Effectiveness of pars plana Ahmed® valve implantation in patients with refractory glaucoma.

PURPOSE: To evaluate the success rate and complications of the Ahmed FP7 valve implanted via Pars Plana in a group of vitrectomized patients with refractory glaucoma and anterior segment abnormalities from January 2018 to June 2023. METHODS: Quasi-experimental, prospective study. Eleven eyes with refractory glaucoma were included. Participants underwent a comprehensive ophthalmic examination, including assessment of intraocular pressure (IOP) reduction, visual acuity, characterization of glaucoma type, and number of antiglaucoma medications. RESULTS: The mean baseline IOP was 37.3 ±â€¯11 mmHg, which decreased to 13.5 ±â€¯3.0 mmHg after one year. The qualified success rate was 63.7%, while the complete success rate was 36.3%. The most common diagnosis was neovascular glaucoma in 36.4% of cases. The most frequent postoperative complications were choroidal detachment and hypotony. CONCLUSIONS: Our data suggest that implantation of the Ahmed FP7 valve via pars plana is an effective and safe option for patients with refractory secondary glaucoma.

Evaluation of clinical and functional sequels of central serous chorioretinopathy. A case series analysis.

OBJECTIVE: To evaluate the clinical and functional sequelae of patients with a diagnosis of resolved CSC, through macular OCT, contrast sensitivity test, visual field 10-2 and Farnsworth D-15 color test. METHODS: 27 eyes of 26 individuals with CSC resolved by macular OCT were included and evaluated; the patients underwent a contrast sensitivity test with the Optec 6500 equipment, a 10-2 visual field with an Octopus 900 Haag-Streit, and a Farnsworth D-15 color test. RESULTS: Sequelae were observed in 20 eyes (74.1%) by macular OCT and in 21 (77.8%) in contrast sensitivity, predominantly type 2 defect. Also 27 (100%) had a visual field 10-2 altered corresponding to reduced foveal sensitivity, 11 eyes (40.7%) corresponded to central and paracentral scotomas. The color test showed alteration in 11 (40.7%) of the total eyes evaluated, finding tritanomaly in 9 of them (81.8%). No significant differences were observed in the studies between observation group vs the treatment group. CONCLUSIONS: CSC can leave sequelae in the visual quality of patients despite treatment in the acute phase. Visual acuity before and after treatment in the intervention group had no significant difference.

Validation of the color graduation scale in the optical nerve photograph, an alternative for qualitative classification.

BACKGROUND: To validate objectively the proposed Teherán-Morales's color grading scale, comparing to the subjective readings of specialists in optic nerve photography. METHODS: Concordance study and diagnostic tests, in which 150 photographs of the optic nerve were evaluated, from three groups, glaucomatous neuropathy, neuropathy of other origin and control group with the Teherán-Morales's color scale and the analysis of three experts in optic nerve. Spearman's Rho correlation was performed between both analysis methods. RESULTS: In the analysis of all the photographs using Spearman's Rho, we found moderate correlations that were statistically significant P < 0.0001, the highest was in the temporal quadrant by observer 1 (r = 0.650 95% CI 0.546-0.733). In photographs of optic neuropathy, the correlations become moderately high, and statistically significant P < 0.0001, the highest correlation was for the temporal quadrant by observer 1 (r = 0.772 95% CI 0.626-0.865). In the glaucoma and normal eyes groups, there were moderate to low correlations with statistical significance P < 0.05. CONCLUSIONS: The Teherán-Morales's scale, for color grading, is useful in detecting color, correlates moderately with the subjective assessment of experts in the optic nerve having its best performance in optic neuropathy with very pale discs. However, in normal or glaucomatous optic discs, it has a low correlation, compared to the subjective clinical assessment.

Validación de la escala de graduación del color en la fotografía del nervio óptico, una alternativa para la clasificación cualitativa / Validation of the color graduation scale in the optical nerve photograph, an alternative for qualitative classification

