Purpose To identify if there is an association between foetal haemoglobin (HbF) concentration and retinopathy of prematurity (ROP) in very preterm infants. Patients and methods Prospective cohort study. Infants born o32 weeks' gestational age or o1501 g in two tertiary neonatal units between January 2012 and May 2013 (n = 42) were enrolled. HbF and adult haemoglobin (HbA) concentrations were measured using high-pressure liquid chromatography from blood samples sent as part of routine neonatal care once routinely requested laboratory tests had been performed. Clinical data were obtained from case notes. We calculated odds ratios (ORs) (95% confidence intervals (CIs)) to quantify the relationship between initial and mean %HbF with ROP severity (none, stages 1-3). Results A total of 42 infants were recruited: mean gestation 28.0 weeks (SD 1.91); mean birth weight 1042 g (SD 264). Six infants died before ROP screening; 14/36 developed ROP (39%); and 22/36 (61%) did not. Infants who developed ROP had similar initial %HbF (83.3 vs 92.3%, P = 0.06), but significantly lower mean %HbF (61.75 vs 91.9%, P = 0.0001) during their inpatient stay than those who did not develop ROP. In ordinal logistic regression models adjusted for birth weight, gestation and transfusion volume, mean post-natal %HbF was negatively associated with ROP severity: adjusted OR 0.94 (0.90-0.99), while initial %HbF at birth was not: adjusted OR 1.05 (0.97-1.16). Conclusion Replacing HbF by HbA during transfusion may promote ROP development by rapidly increasing oxygen availability to the retina. Conversely, maintaining a higher %HbF may be a protective factor against ROP.

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Bath-induced paroxysmal events in infants and children can be triggered by various etiologies, including cardiological, neurological, and metabolic causes. It is important to ascertain the underlying cause for such events as this significantly affects the child's management and prognosis. We present the case of a 19-month-old boy who presented with recurrent episodes of apnea, cyanosis, and reduced level of consciousness in response to bathing. Through detailed history and investigation, the diagnosis of water reflex epilepsy was made. Treatment with carbamazepine and adjustment of the bathing technique have prevented further episodes from occurring, and the child's growth and development are progressing normally.ConclusionWater reflex epilepsy can mimic a range of other conditions, and a high index of suspicion is required to establish the diagnosis. Children with water reflex epilepsy can achieve a good quality of life with modified bathing and appropriate antiepileptic medication.

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