Surgical causes of acute abdominal pain in pregnancy TOG 2019

Question 1

Incidence of acute abdominal in pregnancy

Answer 1

1/500-635

Question 2

Radiation in CXR

Answer 2

10mGy
Childhood cancer 0.002%

Question 3

Dose of radiation in abdominal CT

Answer 3

30-50mGR risk childhood cancer 0.1%, fatal adult cancers 0.3%

Question 4

If operation - risk of miscarriage/preterm labour

Answer 4

0.7% miscarriage
3.2% preterm labour

Question 5

How common is appendicitis in pregnancy?

Answer 5

1/800/1500

Question 6

USS sensitivity and specificity for appendicitis

Answer 6

Ultrasound sensitivity for diagnosis of appendicitis in pregnancy is 67-100% with specificity of 83-96%.

Question 7

CT sensitivity and specificity for appendicitis in pregnancy

Answer 7

86% with specificity of 97%

Question 8

MRI sensitivity and specificity for appendicitis in pregnancy

Answer 8

sensitivity of 91% and a specificity of 98%

Question 9

How common is biliary colic in pregnancy? Most common cause

Answer 9

1-6/1000 2nd most common cause acute abdomen
90% gallstone

Question 10

USS sensitivity for Dx gallstones

Answer 10

> 95%