Hypertensive and HLA-B27 negative uveitis: Disease course and complications.

Abstract

To perform a retrospective analysis on patients with HLA-B27 negative hypertensive acute anterior uveitis. Aqueous humor samples were obtained on which a polymerase chain reaction (PCR) test was performed. The patients were then classified into 3 groups depending on whether they were positive for cytomegalovirus (CMV) or herpesvirus (HSV-VZV) or negative for both. Different variables were collected in successive visits (baseline, 3, 6, and 12 months). The variables were age, sex, visual acuity, intraocular pressure (IOP), cells in the anterior chamber, retro-keratic precipitates, hypotensive treatment, glaucoma or retina surgery, corneal transplantation, and central thickness of the retinal nerve fiber layer. The sample was 36 patients, with a mean age of 59.78±15.26 years. The mean baseline IOP value was 40±10.42mmHg in the CMV group compared to 23.8±10.4mmHg in the HSV-VZV, and 22.65±9.9mmHg in the negative group. The baseline frequency of retro-keratic precipitates, hypotensive treatment, glaucoma surgery, and corneal transplantation was higher in CMV positives. At one year, the loss of retinal nerve fiber layer and glaucoma surgery was greater in the negative group. In the 3 groups, there was a direct and positive correlation between IOP and inflammation in the anterior chamber. Being 0.94 (P=.05) for the positive for CMV, 0.24 (P=.75) in that of HSV-VZV, and 0.98 (P=.17) in the negative group. HLA-B27 negative hypertensive acute anterior uveitis with CMV positive has a more aggressive initial presentation. However, after one year, the glaucomatous damage is less than in the negative group. In hypertensive acute anterior uveitis, when inflammation in anterior chamber is controlled then IOP is also controlled.