Publications by authors named "William C L Yip"

Article Synopsis
  • The case report discusses a rare combination of two heart conditions: cor triatriatum and partial atrioventricular septal defect in a pediatric patient.
  • Cor triatriatum is a congenital heart defect characterized by an abnormal division of the left atrium, leading to potential complications in blood flow.
  • The report highlights the importance of recognizing and diagnosing this unusual combination to manage the child's condition effectively.
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Two patients with perimembranous ventricular septal defects (VSDs) and inlet extension have undergone uncomplicated transcatheter device closure using the Amplatzer membranous VSD device. Both patients developed complete heart block 2-4 days from the closure. Both patients responded well to high-dose intravenous therapy with steroids and high-dose oral anti-inflammatory aspirin.

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Objectives: To evaluate the fetal cardiac time intervals from the longitudinal analysis of noninvasive fetal electrocardiography (fECG) in normal pregnancies.

Methods: One hundred singleton pregnancies were examined in this longitudinal study. Cardiac time intervals were derived from fetal electrocardiograms obtained noninvasively using three electrodes placed on the maternal abdomen.

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We document the value of non-invasive fetal electrocardiography (fECG) in a case of fetal arrhythmia in which an unnecessary cesarean section was almost performed. The fetal heart rate (fHR) was 60-70 beats per minute (bpm) on the cardiotocography (CTG), with occasional, sudden fluctuations to 130 bpm. This was probably a result of the technical limitations of the CTG.

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