Coupon Accepted Successfully!


Rupture Uterus

Uterine rupture typically is classified as either complete (all layers of the uterine wall separated) or incomplete (uterine muscle separated but visceral peritoneum is intact). Incomplete rupture is also commonly referred to as uterine dehiscence.

The greatest risk factor for either complete or incomplete uterine rupture is prior cesarean delivery.
Following uterine rupture the most common electronic fetal monitoring finding tends to be sudden, severe heart rate decelerations that may evolve into late decelerations, bradycardia, and undetectable fetal heart action.

In some cases in which the fetal presenting part has entered the pelvis with labor, loss of station may be detected by pelvic examination. If the fetus is partly or totally extruded from the site of uterine rupture, abdominal palpation or vaginal examination may be helpful to identify the presenting part, which will have moved away from the pelvic inlet. A firm contracted uterus may at times be felt alongside the fetus.

With rupture and expulsion of the fetus into the peritoneal cavity, the chances for intact fetal survival are dismal, and reported mortality rates range from 50% to 75%.

Clinical Features of Ruptured Uterus

Impending Scar Rupture (Scar Dehiscence)

Ruptured Uterus

Unexplained tachycardia

Weak thready fast pulse



Fetal tachycardia

Persistent fetal bradycardia/IUFD

Uterine scar tenderness


Bleeding pv

Bleeding pv


Recession of presenting part

Change in fetal heart rate (tachycardia/loss of beat to beat variability / decelerations) is the earliest sign of impending scar dehiscence, followed by maternal tachycardia.

Test Your Skills Now!
Take a Quiz now
Reviewer Name