Phase Of Labor Research Articles

The Effect on the Birth Process of Endogenous Oxytocin Release Via Coitus at Home in Pregnant Women in the Latent Phase.

This study was conducted to determine the effect of endogenous oxytocin release via coitus at home on the delivery process in pregnant women who were not hospitalized in the latent phase. For healthy pregnant women who can deliver spontaneously, it is recommended to be admitted to the delivery room during the active phase of labor. When the pregnant woman is admitted to the delivery room in the latent phase before the active stage, pregnant women spend more time in the delivery room, which makes medical intervention inevitable. 112 pregnant women for whom hospitalization in the latent phase was recommended were included in the randomized controlled study. They were divided into two groups in which sexual activity in the latent phase was recommended (n=56) and the control group (n=56). In our study, the duration of the 1st stage of labor was found to be significantly shorter in the group in which sexual activity in the latent phase was recommended, compared to the control group (p=0.001). Again, the need for amniotomy, labor induction with oxytocin, analgesics and episiotomy decreased. Sexual activity can be considered as a natural way to speed up labor, reduce medical interventions, and prevent postterm pregnancy.

Efficacy of transcutaneous electrical acupoint stimulation combined with epidural block for labor analgesia in parturients with preeclampsia

Objective To evaluate the efficacy of transcutaneous electrical acupoint stimulation (TEAS) combined with epidural block for labor analgesia in parturients with preeclampsia. Methods One hundred and twenty parturients with preeclampsia who were at full term with a singleton fetus in vertex presentation, aged 24-37 yr, weighing 66-105 kg, with height between 157-171 cm, of American Society of Anesthesiologists physical status Ⅲ, were divided into 3 groups (n=40 each) using a random number table method: epidural labor analgesia in active phase of labor group (group A), epidural labor analgesia in latent phase of labor group (group B) and TEAS combined with epidural labor analgesia in active phase of labor group (group C). Epidural labor analgesia was performed in active phase of labor (cervical dilatation≥3 cm) in group A and in latent phase of labor (cervical dilatation≥1 cm) in group B. In group C, TEAS was carried out in latent phase of labor, bilateral Hegu and Sanyinjiao acupoints were selected as the main acupoints and Zusanli as the auxiliary acupoints, patients received TEAS with a frequency 2/100 HZ, disperse dense waves, intensity (starting at a voltage of 15 mA) increasing to the maximum current that could be tolerated until delivery of fetus, and epidural labor analgesia was performed when parturients were in active phase of labor.Epidural labor analgesia solution contained the mixture (100 ml) of 0.08% ropivacaine and sufentanil 0.4 μg/ml, and the analgesia pump was set up to deliver a 5 ml bolus dose with a 30-min lockout interval and background infusion at 8 ml/h and then turned off after delivery of fetus.Mean arterial pressure and visual analogue scale (VAS) scores were recorded when the cervical dilation was 1, 2, 3, 4 and 10 cm and immediately after delivery.The labor time, volume of postpartum hemorrhage, requirement for oxytocin, cesarean section, adverse reactions and Apgar score of the newborn were recorded.Maternal venous blood samples were collected when the cervical dilation was 1 and 10 cm for determination of the concentrations of dynorphin (DYN) and cortisol in serum and adrenocorticotropic hormone, norepinephrine and epinephrine in plasma (by enzyme-linked immunosorbent assay) and serum glucose concentration (by glucose oxidase method). Results Compared with group C, the VAS scores and mean arterial pressure were significantly increased when the cervical dilation was 2 and 3 cm, the concentrations of DYN, cortisol and blood sugar in serum and adrenocorticotropic hormone, norepinephrine and epinephrine in plasma were increased when the cervical dilation was 10 cm(P 0.05), and the duration of the first stage of labor was significantly prolonged, the requirement for oxytocin was increased, the serum concentration of DYN was decreased when the cervical dilation was 10 cm (P 0.05). Conclusion Compared with epidural labor analgesia performed in the latent and active phases of labor, TEAS combined with epidural block provides better efficacy for labor analgesia in parturients with preeclampsia. Key words: Electric stimulation therapy; Analgesia, epidural; Labor pain; Pre-eclampsia

Research the perinatal anxiety of maternal

Objective To explore anxious emotion in women during the perinatal period. Meth- ods A study on 168 healthy primiparas at 37 to 42 weeks' gestation was conducted. The size of pelvis and fatal status were normal, and the estimated weight of fatuses ranges from 2500g to 4000g. The women expected for vaginal delivery were examined by SAS at 36 weeks' gestation, the beginning of delivery, and three days after labor. The SAS scores and labor phases were compared. Results SAS scores differed significantly. The score was the highest at the beginning of delivery but decreased after labor. The higher the scores, the longer the labor phase. Conclusions Pregnancy and child delivery is an important period for women. Psychological nursing can help the pregnant women go over the delivery period successfully. Key words: Perinatal period; Anxiety; Labor phase