Left ventricular isovolumic relaxation flow and left ventricular systolic performance

Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography
Nobuyuki OhteT Fujinami

Abstract

We investigated isovolumic relaxation flow in patients with coronary artery disease (CAD) and evaluated the relationship between its velocity and left ventricular performance in 23 patients with atypical chest pain, 30 patients with CAD without prior myocardial infarction (MI), and 57 patients with prior MI, in whom cardiac catheterization was performed. The isovolumic relaxation flow velocity was measured at the basal portion of the left ventricle with pulsed Doppler echocardiography. The isovolumic relaxation flow ( > 15 cm/sec) was detected in 98 of 110 patients. The isovolumic relaxation flow velocity was significantly lower in patients with prior MI than in patients with atypical chest pain (p < 0.001) and in those with CAD without prior MI (P < 0.05). It was significantly lower in patients with CAD without prior MI than in those with atypical chest pain (p < 0.05). The isovolumic relaxation flow velocity showed a significant positive correlation with left ventricular ejection fraction. It also showed a significant negative correlation with left ventricular end-systolic volume index. These findings suggest that the isovolumic relaxation flow velocity is decreased in patients with CAD and is influenced by left ventricular s...Continue Reading

Citations

Sep 7, 2011·BMC Research Notes·Mallory K TateJohnny W Peterson
Jul 7, 2009·International Journal of Cardiology·Sergio MondilloMichael Henein
Oct 19, 2004·Echocardiography·Wen-Chol VoonSheng-Hsiung Sheu

❮ Previous
Next ❯

Related Concepts

Trending Feeds

COVID-19

Coronaviruses encompass a large family of viruses that cause the common cold as well as more serious diseases, such as the ongoing outbreak of coronavirus disease 2019 (COVID-19; formally known as 2019-nCoV). Coronaviruses can spread from animals to humans; symptoms include fever, cough, shortness of breath, and breathing difficulties; in more severe cases, infection can lead to death. This feed covers recent research on COVID-19.

Blastomycosis

Blastomycosis fungal infections spread through inhaling Blastomyces dermatitidis spores. Discover the latest research on blastomycosis fungal infections here.

Nuclear Pore Complex in ALS/FTD

Alterations in nucleocytoplasmic transport, controlled by the nuclear pore complex, may be involved in the pathomechanism underlying multiple neurodegenerative diseases including Amyotrophic Lateral Sclerosis and Frontotemporal Dementia. Here is the latest research on the nuclear pore complex in ALS and FTD.

Applications of Molecular Barcoding

The concept of molecular barcoding is that each original DNA or RNA molecule is attached to a unique sequence barcode. Sequence reads having different barcodes represent different original molecules, while sequence reads having the same barcode are results of PCR duplication from one original molecule. Discover the latest research on molecular barcoding here.

Chronic Fatigue Syndrome

Chronic fatigue syndrome is a disease characterized by unexplained disabling fatigue; the pathology of which is incompletely understood. Discover the latest research on chronic fatigue syndrome here.

Evolution of Pluripotency

Pluripotency refers to the ability of a cell to develop into three primary germ cell layers of the embryo. This feed focuses on the mechanisms that underlie the evolution of pluripotency. Here is the latest research.

Position Effect Variegation

Position Effect Variagation occurs when a gene is inactivated due to its positioning near heterochromatic regions within a chromosome. Discover the latest research on Position Effect Variagation here.

STING Receptor Agonists

Stimulator of IFN genes (STING) are a group of transmembrane proteins that are involved in the induction of type I interferon that is important in the innate immune response. The stimulation of STING has been an active area of research in the treatment of cancer and infectious diseases. Here is the latest research on STING receptor agonists.

Microbicide

Microbicides are products that can be applied to vaginal or rectal mucosal surfaces with the goal of preventing, or at least significantly reducing, the transmission of sexually transmitted infections. Here is the latest research on microbicides.