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OBJECTIVE To determine whether delivery can be predicted using transabdominal uterine electromyography. METHODS A total of 99 patients were grouped as either term (37 weeks or more) or preterm (less than 37 weeks). Uterine electrical activity was recorded for 30 minutes in clinic. Electromyographic "bursts" were evaluated to determine the power density(More)
Nitric oxide (NO) is a major paracrine mediator and important regulatory agent in various female reproductive processes, such as ovulation, implantation, pregnancy maintenance, labor and delivery. Ovulation: Circulating NO-products are increased during follicle development and decreased right after ovulation. INOS-inhibition results in a 50% reduction of(More)
In this review, we outline studies showing that the uterus (myometrium) and cervix pass through a conditioning step in preparation for labor. This step is not easily identifiable with present methods designed to assess the uterus or cervix. In the uterus, this seemingly irreversible step consists of changes in the electrical properties that make muscle more(More)
OBJECTIVE Differentiating uterine contractions leading to preterm birth from ineffective uterine activity is difficult with current tools. Uterine electromyographic activity is recordable and consists of bursts (group of action potentials) characterized by characteristics that are different during pregnancy and labor. Our aim was to identify the chronology(More)
Severe peripartum hemorrhage (PPH) contributes to maternal morbidity and mortality and is one of the most frequent emergencies in obstetrics, occurring at a prevalence of 0.5-5.0%. Detection of antepartum risk factors is essential in order to implement preventive measures. Proper training of obstetric staff and publication of recommendations and guidelines(More)
BACKGROUND It has recently been shown that humoral antigastric autoreactivities occur in a substantial number of Helicobacter pylori infected patients. AIMS To analyse the relevance of such antigastric autoantibodies for histological and serological parameters of the infection as well as for the clinical course. METHODS Gastric biopsy samples and sera(More)
OBJECTIVES Review the uterine electromyography (EMG) and cervical light-induced fluorescence (LIF) devices and their role in the evaluation of uterine and cervical function in comparison with present methods. DESIGN Review of recent studies. SETTING University of Texas Medical Branch Labour and Delivery Clinics. POPULATION Various groups of pregnant(More)
AIMS To determine interleukin (IL)-6 and IL-8 concentrations in the lower uterine segment in patients with chorioamnionitis compared to those without. METHODS Biopsy specimens from the lower uterine segment of 33 patients with chorioamnionitis were matched to specimens of 33 patients without. The biopsies had been taken during cesarean section. The(More)
OBJECTIVE The study was conducted to investigate whether the strength of uterine contractions monitored invasively by intrauterine pressure catheter could be determined from transabdominal electromyography (EMG) and to estimate whether EMG is a better predictor of true labor compared to tocodynamometry (TOCO). STUDY DESIGN Uterine EMG was recorded from(More)
BACKGROUND Preterm birth is the primary cause of the neonatal mortality and morbidity. There will be no preterm birth without a cervical softening. Nitric oxide (NO) is shown to be a mediator of term cervical ripening. The aim of this study was to investigate mRNA expression of the three isomers of NO synthases (NOS) and to identify them by(More)