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1.
Int Ophthalmol ; 38(1): 11-18, 2018 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-28035499

RESUMEN

AIM: To report the clinical features and outcome of patients with presumed tubercular uveitis (TBU). METHODS: Retrospective analysis of patients with presumed TBU at a tertiary referral eye care centre in Singapore between 2007 and 2012 was done. Main outcome measures were failure of complete resolution of uveitis or recurrence of inflammation. RESULTS: Fifty three patients with mean age of 44.18 ± 15.26 years with 54.72% being males were included. 19 (35.85%) had bilateral involvement, with panuveitis and anterior uveitis being the most common presentations. 36 (67.92%) patients received antitubercular therapy (ATT), and 28 received concurrent systemic steroids. 15 (28.30%) eyes of 11 (30.55%) patients in the ATT group and 4 (21.05%) eyes of 3 (17.64%) patients in the non-ATT group had treatment failure (p value = 0.51). CONCLUSION: The use of ATT, with or without concurrent corticosteroid, may not have a statistically significant impact in improving treatment success in patients with presumed TBU.


Asunto(s)
Antituberculosos/uso terapéutico , Tuberculosis Ocular/tratamiento farmacológico , Uveítis/tratamiento farmacológico , Adolescente , Corticoesteroides/uso terapéutico , Adulto , Anciano , Anciano de 80 o más Años , Niño , Quimioterapia Combinada , Femenino , Humanos , Masculino , Persona de Mediana Edad , Panuveítis/tratamiento farmacológico , Recurrencia , Estudios Retrospectivos , Singapur , Centros de Atención Terciaria/estadística & datos numéricos , Resultado del Tratamiento , Adulto Joven
2.
Cytokine ; 84: 56-62, 2016 08.
Artículo en Inglés | MEDLINE | ID: mdl-27239802

RESUMEN

PURPOSE: This study aims to perform comprehensive longitudinal immune factor analysis of aqueous humor in relation to the aqueous CMV viral load and systemic CD4 counts during treatment of patients with co-infection of HIV and CMVR. METHODS: Aqueous humor samples were collected from 17 HIV-positive patients with CMVR scheduled to undergo weekly intravitreal ganciclovir therapy as part of the prospective CMV Retinitis Intravitreal Ganciclovir Singapore Study (CRIGSS) over the course of 1year. Full data across all the 4 time points was obtained and analyzed for CMV DNA viral load, 41 cytokine and chemokine factors using real-time PCR with the FlexMAP 3D (Luminex®) platform and assessed using the Milliplex Human Cytokine® kit. RESULTS: The following immune factors (Spearman correlation coefficient r value in parenthesis, p<0.05) showed strong correlation with CMV DNA load in the aqueous - MCP-1 (0.80, IFN-g (0.83), IP-10 (0.82), IL-8 (0.81), fractalkine (0.73), RANTES (0.68) - while the following showed moderate correlation - PDGF-AA (0.58), Flt-3L (0.59) and G-CSF (0.53). Only PDGF-AA revealed a statistically significant negative correlation with serum CD4 levels (r=-0.74). CONCLUSION: Immune factors that correlate with intraocular CMV DNA load are identified. They are indicative of a Th1 and monocyte-macrophage mediated response, and exhibit a decreasing trend longitudinally through the course of treatment. These factors may be an important new consideration in individualizing the treatment of patients with CMVR.


Asunto(s)
Humor Acuoso/inmunología , Humor Acuoso/virología , Retinitis por Citomegalovirus/inmunología , Retinitis por Citomegalovirus/virología , Factores Inmunológicos/inmunología , Adulto , Antivirales/uso terapéutico , Linfocitos T CD4-Positivos/efectos de los fármacos , Linfocitos T CD4-Positivos/inmunología , Coinfección/tratamiento farmacológico , Coinfección/inmunología , Coinfección/virología , Citomegalovirus/efectos de los fármacos , Citomegalovirus/inmunología , Infecciones por Citomegalovirus/tratamiento farmacológico , Infecciones por Citomegalovirus/inmunología , Infecciones por Citomegalovirus/virología , Retinitis por Citomegalovirus/tratamiento farmacológico , Femenino , Ganciclovir/uso terapéutico , Factor Estimulante de Colonias de Granulocitos/inmunología , VIH/inmunología , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/inmunología , Infecciones por VIH/virología , Humanos , Interleucina-8/inmunología , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Estudios Prospectivos , Singapur
3.
Cytokine ; 88: 77-84, 2016 12.
Artículo en Inglés | MEDLINE | ID: mdl-27585367

