Congenital diaphragmatic hernia: a retrospective autopsy study

Area of Science:

• Pediatric Surgery
• Neonatal Pathology
• Congenital Anomalies

Background:

• Congenital diaphragmatic hernia (CDH) is a severe pediatric surgical emergency.
• It is a significant contributor to perinatal mortality, with incidence ranging from 1 in 2000 to 5000 live births.
• Early diagnosis of CDH is crucial due to high mortality rates.

Purpose of the Study:

• To determine the incidence and characteristics of congenital diaphragmatic hernia in infant and neonatal autopsies.
• To identify common features, herniated contents, and associated anomalies in CDH cases.
• To analyze the contribution of CDH to perinatal mortality over a 30-year period.

Main Methods:

• Retrospective analysis of infant and neonatal autopsies conducted between 1960 and 1989.
• Review of 588 autopsies to identify cases of congenital diaphragmatic hernia.
• Data collection on incidence, demographics, defect location, herniated contents, clinical presentation, and associated anomalies.

Main Results:

• Ten cases of congenital diaphragmatic hernia were identified, representing 1.7% of all autopsies.
• The male to female ratio was 7:3, with all defects being left-sided posterolateral.
• Classical symptoms (dyspnea, cyanosis, dextrocardia) were present in over 50% of cases; 30% had associated anomalies contributing to mortality.

Conclusions:

• Congenital diaphragmatic hernia is a significant cause of perinatal mortality in autopsied infants.
• Left-sided posterolateral defects are common, often involving intestinal loops and liver.
• Associated congenital anomalies frequently contribute to the high mortality rate in CDH cases.