Your browser doesn't support javascript.
loading
Mostrar: 20 | 50 | 100
Resultados 1 - 20 de 24
Filtrar
Más filtros

Banco de datos
País/Región como asunto
Tipo del documento
País de afiliación
Intervalo de año de publicación
1.
Diabetes Obes Metab ; 21(4): 791-800, 2019 04.
Artículo en Inglés | MEDLINE | ID: mdl-30393955

RESUMEN

AIMS: To assess the benefits of intensive statin therapy on reducing cardiovascular (CV) events in patients with type 2 diabetes complicated with hyperlipidaemia and retinopathy in a primary prevention setting in Japan. In the intension-to-treat population, intensive therapy [targeting LDL cholesterol <1.81 mmol/L (<70 mg/dL)] was no more effective than standard therapy [LDL cholesterol ≥2.59 to <3.10 mmol/L (≥100 to <120 mg/dL)]; however, after 3 years, the intergroup difference in LDL cholesterol was only 0.72 mmol/L (27.7 mg/dL), and targeted levels were achieved in <50% of patients. We hypothesized that the intergroup difference in CV events would have been statistically significant if more patients had been successfully treated to target. MATERIALS AND METHODS: This exploratory post hoc analysis focused on intergroup data from patients who achieved their target LDL cholesterol levels. The primary endpoint was the composite incidence of CV events. A Cox proportional hazards model was used to estimate hazard ratios (HRs) for incidence of the primary endpoint in patients who achieved target LDL cholesterol levels in each group. RESULTS: Data were analysed from 1909 patients (intensive: 703; standard: 1206) who achieved target LDL cholesterol levels. LDL cholesterol at 36 months was 1.54 ± 0.30 mmol/L (59.7 ± 11.6 mg/dL) in the intensive group and 2.77 ± 0.46 mmol/L (107.1 ± 17.8 mg/dL) in the standard group (P < 0.05). After adjusting for baseline prognostic factors, the composite incidence of CV events or deaths associated with CV events was significantly lower in the intensive than the standard group (HR 0.48; 95% confidence interval 0.28-0.82; P = 0.007). CONCLUSIONS: This post hoc analysis suggests that achieving LDL cholesterol target levels <1.81 mmol/L may more effectively reduce CV events than achieving target levels ≥2.59 to <3.10 mmol/L in patients with hypercholesterolaemia and diabetic retinopathy.


Asunto(s)
Enfermedades Cardiovasculares/prevención & control , LDL-Colesterol/metabolismo , Diabetes Mellitus Tipo 2/metabolismo , Retinopatía Diabética/metabolismo , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Hiperlipidemias/tratamiento farmacológico , Anciano , Enfermedades Cardiovasculares/epidemiología , Enfermedades Cardiovasculares/mortalidad , Diabetes Mellitus Tipo 2/complicaciones , Retinopatía Diabética/etiología , Femenino , Hemoglobina Glucada/metabolismo , Humanos , Hiperlipidemias/complicaciones , Hiperlipidemias/metabolismo , Análisis de Intención de Tratar , Japón , Masculino , Persona de Mediana Edad , Planificación de Atención al Paciente , Prevención Primaria , Modelos de Riesgos Proporcionales
2.
Pain Manag Nurs ; 15(2): 482-9, 2014 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-23466193

RESUMEN

Postoperative face-down posturing (FDP) is recommended to optimize the effects of intraocular gas tamponade after vitrectomy. However, patients undergoing FDP usually experience physical and psychological burdens. This 3-armed, randomized, single-center trial investigated the effects of aromatherapy on FDP-related physical pain. Sixty-three patients under FDP were randomly allocated to one of three treatment groups: aromatherapy massage with essential oil (AT), oil massage without essential oil (OT), and a control group. The AT and OT groups received 10 minutes of massage by ward nurses trained by an aromatherapist, while the control group received usual care. Outcomes were assessed as short-term (pre- to post-intervention) and long-term (first to third postoperative day) changes in physical pain in five body regions using face-scale. The AT and OT groups both revealed similar short-term pain reductions after intervention, compared with the control group. Regarding long-term effects, neither group experienced significant effects until the second day. Significantly more pain reduction compared with usual care occurred on the third day, mainly in the AT group, though there were few significant differences between the AT and OT groups. In conclusion, this study suggests that simple oil massage is an effective strategy for immediate pain reduction in patients undergoing FDP, while aromatherapy may have a long-term effect on pain reduction.


