RESUMEN
PURPOSE OF REVIEW: This article intends to briefly discuss AIDS, summarize the current literature on immune recovery uveitis, describe its ocular manifestations and complications, and tackle its complex management. RECENT FINDINGS: The clinical picture of immune recovery uveitis is still evolving. Up to today, there are still no definite criteria for immune recovery uveitis, and although closely associated with cytomegalovirus retinitis and HIV/AIDS, there are several cases of similar intraocular response in non-HIV patients. The exact pathology for this paradoxical inflammatory reaction remains unclear; however, there is an interest in identifying biomarkers to determine underlying mechanisms and identify patients at risk. The management of this disease also remains a challenge and no standardized treatment approach exists currently. SUMMARY: Immune recovery uveitis is an important cause of visual morbidity particularly in HIV/AIDS patients receiving highly active antiretroviral. It is a paradoxical reaction that is frequently associated with a prior cytomegalovirus retinitis infection. Although it can be a transient and self-limiting process, there is a complex decision on the timing of antiviral treatment and the initiation of antiretroviral treatment to prevent immune recovery uveitis. Furthermore, a substantial challenge arises in balancingtreatment decisions for complications in refractory cases.
Asunto(s)
Uveítis , Humanos , Uveítis/inmunología , Uveítis/tratamiento farmacológico , Uveítis/diagnóstico , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/inmunología , Infecciones por VIH/complicaciones , Terapia Antirretroviral Altamente Activa , Retinitis por Citomegalovirus/tratamiento farmacológico , Retinitis por Citomegalovirus/diagnóstico , Retinitis por Citomegalovirus/inmunología , Infecciones Oportunistas Relacionadas con el SIDA/inmunología , Infecciones Oportunistas Relacionadas con el SIDA/tratamiento farmacológico , Infecciones Oportunistas Relacionadas con el SIDA/diagnóstico , Reconstitución Inmune , Síndrome de Inmunodeficiencia Adquirida/tratamiento farmacológico , Síndrome de Inmunodeficiencia Adquirida/inmunología , Síndrome de Inmunodeficiencia Adquirida/complicacionesRESUMEN
BACKGROUND: Acquired human cytomegalovirus (CMV) is a noteworthy disease in infants. This case study will highlight the influence of early diagnosis of CMV retinitis (CMVR) on avoid visual impairment. CLINICAL FINDINGS: We describe a preterm female infant with a birth weight of 2060 gr that was admitted for tracheostomy placement due to hypoxic-ischemic encephalopathy. There were no signs of CMV infection or sepsis in laboratory results upon admission such as serology (IgG, IgM antibodies), Toxoplasma gondii , Rubella virus, Herpes simplex virus, CMVR and urine polymerase chain reaction (PCR). PRIMARY DIAGNOSIS: Incidentally, upon screening for retinopathy of prematurity, diffuse occlusive vasculitis was detected in the retinal image on the 112th day of life. INTERVENTION: Intravenous and intraocular ganciclovir were administered for 4 weeks. OUTCOMES: In the follow-up visit 6 weeks after discharge from the hospital, visual impairment was detected on both sides. PRACTICE RECOMMENDATIONS: This is a report of a case of acquired CMVR, a silent finding, as an uncommon complication in preterm neonates during the hospital stay. This diagnosis should be taken into consideration in preterm infants, since early diagnosis and treatment are crucial to avoid visual impairment.
Asunto(s)
Antivirales , Retinitis por Citomegalovirus , Ganciclovir , Recien Nacido Prematuro , Humanos , Recién Nacido , Femenino , Retinitis por Citomegalovirus/diagnóstico , Retinitis por Citomegalovirus/tratamiento farmacológico , Ganciclovir/uso terapéutico , Antivirales/uso terapéutico , Unidades de Cuidado Intensivo NeonatalRESUMEN
PURPOSE: To report continuing diffuse retinal dysfunction following resolution of immune reconstitution uveitis (IRU) in patients with cytomegalovirus retinitis (CMVR). METHODS: Retrospective case series describing two patients with IRU following CMVR who underwent serial fundus photography and macular optical coherence tomography. One patient had serial electrophysiology. RESULTS: Both patients had CMVR successfully treated with antiviral medication. The affected eyes later developed IRU that resolved with steroids. However, following resolution, chronic retinal damage was evidenced by ellipsoid line loss in one case and gradual optic disc cupping in the other. Electrophysiology in both cases revealed generalized retinal dysfunction worse in the eye with more severe IRU and demonstrated objectively the efficacy of treatment intervention in the patient with serial recordings. CONCLUSIONS: Patients with IRU following CMV retinitis may have continuing diffuse retinal dysfunction despite apparent recovery and normal visual acuity. An aggressive approach to inflammation control may be warranted in such patients.
