Presence of pulsations and reproducibility of waveform recording in the umbilical and left portal vein in normal pregnancies

Splunder, I. van; Huisman, Tjeerd W.A.; Stijnen, Theo; Wladimiroff, J. W.

doi:10.1046/j.1469-0705.1994.04010049.x

Cited by 32 publications

(22 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The phenomenon was later also identified as a poor prognostic factor in hydropic fetuses [14]. Umbilical venous pulsation is a normal finding in fetuses before 13 weeks of gestation [39], and is occasionally seen in late pregnancy, particularly in the deep portions of the umbilical vein in the fetal abdomen [44]. The phenomenon may occur more frequently in anemic fetuses [5].…”

Section: Wave Propagation In Fetal Veinsmentioning

confidence: 99%

Fetal venous circulation - an update on hemodynamics

Kiserud¹

2000

Journal of Perinatal Medicine

View full text Add to dashboard Cite

Section: Wave Propagation In Fetal Veinsmentioning

confidence: 99%

Fetal venous circulation - an update on hemodynamics

Kiserud¹

2000

Journal of Perinatal Medicine

View full text Add to dashboard Cite

“…We found visible pulsation in the umbilical vein at the abdominal inlet (umbilical ring) in 242/279 participants (87%, 95% CI 82-90), which was more common than in the cord (43/198, 22%, 95% CI [16][17][18][19][20][21][22][23][24][25][26][27] and in the intra-abdominal section of the vein (84/277, 30%, 95% CI 25-36) (P < 0.001) (Figure 2).…”

Section: Resultsmentioning

confidence: 97%

“…Conversely, the high compliance of the sizeable intraabdominal umbilical vein in late pregnancy makes pulsation a rare event. The commonly recorded pulsation in the portal system during the second half of a normal pregnancy 18,23 may have a similar reason: the transverse portal sinus (left portal branch) has a considerably smaller dimension compared to the umbilical vein 24 . During abnormal cardiac physiology 25,26 an augmented atrial contraction is transmitted along the inferior vena cava and ductus venosus, which act as a transmission line to reach the intra-abdominal umbilical vein 9,15 .…”

Section: Discussionmentioning

confidence: 96%

The effect of vascular constriction on umbilical venous pulsation

Skulstad¹,

Kiserud²,

Rasmussen³

2003

Ultrasound in Obstet & Gyne

View full text Add to dashboard Cite

Objectives Results The incidence of umbilical venous pulsation was higher at the umbilical ring in the abdominal wall (242/279, 87%, than in the cord (43/198,22%,30%, (P < 0.001). When pulsation was observed intra-abdominally, the pulsatility was not different from that at the umbilical ring (P = 0.16). However, the lowest pulsatility was found in the cord vein (P < 0.0001), where the largest vein diameter was found. ConclusionThe high incidence of venous pulsation at the umbilical ring where diameter and compliance are low supports the suggestion that local compliance is an important factor influencing pulsation in fetal veins.

show abstract

“…É preconizada a análise qualitativa da morfologia do fluxo: com ou sem pulsações. Pulsações monofásicas podem ser observadas em até 20% dos fetos normais no terceiro trimestre 94 . Este achado é considerado benigno na ausência de outras alterações indicativas de comprometimento circulatório fetal.…”

Section: Veia Umbilicalunclassified

Avaliação da vitalidade fetal anteparto

Nomura¹,

Miyadahira²,

Zugaib³

2009

Rev. Bras. Ginecol. Obstet.

View full text Add to dashboard Cite

RevisãoResumo O contexto atual da atividade médica exige do obstetra e ginecologista ampla compreensão dos avanços científicos e tecnológicos de sua área. O objetivo primordial da avaliação fetal antenatal é identificar fetos de risco para eventos adversos ou para o óbito e, assim, atuar preventivamente para evitar o insucesso. O perfil biofísico fetal atinge sua máxima eficiência quando aplicado dentro do contexto clínico de cada caso. Em gestações de alto risco, a doplervelocimetria da artéria umbilical mostrou-se útil para melhorar os resultados perinatais. Na restrição de crescimento fetal por insuficiência placentária grave, antes da 34ª semana de gestação, a doplervelocimetria do ducto venoso tem sido importante instrumento na condução dos casos. Nenhum teste isoladamente é considerado o melhor na avaliação da vitalidade fetal anteparto, entretanto, a análise conjunta de todos os métodos irá propiciar melhor compreensão da resposta fetal à hipóxia. AbstractThe present context of medical practice demands from the obstetrician and gynecologist broad understanding of the scientific and technological advances of the area. The main purpose of prenatal evaluation is to identify fetuses at risk for adverse events or death, for preventive action to avoid mishappenings. The determination of fetal biophysical profile reaches its maximum efficiency when applied within the clinical context of each case. In high risk gestations, the Doppler velocimetry of the umbilical artery has shown to be useful to improve perinatal outcome. In the fetal growth deficit, due to severe placentary insufficiency, Doppler velocimetry of the venous duct has been showing to be an important tool in handling of the cases before the 34 th week of gestation. Although no test itself is considered the best to evaluate the fetus's prenatal vitality, the joint analysis of all methods may lead to a better understanding of the fetal response to hypoxia.

show abstract

Presence of pulsations and reproducibility of waveform recording in the umbilical and left portal vein in normal pregnancies

Cited by 32 publications

References 0 publications

Fetal venous circulation - an update on hemodynamics

Fetal venous circulation - an update on hemodynamics

The effect of vascular constriction on umbilical venous pulsation

Avaliação da vitalidade fetal anteparto

Contact Info

Product

Resources

About