Maternal Infections in Pregnancy Flashcards

1
Q

Rubella risks?

A

Miscarriage if contracted in 1st semester and non-immune

Teratogenic

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2
Q

Rubella in early gestation consider what if ptnt isn’t immune

A

TOP

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3
Q

Risk of what syndrome in rubella?

A

Congenital rubella syndrome

  • Cataract
  • Cardiac abnormalities
  • Deafness
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4
Q

What is Rubella?

A

Viral infection

Transmitted by direct contact/resp droplet exposure

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5
Q

Presnetation of rubella?

A

Fever
Rash
Lymphadenopathy
Polyarthritis
-Miscarriage, still birth, birth defects
-Birth defects: cataracts, cardiac issues, deafness

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6
Q

Management of Rubella?

A
  • Rubella specific IgG Antibody can be detected after natural infection or vaccination
  • Blood IgM should be done within 10 days of exposure
  • If patient not immune consider TOP
  • Supportive treatment: rest, fluids, paracetamol, avoid contact with other pregnant woman
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7
Q

What causes measles?

A

Paramyxovirus

Highly contagious

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8
Q

Presnetation of measles?

A
Fever 
White spots inside mouth 
Runny nose 
Cough
Red eyed and rash 
Non teratogenic 
However fever can cause IUGR, microcephaly, miscarriage, stillbirth, preterm 
High mortality rate if mother develops pneumonia and encephalitis
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9
Q

Harm caused by measles?

A

Not teratogenic

- Bad fever can harm baby

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10
Q

What is chicken pox?

A

VZV is dna virus of herpes family

Transmission via droplets

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11
Q

Presnetation of chicken pox?

A
Fever 
Malaise 
Vesicular rash 
Primary infections 
Severe infection: he, encephalitis, pneumonia
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12
Q

Management of chiken pox?

A

Check for VSV immunity
Offer VZIG within 10 days of exposure
Ptt should avoid contact with other pregnants
Infective until lesions crust
Acyclovir considered if 20+ weeks (800mg x5 a day for 7 days)

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13
Q

Infection at 7-28 weeks?

A
Hypoplasia of limbs 
Psychomotor retardation 
IUGR 
Chorioretinal scarring 
Cataracts 
Microcephaly 
Cutaneous scarring
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14
Q

Risk of chicken pox before 28 weeks?

A

Fetal varicella syndrome and >28 weeks of neonatal VZV

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15
Q

What is CMV the leading cause of?

A

Deafness

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16
Q

Foetal parovirus infection associated with?

A

Severe anaemia
Heart failure
Hydrops fetalis

17
Q

Mumps effect on pregnancy>

A

None

18
Q

Flu vaccine in pregnancy and breast feeidng?

A

Safe

19
Q

Zika virus presnettaion in majority of people infected?

A

Asymptoomatic

20
Q

However what can zika virus cause?

A

Severe birth defects

21
Q

HIV and pregnancy?

A

Viral load <50 copies/ml she can be offered vaginal delivery if higher c section is protective

22
Q

Breast feeding vs formula in HIV?

A

Formula safest but if mother on ARV and undetectable viral load then it is mothers choice

23
Q

During vaginal delivery which strep is commonly found in vagina so could be transmitted?

A

Group B strep

24
Q

If risk factors for neonatal infection are present for Group B strep?

A

Use of intrapartum IV penicillin can reduce risk

25
Q

Women are less/more prone to UTIs i pregnancy?

A

More as increased progesterone causes sphincters to relax

26
Q

Ig a woman has a primary HSV infection in third trimester the risk of infection to fetus is?

A

Much higher, these women need a c section, and possibly started on IV acyclovir, fetal monitoring and fetal antiviral agents

27
Q

Congenital CMV diagnosed by?

A

IgG positive seronegative mother

28
Q

Management of CMV?

A

Antiviral drugs: valacyclovir

Hyper immune globulin

29
Q

WHat is parovirus AKA?

A

Slapped cheek syndrome

30
Q

Presentation of parovirus?

A

Slapped cheek appearance

Aplastic anaemia, congenital HF, hydrops and foetal death

31
Q

Diagnosis of parovirus?

A

Detection of virus specific IgM

32
Q

Management of parovirus?

A

Avoid contact with children and pregnant woman
Serial USS
Foetal MCA doppler

33
Q

How does toxoplasmosis affect babies?

A
Hydrocephalus 
Chorioretinitis 
Cerebral calcifications 
Microcephaly 
Mental retardation
34
Q

Management of toxoplasmosis?

A

Spiraycin 3mg orally daily

35
Q

Management of listeriosis?

A

Ampicillin + gentamicin

Trimethoprim and sulfamethazole