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Retinitis por Citomegalovirus , Reconstitución Inmune , Uveítis , Humanos , Retinitis por Citomegalovirus/diagnóstico , Retinitis por Citomegalovirus/tratamiento farmacológico , Retinitis por Citomegalovirus/etiología , Estudios Retrospectivos , ElectrorretinografíaRESUMEN
PURPOSE: To explore the clinical features and outcomes of cytomegalovirus retinitis (CMVR) in patients with HIV and non-HIV. METHODS: This retrospective cohort study included all patients with CMVR in National Taiwan University Hospital from 2013 to 2018. Demographic data, clinical characteristics, CMVR recurrence, and overall survival were compared between the HIV and non-HIV groups. Generalized estimating equation models were implemented to analyze the risk factors of poor visual prognosis. The Kaplan-Meier survival analysis was performed to investigate recurrence and survival. RESULTS: A total of 66 patients (95 eyes) with CMVR were enrolled, with no significant differences between the HIV (41 patients; 61 eyes) and non-HIV (25 patients; 34 eyes) groups in initial/final visual acuity, lesion area, or viral loads. Poor visual outcome was associated with poor initial visual acuity, retinal detachment, and a higher plasma cytomegalovirus titer. The HIV group had significantly longer survival rate ( P = 0.033) and lower recurrence rate ( P = 0.01) than the non-HIV group, and it also presented with better prognosis in recurrence-free survival analysis ( P = 0.01). CONCLUSION: Patients with CMVR without HIV had higher mortality and recurrence rates than the HIV group. Risk factors of poor visual outcome included poor initial visual acuity, retinal detachment, and a high plasma cytomegalovirus titer.
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Retinitis por Citomegalovirus , Infecciones por VIH , Desprendimiento de Retina , Humanos , Retinitis por Citomegalovirus/diagnóstico , Retinitis por Citomegalovirus/tratamiento farmacológico , Retinitis por Citomegalovirus/patología , Infecciones por VIH/complicaciones , Pronóstico , Estudios Retrospectivos , Trastornos de la VisiónRESUMEN
PROPOSE: A screening protocol for cytomegalovirus retinitis (CMVR) by fundus photography was generated, and the diagnostic accuracy of machine learning technology for CMVR screening in HIV patients was investigated. METHODS: One hundred sixty-five eyes of 90 HIV-positive patients were enrolled and evaluated for CMVR with binocular indirect ophthalmoscopy. Then, a single central field of the fundus image was recorded from each eye. All images were then interpreted by both machine learning models, generated by using the Keras application, and by a third-year ophthalmology resident. Diagnostic performance of CMVR screening using a machine learning model and the third-year ophthalmology resident were analyzed and compared. RESULTS: Machine learning model, Keras application (VGG16), provided 68.8% (95% confidence interval [CI] = 50%-83.9%) sensitivity and 100% (95% CI = 97.2%-100%) specificity. The program provided accuracy of 93.94%. However, the sensitivity and specificity for the third-year ophthalmology grading were 67.7% (95% CI = 48.6%-83.3%) and 98.4% (95% CI = 94.5%-99.8%). The accuracy for CMVR classification was 89.70%. When considering for sight-threatening retinitis in Zone 1 and excluded Zones 2 and 3, the machine learning model provided high sensitivity of 88.2% (95% CI = 63.6%-98.5%) and high specificity of 100% (95% CI = 97.2%-100%). CONCLUSION: This study demonstrated the benefit of the machine learning model VGG16, which provided high sensitivity and specificity for detecting sight-threatening CMVR in HIV-positive patients. This model is a useful tool for ophthalmologists in clinical practice for preventing blindness from CMVR, especially during the Coronavrus Disease 2019 pandemic.
