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Normal hepatic doppler ultrasound

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https://www.readbyqxmd.com/read/27896406/evaluation-of-rex-shunt-on-cavernous-transformation-of-the-portal-vein-in-children
#1
Ruo-Yi Wang, Jun-Feng Wang, Xiao-Gang Sun, Qian Liu, Jia-Long Xu, Qi-Gang Lv, Wei-Xiu Chen, Jin-Liang Li
BACKGROUND: Children with cavernous transformation of the portal vein (CTPV) develop severe complications from prehepatic portal hypertension, such as recurrent variceal bleeding and thrombocytopenia. In this study, we reported the results of 30 children with symptomatic CTPV that were treated by a Rex shunt. The effectiveness of this surgical approach was evaluated. METHODS: A retrospective review was performed of 30 children aged between 3 and 18 years with CTPV, who underwent a Rex shunt between 2008 and 2015...
November 28, 2016: World Journal of Surgery
https://www.readbyqxmd.com/read/27625785/liver-transplantation-in-a-patient-with-complete-portal-vein-thrombosis-is-there-a-surgical-way-out-a-case-report
#2
Tommaso Maria Manzia, Laura Fazzolari, Matteo Manuelli, Marco Pellicciaro, Leonardo Baiocchi, Giuseppe Tisone
INTRODUCTION: Due to the complexity of the surgical procedure portal vein thrombosis (PVT) has long been considered an absolute contraindication to liver transplantation (LT). The presence of a large splenorenal shunt (SRS) could make portal anastomosis a valid option. PRESENTATION OF CASE: We report the case of a 37-year-old female patient with Grade III PVT and a large SRS, who underwent orthotopic LT. Liver was implanted using a 1992-Belghiti piggyback technique and portal anastomosis was performed using the large spleno-renal shunt...
November 2016: Annals of Medicine and Surgery
https://www.readbyqxmd.com/read/27563495/transjugular-intrahepatic-portosystemic-shunt-dysfunction-concordance-of-clinical-findings-doppler-ultrasound-examination-and-shunt-venography
#3
Joshua M Owen, Ron Charles Gaba
OBJECTIVES: The objective of this study was to evaluate the concordance between clinical symptoms, Doppler ultrasound (US), and shunt venography for the detection of stent-graft transjugular intrahepatic portosystemic shunt (TIPS) dysfunction. MATERIALS AND METHODS: Forty-one patients (M:F 30:11, median age 55 years) who underwent contemporaneous clinical exam, Doppler US, and TIPS venography between 2003 and 2014 were retrospectively studied. Clinical symptoms (recurrent ascites or variceal bleeding) were dichotomously classified as present/absent, and US and TIPS venograms were categorized in a binary fashion as normal/abnormal...
2016: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/27547868/use-of-systemic-vasodilators-for-the-management-of-doppler-ultrasound-arterial-abnormalities-after-orthotopic-liver-transplantation
#4
Kayvan Mohkam, Florian Fanget, Benjamin Darnis, Brahim Harbaoui, Agnès Rode, Bruno Charpiat, Christian Ducerf, Jean-Yves Mabrut
BACKGROUND: Doppler ultrasound (DUS) arterial abnormalities (DAA) after orthotopic liver transplantation (OLT) often represent a sign of hepatic artery (HA) complication (HAC). The standard management of DAA involves computed tomographic angiography (CTA) followed by invasive vascular intervention (IVI) or observation. We evaluated the contribution of systemic vasodilators (SVD) to the management of DAA after OLT. METHODS: Between 2005 and 2015, 91 of 514 OLT recipients developed DAA (defined by HA resistive index [HARI] <0...
December 2016: Transplantation
https://www.readbyqxmd.com/read/27468207/doppler-ultrasonography-in-living-donor-liver-transplantation-recipients-intra-and-post-operative-vascular-complications
#5
REVIEW
Omar Abdelaziz, Hussein Attia
Living-donor liver transplantation has provided a solution to the severe lack of cadaver grafts for the replacement of liver afflicted with end-stage cirrhosis, fulminant disease, or inborn errors of metabolism. Vascular complications remain the most serious complications and a common cause for graft failure after hepatic transplantation. Doppler ultrasound remains the primary radiological imaging modality for the diagnosis of such complications. This article presents a brief review of intra- and post-operative living donor liver transplantation anatomy and a synopsis of the role of ultrasonography and color Doppler in evaluating the graft vascular haemodynamics both during surgery and post-operatively in accurately defining the early vascular complications...
