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Find video protocols related to scientific articles indexed in Pubmed.
Correlation between trans and intra-thoracic impedance and conductance in patients with chronic heart failure.
J Cardiovasc Med (Hagerstown)
PUBLISHED: 09-17-2014
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In chronic heart failure, changes of intra-thoracic impedance (Z0IT) may suggest impending pulmonary congestion; a similar result has been found by measuring trans-thoracic conductance (TFCTT?=?1/Z0?=?1/k?). We assumed that a relationship could exist between Z0IT and TFCTT.
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Prognostic value of noninvasive hemodynamic evaluation of the acute effect of levosimendan in advanced heart failure.
J Cardiovasc Med (Hagerstown)
PUBLISHED: 04-05-2014
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Optimization of inotropic treatment in worsening heart failure sometimes requires invasive hemodynamic assessment in selected patients. Impedance cardiography (ICG) may be useful for a noninvasive hemodynamic evaluation.
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Transthoracic bioimpedance and brain natriuretic peptide assessment for prognostic stratification of outpatients with chronic systolic heart failure.
Clin Cardiol
PUBLISHED: 02-03-2013
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In patients with chronic heart failure, physical evaluation and clinical judgment may be inadequate for prognostic stratification.
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Diastolic dysfunction and abnormal exercise ventilation predict adverse outcome in elderly patients with chronic systolic heart failure.
Eur J Prev Cardiol
PUBLISHED: 03-10-2011
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Heart failure is increasing in the elderly and represents a socioeconomic burden requiring the correct management for which risk stratification is mandatory. Among younger patients, echocardiogram and cardiopulmonary exercise test are useful in prognostic stratification. Few studies have analyzed the utility of these tests in elderly patients.
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Acute effects of levosimendan on mitral regurgitation and diastolic function in patients with advanced chronic heart failure.
J Cardiovasc Med (Hagerstown)
PUBLISHED: 07-09-2010
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We analyzed the inodilator properties of levosimendan in patients with chronic heart failure and severe functional mitral regurgitation.
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Transthoracic bioimpedance and brain natriuretic peptide levels accurately indicate additional diastolic dysfunction in patients with chronic advanced systolic heart failure.
Eur. J. Heart Fail.
PUBLISHED: 06-19-2010
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Diastolic dysfunction in patients with heart failure has prognostic relevance, possibly because of its relationship with worsening haemodynamic status. In the quest for simpler indexes of haemodynamic status in patients, brain natriuretic peptide (BNP) levels have been proposed as a surrogate of diastolic function. To date, the value of combining BNP levels with non-invasive haemodynamic monitoring by transthoracic electric bioimpedance (TEB) for the prediction of diastolic function has not been evaluated.
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Effects of slow deep breathing at high altitude on oxygen saturation, pulmonary and systemic hemodynamics.
PLoS ONE
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Slow deep breathing improves blood oxygenation (Sp(O2)) and affects hemodynamics in hypoxic patients. We investigated the ventilatory and hemodynamic effects of slow deep breathing in normal subjects at high altitude. We collected data in healthy lowlanders staying either at 4559 m for 2-3 days (Study A; N?=?39) or at 5400 m for 12-16 days (Study B; N?=?28). Study variables, including Sp(O2) and systemic and pulmonary arterial pressure, were assessed before, during and after 15 minutes of breathing at 6 breaths/min. At the end of slow breathing, an increase in Sp(O2) (Study A: from 80.2±7.7% to 89.5±8.2%; Study B: from 81.0±4.2% to 88.6±4.5; both p<0.001) and significant reductions in systemic and pulmonary arterial pressure occurred. This was associated with increased tidal volume and no changes in minute ventilation or pulmonary CO diffusion. Slow deep breathing improves ventilation efficiency for oxygen as shown by blood oxygenation increase, and it reduces systemic and pulmonary blood pressure at high altitude but does not change pulmonary gas diffusion.
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What is Visualize?

JoVE Visualize is a tool created to match the last 5 years of PubMed publications to methods in JoVE's video library.

How does it work?

We use abstracts found on PubMed and match them to JoVE videos to create a list of 10 to 30 related methods videos.

Video X seems to be unrelated to Abstract Y...

In developing our video relationships, we compare around 5 million PubMed articles to our library of over 4,500 methods videos. In some cases the language used in the PubMed abstracts makes matching that content to a JoVE video difficult. In other cases, there happens not to be any content in our video library that is relevant to the topic of a given abstract. In these cases, our algorithms are trying their best to display videos with relevant content, which can sometimes result in matched videos with only a slight relation.