Sandbox: Reddy: Difference between revisions

Jump to navigation Jump to search
Line 97: Line 97:


===Primary Prevention===
===Primary Prevention===
*In pregnant women with exposure to varicella, passive immunization with varicella zoster virus antibodies (VZV IgG) should be administered after 72-96hours of exposure. Passive immnuniaztion with immmunoglobulins decreases the risk of severe disease in the mother, but its efficacy in preventing the disease to the fetus is not established.


===Secondary Prevention===
===Secondary Prevention===

Revision as of 20:25, 13 February 2017

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Aravind Kuchkuntla, M.B.B.S[2]


Overview

Historical Perspective

  • In 1947, the first case of congenital varicella syndrome was reported.

Pathophysiology

Pathogenesis

  • Once a pregnant women has a primary varicella infection, transplacental transmission of the virus can take place affecting the fetus in utero.
  • The risk of abortion is high when the infection in the fetus occurs before 20 weeks of gestation.

Genetics

Gross Pathology

Microscopic Pathology

Epidemiology and Demographics

Natural History, Prognosis and Complications

Prognosis

Prognosis of infants with congenital varicella syndrome is poor, early death is due to gastroesophageal reflux and recurrent aspiration pneumonia and respiratory failure.

Complications

  • Fetal demise
  • Intrauterine growth restriction
  • Hydrops
  • Limb deformities
  • Microcephaly

Diagnosis

History and Symptoms

Physical Examination

Clinical manifestations suggestive of Congenital varicella syndrome include:

Clinical Manifestations in congenital varicella syndrome
Skin
  • Cicatricial lesions
  • Cutaneous defects
  • Hypopigmentation
Eye
  • Chorioretinitis
  • Cataracts
  • Micropthalmia
  • Anisocoria
Central Nervous System
  • Intrauterine encephalitis
  • Cortical atrophy/porencephaly
  • Seizures
  • Mental retardation
  • Autonomic instability
Musculoskeletal system
  • Limb hypoplasia
  • Muscle hypoplasia
Gastrointestinal
  • Gastrointestinal reflux
Systemic Manifestations
  • Intrauterine growth retardation
  • Developmental delay
Urinary Tract
  • Hydroureter
  • Hydronephrosis

Laboratory Findings

Imaging Studies

Treatment

Medical Therapy

Surgical Therapy

Prevention

Primary Prevention

Secondary Prevention

References