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Retinitis por Citomegalovirus , Infecciones por VIH , Retinitis por Citomegalovirus/diagnóstico , Humanos , Aprendizaje Automático , Oftalmoscopía/métodos , TecnologíaRESUMEN
BACKGROUND: To report a very rare acute cystoid macular oedema following ganciclovir injection in patients receiving allogeneic haematopoietic stem cell transplantation. CASE PRESENTATION: A 44-year-old male patient experienced vision loss in his left eye eight months after allogeneic stem cell transplantation. Ophthalmologic examination showed posterior retinopathy with retinal haemorrhage, a yellow necrotic border, and a vascular white sheath involved in the superior temporal retina but not the posterior pole. Cytomegalovirus DNA results in both plasma and ocular fluid were positive. All tests combined with the patient's medical history suggested that his ocular disease was cytomegalovirus retinitis. Consequently, he received a weekly ganciclovir vitreous injection. The disease was visibly controlled, and the fundus condition improved after the first three treatments. However, the patient had severe vision loss in his left eye and acute cystic oedema in the macula, while the original lesion was stable two hours after the fourth treatment. The macular oedema subsided significantly on the first day. Over the next week, daily OCT findings indicated that the patient's macular oedema gradually subsided and resolved completely by the second week, and his left eye vision partially improved. CONCLUSION: Macular oedema may occur in patients with cytomegalovirus retinitis, but it rarely occurs during treatment. In this case, the patient's macular oedema appeared and resolved quickly. Macular oedema in patients with cytomegalovirus retinitis receiving vitreous cavity injections of ganciclovir needs to be further studied and discussed.
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Retinitis por Citomegalovirus , Mácula Lútea , Edema Macular , Adulto , Retinitis por Citomegalovirus/diagnóstico , Retinitis por Citomegalovirus/tratamiento farmacológico , Retinitis por Citomegalovirus/patología , Ganciclovir/uso terapéutico , Humanos , Mácula Lútea/patología , Edema Macular/diagnóstico , Edema Macular/tratamiento farmacológico , Edema Macular/etiología , Masculino , Retina/patologíaRESUMEN
INTRODUCTION: The aim of this study was to evaluate the value of interleukin (IL)-8 in the development and management of cytomegalovirus retinitis (CMVR) in HIV-negative patients. METHODS: A retrospective case series from January 2014 to May 2018 was conducted. Forty patients (40 eyes) received intravitreal injection of ganciclovir (IVG). The aqueous levels of the cytomegalovirus (CMV) DNA and IL-8 in each follow-up visit were tested. The initial and final best-corrected visual acuity (BCVA), the course of treatment, the recurrence rate, and the occurrence of complications were recorded and analyzed. RESULTS: The aqueous value of IL-8 was significantly correlated with the aqueous level of the CMV DNA during treatment but was not associated with the BCVA or the number of IVG. No recurrence occurred in the condition in which a low aqueous IL-8 level was set as the endpoint of the treatment. CONCLUSION: In HIV-negative patients with CMVR, IL-8 was closely associated with CMV DNA concentration in the aqueous humor. The real-time aqueous level of IL-8 could be used as one of the evidences of disease recovery.
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Retinitis por Citomegalovirus , Infecciones por VIH , Antivirales/uso terapéutico , Retinitis por Citomegalovirus/diagnóstico , Retinitis por Citomegalovirus/tratamiento farmacológico , Retinitis por Citomegalovirus/etiología , Infecciones por VIH/complicaciones , Infecciones por VIH/tratamiento farmacológico , Humanos , Interleucina-8 , Estudios RetrospectivosRESUMEN
BACKGROUND: Cytomegalovirus (CMV) retinitis is a common opportunistic infection in patients with acquired immunodeficiency syndrome. The common funduscopic manifestations are haemorrhagic necrotising variety and granular variety. Frosted branch angiitis (FBA), as a special form, when it occurred after antiretroviral therapy(ART), could possibly be associated with immune reconstitution. We report a case of FBA secondary to CMV infection-associated unmasking immune reconstitution inflammatory syndrome (IRIS). CASE PRESENTATION: A 27-year-old man with human immunodeficiency virus infection developed FBA after 35 days of ART. The left Aqueous humour (AqH) tested positive for CMV DNA, and the patient was diagnosed with CMV retinitis. The degree of intraocular inflammation was reflected by increased levels of interleukin (IL)-6 and IL-8 in AqH. After anti-CMV treatment and continuous ART for several months, his FBA and vision significantly improved. CMV DNA became undetectable in the left AqH, and the IL-6 and IL-8 levels in AqH decreased. CONCLUSION: FBA could be a sign of CMV-associated unmasking IRIS. Anti-CMV treatment alone or combination with steroid treatment may be administered, depending on the changes in CMV DNA load and immunologic profile of AqH.
