GAIA Level 2 Second Trimester Spontaneous Abortion

**Semantic type:** Classification

**Definition:** GAIA Level 2 Second Trimester Spontaneous Abortion is defined by three criteria: first, it does not qualify as a Level 1 Second Trimester Spontaneous Abortion; second, gestational age is within the pre-defined range for the selected abortion definition as assessed by maternal and/or fetal parameters (Level 3) (Brighton Preterm Birth Gestational Age algorithm); third, one of the following three requirements must be met: a) No visible heartbeat on ultrasound; b) Visible expulsion of pregnancy tissues/products of conception on examination of the cervix; c) Products of conception found on histopathological evaluation of uterine contents.

**Synonyms:** - Global Alignment of Immunization safety Assessment in pregnancy Level 2 Second Trimester Spontaneous Abortion - Level 2 Second Trimester Spontaneous Abortion