Asunto(s)
Aromaterapia/métodos , Masaje/métodos , Manejo del Dolor/métodos , Dolor Postoperatorio/terapia , Vitrectomía/enfermería , Anciano , Aromaterapia/enfermería , Femenino , Humanos , Masculino , Masaje/enfermería , Persona de Mediana Edad , Aceites/uso terapéutico , Manejo del Dolor/enfermería , Dolor Postoperatorio/enfermería , Posición Prona , Resultado del Tratamiento
3.
Int Ophthalmol ; 34(5): 1115-7, 2014 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23729310

RESUMEN

To determine the optimal area of retinal photocoagulation required for suppressing active neovascularisation (NVI) associated with diabetic retinopathy. We studied 1 eye each of 4 patients in whom active NVI was ophthalmoscopically shown to have been suppressed by additional photocoagulation. These patients initially underwent pan-retinal photocoagulation for diabetic retinopathy at another hospital, but NVI developed subsequently. We compared the areas of photocoagulation before and after additional photocoagulation and compared the area of retinal photocoagulation. The photocoagulated areas before and after additional photocoagulation in the four eyes were 20.7 and 45.2, 36.6 and 56.3, 30.4 and 67.4, and 11.7 and 53.4 %, respectively. The area of retinal photocoagulation required to suppress active NVI is calculated to be ~50 %.


Asunto(s)
Retinopatía Diabética/complicaciones , Enfermedades del Iris/cirugía , Iris/irrigación sanguínea , Fotocoagulación/métodos , Neovascularización Patológica/cirugía , Femenino , Humanos , Masculino , Persona de Mediana Edad , Estudios Retrospectivos , Resultado del Tratamiento
4.
Int Ophthalmol ; 32(4): 401-3, 2012 Aug.
Artículo en Inglés | MEDLINE | ID: mdl-22638923

RESUMEN

We report a case of bilateral iridocyclitis accompanied by bacterial meningitis in an immunocompetent patient. Case report. A 48 year-old healthy female visited our hospital with strong headache, fever, bilateral hyperemia, and blurred vision in both eyes. A slit-lamp examination revealed moderate cells and flare in the anterior chamber of both eyes, with fine keratoprecipitates. There were no obvious inflammatory changes in the vitreous, retina, and optic disc of both eyes. Elevation of peripheral blood white blood cells, C-reactive protein, and an elevated number of cerebrospinal fluid (CSF) cells suggested bacterial meningitis. The patient was admitted to our hospital and received intravenous antibiotics. Finally, a CSF culture revealed infection with gram-positive rods, suspected Listeria monocytogenes, confirming bacterial meningitis. For iridocyclitis, we prescribed betamethasone eyedrops and 0.5 % tropicamide eyedrops with intravenous adminstration of systemic antibiotics. 3 days later, her headache and bilateral hyperemia disappeared. This case is better described as sterile reactive uveitis rather than endogenous bacterial endophthalmitis, because bilateral anterior uveitis was resolved without chronic uveitis, iris atrophy, and vitreous opacity. When clinicians see patients with meningitis and bilateral anterior uveitis, sterile reactive uveitis should be considered in the differential diagnosis of uveitis.


Asunto(s)
Iridociclitis/microbiología , Listeria monocytogenes/aislamiento & purificación , Listeriosis/diagnóstico , Meningitis Bacterianas/complicaciones , Uveítis Anterior/microbiología , Diagnóstico Diferencial , Femenino , Humanos , Iridociclitis/diagnóstico , Listeriosis/complicaciones , Meningitis Bacterianas/diagnóstico , Persona de Mediana Edad , Uveítis Anterior/diagnóstico
5.
Circ J ; 75(2): 329-35, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-21178297

