Objective: to explore the clinical effect of hand rotation of fetal head in treatment of occipitotransverse position and occipitoposterior position in difficult labour. Methods: from March 2018 to June 2020, 100 cases...Objective: to explore the clinical effect of hand rotation of fetal head in treatment of occipitotransverse position and occipitoposterior position in difficult labour. Methods: from March 2018 to June 2020, 100 cases of puerperae with occipitotransverse position and occipitoposterior position in difficult labour in our hospital were selected. The group was divided into two groups by random number table method. The control group was treated with conventional treatment (50 cases) and the observation group was treated with hand rotation of fetal head (50 cases). The clinical effects of the two groups were compared. Results: the vaginal delivery rate in the observation group was higher than that in the control group, the postpartum hemorrhage rate and labor injury rate were lower than those in the control group, and the second stage of labor was shorter than that in the control group (P<0.05). Conclusion: for occipitotransverse position and occipitoposterior position in difficult labour, hand rotation of fetal head is beneficial to the recovery of fetal head position, shorten delivery course, promote vaginal delivery, and reduce the adverse effects on mothers and babies. It can be popularized in clinic.展开更多
Sensory perception is often impaired by self-generated movements.This effect of sensory suppression has been commonly observed in voluntary hand-movement-induced tactile sensation during the period of motor preparatio...Sensory perception is often impaired by self-generated movements.This effect of sensory suppression has been commonly observed in voluntary hand-movement-induced tactile sensation during the period of motor preparation and execution.However,it remains unclear whether such suppression also occurs in the visual domain and if it can be induced by the preparation of other body movements.To extend our knowledge about sensory suppression,the present study investigated visual sensitivity during the preparation of head rotation.Participants wore virtual reality goggles and rotated their heads horizontally according to a visual cue presented on the goggles screens.Before the start of head rotation,a target of Landolt C was displayed at a peripheral location that was directed by the head-rotation cue or a symmetric location in the opposite visual field.After each head rotation,participants reported the target’s orientation,allowing the measurement of the discrimination threshold.Besides,the discrimination sensitivity was also measured in two head-still conditions with or without the presentation of a visual cue.The results showed that the discrimination performance was largely impaired by the preparation of head rotation.This effect of sensory attenuation increased with the approach of head-motion onset.However,the attenuation was not found on the discrimination of auditory stimuli during the preparation of head rotation,thus excluding the account of general dual-task requirement.In contrast to the previous findings of improved perception by preparation of saccade or reach,our findings indicate that sensory suppression rather than attention shift plays a major role during the preparation of head movement.展开更多
文摘Objective: to explore the clinical effect of hand rotation of fetal head in treatment of occipitotransverse position and occipitoposterior position in difficult labour. Methods: from March 2018 to June 2020, 100 cases of puerperae with occipitotransverse position and occipitoposterior position in difficult labour in our hospital were selected. The group was divided into two groups by random number table method. The control group was treated with conventional treatment (50 cases) and the observation group was treated with hand rotation of fetal head (50 cases). The clinical effects of the two groups were compared. Results: the vaginal delivery rate in the observation group was higher than that in the control group, the postpartum hemorrhage rate and labor injury rate were lower than those in the control group, and the second stage of labor was shorter than that in the control group (P<0.05). Conclusion: for occipitotransverse position and occipitoposterior position in difficult labour, hand rotation of fetal head is beneficial to the recovery of fetal head position, shorten delivery course, promote vaginal delivery, and reduce the adverse effects on mothers and babies. It can be popularized in clinic.
基金supported by the National Natural Science Foundation of China(31571112,31871104 and 31830037)the Scientific Foundation of Institute of Psychology,Chinese Academy of Sciences(Y9CX152005).
文摘Sensory perception is often impaired by self-generated movements.This effect of sensory suppression has been commonly observed in voluntary hand-movement-induced tactile sensation during the period of motor preparation and execution.However,it remains unclear whether such suppression also occurs in the visual domain and if it can be induced by the preparation of other body movements.To extend our knowledge about sensory suppression,the present study investigated visual sensitivity during the preparation of head rotation.Participants wore virtual reality goggles and rotated their heads horizontally according to a visual cue presented on the goggles screens.Before the start of head rotation,a target of Landolt C was displayed at a peripheral location that was directed by the head-rotation cue or a symmetric location in the opposite visual field.After each head rotation,participants reported the target’s orientation,allowing the measurement of the discrimination threshold.Besides,the discrimination sensitivity was also measured in two head-still conditions with or without the presentation of a visual cue.The results showed that the discrimination performance was largely impaired by the preparation of head rotation.This effect of sensory attenuation increased with the approach of head-motion onset.However,the attenuation was not found on the discrimination of auditory stimuli during the preparation of head rotation,thus excluding the account of general dual-task requirement.In contrast to the previous findings of improved perception by preparation of saccade or reach,our findings indicate that sensory suppression rather than attention shift plays a major role during the preparation of head movement.
