Clinical Diagnostic Value of Echocardiography in Fetal Foramen Ovale Restriction or Closure

doi:10.7517/issn.1674-0475.200719

Abstract

Abstract: To investigate the value of echocardiography in the diagnosis of fetal foramen ovale restriction or closure (FO-R/C), we analyzed 31 cases of FO-R/C (observation group) and 30 cases of normal fetal echocardiography (control group). The efficacy of echocardiography in diagnosing FO-R/C was analyzed based on pathological or postnatal echocardiography diagnosis results. The results showed that the maximal fluidity, the ratio of right ventricle diameter to the left (RV/LV) and the ratio of right atrium diameter to the left (RA/LA) were all higher than those in the control group (P<0.05), as well as the ratio of main pulmonary artery diameter to the aorta (MPA/AO), the ratio of pulmonic supravalvular blood flow velocity to the aortic supravalvular (VMPA/VAO), cardiothoracic ratio and the resistance index of venous catheter. While the diameter of FO and the ratio of FO to aortic valve ring were smaller than those in the control group (P< 0.05), as well as the ratio of FO to right atrial transverse diameter. In conclusion, it can be confirmed that RA/LA, VMPA/VAO, maximum fluidity of FO and resistance index of venous catheter are effective in diagnosing FO-R/C. It is concluded that echocardiography can be used to assist the diagnosis of FO-R/C.

Key words: echocardiography, fetal foramen ovale, blood flow limitation, early closure

YU Na, LI Yi, CAO Wenming, ZHAO Liying, SHAO Lin. Clinical Diagnostic Value of Echocardiography in Fetal Foramen Ovale Restriction or Closure[J]. IMAGING SCIENCE AND PHOTOCHEMISTRY, 2021, 39(2): 262-266.

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