Reference values of ductus venosus blood flow velocities and waveform indices from 10 to 20�weeks of gestation

Axt-Fliedner, R; Diler, S.; Georg, Thomas; Friedrich, Martin; Diedrich, K.

doi:10.1007/s00404-003-0484-y

Cited by 15 publications

(12 citation statements)

References 17 publications

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“…Our findings were in close relation with Axt-Fliedner et al's [16] findings that were characterized by a parabolic pattern; the similarity with their result was probably due to the use of the same insonation angle correction. Fig.…”

Section: Discussionsupporting

confidence: 92%

“…In comparison to our reference DV A wave velocity curve with those published by Bahlmann et al [15], Axt-Fliedner et al [16], and Kessler et al, [17], we have demonstrated a pattern for A wave velocity with some difference in ranges. Our findings were higher than Kessler et al's [17] findings as shown in Fig.…”

Section: Discussionsupporting

confidence: 79%

“…In comparison, the reference ranges of DV PSV curve published by Bahlmann et al [15] were at 14 weeks 48, at 30 weeks 65.71, and at 40 weeks 65.83, while our results were at 14 weeks 41.4, at 36 weeks 62.63, and at 40 weeks 57.11. Comparing with Axt-Fliedner et al [16] (at 11 weeks 34.1, at 16 weeks 45.5, and at 20 weeks 57.5), our results were at 11 weeks 37.14, at 16 weeks 44.69, and at 20 weeks 51.58. Our findings were close to Bahlmann et al's [15] findings which had few observations for the last weeks of pregnancy, also close to Axt-Fliedner et al's [16] findings which had few observations in the early weeks and excluded fetuses with biometric parameters of the head and abdomen outside the 90% reference interval.…”

Section: Discussionsupporting

confidence: 69%

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Reference values for ductus venosus flow in normal gestation among an Egyptian population

Zytoon

El-Abakawy²,

Hassanein

2020

Egypt J Radiol Nucl Med

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Background: Doppler studies of the fetal circulation have demonstrated the importance of the ductus venosus in the continuous monitoring of fetuses, especially those of high-risk pregnancies that can lead to abnormal pregnancy outcome. We tried to put reference values for the normal ductus venosus (DV) flow in normal gestation to be used in further studies assessing the different pathologies. Results: The DV length ranged from 9.8 to 20.9 mm, and the diameter ranged from 0.6 to 2.3 mm. The DV pulsatility index, resistive index, and systolic velocity/maximum velocity during atrial wave ratio declined linearly with increasing of gestational age and were increased after that during the last weeks of pregnancy. Ductus venosus S wave and A wave velocities increased linearly from a mean of 38.30 at the first trimester to 61.68 at the third trimester and from a mean of 11.38 at the first trimester to 30.71 at the third trimester respectively. Conclusion: A reference range of the normal ductus venosus different Doppler parameters was constructed in a centile module.

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Section: Discussionsupporting

confidence: 92%

Section: Discussionsupporting

confidence: 79%

Section: Discussionsupporting

confidence: 69%

See 1 more Smart Citation

Reference values for ductus venosus flow in normal gestation among an Egyptian population

Zytoon

El-Abakawy²,

Hassanein

2020

Egypt J Radiol Nucl Med

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“…1 The reference value for an abnormal DV PI was 1 or greater (95th percentile for gestational age). [1][2][3] A single investigator (J.C.) experienced in fetal echocardiography performed all examinations. Medical records were reviewed for clinical information such as maternal and fetal outcomes, gestational age at the delivery, karyotype, autopsy results, and neonatal echocardiograms.…”

Section: Methodsmentioning

confidence: 99%

“…everal studies have shown the utility of color flow and Doppler sonography as a powerful diagnostic tool for the evaluation of fetal venous and intracardiac blood flow. [1][2][3] Venous Doppler flow measurements provide additional detail in the assessment of the fetal circulation, particularly in the setting of fetal growth restriction, cardiac defects, and aneuploidy. [4][5][6][7][8][9][10][11] The ductus venosus (DV) is a fetal shunt of welloxygenated blood connecting the umbilical vein with the right atrium and directing flow across the foramen ovale into the left atrium.…”

mentioning

confidence: 99%

Second-Trimester Ductus Venosus Measurement and Adverse Perinatal Outcome in Fetuses With Congenital Heart Disease

Bianco

Small

Julien

et al. 2006

Journal of Ultrasound in Medicine

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First‐trimester treatment of fetal anemia secondary to parvovirus B19 infection

Kempe

Rösing

Berg

et al. 2007

Ultrasound in Obstet & Gyne

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Here we report two cases of first-trimester parvovirus B19 CASE REPORTS Case 1A 32-year-old primigravida was referred to our unit after routine ultrasound examination revealed increased fetal nuchal translucency (NT) at 13 + 1 weeks' gestation. A detailed sonographic evaluation demonstrated an NT of 4.4 mm, biventricular myocardial hypertrophy, moderate skin edema, mild ascites and bilateral pleural effusion. The ductus venosus (DV) blood flow was normal (positive awave, pulsatility index for veins (PIV): 1.56) 1 . However, the measurement of the fetal middle cerebral artery peak systolic velocity (MCA-PSV) showed an increased velocity of 37 cm/s, suggestive of fetal anemia (Figure 1). Maternal parvovirus (PV) infection was diagnosed by determining PV-specific immunoglobulin-G (IgG) and IgM as well as PV-B19 DNA by polymerase chain reaction (PCR). Fetal karyotype was normal. Subsequently, fetal therapy by cordocentesis was offered. The placenta was located laterally. Because of the softness of the 25-G spinal needle and an inability to correct the intrauterine position, three attempts were needed to place the needle next to the umbilical cord insertion site. No paralyzing agent was used. The umbilical vein was then punctured in one attempt and 3 mL of packed red cells were transfused. The initial hemoglobin count was 0.8 g/dL. No bradycardia was observed during the procedure, which took about 2 minutes.After 2 days, decline of the MCA-PSV and complete resolution of the fetal hydrops were observed. Ultrasound and Doppler examinations were continued for a period of 10 weeks at 3-week intervals. Measurements of MCA-PSV continued to show velocities in the upper percentile range, but no additional signs of fetal anemia were detected. However, at 24 + 5 weeks' gestation the fetus presented again with severe hydrops fetalis and cardiomegaly. The measurement of MCA-PSV showed an increased velocity of 85 cm/s. Cordocentesis and intrauterine blood transfusion were performed. The initial hemoglobin count was 1.4 g/dL (reticulocytes 13.2%, thrombocytes 22/nL). PCR for PV-B19 DNA was positive in maternal blood as well as in fetal ascites and blood. Two further intrauterine blood transfusions followed (at 25 + 3 and 26 + 2 weeks' gestation) (Table 1) and finally

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Reference values of ductus venosus blood flow velocities and waveform indices from 10 to 20�weeks of gestation

Cited by 15 publications

References 17 publications

Reference values for ductus venosus flow in normal gestation among an Egyptian population

Reference values for ductus venosus flow in normal gestation among an Egyptian population

Second-Trimester Ductus Venosus Measurement and Adverse Perinatal Outcome in Fetuses With Congenital Heart Disease

First‐trimester treatment of fetal anemia secondary to parvovirus B19 infection

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