RESUMEN

BACKGROUND: In patients with diabetic retinopathy (DR), vitreous hemorrhage (VH) is a common complication that threatens visual acuity and hence, quality of life. A considerable number of DR patients at risk of VH require coronary revascularization, but little is known about the prevalence of VH after coronary revascularization. METHODS AND RESULTS: This study investigated 151 patients with DR who were followed up by ophthalmologists between April 2004 and September 2008, and underwent coronary revascularization (coronary artery bypass surgery n=36 or drug-eluting stent implantation n=115). At the time of coronary revascularization 56 had non-proliferative DR (NPDR) and 95 had proliferative DR (PDR). During an average follow-up of 531 days after revascularization, VH occurred in 24 (15.9%) patients, 18 (11.9%) of whom experienced VH within 6 months of the procedure. In VH patients, PDR rather than NPDR predominated as the background to VH (21 vs. 3, respectively). The 1-year prevalence of VH was higher in patients with PDR than in those with NPDR (22.0% vs. 1.9%, P=0.0055). CONCLUSIONS: VH is not a rare complication following coronary revascularization among patients with DR, especially in those with PDR. Thus, in terms of maintaining quality of life, VH after coronary revascularization needs further attention in these patients.


Asunto(s)
Angioplastia Coronaria con Balón , Puente de Arteria Coronaria , Enfermedad Coronaria/terapia , Retinopatía Diabética/complicaciones , Revascularización Miocárdica , Complicaciones Posoperatorias/epidemiología , Vitreorretinopatía Proliferativa/complicaciones , Hemorragia Vítrea/epidemiología , Anciano , Enfermedad Coronaria/cirugía , Angiopatías Diabéticas/cirugía , Angiopatías Diabéticas/terapia , Susceptibilidad a Enfermedades , Stents Liberadores de Fármacos , Femenino , Estudios de Seguimiento , Humanos , Estimación de Kaplan-Meier , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias/etiología , Complicaciones Posoperatorias/prevención & control , Prevalencia , Modelos de Riesgos Proporcionales , Calidad de Vida , Hemorragia Vítrea/etiología , Hemorragia Vítrea/prevención & control
6.
Eye (Lond) ; 35(8): 2221-2228, 2021 08.
Artículo en Inglés | MEDLINE | ID: mdl-33106609

RESUMEN

OBJECTIVES: To compare the effects of intensive and standard statin therapy on severity of diabetic retinopathy (DR) complicated by hypercholesterolaemia in a prespecified substudy of the standard vs. intEnsive statin therapy for hypercholesteroleMic Patients with diAbetic retinopaTHY (EMPATHY) study. METHODS: Among 5144 patients in the multicentre, prospective, randomized EMPATHY study, this substudy considered 157 patients with seven-field fundus photographs of sufficient quality taken during study enrolment and at the 3-year visit. Eighty-five and seventy-two patients received intensive and standard statin treatments, respectively, in a treat-to-target manner. The primary endpoint was a two-step change in the Early Treatment Diabetic Retinopathy Study (ETDRS) DR severity scale at 36 months. Surrogate markers included changes in hard exudates, changes in visual acuity, and additional ocular treatments during study follow-up. RESULTS: Intensive and standard treatment groups did not differ significantly in terms of changing two or more steps on the DR severity scale (P = 0.4380). In patients with severe DR, defined as ≥47 on the severity scale, exploratory analysis showed more frequent improvement of DR, by at least one step, with intensive vs. standard treatment (83.3% vs. 40.0%; P = 0.0346). The intensive and standard groups did not differ in changes on the hard exudates severity scale (P = 0.3460), logarithm of minimum angle of resolution visual acuity (P = 0.5500), or additional ocular treatment during follow-up. CONCLUSIONS: Intensive and standard statin treatment may have similar effects on DR in the population of all patients with DR and hypercholesterolaemia, but intensive therapy may be more beneficial in patients with severe DR.


