Difference between revisions of "Placenta previa"

(Created page with "==Background== - placenta improperly positioned between cervic and baby. can be total, partial or marginal - tx c c section - hem from early separation of placenta from ut- ...")
 
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==Background==
 
==Background==
 
+
# placenta improperly positioned between cervic and baby. can be total, partial or marginal
 
+
# tx c c section
- placenta improperly positioned between cervic and baby. can be
+
# hem from early separation of placenta from ut- due to gradual thinning of cervix in anticipation of delivery.  can also be by physical exertion, labor, local trauma (intercourse, speculum exam)
 
+
# assoc with intrauterine growth retardation, congenital abnormalities, and placenta prev.
total, partial or marginal
 
 
 
- tx c c section
 
 
 
- hem from early separation of placenta from ut- due to gradual
 
 
 
thinning of cervix in anticipation of delivery.  can also be by
 
 
 
physical exertion, labor, local trauma (intercourse, speculum exam).
 
 
 
- assoc with intrauterine growth retardation, congenital
 
 
 
abnormalities, and placenta prev.
 
 
 
 
  
 
==Risk Factors==
 
==Risk Factors==
 
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# c section
 
+
# previous pl previa
- c section
+
# twins
 
+
# D&C
- previous pl previa
+
# muliparous
 
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# scarring of uterus with no place for placenta to attach except at botton near cervix
- twins
 
 
 
- D&C
 
 
 
-muliparous
 
 
 
- scarring of uterus with no place for placenta to attach except at
 
 
 
botton near cervix
 
 
 
 
  
 
==Diagnosis==
 
==Diagnosis==
 
+
# painless bright red blood
 
+
# exam only with double set up in OR by obstetrician
- painless bright red blood
+
# in ER use abd utz
 
+
# 90% of prev dx before 20 wks will have placnta that migrates away from cervix or lower ut  segmnt will grow more
- exam only with double set up in OR by obstetrician
 
 
 
- in ER use abd utz
 
 
 
- 90% of prev dx before 20 wks will have placnta that migrates away
 
 
 
from cervix or lower ut  segmnt will grow more
 
 
 
 
  
 
==Treatment==
 
==Treatment==
 
+
# c section
 
+
# if fetus not viable, tx in hospital until viable then c section
- c section
 
 
 
- if fetus not viable, tx in hospital until viable then c section
 
 
 
 
 
 
 
 
 
 
  
 
[[Category:OB/GYN]]
 
[[Category:OB/GYN]]

Revision as of 23:54, 28 March 2011

Background

  1. placenta improperly positioned between cervic and baby. can be total, partial or marginal
  2. tx c c section
  3. hem from early separation of placenta from ut- due to gradual thinning of cervix in anticipation of delivery. can also be by physical exertion, labor, local trauma (intercourse, speculum exam)
  4. assoc with intrauterine growth retardation, congenital abnormalities, and placenta prev.

Risk Factors

  1. c section
  2. previous pl previa
  3. twins
  4. D&C
  5. muliparous
  6. scarring of uterus with no place for placenta to attach except at botton near cervix

Diagnosis

  1. painless bright red blood
  2. exam only with double set up in OR by obstetrician
  3. in ER use abd utz
  4. 90% of prev dx before 20 wks will have placnta that migrates away from cervix or lower ut segmnt will grow more

Treatment

  1. c section
  2. if fetus not viable, tx in hospital until viable then c section