片眼に脈絡膜剥離と眼底出血を発症した新生児の1例

Unilateral occurrence of retinal hemorrhage, choroidal hemorrhage and detachment in a newborn infant

　片眼に網膜出血，脈絡膜出血，脈絡膜剥離と多彩な病状を呈した新生児の1例を経験した．

　新生児の眼底血圧は，多くの因子により左右されるが，8例の平均では右眼61.0／48.2mmHg，左眼64.4／51.6mmHgであった．

　本症例では全身諸検査で特に異常なく，眼底血圧が脈絡膜剥離発生時には34.6／28.6mmHgと低値を示し，その消失時には59,4／44.4mmHgとほぼ正常値に復していたことより，その発生原因として，内頸動脈または眼動脈の一時的な狭窄あるいは発育遅延などの眼内への血液循環障害が推測された．

We detected sporadic retinal hemorrhages in a female infant 6 days after birth. She was born at full term and weighed 1,998 g at birth. Two weeks later, a massivechoroidal hemorrhage appeared nasal to the disc to be followed by extensive choroidal detachment one week later. All the fundus lesions healed spontaneously 21 months after birth.

The central retinal artery pressure (CAP) was 35/29 mmHg in the affected eye while the choroidal detach-ment was present. The CAP value was elevated to 59/ 44 mmHg after disappearance of choroidal detachment.The CAP values in 8 normal neonatals averaged 61/48 mmHg for the right eye and 64/52 mmHg for the left.As there were no detectable abnormalities in this infant except the abnormally low CAP value, we sur-mised that the choroidal detachment was caused by disturbed blood circulation in the eye secondary to transient stenosis of the ipsilateral internal carotid or ophthalmic artery.

Rinsho Ganka (Jpn J Clin Ophthalmol) 40(5) : 522-524, 1986