Placenta Previa - Causes, Symptoms and treatment
Placenta previa is an obstetric complication that classically presents as painless vaginal bleeding in the third trimester secondary to an abnormal placentation near or covering the internal cervical os. However, with the technologic advances in ultrasonography, the diagnosis of placenta previa is commonly made earlier in pregnancy. Historically, there have been three defined types of placenta previa: complete, partial, and marginal. More recently, these definitions have been consolidated into two definitions: complete and marginal previa. A complete previa is defined as complete coverage of the cervical os by the placenta. If the leading edge of the placenta is less than 2 cm from the internal os, but not fully covering, it is considered a marginal previa. Because of the inherent risk of hemorrhage, placenta previa may cause serious morbidity and mortality to both the fetus and the mother. What are the symptoms of placenta previa? Signs and symptoms of placenta previa vary, but the most common symptom is painless bleeding during the third trimester.
Other reasons to suspect placenta previa would be: Premature contractions. Baby is breech, or in transverse position. Uterus measures larger than it should according to gestational age. What causes placenta previa? The placenta grows wherever the embryo implants itself in the uterus.
If the embryo implants itself in the lower portion of the uterus, the placenta might grow over the cervix — causing placenta previa. Most cases of placenta previa are diagnosed during a second trimester ultrasound examination. If the placenta just barely reaches the cervix, expansion of the uterus may pull the placental attachment higher, away from the cervix, which will resolve the situation. If the placenta is across the cervix, however, it's unlikely to resolve with time. The later in pregnancy that placenta previa exists, the more likely it will be present at the time of delivery. Persistent types of placenta previa have been associated with: Scars in the lining of the uterus, such as from previous surgery. A large placenta, such as with a multiple pregnancy. Being 35 or older during pregnancy.
Having had babies. Treatment of placenta previa. Doctors will decide how to treat your placenta previa based on: the amount of bleeding. The month of your pregnancy. The baby’s health. The position of the placenta and the baby.
The amount of bleeding is a doctor’s main consideration when deciding how to treat the condition. Minimal to no bleeding. For cases of placenta previa with minimal or no bleeding, your doctor will likely suggest bed rest.
This means resting in bed as much as possible, and only standing and sitting when absolutely necessary. You’ll also be asked to avoid sex and likely exercise as well. If bleeding occurs during this time, you should seek medical care as soon as possible. Heavy bleeding. Cases of heavy bleeding may require hospital bed rest. Depending on the amount of blood lost, you may need blood transfusions. You may also need to take medicine to prevent premature labor. In the case of heavy bleeding, your doctor will advise a C-section be scheduled as soon as it is safe to deliver — preferably after 36 weeks.
If the C-section needs to be scheduled sooner, your baby may be given corticosteroid injections to speed up his or her lung growth. Uncontrollable bleeding. In the case of uncontrolled bleeding, an emergency cesarean delivery will have to be performed. Like and share this video. Don't forget to Subscribe my channel for health updates.
Good morning. This is Team B and today we are presenting the paper Tranexamic Acid for the Treatment of Heavy Menstrual Bleeding. According to the FIGO recommendations that came out…By: Learning in 10
Hi everyone, this is Yasuko and it's time for Massage Monday. Per viewer's request this week I'm going to show you acupressure points for irregular periods to help make…By: Yasuko Kawamura
Placenta previa is an obstetric complication that classically presents as painless vaginal bleeding in the third trimester secondary to an abnormal placentation near or covering the…By: Health Tips
Dr. Justin Marchegiani: Hey there! This is Dr. Justin Marchegiani and welcome to another awesome episode of Beyond Wellness Radio. Again, we have a great show in store for you. Before,…By: Just In Health
Hi, I'm Chris DeStephano a gynecologic surgeon at Mayo Clinic in Jacksonville, Florida. Many of my patients come to me because they're experiencing abnormal uterine bleeding…By: Mayo Clinic