RESUMO
OBJECTIVE: To compare the results of indirect ophthalmoscopy versus determination of the red reflex in newborns admitted to the intermediate neonatal intensive care unit. METHODS: All the patients (71) admitted to the intermediate neonatal intensive care unit from July to September of 2017 were screened with the red reflex. Immediately afterwards, they were pharmacologically dilated and indirect ophthalmoscopy was performed. All of the red-reflex screening and the funduscopic examination were performed by the same evaluator. RESULTS: A total of 14.1% (20/142) of the eyes had an altered red reflex. Indirect ophthalmoscopy revealed that 21.8% (31/142) of the eyes had intraocular abnormalities. Two of these eyes had optic nerve colobomas, two eyes had cataracts, and the rest had intra-retinal haemorrhages. Indirect ophthalmoscopy revealed that only 35% (7/20) of the eyes with an altered red reflex had intraocular disease. Indirect ophthalmoscopy also revealed that intraocular disease was present in 77.4% (24/31) of the eyes despite a normal red reflex. The false positive rate of the red reflex was calculated to be 9.2%, and the false negative rate was 16.9%. The sensitivity of the red reflex was only 56.4%, and the specificity was 89.5%. The positive predictive value was 70.4%, and the negative predictive value was 82.2%. CONCLUSIONS: Neonatal screening with the red reflex is not sufficient to detect intraocular disease. A normal neonatal red reflex does no exclude intraocular disease. It has a specificity of nearly 90%, but its sensitivity is only 56%. Most retinal haemorrhages are undiagnosed as they cannot be detected with a red reflex.
Assuntos
Oftalmopatias/diagnóstico , Recém-Nascido/fisiologia , Triagem Neonatal/métodos , Oftalmoscopia/métodos , Catarata/congênito , Catarata/diagnóstico , Coloboma/diagnóstico , Costa Rica , Reações Falso-Negativas , Reações Falso-Positivas , Feminino , Fundo de Olho , Idade Gestacional , Humanos , Recém-Nascido de Baixo Peso , Recém-Nascido Prematuro , Doenças do Prematuro/diagnóstico , Masculino , Nervo Óptico/anormalidades , Valor Preditivo dos Testes , Hemorragia Retiniana/diagnóstico , Sensibilidade e EspecificidadeRESUMO
El síndrome del niño sacudido (SNS) es una forma de abuso físico caracterizada por ciertos hallazgos clínicos entre los que se encuentran presencia de hematoma subdural o subaracnoideo, edema cerebral difuso, y hemorragias retinianas, en ausencia de otras muestras físicas de lesión traumática, los cuales se producen al sacudir fuertemente al niño tomado del tórax o las extremidades. La aceleración-desaceleracion producida por dicho movimiento constituye el mecanismo de lesión. El cuadro clínico se puede manifestar con hallazgos inespecíficos como vómitos, somnolencia, irritabilidad hasta signos como los mencionados anteriormente, estos niños suelen presentar secuelas a corto y largo plazo. En Costa Rica la legislación ampara al menor contra los maltratos y da al sistema de salud la labor de salvaguardar la integridad y vida del mismo.
The shaken baby syndrome (SBS) is a form of physical abuse characterized for some clinical findings including the presence of a subdural or subarachnoid haematoma, diffuse cerebral edema and retinal haemorrhages and absence of other physical signs of traumatic injury which are produced when the victim is held by the torso or the extremities and violently shaken. The acceleration - deceleration produced by the movement is thought to be the production mechanism of the injury. The clinical findings could be as unspecific as vomits, sleepiness, irritability or signs like the ones listed above, this children often presents short and long term complications. In Costa Rica the legislation protects the children against abuses and give the health system the responsibility of taking care of childrens integrity and life.