Asunto(s)
Retinitis por Citomegalovirus/complicaciones , Infecciones por VIH/complicaciones , Síndrome Inflamatorio de Reconstitución Inmune/diagnóstico , Vasculitis/diagnóstico , Síndrome de Inmunodeficiencia Adquirida/complicaciones , Adulto , Citomegalovirus/inmunología , Retinitis por Citomegalovirus/diagnóstico , Retinitis por Citomegalovirus/inmunología , Diagnóstico Diferencial , VIH , Infecciones por VIH/diagnóstico , Infecciones por VIH/inmunología , Infecciones por VIH/virología , Humanos , Síndrome Inflamatorio de Reconstitución Inmune/complicaciones , Masculino , Vasculitis/complicaciones , Vasculitis/inmunologíaRESUMEN
PURPOSE: Cytomegalovirus (CMV) antigenemia assays have been widely used as adjunct tests to diagnose tissue invasive CMV diseases, including cytomegalovirus retinitis (CMVR). In this study, we examined CMVR cases to assess the presence of CMV in sera and aqueous humor and antiviral therapy received prior to the onset of CMVR. METHODS: A total of 37 eyes from 26 different cases of CMVR in patients who visited Hokkaido University Hospital between 2007 and 2015 were enrolled. The diagnosis of CMVR was established based on characteristic ophthalmoscopic findings and the presence of local and/or systemic CMV infection. Among the 26 cases, 3 cases (12%) were HIV-positive, while the other 23 cases (88%) were HIV-negative. The records of clinical and laboratory results were reviewed from clinical charts retrospectively. RESULTS: CMV antigenemia was positive at the onset of CMVR in 14 cases (53.8%) and negative in the other 12 cases. In 9 cases among the antigenemia-negative cases (75.0%), the antigenemia had been previously positive and had turned negative before the onset of CMVR. In 12 of the 14 antigenemia-positive cases (85.7%) and in 8 of the 9 antigenemia-negative cases (88.9%) that were previously positive, systemic antiviral therapies had never been used or had been used before but had been discontinued prior to the onset of CMVR. CONCLUSION: Even if viremia turns negative, the risk of developing CMVR exists for more than several weeks after the completion of systemic therapy.
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Retinitis por Citomegalovirus , Citomegalovirus , Antígenos Virales , Antivirales/uso terapéutico , Retinitis por Citomegalovirus/diagnóstico , Retinitis por Citomegalovirus/tratamiento farmacológico , Ganciclovir/uso terapéutico , Humanos , Estudios RetrospectivosRESUMEN
PURPOSE: To report the incidence and clinical features of neovascular complications from cytomegalovirus (CMV) necrotizing retinopathy in patients after haploidentical hematopoietic stem cell transplantation. METHODS: Thirty-nine patients (58 eyes) of CMV necrotizing retinopathy after haploidentical hematopoietic stem cell transplantation in our institute between January 2018 and June 2020 were retrospectively reviewed, and cases that developed neovascular complications during follow-up were identified and described. RESULTS: Two (2 eyes) cases that developed neovascular glaucoma from CMV necrotizing retinopathy were identified. Both of them manifested as granular peripheral retinitis, panretinal occlusive vasculitis, and some degree of intraocular inflammation, which were consistent with chronic retinal necrosis. Insidious progression of isolated immune-mediated occlusive vasculitis that could only be observed on fundus fluorescein angiography without active retinitis or intraocular inflammation was recognized to be the cause in one of two cases. CONCLUSION: Neovascular glaucoma developed in 5.1%/cases and 3.4%/eyes complicated by CMV chronic retinal necrosis and vasculitis in patients after haploidentical hematopoietic stem cell transplantation, which warrants the needs for long-term follow-up. Immune-mediated CMV vasculitis could be an isolated manifestation in patients with a minimal immune deviation and may only be found on fundus fluorescein angiography, which emphasizes the importance of fundus fluorescein angiography on a regular basis during follow-up.
