PURPOSE:To study the incidence of retinopathy of prematurity (ROP) in a neonatal intensive care unit and obtain information on risk factors associated with ROP. METHODS:Four hundred twenty-three infants were screened for ROP between July 2006 and July 2010. Demographic information, clinical data, and risk factors were reviewed. RESULTS:The incidence was 40.4% (171 infants) for ROP, 9.2% (39 infants) for severe ROP, and 5.67% (24 infants) for laser treatment. Mean gestational age and birth weight were significantly lower among infants with ROP versus those without ROP (26 ± 0.13 vs 28.55 ± 0.12 weeks, P < .0001 and 840.5 ±17.49 vs 1,190.24 ± 20.20 g, P < .0001, respectively). Birth weight (P < .001), gestational age (P < .001), mechanical ventilation therapy (P = .039), and necrotizing enterocolitis (P = .019) were independent risk factors for ROP. CONCLUSION:Gestational age and birth weight were the most significant risk factors for developing ROP. The study population had an elevated percentage of infants with birth weight less than 1,000 g (extremely low birth weight), yet there was no corresponding increase in severe ROP incidence and treatment when compared to other studies.

译文

目的:研究新生儿重症监护病房早产儿视网膜病变(ROP)的发生率,并获得有关ROP相关危险因素的信息。
方法:2006年7月至2010年7月,对423例婴儿进行了ROP筛查。回顾了人口统计学信息,临床数据和危险因素。
结果:ROP的发生率为40.4%(171例婴儿),重度ROP的发生率为9.2%(39例婴儿),激光治疗的发生率为5.67%(24例婴儿)。患有ROP的婴儿的平均胎龄和出生体重显着低于未患有ROP的婴儿(26±0.13 vs 28.55±0.12周,P <.0001和840.5±17.49 vs 1,190.24±20.20 g,P <.0001)。出生体重(P <.001),胎龄(P <.001),机械通气治疗(P = .039)和坏死性小肠结肠炎(P = .019)是ROP的独立危险因素。
结论:妊娠年龄和出生体重是发生ROP的最重要危险因素。该研究人群的出生体重低于1,000 g(极低的出生体重)的婴儿百分比升高,但是与其他研究相比,严重的ROP发生率和治疗没有相应增加。

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