Value of perinatal necropsy examination

Area of Science:

• Perinatal Pathology
• Diagnostic Accuracy
• Medical Auditing

Background:

• Clinical diagnoses are established before necropsy using case notes and postmortem request forms.
• Necropsy includes macroscopic and histological examination, with microbiology, radiology, and cytogenetics as needed.
• Previous studies have highlighted discrepancies between clinical and pathological findings in perinatal mortality.

Purpose of the Study:

• To compare necropsy findings with clinical diagnoses in stillbirths and neonatal deaths.
• To determine the frequency of clinically important differences between antemortem and postmortem diagnoses.
• To assess the contribution of histological examination to pathological diagnoses in perinatal deaths.

Main Methods:

• Retrospective analysis of 150 stillbirths and 150 neonatal deaths (1981-1985).
• Comparison of clinical diagnoses from case notes and request forms with necropsy findings.
• Necropsy included macroscopic and histological examination of all organs, plus ancillary investigations where appropriate.

Main Results:

• Clinically important discrepancies were found in 54 of 150 stillbirths (36%).
• Clinically important information not recognized during life was identified in 66 of 150 neonatal deaths (44%).
• Histological examination was essential for diagnosis in 20% of all perinatal deaths.

Conclusions:

• Necropsy findings frequently reveal clinically significant differences compared to antemortem diagnoses in perinatal deaths.
• Histological examination plays a vital role in establishing accurate pathological diagnoses.
• Improved correlation between clinical and pathological data is essential for understanding perinatal mortality.