Incidence of Retinopathy of Prematurity in Maharat Nakhon Ratchasima Hospital
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Abstract
Aims: (Primary) To study incidence of Retinopathy of prematurity (ROP) in Maharat Nakhon Ratchasima Hospital and (Secondary) to study relation between sex, gestational age (GA), birth weight and oxygen therapy to ROP. Patients & Methods: This retrospective descriptive chart review of newborns who were GA <32 weeks or birth weight <1,500 grams or received oxygen therapy or Pediatricians considered for retinal examination, in Maharat Nakhon Ratchasima Hospital between 1 January 2010 and 31 December 2011. All newborns underwent serial retinal examination and recorded severity of ROP and time when diagnosed. Diagnosis of ROP was based on Criteria of International Classification of Prematurity. Results: 478 Newborns were evaluated and 78 Persons (16.3%) had ROP. The mean birth weight of ROP newborns was 1,319±429.6 grams and mean GA was 29.9±2.9 weeks. For subgroup analysis by birth weight, newborn whose birth weight ≤1,250, ≤1,500, ≤2,000, >1,500 and >2,000 grams had ROP 33.3%, 25.1%, 17.4%, 7.2% and 7.7%, consecutively. For subgroup analysis by GA, newborn whose GA <28, ≤32 and >32 weeks has ROP 46.7%, 19.4% and 8.7%, consecutively. Low birth weight and Low GA had statistical significant related to ROP. Conclusion: Incidence of ROP in Maharat Nakhon Ratchasima Hospital was 16.3% and newborn whose birth weight >2,000 grams could be found ROP 7.7%
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