Early markers of neurodevelopmental disorders based on general movements for very preterm infants: study protocol for a multicentre prospective cohort study in a clinical setting in China

Author:

Wang JunORCID,Shen Xiushu,Yang Hong,Li Zhihua,Liang Shuyi,Wu Furong,Tang Xinglu,Mao Xujie,He Minsi,Xu Fengdan,Li Xueyan,Li Chengmei,Qian Shuangshuang,Zhu Xiaoyun,Meng Fanzhe,Wu Yun,Gao Herong,Cao Jiayan,Yin Huanhuan,Wang Yin,Huang Yanxiang

Abstract

IntroductionVery preterm (VPT) infants may experience varying degrees of neurodevelopmental challenges. Lack of early markers for neurodevelopmental disorders may delay referral to early interventions. The detailed General Movements Assessment (GMA) could help us to identify early markers for VPT infants at risk of atypical neurodevelopmental clinical phenotype in the very early stage of life as soon as possible. Preterm infants with high risk of atypical neurodevelopmental outcomes will have the best possible start to life if early precise intervention in critical developmental windows is allowed.Methods and analysisThis is a nationwide, multicentric prospective cohort study that will recruit 577 infants born <32 weeks of age. This study will determine the diagnostic value of the developmental trajectory of general movements (GMs) at writhing and fidgety age with qualitative assessment for different atypical developmental outcomes at 2 years evaluated by the Griffiths Development Scales-Chinese. The difference in the General Movement Optimality Score (GMOS) will be used to distinguish normal (N), poor repertoire (PR) and cramped sychronised (CS) GMs. We plan to build the percentile rank of GMOS (median, 10th, 25th, 75th and 90th percentile rank) in N, PR and CS of each global GM category and analyse the relationship between GMOS in writhing movements and Motor Optimality Score (MOS) in fidgety movements based on the detailed GMA. We explore the subcategories of the GMOS list, and MOS list that may identify specific early markers that help us to identify and predict different clinical phenotypes and functional outcomes in VPT infants.Ethics and disseminationThe central ethical approval has been confirmed from the Research Ethical Board of Children’s Hospital of Fudan University (ref approval no. 2022(029)) and the local ethical approval has been also obtained by the corresponding ethics committees of the recruitment sites. Critical analysis of the study results will contribute to providing a basis for hierarchical management and precise intervention for preterm infants in very early life.Trial registration numberChiCTR2200064521.

Funder

the Advanced and Appropriate Technique of the Extension Project from Shanghai Municipal Health Commission

Publisher

BMJ

Subject

General Medicine

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