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Venous outflow obstruction

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https://www.readbyqxmd.com/read/27903022/-recanalization-techniques-for-venous-outflow-obstruction
#1
Michael K W Lichtenberg, Houman Jalaie
Deep vein thrombosis (DVT) is associated with a high cost burden for health care systems because of secondary cost intensive complications like pulmonary embolism and especially the post thrombotic syndrome (PTS). The current standard therapy of anticoagulation for DVT therapy has not changed through the years leaving patients especially with iliofemoral vein thrombus on a high-risk situation for developing PTS. Current study situation for endovascular treatment of iliofemoral DVT treatment gives a rationale for active thrombus removal using catheter directed therapy (CDT) or pharmacomechanical thrombectomy (PMT) which improves valvular vein function and luminal patency reducing the potential complication of PTS...
November 2016: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27876287/mid-term-outcomes-of-common-congenital-heart-defects-corrected-through-a-right-subaxillary-thoracotomy
#2
Guoying An, Hongyu Zhang, Shanguang Zheng, Weixin Wang, Liming Ma
OBJECTIVE: To evaluate the mid-term outcomes of the correction of various congenital heart defects through a right subaxillary thoracotomy. METHODS: Between June 2004 and April 2014, all eligible patients were those with a common congenital heart defect corrected via an approach through a right subaxillary thoracotomy. There were 836 patients (male 417, female 419; median age, 3.5 years; median weight 13.6kg) with ventricular septal defect (VSD) closure (523 patients), atrial septal defect (ASD) closure (235 patients), partial atrioventricular canal (PAVC) correction (55 patients), mild tetralogy of Fallot (TOF) (23 patients)...
February 17, 2016: Heart, Lung & Circulation
https://www.readbyqxmd.com/read/27767958/noncavernous-arteriovenous-shunts-mimicking-carotid-cavernous-fistulae
#3
Chai Kobkitsuksakul, Pakorn Jiarakongmun, Ekachat Chanthanaphak, Sirintara Pongpech
PURPOSE: The classic symptoms and signs of carotid cavernous sinus fistula or cavernous sinus dural arteriovenous fistula (AVF) consist of eye redness, exophthalmos, and gaze abnormality. The angiography findings typically consist of arteriovenous shunt at cavernous sinus with ophthalmic venous drainage with or without cortical venous reflux. In rare circumstances, the shunts are localized outside the cavernous sinus, but mimic symptoms and radiography of the cavernous shunt. We would like to present the other locations of the arteriovenous shunt, which mimic the clinical presentation of carotid cavernous fistulae, and analyze venous drainages...
November 2016: Diagnostic and Interventional Radiology: Official Journal of the Turkish Society of Radiology
https://www.readbyqxmd.com/read/27751879/can-preeclampsia-be-considered-a-renal-compartment-syndrome-a-hypothesis-and-analysis-of-the-literature
#4
David G Reuter, Yuk Law, Wayne C Levy, Stephen P Seslar, R Eugene Zierler, Mark Ferguson, James Chattra, Tim McQuinn, Lenna L Liu, Mark Terry, Patricia S Coffey, Jane A Dimer, Coral Hanevold, Joseph T Flynn, F Bruder Stapleton
The morbidity and mortality associated with preeclampsia is staggering. The physiology of the Page kidney, a condition in which increased intrarenal pressure causes hypertension, appears to provide a unifying framework to explain the complex pathophysiology. Page kidney hypertension is renin-mediated acutely and ischemia-mediated chronically. Renal venous outflow obstruction also causes a Page kidney phenomenon, providing a hypothesis for the increased vulnerability of a subset of women who have what we are hypothesizing is a "renal compartment syndrome" due to inadequate ipsilateral collateral renal venous circulation consistent with well-known variation in normal venous anatomy...
September 15, 2016: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/27742430/non-contrast-enhanced-mr-angiography-in-the-diagnosis-of-budd-chiari-syndrome-bcs-compared-with-digital-subtraction-angiography-dsa-preliminary-results
#5
Chun Yang, Ceng Li, Mengsu Zeng, Xin Lu, Jingjing Li, Jiali Wang, Muhammad Umair Sami, Kai Xu
Non-CE MRA techniques (true steady-state free-precession, SSFP) have been used effectively for the selective visualization of the portal venous system and inferior vena cava. Budd-Chiari Syndrome (BCS) encompasses a number of conditions that cause the obstruction of the hepatic outflow tract from the small hepatic veins to the junction of the inferior vena cava (IVC) and right atrium. The purpose of this study was to diagnose BCS with IVC obstruction using respiratory triggered three-dimensional (3D) true SSFP with T-SLIP and compare to digital subtraction angiography (DSA)...
