maternal mortality Flashcards
maternal mortality
defined as the death of a women while pregnant or within 42 days of TOP, irrespective of the duration or site of the pregnancy, from any cause related to or aggravated by the pregnancy or its management but not from accidental or incidental causes.
MMR- maternal mortality ratio
perinatal deaths
o Stillbirth – infant born after 28th week of pregnancy which did not breathe and show signs of life Early neonatal death post neonatal infant death child death
causes of maternal deaths
haemorrhage hypertension indirect malaria/HIV Other direct unsafe abortion sepsis embolism
gestational trophoblastic disease
hydatidiform moles
common symptoms: vaginal bleeding, enlarged uterus, pelvic pain, hyperemesis
choriocarcinoma
-malignant, trophoblastic cancer, usually of the placenta. It is characterized by “early haematogenous spread” to the lungs. (SOB, pleuritic pain, haemoptysis)
pathophysiology
o Each parent’s gametes carry a set number of genes of which some are methylated (inactivated).
♣ Mother’s changes promote early baby growth
♣ Father’s changes promote early placenta growth via trophoblast proliferation
o A complete mole is caused by a single sperm (90%) combining with an egg which has lost its DNA (the sperm then reduplicates forming a “complete” 46 chromosome set).
o A partial mole occurs when a haploid egg is fertilized by two sperm or by one sperm which reduplicates itself yielding the genotypes of 69,XXY (triploid) or 92,XXXY (tetraploid).
Complete hydatidiform moles account for 50% of all cases of choriocarcinoma
♣ Molar pregnancy trophoblast cells proliferate because they have too many of father’s methylated genes massive overgrowth of placenta
management:
suction curettage
anti-D prophylaxis is required following evacuation of a PHM
indications for chemotherapy
♣ Plateaued or rising hCG levels after evacuation.
♣ Histological evidence of choriocarcinoma.
Evidence of metastases
♣ Pulmonary, vulval, or vaginal metastases unless hCG concentrations are falling.
Heavy vaginal bleeding
Serum hCG greater than 20,000 IU/L more than four weeks after evacuation
advise not to conceive.