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Retinitis por Citomegalovirus/complicaciones , Infecciones Virales del Ojo/complicaciones , Glaucoma Neovascular/etiología , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Retina/diagnóstico por imagen , Adulto , Enfermedad Crónica , Retinitis por Citomegalovirus/diagnóstico , Retinitis por Citomegalovirus/terapia , Infecciones Virales del Ojo/diagnóstico , Femenino , Angiografía con Fluoresceína/métodos , Estudios de Seguimiento , Fondo de Ojo , Glaucoma Neovascular/diagnóstico , Humanos , Masculino , Leucemia-Linfoma Linfoblástico de Células Precursoras/terapia , Estudios RetrospectivosRESUMEN
PURPOSE: To explore the potential use of ultra-wide-field (UWF) imaging for screening of cytomegalovirus retinitis (CMVR) in AIDS patients. METHODS: Ninety-four patients whose CD4 count was below 200 cells/µL were enrolled in a prospective study. Each patient underwent UWF imaging and indirect ophthalmoscopy. The main outcome measures were the concordance and detection rates of these 2 approaches and the sensitivity and specificity of UWF imaging. RESULTS: Twenty-seven eyes in 18 patients were diagnosed with CMVR by the indirect ophthalmoscopy. UWF imaging missed the diagnosis in 1 eye because of a zone 3 CMVR lesion. The UWF image showed several CMVR patterns and locations: hemorrhagic necrotizing lesion, granular lesion, frosted branch angiitis, and optic neuropathy lesion. The concordance of the 2 approaches was excellent for the diagnosis of CMVR, classification of CMVR pattern, and location of CMVR. The detection rates of UWF imaging and indirect ophthalmoscopy were 14.0% (26/186; 95% CI 0.089-0.190) and 14.5% (27/186; 95% CI 0.094-0.196), respectively (p = 1.000). The sensitivity and specificity of UWF imaging were 96.3 and 100%, respectively. CONCLUSIONS: UWF imaging is capable of documentation of different CMVR lesions and AIDS-related CMVR screening when examination by an ophthalmologist is not available.
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Síndrome de Inmunodeficiencia Adquirida , Retinitis por Citomegalovirus , Retinitis por Citomegalovirus/diagnóstico , Humanos , Oftalmoscopía , Estudios Prospectivos , Sensibilidad y EspecificidadRESUMEN
PURPOSE: To analyze predisposing conditions in Turkish patients with CMV retinitis and to compare HIV-positive and HIV-negative patients. METHODS: We reviewed medical charts and ocular images of 41 patients with CMV retinitis diagnosed between 1996 and 2019. RESULTS: Eleven patients (27%) had HIV infection and 30 were immunocompromised from diverse causes. Initial visual acuity, type, zone, and extent of CMV retinitis, and response to anti-CMV treatment were not significantly different between the two groups. Vitreous haze and panretinal occlusive vasculopathy were the presenting features only in non-HIV patients, seen in 34% and 16% of eyes, respectively. Although not statistically significant, recurrent CMV retinitis was more common in non-HIV patients (17.4% vs. 4.3%/eye-year) and immune recovery uveitis was more common in HIV patients (43% vs. 26%/eye-year). Visual outcomes were similar. Final visual acuity of 1 logMAR or worse was significantly associated with the recurrence of CMV retinitis (odds ratio 9.67; p = 0.01) and also with the occurrence of immune recovery uveitis (odds ratio 4.31; p = 0.058). CONCLUSIONS: Diverse immunocompromising conditions are more commonly associated with CMV retinitis than HIV infection in Turkish patients. Intraocular inflammation was more commonly associated with active retinitis in non-HIV patients and immune recovery uveitis was more common in HIV patients.
