Objective:

Due to high mortality rates the capillary leakage and the acute abdomen are important risk factors of the probability of survival. The aim of an optimal therapy of the acute abdomen within the neonatal period is beside the cure of the underlying disease the prophylaxis of capillary leakage with the help of optimised intra- and postoperative volume therapy.

Question:

Do the neonates with very low birth weight and a surgery therapy of acute abdomen benefit from early increase of the haemoglobin/haematocrit by optimised volume therapy with crystalloid and colloidal volume as prophylaxis of the capillary leakage?

Inclusion criteria:

• All Children with very low birth weight who have undergone surgery of acute abdomen within the neonatal period between 2001 and 2011 on "Campus Charité Mitte" or "Charité Virchow - Klinikum".
• Neonates (calculated date of birth + 4 weeks)

Exclusion criteria:

• Birth weight > 1500g

Neonates with very low birth weight and surgery therapy of acute abdomen