Search results for "Artery"

Zur Diagnostik atherosklerotischer Läsionen der extrakraniellen Arteria carotis mit Duplexsonographie und IA-DSA

1990

Fifty patients were studied prospectively. The extracranial portions of the carotid arteries were examined by duplex sonography and IA-DSA in order to demonstrate haemodynamically significant stenoses or plaques which might give rise to emboli and the findings compared with the pathologic specimens. The results indicate high sensitivity (up to 90%) for more than 75% detection of stenoses. On the other hand ulceration was diagnosed sonographically with an accuracy of 66% and plaque hemorrhage with an accuracy of 56%.

Pragmatic Analysis of Dyslipidemia Involvement in Coronary Artery Disease: A Narrative Review

2020

Background: Dyslipidemia is the main factor involved in the occurrence and progression of coronary artery disease. Objective: The research strategy is aimed at analyzing new data on the pathophysiology of dyslipidemia involvement in coronary artery disease, the modalities of atherogenic risk estimation and therapeutic advances. Method: Scientific articles published in PubMed from January 2017 to February 2018 were searched using the terms "dyslipidemia" and "ischemic heart disease". Results: PCSK9 contributes to the increase in serum levels of low-density lipoprotein-cholesterol and lipoprotein (a). The inflammation is involved in the progression of hyperlipidemia and atherosclerosis. Hype…

Histometric investigations of placental villi in cases of unexpected fetal acidosis.

1994

It is not unusual that, after an apparently uneventful pregnancy and birth, postpartal analysis of fetal blood unexpectedly reveals the presence of peripartal acidosis, a finding that is inexplicable on the basis of routine observation of the placenta. Using computer-assisted histometric procedures, it is possible to make a quantitative assessment with respect to the maturity and differentiation of villi, thus casting light on the functional anatomy of these structures. 89 single-birth pregnancies were grouped in accordance to the pH of blood in the umbilical artery (pre-acidosis, acidosis, non acidotic). In acidotic newborns, there is an absolute reduction in the surface area of the placen…

Sildenafil citrate improves perinatal outcome in fetuses from pre-eclamptic rats

2012

Please cite this paper as: Herraiz S, Pellicer B., Serra V, Cauli O, Cortijo J, Felipo V, Pellicer A. Sildenafil citrate improves perinatal outcome in fetuses from pre-eclamptic rats. BJOG 2012;119:1394–1402. Objective  To evaluate perinatal outcome after sildenafil citrate (SC) administration at the onset of pregnancy in a rat pre-eclampsia model. Design  In vivo animal experimental study. Setting  Fundacion IVI-Instituto Universitario IVI, Valencia, Spain. Sample Control and pre-eclampsia-induced pregnant Wistar rats exposed to chronic SC administration. Methods  We evaluated the use of SC, which was tested as a potential therapeutic tool to maintain vasodilatation in complicated pregnanc…

OC133: Natriuretic peptide levels in IUGR fetuses with absent and reversed enddiastolic flow of the umbilical artery in relation to ductus venosus fl…

2003

Discrimination of early/intermediate and advanced/complicated coronary plaque types by radiofrequency intravascular ultrasound analysis

2002

Radiofrequency intravascular ultrasound (IVUS-RF) analysis, as an extension of conventional IVUS imaging, may provide more accurate plaque discrimination. Thirty-two autopsy atherosclerotic coronary arteries were investigated. Corresponding sectors in different plaques were matched by histologic and RF analysis. Histologic analysis utilized the American Heart Association plaque classification. The backscattered ultrasound RF signal was analyzed by fast-Fourier transform, providing the underlying frequency components of its power spectrum. The normalized backscattered signal power (in decibels [dB]) for frequencies between 15.3 and 40.3 MHz was then measured for plaque discrimination. Advanc…

Derivation and Validation of a Chronic Total Coronary Occlusion Intervention Procedural Success Score From the 20,000-Patient EuroCTO Registry

2019

Abstract Objectives The aim was to establish a contemporary scoring system to predict the outcome of chronic total occlusion coronary angioplasty. Background Interventional treatment of chronic total coronary occlusions (CTOs) is a developing subspecialty. Predictors of technical success or failure have been derived from datasets of modest size. A robust scoring tool could facilitate case selection and inform decision making. Methods The study analyzed data from the EuroCTO registry. This prospective database was set up in 2008 and includes >20,000 cases submitted by CTO expert operators (>50 cases/year). Derivation (n = 14,882) and validation (n = 5,745) datasets were created to develop a …

Anatomic study on the transverse cervical vessels perforators in the lateral triangle of the neck and harvest of a new flap: the free supraclavicular…

2008

Anatomic study on the transverse cervical vessels perforators in the lateral triangle of the neck and harvest of a new flap: the free supraclavicular transverse cervical artery perforator flap. Cordova A, D'Arpa S, Pirrello R, Brenner E, Jeschke J, Moschella F. Source Cattedra di Chirurgia Plastica e Ricostruttiva, Dipartimento di Discipline Chirurgiche ed Oncologiche, Università degli Studi di Palermo, Via del Vespro, 129-90127, Palermo, Italy. adriana.cordova.unipa@gmail.com Abstract BACKGROUND: Vessels in the supraclavicular area and their contribution to skin vascularization have always been studied for flaps planning in head and neck reconstruction and many pedicled flaps have been des…

Fístula aortoentérica secundaria a infección de prótesis aortobifemoral

2002

Presentamos el caso de un hombre de 76 años, intervenido de una obstrucción iliaca bilateral mediante colocación de una prótesis aortobifemoral, que cinco años después presentó dolor en la fosa iliaca izquierda y fiebre en agujas de 39º C. En la exploración física destacaba un abdomen doloroso en la fosa iliaca izquierda con signos de irritación peritoneal. En las pruebas de laboratorio se detectó una leucocitosis con neutrofilia y hemocultivos negativos. La tomografía computadorizada (TC) objetivó la presencia de burbujas de gas alrededor de la prótesis, así como una colección líquida con áreas necróticas en su interior que afectaba a los músculos psoas e iliaco. En la misma exploración, l…

Fully robotic Ivor–Lewis esophagectomy (RAMIE4) for esophageal cancer after emergency surgery and ligation of the gastroduodenal artery

2018

We report a case of a 69-year-old patient with esophageal cancer and severe upper gastrointestinal bleeding during neoadjuvant radiochemotherapy who required mass transfusion followed by complex emergency procedures. Despite endoscopic stenting, the bleeding recurred, and thus emergency open surgery was required. Gastric wedge resection of the minor curvature necessitated by perforation caused by the endoscopic stent maneuver and duodenotomy with ligation of the gastroduodenal artery, as the cause of persistent intraluminal bleeding, were performed. The already prepared gastric conduit during the emergency operation did not become ischemic, even though the gastroduodenal artery, left gastr…