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Young patient's age determines pterygium recurrence after surgery
P Anguria1, S Ntuli2, T Carmichael1
1Department of Neurosciences, Division of Ophthalmology, University of the Witwatersrand Johannesburg, South Africa.
African Health Sciences
|June 11, 2015
Summary
Younger age is linked to pterygium recurrence after surgery. However, large pterygia appear protective against recurrence, suggesting factors influencing outcomes after pterygium excision.
Area of Science:
- Ophthalmology
- Surgical Outcomes
- Ocular Surface Disease
Background:
- Pterygium recurrence after surgical excision remains a clinical challenge.
- Predictors of pterygium recurrence, including patient demographics and pterygium characteristics, require further elucidation.
Purpose of the Study:
- To investigate demographic factors, pterygium characteristics, and limbal stem cell deficiency as determinants of pterygium recurrence post-excision.
- To compare recurrence rates between free conjunctival autotransplant (CAT) and limbal conjunctival autotransplant (LCAT) techniques.
Main Methods:
- A cohort of 190 patients undergoing pterygium surgery were followed for 6 months.
- Data collected included patient age, gender, occupation, pterygium grade, and surgical technique (CAT or LCAT).
- Multivariate analysis identified predictors of recurrence, and recurrence rates were compared between surgical groups.
Main Results:
- Pterygium recurred in 27.4% of patients.
- Younger age (<50 years) showed a trend towards increased recurrence (OR=1.54, p=0.28).
- Large pre-operative pterygia (grade ≥3) were significantly associated with a lower risk of recurrence (OR=0.11, p<0.001). Recurrence rates were similar between CAT (28.7%) and LCAT (25.8%) groups (p=0.66).
Conclusions:
- Younger patient age is associated with a higher likelihood of pterygium recurrence following surgical excision and grafting.
- Pre-existing large pterygia appear to have a protective effect against post-operative recurrence.
- The surgical technique (CAT vs. LCAT) did not significantly influence recurrence rates in this study.

