Correlation between ductus venosus spectrum and right ventricular diastolic function in isolated single-umbilical-artery foetus and normal foetus in third trimester

Abstract Background The cardiac diastolic functions in fetuses with isolated single umbilical artery (SUA) in the third trimester were ealuated using the spectrum of blood flow in the fetal ductus venosus (DV). Methods Color Doppler was employed to visualize the spectra of the fetal DV and tricuspid orifice in 34 fetuses with isolated SUA aged 28–39 weeks and in age-matched healthy controls. The DV flow velocities and velocity ratios were measured. The E/A ratio at the tricuspid orifice and tissue Doppler Tei index of fetal right ventricular in the two groups were measured. Results During the third trimester, the DV atrial systolic peak velocity “a” was lower in the isolated SUA group than in the control group ( P < 0.05). The correlations between the velocity ratios and the E/A ratio at the tricuspid orifice in the two groups were analyzed, and the correlation between the v/D and E/A ratios was the best (R 2 of 0.520 in the isolated SUA group and 0.358 in the control group). The correlations between the velocity ratios and the tissue Doppler Tei index of fetal right ventricular in the two groups were analyzed, and the correlation between the PIV and tissue Doppler Tei index ratios was the best (R 2 of 0.865 in the isolated SUA group and 0.627 in the control group). Conclusions In the isolated SUA group, the atrial systolic peak velocity “a” decreased, which might be related to changes in fetal cardiac functions. v/D was more closely related to the E/A ratio at the tricuspid valve and could be used to identify changes earlier in the isolated and healthy fetuses’ right ventricular diastolic functions. PIV was more closely related to the tissue doppler Tei index of fetal right ventricular and could be used to identify the isolated and healthy fetuses’ right ventricular overall functions.

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P4330Right ventricular diastolic strain rate reflects right ventricular diastolic function in patients with chronic thromboembolic pulmonary hypertension

European Heart Journal ◽

10.1093/eurheartj/ehx504.p4330 ◽

2017 ◽

Vol 38 (suppl_1) ◽

Author(s):

H. Moriyama ◽

M. Murata ◽

T. Kawakami ◽

M. Kataoka ◽

Y. Minakata ◽

...

Keyword(s):

Pulmonary Hypertension ◽

Right Ventricular ◽

Strain Rate ◽

Diastolic Function ◽

Chronic Thromboembolic Pulmonary Hypertension ◽

Ventricular Diastolic Function ◽

Diastolic Strain Rate ◽

Thromboembolic Pulmonary Hypertension ◽

Right Ventricular Diastolic Function

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Right ventricular diastolic function after repair of tetralogy of Fallot: its relationship to the insertion of a ‘transannular’ patch

Cardiology in the Young ◽

10.1017/s1047951100005187 ◽

1999 ◽

Vol 9 (4) ◽

pp. 384-391 ◽

Cited By ~ 18

Author(s):

Ayşe Güler Eročlu ◽

Ayse Sarioşlu ◽

Tayyar Sariočlu

Keyword(s):

Right Ventricular ◽

Diastolic Function ◽

Tetralogy Of Fallot ◽

Pulmonary Arteries ◽

Normal Children ◽

Forward Flow ◽

Ventricular Diastolic Function ◽

Transannular Patch ◽

Right Ventricular Diastolic Function ◽

Late Diastole

AbstractExamined was the effect of surgical technique, particularly the insertion of a transannular patch, on right ventricular diastolic function, and the relationship of forward flow in the pulmonary arteries during late diastole to right ventricular diastolic function in patients with tetralogy of Fallot. Transtricuspid, superior caval venous and pulmonary arterial Doppler spectrals were obtained and compared between 44 patients who had been repaired with a transannular patch; 14 patients who had been repaired with muscular resection and/or pulmonary valvotomy; six who had been repaired with an infundubular patch; and 32 normal children. The velocities of forward flow during late diastole in the pulmonary arteries of normal children ranged from 19.8 to 29.4 cm s−1(mean 24.9 ± 2.8 cm s−1) throughout the respiratory cycle. Restrictive right ventricular physiology, defined on the basis of increased forward flow in the pulmonary arteries during late diastole (> 30 cm s−1) was present in 25 (57°) of 44 patients with tetralogy of Fallot repaired using a transannular patch. Right ventricular volume was 50.1 ± 23.7 cm3in patients with a restrictive right ventricle and 64.9 ± 21.4 cm3in patients in whom the ventricle was non-restrictive (p< 0.03). QRS duration was 140 ± 18 and 156 ± 24 ms in patients with restrictive and non-restrictive right ventricular physiology respectively (p< 0.003). Restrictive physiology was not encountered in patients with tetralogy in whom the pulmonary valve had been preserved. It is concluded that right ventricular restriction is present in many patients with tetralogy of Fallot at mid-term follow-up subsequent to repair using a ‘transannular’ patch. Restriction is associated with smaller right ventricular size and less prolongation of the QRS complex.

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