STAN-recorded intrapartum loss of beat-to-beat variation associated with prolonged QT-interval: indicative for fetal hypocalcemia?
نویسندگان
چکیده
منابع مشابه
ارتباط الگوی ضربان قلب جنین با تعداد گلبول‌های قرمز هسته‌دار در خون بند ناف هنگام تولد
Background: Previous studies have suggested the presence of a relationship between the increase of NRBC and the duration and intensity of asphyxia. The purpose of this study was to evaluate the relationship of fetal heart rate pattern and the number of NRBC's in umbilical cord blood sample at birth. Methods: We enrolled 322 pregnant women with healthy, term fetuses who referred to Mirza Koucha...
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Cardiac arrhythmias, in particular life-threatening Torsades de Pointes (TdP) are serious adverse effects associated with a number of pharmaceuticals belonging to different classes. It is therefore critical to have reliable biomarkers for assessing this risk during pre-clinical testing of new compounds. Prolongation of cardiac action potential and consequently of the QT interval of the ECG is g...
متن کاملRelation between beat-to-beat QT interval variability and T-wave amplitude in healthy subjects.
OBJECTIVES Elevated beat-to-beat QT interval variability (QTV) has been associated with increased cardiovascular morbidity and mortality.The aim of this study was to investigate interlead differences in beat-to-beat QTV of 12-lead ECG and its relationship with the T wave amplitude. METHODS Short-term 12-lead ECGs of 72 healthy subjects (17 f, 38 ± 14 years; 55 m, 39 ± 13 years) were studied. ...
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Historically, the heart rate corrected QT (QTc) interval has been the standard method to assess for impaired ventricular repolarization, particularly for drug development. However, QTc does not reflect changes in autonomic state or QT-RR hysteresis which can also affect the interpretation of arrhythmogenic risk. With the advent of more accurate algorithms to automatically measure the QT interva...
متن کاملConventional QT Variability Measurement vs. Template Matching Techniques: Comparison of Performance Using Simulated and Real ECG
Increased beat-to-beat variability in the QT interval (QTV) of ECG has been associated with increased risk for sudden cardiac death, but its measurement is technically challenging and currently not standardized. The aim of this study was to investigate the performance of commonly used beat-to-beat QT interval measurement algorithms. Three different methods (conventional, template stretching and...
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عنوان ژورنال:
- The journal of maternal-fetal & neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians
دوره 20 1 شماره
صفحات -
تاریخ انتشار 2007