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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.
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.
Introduction:
Congenital dacryocystocele (CD) represents a rare yet clinically significant subtype of congenital nasolacrimal duct obstruction. It carries a substantial risk of severe secondary infection, yet its risk factors have not been fully elucidated. This study aimed to identify the independent risk factors for secondary infection in infants with CD and to evaluate the impact of infection on treatment course and prognosis.
Methods:
A retrospective cohort study was conducted in 100 infants (118 eyes) diagnosed and treated for CD in a tertiary hospital between January 2017 and December 2024. Demographic characteristics, clinical features, and treatment details were collected and analyzed. Univariate analysis and a multivariate logistic regression model were used to identify independent risk factors associated with secondary infection.
Results:
Secondary infection occurred in 60 of the 118 eyes (50.85%, 95% confidence interval (CI): 41.50-60.20%). Multivariate logistic regression analysis identified three independent risk factors for secondary infection: concomitant intranasal cyst (adjusted odds ratio (aOR) = 5.07, 95% CI: 2.10-12.23, p < 0.001), a history of lacrimal sac massage (aOR = 3.11, 95% CI: 1.29-7.46, p = 0.01), and disease onset during the winter-spring season (aOR = 2.97, 95% CI: 1.27-6.93, p = 0.01). Compared to the non-infected group, infants with secondary infection required a significantly longer treatment duration (median: 6.00 days vs.1.00 day, p < 0.001) and required more invasive management.
Conclusions:
Concomitant intranasal cyst, a history of lacrimal sac massage, and winter-spring season onset are strong independent predictors of secondary infection in CD. Secondary infection is associated with not only a prolonged treatment course but also a higher probability of invasive intervention. These findings highlight the need for accurate diagnosis and adherence to standardized treatment protocols in infants with CD.
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