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[Clinicopathological analysis of sudden cardiac death cases by autopsy]
Rong-chao Sun1, Shu-dong Yang, Zhi-yi Zhou
1Department of Pathology, Wuxi People's Hospital Affiliated to Nanjing Medical University, Wuxi 214023, China.
Insights
Sudden cardiac death (SCD) is often linked to severe coronary artery disease, particularly in older individuals. This study highlights multiple severe coronary atherosclerotic stenoses as a key pathological finding in SCD cases.
Area of Science:
- Cardiovascular Pathology
- Forensic Medicine
- Epidemiology of Sudden Death
Context:
- Sudden cardiac death (SCD) represents a significant public health concern.
- Understanding the etiological factors and pathological changes is crucial for prevention and intervention.
- This study retrospectively analyzes clinical and pathological data from SCD cases.
Purpose:
- To investigate the primary causes and associated cardiac pathological alterations in sudden cardiac death (SCD).
- To identify major correlation factors contributing to SCD.
- To analyze demographic and pathological data of SCD cases.
Summary:
- Coronary atherosclerotic heart disease was the leading cause of SCD (44.5%), followed by myocarditis (10.9%) and hypertensive heart disease (7.6%).
- Multiple severe coronary atherosclerotic stenoses were identified as a significant pathological hallmark.
- A notable proportion of cases (16.8%) were classified as juvenile sudden unexplained death without clear cardiac organic pathology.
Impact:
- Findings emphasize the critical role of advanced coronary artery disease in SCD.
- Highlights the importance of considering coronary atherosclerosis in the evaluation of SCD, especially in elderly populations.
- Contributes to a better understanding of SCD etiology and pathological correlates.
Objective:
To explore the major correlation factors and cardiac pathological changes of sudden cardiac death (SCD).
Methods:
The clinical and pathological profiles of 119 SCD cases at Wuxi People's Hospital Affiliated to Nanjing Medical University from January 1985 to March 2012 were retrospectively analyzed. And the parameters of gender, age, causes of death and pathological changes of SCD were included.
Results:
Among them, the primary etiologies were coronary atherosclerotic heart disease (n = 53, 44.5%), hypertensive heart disease (n = 9, 7.6%), myocarditis (n = 13, 10.9%), acute pulmonary embolism (n = 8, 6.7%) and myocardiopathy(n = 3, 2.5%). The heart weights of male and female cases were (407 ± 126) and (349 ± 101) g respectively. Among 53 cases of coronary heart disease, there were 28 cases (52.8%) of grade IV coronary artery atherosclerotic stenosis and 17 were involved with multiple branches. The differences of coronary artery stenosis were insignificant between gender and age (P > 0.05). Acute myocardial infarction occurred in 18 cases and 15 of them were complicated with old myocardial infarction (OMI) while there were 27 cases of simple OMI. Twenty cases (16.8%) without obvious cardiac organic pathological changes were classified as juvenile sudden unexplained death.
Conclusions:
Sudden and dangerous SCD frequently occurs in elders. Multiple severe coronary atherosclerotic stenosis is an important pathological hallmark of SCD.
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