Asunto(s)
Diabetes Mellitus , Retinopatía Diabética , Inhibidores de Hidroximetilglutaril-CoA Reductasas , Hipercolesterolemia , Hiperlipidemias , Retinopatía Diabética/tratamiento farmacológico , Humanos , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Hipercolesterolemia/complicaciones , Hipercolesterolemia/tratamiento farmacológico , Estudios Prospectivos
7.
Diabetes Care ; 41(6): 1275-1284, 2018 06.
Artículo en Inglés | MEDLINE | ID: mdl-29626074

RESUMEN

OBJECTIVE: Diabetes is associated with high risk of cardiovascular (CV) events, particularly in patients with dyslipidemia and diabetic complications. We investigated the incidence of CV events with intensive or standard lipid-lowering therapy in patients with hypercholesterolemia, diabetic retinopathy, and no history of coronary artery disease (treat-to-target approach). RESEARCH DESIGN AND METHODS: In this multicenter, prospective, randomized, open-label, blinded end point study, eligible patients were randomly assigned (1:1) to intensive statin therapy targeting LDL cholesterol (LDL-C) <70 mg/dL (n = 2,518) or standard statin therapy targeting LDL-C 100-120 mg/dL (n = 2,524). RESULTS: Mean follow-up was 37 ± 13 months. LDL-C at 36 months was 76.5 ± 21.6 mg/dL in the intensive group and 104.1 ± 22.1 mg/dL in the standard group (P < 0.001). The primary end point events occurred in 129 intensive group patients and 153 standard group patients (hazard ratio [HR] 0.84 [95% CI 0.67-1.07]; P = 0.15). The relationship between the LDL-C difference in the two groups and the event reduction rate was consistent with primary prevention studies in patients with diabetes. Exploratory findings showed significantly fewer cerebral events in the intensive group (HR 0.52 [95% CI 0.31-0.88]; P = 0.01). Safety did not differ significantly between the two groups. CONCLUSIONS: We found no significant decrease in CV events or CV-associated deaths with intensive therapy, possibly because our between-group difference of LDL-C was lower than expected (27.7 mg/dL at 36 months of treatment). The potential benefit of achieving LDL-C <70 mg/dL in a treat-to-target strategy in high-risk patients deserves further investigation.


Asunto(s)
Enfermedades Cardiovasculares/epidemiología , Retinopatía Diabética/epidemiología , Inhibidores de Hidroximetilglutaril-CoA Reductasas/uso terapéutico , Hipercolesterolemia/tratamiento farmacológico , Anciano , Enfermedades Cardiovasculares/sangre , LDL-Colesterol/sangre , Comorbilidad , Retinopatía Diabética/sangre , Retinopatía Diabética/complicaciones , Femenino , Humanos , Inhibidores de Hidroximetilglutaril-CoA Reductasas/sangre , Hipercolesterolemia/sangre , Hipercolesterolemia/epidemiología , Incidencia , Japón/epidemiología , Masculino , Persona de Mediana Edad , Estudios Prospectivos
8.
J Glaucoma ; 15(3): 195-9, 2006 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-16778640

RESUMEN

PURPOSE: To determine the long-term intraocular pressure (IOP) control and postoperative complications after initial trabeculectomy with use of mitomycin C (MMC) in patients with primary open-angle glaucoma (POAG). PATIENTS AND METHODS: A retrospective review was conducted of a consecutive series of 123 eyes (87 patients) with POAG who underwent initial trabeculectomy with MMC and had at least 4 years of follow-up. All patients underwent standard trabeculectomy with 0.04% MMC applied intraoperatively for 3 minutes. The long-term outcomes (IOP control and bleb leak, long-standing hypotony, bleb-related infections) were analyzed with the Kaplan-Meier life-table method on the basis of three definitions of successful IOP control (defined as IOP <18 mmHg (definition 1), IOP <16 mmHg (definition 2), and IOP decrease of by > or =30% and <21 mmHg (definition 3)). RESULTS: The mean follow-up time was 6.8+/-1.4 (mean+/-SD) years. The cumulative survival rates were 67.0+/-4.6%, 44.5+/-5.4%, and 74.1+/-4.2%, respectively, based on definitions 1, 2, and 3, 8 years postoperatively by life-table analysis. At 8 years, bleb leak occurred in 7.9+/-2.6% of eyes, long-standing hypotony in 8.3+/-2.5%, and bleb-related infections in 5.9+/-2.4%. CONCLUSION: Long-term outcome after initial trabeculectomy with MMC in Japanese POAG patients is comparable with that reported in other populations and with that after trabeculectomy with 5-fluorouracil.