July 21, 2016: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/27137481/effect-of-sevoflurane-anaesthesia-on-hepatic-blood-flow-in-infants-with-obstructive-hepatobiliary-disease
#6
Z-J Zhou, X Wang, Z Song, K-R Dong, S Zheng
BACKGROUND: Currently most studies on anaesthetic effects on hepatic blood flow of cirrhotic patients have been performed on adults or experimental animals. We performed this study to evaluate the effect of sevoflurane anaesthesia on hepatic blood flow in infants with obstructive jaundice by Doppler ultrasound. METHODS: Forty-four infants with biliary atresia (1-3 months of age) scheduled for a Kasai procedure were enrolled. Hepatic blood flow was calculated by Doppler ultrasound measurements before induction, and after inhalation of 2% and 3% sevoflurane...
September 2016: Acta Anaesthesiologica Scandinavica
https://www.readbyqxmd.com/read/27133713/congenital-intrahepatic-portosystemic-shunt-diagnosed-during-intrauterine-life
#7
Camila Vieira Bellettini, Rafaela Wagner, Aleocídio Sette Balzanelo, André Luis de Souza Andretta, Arthur Nascimento de Moura, Catia Carolina Fabris, Eduardo Maranhão Gubert
OBJECTIVE: To report a patient with prenatal diagnosis of portosystemic shunt; a rare condition in humans. CASE DESCRIPTION: 17-day-old female infant admitted for investigation of suspected diagnosis of portosystemic shunt, presumed in obstetric ultrasound. The hypothesis was confirmed after abdominal angiography and liver Doppler. Other tests such as echocardiography and electroencephalogram were performed to investigate possible co-morbidities or associated complications, and were normal...
September 2016: Revista Paulista de Pediatria: Orgão Oficial da Sociedade de Pediatria de São Paulo
https://www.readbyqxmd.com/read/27042553/hepatic-venous-waveform-splenoportal-and-damping-index-in-liver-cirrhosis-correlation-with-child-pugh-s-score-and-oesophageal-varices
#8
Neha Antil, Binit Sureka, Mahesh Kumar Mittal, Amita Malik, Bhupender Gupta, Brij Bhushan Thukral
INTRODUCTION: Clinical assessment of chronic liver disease is done by Modified Child Pugh's and Model for end-stage liver disease scoring system. Measurement of hepatic venous pressure gradient (HVPG) and Upper GI Endoscopy are considered the gold standards for measurement of portal hypertension in cirrhotics. There is a need for non-invasive evaluation of portal hypertension. Ultrasonography with colour and spectral Doppler evaluation may be an effective, rapid and inexpensive alternative...
February 2016: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/26556108/the-critical-importance-of-hepatic-venous-blood-flow-doppler-assessment-for-patients-in-shock
#9
Jonathan Hulin, Pierre Aslanian, Georges Desjardins, Mustapha Belaïdi, André Denault
Hepatic venous blood flow can be easily obtained using bedside ultrasound with either transthoracic or transesophageal echocardiography. Six critically ill patients with shock associated with absent or significantly reduced hepatic venous blood flow in the presence of normal or increased pulmonary venous flow are presented. In all these patients, the etiology of shock was secondary to increased resistance to venous return from either an intraabdominal process or through extrinsic or intrinsic occlusion of the proximal inferior vena cava or right atrium...
March 1, 2016: A & A Case Reports
https://www.readbyqxmd.com/read/26465196/hepatic-vein-and-portal-vein-doppler-ultrasound-of-maternal-liver-in-normal-pregnancy
#10
Mustafa Fatih Erkoc, Aylin Okur, Mustafa Kara, Emel Caglayan, Halil Ibrahim Serin, Sukru Mehmet Erturk, Fatma Gundogdu, Seyhan Karacavus
OBJECTIVE: The purpose of our study was to evaluate the changes occurring in maximum flow velocity and waveform patterns of the portal and hepatic veins during pregnancy in second and third trimesters. METHODS: A total of 204 patients were randomly divided into the study and control groups. The control group was classified as group I; the study group was divided into two groups: group II, second trimester pregnancy (14-26 weeks, n = 91) and group III, third trimester pregnancy (26-40 weeks, n = 63)...
