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Vena cava ultrasound

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https://www.readbyqxmd.com/read/28818853/interobserver-agreement-and-image-quality-of-functional-cardiac-ultrasound-measures-used-in-a-randomised-trial-of-delayed-cord-clamping-in-preterm-infants
#1
Himanshu Popat, Kristy P Robledo, Lucille Sebastian, Nicholas Evans, Andrew Gill, Martin Kluckow, Sanjay Sinhal, Koert de Waal, William Tarnow-Mordi, David Osborn
OBJECTIVE: Functional cardiac ultrasound measures are used clinically and in trials for assessing the haemodynamic status of newborn infants. Superior vena cava (SVC) flow and right ventricular output (RVO) are established measures of systemic blood flow on the first postnatal day. The objective was to assess image quality and interobserver agreement of these measures in preterm infants enrolled in a randomised trial of immediate versus delayed cord clamping. DESIGN AND SETTING: Image quality and interobserver agreement for SVC flow, RVO and ductus arteriosus (DA) size were assessed on measurements taken at 3-6, 6-12 and 20-28 hours for the first 10 infants enrolled at each of four sites (total 40)...
August 17, 2017: Archives of Disease in Childhood. Fetal and Neonatal Edition
https://www.readbyqxmd.com/read/28818221/venography-versus-intravascular-ultrasound-for-diagnosing-and-treating-iliofemoral-vein-obstruction
#2
Paul J Gagne, Robert W Tahara, Carl P Fastabend, Lukasz Dzieciuchowicz, William Marston, Suresh Vedantham, Windsor Ting, Mark D Iafrati
OBJECTIVE: The Venogram vs IVUS for Diagnosing Iliac vein Obstruction (VIDIO) trial was designed to compare the diagnostic efficacy of intravascular ultrasound (IVUS) with multiplanar venography for iliofemoral vein obstruction. METHODS: During a 14-month period beginning July 2014, 100 patients with chronic Clinical, Etiologic, Anatomic, and Pathophysiologic clinical class C4 to C6 venous disease and suspected iliofemoral vein obstruction were enrolled at 11 U...
September 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
https://www.readbyqxmd.com/read/28809063/color-and-power-doppler-combined-with-fetal-intelligent-navigation-echocardiography-fine-to-evaluate-the-fetal-heart
#3
L Yeo, R Romero
OBJECTIVE: To evaluate the performance of color and bidirectional power Doppler ultrasound combined with Fetal Intelligent Navigation Echocardiography (FINE) in examining the fetal heart. METHODS: A prospective cohort study was conducted of fetuses in the second and third trimesters with a normal heart or with congenital heart disease (CHD). One or more spatiotemporal image correlation (STIC) volume datasets, combined with color or bidirectional power Doppler (S-flow) imaging, were acquired in the apical four-chamber view...
August 14, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28806783/the-utilization-of-critical-care-ultrasound-to-assess-hemodynamics-and-lung-pathology-on-icu-admission-and-the-potential-for-predicting-outcome
#4
Wanhong Yin, Yi Li, Xueying Zeng, Yao Qin, Dong Wang, Tongjuan Zou, Ling Su, Yan Kang
AIM: Critical care ultrasound (CCUS) has been used by many Intensive Care Units(ICUs) worldwide, so as to guiding the diagnosis and the treatment. However, none of the publications currently systematically describe the utilization of CCUS to analyze the characteristics of hemodynamics and lung pathology upon the new admission to ICU and its potential role in patients' prognosis prediction. In this retrospective clinical study, we have demonstrated and analyzed the characteristics of hemodynamics and lung pathology assessed by CCUS and investigated its potential to predict patient outcome...
2017: PloS One
https://www.readbyqxmd.com/read/28797661/patency-and-clinical-outcome-after-stent-placement-for-chronic-obstruction-of-the-inferior-vena-cava
#5
O Grøtta, T Enden, G Sandbæk, G F Gjerdalen, C-E Slagsvold, D Bay, N-E Kløw, A Rosales
OBJECTIVE/BACKGROUND: The objective was to assess the technical success, patency, and clinical outcome after stent placement for chronic obstruction of the inferior vena cava (IVC). METHODS: A retrospective analysis was carried out of patients with chronic IVC obstruction verified with computed tomography and/or magnetic resonance venography, accepted for stent placement at the Norwegian National Unit for Reconstructive Deep Venous Surgery from March 2010 to September 2015...