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Retinitis por Citomegalovirus , Infecciones por VIH , Antivirales/uso terapéutico , Retinitis por Citomegalovirus/diagnóstico , Retinitis por Citomegalovirus/tratamiento farmacológico , Retinitis por Citomegalovirus/epidemiología , Infecciones por VIH/complicaciones , Infecciones por VIH/epidemiología , Humanos , Centros de Atención Terciaria , Turquía/epidemiologíaRESUMEN
BACKGROUND: To report the first case of belatacept-associated multidrug-resistant Cytomegalovirus retinitis in a kidney transplant recipient. CASE PRESENTATION: A 76-year-old African male renal allograft recipient was admitted for acute visual loss of the right eye. Ophthalmological examination of the right eye showed anterior uveitis and vitritis associated with large paravascular haemorrhages and yellow necrotic borders, involving the posterior pole but not the fovea. Both Cytomegalovirus DNA in plasma and aqueous humor were positive. The patient had had several episodes of Cytomegalovirus reactivation subsequent to the introduction of belatacept. His cytomegalovirus was multi-drug resistant, and was treated with maribarir, intravitreal and systemic injections of foscarnet, and anti-Cytomegalovirus human immunoglobulin. In parallel, belatacept was stopped and switched to tacrolimus. Cytomegalovirus DNA became undetectable and there was partial improvement of visual acuity at the last ophthalmologic examination, 18 months after the initial diagnosis of Cytomegalovirus retinitis. CONCLUSION: Cytomegalovirus retinitis is an uncommon opportunistic infection in kidney transplant recipients. Cytomegalovirus retinitis is a serious infection because of the risk of blindness and the occurrence of associated life-threatening opportunistic infections. In view of the recent literature, kidney transplant recipients treated by belatacept immunosuppression may be at increased risk for Cytomegalovirus disease, notably Cytomegalovirus retinitis. The occurrence of Cytomegalovirus retinitis may help improve the selection of patients converted to belatacept.
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Retinitis por Citomegalovirus , Trasplante de Riñón , Abatacept/uso terapéutico , Anciano , Antivirales/uso terapéutico , Retinitis por Citomegalovirus/diagnóstico , Retinitis por Citomegalovirus/tratamiento farmacológico , Ganciclovir/uso terapéutico , Humanos , Trasplante de Riñón/efectos adversos , MasculinoRESUMEN
Cytomegalovirus (CMV) retinitis in hematologic malignancies in the absence of hematopoietic cell transplant (HCT) is uncommon. We report a case of a 54-year-old woman with peripheral T-cell lymphoma who develops CMV retinitis and subsequently undergoes an autologous HCT, with eventual development of immune reconstitution uveitis. We further reviewed the PubMed literature on CMV retinitis in patients with lymphoma. We describe that CMV retinitis in patients with lymphoma has variable clinical presentations, may occur at any time during the course of the disease and chemotherapy, and is associated with significant morbidity.
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Retinitis por Citomegalovirus/diagnóstico , Trasplante de Células Madre Hematopoyéticas/efectos adversos , Síndrome Inflamatorio de Reconstitución Inmune/etiología , Linfoma/virología , Uveítis/etiología , Citomegalovirus/inmunología , Retinitis por Citomegalovirus/inmunología , Femenino , Humanos , Linfoma/complicaciones , Persona de Mediana EdadRESUMEN
PURPOSE: To study the characteristics and visual outcome of cytomegalovirus retinitis in patients of a tertiary referral ophthalmology center. METHODS: This retrospective cross-sectional study included 16 patients who presented with CMV retinitis between February 2014 and January 2017. Demographics, clinical signs, course of treatment, and visual and anatomical results were analyzed. RESULTS: Twenty five eyes of 16 patients were included. Eleven (68.8%) were females. The mean age was 29.37 ± 17.12 (range 11-73) years. Involvement was bilateral in 9 (56.2%) cases. HIV serology was negative in all patients. Best-corrected visual acuity was 0.57 ± 0.55 logarithm of the minimal angle of resolution (LogMAR) at the time of presentation and decreased to 0.69 ± 0.55 LogMAR on final visit (P = 0.332). None of the patients participating in this study was HIV-positive. CONCLUSION: CMV retinitis is a devastating complication in immunosuppressed. The visual acuity usually decreases despite aggressive appropriate treatment. This observation supports the increasing incidence of CMV infection in non-HIV patients.
