Prenatal ultrasonic diagnostic features of tetralogy of Fallot in early pregnancy

doi:10.3877/cma.j.issn.2095-655X.2021.01.007

Abstract

Abstract:

Objective

To investigate the prenatal ultrasonic diagnostic features of tetralogy of Fallot(TOF) in early pregnancy.

Methods

The prenatal ultrasound data of a case of 14-week-old fetus with TOF, who was confirmed by pathological anatomy in the Ultrasound Department of Laizhou Maternity and Child Healthcare Hospital on September 22, 2019 were retrospectively analyzed, and literatures were reviewed.

Results

The prenatal echocardiography of TOF showed abnormal cardiac axis and tricuspid regurgitation in four chamber view. Perimembranous ventricular septal defect, widened aorta straddling the interventricular septum were showed in left ventricular outflow tract. Color Doppler flow imaging showed the color "y" sign, which was formed by left ventricular blood flow and right ventricular blood flow through ventricular septal which entered the aortic in systole together. Narrowed pulmonary artery was showed in right ventricular outflow tract. Pathological anatomy confirmed the diagnosis of TOF.

Conclusions

TOF is a common conotruncal defect. Ultrasonic examination is noninvasive and simple, which can provide imaging evidence for prenatal diagnosis of TOF.

Key words: Tetralogy of Fallot, Fetus, Congenital heart disease, Ultrasonography, Diagnosis

Zedong Luan, Nan Yang, Xiaoping Zhang, Xiaoyan Wang, Yanli Zou, Yaqin Liu, Haoling Wang, Jinting Zhang. Prenatal ultrasonic diagnostic features of tetralogy of Fallot in early pregnancy[J]. Chinese Journal of Diagnostics(Electronic Edition), 2021, 09(01): 26-29.

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References 17

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