August 7, 2017: European Journal of Vascular and Endovascular Surgery
https://www.readbyqxmd.com/read/28765490/incidental-finding-of-persistent-left-superior-vena-cava-after-bubble-study-verification-of-central-venous-catheter
#6
Miguel Agustin Pardinas Gutierrez, Luis A Escobar, Vanessa Blumer, Jorge Luis Cabrera
We report a case of a patient with septic shock who underwent central venous catheter placement in the left internal jugular vein, and a bedside ultrasound 'bubble study' revealed venous cannulation. A chest X-ray postprocedure revealed concern for arterial system catheterisation. However, the possibility of a persistent left superior vena cava was discussed and confirmed with a formal transthoracic echocardiogram and CT. This case demonstrates the importance of ultrasound-guided visualisation of anatomical structures in real time during central venous catheterisation...
July 31, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/28756901/respiratory-variation-in-femoral-vein-diameter-has-moderate-accuracy-as-a-marker-of-fluid-responsivity-in-mechanically-ventilated-septic-shock-patients
#7
Wagner Luis Nedel, Daniele Moraes Simas, Luiz Gustavo Marin, Vinicius Daudt Morais, Gilberto Friedman
Ultrasound (US) is considered the first step in evaluation of patients with shock; respiratory variation of the inferior vena cava (inferior vena cava collapsibility [IVCc]) is an important measurement in this scenario that can be impaired by patient condition or technical skills. The main objective of this study was to evaluate if respiratory variation of the femoral vein (femoral vein collapsibility [FVc]), which is easier to visualize, can adequately predict fluid responsiveness in septic shock patients...
July 27, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28738751/a-single-center-retrospective-study-clinical-features-of-different-types-of-budd-chiari-syndrome-in-chinese-patients-in-the-hubei-area
#8
Gangping Li, Ying Huang, Shunyu Tang, Yuhu Song, Huimin Liang, Dehan Liu, Ling Yang, Xiaohua Hou
Background The characteristics and prevalence of Budd-Chiari syndrome in China remain unclear. This study aimed to analyze the clinical features of Budd-Chiari syndrome in Chinese patients in the Hubei area. Methods One-hundred and thirty patients with Budd-Chiari syndrome, admitted to Union Hospital from January 2002 to January 2011, were included in this retrospective study. Clinical features, laboratory data, imaging characteristics, and cumulative patency rates were analyzed. Results Of the 130 patients with Budd-Chiari syndrome, 77 were men (59...
January 1, 2017: Vascular
https://www.readbyqxmd.com/read/28722597/occult-amoebic-liver-abscess-as-cause-of-extensive-inferior-vena-cava-and-hepatic-vein-thrombosis
#9
Leslie Martin, Nishigandha Burute, Ehsan Haider, Pablo E Serrano, Timothy O'Shea, Deborah Siegal
The most common extraintestinal complication of Entamoeba histolytica is amoebic liver abscess (ALA). Hepatic vein and inferior vena cava (IVC) thrombosis are rare but well-documented complications of ALA, typically attributed to mechanical compression and inflammation associated with a large abscess. We present a case of a previously healthy 43-year-old Canadian man presenting with constitutional symptoms and right upper quadrant abdominal pain. He was found to have thrombophlebitis of the IVC, accessory right hepatic vein, and bilateral iliac veins...
July 3, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/28706106/detailed-assessment-of-benefits-and-risks-of-retrievable-inferior-vena-cava-filters-on-patients-with-complicated-injuries-the-da-vinci-multicentre-randomised-controlled-trial-study-protocol
#10
Kwok M Ho, Sudhakar Rao, Stephen Honeybul, Rene Zellweger, Bradley Wibrow, Jeffrey Lipman, Anthony Holley, Alan Kop, Elizabeth Geelhoed, Tomas Corcoran
INTRODUCTION: Retrievable inferior vena cava (IVC) filters have been increasingly used in patients with major trauma who have contraindications to anticoagulant prophylaxis as a primary prophylactic measure against venous thromboembolism (VTE). The benefits, risks and cost-effectiveness of such strategy are uncertain. METHODS AND ANALYSIS: Patients with major trauma, defined by an estimated Injury Severity Score >15, who have contraindications to anticoagulant VTE prophylaxis within 72 hours of hospitalisation to the study centre will be eligible for this randomised multicentre controlled trial...
