Prevalence of normal-tension glaucoma in patients with primary aldosteronism: Prevalence of NTG in patients with primary aldosteronism.

PURPOSE: To investigate patients with primary aldosteronism (PA) and the prevalence of normal-tension glaucoma (NTG). DESIGN: Cross-sectional study. METHODS: Newly diagnosed PA patients were evaluated in this cross-sectional study, with ophthalmic examinations such as intraocular pressure (IOP) measurements by a Goldmann applanation tonometer, central corneal thickness (CCT), slit-lamp biomicroscopic examination, gonioscopy, ophthalmoscopy, fundus photography, visual field test with a Humphrey Field Analyzer 24-2 SITA Standard program, and optical coherence tomography (OCT) of the peripapillary retinal nerve fiber layer (RNFL), performed in each of the subjects. Optic disc appearance, perimetric results, OCT results, and other ocular findings were all used for determining the glaucoma diagnosis. The primary outcome was shown the prevalence of NTG in patients with PA. RESULTS: NTG prevalence in the 212 PA patients was 11.8% (95% confidence interval [CI], 4.7%-20.7%). As compared to the hypertensive patients without PA, the hypertensive patients with PA exhibited a significantly increased NTG prevalence (odds ratio; 4.019, 95% CI, 1.223-13.205; P = .022). Increased NTG prevalence was associated with age, ranging from 8.8% (95% CI, 2.1%-15.6%) for those aged 40 to 49 years, to 37.5% (95% CI, 13.8%-61.2%) for those aged 70 years and older. In 72 hypertensive patients without PA, who were used as the controls, NTG prevalence was 5.2%, with a 95% CI ranging from 0.5% to 14.4%. CONCLUSIONS: There was an 11.8% prevalence of NTG in PA patients, with these patients at an elevated risk of NTG, which was not mediated by blood pressure.

A rare case of scleritis and multiple rheumatoid pulmonary nodules associated with seronegative rheumatoid arthritis.

Seronegative rheumatoid arthritis (RA) is less likely to have extra-articular manifestations than seropositive RA. An 80-year-old man with polyarthritis was diagnosed with seronegative RA in which rheumatoid factors and anti-cyclic citrullinated peptides were not detected. He had multiple pulmonary nodules that diminished in size following treatment for RA, leading to the diagnosis of pulmonary rheumatoid nodules. During his treatment course, he developed scleritis, which could have resulted in blindness. As oral steroids did not improve his condition, topical steroid injections were administered, and his symptoms gradually improved. Here, we present a case of seronegative RA with an unusual combination of extra-articular manifestations: rheumatoid pulmonary nodules and scleritis.

Compromised Blood Flow in the Optic Nerve Head after Systemic Administration of Aldosterone in Rats: A Possible Rat Model of Retinal Ganglion Cell Loss.

PURPOSE: To investigate the optic nerve head (ONH) blood flow, retinal vessel diameters, and retinal ganglion cell (RGC) loss after systemic administration of aldosterone in rats. METHODS: Aldosterone (80 µg/kg/day) or vehicle was administered using an osmotic minipump in Brown Norway rats. The mean blur rate in the vessel (MV) and tissue (MT) regions and retinal vessel diameters in the ONH were measured by laser speckle flowgraphy before and 1, 2, and 4 weeks after administration of aldosterone or vehicle. Intraocular pressure (IOP), blood pressure, and heart rate were recorded. The retrogradely labeled RGCs were counted in the retinal flatmounts prepared 5 weeks after treatment. RESULTS: The MV and MT in the aldosterone group significantly decreased at 2 and 4 weeks (MV: 2 weeks, p = 0.001, 4 weeks, p < 0.001; MT: 2 weeks, p = 0.02, 4 weeks, p = 0.03). The artery and vein diameters significantly decreased at 1, 2, and 4 weeks in the aldosterone group (all p < 0.001). The MV, MT, and vessel diameters remained unchanged in the vehicle group. Other parameters did not change over time in either group. RGC counts were significantly lower in the aldosterone group than in the vehicle group (p < 0.001). CONCLUSIONS: ONH blood flow decreased following retinal vessel constriction without changes in IOP or blood pressure in a possible rat model of RGC loss by systemic administration of aldosterone.

A ganglion within the ulnar nerve and communication with the distal radioulnar joint via an articular branch: case report.

An intraneural ganglion is rare, and involvement of an articular nerve may suggest a possible pathogenesis. We report an intraneural ganglion of the ulnar nerve with a connection to the distal radioulnar joint via the articular branch. We excised the ganglion, the stalk, and the articular branch. To date, there has been no recurrence.

The association of primary aldosteronism with glaucoma-related fundus abnormalities.

PURPOSE: To elucidate glaucoma-related fundus abnormalities in patients with primary aldosteronism (PA). METHODS: The study compared 272 eyes from 137 PA patients and 352 eyes from 177 control subjects selected randomly from 1173 participants of a public glaucoma screening. The presence of glaucomatous optic disc appearance (rim thinning and cup enlargement) and retinal nerve fiber layer defects (RNFLDs) was determined independently from fundus photographs. The results were compared between the PA and control groups. RESULTS: There were 9 patients (6.6%) with glaucomatous optic disc abnormalities in the PA group and 10 cases (5.6%) identified in the control group (p = 0.92). RNFLDs were detected more frequently in the PA group (55 eyes, 20.2%) than in the control group (26 eyes, 7.4%; p<0.001). The two types of RNFLDs were classified as either having their central ends at the disc margin (D) or away from the disc margin and around the retinal vessels (V). Type D and V RNFLDs were detected in 35 (12.9%) and 26 (9.6%) eyes in the PA group and in 25 (7.1%) and 4 (1.1%) eyes in the control group, respectively. Both types of RNFLDs were more frequent in the PA group than in the control group (Type D and V, p = 0.03, <0.001, respectively). CONCLUSION: Although the prevalence of glaucomatous optic disc appearance did not differ between the two groups, RNFLDs were more frequent in PA patients than in the control group. Moreover, RNFLDs with their central ends located around retinal vessels were characteristic of PA patients.

