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Biomedical subjects

C Romanini

Publications and source records attributed to C Romanini.

At least 235 records · Page 13Linked to original sources
PubMed1980

[Sinusoidal fetal heart rhythm (author's transl)].

The authors describe 6 cases of pregnancy, four of the patients presenting fetomaternal Rhesus incompatibility, and two showing no abnormality. Fetal heart rhythm (FHR) recordings in all patients demonstrated the presence of a sinusoidal rhythm, either alone or associated with deceleration. The physiopathology of the rhythm, according to a very critical analysis of reports in the published literature (very severe fetal anemia, hypoxia), was not typical in three of the cases. The authors conclude that the observation of this sinusoidal rhythm for a period of up to 60 min, but not repeated, does not constitute a danger for the fetus. If the period is longer, however, or if there is a fetomaternal pathological condition, decelerations, or reduced amplitude of FHR oscillations, there is a very severe risk to the fetus and the need for urgent delivery has to be seriously considered.

Adult↗
PubMedDate not supplied

Early fetal circulation in pregnancies complicated by retroplacental hematoma.

The objective of this study was to investigate the effects in early gestation of retroplacental hematomas on Doppler indices measured in different fetal vascular districts and to relate these changes, if any, to the volume of hematoma and pregnancy outcome. Thirty-eight pregnancies complicated by bleeding and ultrasonographic findings of retroplacental hematomas were considered for this study. Menstrual age ranged between 9 and 14 weeks. Blood flow velocity waveforms were measured in the umbilical artery, descending aorta, middle cerebral artery, and inferior vena cava. The pulsatility index in arterial vessels was calculated as well as the percentage reverse flow in the inferior vena cava. The values obtained were compared to previously constructed reference limits. No significant differences were found for any of the Doppler indices when the values obtained in pregnancies complicated by retroplacental hematomas were compared to the reference limits. Furthermore no significant relationships were found between the Doppler indices and either the size of hematoma or pregnancy outcome. In conclusion, retroplacental hematoma does not induce hemodynamic effects in the fetal circulation before 14 weeks, menstrual age. These data do not support the use of Doppler ultrasonography in early gestation for pregnancies complicated by bleeding and retroplacental hematomas.

Abortion, Spontaneous↗
PubMedDate not supplied

The fetal behavioural states: an ultrasonic study.

In order to accurately detect the fetal behavioural state, we simultaneously measured fetal heart rate and multiple fetal activities in 27 healthy pregnant women at 38 to 40 weeks of gestation. We ultrasonically identified gross body movements, breathing movements and micturition. Analysis of fetal heart rate allowed us to distinguish two different patterns of fetal behaviour: active and quiet phases. The frequency distribution of the analysed fetal events was significantly different in these two phases. These data suggest that a complete biophysical profile of the fetus is effective in differentiating behavioural states and may improve the predictive accuracy of fetal heart rate analysis alone.

Adult↗
PubMedDate not supplied

The development of fetal behavioural states: a longitudinal study.

In order to evaluate the development of fetal behavioural states a longitudinal study was performed on 35 healthy fetuses during the last trimester of pregnancy. Fetal heart rate (FHR), gross fetal body movements (FM), fetal eye movements (FEM), fetal breathing movements (FBM) and micturition were simultaneously studied at two-week intervals from 28 weeks gestation onwards. Well-defined fetal behavioural states were observed only after 36 weeks gestation. Between 28 and 36 weeks the quiet-activity cycle of FHR was always detected and some fetal biophysical activities seemed to become related around this cycle.

Eye Movements↗