Department of Pediatrics, Division of Neonatology, KEM Hospital, Pune, 411011, India.
Indian J Pediatr. 2020 Feb;87(2):158-160. doi: 10.1007/s12098-019-03126-9. Epub 2019 Dec 12.
The authors prospectively studied ionizing radiation exposure in consecutive 107 very low birth weight (VLBW) neonates, admitted to their Level III neonatal intensive care unit (NICU). Number of X-rays, their indications and calculated dose of radiation were documented. Their mean birth weight (+SD) and gestational age (+SD) were 1077 (±219.8) g and 29.7 (+2.57) wk respectively. Extremely low birth weight (ELBW) neonates underwent significantly higher radiographs when compared with VLBW neonates; 7.5(5-13.25) vs. 2(1-6); p < 0.0001. ELBW neonates received 3 times higher dose of radiation, when compared with VLBW neonates; 139.4 μsv (81.6-256.15) vs. 46.6 μsv (14.4-115.7); p < 0.0001. Seven percent of ELBW neonates received >1msv radiation. Lifetime risk associated with high radiation exposure during neonatal period is unknown. Every effort should be taken to reduce number of radiographs. Imaging modalities without radiation exposure such as, point of care ultrasound should be used wherever possible.
作者前瞻性地研究了连续 107 例极低出生体重（VLBW）新生儿在其三级新生儿重症监护病房（NICU）中的电离辐射暴露情况。记录了 X 射线的数量、适应证和计算出的辐射剂量。他们的平均出生体重（+SD）和胎龄（+SD）分别为 1077（±219.8）g 和 29.7（+2.57）wk。与 VLBW 新生儿相比，极低出生体重（ELBW）新生儿接受的 X 光片明显更多；7.5（5-13.25）比 2（1-6）；p<0.0001。与 VLBW 新生儿相比，ELBW 新生儿接受的辐射剂量高 3 倍；139.4 μsv（81.6-256.15）比 46.6 μsv（14.4-115.7）；p<0.0001。7%的 ELBW 新生儿接受的辐射量>1msv。新生儿期高辐射暴露的终身风险尚不清楚。应尽一切努力减少 X 光片的数量。应尽可能使用无辐射暴露的成像方式，如床边超声。
