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Vascular doppler

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https://www.readbyqxmd.com/read/28731594/duplex-doppler-sonographic-assessment-of-the-superior-mesenteric-artery-in-patients-with-mesenteric-panniculitis
#1
Berat Acu, Mehmet Emrah Güven, Mehmet Ali Kaptan, Çiğdem Öztunalı, Erkan Gökçe, Murat Beyhan, Taylan Kara
OBJECTIVES: We aimed to determine how the hemodynamic parameters of the superior mesenteric artery are affected in mesenteric panniculitis. METHODS: Twenty-one patients with a diagnosis of mesenteric panniculitis on computed tomography were evaluated with duplex Doppler sonography. The control group consisted 20 asymptomatic volunteers. The peak systolic velocity, end-diastolic velocity (EDV), resistive index (RI), pulsatility index (PI), blood flow volume, and body mass index were measured in the group of patients with mesenteric panniculitis, and the findings were compared with those of the control group...
July 21, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28730400/evaluation-of-retrobulbar-blood-flow-and-choroidal-thickness-in-patients-with-rheumatoid-arthritis
#2
Ali Kal, Enes Duman, Almila Sarıgül Sezenöz, Mahmut Oğuz Ulusoy, Öznur Kal
PURPOSE: To evaluate whether retrobulbar blood flow and choroidal thickness (CT) are affected in patients with rheumatoid arthritis (RA), and the relationship between these values. METHODS: We evaluated 40 eyes of 20 RA patients and 40 eyes of 20 healthy controls. The enhanced depth imaging optical coherence tomography, color Doppler imaging, was held. Statistical analysis was performed. RESULTS: Peak systolic velocity (PSV) of ophthalmic (OA) and central retinal artery (CRA) were significantly higher in RA...
July 20, 2017: International Ophthalmology
https://www.readbyqxmd.com/read/28730176/thrombectomy-combined-with-indwelling-catheter-thrombolysis-is-more-effective-than-pure-thrombectomy-for-the-treatment-of-lower-extremity-deep-venous-thrombosis
#3
Wenli Wang, Yanfang Wu, Tao Fang, Dunyuan Xu
This study was a retrospective analysis of the efficacy of thrombectomy plus local catheter-directed thrombolysis (CDT) for the treatment of lower extremity deep venous thrombosis (LDVT). The experimental group underwent thrombectomy plus LCDT, whereas the control group underwent thrombectomy plus systemic thrombolysis via the dorsalis pedis vein. Venography and vascular color Doppler ultrasound were performed 7 days after surgery and at follow-up. The differences in the thigh and calf circumferences of normal and affected limbs were compared between groups...
2017: Open Medicine (Warsaw, Poland)
https://www.readbyqxmd.com/read/28729391/edward-f-adolph-distinguished-lecture-skin-deep-insights-into-vascular-aging
#4
W Larry Kenney
The skin is an accessible model circulation for studying vascular function and dysfunction across the lifespan. Age-related changes, as well as those associated with disease progression, often appear first in the cutaneous circulation. Further, impaired vascular signaling and attendant endothelial dysfunction -- one of the earliest indicators of cardiovascular pathogenesis -- occurs in a similar fashion across multiple tissue beds throughout the body including the skin. Because microvascular dysfunction is a better predictor of long term outcomes and adverse cardiovascular events than is large vessel disease, understanding age-associated changes in the control of the human cutaneous microcirculation is important...
July 20, 2017: Journal of Applied Physiology
https://www.readbyqxmd.com/read/28718893/association-between-maternal-vascular-murmur-and-the-small-for-gestational-age-fetus-with-abnormal-umbilical-artery-doppler-flow
#5
Diana Riknagel, Richard Farlie, Morten Hedegaard, Peter Humaidan, Johannes J Struijk
OBJECTIVE: To investigate the association between maternal vascular murmurs (MVMs) and fetal growth restriction (defined as small-for-gestational-age [SGA] fetus) and abnormal Doppler pulsatility index (PI) of the uterine and/or umbilical arteries. METHODS: A cross-sectional study of women aged 18 years or older with a singleton pregnancy at 28-34 weeks was conducted at Regional Hospital Viborg, Denmark, between May 1 and August 1, 2013. Ultrasound fetal biometry was performed and the Doppler PI of the umbilical and uterine arteries was determined...