November 23, 2015: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/26438090/-ultrasound-elastography
#11
REVIEW
R S Goertz
Noninvasive, ultrasound-based methods for visualizing and measuring tissue elasticity are becoming more and more common in routine practice. Using hepatic shear wave elastography, cut-off levels can help to detect the degree of relevant fibrosis (F ≥ 2) with a diagnostic accuracy using the area under the reader operating characteristic (AUROC) of 87 % and cirrhosis (F = 4, AUROC 93 %). Normal values virtually exclude liver cirrhosis (negative predictive value up to 97 %) and high shear wave velocities predict complications in the course of primary sclerosing cholangitis, liver cirrhosis and chronic hepatitis B or C...
November 2015: Der Radiologe
https://www.readbyqxmd.com/read/26387841/the-choriovitelline-placenta-prenatal-sonographic-imaging-and-clinical-characteristics
#12
Reuven Achiron, Zvi Kivilevitch
OBJECTIVES: To describe the fetal sonographic characteristics, in-utero natural history, and postnatal outcome, of an abnormal placentation, in which, the absence of the fetal Umbilical vein was replaced by the persistence of extra embryonic Vitelline circulation, as the conveying vascular system from the Choriovitelline placenta. METHODS: Fetuses who fulfilled our main sonographic criteria, means, a downward caudal course of an enlarged vein from the umbilical annulus to the hepatic hilum, were followed prospectively during pregnancy...
September 21, 2015: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/25818797/-changes-in-portal-vein-and-hepatic-vein-blood-flow-volume-and-their-ratio-in-sd-rats-during-induced-carcinogenesis-of-hepatocellular-carcinoma
#13
An Wei, Hongtian Chen, Liang Liu, Keyi Wang
OBJEVTIVE: To explore the feasibility and reliability of ultrasonic monitoring of portal vein (PV) and hepatic vein (HV) blood flow volume changes in the process of induced carcinogenesis of hepatocellular carcinoma and the correlation of PV/HV blood flow volume ratio (Qpv/Qhv) with the severity of liver cirrhosis. METHODS: SD rats with diethylnitrosamine-induced liver carcinogenesis underwent regular liver ultrasound examinations including color flow imaging and pulsed Doppler examination...
March 2015: Nan Fang Yi Ke da Xue Xue Bao, Journal of Southern Medical University
https://www.readbyqxmd.com/read/25561782/non-invasive-tools-for-the-diagnosis-of-liver-cirrhosis
#14
Maurizio Soresi, Lydia Giannitrapani, Melchiorre Cervello, Anna Licata, Giuseppe Montalto
Liver cirrhosis (LC), the end stage of many forms of chronic hepatitis of different etiologies is a diffuse process characterized by fibrosis and the conversion of normal liver architecture into structurally abnormal nodules surrounded by annular fibrosis. This chronic progressive clinical condition, leads to liver cell failure and portal hypertension, which can favour the onset of hepatocellular carcinoma. Defining the phase of the natural history is crucial for therapeutic choice and prognosis. Liver biopsy is currently considered the best available standard of reference but it has some limits, so alternative tools have been developed to substitute liver biopsy when assessing liver fibrosis...
December 28, 2014: World Journal of Gastroenterology: WJG
https://www.readbyqxmd.com/read/25489129/postoperative-doppler-evaluation-of-liver-transplants
#15
Rupan Sanyal, Jessica G Zarzour, Dakshina M Ganeshan, Puneet Bhargava, Chandana G Lall, Mark D Little
Doppler ultrasound plays an important role in the postoperative management of hepatic transplantation, by enabling early detection and treatment of various vascular complications. This article describes the normal Doppler findings following liver transplantation and reviews the imaging appearances of various vascular complications associated with it. The article also discusses transient waveform abnormalities, often seen on a post-transplant Doppler examination, and the importance of differentiating them from findings suggestive of ominous vascular complications...
