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aorta ultrasound

Y Y Go, P Lancellotti
No abstract text is available yet for this article.
March 10, 2018: European Journal of Vascular and Endovascular Surgery
Zahra Laleh Eslamian, Elahe Zarean, Maryam Moshfeghi, Zahra Heidari
Background: Early prediction of adverse neonatal outcome would be possible by Doppler impedance indices of middle cerebral artery (MCA), umbilical artery (UmA), and descending aortal artery (AO) that result in decrease neonatal morbidity and mortality rate. The aim of the present study was a determination of optimal value for the ratio of MCA to descending aorta blood flow (MCA/AO) impedance indices and its comparison with the ratio of MCA to UmA (MCA/UmA) impedance indices and their relationship with neonatal outcome...
2018: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
Biagio Castaldi, Giulia Bordin, Valentina Favero, Daniel Nardo, Francesca Previati, Sabrina Salvadori, Eugenio Baraldi, Ornella Milanesi
BACKGROUND AND AIMS: Preterm newborns undergo hemodynamic challenges in the postnatal period. The aim of this study was to investigate myocardial mechanics changes in the postnatal period in preterm infants using speckle tracking echocardiography (STE). MATERIAL AND METHODS: Thirty-nine preterm infants ≤34 weeks' gestation underwent cardiac ultrasound evaluation during the first 96 hours of life. A repeated echocardiogram at 3 weeks of age was performed. Echocardiographic assessment involved left ventricular ejection fraction, mitral E/A ratio, S' and E' velocities, E/E' ratio, tricuspid annular plane systolic excursion (TAPSE), left atrium-to-aorta ratio, ductal diameter and ductal shunt pattern...
March 6, 2018: Echocardiography
Espeed Khoshbin, Stephan Schueler
Explantation of a left ventricular assist device (LVAD) may be challenging even in the most experienced hands. We aim to describe the technique for explantation of an LVAD together with the heart as applicable to all contemporary implantable mechanical assist devices. In order to ensure safe explantation, particular care must be taken at three distinct stages: at the time of LVAD implantation, at pre-transplant assessment and at the time of heart transplantation. The preparation for a safe explantation at LVAD implantation includes positioning the driveline and the outflow graft away from the back of the sternum to ensure protection from injury during re-entry into the chest...
January 2018: Annals of Cardiothoracic Surgery
Kathleen Boyer, Eamon Filan, Brian Ching, Veronica Rooks, Dwight Kellicut
Nutcracker phenomenon is the descriptor for a patient's anatomy whenever the left renal vein becomes compressed between the abdominal aorta and the superior mesenteric artery. Nutcracker syndrome is the terminology used when the nutcracker phenomenon is accompanied by symptoms including pain (abdominal, flank, pelvic), hematuria, and orthostatic proteinuria. Diagnosis can be made with Doppler ultrasound, venography, computed tomography, or magnetic resonance imaging. This case demonstrates some of the typical findings of nutcracker syndrome...
February 2018: Radiology Case Reports
Maria Ceja-Rodriguez, Augustus Realyvasquez, Joseph Galante, William C Pevec, Misty Humphries
OBJECTIVE: Intravascular ultrasound (IVUS) has been recommended as an adjunct to thoracic endovascular aortic repair (TEVAR) as Computed Tomography (CT) in injured patients may inaccurately determine the true aortic diameter. We hypothesize that CT and IVUS offer discordant measurements of aortic diameter in trauma patients, and that each modality may result in different graft size estimates for TEVAR. METHODS: Patients treated by TEVAR for blunt aortic injury from June 2011 to 2016 were reviewed...
February 23, 2018: Annals of Vascular Surgery
L Meecham, V Summerour, S Hobbs, J Newman, M L Wall
INTRODUCTION: The NHS abdominal aortic aneurysm screening programme (NAAASP) is now fully operational. Those who have previously been formally investigated for abdominal aortic aneurysm (AAA) are excluded, however many patients undergo radiological investigation of the abdomen for other reasons. Such practices may find incidental AAA which may be eroding the performance of the NAAASP. We investigated the rates of pre-investigation prior to for invitation to screening in our local AAA screening programme...
February 23, 2018: Annals of Vascular Surgery
Candyce Hamel, Mona Ghannad, Matthew D F McInnes, John Marshall, Jonothan Earnshaw, Roxanne Ward, Becky Skidmore, Chantelle Garritty
OBJECTIVE: The objective of this review was to perform a rapid evidence summary to determine the prevalence of subaneurysmal aortic aneurysms, growth rates, and risk factors that modulate growth in average-risk men aged 65 years and older. Secondary objectives were to evaluate benefits and harms of lifelong ultrasound (US) surveillance and treatment outcomes for any large aneurysms that develop in the screened population. METHODS: We searched multiple databases (eg, Ovid MEDLINE, Embase Classic and Embase, and the Cochrane Library) on February 16, 2016...
