GI and Liver Disease During Pregnancy: A Practical Approach

Kim L Isaacs, MD PhD; Millie D Long, MD MPH

Chapter 2: Nausea And Vomiting Of Pregnancy (continued)

Laurie-Anne C. Swaby, MD; Kim L. Isaacs, MD, PhD

Nausea and vomiting of pregnancy (NVP) is common and can affect up to 50% to 90% of pregnancies with an increased likelihood of recurrence in subsequent pregnancies. Though traditionally termed morning sickness, most women experience NVP throughout the day with only 2% exhibiting symptoms isolated to the morning.1 Symptoms are usually mild and limited to the first trimester with resolution by 20 weeks gestational age; however, severe refractory symptoms or hyperemesis gravidarum (HG) can occur in up to 2% of pregnancies and may cause significant morbidity to both mother and fetus. In…