Risk Factors and Clinical Outcomes of Secondary Infection in Congenital Dacryocystocele

Yanhong Ren1, Daohuan Kang1, Lu Yuan1

  • 1Department of Ophthalmology, Children's Hospital, Zhejiang University School of Medicine, National Clinical Research Center For Child Health, No.3333, Binsheng Road, Binjiang District, Hangzhou, 310003, China.

Ophthalmology and Therapy
|February 13, 2026
PubMed

Insights

Infants with congenital dacryocystocele (CD) face a high risk of secondary infection, predicted by intranasal cysts, prior lacrimal sac massage, and winter-spring onset. Infection prolongs treatment and increases invasive interventions.

Area of Science:

  • Ophthalmology
  • Pediatrics
  • Otorhinolaryngology

Background:

  • Congenital dacryocystocele (CD) is a rare form of congenital nasolacrimal duct obstruction.
  • CD poses a significant risk of severe secondary infection.
  • Risk factors for secondary infection in CD remain incompletely understood.

Purpose of the Study:

  • To identify independent risk factors for secondary infection in infants with CD.
  • To assess the impact of secondary infection on treatment duration and prognosis.

Main Methods:

  • Retrospective cohort study of 100 infants (118 eyes) with CD treated between 2017 and 2024.
  • Data collected included demographics, clinical features, and treatment details.
  • Multivariate logistic regression analysis was used to determine independent risk factors for secondary infection.

Main Results:

  • Secondary infection occurred in 50.85% of affected eyes.
  • Independent risk factors for infection included concomitant intranasal cyst (aOR=5.07), history of lacrimal sac massage (aOR=3.11), and winter-spring onset (aOR=2.97).
  • Infected infants required significantly longer treatment (median 6 days vs. 1 day) and more invasive management.

Conclusions:

  • Concomitant intranasal cysts, prior lacrimal sac massage, and winter-spring onset are significant predictors of secondary infection in CD.
  • Secondary infection complicates CD treatment, leading to prolonged care and increased need for invasive procedures.
  • Accurate diagnosis and standardized treatment protocols are crucial for managing infants with CD to mitigate infection risks.
Abstract

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