Reference values for ductus venosus Doppler flow measurements at 10–14 weeks of gestation

Prefumo, Federico; Risso, Domenico; Venturini, P. L.; Biasio, Pierangela De

doi:10.1046/j.1469-0705.2002.00710.x

Cited by 31 publications

(24 citation statements)

References 24 publications

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“…The results are similar to those of previous reports [2,7,8,9,10]. These results confirmed that cardiac compliance still increased during this gestational age range.…”

Section: Discussionsupporting

confidence: 83%

“…The results are similar to the reports by Prefumo et al [8] and Carvalho et al [9], which showed a nonstatistically significant change and no variation in PIV with gestational age between 10 and 14 weeks. One possible and important reason to explain this finding is the immaturity of establishment of fetomaternal circulation that reflects high umbilical artery resistance during this gestational age.…”

Section: Discussionsupporting

confidence: 82%

“…Previous reports have shown abnormal flow velocity, increased PIV, or waveform of DV and reversed A-wave in fetuses with congenital heart disease or chromosomal abnormalities, especially in trisomy 21 fetuses [3,4,5,6]. However, the studies revealed some contradictory results or did not evaluate DV Doppler indices, especially the PIV [7,8,9,10]. …”

Section: Discussionmentioning

confidence: 82%

“…However, to evaluate the effectiveness of these abnormal flow patterns in association with these abnormal outcomes, it is essential that normal reference ranges are first constructed, and these may be specific to particular populations. Previous reports have had contradictory results or have not evaluated DV Doppler indices, especially the pulsatility index for veins (PIV) [7,8,9,10]. …”

Section: Introductionmentioning

confidence: 99%

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A Reference for Ductus Venosus Blood Flow at 11-13<sup>+6</sup> Weeks of Gestation

Pruksanusak¹,

Kor-anantakul²,

Suntharasaj³

et al. 2014

Gynecol Obstet Invest

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Objective: To establish reference ranges for ductus venosus (DV) blood flow assessment obtained transabdominally at 11-13⁺⁶ weeks of gestation. Methods: A cross-sectional study was conducted on singleton pregnancies with a crown-rump length (CRL) ranging from 45 to 84 mm, normal fetus, and subsequent newborn birth weight appropriate for gestational age. Measurements of DV Doppler variables were performed by experienced sonographers: peak velocity during ventricular systole (S-wave) and diastole (D-wave), nadir during atrial contraction (A-wave), time-averaged maximum velocity (TA_max), pulsatility index for veins (PIV), and peak velocity index for veins (PVIV). Results: A total of 304 fetuses were included. The mean CRL was 60.7 ± 7.2 mm (range: 45.9-75.5). The mean nuchal translucency measurement was 1.4 ± 0.4 mm. The S-wave, D-wave, A-wave, and TA_max values varied significantly with gestational age (p < 0.05) and regression models were constructed for each variable. The remaining variables, systolic/atrial wave ratio, preload index, PVIV, and PIV, did not vary significantly with gestational age within this CRL range. Conclusion: Reference ranges for DV Doppler assessment were established in normal fetuses. These ranges may be a useful tool for evaluation of anueploidy and fetal cardiac function.

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“…The results are similar to those of previous reports [2,7,8,9,10]. These results confirmed that cardiac compliance still increased during this gestational age range.…”

Section: Discussionsupporting

confidence: 83%

Section: Discussionsupporting

confidence: 82%

Section: Discussionmentioning

confidence: 82%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Reference for Ductus Venosus Blood Flow at 11-13<sup>+6</sup> Weeks of Gestation

Pruksanusak¹,

Kor-anantakul²,

Suntharasaj³

et al. 2014

Gynecol Obstet Invest

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“…Further reports on experiences of other centers are needed to confirm our findings. It can be speculated that the observed DVPI decrease over gestation was not apparent in previous series due to restrictions imposed by an extremely limited gestational period (3 weeks) [3,4,6], but it has been clearly demonstrated in wider gestational periods [10,11,12]. …”

Section: Discussionmentioning

confidence: 99%

Updated Reference Ranges for the Ductus Venosus Pulsatility Index at 11–13 Weeks

et al. 2012

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Objective: To update the reference ranges for the ductus venosus pulsatility index (DVPI) at 11+0 to 13+6 gestational weeks. Methods: DVPI was calculated in 14,444 singleton fetuses at 11+0 to 13+6 weeks in two Fetal Medicine Centers, during a 4-year period. Using previously described medians, DVPI evolution was assessed both over the study period on a yearly basis and over gestation, grouping fetuses according to 5-mm crown-rump length (CRL) ranges. Weighted DVPI medians, the 5th and 95th percentiles and distribution parameters for unaffected and trisomy 21 fetuses were newly calculated. Results: A significant DVPI multiple of the median decrease was observed over both the study period (p < 0.01) and over gestation (p < 0.01) using previous medians, in the two centers. Newly calculated weighted medians were lower than those previously described, decreasing with CRL. Distribution parameters calculated using the new medians were different from those previously described. Conclusion: DVPI reference ranges were lower than those previously reported and decreased with CRL. Updated medians and distribution parameters should be considered to include the DVPI as a Gaussian marker in trisomy 21 screening and for quality control purposes.

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Current Awareness in prenatal diagnosis

2002

Prenatal Diagnosis

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In order to keep subscribers up‐to‐date with the latest developments in their field, John Wiley & Sons are providing a current awareness service in each issue of the journal. The bibliography contains newly published material in the field of prenatal diagnosis. Each bibliography is divided into 17 sections: 1 Books, Reviews & Symposia; 2 General Interest; 3 Normal Fetal Development; 4 Gametogenesis and Pre‐implantation Diagnosis; 5 First Trimester Diagnosis; 6 Second Trimester Diagnosis; 7 Fetal Diagnosis by Ultrasound and Other Imaging; 8 Maternal Screening; 9 Screening for Carriers of Genetic Abnormality; 10 Technological Developments; 11 Confined Placental Mosaicism and Uniparental Disomy; 12 Molecular Cytogenetics; 13 Fetal Cells in Maternal Circulation; 14 Fetal Therapy; 15 Psychosocial Aspects; 16 Epidemiology and Environmental Factors; 17 Developmental Pathology. Within each section, articles are listed in alphabetical order with respect to author. If, in the preceding period, no publications are located relevant to any one of these headings, that section will be omitted

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Reference values for ductus venosus Doppler flow measurements at 10–14 weeks of gestation

Abstract: Objectives

Cited by 31 publications

References 24 publications

A Reference for Ductus Venosus Blood Flow at 11-13<sup>+6</sup> Weeks of Gestation

A Reference for Ductus Venosus Blood Flow at 11-13<sup>+6</sup> Weeks of Gestation

Updated Reference Ranges for the Ductus Venosus Pulsatility Index at 11–13 Weeks

Current Awareness in prenatal diagnosis

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