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Analysis of ionic ratios in myocardial tissue and their relation to cardiac damage
M Carmen Torres1, Eduardo Osuna, María D Pérez-Cárceles
1Institute of Forensic Medicine of Murcia, Spain.
Insights
Postmortem biochemical analysis of heart ionic ratios can help identify cardiac damage from chest trauma. Ion level changes appear before histological alterations, offering early indicators of injury.
Area of Science:
- Forensic Pathology
- Biochemistry
- Cardiology
Background:
- Cardiac damage assessment often relies on anatomopathology.
- Biochemical markers may offer earlier indicators of cardiac injury.
Purpose of the Study:
- To evaluate postmortem biochemical analysis of ionic ratios in cardiac tissue.
- To correlate ionic ratios with cardiac damage from chest trauma.
- To compare biochemical changes with anatomopathologic findings.
Main Methods:
- Analysis of sodium (Na+), potassium (K+), calcium (Ca+2), magnesium (Mg+2), and zinc (Zn+2) levels.
- Samples collected from various heart tissue sites in 59 necropsy cases.
- Comparison between traumatic (40 cases) and non-traumatic (19 cases) deaths.
Main Results:
- Biochemical tests indicated a relationship between ionic values and cause of death.
- Alterations in cell membrane permeability and ionic ratios preceded histological changes.
- Ionic ratio modifications were observed earlier than established histological evidence of trauma.
Conclusions:
- Postmortem ionic ratio analysis is a potentially useful tool for assessing cardiac damage.
- Biochemical changes in ionic balance can serve as early indicators of traumatic cardiac injury.
- This method may provide insights into the timing of cellular damage in trauma cases.
Abstract:
The authors evaluated the usefulness of the postmortem biochemical analysis of ionic ratios in different parts of the heart and their relation to cardiac damage caused by chest trauma, as observed by anatomopathologic study. Fifty-nine 59 cases were studied, selected from routine necropsies, and samples were taken from different sites of cardiac tissue. The cause of death was trauma in 40 cases and nontraumatic causes in 19 cases. The object of this study was to analyze the levels of Na+, K+, Ca+2, Mg+2, and Zn+2 in different zones of the heart, and the relationship between intracellular and extracellular ion ratios and the different causes of death and any anatomopathologic alterations observed. The biochemical tests revealed a possible relation between the ionic values and cause of death. Alterations in cell membrane permeability and corresponding modification of the ionic ratios were produced earlier than histologic alterations, which need longer to establish themselves whether or not they follow a traumatic process.