July 18, 2017: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28717556/thorax-computed-tomography-findings-in-patients-with-erectile-dysfunction
#6
Mustafa Resorlu, Muhammet Arslan, Ozan Karatag, Gurhan Adam
OBJECTIVE: Diabetes mellitus, smoking, dyslipidemia, and obesity play an important role in the etiology of erectile dysfunction, particularly in cases with vascular insufficiency. These risk factors also target the lungs due to their systemic effects. MATERIALS AND METHODS: Patients with penile vascular insufficiency determined at Doppler ultrasonography and undergoing thoracic computerized tomography for various reasons were included in this study. A history of acute thoracic trauma, pneumonic consolidation, or pelvic surgery and trauma were regarded as exclusion criteria...
2017: Journal of Clinical Imaging Science
https://www.readbyqxmd.com/read/28715896/use-of-abdominal-ultrasound-in-the-diagnosis-of-hepatic-sinusoidal-obstruction-syndrome-sos-in-a-patient-receiving-a-hematopoietic-cell-transplant
#7
Marta Abadía Barnó, Eva Marín Serrano, Gloria Ruiz Fernández
The sinusoidal obstruction syndrome (SOS) is an uncommon form of portal hypertension that occurs in hematopoietic-cell transplant recipients who receive intense conditioning treatments. The diagnosis is clinical and it is usually delayed, because in these patients there are many causes that can damage the liver and can delay its detection. We present the case of a 47-year-old man, whose diagnosis was made with clinical and analytical data supported by ultrasound signs that showed hepatic congestion. After treatment with defibrotide the patient improved clinically and analytically...
July 18, 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28715144/international-endometrial-tumor-analysis-ieta-terminology-in-women-with-postmenopausal-bleeding-and-sonographic-endometrial-thickness-%C3%A2-4-5%C3%A2-mm-an-agreement-and-reliability-study
#8
Povilas Sladkevicius, Arnaud Installé, Thierry Van den Bosch, Dirk Timmerman, Beryl Benacerraf, Ligita Jokubkiene, Alessia di Legge, Angelo Votino, Letizia Zannoni, Bart De Moor, Bavo De Cock, Ben Van Calster, Lil Valentin
OBJECTIVES: To estimate intra- and inter-rater agreement and reliability with regard to describing ultrasound images of the endometrium using the International Endometrial Tumor Analysis (IETA) terminology. METHODS: Four expert and four non-expert raters assessed video clips of transvaginal ultrasound examinations of the endometrium from 99 women with postmenopausal bleeding and sonographic endometrial thickness ≥4.5 mm and no fluid in the uterine cavity. The following features were rated: endometrial echogenicity (nine categories), endometrial midline (four categories), bright edge (yes, no), endometrial-myometrial junction (four categories), color score (1 to 4), vascular pattern (seven categories), irregularly branching vessels (yes, no), color splashes (yes, no)...
July 17, 2017: Ultrasound in Obstetrics & Gynecology
https://www.readbyqxmd.com/read/28715087/association-between-endometrial-subendometrial-vasculature-and-embryo-transfer-outcome-a-meta-analysis-and-subgroup-analysis
#9
Jianing Wang, Fei Xia, Ying Zhou, Xuedong Wei, Yanyan Zhuang, Yingxue Huang
OBJECTIVES: To examine the association between endometrial/subendometrial vasculature and in vitro fertilization-embryo transfer (IVF-ET) and frozen embryo transfer (FET) outcomes. METHODS: A meta-analysis of studies using endometrial/subendometrial 3-dimensional ultrasound and power Doppler angiography was performed to examine the vascularization index (VI), flow index (FI), and vascularization-flow index (VFI) in pregnant and nonpregnant women. Ten articles were analyzed, including 895 pregnant women and 882 nonpregnant women...
July 17, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28714905/effects-of-eicosapentaenoic-acid-epa-and-docosahexaenoic-acid-dha-on-fetal-pulmonary-circulation-an-experimental-study-in-fetal-lambs
#10
Dyuti Sharma, Estelle Aubry, Thavarak Ouk, Ali Houeijeh, Véronique Houfflin-Debarge, Rémi Besson, Philippe Deruelle, Laurent Storme
Background: Persistent pulmonary hypertension of the newborn (PPHN) causes significant morbidity and mortality in neonates. n-3 Poly-unsaturated fatty acids have vasodilatory properties in the perinatal lung. We studied the circulatory effects of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) in fetal sheep and in fetal pulmonary arterial rings. Methods: At 128 days of gestation, catheters were placed surgically in fetal systemic and pulmonary circulation, and a Doppler probe around the left pulmonary artery (LPA)...
