Answer:

Gestational sac abruption, also known as subchorionic hematoma, occurs when a portion of the placenta detaches from the uterine wall, forming a blood clot. This can disrupt the supply of oxygen and nutrients to the fetus.

Placental abruption during the first trimester (11-13 weeks and 6 days) often raises concerns, as the fetus is in an early developmental stage. This can increase the risk of miscarriage or hemorrhage. However, if the detached area is under 30% and without abnormal symptoms, the chance of a successful pregnancy is high. The hematoma typically reabsorbs naturally over time. An abruption of 50% or more is severe, carrying a high risk of miscarriage or affecting fetal development.

It is important to monitor for accompanying symptoms such as persistent dull abdominal pain or vaginal bleeding. Dark brown or black vaginal bleeding typically indicates that the bleeding has stopped. However, if bright red blood appears, seek immediate medical attention, as this signals active bleeding.

Doctor Long performs an ultrasound for a pregnant woman. *Illustration: Tam Anh General Clinic District 7*

Many mistakenly believe that gestational sac abruption necessitates complete bed rest. However, for a 10-20% abruption without vaginal bleeding, absolute rest is not required. Prolonged immobility can increase the risk of venous blood clots. Instead, gentle movement around the house is recommended to promote blood circulation.

Avoid strenuous activities, falls, and strong impacts on the uterus. A balance of rest and gentle activity aids recovery, maintains mental well-being, and reduces negative effects on pregnancy hormones, helping the gestational sac attach more firmly to the uterine wall.

During this period, nutrition is crucial for supporting the pregnancy. Prioritize easily digestible, fiber-rich foods to prevent constipation, as straining during bowel movements can exert unfavorable pressure on the uterus. Adhere to scheduled prenatal appointments and regular ultrasounds to monitor the abruption's progression. Seek immediate hospital care if urgent signs appear: heavy vaginal bleeding, severe abdominal pain, or continuous uterine contractions.

Doctor Nguyen Hoang Long

Fetal Medicine Unit

Tam Anh General Clinic District 7