肛门括约肌的损伤会引起产后妇女会阴疼痛、性交困难(性交疼痛)以及肛门失禁等症状,对妇女产后的生理及心理造成很大影响.肛门括约肌损伤的预防、早期诊断和修复对产后妇女生活质量的提高十分有利.因此,一项可以准确且容易被患者接受的评估肛门括约肌的检查方法显得十分必要.经会阴探查肛门括约肌作为一项十分经济、便捷、有效的检查方法,已经开始应用于临床肛门括约肌损伤的诊断.%Obstetric anal sphincter injuries (OASIS) are associated with significant maternal morbidity including perineal pain, dyspareunia (painful sexual intercourse) and anal incontinence, which can lead to psychological and physical sequelae. The prevention, early diagnosis and repair of scathing anal sphincter are very beneficial to postpartum women which they can improve their life quality. So, one examination with accurancy and acceptance is very necessary for patient to assess anal sphincter. On clinic, the transperineal 3D-US imaging has become a portable, effective and relatively inexpensive modality to evaluate the anatomic integrity of the muscles of the anal sphincter.
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