Badania dopplerowskie naczyń płodowych w diagnostyce niedotlenienia okołoporodowego

Robert Bartkowiak

Streszczenie
Restricted intrauterine support to the fetus can lead to intrauterine growth retardation (IUGR) and hypoxia and is associated with a high risk of perinatal morbidity and mortality. The main effects of moderate to severe hypoxia on the fetus are different degrees of blood flow redistribution and reduction of oxygen consumption to maintain oxygen delivery to the central organs (the „brain sparing” effect). Recently, a Doppler ultrasonic technology (continuous wave, pulsed wave, colour flow imaging) has been developed for the non invasive measurment of flow. Doppler velocimetry detects the flow velocity waveform (FVW) which reflects the cardiac output, the vascular compliance and the resistance to flow in a defined point of the vessel. Velocity waveform indices (S/D, Pi, Ri) have been applied to a number of fetal vessels. Doppler ultrasound, when combined with ultrasonic imaging, offers possibilities of estimating fetal hypoxia in some detail, without significant discomfort for the patient and without any known risk.

To jest tylko fragment artykułu. Aby przeczytać całość, przejdź do Czytelni medycznej.