Simultaneous monitoring of separate fetal magnetocardiographic signals in twin pregnancy

First trimester fetal karyotyping in twin pregnancy.

Fetal chromosome analysis in a twin pregnancy during the first trimester is described. Problems of the reliability of tissue sampling are also discussed. The authors emphasise the advantage of direct cytogenetic analysis from the tissue specimens used for enzyme determination or DNA studies.

Fetal Hydrops in a Twin Pregnancy

Hydrops fetalis is a well known condition with an extensive list of differential diagnoses. The etiology is divided into immunerelated and nonimmune-related types, and currently almost 90% of cases are associated with the latter category [1]. Among the various nonimmune-related causes, one of the most common are cardiac aberrations [2]. Prenatal ultrasound serves as the initial diagnostic tool ...

Simultaneous recording of fetal breathing movements and body movements in twin pregnancy.

Fetal breathing and body movements were simultaneously evaluated in twin pregnancies in order to determine to what extent these activities occur in a synchroneous pattern in both twin fetuses and if fetal position, presentation or sex have an influence on their behavior. Thirty healthy pairs of twins at 34-37 weeks of gestation were studied. Twenty-six percent of fetal body movements and 49% of...

Separation of Abdominal Fetal Electrocardiograms in Twin Pregnancy

A combined application of independent component analysis and projective filtering of the time-aligned ECG beats is proposed to solve the problem of fetal ECG extraction from multi-channel maternal abdominal electric signals. The developed method is employed to process the four-channel abdominal signals recorded during twin pregnancy. The signals are complicated mixtures of the maternal ECG, the...

I-21: Outcome of Twin Pregnancy