July 12, 2017: BMJ Open
https://www.readbyqxmd.com/read/28694584/retrocaval-ureter-clinical-images
#11
Pradeep Agrawal, Ravi Prakash Kanojia, Akshay Saxena
Retrocaval ureter (RCU) is a rare congenital anomaly with the ureter looping around inferior vena cava (IVC). We present the case of 10-year-old boy. Diagnosis was confirmed with ultrasound and CT. He underwent retroperitoneoscopic uretero-ureterostomy.
July 2017: Journal of Indian Association of Pediatric Surgeons
https://www.readbyqxmd.com/read/28689938/gonadal-vein-transposition-in-nutcracker-syndrome
#12
Roy Miler, Eric K Shang, Woosup Michael Park
INTRODUCTION/OBJECTIVES: Nutcracker syndrome, caused by mesoaortic compression of the left renal vein leading to symptoms related to venous hypertension, is an uncommon entity that may require operative intervention. Traditional open transposition of the left renal vein to the vena cava has been shown to have a re-intervention rate of up to 30%, while also having additional morbidity associated with laparotomy. More recently, endovascular stenting has been described in several small series, but have reported stent fracture, thrombosis and migration...
July 6, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28685257/budd-chiari-syndrome-hepatic-venous-outflow-tract-obstruction
#13
REVIEW
Dominique-Charles Valla
BACKGROUND: Budd-Chiari syndrome (BCS) is a rare disease characterized by hepatic venous outflow tract obstruction (HVOTO). METHODS: Recent literature has been analyzed for this narrative review. RESULTS: Primary BCS/HVOTO is a result of thrombosis. The same patient often has multiple risk factors for venous thrombosis and most have at least one. Presentation and etiology may differ between Western and certain Eastern countries. Myeloproliferative neoplasms are present in 40% of patients and are usually associated with the V617F-JAK2 mutation in myeloid cells, in particular peripheral blood granulocytes...
July 6, 2017: Hepatology International
https://www.readbyqxmd.com/read/28685004/a-newborn-with-an-alternative-porto-caval-shunt
#14
Çağrı Damar, Ayşe Gül Alımlı, Betül Emine Derinkuyu, Kudret Ebru Özcan, Asburçe Olgaç, Ali Murat Koç
BACKGROUND: Absent ductus venosus (ADV) is a rare condition, but it should be known that this embryonic anomaly may be detected by fetal echocardiographic or newborn ultrasound examinations. CASE REPORT: We present a baby with an ADV and an accompanying alternative porto-caval shunt between the right portal vein and inferior vena cava detected on postnatal ultrasound examination. CONCLUSIONS: Variations in the fetal umbilical or porto-systemic circulations should be detected by fetal or newborn ultrasound examinations and kept in mind before common interventions such as UV catheterizations...
2017: Polish Journal of Radiology
https://www.readbyqxmd.com/read/28658004/is-the-collapsibillity-index-of-the-inferior-vena-cava-an-accurate-predictor-for-the-early-detection-of-intravascular-volume-change
#15
Jianjun Gui, Zhengfei Yang, Bing Ou, Anding Xu, Fan Yang, Qiaozhu Chen, Longyuan Jiang, Wanchun Tang
The ultrasonographic evaluation of inferior vena cava (IVC) parameters, particularly the collapsibility index (CI), has been widely used in the assessment of the fluid responsiveness (FR) of critically ill patients, but the results are conflicting. In this study, we aimed to investigate the early change in CI after increased intravascular volume (IVV) induced by passive leg raising (PLR). A total of 145 healthy volunteers over 18 years old were enrolled between September and December in 2015. Before and 2 min after PLR, the maximum and minimum IVC diameter (maxIVC and minIVC) were measured by color Doppler ultrasonography, and the difference in CI (ΔCI) was calculated...
