RELATIONSHIP BETWEEN HUMAN LEFT ATRIAL LOAD AND CONTRACTILITY IN VIVO
https://doi.org/10.17802/2306-1278-2014-1-47-51
Abstract
Рurpose. The purpose of the study was to elicit the relationship between the left atrial load and its contractility.
Materials and methods. 33 patients, 56,9±6,7 y. o., were enrolled in the study. All of them underwent echocardiography due to different clinical indications. The Doppler spectrum of transmitral and pulmonary vein flow, left atrial dimensions and volumes were estimated.
Results. The relationship between the volume and pressure load, and contractility were established. This supports the hypothesis of the Frank-Starling law validity for the human left atrium in vivo.
Conclusion. In the human heart in vivo there is an inverse exponential relationship between the left atrial volume load and its contractility, as well as a positive linear relationship between the pressure load and contractility.
About the Authors
S. E. MamchurRussian Federation
Dr. Med. Sci.
head of the laboratory of violations of a rhythm of heart and electrocardiostimulation
Correspondence address:
6, Sosnoviy blvd., Kemerovo, 650002. Tel. +7 (3842) 64-35-38
S. V. Berdnikov
Russian Federation
I. N. Mamchur
Russian Federation
E. A. Khomenko
Russian Federation
N. S. Bokhan
Russian Federation
D. A. Scherbinina
Russian Federation
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Review
For citations:
Mamchur S.E., Berdnikov S.V., Mamchur I.N., Khomenko E.A., Bokhan N.S., Scherbinina D.A. RELATIONSHIP BETWEEN HUMAN LEFT ATRIAL LOAD AND CONTRACTILITY IN VIVO. Complex Issues of Cardiovascular Diseases. 2014;(1):47-51. (In Russ.) https://doi.org/10.17802/2306-1278-2014-1-47-51