Changes of the Coronary Sinus Configuration and Hemodynamic Parameters with Varying Pulmonary Artery Systolic Pressure
Xu Jianping
Chen Wu
Hao Meifang
Wang Huiying
Abstract：Objective To research the changes of the coronary sinus(CS)configuration and hemodynamic parameters in patients with varying pulmonary artery systolic pressure.Methods the The coronary sinus in both the case group and the control group were sur-veyed by transthoracic echocardiography.Systolic internal diameter (CSSD),early diastolic internal diameter (CSDD),atrial systolic internal diameter (CSAD)of the coronary sinus were measured by M mode echocardiography.The systolic peak flow velocity (CSS-Vmax),early diastolic peak flow velocity (CSDVmax),peak flow velocity at atrial contraction (CSAVmax),and respective flow veloci-ty time integral (VTIS,VTID,VTIA)by PW were measured.Obtaining short axis images of the coronary sinus with the same sampling line as M mode echocardiography by xPlane multi planar imaging techniques,the coronary sinus area with the same phase as the M mode ultrasound (xCSSA,xCSDA,xCSAA)through drawing the trajectory of the coronary sinus were calculated.Then the net blood flow volume once and perminute (xQnet)were computed.Statistical analysis was performed on the indicators.Results Com-pared with control group,the coronary sinus diameter and cross sectional area increased significantly in case group 2 and case group 3 (P<0.05).The CSSVmax and CSDVmax decreased significantly in al case groups(P<0.05).The CSAVmax increased significantly in case group 3(P<0.05).VTIS in al case groups and VTID in case group 2 and case group 3 reduced significantly(P<0.05).VTIA increased gradual y in case group 2 and 3(P<0.05).There was no significant difference in the net blood flow volume once and perminute between case groups and control group.Conclusion With increasing of pulmonary artery systolic pressure,the changes of reconfigurability and adaptability in coronary sinus occured,which included the heighten of diameter and cross sectional area,and the reduction of forward flow velocity.
Keywords：hypertension pulmonarycoronary sinusconfigurationhemodynamics
Publication Date：2015-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 1517-1520 )