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Retinitis por Citomegalovirus/diagnóstico , Infecciones Virales del Ojo/diagnóstico , Agudeza Visual/fisiología , Adolescente , Adulto , Anciano , Antivirales/uso terapéutico , Niño , Estudios Transversales , Retinitis por Citomegalovirus/tratamiento farmacológico , Retinitis por Citomegalovirus/fisiopatología , Infecciones Virales del Ojo/fisiopatología , Femenino , Estudios de Seguimiento , VIH , Infecciones por VIH , Humanos , Masculino , Persona de Mediana Edad , Pronóstico , Estudios Retrospectivos , Adulto JovenRESUMEN
BACKGROUND: Cytomegalovirus (CMV) retinitis is one of the most important opportunistic infections in HIV-infected patients in developing countries before the introduction of highly active antiretroviral therapy. In Nigerian and African HIV populations, CMV retinitis is under-reported. PATIENTS AND METHODS: In a cross-sectional study, 250 HIV-infected adults ≥18 years were recruited by systematic random sampling from March to August 2013. Using a structured questionnaire, information was obtained on socio-demographic characteristics and symptoms of visual impairment. HIV disease was staged according to the WHO clinical staging, and CD4+ T-lymphocyte count was measured. Participants with symptoms of impaired vision and/or CD4+ T-lymphocyte count <50 cells/µL had indirect ophthalmoscopic examination of the retina to detect CMV related eye lesions. RESULTS: Two hundred and fifty adults were HIV-infected, out of which 114 (46%) were males and 136 (54%) were females. The mean age of study participants was 35 years. History of impaired vision was reported by 21 (8.4%) of participants. The right eye was involved in 7 (33%), the left eye in 4 (19%), and both eyes in 10 (48%) of participants. The predominant symptoms were blurred vision 9 (43%), floaters 9 (43%), and blindness 3 (14%). Among participants who had indirect ophthalmoscopy, 3 (1.2%) had characteristic retinal changes suggestive of CMV retinitis. Two (67%) of patients with CMV retinitis were females and 1 (33%) was male. Mean CD4+ count was 25.33 ± 14.19 and all were WHO HIV clinical stage 4 with death occurring within 6 months of diagnosis. CONCLUSION: CMV retinitis though rare is associated with advanced HIV disease and attendant morbidity and mortality. We recommend integration of CMV diagnostic services and ophthalmological services as routine in HIV care and treatment programs in Nigeria targeted toward high-risk patients.
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Infecciones Oportunistas Relacionadas con el SIDA/epidemiología , Linfocitos T CD4-Positivos/patología , Retinitis por Citomegalovirus/epidemiología , Infecciones por VIH/complicaciones , Trastornos de la Visión/diagnóstico , Infecciones Oportunistas Relacionadas con el SIDA/diagnóstico , Adulto , Terapia Antirretroviral Altamente Activa , Recuento de Linfocito CD4 , Linfocitos T CD4-Positivos/inmunología , Estudios Transversales , Retinitis por Citomegalovirus/diagnóstico , Femenino , Infecciones por VIH/tratamiento farmacológico , Infecciones por VIH/epidemiología , Humanos , Masculino , Persona de Mediana Edad , Nigeria/epidemiología , Prevalencia , Trastornos de la Visión/epidemiología , Trastornos de la Visión/etiologíaRESUMEN
PURPOSE OF REVIEW: This review highlights recent studies that have increasingly implicated cytomegalovirus (CMV) as a significant cause of keratouveitis and retinitis in immunocompetent hosts. RECENT FINDINGS: Molecular testing has identified that CMV infection is frequently present in cases of Posner-Schlossman and Fuchs, keratouveitis syndromes previously presumed to be idiopathic conditions. Ocular hypertension and endothelial cell loss are important complications of CMV keratouveitis and are likely mediated by viral invasion of the trabecular meshwork and corneal endothelium. Topical ganciclovir is a well tolerated, effective, and economical therapy. CMV retinitis is possible in the absence of HIV/AIDS. SUMMARY: CMV has long been considered an innocuous infection in the general population, though recent studies have found otherwise. Intraocular reactivation, replication, and invasion of the trabecular meshwork and endothelium lead to recurrent bouts of ocular hypertension and endothelial cell loss, the complications of which may be tempered with initiation of antivirals. Topical ganciclovir is a promising therapy that needs investigation. CMV retinitis, an entity previously believed isolated to the severely immunosuppressed population, has been reported on numerous occasions in presumably immunocompetent individuals, particularly following local steroid injections. Further studies may elucidate the pathogenesis of CMV in immunocompetent populations.
