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Definition APH Bleeding from the genital tract in pregnancy between 20 to 24 week’s gestation and the onset of labour. It affects 4% of all pregnancies. It is associated with increased risks of fetal and maternal morbidity and mortality.
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Causes Placental: Abruptio placenta. Placenta previa. Non-placental: Vasa previa. Bloody show. Trauma. Uterine rupture. Cervicitis. Carcinoma. Idiopathic.
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ABRUPTIO PLACENTA
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Introduction Definition: It is the separation of the placenta from its site of implantation before delivery of the fetus. Incidence: 1 in 200 deliveries.
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Types of Placental Abruption Revealed placental abruption: causes vaginal bleeding. Concealed placental abruption: internal bleeding
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Risk Factors Increased age & parity. Hypertensive disorders. Preterm ruptured membranes. Multiple gestation. Polyhydramnios. Smoking. Cocaine use. Uterine fibroid. Trauma
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Clinical Presentation Vaginal bleeding. Uterine tenderness or back pain. Fetal distress. High frequency contractions. Uterine hyper tonus. IUFD. Nausea and vomiting
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Classification Asymptomatic, External vaginal bleeding Uterine tetany and tenderness may be present No signs of maternal shock No evidence of fetal distress Grade 0Grade 1
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External vaginal bleeding may or may not be present Uterine tender and tentany No signs of maternal shock Signs of fetal distress present External bleeding may or may not be present Marked uterine tetany Maternal shock Fetal death or distress Coagulopathy in 30% of the cases Grade 2.Grade 3. Cont.
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Diagnosis Physical examination to determine the uterine rigidity or tenderness. Abdominal Ultrasound CBC Fetal Monitoring Pelvic Exam Vaginal Ultrasound
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Management Fetal Monitoring for the fetal heart rate Blood Transfusion if its need Administer Rh immune globulin if the patient is Rh- Vaginal Delivery Blood plasma replacement to maintain fibrinogen level Cesarean Delivery is often necessary for fetal and maternal stabilization
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Prevention Do not drink any alcohol such as beer and wine Do not smoke or use recreational drugs during pregnancy Get early and regular prenatal care Early recognizing and managing conditions in the mother such as diabetes and high blood pressure also decrease the risk of placental abruption
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Complications Hypovolemic shock DIC (Disseminated intravascular coagulation) Renal failure. Death. Uterine rupture Hypoxia. Brain Damage IUGR. stillbirth Anemia MaternalFetal
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PLACENTA PREVIA
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Introduction Definition: The presence of placental tissue overlying or proximate to the internal cervical os after viability. Incidence: Complicates approximately 1 in 300 pregnancies.
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Predisposing factors Multiparty Increased maternal age Previous placenta previa, recurrence rate 4-8% Multiple gestation Previous cesarean section Uterine anomalies Maternal smoking
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Placenta praevia Grades: Grade 1: the placental edge is in the lower uterine segment but does not reach the internal os (low implantation). Grade 2: the placental edge reaches the internal os but does not cover it. Grade 3: the placenta covers the internal os when it is close and is asymmetrically situated (partial). Grade 4: the placenta covers the internal os and is centrally situated (complete)
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Clinical presentation Bright red vaginal bleeding without pain Premature contractions Baby is breech in transverse position
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Diagnosis History taking Abdominal examination Leopold's Maneuvers Fetal Heart Monitoring Vaginal Examination is avoiding
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Management Admit to hospital Corticosteroids Blood volume replacement to maintain blood pressure Avoiding intercourse
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Complications of Placenta praevia APH PPH Increase risk of puerperal sepsis Malpresentation; breech, oblique, transverse. IUGR Premature delivery Death Maternal Fetal
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VASA PREVIA
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Introduction Is a complication of pregnancy in which babies blood vessels cross or run near the internal opening of the uterus These vessels are at risk of rupture when the supporting membranes rupture. The term of Vasa previa is derived from the Latin word Vasa means Vessel Pre means Before Via means Way The incidence is 1 in 2000 – 3000 deliveries.
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Associated Conditions Low-lying placenta. Bilobed placenta. Multi-lobed placenta. Succenturiate-lobed placenta. Multiple pregnancies. IVF.
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Clinical Presentations Painless vaginal bleeding Rupture of membranes Fetal bradycardia
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Diagnosis The diagnosis of vasa previa is considered if vaginal bleeding occurs upon rupture of the membranes. Fetal hemoglobin test Concomitant fetal heart rate abnormalities. Ultrasound
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Antenatal Management Consider hospitalization in the third trimester to provide proximity to facilities for emergency cesarean delivery. Fetal surveillance to detect compression of vessels. Antenatal corticosteroids to promote lung maturity.
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Antepartum Management Immediate C/S. Avoid amniotomy as the risk of fetal mortality is 60-70% with rupture of the membranes.
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UTERINE RUPTURE
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Reported in 0.03-0.08% of all delivering women, but 0.3-1.7% among women with a history of a uterine scar (from a C/S for example) 13% of all uterine ruptures occur outside the hospital The most common maternal morbidity is hemorrhage Fetal morbidity is more common with extrusion
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Cont. Classic presentation includes vaginal bleeding, pain, cessation of contractions, absence/ deterioration of fetal heart rate, loss of station of the fetal head from the birth canal, easily palpable fetal parts, and profound maternal tachycardia and hypotension. Patients with a prior uterine scar should be advised to come to the hospital for evaluation of new onset contractions, abdominal pain, or vaginal bleeding.
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Risk Factors The most common risk factor is a previous C/S or uterine surgery. Placenta previa Plastenta accreta. Trauma.
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Presentation Sudden severe fetal heart decelerations. Abdominal pain ( <10%). Excessive vaginal bleeding Rapid heart rate of mother Lowe blood pressure Cessation of uterine contractions.
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Prognosis Fetal death 50-75%. Maternal mortality is high if not diagnosed & managed promptly. Maternal morbidity: hemorrhage & infection.
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Management stabilization of maternal hemodynamics. Blood transfusion Prompt C/S with either repair of the uterine defect or hysterectomy. Antibiotics.
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Complications CPD. Abnormal presentation. Unusual fetal enlargement (hydrocephalus). Difficult forceps. Breech extraction. Internal podalic version. Labor complications:Delivery complications:
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Reference https://en.wikipedia.org/wiki/Antepartum_haemorrhage https://en.wikipedia.org/wiki/Antepartum_haemorrhage https://www.glowm.com/pdf/AIP%20Chap5%20APH.pdf https://www.glowm.com/pdf/AIP%20Chap5%20APH.pdf
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