October 11, 2016: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/27681331/the-spectrum-of-histologic-findings-in-hepatic-outflow-obstruction
#6
Raul S Gonzalez, Michael A Gilger, Won Jae Huh, Kay Washington
Context .- Cardiac hepatopathy and Budd-Chiari syndrome are 2 forms of hepatic venous outflow obstruction with different pathophysiology but overlapping histologic findings, including sinusoidal dilation and centrilobular necrosis. Objective .- To determine whether a constellation of morphologic findings could help distinguish between the 2 and could suggest the diagnoses in previously undiagnosed patients. Design .- We identified 26 specimens with a diagnosis of cardiac hepatopathy and 23 with a diagnosis of Budd-Chiari syndrome...
September 28, 2016: Archives of Pathology & Laboratory Medicine
https://www.readbyqxmd.com/read/27656864/budd-chiari-syndrome-causing-acute-liver-failure-a-multicenter-case-series
#7
Justin Parekh, Vlad M Matei, Alejandro Canas-Coto, Daniel Friedman, William M Lee
BACKGROUND: Budd-Chiari syndrome (BCS) is a rare disease resulting from obstruction of the hepatic venous outflow tract that typically presents with abdominal pain, jaundice and ascites without frank liver failure. However, BCS may also evolve more rapidly to acute liver failure (ALF-BCS). AIMS: To describe the clinical features, treatment and outcomes of ALF due to BCS and compare our results with those in the published literature. METHODS: Twenty of the 2,300 patients enrolled in the Acute Liver Failure Study Group (ALFSG) registry since 1998, presented with a clinical diagnosis of BCS...
September 22, 2016: Liver Transplantation
https://www.readbyqxmd.com/read/27634954/comparison-of-venous-sinus-manometry-gradients-obtained-while-awake-and-under-general-anesthesia-before-venous-sinus-stenting
#8
Kyle M Fargen, Alejandro M Spiotta, Madison Hyer, Jonathan Lena, Raymond D Turner, Aquilla S Turk, Imran Chaudry
INTRODUCTION: Venous sinus stenting is a popular treatment strategy for patients with high venous sinus pressure gradients across a site of outflow obstruction. Little is known about the effect of anesthesia on venous sinus pressure measurements. OBJECTIVE: To compare venous manometry performed in patients under general anesthesia and while awake. METHODS: A prospective database was accessed to retrospectively identify patients who had undergone venous sinus stenting...
September 15, 2016: Journal of Neurointerventional Surgery
https://www.readbyqxmd.com/read/27633031/low-frequency-of-v617f-mutation-in-jak2-gene-in-indian-patients-with-hepatic-venous-outflow-obstruction-and-extrahepatic-portal-venous-obstruction
#9
Praveer Rai, Pankaj Kumar, Swapnil Mishra, Rakesh Aggarwal
BACKGROUND: Hepatic venous outflow tract obstruction (HVOTO) and extrahepatic portal venous obstruction (EHPVO) are important causes of portal hypertension and related complications in India. Both these conditions result from splanchnic venous thrombosis. In recent years, a V617F somatic mutation in Janus kinase 2 (JAK2) gene which is highly specific for myeloproliferative disorders has been detected in 40 % to 50 % and 30 % to 35 % of Western patients with HVOTO and EHPVO, respectively...
September 2016: Indian Journal of Gastroenterology: Official Journal of the Indian Society of Gastroenterology
https://www.readbyqxmd.com/read/27621751/inferior-vena-cava-stenosis-induced-sinusoidal-obstructive-syndrome-after-living-donor-liver-transplantation
#10
Batsaikhan Bat-Erdene, Sergelen Orgoi, Erdene Sandag, Ulzii-Orshikh Namkhai, Bat-Ireedui Badarch, Batsaikhan Batsuuri
The sinusoidal obstructive syndrome (SOS) is a complication that usually follows hematopoietic stem cell transplantation. It is also known as veno-occlusive disease, which is a rare complication of living donor liver transplantation (LDLT). Herein, we reported a 34 year-old female patient presenting SOS after LDLT. Its underlying cause was presumed to be associated with liver abscess and subsequent inferior vena cava stenosis. SOS led to graft failure, thus requiring retransplantation with a deceased donor liver graft...
