[Multicenter prospective study of retinopathy of prematurity--III. Timing of the coagulation therapy and the course of retinopathy of prematurity after coagulation].
We reviewed the records of 360 cases of retinopathy of prematurity (ROP) in 12 institutions in Japan, and investigated the timing of the coagulation therapy and the course of ROP after coagulation. The first coagulation therapy was performed at 9.6 weeks after birth and 35.9 weeks of postconceptional age on the average. The severity index in individual infants also showed that the disease became worse during the period from 32 to 36 weeks of postconceptional age. However, the fundus was clearly visible and there was no primary hazy media during this period. On the basis of the results of the timing of the first treatment, the visibility of the fundus, and the severity index in individual infants, we concluded that an ophthalmological examination with special care should be performed during the period from 32 to 36 weeks of postconceptional age.
Takeuchi
A
A
Eye Clinic, Tenri Hospital, Japan.
Nagata
M
M
Terauchi
H
H
Eguchi
K
K
Oshima
T
T
Majima
A
A
Tsuruoka
Y
Y
Kobayashi
T
T
Yonemoto
H
H
Oomoto
T
T
D006801:Humans; D007231:Infant, Newborn; D007234:Infant, Premature; D007564:Japan; D008028:Light Coagulation; D011379:Prognosis; D011446:Prospective Studies; D012178:Retinopathy of Prematurity / Q000601:surgery*; D012720:Severity of Illness Index; D013997:Time Factors