نتایج جستجو برای: pulsatile

تعداد نتایج: 6163  

2014
Davor Barić

Continuous-flow left ventricular assist devices (LVAD) have become standard therapy option for patients with advanced heart failure. They offer several advantages over previously used pulsatile-flow LVADs, including improved durability, less surgical trauma, higher energy efficiency, and lower thrombogenicity. These benefits translate into better survival, lower frequency of adverse events, imp...

Journal: :Actas Dermo-Sifiliográficas (English Edition) 2016

Journal: :Biometrics 2009
Nichole E Carlson Timothy D Johnson Morton B Brown

SUMMARY Many hormones are secreted in pulses. The pulsatile relationship between hormones regulates many biological processes. To understand endocrine system regulation, time series of hormone concentrations are collected. The goal is to characterize pulsatile patterns and associations between hormones. Currently each hormone on each subject is fitted univariately. This leads to estimates of th...

2013
Jacques Young Jyothis T. George Javier A. Tello Bruno Francou Jerome Bouligand Anne Guiochon-Mantel Sylvie Brailly-Tabard Richard A. Anderson Robert P. Millar

Pulsatile gonadotropin-releasing hormone (GnRH) is crucial to normal reproductive function and abnormalities in pulse frequency give rise to reproductive dysfunction. Kisspeptin and neurokinin B (NKB), neuropeptides secreted by the same neuronal population in the ventral hypothalamus, have emerged recently as critical central regulators of GnRH and thus gonadotropin secretion. Patients with mut...

2014
Sayed Nour Jia Liu Gang Dai Daniel Carbognani Daya Yang Guifu Wu Qinmei Wang Juan Carlos Chachques

Cardiac assist devices (CAD) cause endothelial dysfunction with considerable morbidity. Employment of pulsatile CAD remains controversial due to inadequate perfusion curves and costs. Alternatively, we are proposing a new concept of pulsatile CAD based on a fundamental revision of the entire circulatory system in correspondence with the physiopathology and law of physics. It concerns a double l...

2017
Thadé Pieter Marie Goderie Waiel Hussain Fadhlallah Alkhateeb Conrad Frits Smit Erik Frans Hensen

OBJECTIVE To evaluate the outcome and per- and postoperative complications of the surgical management of patients with a persistent stapedial artery (PSA). METHODS A systemic literature search for reports on patients treated for pulsatile tinnitus and/or conductive hearing loss caused by a PSA was conducted of the PubMed and Embase databases using the terms "stapedial" and "artery." Inclusion...

2015
Dario A. Yacovino Pablo Casas

Tinnitus is the usually unwanted perception of sound, in most cases there is no genuine physical source of sound. Less than 10% of tinnitus patients suffer from pulsatile tinnitus. Objective Pulsatile tinnitus can also be the first indication of dural arteriovenous fistula, so examination for such vascular origin must be performed.

Journal: :Journal of Hypertension 2012

Journal: :Journal of Membrane Science 2015

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