ANTEPARTUM HEMORRHAGE Flashcards

(44 cards)

1
Q

What is the definition of antepartum haemorrhage (APH)?

A

APH is defined as bleeding from the genital tract after the 28th week of gestation until delivery.

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2
Q

Why is 28 weeks considered the landmark for APH in developing countries?

A

28 weeks is considered the landmark because it marks viability and the registration of stillbirths in developing countries.

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3
Q

List the primary causes of APH.

A

Causes include placenta praevia, abruptio placenta, local causes, vasa praevia, circumvallate placenta, and indeterminate haemorrhage.

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4
Q

What is placenta praevia?

A

Placenta praevia is when the placenta is wholly or partially located in the lower uterine segment.

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5
Q

How is placenta praevia classified?

A

Placenta praevia is classified into four types based on the extent of attachment to the internal os.

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6
Q

What are the differences between minor and major placenta praevia?

A

Types 1 & 2 are minor placenta praevia, and Types 3 & 4 are major placenta praevia.

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7
Q

What are the types of abnormal placentation?

A

Abnormal placentation includes placenta accreta, increta, and percreta.

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8
Q

List predisposing factors for placenta praevia.

A

Predisposing factors include advanced maternal age, increased parity, previous uterine surgery, and multiple pregnancies.

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9
Q

What are the classical symptoms of placenta praevia?

A

Symptoms include painless, bright red vaginal bleeding, recurrent bleeding, and torrential bleeding closer to term.

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10
Q

How is placenta praevia diagnosed?

A

Diagnosis involves ultrasound, MRI, high presenting part, and contraindicated vaginal examination.

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11
Q

What management strategies are used for placenta praevia?

A

Management includes conservative approaches like bed rest and surgery for major cases.

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12
Q

What are the complications of placenta praevia?

A

Complications include haemorrhage, anaemia, shock, and death.

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13
Q

Define abruptio placenta.

A

Abruptio placenta is the premature separation of a normally situated placenta before delivery.

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14
Q

What is Couvelaire uterus?

A

Couvelaire uterus is when bleeding occurs into the myometrium.

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15
Q

What are the primary causes of abruptio placenta?

A

The primary cause of abruptio placenta is unknown, but hypertension and trauma are significant contributors.

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16
Q

What are the risk factors for abruptio placenta?

A

Risk factors include advanced maternal age, parity, polyhydramnios, and rapid uterine decompression.

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17
Q

How is abruptio placenta diagnosed?

A

Diagnosis is based on painful uterine contractions with vaginal bleeding and absence of fetal heart rate.

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18
Q

What is the hallmark symptom of abruptio placenta?

A

The hallmark symptom is painful uterine contractions with vaginal bleeding in the third trimester.

19
Q

How is abruptio placenta managed?

A

Management includes conservative methods for mild cases and surgery for severe cases.

20
Q

What are the maternal complications of abruptio placenta?

A

Maternal complications include haemorrhage, shock, DIC, and maternal death.

21
Q

What are the fetal complications of abruptio placenta?

A

Fetal complications include hypoxia, anaemia, IUGR, and fetal death.

22
Q

Define vasa praevia.

A

Vasa praevia is bleeding from unprotected fetal vessels over the cervical opening.

23
Q

What is the incidence of vasa praevia?

A

Vasa praevia occurs in 1 in 5000 singleton deliveries.

24
Q

What diagnostic test is used for vasa praevia?

A

The APT test is used to diagnose vasa praevia.

25
What is circumvallate placenta?
Circumvallate placenta is when fetal membranes wrap twice over the fetal side of the placenta.
26
What complications can arise from circumvallate placenta?
Complications include placental abruption and thickening of the placental edge.
27
What is indeterminate haemorrhage?
Indeterminate haemorrhage occurs when the cause is unknown.
28
What local causes can lead to APH?
Local causes include cervical cancer, polyps, cervicitis, and condylomata acuminata.
29
What is friable condylomata acuminata?
Friable condylomata acuminata are fragile growths caused by HPV.
30
What are the degrees of placenta praevia?
Degrees of placenta praevia range from Type 1 (partial) to Type 4 (complete).
31
What are the risk factors for cervical cancer as a cause of APH?
Risk factors for cervical cancer include HPV infection and smoking.
32
How is gentle vaginal speculum examination important in APH?
Gentle vaginal speculum examination helps identify local causes of bleeding.
33
What are the fetal risks associated with APH?
Fetal risks include hypoxia, anaemia, IUGR, and death.
34
What are the maternal risks associated with APH?
Maternal risks include haemorrhage, shock, DIC, and renal failure.
35
What is the role of ultrasound in APH diagnosis?
Ultrasound is crucial for diagnosing placenta praevia and abruptio placenta.
36
When is MRI indicated for APH diagnosis?
MRI is indicated when ultrasound findings are inconclusive.
37
What surgical interventions are used for APH management?
Surgical interventions include cesarean delivery for severe cases.
38
Why is early involvement of haematology important in APH?
Early involvement of haematology is critical for managing coagulopathy in APH.
39
How is blood transfusion used in managing APH?
Blood transfusion restores maternal blood volume and oxygenation.
40
What is the role of corticosteroids in managing APH?
Corticosteroids enhance fetal lung maturity in preterm deliveries.
41
What is the significance of advanced maternal age in APH?
Advanced maternal age increases the risk of APH and complications.
42
How does smoking contribute to APH?
Smoking affects uteroplacental blood flow, increasing the risk of APH.
43
What is the impact of polyhydramnios on APH?
Polyhydramnios can lead to uterine overdistension and abruptio placenta.
44
What are the limitations of clinical assessment in abruptio placenta?
Clinical assessment in abruptio placenta may miss concealed haemorrhage.