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1.
Article in Chinese | WPRIM | ID: wpr-933890

ABSTRACT

Objective:To compare the safety and efficacy of terbutaline and nifedipine for acute intrapartum fetal resuscitation (IUFR).Methods:This was a prospective randomized controlled study involving 110 pregnant women with non-reassuring fetal heart rate tracings (NRFHT) during delivery at Guangzhou Women and Children's Medical Center between January and April 2021. These women were randomly allocated to receive subcutaneous terbutaline sulphate (0.25 mg, terbutaline group) or oral nifedipine (10 mg, nifedipine group), with 55 subjects in each group. Hemodynamic parameters including blood pressure, heart rate, and oxygen saturation before and 5, 15 and 30 min after treatment as well as the success rate of intrapartum resuscitation, the onset time of medication, and the incidence of postpartum hemorrhage were analyzed using t test, Chi-square test or Fisher's exact test. Results:Two groups both showed no significant difference in the mean arterial pressure or oxygen saturation before or after treatment (all P>0.05). The heart rate was not affected in nifedipine group at any time points ( P>0.05). While the patients treated with terbutaline showed accelerated maternal heart rate 5, 15 and 30 min after administration as compared with the baseline[(97.0±20.2), (99.2±13.8), (91.8±12.6) vs (81.7±11.3) bpm, all P<0.001], but it began to decrease at 30 min, with a drop of 6.4 bpm compared with that at 15 min (95% CI: 1.5-11.2, P<0.05). None of the pregnant women had adverse reactions requiring medical intervention. The rates of successful acute resuscitation were similar in the two groups [terbutaline: 78.2% (43/55) vs nifedipine: 70.9% (39/55), χ 2= 0.77, P=0.381]. Terbutaline had a shorter onset time than nifedipine in slowing the frequency of contractions and returning fetal heart rate to class Ⅰ category [2(1-6) vs 6(1-10) min, U=2 348.50, P<0.001]. No significant difference was found between the two groups in terms of NRFHT-indicated cesarean section, assisted vaginal delivery, or second dose of tocolysis within 1 h (all P>0.05) nor in blood loss volume, postpartum hemorrhage rate, low Apgar score, low umbilical artery pH value (pH<7.2), neonatal asphyxia rate, or neonatal intensive care admission rate (all P>0.05). Conclusion:Terbutaline spends less time than nifedipine to take effect and may be an alternative for acute IUFR without significant adverse outcomes.

2.
Article in Chinese | WPRIM | ID: wpr-871064

ABSTRACT

Spatial epidemiology pertains to the description and analysis of characteristics and the development and change rules of diseases, health, and hygiene events in the population based on geographic information system (GIS) and spatial analysis technology. As a general discipline, spatial epidemiology has been widely used in studying various diseases. In the field of perinatal medicine, research has mainly focused on the relationship between obstetric factors and social factors, as well as environmental factors such as air pollution and traffic, and obstetric outcomes. We review the development direction of spatial epidemiology research in perinatal medicine, hoping this interdisciplinary and efficient data system research method could play a more significant role in clinical medicine.

3.
Article in Chinese | WPRIM | ID: wpr-871067

ABSTRACT

Antenatal corticosteroids treatment may improve the neonatal prognosis in babies born prematurely. Despite the various quality of the evidence, antenatal corticosteroids treatment may also be effective in preterm premature rupture of membranes and twin pregnancy. Antenatal corticosteroids treatment should be one of the quality standards for maternal health care in order to increase its application in obstetrics and implement effective obstetric management based on the most recent evidence.

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