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Oligohydramnion in post

term pregnancyKheluwis.s

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,hysiology

uring the 7rst hal o pregnancy!transer o water and other smallmolecules ta*es place across the

amnion intramem/ranous fow! andacross etal s*in

'etal urine 8 and 11 wee*s (/ecamemaor component ater 18 wee*s+

 %ransport across the etal s*incontinues until *eratiniation occursat )) to ): wee*s.

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Amniotic 'luid 2olume ;egulationin ate ,regnancy

Pathway Efect on Volume Approximate DailyVolume (mL)

'etal urination ,roduction 1000

'etal swallowing ;esorption

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Amniotic fuid "olume assessment

O/ecti"e assessment depends on =>? tomeasure

eepest "ertical poc*et (2,+

Amniotic fuid inde (A'#+ #t is a total o the

2,s in each o the our @uadrants o theuterus. it is a more sensiti"e indicator o A'2throughout pregnancy

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Amniotic fuid a/normalities

Oligohydramnios: 

e7ned as reduced amniotic fuid

i.e. amniotic fuid inde o : cm or

less or the deepest "ertical pool ) cm

Polyhydramnios: e7ned as ecessi"e amount o amnioticfuid o )000 ml or more (A'# o B )4 cmor the deepest "ertical pool o B 8 cm+.

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ETIOLOGY

FETAL PROM

CHROMOSOMAL ANOMALIES

CONGENITAL ANOMALIES

IUGR

IUFD POSTTERM PREGNANCY

MATERNAL PREECLAMPSIA

CHRONIC HT 

PLACENTAL CHRONIC ABRUPTION TTTS CVS

DRUGS NSAIDs

ACE INHIBITORS

IDIOPATHIC

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DIAGNOSIS

 SYMPTOMS

NO SPECIFICSYMPTOMS

Postterm

preeclampsaLess !etal mo"eme#ts

  SIGNS

Uter$s % small!or &ate

Feels !$ll o!!et$sMalprese#tato#sIUGR

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=?$

METHODS 

DVP '( cms

  )'* se"ere+

AFI ', cms

  ),-./or&erl#e+

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 %echni@ue o A'#

Uter$s &"&e& #to 0 1$a&ra#tsTra#s&$cer # "ertcal pla#eS$m o! 0 1$a&ra#ts ma2 poc3et

&ept4 e2cl$&#5 cor& 6 lm/s7Pror to (8 93s ( 4al"esT9#s: composte AFI or #&"&$al

"ertcal poc3ets

1)

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O-,#A%#O?

  FETAL

A/orto#Premat$rt;

IUFD

De!ormtes %CTEV

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MANAGEMENT 

C,C? =,O

ETIOLOGYGESTATIONAL AGESEVERITYFETAL STATUS 6 =ELL BEING

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DETERMINE ETIOLOGY

R>O PROM< 4>o me&cal ll#essTARGETED USG FOR ANOMALIESR>O IUGR

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TREATMENT ADEQUATE REST – decreases dehydration

HYDRATION – Oral/IV Hypotonic l!ids"# $it/d%

  help!l d!rin& la'o!r(prior

to E)V( US*

SERIA$ US* – +onitor &ro,th(A-I

INDU)TION O- $A.OUR

 

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TREATMENT ACC7 TO CAUSE

Dr$5 #&$ce&PROM % INDUCTIONPPROM % A#t/otcs

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