Antepartum Hge Flashcards
(22 cards)
RISK FACTORS OF PLACENTA PREVIA
A. Personal factors:
Age - Parity - Previous Cesarean section
B. Obstetric factors:
- Previous placenta previa
- Anatomical lesions of the uterus e.g. septum, fibroid
- Large placenta e.g. Multifetal pregnancy, bipartite.
COMPLICATIONS OF PLACENTA PREVIA. Maternal
- Hemorrhage - - Anemia or Hypovolemic shock.
- Amniotic fluid embolism - - - anaphylactic shock
- Placenta accrete spectrum (PAS)
- Postpartum hemorrhage
- Puerperal sepsis and 2ry postpartum hemorrhage
- Recurrence
COMPLICATIONS OF PLACENTA PREVIA
B. Fetal and neonatal
- Preterm labor and PPROM - Fetal distress - IUGR - IUFD - anomalies
- Vasa previa and velamentous umbilical cord
- Neonate: anemia & asphyxia
CLASSIFICATION OF PLACENTA PREVIA. American Institute of US in Medicin (AIUM)
A. American Institute of US in Medicin (AIUM)
1) Normal placental: edge > 20 mm from Internal Os
2) Low lying placenta: edge < 20 mm from the Internal Os
3) Placenta previa: covering the Internal Os
B. Classic classification of Placenta previa
B. Classic classification:
1) Minor placenta previa
* Low Lying Placenta: Edge of the placenta encroaches on the LUS, but does not reach the margin of the I0
* Marginal: Edge of the placenta reaches but does not cover the margin of the IO.
2) Major placenta previa
* Partial : placenta partially covers the io
* Total: placenta completely covers the io
PRECAUTIONS IN ANTENATAL CARE FOR PLACENTA PREVIA
- Regular Monitoring: Frequent ultrasounds are necessary to track the position of the placenta.
- Activity Restrictions: Bed rest or activity limitations - Avoiding strenuous activities
- Hospitalization: If bleeding occurs or if the condition is severe
- Delivery Planning : CS is often planned around 36-37 weeks
- Avoiding Vaginal Examinations
- Maternal and Fetal Monitoring: AFWB - Maternal blood pressure and hemoglobin levels are monitored to detect anemia or other complications
COMPLICATIONS OF PLACENTAL ABRUPTION
A.Maternal
1) Hemorrhage → Anemia or Hypovolemic shock.
2) Amniotic fluid embolism→ anaphylactic shock
3) Couvelaire uterus (Uteroplacental Apoplexy)
4) Acute RF
5) Sheehan’s syndrome: due to sudden acute blood loss
6) Consumptive coagulopathy (DIC)
7) Postpartum hemorrhage
8) Puerperal sepsis and 2nd postpartum hemorrhage
9) Recurrence
B. Fetal and neonatal:
Preterm labor and PPROM - Fetal distress - IUGR - IUFD
Neonate: anemia & asphyxia
INVESTIGATIONS IN PLACENTAL ABRUPTION
Ultrasound examination → Placental localization (most important).
Laboratory:
CBC - Blood Grouping, Rh type a
Coagulation profile: Fibrinogen level (most important) and FDPs
KFT - LVF → RF and HELLP syndrome.
Urine analysis: To detect proteinuria suggestive of preeclampsia.
AFWB
TYPES OF PLACENTAL ABRUPTION
1) Revealed hge
2) Concealed hge
3) Mixed type (MC)
RISK FACTORS OF PLACENTAL ABRUPTION
A. Personal factors: Age -Parity - Smoking - cocaine
B. Obstetric factors: Previous abruption - Weak implantation on septum, fibroid
-PROM & chorioamnionitis.
C. Medical disorders: Hypertension M/C - thrombophilias - Hypothyroidism
- Folic acid deficiency
D. Traumatic abruption:External trauma - Obstetric procedures - Traction on the placenta
TTT OF PLACENTAL ABRUPTION
- Follow-up of the maternal condition by CBC and examine vital data
- Follow-up of Fetal condition by AFWB.
- Supportive measures were taken, and anti-D was given to Rh-ve women.
- Terminate pregnancy at 34th week by VD unless there is an indication for CS
ETIOLOGY OF PLACENTA ACCRETA SPECTRUM
A .Defective decidualization:
1. LUS Placenta previa
2. Previous uterine surgery: mainly CS - Other uterine surgeries (e.g. myomectomy, D&C)
3. Anatomical uterine injuries e.g. CME (e.g. septa), leiomyoma, Asherman’s $
B. Maternal age > 35 years - IVF
CLASSIFICATION OF PLACENTA ACCRETA SPECTRUM
- FIGO grade 1 Placenta accreta (attached directly to the superficial myometrium)
- FIGO grade 2 Placenta increta (invading into the myometrium)
- FIGO grade 3 Placenta Percreta (perforating, the serosa)
MANAGEMENT OF PLACENTA ACCRETA SPECTRUM
Investigations:
US - Color Doppler - 3D power Doppler - MRI
TTT: CS hysterectomy OR Conservative management: either
Placenta left in situ parenteral antibiotics
Placental resection and trimming the edges
ETIOLOGY OF VASA PREVIA
1) Velamentous insertion of cord
2) Bipartite or multipartite placenta
3) Placenta Succenturiat
MANAGEMENT OF VASA PREVIA
After ROM: emergency CS
Before ROM: Hospitalization-Steroid administration-CS once mature.
D.D. OF ANTEPARTUM HEMORRHAGE
- Placenta previa
- placenta abruption
- Genital trauma
- General causes e.g LF, HTN
- Vasa Previa
Bright red painless mild bleeding - at 24 weeks - excessive bleeding with coitus
PLACENTA PREVIA
sudden severe progressive pain - absent bleeding - blood pressure > 160/100 - FL > the period -
Difficulty feeling fetal parts
PE COMPLICATED WITH PLACENTAL ABRUPTION CONCEALED TYPE
- sudden severe progressive pain - absent bleeding - blood pressure > 160/100 - FL > the period -Difficulty feeling fetal parts
PE COMPLICATED WITH PLACENTAL ABRUPTION CONCEALED TYPE
Mild pain - mild dark brown bleeding - blood pressure > 160/100 - FL < the period - Could feel fetal parts
PE COMPLICATED WITH PLACENTAL ABRUPTION REVEALED TYPE
mild bleeding - 24th week - Sudden gush of fluid - fetal bradycardia
VASA PREVIA