Vacuum-assisted closure in the treatment of poststernotomy mediastinitis in the paediatric patient.

INTRODUCTION: Delayed sternal closure after paediatric open heart procedure is often necessary. The risk of delayed sternal closure is infection: superficial wound or sternal and mediastinal infection. The incidence of sternal wound infection reported in the literature varies from 0.5 to 10%. The mortality for poststernotomy deep sternal infection continues to be high--from 14 to 47%. Established treatment includes surgical debridement, drainage and irrigation, antibiotics, frequent change of wound dressing and direct or secondary closure with omentum or pectoral muscle flap.

PATIENTS AND METHODS: Between October 2003 and August 2005, three children, aged from 9 days to 2 years and who had developed severe mediastinitis after cardiac surgery were treated with the vacuum-assisted closure (VAC) system.

RESULTS: The duration of VAC treatment ranged from 12 to 21 days. The response to VAC was rapid with local purulence and C-reactive protein (CRP) both decreasing within 72 h in all cases. After good granulation was obtained, two patients required a thin skin graft.

DISCUSSION: All three children had peritoneal dialysis which did not permit omental use. The use of pectoralis major is a difficult technique in neonates and the haemodynamic conditions were poor in our cases. The VAC technique is a good indication in post-cardiotomy mediastinitis in children: it plays a role in the reduction of infection and provides good healing.