Asunto(s)
Alquilantes/administración & dosificación , Glaucoma de Ángulo Abierto/tratamiento farmacológico , Glaucoma de Ángulo Abierto/cirugía , Mitomicina/administración & dosificación , Trabeculectomía/métodos , Adulto , Anciano , Anciano de 80 o más Años , Terapia Combinada , Femenino , Estudios de Seguimiento , Glaucoma de Ángulo Abierto/fisiopatología , Humanos , Presión Intraocular , Japón , Tablas de Vida , Masculino , Persona de Mediana Edad , Complicaciones Posoperatorias , Estudios Retrospectivos , Resultado del Tratamiento
9.
Neurol Med Chir (Tokyo) ; 46(7): 344-7, 2006 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-16861828

RESUMEN

A 61-year-old male initially presented to the ophthalmology department complaining of sudden visual loss. Fundus photography and ultrasonography followed by computed tomography identified Terson's syndrome caused by subarachnoid hemorrhage (SAH). Cerebral angiography revealed a dissecting aneurysm of the left vertebral artery. Other than obtunded visual acuity, his neurological examination was normal and he denied any headache. He was treated conservatively with pain and blood pressure control. He complained of headache associated with rerupture of the aneurysm on day 5. The patient died of rerupture on day 14. The clinical course of this patient indicates that Terson's syndrome may occur without sudden increase of intracranial pressure. Terson's syndrome may occur as a rare initial clinical sign of SAH caused by ruptured cerebral aneurysm.


Asunto(s)
Aneurisma Roto/complicaciones , Aneurisma Intracraneal/complicaciones , Hemorragia Subaracnoidea/complicaciones , Hemorragia Vítrea/etiología , Fondo de Ojo , Humanos , Masculino , Bulbo Raquídeo/diagnóstico por imagen , Persona de Mediana Edad , Hemorragia Subaracnoidea/diagnóstico por imagen , Síndrome , Tomografía Computarizada por Rayos X , Ultrasonografía , Hemorragia Vítrea/diagnóstico por imagen
10.
Int J STD AIDS ; 26(7): 516-7, 2015 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-25033881

RESUMEN

We report the case of a patient with proliferative diabetic retinopathy, who was later found to have human immunodeficiency virus infection that progressed rapidly. However, we could not determine the clinical course after the onset of human immunodeficiency virus because the patient died shortly after it was detected. In this patient, the activity of proliferative diabetic retinopathy showed regression after treatment for human immunodeficiency virus was initiated.


Asunto(s)
Fármacos Anti-VIH/uso terapéutico , Terapia Antirretroviral Altamente Activa/métodos , Retinopatía Diabética/complicaciones , Infecciones por VIH/tratamiento farmacológico , Retinopatía Diabética/fisiopatología , Infecciones por VIH/complicaciones , Humanos , Masculino , Persona de Mediana Edad , Resultado del Tratamiento
11.
Surg Neurol Int ; 6: 29, 2015.
Artículo en Inglés | MEDLINE | ID: mdl-25737799

RESUMEN

BACKGROUND: Central retinal artery occlusion (CRAO) is a stroke of the retina and is associated with extremely poor prognosis. Although the pathophysiology of CRAO is diverse, including autoimmune or hematological disorders, neurosurgeons can perform carotid endarterectomy for the causal internal carotid artery stenosis or perform acute recanalization of the extra- or intracranial artery occlusion due to cardiogenic embolism. CASE DESCRIPTION: A 78-year-old male with a history of atrial fibrillation (Af) visited our hospital with a chief complaint of right monocular blindness. Magnetic resonance imaging revealed occlusion of the right internal and external carotid arteries. We performed emergent cervical surgical embolectomy for restoration of vision. Recanalization was accomplished within 8 h after onset, and the patient regained practical vision within 4 months. CONCLUSION: In the diagnosis and treatment of CRAO, occlusion of the internal and/or external carotid artery due to large cardiac emboli should be taken in consideration, especially when the patient has a history of Af, since acute recanalization might restore vision.