February 21, 2018: Journal of Vascular Surgery
Yi-Bin Wang, Yang Li, You-Bin Deng, Ya-Ni Liu, Jun Zhang, Jie Sun, Ying Zhu, Li Li, Qiao-Ying Tang, Wei Zhou
The aim of this study was to test whether enlarged size and impaired elastic properties of the ascending aorta are associated with impaired endothelial function and increases in plasma matrix metalloproteinase (MMP)-2 concentrations in patients with bicuspid aortic valve (BAV) without significant valvular dysfunction. The size and the elasticity of the ascending aorta and the flow-mediated vasodilation (FMD) in the brachial artery in response to hyperemia were evaluated with 2-D echocardiography and high-frequency linear ultrasound in 42 patients with BAV without significant valvular dysfunction and 30 age- and sex-matched healthy controls...
February 20, 2018: Ultrasound in Medicine & Biology
Maureen S Oldach, Catherine T Gunther-Harrington, Ingrid M Balsa, Ehren M McLarty, Kyle A Wakeman, Kathryn L Phillips, Juhana Honkavaara, Lance C Visser, Joshua A Stern
A cat was evaluated for an acute-onset of right pelvic limb paresis. Thoracic radiographs revealed normal cardiac size and tortuous pulmonary arteries. Abdominal ultrasound identified a heartworm (HW) extending from the caudal abdominal aorta into the right external iliac artery and right femoral artery. The cat was HW-antigen positive. Echocardiography revealed a HW within the right branch of the main pulmonary artery and evidence of pulmonary hypertension. An agitated-saline contrast echocardiogram revealed a small right to left intracardiac shunt at the level of the atria...
February 20, 2018: Journal of Veterinary Internal Medicine
Ophélie Cojean, Claire Vergneau-Grosset, Isabelle Masseau
Captive leopard geckos (Eublepharis macularius) often present to the exotic clinic for gastrointestinal impactions, follicular stasis, or dystocia. To our knowledge, normal ultrasonographic anatomy of these lizards has not been described. The objectives of this prospective, anatomic, analytical study were to develop ultrasound techniques for this species and to describe the normal sonographic anatomy of the head, coelomic cavity, and tail. Eleven, healthy, female leopard geckos were included. A linear array 13-18 MHz transducer was used...
February 19, 2018: Veterinary Radiology & Ultrasound
Xuelei Li, Zhongping Mu, Xu Li, Zongjie Weng
BACKGROUND: Anomalous origin of the pulmonary arteries is a rare congenital pulmonary vascular malformation, that includes unilateral absence of the pulmonary artery (UAPA), anomalous origin of unilateral pulmonary artery (AOPA) and left pulmonary artery sling (LPAS). METHODS: We analyze 15 cases of fetal pulmonary artery abnormalities from 2011 to 2017, detected via prenatal ultrasound at our center. RESULTS: The 15 cases include UAPA (five), AOPA (six), and LPAS (four)...
February 16, 2018: Prenatal Diagnosis
A Ayad, S Lemouakni, L Tami, M Oulja, H Knouni, A Barkat
Arterial thrombosis of the newborn is rare and associated with poor prognosis, often attributed to umbilical arterial catheterization. The aortic and spontaneous forms are exceptional. Its severity requires fast and effective treatment. Although therapeutic means are numerous, no consensus has been established to date although thrombolysis and heparin therapy appear to give good results depending on the site and extent of thrombosis. We report a case of extensive thrombosis of the abdominal aorta in a 5-day-old newborn, revealed by acute hypernatremic dehydration...
February 2018: Journal de Médecine Vasculaire
Shin-Ichi Kosugi, Takehisa Hashimoto, Yo Sato, Kenichiro Hirano, Eiji Sunami, Takeaki Matsuzawa, Motoko Takahashi, Hiroshi Ichikawa
A 75-year-old male received neoadjuvant chemotherapy for locally advanced squamous cell carcinoma of the mid-thoracic esophagus, followed by right transthoracic esophagectomy with extended mediastinal lymphadenectomy. Cardiac tamponade developed on postoperative Days 1 and 13, for which emergency ultrasound-guided drainage was required. Pericardial drainage fluid became chylous after administration of polymeric formula. A computed tomography scan demonstrated the presence of a retrocardiac fluid collection, encompassed by the left pulmonary vein and left atrium, descending aorta and vertebral column...