October 2014: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/25200002/systematic-review-of-congenital-and-acquired-portal-systemic-shunts-in-otherwise-normal-livers
#16
REVIEW
T J Matthews, M I Trochsler, F H Bridgewater, G J Maddern
BACKGROUND: Portal-systemic shunts (PSSs) are rarely seen in healthy individuals or patients with non-cirrhotic liver disease. They may play an important role in hepatic metabolism as well as in the spread of gastrointestinal metastatic tumours to specific organs. Small spontaneous PSSs may be more common than generally thought. However, epidemiological data are scarce and inconclusive. This systematic review examined the prevalence of reported PSSs and the associated detection methods...
November 2014: British Journal of Surgery
https://www.readbyqxmd.com/read/25123179/the-effect-of-doppler-ultrasound-on-early-vascular-interventions-and-clinical-outcomes-after-liver-transplantation
#17
Hannah Lee, Chae-Won Lim, Seok Ha Yoo, Chang-Hoon Koo, Woo-Il Kwon, Kyung-Suk Suh, Ho Geol Ryu
BACKGROUND: During the immediate postoperative period after liver transplantation (LT), postoperative bleeding and vascular complications (stenosis, thrombosis) are the two most common complications that require therapeutic decisions. Doppler ultrasound (DUS) is the established method for screening vascular patency after LT during the immediate postoperative period. The objective of our study was to evaluate the impact of DUS performed on postoperative days (POD) 1 and 2 on early vascular interventions...
December 2014: World Journal of Surgery
https://www.readbyqxmd.com/read/25117745/impact-of-contrast-enhanced-ultrasound-in-the-study-of-hepatic-artery-hypoperfusion-shortly-after-liver-transplantation-contribution-to-the-diagnosis-of-artery-steal-syndrome
#18
Angeles García-Criado, Rosa Gilabert, Luis Bianchi, Ramón Vilana, Marta Burrel, Marta Barrufet, Rafael Oliveira, Juan Carlos García-Valdecasas, Concepción Brú
OBJECTIVE: To assess the value of contrast-enhanced ultrasound (CEUS) in the absence of hepatic artery signal on Doppler ultrasound (DUS) in the immediate postoperative period after liver transplant. METHODS: This prospective study included 675 consecutive liver transplants. Patients without hepatic artery signal by DUS within 8 days post-transplant were studied with CEUS. If it remained undetectable, a thrombosis was suspected. In patent hepatic artery, a DUS was performed immediately after CEUS; if low resistance flow was detected, an arteriography was indicated...
January 2015: European Radiology
https://www.readbyqxmd.com/read/24951222/doppler-ultrasound-velocities-and-resistive-indexes-immediately-after-pediatric-liver-transplantation-normal-ranges-and-predictors-of-failure
#19
Lucy H Jamieson, Bo Arys, Gavin Low, Ravi Bhargava, Surekha Kumbla, Jacob L Jaremko
OBJECTIVE: We sought to determine the ranges of Doppler ultrasound findings immediately after pediatric liver transplantation that are associated with successful outcomes or postoperative complications. MATERIALS AND METHODS: This study included consecutive children who underwent Doppler ultrasound less than 48 hours after liver transplantation from 2001 to 2011. Operative reports and clinical outcome data were recorded. We had 110 patients (54% girls) with mean age at transplantation of 2...
July 2014: AJR. American Journal of Roentgenology
https://www.readbyqxmd.com/read/24916138/cavo-portal-transposition-in-pediatric-liver-transplant-recipients
#20
Marek Szymczak, Piotr Kaliciński, Wojciech Kwiatkowski, Dorota Broniszczak, Marek Stefanowicz
BACKGROUND: Cavo-portal transposition (CPT) at liver transplantation (LTx) allows portal revascularization of the liver in recipients in whom portal system thrombosis does not allow performance of porto-portal anastomosis. The aim was to present the cases of 2 children who underwent LTx and CPT in our institution. CASE REPORT: 1. A 10-year-old boy, after Kasai procedure and living donor LTx, was qualified for retransplantation 9 years after first LTx complicated with late portal vein thrombosis, portal hypertension, hypersplenism, and multiple GI bleeding episodes, after splenectomy and meso-caval shunt preventing GI bleeding...
2014: Annals of Transplantation: Quarterly of the Polish Transplantation Society
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