S Jain1, J R Thompson2, B Foot3, A Tatham2, T Eke4. 1. Department of Ophthalmology, Royal Free Hospital, Royal Free Hampstead NHS Trust, London, UK. 2. University of Leicester, Leicester, UK. 3. Royal College of Ophthalmologists, London, UK. 4. Department of Ophthalmology, Norwich and Norfolk University Hospital, Norwich, UK.
Abstract
PURPOSE: The objective of this study is to estimate the incidence of steroid-induced severe intraocular pressure (IOP) rise following intravitreal triamcinolone acetonide (IVTA) injection and to describe case profiles of the patients affected within the United Kingdom. PATIENTS AND METHODS: A national survey was carried out to identify cases that had developed severe IOP rise requiring laser or surgery following IVTA through the British Ophthalmic Surveillance Unit. Respondents were mailed a questionnaire and with a follow-up questionnaire 1 year later, to ascertain characteristics of the patients identified. We also carried out a midpoint survey to ascertain national practice of IVTA at the time. RESULTS: There were 29 confirmed reports of severe IOP rise after IVTA in the 13-month period of surveillance. All the cases were unilateral and the mean time between the IVTA and the maximum recorded IOP was 16 weeks. Six of these patients had pre-existing glaucoma or ocular hypertension, and a further two were known to be 'steroid responders'. Using the adjusted denominators, obtained from our national survey, the estimated annual incidence would be between 3.6 and 9.5 per 1000 injections. CONCLUSIONS: These results confirm that severe IOP rise after IVTA is an uncommon but serious complication. Data obtained from this national study should aid clinicians in choosing the treatment best suited to their patients.
PURPOSE: The objective of this study is to estimate the incidence of steroid-induced severe intraocular pressure (IOP) rise following intravitreal triamcinolone acetonide (IVTA) injection and to describe case profiles of the patients affected within the United Kingdom. PATIENTS AND METHODS: A national survey was carried out to identify cases that had developed severe IOP rise requiring laser or surgery following IVTA through the British Ophthalmic Surveillance Unit. Respondents were mailed a questionnaire and with a follow-up questionnaire 1 year later, to ascertain characteristics of the patients identified. We also carried out a midpoint survey to ascertain national practice of IVTA at the time. RESULTS: There were 29 confirmed reports of severe IOP rise after IVTA in the 13-month period of surveillance. All the cases were unilateral and the mean time between the IVTA and the maximum recorded IOP was 16 weeks. Six of these patients had pre-existing glaucoma or ocular hypertension, and a further two were known to be 'steroid responders'. Using the adjusted denominators, obtained from our national survey, the estimated annual incidence would be between 3.6 and 9.5 per 1000 injections. CONCLUSIONS: These results confirm that severe IOP rise after IVTA is an uncommon but serious complication. Data obtained from this national study should aid clinicians in choosing the treatment best suited to their patients.
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