October 2017: Journal of Surgical Case Reports
Maria Weinkouff Pedersen, Khiem Dinh Huynh, Ulrik Thorngren Baandrup, Dorte Guldbrand Nielsen, Niels Holmark Andersen
Abdominal aortic aneurysms are very rare in Marfan syndrome. We present a case with a young non-smoking and normotensive male with Marfan syndrome, who developed an infrarenal abdominal aortic aneurysm that presented with rupture to the retroperitoneal cavity causing life-threatening bleeding shock. The patient had acute aortic surgery and survived. Five months before this incident, the patient had uneventful elective aortic root replacement (a.m David) due to an enlarged aortic root. At that time, his abdominal aorta was assessed with a routine ultrasound scan that showed a normal sized abdominal aorta...
February 5, 2018: Annals of Vascular Surgery
Rachael O Forsythe, Marc R Dweck, Olivia M B McBride, Alex T Vesey, Scott I Semple, Anoop S V Shah, Philip D Adamson, William A Wallace, Jakub Kaczynski, Weiyang Ho, Edwin J R van Beek, Calum D Gray, Alison Fletcher, Christophe Lucatelli, Aleksander Marin, Paul Burns, Andrew Tambyraja, Roderick T A Chalmers, Graeme Weir, Neil Mitchard, Adriana Tavares, Jennifer M J Robson, David E Newby
BACKGROUND: Fluorine-18-sodium fluoride (18 F-NaF) uptake is a marker of active vascular calcification associated with high-risk atherosclerotic plaque. OBJECTIVES: In patients with abdominal aortic aneurysm (AAA), the authors assessed whether18 F-NaF positron emission tomography (PET) and computed tomography (CT) predicts AAA growth and clinical outcomes. METHODS: In prospective case-control (n = 20 per group) and longitudinal cohort (n = 72) studies, patients with AAA (aortic diameter >40 mm) and control subjects (aortic diameter <30 mm) underwent abdominal ultrasound,18 F-NaF PET-CT, CT angiography, and calcium scoring...
February 6, 2018: Journal of the American College of Cardiology
Yingchun Cao, Ayeeshik Kole, Jie Hui, Yi Zhang, Jieying Mai, Mouhamad Alloosh, Michael Sturek, Ji-Xin Cheng
Intravascular photoacoustic tomography is an emerging technology for mapping lipid deposition within an arterial wall for the investigation of the vulnerability of atherosclerotic plaques to rupture. By converting localized laser absorption in lipid-rich biological tissue into ultrasonic waves through thermoelastic expansion, intravascular photoacoustic tomography is uniquely capable of imaging the entire arterial wall with chemical selectivity and depth resolution. However, technical challenges, including an imaging catheter with sufficient sensitivity and depth and a functional sheath material without significant signal attenuation and artifact generation for both photoacoustics and ultrasound, have prevented in vivo application of intravascular photoacoustic imaging for clinical translation...
February 5, 2018: Scientific Reports
Fabrizio D'Abate, Dare Oladokun, Angelo La Leggia, Robert Hinchliffe, Matthew Thompson, Peter Holt, Jorg de Bruin, Ian Loftus, Benjamin Patterson
BACKGROUND: Duplex ultrasonography (DUS) currently has limited applicability in the diagnosis and surveillance of thoracic aortic pathologies because of associated limitations. This study investigates the feasibility of using an optimised DUS protocol to detect descending thoracic aortic pathology. METHODS: Forty patients were scanned (20 cases and 20 controls). All patients but one had a technically adequate assessment of the thoracic aorta (at least one view of the descending thoracic aorta)...
February 2, 2018: European Journal of Vascular and Endovascular Surgery
Asad Ikram, Hafsa Mohiuddin, Aisha Zia, Hafiz Umair Siddiqui, Hoda Javadikasgari, Marijan Koprivanac, Sajjad Raza, Atif Zafar
Although the occurrence of stroke in patients undergoing coronary artery bypass grafting (CABG) is decreasing, it remains an important concern. Therefore, it is important to identify and adopt strategies that can decrease the incidence of stroke in these patients. One of the strategies that have demonstrated the potential to decrease the rate of post-CABG stroke is an assessment of aorta for atherosclerosis before surgery and changing the surgical plan accordingly to minimize the stroke risk. This assessment can be done through palpation of the aorta, transesophageal echocardiography (TEE), and epiaortic ultrasound scanning (EAS)...
February 2, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
Bo Xia, Chun Hong, Jing Tang, Cuifen Liu, Gang Yu
RATIONALE: The occurrence of congenital cystic adenomatoid malformation (CCAM) and vascular ring (VR) is extremely rare. PATIENT CONCERNS: We present a case of left CCAM with VR consisting of a left aortic arch and right descending aorta with left tracheal compression causing atelectasis. DIAGNOSES: A high-risk male neonate with the diagnosis of left CCAM was diagnosed at 20 weeks gestational age by antenatal ultrasound. Chest CT revealed multiple cysts in the left inferior lung...
December 2017: Medicine (Baltimore)
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