Coexisting Harlequin and Horner's syndromes.

groups were equivalent for age, gender, underlying diagnosis, operative procedure and amount of bolus fluid received (Table 1). The main results are shown in Table 2. We conclude that the change in postoperative fluid regimen from dextrose 3% and sodium chloride 0.3% at two-thirds maintenance rate to dextrose 5% and Hartmann’s at full maintenance rate reduced the proportion of patients with postoperative hyponatraemia and the fall in serum sodium at 12–16 h after operation. However, in our 2 yr study there were no patients in either cohort with clinically significant hyponatraemia. We are not aware of good quality clinical trials to guide the management of paediatric perioperative fluid therapy. We are currently enrolling patients in a randomized control trial to further investigate perioperative fluid management in children.