July 16, 2017: Nutrients
https://www.readbyqxmd.com/read/28713006/ultrasonographic-findings-in-the-epididymis-of-pediatric-patients-with-testicular-torsion
#11
C E Afsarlar, R Elizondo, E Yilmaz, E Cakmakci, D J Ballow, E Demir, G Guney, C J Koh
INTRODUCTION: Although grayscale ultrasound and color Doppler ultrasound characteristics of the torsed testis are well established in the literature, less is known about its anatomic partner: the epididymis. OBJECTIVE: The purpose of this study was to describe the ultrasound characteristics of the epididymis in pediatric patients with testicular torsion, and to describe their potential role as prognostic criteria for testicular salvage outcomes. STUDY DESIGN: During a retrospective review of 217 pediatric patients with acute testicular torsion during 2009-2016, morphological features of the epididymis from scrotal ultrasounds (size, parenchymal characteristics, and vascular flow of both epididymis heads), as well as patient demographics, time duration, surgical outcomes, histopathology results, and follow-up periods were analyzed...
June 19, 2017: Journal of Pediatric Urology
https://www.readbyqxmd.com/read/28712815/asymptomatic-carotid-stenosis-is-associated-with-cognitive%C3%A2-impairment
#12
Brajesh K Lal, Moira C Dux, Siddhartha Sikdar, Carly Goldstein, Amir A Khan, John Yokemick, Limin Zhao
BACKGROUND: Cerebrovascular risk factors (eg, hypertension, coronary artery disease) and stroke can lead to vascular cognitive impairment. The Asymptomatic Carotid Stenosis and Cognitive Function study evaluated the isolated impact of asymptomatic carotid stenosis (no prior ipsilateral or contralateral stroke or transient ischemic attack) on cognitive function. Cerebrovascular hemodynamic and carotid plaque characteristics were analyzed to elucidate potential mechanisms affecting cognition...
July 13, 2017: Journal of Vascular Surgery
https://www.readbyqxmd.com/read/28710899/effects-of-dobutamine-dopamine-phenylephrine-and-noradrenaline-on-systemic-haemodynamics-and-intestinal-perfusion-in-isoflurane-anaesthetised-horses
#13
C Dancker, K Hopster, K Rohn, S B Kästner
BACKGROUND: In the horse, effects of cardiovascular-active drugs on local perfusion of the gastrointestinal tract are poorly understood. OBJECTIVES: To determine the effect of drugs commonly used to support blood pressure, on local intestinal blood flow and tissue oxygenation under isoflurane anaesthesia. STUDY DESIGN: In vivo randomised crossover experiment METHODS: Ten horses were anaesthetised with isoflurane. After 90 minutes of equilibration three doses (μg/kg bwt/min) of dobutamine (DOB 0...
July 15, 2017: Equine Veterinary Journal
https://www.readbyqxmd.com/read/28708540/influence-of-two-ovulation-inducing-agents-on-the-pituitary-response-and-follicle-blood-flow-in-mares
#14
Y L Boakari, J C Ferreira, H S Canesin, D L Thompson, F S Lima, J C F Pantoja, C Meira
The objective of the current study was to evaluate the effects of deslorelin and hCG, two ovulation-inducing therapies, on LH surge and follicle vascularity in mares. Thirty mares were either treated with 1.5 mg IM of deslorelin, 2,500 IU IV of hCG or 2 mL IM of NaCl 0.9% (GnRH, hCG and Saline groups, respectively). Power-flow Doppler examination and blood collection were performed every hour during the first 12 hours after treatment (H0) and every six hours between hours 12 (H12) and 30 (H30) after treatment...
June 8, 2017: Theriogenology
https://www.readbyqxmd.com/read/28708246/three-dimensional-power-doppler-evaluation-of-cerebral-vascular-blood-flow-a-novel-tool-in-the-assessment-of-fetal-growth-restriction
#15
Katherine R Goetzinger, Alison G Cahill, Linda Odibo, George A Macones, Anthony O Odibo
OBJECTIVES: To determine whether fetuses with fetal growth restriction (FGR) are more likely to have abnormal cerebral vascular flow patterns compared to fetuses who are appropriate for gestational age (AGA) when quantified by using 3-dimensional (3D) power Doppler ultrasound. METHODS: We conducted a prospective cohort study of singleton gestations presenting for growth ultrasound examination between 24 and 36 weeks' gestation. Patients with FGR (estimated fetal weight < 10th percentile) were enrolled and matched 1:1 for gestational age (±7 days) with AGA fetuses...
