A nationwide study on hospital admissions due to dehydration in exclusively breastfed infants in the Netherlands: its incidence, clinical characteristics, treatment and outcome.

AIMS: To estimate the incidence and clinical characteristics in hospital admissions due to dehydration or undernutrition and their laboratory evaluation and treatment outcome in exclusively breastfed infants.

METHODS

All hospital admissions during the first 3 months of life assessed by the Dutch Paediatric Surveillance Unit (DPSU) between mid 2003 and mid 2005.

RESULTS

Nationwide 158 cases reported, correspond to an incidence of 58/y/100,000 breastfed infants; it is lower for severe dehydration at risk for hypernatraemia; 20/y/100,000. Sixty-five per cent of cases were <2 weeks old, their median weight loss was 9.3% and median age at admission 5 days; Serum sodium value was measured in only 12% of all cases. Insufficient volume intake and inadequate growth were most frequently reported (61% and 41%). Lethargy, jaundice or clinical dehydration was scored in 11-25%, seizures or shock in 3%. A breast pump at home was used in only 31%. In the hospital breast pumps were available (82%) as lactation consultants (73%). For treatment 65% was offered formula, in 30% by nasogastric drip. Most admissions lasted up to 3 days, all recovered fully and 33% were breastfed exclusively at discharge.

CONCLUSION

The incidence of severe dehydration in the Netherlands is relatively low. With extended use of breast pumps at home it could be lower. To prevent complications, we recommend applying a reference weight chart, a full clinical examination and more extensive screening of serum sodium and glucose.