RESUMEN

PURPOSE: To investigate the tear cytokine profile in HIV patients with dry eye disease (DED) and study the association between the severity of ocular inflammatory complications and tear cytokines levels. We postulate that HIV-mediated inflammation may be the underlying pathogenic mechanism for HIV-associated DED. METHODS: The current prospective case-control study compared tear film cytokine profiles in DED patients with HIV infection (n=34) and age/gender-matched DED patients without HIV infection [controls (n=32)]. Participants were recruited from tertiary referral eye care centre and communicable disease clinics, Singapore. Ocular surface health was documented using tear film, Schirmer's test, corneal staining, and conjunctival injection measurements. Tear samples were collected using Schirmer's strips and analysed for the levels of 41 cytokines using Luminex bead assay. Logistic regression models were performed to determine correlation and significance. RESULTS: Among the 41 cytokines analysed, statistically significant differences were observed in the mean values of epithelial growth factor (EGF), growth related oncogene (GRO) and interferon gamma-induced protein 10 (IP-10). EGF and IP-10 levels were higher and GRO levels were lower in the tears of DED patients with HIV infection compared to DED patients without HIV infection. No significant association was found between varying levels of ocular surface parameters and cytokine concentrations in HIV patients with DED (p>0.05). CONCLUSIONS: EGF and IP-10 were significantly elevated and GRO levels were lower in the tear profile of HIV patients with DED compared to immunocompetent patients with DED. This study suggests a novel cytokine driven paradigm for ocular inflammatory complications of HIV infection. Additional studies in large organised cohorts can validate the results.


Asunto(s)
Citocinas/metabolismo , Síndromes de Ojo Seco/metabolismo , Infecciones por VIH/metabolismo , VIH-1 , Lágrimas/metabolismo , Adulto , Síndromes de Ojo Seco/etiología , Femenino , Infecciones por VIH/complicaciones , Humanos , Masculino , Persona de Mediana Edad , Estudios Prospectivos
4.
BMC Ophthalmol ; 14: 150, 2014 Nov 27.
Artículo en Inglés | MEDLINE | ID: mdl-25429876

RESUMEN

BACKGROUND: This study reports the surgical outcomes of acquired immunodeficiency syndrome (AIDS) patients with Cytomegalovirus retinitis (CMVR) -related retinal detachments(RD) in an Asian population. METHODS: Review of CMVR characteristics, surgical outcomes and complications in 19 eyes with CMVR-related RD that underwent surgery from January 2000 to June 2011. RESULTS: CMVR was inactive in 73.7% of the eyes at time of surgery. Anatomical success was achieved in 14 eyes. Seven eyes (36.8%) had improvement of two or more lines in visual acuity (VA) and 8 eyes (42.1%) maintained VA. Thirteen eyes presented with worse than 6/120 vision, with 30.8% of them achieving ambulatory vision or better. Five eyes had re-detachments. Median durations from CMVR and immune recovery uveitis (IRU) diagnoses to RD were 2.7 and 1.0 months respectively. CONCLUSIONS: Surgery for CMVR-related RD is associated with good anatomical outcomes with most eyes maintaining or having improved vision. CMVR lesion size of <50% retinal area is associated with better outcomes. Eyes with CMVR and IRU require close monitoring for RD.


Asunto(s)
Infecciones Oportunistas Relacionadas con el SIDA/complicaciones , Síndrome de Inmunodeficiencia Adquirida/complicaciones , Retinitis por Citomegalovirus/complicaciones , Desprendimiento de Retina/cirugía , Infecciones Oportunistas Relacionadas con el SIDA/tratamiento farmacológico , Infecciones Oportunistas Relacionadas con el SIDA/etnología , Síndrome de Inmunodeficiencia Adquirida/tratamiento farmacológico , Síndrome de Inmunodeficiencia Adquirida/etnología , Adulto , Terapia Antirretroviral Altamente Activa , Antivirales/uso terapéutico , Pueblo Asiatico , Recuento de Linfocito CD4 , Retinitis por Citomegalovirus/tratamiento farmacológico , Retinitis por Citomegalovirus/etnología , Endotaponamiento , Femenino , Ganciclovir/análogos & derivados , Ganciclovir/uso terapéutico , Humanos , Coagulación con Láser , Masculino , Persona de Mediana Edad , Desprendimiento de Retina/etiología , Desprendimiento de Retina/fisiopatología , Curvatura de la Esclerótica , Resultado del Tratamiento , Valganciclovir , Agudeza Visual/fisiología , Vitrectomía
5.
Int J Health Care Qual Assur ; 27(4): 347-54, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-25076608