August 2016: Korean Journal of Hepato-biliary-pancreatic Surgery
https://www.readbyqxmd.com/read/27516340/long-term-outcomes-of-stent-placement-for-hepatic-venous-outflow-obstruction-in-adult-liver-transplantation-recipients
#11
Hee Ho Chu, Nam-Joon Yi, Hyo-Cheol Kim, Kwang-Woong Lee, Kyung-Suk Suh, Hwan Jun Jae, Jin Wook Chung
The purpose of this study was to evaluate the long-term outcomes of stent placement for a hepatic venous outflow obstruction in adult liver transplantation recipients. From June 2002 to March 2014, 23 patients were confirmed to have a hepatic venous outflow obstruction after liver transplantation (18 of 789 living donors [2.3%] and 5 of 449 deceased donors [1.1%]) at our institute. Among these patients, 16 stenotic lesions in 15 patients (12 males, 3 females; mean age: 51.7 years) underwent stent placement...
August 12, 2016: Liver Transplantation
https://www.readbyqxmd.com/read/27507647/characteristics-of-hepatocellular-carcinoma-in-egyptian-patients-with-primary-budd-chiari-syndrome
#12
Mohammad Sakr, Sara M Abdelhakam, Hany Dabbous, Amr Hamed, Zeinab Hefny, Waleed Abdelmoaty, Mohamed Shaker, Mohamed Elgharib, Ahmed Eldorry
BACKGROUND AND AIM: Budd-Chiari syndrome (BCS) is caused by hepatic venous outflow obstruction. This work aimed at analyzing characteristics and factors associated with development of hepatocellular carcinoma (HCC) in patients with primary BCS. METHODS: 348 Egyptian BCS patients were included. They were presented to the Budd-Chiari Study Group of Ain Shams University Hospital. BCS was confirmed using abdominal Doppler US. Abdominal magnetic resonance imaging (MRI), MR venography, and/or multislice computed tomography (CT) were performed to confirm all diagnoses and to assess vascular anatomy...
August 10, 2016: Liver International: Official Journal of the International Association for the Study of the Liver
https://www.readbyqxmd.com/read/27471977/imaging-of-intracranial-pressure-disorders
#13
John Holbrook, Amit M Saindane
: Intracranial pressure (ICP) is the pressure inside the bony calvarium and can be affected by a variety of processes, such as intracranial masses and edema, obstruction or leakage of cerebrospinal fluid, and obstruction of venous outflow. This review focuses on the imaging of 2 important but less well understood ICP disorders: idiopathic intracranial hypertension and spontaneous intracranial hypotension. Both of these ICP disorders have salient imaging findings that are important to recognize to help prevent their misdiagnosis from other common neurological disorders...
July 27, 2016: Neurosurgery
https://www.readbyqxmd.com/read/27467004/budd-chiari-syndrome-current-perspectives-and-controversies
#14
L Liu, X-S Qi, Y Zhao, H Chen, X-C Meng, G-H Han
Budd-Chiari syndrome (BCS) is a rare disorder caused by hepatic venous outflow obstruction with a wide spectrum of etiologies. Clinical manifestations are so heterogeneous that the diagnosis should be considered in any patients with acute or chronic liver disease. Therapeutic modalities for BCS have improved dramatically during the last few years. The concept of a step-wise treatment strategy has been established, including anticoagulation, thrombolysis, percutaneous recanalization, transjugular intrahepatic portosystemic shunt, surgery and liver transplantation...
July 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/27444939/validation-of-a-hemodynamic-model-for-the-study-of-the-cerebral-venous-outflow-system-using-mr-imaging-and-echo-color-doppler-data
#15
G Gadda, A Taibi, F Sisini, M Gambaccini, S K Sethi, D T Utriainen, E M Haacke, P Zamboni, M Ursino
BACKGROUND AND PURPOSE: A comprehensive parameter model was developed to investigate correlations between cerebral hemodynamics and alterations in the extracranial venous circulation due to posture changes and/or extracranial venous obstruction (stenosis). The purpose of this work was to validate the simulation results by using MR imaging and echo-color Doppler experimental blood flow data in humans. MATERIALS AND METHODS: To validate the model outcomes, we used supine average arterial and venous extracerebral blood flow, obtained by using phase-contrast MR imaging from 49 individuals with stenosis in the acquisition plane at the level of the disc between the second and third vertebrae of the left internal jugular vein, 20 with stenosis in the acquisition plane at the level of the disc between the fifth and sixth vertebrae of the right internal jugular vein, and 38 healthy controls without stenosis...
