Defect-diaphragmatic ratio: a new parameter for assessment of defect size in neonates with congenital diaphragmatic hernia

摘要: The aim of our study is to introduce a new objective method perioperative evaluation the size diaphragmatic defect enable comparison results among various centres and methods used for reconstruction. Prospective observational neonates with congenital hernia (CDH) respiratory distress within 24 h birth operated on from January 2009 December 2011. Weight, length, thoracic shape diameters were measured. To determine relative defect, defect-diaphragmatic ratio (DDR = defect area:diaphragm area × 100) was calculated. measured calculated data subsequently compared between Gore-Tex patch group (GT) primary repair (PR). Mann–Whitney U test statistical analysis. Forty-seven patients CDH admitted during period. overall survival rate 79 % (37/47). Preoperative stabilization achieved in 85 % (40/47). Survival 93 % (37/40). Diaphragmatic reconstruction 7 (17 %), 33 (83 %). Mortality 29 %; mortality 3 %. Data anthropometric measurement complete 34 children (5 GT 29 PR). Significant differences found PR transverse sagittal (48.0 ± 5.7 vs. 30.1 ± 5.9, P < 0.00061; 34.0 ± 12.5 16.0 ± 7.3, P < 0.0022) DDR (18.29 ± 4.60 5.77 ± 3.28, P < 0.0005), respectively. value as an criterion extent confirmed by close correlation feasibility group. This assessment may improve comparing surgical techniques different centres, thus facilitates sharing experience management CDH.