RESUMEN

PURPOSE: The purpose of this paper is to determine the safety of substituting the first day post-operative review after routine cataract surgery (phacoemulsification) with a telephone survey. DESIGN/METHODOLOGY/APPROACH: Prospective non-randomised cohort study. A standardised questionnaire of five common ocular symptoms (general condition, vision, eye pain, headache, nausea or vomiting) was administered by a trained nurse on the first post-operative day. The patients were reviewed in clinic two to 14 days later. Patient charts were retrospectively reviewed for complications (endophthalmitis, raised intra-ocular pressure, wound leaks and uveitis) requiring deviation from standard treatment. FINDINGS: Over 13 months, 256 eyes of 238 patients underwent uncomplicated phacoemulsification by four consultant surgeons. Only one patient reported poor general condition, blurred vision and eye pain. She was subsequently found to have corneal oedema and raised intra-ocular pressure when recalled for an earlier review. Best corrected visual acuity better than 20/40 was achieved in 80.5 per cent of patients. There were no other post-operative complications noted from medical records review. RESEARCH LIMITATIONS/IMPLICATIONS: Non-randomised nature, skewed surgical expertise, lack of a control group and patient experience data. In all, 22 patients (9.2 per cent) were also uncontactable for the telephone interview. PRACTICAL IMPLICATIONS: A nurse-administered telephone survey seemed to be a safe and effective alternative to first day post-operative review after routine phacoemulsification. The survey also enabled the detection of serious post-operative complications. The first day post-operative hospital visit may be safely substituted in a selected patient population with greater patient convenience achieved and liberation of clinic resources. ORIGINALITY/VALUE: This is the first study which utilises a standardised questionnaire as a form of post-operative review in an Asian population.


Asunto(s)
Enfermeras y Enfermeros , Facoemulsificación/efectos adversos , Complicaciones Posoperatorias/epidemiología , Encuestas y Cuestionarios , Teléfono , Adulto , Anciano , Anciano de 80 o más Años , Instituciones de Atención Ambulatoria , Femenino , Humanos , Masculino , Persona de Mediana Edad , Periodo Posoperatorio , Estudios Prospectivos , Singapur
6.
Cytokine ; 64(2): 541-7, 2013 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-24008078

RESUMEN

PURPOSE: Cytomegalovirus retinitis (CMVR) is the most common opportunistic ocular infection in patients with AIDS. Comprehensive analysis of aqueous humor for immunologic factors has yet to be performed in patients with CMVR. This study aims to perform comprehensive immune factor analysis of aqueous humor in CMVR patients to determine the presence of any characteristic immunological profile in the aqueous humor. METHODS: Comparative prospective analysis of aqueous humor was performed across three groups: (1) AIDS patients with CMVR (CMVR group) (n=20), (2) HIV-positive patients without CMVR (HIV group) (n=6) and (3) patients undergoing cataract surgery with no underlying ocular infection or inflammation (control group) (n=11). At least 100µl of aqueous humor was drawn from all subjects and fractionated prior to analysis for 41 cytokines, chemokines and growth factors with the FlexMAP 3D (Luminex®) platform using the Milliplex Human Cytokine® kit. RESULTS: Three distinct immunologic signatures were observed in the aqueous humor of the three groups. Statistically significant differences (p<0.05) were observed across the three groups with the HIV group having lower levels and CMVR group having raised levels for the following factors: IP-10, fractalkine, PDGF-AA, G-CSF, Flt-3L and MCP-1. CONCLUSION: Aqueous humor though clinically quiescent in CMVR revealed a unique immunologic signature consistent with a combined Th-1 and monocyte-macrophage mediated response. Subsequent longitudinal analysis of aqueous cytokine levels of CMVR through the course of treatment would allow better understanding of the immunopathogenetic mechanisms of CMVR. This may also be used to better prognosticate the disease, predict complications and allow better assessment of treatment response and individualization of treatment in the future.


Asunto(s)
Humor Acuoso/metabolismo , Humor Acuoso/virología , Citocinas/metabolismo , Retinitis por Citomegalovirus/complicaciones , Retinitis por Citomegalovirus/metabolismo , Infecciones por VIH/complicaciones , Infecciones por VIH/metabolismo , Análisis de Varianza , Estudios de Casos y Controles , Retinitis por Citomegalovirus/inmunología , Demografía , Femenino , Infecciones por VIH/inmunología , Humanos , Masculino , Persona de Mediana Edad
7.
BMC Ophthalmol ; 13(1): 41, 2013 Aug 08.
Artículo en Inglés | MEDLINE | ID: mdl-23926885

RESUMEN

Investigations used to aid diagnosis and prognosticate outcomes in ocular inflammatory disorders are based on techniques that have evolved over the last two centuries have dramatically evolved with the advances in molecular biological and imaging technology. Our improved understanding of basic biological processes of infective drives of innate immunity bridging the engagement of adaptive immunity have formed techniques to tailor and develop assays, and deliver targeted treatment options. Diagnostic techniques are paramount to distinguish infective from non-infective intraocular inflammatory disease, particularly in atypical cases. The advances have enabled our ability to multiplex assay small amount of specimen quantities of intraocular samples including aqueous, vitreous or small tissue samples. Nevertheless to achieve diagnosis, techniques often require a range of assays from traditional hypersensitivity reactions and microbe specific immunoglobulin analysis to modern molecular techniques and cytokine analysis. Such approaches capitalise on the advantages of each technique, thereby improving the sensitivity and specificity of diagnoses. This review article highlights the development of laboratory diagnostic techniques for intraocular inflammatory disorders now readily available to assist in accurate identification of infective agents and appropriation of appropriate therapies as well as formulating patient stratification alongside clinical diagnoses into disease groups for clinical trials.


