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In the name of God. Hydrops Fetalis. Hydrops = Generalized subcutaneous edema in the fetus or neonate. Definition : Excess serous fluid in at least one space (ascites, pleural effusion, or pericardial effusion) + skin edema (> 5 mm thick) Excess fluid in two spaces without edema.
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Hydrops = Generalized subcutaneous edema in the fetus or neonate
Definition : • Excess serous fluid in at least one space (ascites, pleural effusion, or pericardial effusion) + skin edema (> 5 mm thick) • Excess fluid in two spaces without edema
Immune Hydrops Fetalis (10%) Hydrops Fetalis Non Immune Hydrops Fetalis (90%)
Pathogenesis • Anemia • Cardiac failure • Fetal Hypoxemia
Pathogenesis (cont). • Extra vascular protein leakage → increased capillary permeability → hypoalbuminemia → Accumulation of fluid in body cavities • Placental perfusion abnormalities
Etiology • Hematologic: Due to anemia (10% of cases) : • Isoimmune hemolytic disease (RH incompatibility). • Hemozygous alphathalassemia • Hemozygous G6PD d, • Feto maternal hemorrhage - twin - to twin transfusion • Bone marrow failure - bone marrow replacement - leukemia
In RH incompatibility : • Fetus is RH + / mother is RH – • Maternal exposure to foreign antigens → IgG antibodies fetal antigens → destruction of fetal RBCs → Hemolysis hydrops fetal anemia → reticulocytosis (Hb<7 g/dL)→ erythroblastosis. Against In severe form In moderate form In severe form
Cardiovascular: Due to heart failure (20% cases) • Rhythm disturbances • Major cardiac disease
Renal (5% of cases) Nephrosis, RVT, urinary obstruction
Infection (8% of cases) TORCH-Syphilis-Congenital Hepatitis, Parvovirus….
Pulmonary (5% of cases) Chylothorax, diaphragmatic hernia , intrathoracic mass
Maternal conditions (5% of cases) : Toxemia, diabetes, thyrotoxicosis
Gastrointestinal (5% of cases) : Meconium peritonitis …..
Chromosomal (5% of cases) : Turner syndrome, trisomy 13,18,21
Miscellaneous (10% of cases) : Cystic hygroma, wilms’ tumor – teratoma - Neuroblastom
Signs of hydrops : • Pericardial & pleural effusions • Ascites • Skin edema • Hepatosplenomegaly • Polyhydramnios • Placental thickening
Diagnosis : • Pregnant woman with : • Polyhydramnios, severe anemia, toxemia, isoimmune disease → ultrasonic examination → Fluid accumulation in the fetus or placenta of circulating maternal antibody → NIHF In the absence