Abstract:
:The incidence and severity of retinopathy of prematurity (ROP) were studied in 561 survivors of low birth weight infants (LBWIs) weighing under 2,000g. They were the survivors out of 604 LBWIs admitted to Okayama National Hospital during the five years from January 1981 to December 1985. The tcPO2 of all the LBWIs on the respirator or under oxygen administration was monitored using an Oxymonitor SM 361. The upper limit of tcPO2 was maintained between 50 to 80 torr. The ophthalmologic funduscopy was continued until 12 months of age. The early active stages of ROP were recorded by "the International Classification 1984". The cicatricial change of retina was classified by the criteria of the Joint Committee for the Study of Retrolental Fibroplasia in Japan. In the survivors, 55 cases of active ROP were found. (Stage 1:29 cases, 2:17, 3:9, and 4:0) In the survivors, 27 cases of cicatricial ROP were found, (Grade I:27 cases, II:0, III:0, IV:0) None of them developed blinding retinopathy. Neither the artificial ventilation nor the duration of oxygen administration influenced the incidence of ROP with statistical significance. The incidence and severity of ROP in this study seems to be one of the lowest among those hitherto published. Though our study is not a controlled one, it can be concluded that tcPO2 monitoring eliminates the blinding ROP.
journal_name
Adv Exp Med Bioljournal_title
Advances in experimental medicine and biologyauthors
Yamanouchi I,Igarashi I,Ouchi Edoi
10.1007/978-1-4613-1927-6_19subject
Has Abstractpub_date
1987-01-01 00:00:00pages
105-8eissn
0065-2598issn
2214-8019journal_volume
220pub_type
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