Asunto(s)
Técnicas de Diagnóstico Oftalmológico , Oftalmopatías/diagnóstico , Técnicas de Diagnóstico Oftalmológico/tendencias , Humanos , Uveítis/diagnóstico
8.
Telemed J E Health ; 19(8): 627-31, 2013 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-23756239

RESUMEN

BACKGROUND: Screening for cytomegalovirus retinitis (CMVR) is important in patients with acquired immune deficiency syndrome and low CD4(+) counts. However, many human immunodeficiency virus (HIV) patients lack access to specialist ophthalmological care. Telemedicine screening is a cost-effective method for screening these patients. We aimed to report the use of composite nine-field digital fundus photography (DFP) images for CMVR screening. We report its sensitivity and specificity in detecting CMVR and the level of agreement with gold-standard binocular indirect ophthalmoscopy. MATERIALS AND METHODS: An audit was performed on our national CMVR screening program that screened all HIV patients referred to the Ophthalmology Department at Tan Tock Seng Hospital, Singapore. All patients underwent retinal screening with DFP. Images were categorized as CMVR-positive, CMVR-negative, suspicious, or unreadable by blinded retinal specialists. Patients subsequently underwent dilated gold-standard indirect ophthalmoscopy by a different retinal specialist. Diagnoses were categorized as CMVR-positive, CMVR-negative, or unreadable. Sensitivity and specificity of retinal findings on DFP and kappa values for level of agreement between the two screening methods were calculated. RESULTS: Three hundred seventy screenings on 188 patients were performed. Twenty-three eyes diagnosed with CMVR on indirect ophthalmoscopy were also identified on DFP (100% sensitivity). A 99.9% specificity was achieved. The fundus photograph of one eye without CMVR was read as CMVR-positive because of an artifact, accounting for a false-positive. Kappa values ranged from 0.739 to 0.987. CONCLUSIONS: DFP is a sensitive and specific method of screening HIV patients for CMVR and has a high level of agreement with indirect ophthalmoscopy.


Asunto(s)
Retinitis por Citomegalovirus/diagnóstico , Fotograbar/métodos , Telemedicina , Adulto , Femenino , Infecciones por VIH/complicaciones , Humanos , Masculino , Auditoría Médica , Persona de Mediana Edad , Oftalmoscopía/métodos , Sensibilidad y Especificidad , Singapur
9.
Ophthalmology ; 119(3): 588-95, 2012 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-22137552

RESUMEN

OBJECTIVE: To report the clinical outcomes of highly active antiretroviral therapy (HAART)-naïve, human immunodeficiency virus (HIV)-positive patients with newly diagnosed cytomegalovirus (CMV) retinitis receiving intravitreal injections of a low-volume intermediate maintenance dose (1.0 mg/0.02 ml) of ganciclovir. DESIGN: Nonrandomized, retrospective, interventional series. PARTICIPANTS: A consecutive cohort of 34 eyes from 24 HAART-naïve patients with AIDS and diagnosed with CMV retinitis by retinal specialists at the Singapore Communicable Disease Centre. INTERVENTION: Patients received a maintenance dose of 1.0 mg/0.02 ml of intravitreal ganciclovir once weekly after standard induction therapy with 2.0 mg/0.04 ml of twice weekly intravitreal ganciclovir. MAIN OUTCOME MEASURES: Time to progression, visual acuity, and complications. Progression was observed using photographic documentation. RESULTS: The median time to progression was 152 days (mean, 380.1 days, 95% confidence interval, 240.8-519.4). The median follow-up was 95 days (mean, 207.9 days). Three eyes developed rhegmatogenous detachments, but there was no endophthalmitis after 1858 injections. Contralateral involvement of CMV retinitis occurred in 17.6% of the patients. The cost estimate for intravitreal injections over a 6-month period was 11.7% that of sustained-release implants for unilateral treatment and 11.1% that of daily continuous intravenous infusions and oral valganciclovir compared with bilateral treatments. CONCLUSIONS: Weekly low-volume, intermediate-dose (1.0 mg/0.02 ml) ganciclovir is an efficacious option in developing countries where newer options of sustained-release implants and oral valganciclovir are unavailable or prohibitively expensive. The regimen maintains a long time to progression, preserving vision while minimizing retinal toxicity complications.


