Patidar Shailendra, Shrivastava Jyotsna, Agrawal Amit, Dwivedi Rashmi
Department of Pediatrics, Gandhi Medical College and Kamla Nehru Hospital, Bhopal, Madhya Pradesh, India.
J Clin Neonatol. 2013 Jul;2(3):121-4. doi: 10.4103/2249-4847.119995.
Hematological values of the newborn babies vary according to the gestational age and intrauterine growth.
The objective of this study is to compare the iron status and red cell parameters in healthy term small for gestational age (SGA) and appropriate for gestational age (AGA) neonates.
A prospective hospital based study was conducted in a tertiary care teaching institution of central India. 50 AGA and 50 SGA neonates were included in the study and serum iron, serum ferritin and red cell parameters (hemoglobin (Hb), red blood cell (RBC) count and hematocrit (Hct), mean corpuscular volume (MCV), means corpuscular hemoglobin (MCH), mean corpuscular hemoglobin concentration (MCHC) and red cell distribution width (RDW]) were estimated within 24 h of birth.
Serum ferritin levels were significantly low in SGA neonates as compared with AGA (mean 103 vs. 158 ng/ml; P=0.001) neonates. In SGA neonates, mean values of Hb (P=0.001), RBC count (P=0.018) and Hct (P=0.005) were significantly higher than in AGA neonates. Higher values of RDW and MCV were seen in SGA group in comparison with AGA neonates. Similarly, lower values of serum iron, MCH and MCHC were seen in the same group; although, these were non-significant.
Despite higher Hb content, SGA neonates are deficient in iron store at birth as indicated by lower serum ferritin levels in them and early iron supplementation should be considered in them.
新生儿的血液学指标会因胎龄和宫内生长情况而有所不同。
本研究旨在比较健康足月儿中小于胎龄儿(SGA)和适于胎龄儿(AGA)的铁状态及红细胞参数。
在印度中部一家三级医疗教学机构开展了一项基于医院的前瞻性研究。研究纳入了50例AGA新生儿和50例SGA新生儿,并在出生后24小时内测定血清铁、血清铁蛋白和红细胞参数(血红蛋白(Hb)、红细胞(RBC)计数、血细胞比容(Hct)、平均红细胞体积(MCV)、平均红细胞血红蛋白含量(MCH)、平均红细胞血红蛋白浓度(MCHC)和红细胞分布宽度(RDW))。
与AGA新生儿相比,SGA新生儿的血清铁蛋白水平显著较低(均值分别为103 ng/ml和158 ng/ml;P = 0.001)。在SGA新生儿中,Hb(P = 0.001)、RBC计数(P = 0.018)和Hct(P = 0.005)的均值显著高于AGA新生儿。与AGA新生儿相比,SGA组的RDW和MCV值更高。同样,该组的血清铁、MCH和MCHC值较低;不过,差异无统计学意义。
尽管SGA新生儿的Hb含量较高,但出生时铁储备不足,表现为血清铁蛋白水平较低,因此应考虑对其尽早进行铁补充。