Crowther C A, Neilson J P, Verkuyl D A, Bannerman C, Ashurst H M
Department of Obstetrics and Gynaecology, Harare Central Hospital, Zimbabwe.
Br J Obstet Gynaecol. 1989 Jul;96(7):850-3. doi: 10.1111/j.1471-0528.1989.tb03327.x.
Women attending a twin pregnancy antenatal clinic underwent cervical palpation to calculate a cervical score by subtracting dilatation from length. Those with a score of -2 or less at or before 34 weeks are at especially high risk of preterm labour. A total of 139 such women were randomly allocated either to receive bed-rest in hospital or to continue conventional outpatient management. No beneficial effect of bed-rest could be identified in prolonging twin pregnancy or improving fetal outcome.
在双胎妊娠产前诊所就诊的女性接受宫颈触诊，通过用宫颈长度减去扩张程度来计算宫颈评分。在34周及以前宫颈评分为-2分或更低的女性发生早产的风险特别高。共有139名此类女性被随机分配，要么住院卧床休息，要么继续常规门诊管理。未发现卧床休息在延长双胎妊娠或改善胎儿结局方面有有益效果。