Asunto(s)
Antivirales/administración & dosificación , Retinitis por Citomegalovirus/tratamiento farmacológico , Ganciclovir/administración & dosificación , Infecciones Oportunistas Relacionadas con el SIDA/tratamiento farmacológico , Infecciones Oportunistas Relacionadas con el SIDA/economía , Adulto , Terapia Antirretroviral Altamente Activa , Antivirales/economía , Retinitis por Citomegalovirus/economía , Progresión de la Enfermedad , Femenino , Estudios de Seguimiento , Ganciclovir/economía , Costos de la Atención en Salud , Humanos , Inyecciones Intravítreas , Masculino , Persona de Mediana Edad , Desprendimiento de Retina/economía , Desprendimiento de Retina/fisiopatología , Estudios Retrospectivos , Resultado del Tratamiento , Agudeza Visual/fisiología
10.
Retin Cases Brief Rep ; 16(2): 145-148, 2022 Mar 01.
Artículo en Inglés | MEDLINE | ID: mdl-31464822

RESUMEN

PURPOSE: We report a transgender patient with branch retinal artery occlusion who had secondary polycythemia from unregulated testosterone injections and review the literature on the mechanisms of supraphysiologic and standard doses of testosterone causing a hypercoagulable state. METHODS: Case report. RESULTS: A 45-year-old Chinese transgender man with no medical history presented with a 1-week history of a scotoma in his left eye vision. Ophthalmologic examination revealed retinal pallor and edema along the superotemporal arteriole in the left eye. Optical coherence tomography showed increased thickness of the inner retinal layers of the superotemporal retina. Fluorescein angiography demonstrated an arm-retina time of 1 minute and 43 seconds, with no vascular sheathing and capillary fallout. A diagnosis of left superotemporal branch retinal artery occlusion was made. Initial blood tests revealed a hemoglobin level of 19.3 g/dL (11.8-14.6 g/dL), hematocrit of 62% (34.3-43.0%), and erythrocytes of 6.56 × 1012/L (3.7-4.8 × 1012/L). He revealed later that he had been on weekly testosterone injections (testosterone enanthate 250-mg depot injection) since 2011. He was also exposed to a moderately high altitude, when his symptoms occurred, raising the possibility of worsening hypercoagulability resulting in his thrombotic event. CONCLUSION: To the best of our knowledge, this is the first documented case of a trans man who developed branch retinal artery occlusion after self-administering supraphysiological doses of testosterone. In a young patient with no history of cardiovascular risk factors who develops retinal arterial occlusion, other causes such as hypercoagulable syndromes must be excluded. This case warns of the dangers of unregulated testosterone use, especially at supraphysiologic doses, and the risks of thrombotic events from secondary polycythemia.


Asunto(s)
Policitemia , Oclusión de la Arteria Retiniana , Testosterona , Femenino , Angiografía con Fluoresceína , Humanos , Masculino , Persona de Mediana Edad , Policitemia/inducido químicamente , Oclusión de la Arteria Retiniana/diagnóstico por imagen , Testosterona/efectos adversos , Tomografía de Coherencia Óptica , Personas Transgénero
11.
J Acquir Immune Defic Syndr ; 90(2): 170-174, 2022 06 01.
Artículo en Inglés | MEDLINE | ID: mdl-35135974

RESUMEN

BACKGROUND: Longitudinal evidence on retinal microvasculature and subsequent systemic inflammatory alteration is lacking. We investigated the association between retinal microvasculature and immune response among patients with HIV/AIDS over a 9-month antiretroviral therapy. METHODS: We conducted a prospective cohort study on patients with HIV/AIDS at Singapore Communicable Disease Centre since June 2011. We recruited all eligible patients and then reviewed them every 3 months over a 9-month follow-up, including performing blood tests (CD4+/CD8+ T-cell counts and HIV viral load), blood pressure, anthropometry measurements, and retinal photography at each visit. We assessed retinal vascular indexes using a semiautomated computer-based program. Finally, we applied a linear mixed model to analyze associations between baseline retinal vascular indexes and 9-month changes of CD4+/CD8+ T-cell counts and HIV viral load throughout study observation, after adjusting for major confounders. RESULTS: We found that narrower arteriolar caliber (per 10 µm decrease), wider venular caliber (per 10 µm increase), and larger arteriolar branching angle (per 10° increase) in the retina assessed at baseline were significantly associated with 9-month reductions in CD4+ T-cell count by 52.97 cells/µL (P = 0.006), 33.55 cells/µL (P = 0.01), and 39.09 cells/µL (P = 0.008), accordingly. CONCLUSION: Patients with HIV/AIDS with a suboptimal retinal microvascular morphology tended to fail immune restoration undertaking a 9-month antiretroviral therapy.