ObjetivoValidar de forma objetiva la escala de graduación del color Teherán-Morales propuesta, comparándola con las lecturas subjetivas de especialistas en lectura de fotografías del nervio óptico.Material y métodosEstudio de concordancia y pruebas diagnósticas, en el que 150 fotografías del nervio óptico fueron evaluadas, distribuidas en tres grupos, neuropatía glaucomatosa, neuropatía de otro origen y grupo control los cuales se sometieron a evaluación mediante la escala de color Teherán-Morales por parte de 3 expertos en nervio óptico independientes. Se realizó correlación Rho de Spearman entre ambos métodos de análisis.ResultadosEn el análisis de todas las fotografías mediante la rho de Spearman, encontramos correlaciones moderadas que fueron estadísticamente significativas P <0,0001, la mayor de ellas fue por el observador 1 (r=0,650 IC 95% 0,546 a 0,733) en el cuadrante temporal. En fotografías de neuropatía óptica, las correlaciones pasan a ser moderadas altas, y estadísticamente significativas P<0,0001, siendo la correlación más alta para el cuadrante temporal por el observador 1 (r=0,772 IC 95% 0,626 a 0,865). En los grupos de glaucoma y ojos normales, hubo correlaciones moderadas a bajas con significación estadística P <0,05.ConclusionesLa escala Teherán-Morales, para la graduación del color es útil en la detección del color, correlacionándose moderadamente con la valoración subjetiva de expertos en nervio óptico, teniendo su mejor desempeño en neuropatía óptica con discos muy pálidos. Sin embargo, en discos ópticos normales o glaucomatosos, tiene baja correlación, comparada con la valoración clínica subjetiva. (AU)

BackgroundTo validate objectively the proposed Teherán-Morales's color grading scale, comparing to the subjective readings of specialists in optic nerve photography.MethodsConcordance study and diagnostic tests, in which 150 photographs of the optic nerve were evaluated, from three groups, glaucomatous neuropathy, neuropathy of other origin and control group with the Teherán-Morales's color scale and the analysis of three experts in optic nerve. Spearman's Rho correlation was performed between both analysis methods.ResultsIn the analysis of all the photographs using Spearman's Rho, we found moderate correlations that were statistically significant P <.0001, the highest was in the temporal quadrant by observer 1 (r=0.650 95% CI 0.546 to 0.733). In photographs of optic neuropathy, the correlations become moderately high, and statistically significant P <.0001, the highest correlation was for the temporal quadrant by observer 1 (r=0.772 95% CI 0.626 to 0.865). In the glaucoma and normal eyes groups, there were moderate to low correlations with statistical significance P <.05.ConclusionsThe Teherán-Morales's scale, for color grading, is useful in detecting color, correlates moderately with the subjective assessment of experts in the optic nerve having its best performance in optic neuropathy with very pale discs. However, in normal or glaucomatous optic discs, it has a low correlation, compared to the subjective clinical assessment. (AU)

Expression of gp120 as surrogate marker in HIV infection / Expresión de gp120 como marcador de progresión en la infección por VIH

Ninety seven patients infected with HIV -1 were studied to evaluate the expression of gp120 in peripheral blood CD4+ T lymphocytes as a surrogate marker of disease progression, analyzing correlation of it with viral load, T cell subsets, expression of activation markers, HAAR T and clinical signs and symptoms. In patients who had not received any antiretroviral therapy (naive), expression of gp120 had a positive correlation with expression of CD95 in CD4+ T lymphocytes (p=0.0409) and a negative correlation with CD4+ T lymphocytes percentage (p=0.0183) and absolute values (p=0.0165), and with percentage of naüve CD4+ T cells (p=0.0126). In patients under highly active antiretroviral therapy (HAAR T) those correlations were not present. Expression of gp 120 had good correlations with some known surrogate markers of disease progression in naüve patients, but its low level of expression and the fact that those correlations disappear when HAAR T is initiated, limit the use of it as an independent surrogate marker.

Se estudiaron 97 pacientes infectados con VIH-1 para determinar gp120 en células TCD4+ de sangre periférica como un marcador de progresión de enfermedad y su correlación con carga viral, subpoblaciones de células T, marcadores de activación, terapia antiretroviral, síntomas y signos clínicos. En los pacientes quienes no habían recibido terapia antiretroviral (vírgenes), la expresión de gp120 tenía una correlación positiva con la expresión de CD95 en los linfocitos TCD4+: (p=0,0409) y una correlación negativa con el porcentaje de linfocitos TCD4+ (p=0,0183) con los valores absolutos (p=0.0165) y con el porcentaje de células TCD4+ vírgenes (p=0.0126). En los pacientes con alta terapia antiretroviral estas correlaciones no estaban presentes. La expresión de gp120 tuvo buena correlación con algunos marcadores de progresión de enfermedad en pacientes vírgenes, pero su bajo nivel de expresión y el hecho de que esta correlación desaparece cuando la terapia antiretroviral es iniciada, limita su uso como marcador independiente de progresión.