نتایج جستجو برای: microembolic signals

تعداد نتایج: 189578  

Journal: :Anesthesiology 2001
R J Byrick R E Korley M D McKee E H Schemitsch

USING transesophageal echocardiography, echogenic material can be shown in the right ventricle during many orthopedic procedures. Recently, transcranial Doppler–recorded microembolic signals have been described during femoral fracture fixation, suggesting that medullary pressurization may be associated with systemic microembolism and pulmonary fat and marrow emboli. Although reamed, locked intr...

Journal: :Postgraduate medical journal 2007
Sanjukta Sarkar Sujoy Ghosh Sandip Kumar Ghosh Andrew Collier

Transcranial Doppler sonography is a non-invasive, non-ionising, inexpensive, portable and safe technique that uses a pulsed Doppler transducer for assessment of intracerebral blood flow. This article deals with the principles and technique of transcranial Doppler sonography. It gives a brief overview of its use in evaluation of intracranial steno-occlusive disease, subarachnoid haemorrhage, an...

2010
Paolo Zanatta Alessandro Forti Enrico Bosco Loris Salvador Maurizio Borsato Fabrizio Baldanzi Carolina Longo Carlo Sorbara Pierluigi longatti Carlo Valfrè

BACKGROUND Extracorporeal membrane oxygenation (ECMO) supplies systemic blood perfusion and gas exchange in patients with cardiopulmonary failure. The current literature lacks of papers reporting the possible risks of microembolism among the complications of this treatment.In this study we present our preliminary experience on brain blood flow velocity and emboli detection through the transcran...

Journal: :Journal of Vascular Surgery 2022

A multispecialty position statement based on a review of the literature. Treatment asymptomatic carotid stenosis (ACS) is controversial and includes best medical treatment (BMT) alone vs intervention plus BMT. The high-risk clinical imaging features associated with an increased long-term ipsilateral ischemic stroke risk include male patients aged <75 years, contralateral transient attack/stroke...

Journal: :acta medica iranica 0
k. ghandehari z. izadimoud

microembolic signals (mes) are frequently observed in transcranial ‎doppler (tcd) recordings of patients with mechanical heart valve (mhv). if gaseous bubbles are the underlying cause, number of mes produced by mhv could be reduced with oxygen ‎inhalation. from september 2003 to september ‎2004, a consecutive series of 14 patients ‎with st jude aortic valve visited in the cardiology clinic were...

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