Placenta previa: Difference between revisions

Revision as of 23:54, 28 March 2011

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- 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

c section
previous pl previa
twins
D&C
muliparous
scarring of uterus with no place for placenta to attach except at botton near cervix

Diagnosis

painless bright red blood
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

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

Authors:

@@ Line 1: / Line 1: @@
 ==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==
+# c section
+# previous pl previa
-- c section
+# twins
+# D&C
-- previous pl previa
+# muliparous
+# 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==
+# 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==
+# 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]]