Determinants of Corneal Endothelial Cell Loss After Trabeculectomy With Mitomycin C.

PURPOSE: To investigate factors associated with decreased corneal endothelial cell density (ECD) after trabeculectomy with mitomycin C (MMC). METHODS: Retrospective review of consecutive glaucoma cases who underwent trabeculectomy with MMC. The types of glaucoma included were primary open-angle glaucoma, exfoliation glaucoma (XFG), neovascular glaucoma, and uveitic glaucoma (UG). The postoperative ECD changes compared with the preoperative ECD and risk factors for ECD decrease were analyzed using mixed-effects models. RESULTS: In total, 162 eyes of 136 patients were included in this study. Postoperative ECD measurements were performed 3.7±1.8 times (mean±SD) during a median follow-up period of 34 months. The mean intraocular pressure decreased from 25.3±9.6 to 9.2±2.3 mm Hg postoperatively. The marginal mean (SE) ECD decrease at 24 months was 9.3% (1.3%) in all cases. The marginal mean ECD decrease at 24 months was 18.2% (3.1%) and 20.6% (4.7%) in eyes with XFG and UG, respectively, which was significantly greater than 4.8% (1.8%) in eyes with primary open-angle glaucoma (P<0.001, each), after accounting for the variability in the number and timepoint of ECD measurements. Multivariate mixed-effects model analyses showed that type of glaucoma (XFG and UG) and older age were significantly associated with larger ECD decrease, and preoperative factors (oral carbonic anhydrase inhibitor and vitrectomy) and postoperative choroidal detachment were significantly associated with a declining trend of ECD over time. CONCLUSIONS: The type of glaucoma (XFG, UG) and older age were risk factors for larger ECD decrease after trabeculectomy with MMC.

The Relationship Between Interocular Asymmetry of Visual Field Defects and Optic Nerve Head Blood Flow in Patients With Glaucoma.

PURPOSE: To investigate the association between asymmetry of visual field (VF) defects and optic nerve head (ONH) blood flow in patients with glaucoma using laser speckle flowgraphy. METHODS: In total, 170 eyes of 85 patients with primary open-angle glaucoma were included. Intraocular pressure, VF (Humphrey 24-2, SITA program), mean blur rate in the tissue area (MBR-T) of the ONH measured by laser speckle flowgraphy, axial length, circumpapillary retinal nerve fiber layer thickness (cpRNFLT), disc area, cup/disc area ratio, and parapapillary atrophy (PPA) area was measured in each eye. The paired eyes were divided into better and worse eyes according to the mean deviation (MD) of VF, and intereye differences of various parameters (better MD eye minus worse MD eye) were examined. Factors associated with MD difference, MBR-T difference, or cpRNFLT difference were investigated. RESULTS: MD of the VF in better and worse eyes were -10.2±7.3 dB and -16.8±7.4 dB, respectively. In stepwise multiple regression analysis, MBR-T differences, cpRNFLT differences and sex (male) were significantly correlated with MD differences (ß, 0.26, 0.21, 0.20; P=0.01, 0.04, 0.047, respectively). MD differences were significantly associated with MBR-T differences (ß, 0.28; P=0.01). For cpRNFLT differences, differences in ß-PPA area and MD differences were identified as significant factors (ß, -0.26, 0.22; P=0.02, 0.04, respectively). CONCLUSIONS: Asymmetry of ONH blood flow is significantly associated with asymmetry of visual field defects in patients with glaucoma independently of cpRNFLT.

Comparison of Sectoral Structure-Function Relationships in Glaucoma: Vessel Density Versus Thickness in the Peripapillary Retinal Nerve Fiber Layer.

Purpose: To compare the sectoral structure-function relationships in glaucoma between two structural parameters, vessel density (VD) and thickness, in the peripapillary retinal nerve fiber layer (RNFL). Methods: Optical coherence tomography (OCT) angiography (AngioVue/RTVue-XR) for VD and OCT (RS-3000) for peripapillary RNFL thickness were performed in 129 eyes from 129 subjects (94 glaucoma, 17 glaucoma suspects, and 18 normal eyes). Humphrey visual field (VF) tests were performed using a SITA standard 24-2 program. Sectoral structure-function relationships based on the Garway-Heath map were compared between VD and thickness using a semipartial correlation coefficient (sr) and partial residual plots determined by multiple linear regression models controlling for the effects of sex, age, axial length, disc area, beta- and gamma- parapapillary atrophy (PPA) zones, and signal strength index (SSI). Results: For all VF sectors, the sr2 of VD was largest when the VD sector corresponded to the VF sector (sr2: 0.17-0.39). In contrast, in only three sectors was the sr2 of thickness largest when the thickness sector corresponded to the VF sector (sr2: 0.02-0.34): the inferior temporal, temporal, and superior temporal sectors. The partial residual plots against VD showed more linear relationships with VF sensitivity than those against thickness in the qualitative evaluation of fitting by locally weighted scatterplot smoothing. Eyes with larger SSI had higher VD, whereas eyes with a larger extension of the PPA zone into the VD measurement area had lower VD. Conclusions: Peripapillary RNFL VD and thickness have different characteristic sectoral structure-function relationships in glaucoma.