Aspirin (acetylsalicylic acid) is a medication commonly used to reduce pain, fever, and inflammation. In this trial, it is being studied for its potential benefits in pregnant women with chronic high blood pressure. The medication works by preventing the formation of certain substances in the body that cause inflammation and blood clotting. When used during pregnancy, it may help prevent serious complications by improving blood flow to the placenta and reducing the risk of blood clots.

Chronic Hypertension in Pregnancy – A condition where high blood pressure exists before pregnancy or develops before 20 weeks of gestation. The elevated blood pressure continues throughout pregnancy, putting additional stress on the cardiovascular system.

Pre-eclampsia – A pregnancy complication characterized by high blood pressure and signs of damage to organ systems, typically occurring after 20 weeks of pregnancy. It involves reduced blood flow to the placenta and can cause swelling, protein in urine, and other symptoms.

Fetal Growth Restriction – A condition where an unborn baby is smaller than expected for its gestational age due to not growing at a normal rate inside the womb. The baby’s estimated weight is below what’s expected for its gestational age, often falling below the 10th percentile.

Placental Abruption – A serious condition that occurs when the placenta partially or completely separates from the inner wall of the uterus before delivery. This separation can reduce or block the baby’s supply of oxygen and nutrients.

Preterm Delivery – The birth of a baby before 37 weeks of pregnancy have been completed. The earlier the delivery occurs in pregnancy, the more challenging it can be for the baby.