12.
J Cataract Refract Surg ; 28(9): 1689-93, 2002 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-12231332

RESUMEN

We report 4 cases of complete posterior dislocation of an intraocular lens (IOL) in the capsular bag occurring a mean of 5.5 years after uneventful cataract surgery. In all 4 cases, posterior chamber IOLs were fixated within the capsulorhexis. The patients experienced sudden loss of vision without an episode of trauma or ocular disease. Using a 3-port pars plana vitrectomy, the IOLs were explanted through a limbal incision and a new IOL was sutured to the ciliary sulcus. Histological examination indicated that zonular fibers were severed at the site of insertion in the capsule.


Asunto(s)
Migración de Cuerpo Extraño , Cápsula del Cristalino/cirugía , Lentes Intraoculares/efectos adversos , Capsulorrexis , Migración de Cuerpo Extraño/patología , Migración de Cuerpo Extraño/cirugía , Humanos , Implantación de Lentes Intraoculares , Masculino , Persona de Mediana Edad , Reoperación
13.
Asia Pac J Ophthalmol (Phila) ; 3(5): 263-6, 2014.
Artículo en Inglés | MEDLINE | ID: mdl-26107911

RESUMEN

PURPOSE: To compare pretrabeculectomy and posttrabeculectomy progression rates in normal-tension glaucoma in 6 subfields of the central 30 visual field. DESIGN: A retrospective study. METHODS: Clinical records of 34 patients with normal-tension glaucoma (12 males and 22 females) with progressive visual field loss undergoing successful trabeculectomy were studied. The time course of the mean deviation (MD) and mean of total deviation in the superior/inferior arcuate, paracentral, and cecocentral subfields were analyzed using a linear mixed-effects model. RESULTS: Patients' age, intraocular pressure (IOP), MD, and pretrabeculectomy and posttrabeculectomy follow-up averaged 57.7 ± 9.6 years, 15.7 ± 1.7 mm Hg, -12.7 ± 5.5 dB, and 4.6 ± 1.5 and 5.7 ± 1.2 years, respectively. Average IOP was lowered by 6.1 ± 3.3 to 10.3 ± 2.7 mm Hg (5-14 mm Hg) over the postoprerative period with MD change rate of -0.25 dB/y (P < 0.003), which was slower (P < 0.001) than the preoperative one (-0.70 dB/y). The preoperative mean of total deviation change rate (-0.31 to -1.35 dB/y) improved postoperatively in the superior and inferior paracentral subfields (P < 0.001), whereas it remained unchanged in the inferior cecocentral/arcuate subfields (P > 0.10). The postoperative rate of progression showed no significant variation in these subfields. CONCLUSIONS: The rate of progression significantly varied among the 6 subfields preoperatively. It was significantly slowed down in the superior subfields by surgical IOP reduction, but not in the inferior cecocentral/arcuate subfields.

14.
Open Ophthalmol J ; 7: 54-7, 2013.
Artículo en Inglés | MEDLINE | ID: mdl-24082980

RESUMEN

INTRODUCTION: HRA (Heiderberg Retina Angiograph) 2 uses a confocal scanning laser system which can provide high quality digital images but its imaging field is only 30°at most. HRA2 with a wide-field contact lens system allows an imaging field of up to 150°. METHODS: We examined the advantages and disadvantages of HRA2, with a wide-field contact lens, for the evaluating diabetic retinopathy (DR). RESULTS: HRA2 was beneficial for obtaining images of the entire retina simultaneously, without missing peripheral retinal non-perfusion and neovascularization. On the other hand, clear images connot be acquired in cases with media opacities such as corneal dystrophy, cataract and asteroid hyalosis, or in those with yellow tinted IOL. CONCLUSIONS: HRA2 with a wide-field contact lens is useful for visualizing peripheral retinal lesions in DR cases.

