Objective Study the effect of transvaginal bitths in term pregnant women with less amniotic fluid B-mode ultrasonography suggested on neonatal and find the correct approach. Methods The maternity outcome of 166 pregnant women with less amniotic B-mode ultrasonography suggested fluid was compared with that of 187 term pregnant women with normal amniotic fluid.Results There was no significant difference on severe meconium stained amniotic fluid and the rate of neonatal asphyxin between two groups.Conclusion Transvaginal biths can be tried in term pregnant women with less amniotic fluid B-mode ultrasonography suggested under the intensive care.

Objective To study the characteristics of its pathologic and neurophysiologic changes of a ani-mal model of cervical spinal cord compression, and to explore the relationship between the severity of spinal cord inju-ry and its functions. Methods Thirty-two rabbits were divided into 4 groups randomly. A catheter was inserted intothe vertebral canal and a balloon was inflated to compress spinal cord in epidural space. According to the diameter ofballoon, the animals were divided into 4 groups (A, B, C, D group), Each group consisted of 8 rabbits. The corti-cal somatosensory evoked potential (CSEP) and motor evoked potential (MEP) were used to assess neurologicalfunction. Motor function behavior was scored before and on 1, 3, 7 and 14 days after surgery. Histological observa-tions were performed, pathological changes were observed by light and electron microscope. Results Spinal cordcompression resulted in a gradual increase of the peak latency and significant decrease of the peak amplitude. The la-tency and amplitude of MEP were changed more dramatically than those of CSEP. The result indicated that MEP wasmore sensitive than CSEP to the compression. Analysis also revealed that the severer the pathologic changes, the lon-ger the latency and the lower the amplitude of the evoked potentials. Conclusion The animal model presented inthis paper was simple and standardized. Evoked potentials as a noninvasive technique have great value in monitoringspinal cord function. The variance of amplitude and the latency in significantly correlate with the degree of compres-sion of the spinal cord.

Objective To compare the effect of different concentrations of ropivacaine in epidural analgesia of childbirth.Methods According to the digital table,300 cases of our hospital childbirth puerpera were randomly divided into A,B,C three groups.A group was given 0.125％ ropivacaine compound fentanyl analgesia,B group was given 0.1％ ropivacaine compound fentanyl analgesia,group C was not required analgesia childbirth.The childbirth of three groups was observed.Results In group A,the labor time was (261.38 ± 19.87) min,postpartum 2h blood loss was (241.03 ± 34.57) mL.In group B,the labor time was (260.09 ± 19.69) mnin,postpartum 2h blood loss was (238.66 ± 35.01) mL.In group C,the labor time was (270.46 ± 20.86) min,postpartum 2h blood loss was (251.75 ± 36.79) mL.Statistical analysis showed that there was no significant difference (t =0.472,1.035 ; all P ＞ 0.05).In group A,the fetal heart rate was (142.34 ±21.57)times/min,neonatal Apgar score was (9.77 ± 0.21),and umbilical artery blood pH value was (7.27 ± 0.06).In group B,fetal heart rate was (145.21 ± 21.49) times/min,neonatal Apgar score was (9.79 ± 0.20),and umbilical artery blood pH value was (7.26 ± 0.08) ; Fetal heart rate of group C was (143.78 ±22.01)times/min,neonatal Apgar score was (9.64 ±0.24),and umbilical artery blood pH value was (7.28 ± 0.07).The differences among three groups were not statistically significant (t =0.763,0.360,0.114,all P＞ 0.05).Analgesic effect time of group A was (12.13 ± 1.76) min,pain score was (1.03 ±0.46) points,analgesic harem duration was (22.39 ± 3.21) s,analgesic harem time interval was (3.26 ± 1.49) min,the cesareandelivery rate was 8.00％.In group B,the analgesic effect time was (12.04 ± 1.69mnin),pain score was (1.01 ± 0.52) points,analgesic harem duration was (21.04 ± 3.18) s,analgesic harem time interval was (3.4.9 ±1.51)min,the cesarean delivery rate was 9.00％ ; Duration of the analgesic effect of group C was (16.77 ±16.77) min,pain score was (3.76 ± 1.23) points,analgesic harem duration was (26.98 ± 5.87) s,analgesic harem time interval was (2.65 ± 0.75) min,the cesarean delivery rate was 48.00％.The differences between groups were statistically significant (chi square or t =6.148,8.522,5.749,4.095,61.316 ;P ＜ 0.05).Conclusion Application of 0.1％ ropivacaine compound fentanyl anesthesia can effectively relieve patients'pain,shorten labor and reduce postpartum 2h blood loss,impact less on contractions at the same time,reduce the incidence of cesarean delivery,has no influence on the neonate,which is worth popularization and application in clinic.