Ductus venosus blood velocity in myeloproliferative disorders
نویسندگان
چکیده
منابع مشابه
Ductus Venosus Doppler Flow Velocity after Transplacental and Non-transplacental Amniocentesis during Midtrimester
OBJECTIVE We aimed to evaluate ductus venosus Doppler waveforms before and after amniocentesis in order to investigate any effect of amniocentesis on fetal myocardial hemodynamics. We also evaluated the umbilical artery, uterine artery and fetal mid-cerebral artery Doppler waveforms in order to investigate any relationship with ductus venosus Doppler changes. METHODS The study population cons...
متن کاملLiver and ductus venosus blood flows in fetal lambs in utero.
We evaluated the circulation of the liver and ductus venosus, using the radionuclide-labeled mkrosphere technique, in 24 chronically prepared fetal lambs. We placed catheters in fetal descending aorta and inferior vena cava, and hi a carotid artery and an umbilical vein; in 11 fetuses, we aho Inserted a catheter hi a mesenteric vein that drained into the portal vein. After allowing 2-4 days for...
متن کاملDuctus venosus blood flow in the evaluation of cardiac function in the presence of echogenic focus
Methods Seventy fetuses at 19 to 28 weeks of gestation with an IEF and 63 controls were screened using two-dimensional and power Doppler echocardiography. DV wave velocities, DV velocity ratios, and diastolic time intervals were measured. The aortic peak velocity, pulmonary artery peak velocity, atrioventricular early-diastolic filling velocity (E), atrial contraction velocity (A), and E/A rati...
متن کاملStructural evidence for mechanisms to redistribute hepatic and ductus venosus blood flows in nonhuman primate fetuses.
OBJECTIVE The ductus venosus (DV) and the intrahepatic branches of the portal vein (BPV) play an important role in umbilical blood distribution to the fetal liver and the rest of the fetal circulation. Increased DV shunting is a major fetal survival mechanism during stress situations. The availability of a nonpregnant primate animal model with similar structure and function would greatly improv...
متن کاملCardiac defects in chromosomally normal fetuses with abnormal ductus venosus blood flow at 10-14 weeks.
OBJECTIVE To assess a possible relationship between ductus venosus blood flow abnormalities and cardiac defects in chromosomally normal fetuses with increased nuchal translucency thickness at 10-14 weeks of gestation. METHODS Ductus venosus Doppler ultrasound blood flow velocity waveforms were obtained at 10-14 weeks' gestation immediately before fetal karyotyping in 200 consecutive singleton...
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ژورنال
عنوان ژورنال: Ultrasound in Obstetrics and Gynecology
سال: 2001
ISSN: 0960-7692
DOI: 10.1046/j.1469-0705.2001.00463-3.x