15.
Acta Ophthalmol ; 89(1): 37-9, 2011 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-21272287

RESUMEN

PURPOSE: To compare the transmittance of laser beams that are used for photocoagulation through a yellow-tinted intraocular lens (IOL) and a clear IOL. METHODS: The transmittance of laser beams of different wavelengths (488 + 514, 514, 521, 568 and 647 nm) through yellow-tinted and clear IOLs of varying dioptric powers [+10, +20 and +30 dioptres (D)] was measured using a laser power meter. The transmittance ratio was defined as the ratio of the transmittance thorough a tinted IOL to that through a clear IOL, assuming that the transmittance value of the latter is 1; this ratio was calculated for each IOL and each wavelength of the laser beam. RESULTS: There were no apparent differences in the transmittance values between the tinted and clear IOLs when the 521, 568 and 647 nm wavelengths were used. In contrast, the transmittance ratio decreased for the tinted IOL when the short wavelengths - 488 + 514 and 514 nm - were used, especially when an IOL of a higher dioptric power was used. This ratio was found to be 91.9% for a +10 D, 86.7% for a +20 D and 82.2% for a +30 D lens when a 488 + 514 nm wavelength beam was used. CONCLUSION: When treating patients using photocoagulation, we must bear in mind the decreased transmittance ratio of short-wavelength laser beams when passed through tinted IOLs and increase the setting power of the beam accordingly.


Asunto(s)
Láseres de Gas , Lentes Intraoculares , Fotocoagulación/instrumentación , Óptica y Fotónica
16.
Int J Ophthalmol ; 4(2): 216-7, 2011.
Artículo en Inglés | MEDLINE | ID: mdl-22553647

RESUMEN

AIM: To describe a case in which vitrectomy was required for vitreous hemorrhage and fibrovascular proliferation after laser-induced chorioretinal venous anastomosis (LCVA) for non-ischemic central retinal vein occlusion (CRVO). METHODS: Observational case report. RESULTS: A 72-year-old man complained of central scotoma in the left eye, and was diagnosed as suffering from non-ischemic CRVO. LCVA was performed in another hospital. Although favorable visual function was briefly maintained postoperatively,severe vitreous hemorrhage developed in his left eye, necessitating vitrectomy. CONCLUSION: Considering that LCVA carries a risk of serious complications, we must apply this treatment with caution, especially in ethnic groups, such as the Japanese, in whom pigmentation reacts to photocoagulation excessively.

20.
J Cardiol ; 53(1): 86-93, 2009 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-19167643

RESUMEN

BACKGROUND: Patients with diabetic retinopathy (DR) have an increased risk of death from coronary heart disease and myocardial infarction. The purpose of this study was to compare the outcomes of revascularization strategies (sirolimus-eluting stent [SES] and coronary artery bypass surgery [CABG]) in patients with DR according to the stage of retinopathy: non-proliferative retinopathy (NPDR) and proliferative retinopathy (PDR). METHODS: From April 2004 until February 2007, 627 patients including 51 NPDR and 62 PDR patients underwent SES implantation. For each retinopathy group, a historical comparison group at the same stages of retinopathy undergoing CABG was selected. Cardiac events were defined as a composite of cardiac death, myocardial infarction, and repeat revascularization. RESULTS: The average follow-up from the time of the initial revascularization was 27.7 ± 8.5 months for NPDR-SES patients, 69.6 ± 36.6 months for NPDR-CABG patients, 26.4 ± 9.7 months for PDR-SES patients, and 68.3 ± 44.2 months for PDR-CABG patients; and Kaplan-Meier estimates of the percentages of events at 24 months were 47.0%, 22.8%, 28.5%, and 26.0%. Kaplan-Meier curves for cardiac events differed significantly between the SES group and the CABG group in NPDR patients (p = 0.04), whereas the curves did not differ significantly between the two groups of PDR patients. The adjusted hazard ratio of SES implantation for cardiac events in the entire group of DR patients was 1.75 (95% confidence interval [CI] 1.02-3.00, p = 0.04). CONCLUSIONS: SES implantation is not a suitable method of revascularization in DR patients, especially in NPDR patients. CABG may become the first-choice revascularization technique for these patients.


Asunto(s)
Puente de Arteria Coronaria , Enfermedad Coronaria/etiología , Retinopatía Diabética/complicaciones , Stents Liberadores de Fármacos/efectos adversos , Sirolimus/administración & dosificación , Anciano , Femenino , Estudios de Seguimiento , Humanos , Masculino , Infarto del Miocardio/etiología , Resultado del Tratamiento
SELECCIÓN DE REFERENCIAS
DETALLE DE LA BÚSQUEDA