Infantile Takayasu: clinical features and long-term outcome

Adi Miller-Barmak1,2, Flavio Sztajnbok3, Zeynep Balik4

  • 1Department of Pediatrics B, Ruth Rappaport Children's Hospital, Rambam Health Care Campus, Haifa, Israel.

Insights

Infantile Takayasu arteritis (TAK) is severe, often requiring biologic agents and invasive procedures. This largest case series highlights unique infant characteristics and complications compared to older children with this rare large-vessel vasculitis.

Area of Science:

  • Pediatric Rheumatology
  • Vasculitis Research
  • Immunology

Background:

  • Takayasu arteritis (TAK) is a rare large-vessel vasculitis predominantly affecting children and young adults.
  • Infantile cases of TAK are exceptionally rare, with limited data on their specific clinical and demographic profiles.
  • Existing literature on pediatric TAK often excludes or underrepresents infants, necessitating focused research on this age group.

Purpose of the Study:

  • To present the largest case series of infantile Takayasu arteritis (TAK).
  • To identify the demographic and clinical characteristics of infants diagnosed with TAK.
  • To compare the presentation and management of infantile TAK with that of older children.

Main Methods:

  • An international multicenter retrospective cohort study was conducted.
  • Data were collected from patient charts of children diagnosed with TAK before the age of 5 years.
  • Inclusion required meeting both EULAR/PReS 2008 and 1990 ACR/EULAR criteria for Takayasu arteritis.

Main Results:

  • Twelve infants (50% female) with a median onset age of 11 months were included, with a 4-month diagnostic delay.
  • Hypertension, blood pressure differences, and fever were the most common presenting symptoms.
  • The abdominal aorta and renal arteries were most frequently involved; 50% received biologics, with infliximab showing a 40% remission rate.

Conclusions:

  • This study represents the largest cohort of infantile Takayasu arteritis.
  • Infants with TAK exhibit more severe disease compared to older children.
  • Infantile TAK is associated with a higher likelihood of biologic agent use, complications, and need for invasive interventions.
Abstract

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