Biswas A, Leong W P, Ratnam S S, Viegas O A
Department of Obstetrics and Gynaecology, National University Hospital, National University of Singapore, Singapore.
Contraception. 1996 Aug;54(2):91-5. doi: 10.1016/0010-7824(96)00140-0.
The objective of the present study was to analyze the patterns of menstrual bleeding in Singaporean women using Norplant-2 contraceptive implants over a five-year period. Of the 100 women recruited for the study, 62 were still using the implant at the end of five years. Only 9 women discontinued for menstrual reasons and they did so within the first 21 months of implant use. Although a normal menstrual bleeding pattern was uncommon during the first three months of use, 69.4% had normal menstruation at the end of five years. Irregular bleeding was the most common form of menstrual abnormality throughout the study period. Infrequent periods and amenorrhoea were distinctly uncommon, especially after the first two years of use. The pattern of bleeding with Norplant-2 was not significantly different from that previously observed with Norplant.
本研究的目的是分析新加坡女性使用诺普兰2型避孕植入剂五年期间的月经出血模式。在招募参加该研究的100名女性中，五年结束时仍有62人在使用该植入剂。只有9名女性因月经原因停用，且她们是在植入使用的前21个月内停用的。虽然在使用的前三个月内正常月经出血模式不常见，但五年结束时69.4%的女性月经正常。在整个研究期间，不规则出血是月经异常最常见的形式。月经稀发和闭经明显不常见，尤其是在使用的头两年之后。诺普兰2型的出血模式与之前观察到的诺普兰的出血模式没有显著差异。
