Search PubMed⌕ Search
Home/Archive/PubMed

PubMed · 12371004

Right ventricular function.

Andrew N Redington
View original source ↗Export metadata ↓

Abstract

This article describes the importance of the right ventricle in both the normal circulation, and in the abnormal milieu of previously palliated or corrected congenital heart disease. The latter group represents natural models of abnormal right ventricular loading that do not exist in any other experimental arena, and their study has provided insights into chronic adaptation of the right ventricle, in terms of cardiopulmonary haemodynamics, right-left heart interactions and mechano-electric inter-relationships.

Explore related subjects

Cardiovascular Physiological PhenomenaDiagnostic Techniques, CardiovascularHeart Defects, CongenitalHumansRespiratory Physiological PhenomenaVentricular Function, LeftVentricular Function, RightJournal ArticleReview

Keep this discovery

Explore connections, maps & timelines

BibTeXRIS

Andrew N Redington. 2002. Right ventricular function.. https://doi.org/10.1016/s0733-8651(02)00005-x

Cite the original work for its findings. Save a collection to share your selection of sources.

KEEP EXPLORING

Related citations

PubMed2003

The instantaneous frequency of cardiovascular time series: a comparison of methods.

The instantaneous frequency (IF) of cardiovascular time series is used to describe the time-varying spectral contents of the characteristic frequency bands that are of interest for psychophysiological and cardiovascular research. Four methods to compute IF of band-limited, monocomponent, and analytical cardiovascular time series were compared by means of simulated time series contaminated with additive noise. These four methods are: the method using the inverse Fourier transform of uncorrelated time-slices of the Wigner-Ville distribution, the discrete time-frequency transform, the circular mean direction of the time-slices of the Wigner-Ville distribution, and the central finite difference of the phase. The time resolution of the estimates is optimal and is inversely related to the bandwidth of the frequency components, as given by the uncertainty principle of Gabor. At periods in time where the signal fulfills the requirements of the model signal, the four estimates of IF are numerically equal; only the circular mean direction showed a slight deviation from the other estimates. Although the estimates of IF differ at sudden phase shifts at low amplitude, i.e. at points where the signal locally does not comply with the requirements of the model signal, overall the four methods produce comparable estimates of IF of a cardiovascular time series at an optimal time resolution.

Cardiovascular Physiological Phenomena↗
PubMed2003

[Near drowning: epidemiology--pathophysiology--therapy].

Near-drowning is a frequent preventable accident with a significant morbidity and mortality in a previous healthy population. In most patients the primary injury is pulmonary failure due to fluid aspiration, resulting in severe arterial hypoxemia and secondary damage to other organs. Immediate interruption of hypoxia is of utmost importance in the emergency situation. Accurate neurologic prognosis cannot be predicted from initial clinical presentation, laboratory, radiological or electrophysiological examinations. Prompt resuscitation and aggressive respiratory and cardiovascular treatment are crucial for optimal survival. This review provides the reader with detailed information on epidemiology, pathophysiology, emergency decision making and general treatment in near drowning accidents.

Cardiovascular Physiological Phenomena↗