Early birth and miscarriage

Question 1

Labour definition (4)

Answer 1

Uterine contractility
Cervical effacement
Dilatation of cervix
Membrane rupture

Question 2

Causes of preterm labor (6)

Answer 2

Infection (activate decidua -> increase PG -> contraction)
Overdistension (polyhydramnion)
Vascular (intrauterine bleeding)
Surgical procedures (amniocentesis) 
Cervical incompetence
Idiopathic

Question 3

Risk factors of preterm labor/PPROM

Answer 3

[Non-modifiable]
Previous preterm
Uterine abnormality
Cervical abnormality (damage,fibroid)
APH, illness (sepsis), invasive procedure
Nulliparous/grandmultipara
Poor economic

[Modifiable]
Smoking
Drugs (cocaine)
BMI < 20
Poor spacing