July 14, 2017: Journal of Ultrasound in Medicine: Official Journal of the American Institute of Ultrasound in Medicine
https://www.readbyqxmd.com/read/28708034/ultrasound-guided-percutaneous-common-carotid-artery-access-in-piglets-for-intracoronary-stem-cell-infusion
#16
Jason H Anderson, Nathaniel W Taggart, Sarah L Edgerton, Susana Cantero Peral, Kimberly A Holst, Frank Cetta
In pigs, the deep location of the common carotid artery and overlying sternomastoideus muscle in the neck has led to the recommendation for a surgical cutdown for common carotid access, as opposed to minimally invasive techniques for vascular access. We sought to determine if direct percutaneous common carotid artery access in piglets is attainable. Seventeen piglets were anesthetized and intubated. Under two-dimensional and color flow Doppler ultrasound guidance, a 21 gauge needle was utilized to access the right common carotid artery...
January 1, 2017: Laboratory Animals
https://www.readbyqxmd.com/read/28705754/progression-of-lyme-disease-to-bell-s-palsy-despite-treatment-with-doxycycline
#17
Luis A Marcos, Zengmin Yan
A 54 year-old healthy woman presented to the emergency department with a right sided facial paralysis. About 3 weeks ago, she woke up and noticed an attached engorged tick in her right lower extremity. A week later, she noticed a mild to moderate right jaw pain which progressed to a severe right facial pain so she visited her doctor. On physical, II to XII cranial nerve examination was unremarkable. Doppler ultrasound did not show any vascular abnormalities in temporal artery. Her inflammatory markers were within normal limits (C-reactive protein:0...
July 10, 2017: International Journal of Infectious Diseases: IJID
https://www.readbyqxmd.com/read/28704481/renal-auto-transplantation-promotes-cortical-microvascular-network-remodeling-in-a-preclinical-porcine-model
#18
Souleymane Maïga, Geraldine Allain, Thierry Hauet, Jerome Roumy, Edouard Baulier, Michel Scepi, Manuel Dierick, Luc Van Hoorebeke, Patrick Hannaert, Franck Guy, Frederic Favreau
The vascular network is a major target of ischemia-reperfusion, but has been poorly investigated in renal transplantation. The aim of this study was to characterize the remodeling of the renal vascular network that follows ischemia-reperfusion along with the most highly affected cortex section in a preclinical renal transplantation model. There were two experimental groups. The first was a grafted kidney group consisting of large white pigs for which the left kidney was harvested, cold flushed, preserved for 24 h in the University of Wisconsin's preservation solution, and then auto-transplanted (n = 5); the right kidney was removed to mimic the situation of human kidney transplantation...
2017: PloS One
https://www.readbyqxmd.com/read/28704304/arterial-tree-anomalies-in-patients-with-clubfoot-an-investigation-carried-out-at-soba-university-hospital
#19
Samir Shaheen, Mustafa E H Bahar, Almigdad H A Mohammed, Sara F A Elbadri, Ashok Johari
Vascular deficiencies and reduced perfusion of the anterior tibial artery and the dorsalis pedis artery were suggested as causes of congenital talipes equino varus (CTEV). In this study, we assessed the prevalence of arterial abnormalities in patients with CTEV (50 patients; 74 feet) compared with a normal control group (16 patients; 32 feet) by Doppler ultrasound and Ankle Brachial Index. The flow was normal in the control group and was deficient in 39.19% of clubfoot patients. In severe clubfoot cases, the deficiency was found to an extent of 76...
July 12, 2017: Journal of Pediatric Orthopedics. Part B
https://www.readbyqxmd.com/read/28694827/preferred-m2-polarization-by-asc-based-hydrogel-accelerated-angiogenesis-and-myogenesis-in-volumetric-muscle-loss-rats
#20
Hong Huang, Jiejie Liu, Haojie Hao, Deyun Chen, Ling Zhizhong, Meirong Li, Haijing Song, Rong Xiang, Chaoguang Jiang, Xiaobing Fu, Weidong Han
Volumetric muscle loss (VML) injury resulted from massive muscle defects and diseases for which there are still no effective therapeutic treatments. This study aimed to investigate the effects of rat adipose-derived mesenchymal stem cells (rASCs) and rASCs-conditioned medium- (CM-) based type I collagen hydrogel on macrophage (MP) transition, myogenesis, and vascularization in the rat VML model. Laser Doppler results demonstrated much higher blood flow in the rASC- and CM-based hydrogel groups. qRT-PCR, hematoxylin and eosin, immunofluorescence, and Sirius Red staining manifested that both rASCs and CM-based hydrogel implantation accelerated muscle repair with upregulated angiogenesis and myogenesis, attenuated inflammation while facilitating M2 transition, and decreased the collagen deposition compared with the hydrogel group...
2017: Stem Cells International
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