Valsalva maneuver for reducing intrahepatic venous blood flow. METHODS: Intrahepatic changes in venous blood flow were assessed by sonography based on the pulsed wave Doppler velocity, vessel diameter assessment, and blood flow volume measurements in the portal vein and right hepatic vein...
March 20, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28318183/clinico-radiological-correlation-of-nutcracker-syndrome-a-single-centre-experience
#14
Aysel Taktak, Tulin Hakan Demirkan, Banu Acar, Gökçe Gu R, Adem Köksoy, Nermin Uncu, Fatma Ş Çaycı, Nilgu N Çakar
The term nutcracker syndrome (NS) refers to the compression of left renal vein between the aorta and the superior mesenteric artery (SMA) causing renal venous hypertension. The symptoms vary from asymptomatic hematuria to severe pelvic congestion. The purpose of this study is to evaluate the clinical characteristics of patients with NS and the correlation between clinical and laboratory findings with Doppler sonographic measurements. Sixty-three patients were evaluated (19 boys and 44 girls) since January 2004 to January 2014...
April 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28315943/hyperoxia-reduces-oxygen-consumption-in-children-with-pulmonary-hypertension
#15
Long Guo, Prashant Bobhate, Shine Kumar, Karunakar Vadlamudi, Tarek Kaddoura, Mohamed Elgendi, Paula Holinski, James Y Coe, Jennifer Rutledge, Ian Adatia
High inspired oxygen concentration (FiO2 > 0.85) is administered to test pulmonary vascular reactivity in children with pulmonary hypertension (PH). It is difficult to measure oxygen consumption (VO2) if the subject is breathing a hyperoxic gas mixture so the assumption is made that baseline VO2 does not change. We hypothesized that hyperoxia changes VO2. We sought to compare the VO2 measured by a thermodilution catheter in room air and hyperoxia. A retrospective review of the hemodynamic data obtained in children with PH who underwent cardiac catheterization was conducted between 2009 and 2014...
March 18, 2017: Pediatric Cardiology
https://www.readbyqxmd.com/read/28315014/association-of-native-t1-times-with-biventricular-function-and-hemodynamics-in-precapillary-pulmonary-hypertension
#16
Yin Yin Chen, Hong Yun, Hang Jin, De Hong Kong, Yu Liang Long, Cai Xia Fu, Shan Yang, Meng Su Zeng
In precapillary pulmonary hypertension (PH) patients, we sought to (1) investigate the relationship between ventricular insertion point (VIP) T1 times, hemodynamic parameters, and biventricular function, and (2) determine the predictors of anterior and inferior VIP T1 time. Twenty-two patients with precapillary PH underwent 1.5-T cardiac MR, right heart catheterization (RHC), and echocardiography. A group of 10 healthy age- and sex-matched volunteers served as controls. Biventricular function, morphology and mass were obtained from short-axis cine images...
March 17, 2017: International Journal of Cardiovascular Imaging
https://www.readbyqxmd.com/read/28304207/dural-venous-sinus-stenting-for-medically-and-surgically-refractory-idiopathic-intracranial-hypertension
#17
Sudhakar R Satti, Lakshmi Leishangthem, Alejandro Spiotta, M Imran Chaudry
Background Idiopathic intracranial hypertension (IIH) is a syndrome defined by elevated intracranial hypertension without radiographic evidence of a mass lesion in the brain. Dural venous sinus stenosis has been increasingly recognized as a treatable cause, and dural venous sinus stenting (DVSS) is increasingly performed. Methods A 5 year single-center retrospective analysis of consecutive patients undergoing DVSS for medically refractory IIH. Results There were 43 patients with a mean imaging follow-up of 6...
April 2017: Interventional Neuroradiology
https://www.readbyqxmd.com/read/28302503/the-giessen-pulmonary-hypertension-registry-survival-in-pulmonary-hypertension-subgroups
#18
Henning Gall, Janine F Felix, Franziska K Schneck, Katrin Milger, Natascha Sommer, Robert Voswinckel, Oscar H Franco, Albert Hofman, Ralph T Schermuly, Norbert Weissmann, Friedrich Grimminger, Werner Seeger, Hossein A Ghofrani
BACKGROUND: Pulmonary hypertension (PH) is a severe, progressive disease. Although 5 PH subgroups are recognized, reports on survival have focused mainly on pulmonary arterial hypertension (PAH). METHODS: Long-term transplant-free survival and its determinants were investigated in patients with PH (diagnosed by right heart catheterization) within a prospective registry at a single referral center in Giessen, Germany. RESULTS: In total, 2,067 patients were enrolled (PAH, 685 patients [33...
February 17, 2017: Journal of Heart and Lung Transplantation
https://www.readbyqxmd.com/read/28301216/bioidentical-menopausal-hormone-therapy-registered-hormones-non-oral-estradiol%C3%A2-%C3%A2-%C3%A2-progesterone-are-optimal
#19
M L'Hermite
The many advantages of registered bioidentical sex hormones over registered, conventional, non-bioidentical menopausal hormone therapy (MHT) are considered. The transdermal route of estrogen administration avoids excess venous thromboembolic and ischemic stroke events. There is some indication that conjugated equine estrogens are more thrombogenic and most likely induce some hypertensive responses; estradiol might also be superior to conjugated equine estrogens (CEE) in terms of global cardiovascular health...
March 16, 2017: Climacteric: the Journal of the International Menopause Society
https://www.readbyqxmd.com/read/28300675/the-morphofunctional-changes-in-the-wall-of-varicose-veins
#20
Jeļena Birdina, Māra Pilmane, Artūrs Ligers
INTRODUCTION: Varicose vein (VV) disease is a frequently occurring pathology of the lower extremities. Although the pathogenesis of varicosity development is not clearly defined, the final common pathway leading to chronic venous insufficiency is the development of venous hypertension, which is associated with severe changes in the venous wall. The aim of this study was to clarify the histological and immunohistochemical changes in great saphenous veins in chronic venous insufficiency...
March 11, 2017: Annals of Vascular Surgery
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