June 27, 2017: Shock
https://www.readbyqxmd.com/read/28656317/-imaging-representation-of-peripheral-veins
#16
REVIEW
B Voigts, N Abolmaali, C Stelzner, S M Schellong
Several techniques are available for imaging of the venous system of the legs and pelvic region. In cases of suspected deep leg vein thrombosis B‑mode compression ultrasound is applied. Its accuracy is sufficient to either confirm or exclude the diagnosis with certainty. For examination of the iliac veins, however, flow information has to be added by pulsed wave (PW) Doppler or color Doppler sonography. In cases of suspected arm vein thrombosis, ultrasound is also the method of choice. The more proximal or the central parts of the venous system, i...
August 2017: Der Internist
https://www.readbyqxmd.com/read/28646194/magnetic-resonance-imaging-of-fetal-persistent-left-superior-vena-cava
#17
Su-Zhen Dong, Ming Zhu
This study aimed to evaluate the diagnostic accuracy of fetal magnetic resonance imaging (MRI) for persistent left superior vena cava (LSVC). Prenatal echocardiography (echo) and/or ultrasound (US) and MRI data for 49 fetuses with persistent LSVC, confirmed via postnatal diagnoses between January 2010 and October 2015, were retrospectively reviewed. All prenatal MRI was performed at 1.5 T. Imaging sequences included steady-state free-precession (SSFP), single-shot turbo spin echo (SSTSE), and other sequences...
June 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28629571/detection-and-characterization-of-budd-chiari-syndrome-with-inferior-vena-cava-obstruction-comparison-of-fixed-and-flexible-delayed-scan-time-of-computed-tomography-venography
#18
Peng-Li Zhou, Gang Wu, Xin-Wei Han, Yong-Hua Bi, Wen-Guang Zhang, Zheng-Yang Wu
PURPOSE: To compare the results of computed tomography venography (CTV) with a fixed and a flexible delayed scan time for Budd-Chiari syndrome (BCS) with inferior vena cava (IVC) obstruction. MATERIAL AND METHODS: A total of 209 consecutive BCS patients with IVC obstruction underwent either a CTV with a fixed delayed scan time of 180s (n=87) or a flexible delayed scan time for good image quality according to IVC blood flow in color Doppler ultrasonography (n=122)...
June 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28629375/diagnostic-performance-of-multi-organ-ultrasound-with-pocket-sized-device-in-the-management-of-acute-dyspnea
#19
Alfonso Sforza, Costantino Mancusi, Maria Viviana Carlino, Agostino Buonauro, Marco Barozzi, Giuseppe Romano, Sossio Serra, Giovanni de Simone
BACKGROUND: The availability of ultra-miniaturized pocket ultrasound devices (PUD) adds diagnostic power to the clinical examination. Information on accuracy of ultrasound with handheld units in immediate differential diagnosis in emergency department (ED) is poor. The aim of this study is to test the usefulness and accuracy of lung ultrasound (LUS) alone or combined with ultrasound of the heart and inferior vena cava (IVC) using a PUD for the differential diagnosis of acute dyspnea (AD)...
June 19, 2017: Cardiovascular Ultrasound
https://www.readbyqxmd.com/read/28626072/5-ht-causes-splanchnic-venodilation
#20
Bridget Mahon Seitz, Hakan Orer, Teresa Krieger-Burke, Emma S Darios, Janice M Thompson, Gregory D Fink, Stephanie W Watts
Serotonin (5-HT, 5-hydroxytrypamine) causes relaxation of the isolated superior mesenteric vein (SMV), a splanchnic blood vessel, through activation of the 5-HT7 receptor. As part of studies designed to identify the mechanism(s) through which chronic (>24 hours) infusion of 5-HT lowers blood pressure, we test the hypothesis that 5-HT causes an in vitro and in vivo splanchnic venodilation that is 5-HT7 receptor-dependent. In tissue baths for measurement of isometric contraction, the portal vein (PV) and abdominal inferior vena cava (Ab IVC) relaxed to 5-HT and the 5-HT1/7 receptor agonist 5-carboxamidotryptamine (5-CT); relaxation was abolished by the 5-HT7 receptor antagonist SB269970...
June 16, 2017: American Journal of Physiology. Heart and Circulatory Physiology
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