Asunto(s)
Síndrome de Inmunodeficiencia Adquirida , Infecciones por VIH , Reconstitución Inmune , Síndrome de Inmunodeficiencia Adquirida/tratamiento farmacológico , Infecciones por VIH/tratamiento farmacológico , Humanos , Microvasos/fisiología , Estudios Prospectivos , Retina/fisiología
12.
Ocul Immunol Inflamm ; 30(1): 42-47, 2022 Jan 02.
Artículo en Inglés | MEDLINE | ID: mdl-32644842

RESUMEN

PURPOSE: To explore the all-cause mortality in patients with acquired immune deficiency syndrome (AIDS) and Cytomegalovirus (CMV) retinitis. METHODS: A retrospective cohort study of patients with CMV retinitis (CMVR) presented to a tertiary referral center in Singapore from January 1, 2004, through December 31, 2015. RESULTS: A total of 144 patients were studied (87 survived, 11 lost to follow up, 46 died). Patients with bilateral CMVR and six-month follow up CD4 + T cell count < 50 cells/mm3 have shorter time to mortality, compared to patients with CD4 + T cell count > 50 cells/mm3 (p < .001) and unilateral disease (p = .043). Baseline CD4 + T cell count, size and zone of initial primary retinitis lesions, recurrences of retinitis, and timing of combined antiretroviral therapy (cART) are not significantly associated with mortality. CONCLUSION: Bilateral ocular involvement and lack of immune recovery in patients with AIDS and CMVR are associated with shorter survival time.


Asunto(s)
Infecciones Oportunistas Relacionadas con el SIDA , Síndrome de Inmunodeficiencia Adquirida , Retinitis por Citomegalovirus , Infecciones Oportunistas Relacionadas con el SIDA/diagnóstico , Infecciones Oportunistas Relacionadas con el SIDA/tratamiento farmacológico , Síndrome de Inmunodeficiencia Adquirida/complicaciones , Síndrome de Inmunodeficiencia Adquirida/tratamiento farmacológico , Recuento de Linfocito CD4 , Linfocitos T CD4-Positivos , Retinitis por Citomegalovirus/complicaciones , Retinitis por Citomegalovirus/diagnóstico , Retinitis por Citomegalovirus/tratamiento farmacológico , Humanos , Estudios Retrospectivos
13.
Retina ; 30(3): 390-8, 2010 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-20094013

RESUMEN

PURPOSE: The purpose of this study was to characterize the presentations, long-term outcomes, and visual prognostic factors in dengue-related maculopathy of 41 patients with dengue fever and impaired vision from dengue-related maculopathy in a retrospective noninterventional and observational series. METHODS: The medical records of patients with dengue-related maculopathy diagnosed over 18 months between July 2004 and December 2005 at The Eye Institute, Tan Tock Seng Hospital and Communicable Disease Center, Singapore, were reviewed and followed up for 24 months. Visual acuity and symptoms (presence of scotoma on automated visual fields and Amsler grid) were correlated with optical coherence tomography evaluation. RESULTS: Mean age was 28.7 years and there were more men (53.7%). The most common visual complaints were blurring of vision (51.2%) and central scotoma (34.1%). Most patients recovered best-corrected visual acuity >20/40. Optical coherence tomography showed 3 patterns of maculopathy: 1) diffuse retinal thickening; 2) cystoid macular edema; and 3) foveolitis. The visual outcome was independent of the extent of edema, but scotomata persisted longest in patients with foveolitis and shortest with those with diffuse retinal thickening. CONCLUSION: Dengue-associated ocular inflammation is an emerging ophthalmic condition and often involves the posterior segment. Prognosis is variable. Patients usually regain good vision but may retain persistent scotomata even at 2 years despite clinical resolution of the disease. Optical coherence tomography patterns in dengue maculopathy are useful for characterization, monitoring, and prognostication of the visual defect.


Asunto(s)
Dengue/diagnóstico , Infecciones Virales del Ojo/diagnóstico , Enfermedades de la Retina/diagnóstico , Escotoma/diagnóstico , Tomografía de Coherencia Óptica , Agudeza Visual/fisiología , Adolescente , Adulto , Niño , Dengue/fisiopatología , Infecciones Virales del Ojo/fisiopatología , Femenino , Estudios de Seguimiento , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Enfermedades de la Retina/fisiopatología , Estudios Retrospectivos , Escotoma/fisiopatología , Pruebas del Campo Visual , Campos Visuales/fisiología
14.
Ocul Immunol Inflamm ; 28(1): 92-99, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-30335550

RESUMEN

Purpose: To analyze the pattern of laboratory investigations of uveitis at a tertiary referral eye care center in Singapore.Methods: Retrospective analysis of 2040 uveitis cases from the Ocular Autoimmune Systemic Inflammatory Infectious Study (OASIS) database over a 12-year period (2004 - 2015).Results: Patients with retinal vasculitis (RV) had the most tests utilized per patient (6.79), followed by intermediate uveitis (IU) (5.25), panuveitis (Pan) (5.12), posterior uveitis (PU) (4.17), anterior uveitis (AU) (2.75), and keratouveitis (KU) (1.10). The most frequently utilized test for infective etiology were the VDRL (41.3%), Syphilis IgG (29.5%), and T-SPOT.TB (24.6%). For autoimmune tests, ANA was most utilized (18.2%), followed by anti-dsDNA (14.8%), and HLA-B27 (12.4%).Conclusion: There was high utilization of autoimmune tests such as ANA, anti-dsDNA, RF, and ANCA, despite its limited yield. Rationalization of investigations in patients with ocular inflammation via a stepladder approach may help optimize the use of limited resources.


