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Transient increase in intraocular pressure during a dose-tapering regime of systemic dexamethasone in preterm infants.

Abstract：

PURPOSE:To determine the intraocular pressure (IOP) profile during and after systemic dexamethasone treatment in preterm very low birth weight (VLBW; <1500 g) infants. DESIGN:A cohort study at a university-affiliated tertiary neonatal center. PARTICIPANTS:Twenty-seven VLBW infants who received a 3-week dose-tapering course of systemic dexamethasone for treatment of bronchopulmonary dysplasia were consecutively enrolled over a period of 32 months. METHODS:Intraocular pressure was assessed using a handheld tonometer immediately before (week 0), during (weeks 1 and 3), and after (weeks 5, 7, and 9) commencement of the dexamethasone course. The mixed-effects models were used to evaluate the longitudinal IOP measurements at different time points. MAIN OUTCOME MEASURES:To assess the magnitude and duration of increase in IOP during systemic corticosteroid treatment. RESULTS:The IOP at week 1, while the infants were receiving the maximum dose of dexamethasone (0.6 mg/kg/day), was significantly higher than (1) the pretreatment IOP at week 0 (mean [+/- standard deviation]: 19.7 [+/-3.7] vs. 16.4 [+/-3.7] mmHg, respectively) (P<0.0001), (2) the IOP when the infants were receiving the minimum dose of dexamethasone (0.15 mg/kg/day) at week 3 (19.7 [+/-3.7] vs. 15.8 [+/-4.3] mmHg) (P<0.0001), and (3) the IOP after the dexamethasone course had been stopped between week 5 and week 9 (19.7 [+/-3.7] vs. 16.0 [+/-4.0], 15.3 [+/-3.5], and 14.5 [+/-3.3] mmHg for weeks 5, 7, and 9, respectively) (P<0.0001 for all comparisons). In contrast, there was no significant difference between the pretreatment IOP (week 0) and IOP at week 3, 5, 7, or 9 (P = 0.07-0.62) and in the IOP between week 3 and week 5, 7, or 9 (P = 0.27-0.75). CONCLUSIONS:The use of a dose-tapering regime of dexamethasone is associated with transient increase of IOP. As IOP was significantly raised during the high-dose but not the low-dose treatment period, we speculate that the physiologic or stress dose of corticosteroids commonly advocated for treatment of serious neonatal conditions should be safe and unlikely to cause significant ocular hypertension in preterm infants.

journal_name

Ophthalmology

journal_title

Ophthalmology

authors

Ng PC,Lee CH,Tam BS,Wong SP,Lam HS,Kwok AK,Fok TF

doi

10.1016/j.ophtha.2008.01.010

subject

Has Abstract

pub_date

2008-05-01 00:00:00

pages

e7-14

issue

5

eissn

0161-6420

issn

1549-4713

pii

S0161-6420(08)00026-2

journal_volume

115

pub_type

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