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Enfermedades de la Córnea/diagnóstico , Infecciones por Citomegalovirus/diagnóstico , Retinitis por Citomegalovirus/diagnóstico , Infecciones Virales del Ojo/diagnóstico , Huésped Inmunocomprometido , Uveítis Anterior/diagnóstico , Antivirales/uso terapéutico , Enfermedades de la Córnea/tratamiento farmacológico , Infecciones por Citomegalovirus/tratamiento farmacológico , Retinitis por Citomegalovirus/tratamiento farmacológico , Endotelio Corneal/patología , Infecciones Virales del Ojo/tratamiento farmacológico , Ganciclovir/uso terapéutico , Humanos , Uveítis Anterior/tratamiento farmacológicoRESUMEN
BACKGROUND: Cytomegalovirus (CMV) retinitis is an opportunistic infection that primarily affects immunocompromised individuals. Intravitreal ganciclovir injection monotherapy or in combination with systemic anti-CMV therapy are effective treatments for CMV retinitis. Crystallization of ganciclovir after intravitreal injection is extremely rare. Only two cases had been reported in literature. Crystallization in only one eye after bilateral injections had not been reported before. We hereby report a case of intraocular ganciclovir crystallization in one eye after bilateral intravitreal injections, and repeated crystallization in the same eye after repeated injections. CASE PRESENTATION: A 79-year-old patient had bilateral cytomegalovirus retinitis and received bilateral intravitreal ganciclovir injections of 2.5 mg in 0.05 ml sterile water. Fundus examination after injection showed formation of needle-shaped, golden-yellow crystals in the vitreous of right eye but not in left eye. The crystals dissolved spontaneously. Repeated bilateral intravitreal ganciclovir injections 4 days later resulted in repeated crystallization of ganciclovir in right eye but not in left eye. The crystals dissolved spontaneously and completely after 5 minutes. Visual acuity remained unchanged and intraocular pressure was normal. CONCLUSIONS: Intraocular ganciclovir crystallization could occur after intravitreal injections. It is important to perform fundus examination after injection. The crystals may dissolve rapidly and vitrectomy may not be necessary. Our case suggested intraocular ganciclovir crystallization is an idiosyncratic phenomenon, subjects to distinctive intraocular environment which could be different between two eyes of the same patient. The susceptible intraocular environment could be persistent leading to repeated crystallization.
Asunto(s)
Antivirales/química , Precipitación Química , Retinitis por Citomegalovirus/tratamiento farmacológico , Ganciclovir/química , Cuerpo Vítreo/efectos de los fármacos , Anciano , Antivirales/uso terapéutico , Cristalización , Retinitis por Citomegalovirus/diagnóstico , Resultado Fatal , Ganciclovir/uso terapéutico , Humanos , Inyecciones Intravítreas , MasculinoRESUMEN
BACKGROUND: Cytomegalovirus (CMV) results in significant morbidity and mortality in Human Immunodeficiency Virus (HIV)-infected individuals. There is paucity of literature on paediatric CMV disease, especially from developing countries. METHODS: A retrospective review of records of all HIV-infected children with evidence of CMV disease was done. RESULTS: A total of 15 children were found to have CMV disease (retinitis in all, pneumonia in two and invasive gastrointestinal disease in one). Median CD4+ T cell count and percentage at diagnosis of CMV disease was 64.5 cells/µl and 3.6%, respectively. Intravenous ganciclovir was used in patients with active CMV disease. Of the 15 children, three died while two were lost to follow-up. Symptomatic patients had poor visual outcome and almost all children who were diagnosed on active screening attained normal vision. CONCLUSION: Retinitis is the most common CMV disease in HIV-infected children. Early detection by active screening and initiation of systemic ganciclovir reduces the morbidity.