Asunto(s)
Enfermedades Autoinmunes/epidemiología , Infecciones del Ojo/epidemiología , Centros de Atención Terciaria , Uveítis/epidemiología , Enfermedades Autoinmunes/complicaciones , Infecciones del Ojo/etiología , Femenino , Humanos , Masculino , Persona de Mediana Edad , Morbilidad/tendencias , Estudios Retrospectivos , Singapur/epidemiología , Uveítis/etiología
15.
Ocul Immunol Inflamm ; 27(1): 89-98, 2019.
Artículo en Inglés | MEDLINE | ID: mdl-28991501

RESUMEN

PURPOSE: To report the pattern of posterior and panuveitis at a tertiary referral center in Singapore. METHODS: Subgroup retrospective analysis of 334 new posterior and panuveitis cases, from the Ocular Autoimmune Systemic Inflammatory Infectious Study (OASIS) database. Descriptive analysis was performed and visual outcome and complications were reported. RESULTS: The etiology for posterior uveitis and panuveitis was infectious in 162 patients (48.5%), non-infectious in 144 patients (43.1%), and idiopathic in 28 patients (8.4%). More patients with bilateral disease had a non-infectious etiology (n = 82, 50.9%) (p = 0.012). The most common complication was epiretinal membrane (n = 20, 12.3%) for the infectious group and cystoid macular edema (n = 12, 8.3%) for the non-infectious group. CONCLUSIONS: The proportion of etiologies in our cohort varies from other studies. Understanding the variations and demographic associations allows the diagnosis and management of posterior and panuveitis to be further improved.


Asunto(s)
Enfermedades Autoinmunes/complicaciones , Infecciones del Ojo/complicaciones , Panuveítis/etiología , Uveítis Posterior/etiología , Adolescente , Adulto , Anciano , Anciano de 80 o más Años , Antibacterianos/uso terapéutico , Antivirales/uso terapéutico , Enfermedades Autoinmunes/diagnóstico , Enfermedades Autoinmunes/tratamiento farmacológico , Niño , Infecciones del Ojo/diagnóstico , Infecciones del Ojo/tratamiento farmacológico , Femenino , Glucocorticoides/uso terapéutico , Humanos , Inmunosupresores/uso terapéutico , Masculino , Persona de Mediana Edad , Panuveítis/diagnóstico , Panuveítis/tratamiento farmacológico , Estudios Retrospectivos , Singapur , Centros de Atención Terciaria , Uveítis Posterior/diagnóstico , Uveítis Posterior/tratamiento farmacológico , Agudeza Visual/fisiología
16.
Ocul Immunol Inflamm ; 26(5): 732-746, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-27918224

RESUMEN

PURPOSE: To report the epidemiology and classification of ocular inflammation at a tertiary eye care center in Singapore. METHODS: Retrospective cohort study of the clinical records of consecutive new cases from the Ocular Autoimmune Systemic Inflammatory Infectious Study (OASIS) database from 2004-2015. RESULTS: A total of 2200 patients were studied from the OASIS database. The most common anatomic diagnosis was anterior uveitis (55.9%), posterior uveitis (17.5%), panuveitis (9.6%), and intermediate uveitis (4.7%). In addition, scleritis (6.1%), keratouveitis (2.8%), retinal vasculitis (2.2%), and episcleritis (1.2%) were observed. Etiology was established in 65.1%, with 35.2% of patients associated with non-infectious etiologies. The most common etiologies found were presumed tuberculosis (7.2%), followed by cytomegalovirus infection (6.9%), herpetic infection (6.3%), HLA-B27-associated anterior uveitis (4.2%), and ankylosing spondylitis (3.8%). CONCLUSIONS: The pattern of ocular inflammation in Singapore has similarities with both Western and Asian populations. Anterior uveitis was the most common, with non-infectious etiologies being slightly more common than infectious etiologies.


Asunto(s)
Enfermedades Autoinmunes/epidemiología , Infecciones del Ojo/epidemiología , Uveítis/epidemiología , Adolescente , Adulto , Distribución por Edad , Anciano , Enfermedades Autoinmunes/clasificación , Niño , Preescolar , Infecciones del Ojo/clasificación , Femenino , Humanos , Lactante , Recién Nacido , Masculino , Persona de Mediana Edad , Morbilidad/tendencias , Estudios Retrospectivos , Distribución por Sexo , Singapur/epidemiología , Centros de Atención Terciaria , Uveítis/clasificación , Adulto Joven
17.
Ocul Immunol Inflamm ; 26(8): 1289-1296, 2018.
Artículo en Inglés | MEDLINE | ID: mdl-29020481

