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KMID : 0367419790200010054
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Journal of Korean Pediatric Society
1979 Volume.20 No. 1 p.54 ~ p.56
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Effect of the phototherapy on intestinal transit time in jaundiced newborns
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이동환/Lee, Dong-Whan
윤종구/Yun, Chong-Koo
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Abstract
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It is well-known that the course of phototherapy,stool colour changes from yellow to green.. The occurrence of frequent loose green stools, commencing a few hours afer the beginning of treatment, has been observed in several different centers.
In order to elucidate the mechanism by which Phototherapy induces loose stools in newborns, studies were performed on the speed of intestinal transit by performing the carmine red ftest on 15 fullterm newborns, 15 jaundiced newborns before and after phototherapy and 15 healthy newborns exposed to phototherapy.
The following results were obtained.
1) Intestinat transit time in 15 full term newborns was 12.753.54 hours.(Fig. 1).
2) Intestinal transit time before phototherapy was 13.633.21 hours in 15 iaundjced newborns and it was 7.322.76 hours after phototherapy.(Fig. 1).
3) Intestinal transit time in 15 heathy newborns was 13.745.14 hours CFig. 1).
A statistically accelerated intestinal transit was observed in jaundiced newborns treated with phototherapy. The increased rate of intestinal transit produced by phototherapy is probably due to the action of the photodecomposition derivatives of bilirubin which are excreted during phototherapy.
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