Online registry of neonatal necrotising enterocolitis in Shenzhen: protocol for a multicentre, prospective, open, observational cohort study
Authors: Guo Xin , Feng Jinxing , Zhao Xiaoli , Ying Erya , Liu Dong , Tu Huiying , Yan Yuqin , Huang Haiyun , Li Xiaodong , Chen Xianhong , Zeng Shujuan , Lin Yuehua , Zhou Kanghua , Zhang Lian , Yuan Shihua , Zhang Qianshen , Lin Fang , Dou Lei , Chai Yannan , Cai Yunxiang , Liu Rongtian , Bai Lichun , Chen Tumin , Chen Zhihua , Wang Zhangxing , Li Yuefeng , Gong Xuelei , Fang Xiaoyi , Zhang Airun , Li Guanming , Liao Zhuyu , Chen Cheng , Chen Jun , Guo Yanping , Liu Ying , Tang Hong , Lin Hanni , Rao Dan Dan 
Published: November 2024

IntroductionNecrotising enterocolitis (NEC) of the intestine of preterm infants leads to the risk of abdominal surgery, short bowel syndrome, neurodevelopmental disorders and death. Although the risks of NEC and its complications have been recognised in many countries, few countries have established NEC-specific registries to continuously monitor its aetiology and prognosis. In China, the understanding of risk factors and prognosis of NEC is incomplete, characterised by a lack of evidence from prospective and multicentre studies. Therefore, we designed a multicentre, prospective, open observational cohort study with the aim of investigating the risk factors and prognosis of NEC in a real-world setting in Shenzhen, Guangdong Province, by constructing an online registry of children with NEC and a bank of biospecimens.MethodsThis is a prospective, multicentre, open observational cohort study. From June 2024 to June 2028, more than 600 patients with NEC from 15 tertiary hospitals in Shenzhen, Guangdong Province, will be enrolled in the study. By constructing an online registry for NEC, clinical data will be collected during the prenatal and hospitalisation periods. Prospectively, biospecimens will be collected during the period of suspected NEC, at the time of confirmed NEC, and at the time of confirmed severe NEC, and filed in the online registry system. Follow-up data will include postdischarge healthcare needs, growth patterns measures, eye or vision examinations, cranial MRI findings, brainstem auditory evoked potentials or automated auditory brainstem responses, and the Chinese Griffith Developmental Scale at corrected age 18–24 months. Follow-up results were likewise recorded in an online registry system. Hospitalisation outcomes, including severe NEC, somatic growth and survival status, will be collected at discharge. Follow-up outcomes will include loss to visit, survival status, somatic growth measures and severe neurodevelopmental deficits at corrected age 18–24 months. This study will enhance our overall understanding of the risk factors and outcomes of NEC, ultimately helping to reduce the incidence of neonatal NEC and its poor prognosis.Ethics and disseminationOur programme has received approval from the Ethics Committee for Scientific Research Projects of the Longgang District Maternity & Child Healthcare Hospital in Shenzhen City (ethics approval number: LGFYKYXMLL-2024-47-01). We anticipate presenting our findings at various national conferences and submitting them to peer-reviewed paediatrics journals.Trial registration numberChiCTR2400085043.