Placenta praevia: Difference between revisions

Revision as of 10:57, 15 February 2025

A condition in pregnancy where the placenta partially or wholly blocks the cervix.

Placenta Praevia

Diagram showing placenta praevia

Placenta praevia is a condition in pregnancy where the placenta is abnormally positioned in the uterus, covering the cervix either partially or completely. This can lead to complications during childbirth, as the placenta may obstruct the passage of the baby through the birth canal.

Types

Placenta praevia is classified into several types based on the degree to which the placenta covers the cervix:

Complete placenta praevia: The placenta completely covers the cervical opening.
Partial placenta praevia: The placenta partially covers the cervix.
Marginal placenta praevia: The placenta is at the edge of the cervix but does not cover it.
Low-lying placenta: The placenta is positioned low in the uterus but does not reach the cervix.

Symptoms

The primary symptom of placenta praevia is painless vaginal bleeding during the second or third trimester of pregnancy. The bleeding can vary in severity and may occur suddenly.

Diagnosis

Placenta praevia is typically diagnosed through ultrasound imaging. A transvaginal ultrasound may be used for a more accurate assessment of the placenta's position.

Risk Factors

Several factors can increase the risk of developing placenta praevia, including:

Previous cesarean section
Multiple pregnancies
Advanced maternal age
Smoking
Previous placenta praevia

Management

Management of placenta praevia depends on the severity of the condition and the stage of pregnancy. Options include:

Observation: In cases where the bleeding is minimal and the pregnancy is not yet full-term, careful monitoring may be sufficient.
Hospitalization: For more severe cases, hospitalization may be necessary to manage bleeding and monitor the health of the mother and baby.
Cesarean delivery: If the placenta completely covers the cervix, a cesarean section is usually required to safely deliver the baby.

Complications

Placenta praevia can lead to several complications, including:

Preterm birth
Hemorrhage
Placental abruption
Increased risk of postpartum hemorrhage

Related pages

@@ Line 1: / Line 1: @@
-'''Placenta praevia''' is a condition in pregnancy where the [[placenta]] attaches itself in the lower part of the [[uterus]] near to or covering the [[cervix]]. It is a leading cause of [[Antepartum haemorrhage]] (bleeding in late pregnancy).
+{{Short description|A condition in pregnancy where the placenta partially or wholly blocks the cervix.}}
-== Causes ==
+== Placenta Praevia ==
-The exact cause of placenta praevia is unknown, but it is more common in women who have had a previous [[Caesarean section]], a higher number of pregnancies, are older, and in those who smoke or have had a surgical procedure on their uterus such as a [[Dilation and curettage]].
+[[File:Placta_prv.jpg|thumb|right|Diagram showing placenta praevia]]
+'''Placenta praevia''' is a condition in [[pregnancy]] where the [[placenta]] is abnormally positioned in the [[uterus]], covering the [[cervix]] either partially or completely. This can lead to complications during [[childbirth]], as the placenta may obstruct the passage of the baby through the birth canal.
-== Symptoms ==
+=== Types ===
-The main symptom of placenta praevia is painless bleeding from the vagina during the second half of pregnancy. Other symptoms may include [[premature birth]] and [[baby in breech position]].
+Placenta praevia is classified into several types based on the degree to which the placenta covers the cervix:
-== Diagnosis ==
+* '''Complete placenta praevia''': The placenta completely covers the cervical opening.
-Placenta praevia is usually diagnosed during a routine [[Ultrasound]] scan in the second trimester of pregnancy. If placenta praevia is suspected, a follow-up scan is usually performed at 32 weeks.
+* '''Partial placenta praevia''': The placenta partially covers the cervix.
+* '''Marginal placenta praevia''': The placenta is at the edge of the cervix but does not cover it.
+* '''Low-lying placenta''': The placenta is positioned low in the uterus but does not reach the cervix.
-== Treatment ==
+=== Symptoms ===
-The treatment for placenta praevia depends on the extent of the placenta covering the cervix and the gestational age of the fetus. If the placenta is completely covering the cervix, a [[Caesarean section]] is usually performed. If the placenta is not completely covering the cervix, a vaginal delivery may be possible.
+The primary symptom of placenta praevia is painless [[vaginal bleeding]] during the second or third trimester of pregnancy. The bleeding can vary in severity and may occur suddenly.
-== Complications ==
+=== Diagnosis ===
-Complications of placenta praevia can include [[premature birth]], [[baby in breech position]], [[Antepartum haemorrhage]], and [[postpartum haemorrhage]].
+Placenta praevia is typically diagnosed through [[ultrasound]] imaging. A [[transvaginal ultrasound]] may be used for a more accurate assessment of the placenta's position.
-== See also ==
+=== Risk Factors ===
-* [[Placenta accreta]]
+Several factors can increase the risk of developing placenta praevia, including:
-* [[Placenta increta]]
-* [[Placenta percreta]]
-== References ==
+* Previous [[cesarean section]]
-<references />
+* Multiple pregnancies
+* Advanced maternal age
+* Smoking
+* Previous placenta praevia
+=== Management ===
+Management of placenta praevia depends on the severity of the condition and the stage of pregnancy. Options include:
+* '''Observation''': In cases where the bleeding is minimal and the pregnancy is not yet full-term, careful monitoring may be sufficient.
+* '''Hospitalization''': For more severe cases, hospitalization may be necessary to manage bleeding and monitor the health of the mother and baby.
+* '''Cesarean delivery''': If the placenta completely covers the cervix, a cesarean section is usually required to safely deliver the baby.
+=== Complications ===
+Placenta praevia can lead to several complications, including:
+* Preterm birth
+* [[Hemorrhage]]
+* Placental abruption
+* Increased risk of [[postpartum hemorrhage]]
+== Related pages ==
+* [[Pregnancy]]
+* [[Placenta]]
+* [[Cesarean section]]
+* [[Vaginal bleeding]]
 [[Category:Obstetrics]]
-[[Category:Pathology]]
+[[Category:Pregnancy complications]]
-[[Category:Gynaecology]]
-[[Category:Pregnancy]]
-{{stub}}