Lumsden M A, Baird D T
Acta Obstet Gynecol Scand. 1985;64(2):183-6. doi: 10.3109/00016348509154715.
Intra-uterine pressure recordings in normal and dysmenorrheic women during the menstrual period were analysed regarding amplitude, duration, frequency and peak area of contractions and the resting pressure. The activity of the myometrium showed large between subject variability and no significant difference was found, between the two groups in amplitude and duration of contractions or their frequency. However, there was a consistent difference in peak area at the onset of the menses (p less than 0.01) and there was also a significant decrease in peak area during the menses in the group with dysmenorrhea, with maximum uterine work being performed on the day when the pain was at its worst. The contribution of the pattern of contractility to the etiology of dysmenorrhea is discussed. Abnormal uterine activity as a cause of primary dysmenorrhea was first suggested in the 1930s and 1940s on the basis of intra-uterine pressure recordings (Moir, 1936; Woodbury et al., 1947). Since then, intra-uterine pressure has been measured in a number of studies using a micro-balloon (Lundström et al., 1976; Bygdeman et al., 1979). With the introduction of the highly sensitive micro-transducer catheter it has been possible to make accurate quantitative estimations (Akerlund et al., 1978; Ulmsten & Andersson, 1979) but, to our knowledge, no detailed analysis and quantification of intrauterine pressure recordings in primary dysmenorrhea has been reported. In this paper we publish the results of a study in which daily recordings obtained from women suffering from primary dysmenorrhea were compared with those from a group of women with very similar menstrual patterns but with minimal or no symptoms.
对正常女性和痛经女性经期的子宫内压力记录进行了分析，涉及收缩的幅度、持续时间、频率和峰值面积以及静息压力。子宫肌层的活动在个体之间显示出很大的变异性，两组在收缩的幅度、持续时间或频率方面未发现显著差异。然而，在月经开始时峰值面积存在一致的差异（p小于0.01），并且痛经组在月经期间峰值面积也有显著下降，最大子宫工作量出现在疼痛最严重的那天。讨论了收缩模式对痛经病因的影响。基于子宫内压力记录，20世纪30年代和40年代首次提出子宫活动异常是原发性痛经的原因（莫伊尔，1936；伍德伯里等人，1947）。从那时起，在许多研究中使用微型气球测量子宫内压力（伦德斯特伦等人，1976；比格德曼等人，1979）。随着高灵敏度微型换能器导管的引入，已经能够进行准确的定量估计（阿克伦德等人，1978；乌尔姆斯特恩和安德森，1979），但据我们所知，尚未有关于原发性痛经子宫内压力记录的详细分析和定量报道。在本文中，我们公布了一项研究的结果，该研究将原发性痛经女性的每日记录与一组月经模式非常相似但症状轻微或无症状的女性的记录进行了比较。