July 21, 2016: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/27371935/long-term-follow-up-after-endovascular-treatment-of-hepatic-venous-outflow-obstruction-following-liver-transplantation
#16
Maheswaran Pitchaimuthu, Garrett R Roll, Zergham Zia, Simon Olliff, Homoyoon Mehrzad, James Hodson, Bridget K Gunson, M Thamara P R Perera, John R Isaac, Paolo Muiesan, Darius F Mirza, Hynek Mergental
Hepatic venous outflow obstruction (HVOO) is a rare complication after liver transplantation (LT) associated with significant morbidity and reduced graft survival. Endovascular intervention has become the first-line treatment for HVOO, but data on long-term outcomes are lacking. We have analysed outcomes after endovascular intervention for HVOO in 905 consecutive patients who received 965 full-size LT at our unit from January 2007 to June 2014. There were 27 (3%) patients who underwent hepatic venogram for suspected HVOO, with persistent ascites being the most common symptom triggering the investigation (n = 19, 70%)...
October 2016: Transplant International: Official Journal of the European Society for Organ Transplantation
https://www.readbyqxmd.com/read/27336340/-remote-results-of-veno-venous-bypass-operations-in-post-thrombotic-disease
#17
A V Pokrovsky, I M Ignat'ev, E G Gradusov
The present study was aimed at analyzing the remote results of the operation of cross-over autovenous bypass at terms varying from 2 to 28 years in a total of 68 patients presenting with unilateral post-thrombotic occlusive lesions of iliac veins and in 12 patients operated on for obstruction of the femoral vein (saphenopopliteal bypass grafting). The obtained findings showed that a decisive factor of successful cross-over bypass grafting was a sufficient diameter of the autovenous transplant (not less than 7-8 mm)...
2016: Angiologii︠a︡ i Sosudistai︠a︡ Khirurgii︠a︡, Angiology and Vascular Surgery
https://www.readbyqxmd.com/read/27318051/the-value-of-hemodynamic-measurements-by-air-plethysmography-in-diagnosing-venous-obstruction-of-the-lower-limb
#18
Ralph L M Kurstjens, Mark A F de Wolf, Sarah A Alsadah, Carsten W K P Arnoldussen, Rob H W Strijkers, Irwin M Toonder, Cees H A Wittens
OBJECTIVE: Air plethysmography (APG) is a functional, noninvasive test that can assess volumetric changes in the lower limb and might therefore be used as a diagnostic tool in chronic deep venous disease. However, use of APG in chronic deep venous obstructive disease remains debatable. This study assessed the clinical value of APG in identifying chronic deep venous obstruction. METHODS: All patients referred to our tertiary, outpatient clinic between January 2011 and August 2013 with chronic venous complaints and suspected outflow obstruction underwent an outflow fraction (OF), ejection fraction (EF), and residual volume fraction (RVF) test using APG...
July 2016: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/27249222/budd-chiari-syndrome-focus-on-surgical-treatment
#19
Masaaki Hidaka, Susumu Eguchi
Budd-Chiari syndrome (BCS) is caused by an obstruction in the hepatic venous outflow tract at various levels from small hepatic veins to the inferior vena cava (IVC) due to thrombosis or fibrous sequelae. This rare disease mainly affects young adults. Risk factors have been identified and patients often have multiple risk factors. Myeloproliferative diseases of atypical presentation account for nearly 50% of patients in Europe and North America countries. Multistep management is required for such patients. Interventional revascularization and transjugular intrahepatic portosystemic shunt procedure are indicated after initial anticoagulation therapy, whereas IVC plasty using a patch graft is indicated for obstruction of the IVC...
June 1, 2016: Hepatology Research: the Official Journal of the Japan Society of Hepatology
https://www.readbyqxmd.com/read/27190864/budd-chiari-syndrome-as-an-initial-manifestation-of-systemic-lupus-erythematosus
#20
Jayabal Pandiaraja, Arumugam Sathyaseelan
Budd- Chiari syndrome is caused by obstruction of hepatic venous outflow. There are numerous causes for Budd-Chiari syndrome. One of the causes is systemic lupus erythematosus due to antiphospholipid antibodies. Only few cases have reported Budd-Chiari syndrome as an initial manifestation of systemic lupus erythematosus (SLE). This is a case report of Budd-Chiari syndrome due to SLE.
April 2016: Journal of Clinical and Diagnostic Research: JCDR
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