RESUMEN

PURPOSE: To describe clinical findings and outcomes for ocular toxoplasmosis in an international multicenter collaborative study. METHODS: Retrospective analysis of 190 patients diagnosed with ocular toxoplasmosis from three study sites (Brazil, India, and Singapore). RESULTS: There were 93 (48.9%) females with a mean age of 32.8 years. The most common symptoms were isolated blurring of vision (36.8%), followed by blurring of vision with floaters (21.1%). Treatment regimens varied largely from monotherapy to multiple combination therapies. Final visual acuity of ≥20/40 was achieved in 106 (74.2%) patients. In a median follow-up period of 31 weeks (range 12-749 weeks), 83/190 (43.7%) patients suffered a relapse. CONCLUSIONS: There appears to be geographical variation in the presentation of ocular toxoplasmosis. Compared to previous studies, we did not observe the '"dual peak" phenomenon of chronic and active disease based on age at presentation, and there was less bilateral and macular involvement (but more peripheral involvement).


Asunto(s)
Toxoplasmosis Ocular/diagnóstico , Trastornos de la Visión/diagnóstico , Adolescente , Adulto , Anciano , Anticuerpos Antiprotozoarios/sangre , Antiprotozoarios/uso terapéutico , Niño , Preescolar , Femenino , Geografía , Humanos , Inmunoglobulina G/sangre , Inmunoglobulina M/sangre , Masculino , Persona de Mediana Edad , Pirimetamina/uso terapéutico , Estudios Retrospectivos , Sulfadiazina/uso terapéutico , Toxoplasmosis Ocular/tratamiento farmacológico , Combinación Trimetoprim y Sulfametoxazol/uso terapéutico , Clima Tropical , Uveítis/diagnóstico , Uveítis/tratamiento farmacológico , Agudeza Visual
18.
Ocul Immunol Inflamm ; 25(4): 535-539, 2017 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-27082491

RESUMEN

PURPOSE: To investigate the surgical outcomes, complications and postoperative progression in HIV patients undergoing cataract surgery in a teaching hospital. METHODS: A retrospective cohort study of patients with HIV/AIDS who had cataract surgery from January 2000 until December 2011 at a tertiary referral multidisciplinary hospital in Singapore. RESULTS: We identified 44 eyes from 29 patients. Preoperatively, 41.3% had no ophthalmic manifestations of HIV/AIDS, while 16 eyes had quiescent cytomegalovirus retinitis (CMVR). Postoperatively, 1 eye developed new CMVR, while 1 eye had reactivation of previous CMVR. Of eyes with new or previous CMVR, 1 eye developed rhegmatogenous retinal detachment (RD) postoperatively. Only 3 eyes had prolonged postoperative inflammation. There were no cases of endophthalmitis or cystoid macular edema. Postoperative improvement of at least two Snellen lines was achieved in 86.6% of eyes. CONCLUSIONS: Cataract surgery in HIV patients is generally safe, regardless of CD4 count, but their general and ocular health should be optimized preoperatively.


Asunto(s)
Síndrome de Inmunodeficiencia Adquirida/complicaciones , Catarata/complicaciones , Implantación de Lentes Intraoculares , Facoemulsificación , Síndrome de Inmunodeficiencia Adquirida/fisiopatología , Adulto , Anciano , Recuento de Linfocito CD4 , Catarata/fisiopatología , Retinitis por Citomegalovirus/complicaciones , Retinitis por Citomegalovirus/fisiopatología , Femenino , Humanos , Complicaciones Intraoperatorias , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias , Seudofaquia/fisiopatología , Estudios Retrospectivos , Singapur , Centros de Atención Terciaria , Resultado del Tratamiento , Agudeza Visual/fisiología
19.
Data Brief ; 11: 152-154, 2017 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-28224132

RESUMEN

The data presented in this article shows the longitudinal analysis of tear fluid cytokine profiles, blood CD4 and CD8 counts and HIV viral load in 34 dry eye patients with HIV infection during the HAART therapy. Clinical samples were collected from HIV patients with dry eye disease at the time of presentation to the clinic (visit 1), three months (visit 2) and 6 months (visit 3) after the presentation. At each time point tear samples were evaluated for 41 cytokines using Luminex bead based multiplex assay and blood samples were tested for HIV viral load and CD4 and CD8 counts.

20.
Data Brief ; 10: 14-16, 2017 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-27942559

RESUMEN

The tear film cytokine profiling data in this article was obtained from a prospective case-control study with a sample size of 34 dry eye disease (DED) patients with HIV infection and 32 DED patients without HIV infection, see "A distinct cytokines profile in tear film of dry eye disease (DED) patients with HIV infection" (R. Agrawal, P.K. Balne, A. Veerappan, V.B. Au, B. Lee, E. Loo, A. Ghosh, L. Tong, S.C. Teoh, J. Connolly, P. Tan, 2016) [1]. Tear samples were collected from all the subjects using Schirmer׳s strips and cytokine profiling was done using the Luminex bead based multiplex assay with a panel of 41 analytes. The cytokine level differences in each group of subjects were analyzed using logistic regression models.

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