50 The labour progression study (LaPS): duration of labour following zhangs’s guideline and the who partograph – A cluster randomised trial

Abstract

Introduction and aim: Traditionally, the progress of labour is measured by cervical dilatation. However, the expected progression varies between countries and there is no consensus regarding which guideline is best suited for clinical use. The applicability of stages, phases and time limits in labour is challenging, mainly because of variations in defining the onset of labour and transition of phases and stages. One concern is that women may undergo unnecessary interventions because slow progress of labour is poorly defined.