VITAL STATISTICS AIM : To reduce maternal, fetal and neonatal deaths related to pregnancy and labour...
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Transcript of VITAL STATISTICS AIM : To reduce maternal, fetal and neonatal deaths related to pregnancy and labour...
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VITAL STATISTICSAIM:
To reduce maternal, fetal and neonatal deaths related to pregnancy and labour by evaluating the data and taking measures to prevent the causes.
DEFINITIONS:a) Birth: The complete expulsion or extraction from the mother of the fetus irrespective whether the umbilical cord has been cut or the placenta is attached.
Fetus should be more than 500grams or 20 weeks of gestation.
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Cont… Definitions..
b) Crude Birth Rate: The number of live births per 1,000 population. c) Fertility Rate: Number of live births per 1,000 female population (aged 15-44).d) Live Birth: Any infant who shows any signs of life at birth (i.e. H.b. breathing movement, etc.)e) Still Birth: No signs of life present at or after birth.
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Cont…Definitions…
f) Neonatal Death: Early NND death at a live born infant during
the first 7 days. Late NND.
g) Direct Maternal Deaths:Deaths of the mother resulting from
obstetrical complications of pregnancy, labour or puerperium.
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Cont… Definitions.
h) Indirect Maternal Death:
An obstetrical death not directly related to obstetrical causes, but resulting from previously existing disease or diseases that developed during pregnancy, labour or puerperium but was aggravated by the physiological adoption of pregnancy, i.e. heart disease (valvular).
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Cont…Definitions.
i) Still Birth Rate: Number of stillborn infants per 1,000 infant born including live or still births.
j) Perinatal Mortality Rate: Number of still births plus neonatal deaths per 1,000 total births.
k) Low Birth Weight: Less than 2,500 gramsl) Term Infant: Any infant born between 37
(completed menstrual week) to 42 weeks (260-294 days).
m) Premature or Preterm Infant: Any infant born between 37 completed menstrual weeks.
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Cont…Definitions.
n) Post-term: Infant born after 42 completed menstrual week.
o) Abortus: A fetus or embryo removed or expelled from the uterus during the first 20 weeks of gestation or weigh less than 500 grams or measures less than 25 cm. in length.
p) Maternal Mortality Ratio (Rate): Number of maternal deaths that results from the reproductive process per 100,000 live births.
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POST-TERM PREGNANCYDEFINITION
INCIDENCE
ETIOLOGY
CONFIRMATION
COMPLICATION
MANAGEMENT
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POST-TERM PREGNANCYDEFINITION:
Post-term: 42 completed weeks of gestation294 days from LMP280 days from date of conception
Post-mature: Specific clinical syndrome, divided into 3 stages
stage 1: clear amniotic fluidstage 2: skin stained greenstage 3: skin discoloration yellow-green
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Features include:
Wrinkled, patchy peeling skin, long
thin body, open eyed, unusually alert,
old and worried looking, long nails and
skin wrinkled in soles and palms.
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INCIDENCE:
Overall is 10%
Completed 41 27 %
Completed 42 14 %
Completed 43 2 – 7 %
Incidence is Why?
Because of accurate dating (U/S).
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Incidence vary according to:
1. Population studied
2. Rate of preterm labour
3. Rate of induction
4. Rate of elective caesarean section
5. Rate of ultrasound
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ETIOLOGY:1. Error in determining the time of ovulation
and conception according to LMP time (most frequent).
2. Failure to recall accurate LMP and variable length of proliferative phase.
3. When PT actually exist cause is usually unknown.
4. Rarely it is associated with fetal conditions e.g. Placental sulfatase deficiency, anencephaly and fetal adrenal hyperplasia.
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CONFIRMATION:
Accurate dating is essential to avoid unnecessary and perhaps harmful intervention.
Establishing gestational age in 1st antenatal visit (early).
LMP: certain regular normal no pills in the last 3 months
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Other clinical data should be consistent with EDD:
1. quickening at 16-20 weeks
2. fetal heart by fetal stethoscope by
18-20 weeks
3. size of uterus consistent with date in
first trimester
4. at 20 weeks fundal height should be
about 20 cm. (usually corresponds
to umbilicus)
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Role of Ultrasound
Using Ultrasound early.
CRL in first trimester BPD, FL in second trimester
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COMPLICATIONS:
1. Perinatal mortality and morbidity
risk of perinatal death
Antepartum
Intrapartum
Postpartum
Anomalies and asphyxia,
Admission to NNU, pneumonia, intrauterine
infection, seizure, macrosomia, shoulder dystocia
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RISK FACTORS FOR ADVERSE OUTCOME
Hypertension
Pre-eclampsia
Diabetes
Abruptio placenta
IUGR
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MANAGEMENT STRATEGIES1. Fetal surveillance
kick chart BPP CTG Stress test
2. Induction of labour ARM oxytocin Cervix ripening ±
PGE2 gel or pessary
Foley catheter (mechanical)
Sweeing
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COMPARISON BETWEEN INDUCTION OF LABOUR AND EXPECTANT MANAGEMENT WITH
SERIAL ULTRASOUND 1. In expectant group 20-30% delivered by
caesarean section or induction before spontaneous labour.
2. Induction group at 41 weeks had:a) caesarean section rateb) fetal distress ratec) rate of macrosomiad) rate of meconium SL
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RECOMMENDATIONS:
1. Establish gestational age
2. At 39-40 weeks and six days:
In uncomplicated pregnancy no strong
indication for close fetal surveillance or
induction.
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Cont…Recommendations..
3. At 41 to 42
In uncomplicated pregnancy after either elective delivery vaginally or caesarean section, if vaginal delivery is C.I.
4. Exceptions (expectant management) some female prefer to wait and see they need close fetal monitoring.