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Autopsy as clinical quality control: a study of 15,143 autopsy cases
1Gerhard-Domagk-Institut für Pathologie, Münster, Germany.
Abstract:
The results of autopsy records at the Institute of Pathology of Münster University documented between 1961-70, 1978-87 and 1988-92 were compared with the documented clinical diagnoses of these cases. In the decade 1961-70, 23% of clinical diagnoses were found incorrect (with therapeutic relevance). In the decade 1978-87, the error rate was 18% and in 1988-92, 12%. The difference between the three groups was statistically significant (p < 0.01). Specific data were assembled for the main malignant tumor types. With respect to infectious diseases, the agreement between clinical and autopsy diagnosis is even poorer. Lues (syphilis) is now rarely recognized in clinical diagnosis, even if it is fatal. Merely 50% of all patients with active tuberculosis as primary disease and cause of death, had been diagnosed clinically. Endocarditis in all its forms was underdiagnosed clinically in 75% of the cases. In view of the widely ranging discussion about the value of autopsy today, and in view of the fact that in epidemiological studies the correctness of in vivo diagnosis is tacitly presumed, it has to be stated that autopsy is the best quality control for progress in clinical medicine.
Insights
Autopsy reviews reveal a significant decline in diagnostic errors over three decades, from 23% in 1961-70 to 12% in 1988-92. Despite improvements, autopsy remains crucial for quality control in clinical medicine.
Area of Science:
- Pathology
- Clinical Medicine
- Medical Diagnostics
Background:
- Autopsy diagnoses are critical for validating clinical accuracy.
- Previous studies have highlighted discrepancies between clinical and autopsy findings.
Purpose of the Study:
- To compare the accuracy of clinical diagnoses with autopsy findings over several decades.
- To assess trends in diagnostic errors and identify specific areas of concern.
Main Methods:
- Retrospective analysis of autopsy records from Münster University Institute of Pathology (1961-70, 1978-87, 1988-92).
- Comparison of documented clinical diagnoses with autopsy-confirmed diagnoses.
- Statistical analysis of diagnostic error rates over time.
Main Results:
- A statistically significant decrease in incorrect clinical diagnoses was observed, falling from 23% (1961-70) to 18% (1978-87) and 12% (1988-92).
- Infectious diseases, including syphilis, tuberculosis, and endocarditis, showed particularly poor clinical diagnostic accuracy.
- Underdiagnosis of active tuberculosis was 50%, and endocarditis was underdiagnosed in 75% of cases.
Conclusions:
- Autopsy findings demonstrate a significant improvement in clinical diagnostic accuracy over the study period.
- Despite progress, autopsy remains the definitive method for quality control in clinical medicine and epidemiology.
- Specific conditions, particularly infectious diseases, continue to be underdiagnosed, highlighting the need for enhanced clinical vigilance.
