Asturias Ana L, Gilbert Clare, Silva Juan C, Quinn Graham E
Unidad Nacional de Oftalmologia, Guatemala, Guatemala.
Department of Clinical Research, London School of Hygiene & Tropical Medicine, London, United Kingdom.
J AAPOS. 2022 Feb;26(1):22.e1-22.e5. doi: 10.1016/j.jaapos.2021.08.307. Epub 2021 Dec 29.
To report findings of a telemedicine retinopathy of prematurity (ROP) screening program in six neonatal units in rural areas of Guatemala, using a portable, noncontact, 40° field digital fundus camera (Pictor Plus) operated by trained technicians.
National ROP Program Guidelines screening criteria were used: gestational age <36 weeks and/or birth weight (BW) <2000 g, or GA <36 weeks but BW ≥2000 g, with qualifying medical history. Retinal images were obtained by two technicians and graded by ophthalmologists experienced in ROP. Infants with signs of pre-plus or plus disease in one or both eyes were referred for clinical examination. Screening was stopped when retinal vessels in anterior zone II were normal on two successive evaluations or the infant had reached 45 week's postmenstrual age.
A total of 418 of 1,890 eligible infants (22.1%) were screened. Mean GA was 33.9 ± 2.2 weeks (range, 27-36), and mean BW 1728.3 ± 379.3 g (range, 840-2830 g). Thirty-three infants (8.6%) developed plus or pre-plus disease, and 19 (58%) underwent ophthalmologic examination. Fifteen infants were confirmed with type 1 ROP, and 14 were treated. Mean GA of treated infants treated was 33.6 ± 3.0 weeks (range, 32-34.9), and mean BW was 1,646 ± 245.8 g (range, 1100-1774.1 g).
Imaging with a noncontact fundus camera can facilitate detection of treatable ROP in countries with limited resources. Strengthening the health systems, including motivation and continued training of neonatal intensive care personnel is essential to improve and maintain program effectiveness. Reasons for, and interventions to address the low uptake of screening need to be explored to extend coverage of ROP screening to district hospitals in Guatemala.
报告危地马拉农村地区六个新生儿病房使用便携式、非接触式、40°视野数字眼底相机(Pictor Plus)开展的远程医疗早产儿视网膜病变(ROP)筛查项目的结果,该相机由经过培训的技术人员操作。
采用国家ROP项目指南的筛查标准:孕周<36周和/或出生体重(BW)<2000g,或孕周<36周但BW≥2000g且有符合条件的病史。视网膜图像由两名技术人员获取,并由ROP方面经验丰富的眼科医生进行分级。一只或两只眼睛有阈值前病变或阈值病变体征的婴儿被转诊进行临床检查。当连续两次评估显示二区前部视网膜血管正常或婴儿达到孕龄45周时,筛查停止。
1890名符合条件的婴儿中,共有418名(22.1%)接受了筛查。平均孕周为33.9±2.2周(范围27 - 36周),平均出生体重为1728.3±379.3g(范围840 - 2830g)。33名婴儿(8.6%)出现阈值病变或阈值前病变,19名(58%)接受了眼科检查。15名婴儿被确诊为1型ROP,14名接受了治疗。接受治疗婴儿的平均孕周为33.6±3.0周(范围32 - 34.9周),平均出生体重为1646±245.8g(范围1100 - 1774.1g)。
在资源有限的国家,使用非接触式眼底相机成像有助于检测可治疗的ROP。加强卫生系统,包括激励和持续培训新生儿重症监护人员,对于提高和维持项目有效性至关重要。需要探索筛查接受率低的原因及干预措施,以将ROP筛查覆盖范围扩大到危地马拉的地区医院。