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![Page 1: Forensic Medicine and Toxicology Unit Department of Pathology College of Medicine King Saud University Postmortem Medicine Khaldoon Aljerian MBBS, MHSc,](https://reader036.fdocuments.in/reader036/viewer/2022081419/56649e915503460f94b96607/html5/thumbnails/1.jpg)
Forensic Medicine and Toxicology Unit
Department of PathologyCollege of MedicineKing Saud University
Postmortem Medicine
Khaldoon AljerianMBBS, MHSc, FRCPC
Pathologist – Bioethicist – Forensic ExpertForensic Neuropathologist
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Postmortem Medicine
• PM medicine law & definition
• Systems
• Reportable cases
• PM changes
• Management
• COD - DC
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Islamic jurisprudence Council, of the Muslim World League
• Based on necessities which calls for the postmortem examination of dead bodies, and with which the postmortem examination, becomes more a benefit than a depravity of violating the dignity of the dead human.
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Medicine
• The science of diagnosing,
treating, or preventing disease &
other damage to the body or mind.
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Forensic Medicine
• Forensic medicine: One of the largest &
most important forensic science.
• Medical knowledge - criminal & civil law.
• Medical science specialties:
• Therapeutic, diagnostic & basic
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Forensic Sciences
•Forensic Pathology •Forensic Toxicology •Forensic Psychology •Forensic Anthropology •Forensic Archeology •Forensic Entomology •Forensic Odontology •Forensic Serology •Forensic Botany
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Forensic Sciences
• Computer Forensics • Criminalistics • DNA typing • Fingerprints • Document Examination • Forensic Reconstruction• Forensic microanalysis• Ballistics
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Pathology
• Anatomic Pathology:• Molecular Pathology• Cytology• Surgical pathology• Postmortem examination
• Clinical Pathology• Biochemistry• Haematology• Immunology• Microbiology
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Forensic Pathology
• Subspecialty• Examination of living or dead persons • Provide an opinion concerning:
• Identification• Cause, manner: disease, injury, death• Biological and physical evidence• Wounds, patterns, and sequence• Death investigation
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Forensic Pathology
Prevent:
Injury, disease, and death
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Postmortem Medicine
• PM medicine law & definition
• Systems
• Reportable cases
• PM changes
• Management
• COD - DC
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Systems
• Coroner or medical examiner
• Particular geographic jurisdiction
• Quasi-judicial powers
• Inquiry into deaths
• Complete the certificate of death
• Recommendations/inquiry
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Postmortem Medicine
• PM medicine law & definition
• Systems
• Reportable cases
• PM changes
• Management
• COD - DC
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Reportable cases
• Unnatural (suspicious, abuse -/+, iatrogenic, unexpected)
• Unattended, within 24H (arrival, anesthesia, procedure)
• Drugs (prescription, non)
• Special circumstances: custody, occupation, children,
pregnancy, unable to complete certification
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Postmortem Medicine
• PM medicine law & definition
• Systems
• Reportable cases
• PM changes
• Management
• COD - DC
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Changes after Death
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Postmortem Medicine
• PM medicine law & definition
• Systems
• Reportable cases
• PM changes
• Management
• COD - DC
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What does a forensic pathologist do?
• Authority• History• Imaging• Laboratory tests• Physical examination• Surgical examination• Report• Communication• Recommendations
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Identification of the Living andthe Dead
• Morphological characteristics
• Fingerprints
• Dental
• DNA profiling
• Tattoos and body piercing
• Identity of decomposed or skeletalized
remains
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Surgical examination
• Incisions
• Tissue samples (surg path, molecular)
• Tissue, fluid (microbiology and toxicology)
• Retention
correlates all the information
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draws conclusions:
• Cause, manner of death
• Report
• Communicate
• Recommendations: prevent
disease, injury & death
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The Autopsy Lexicon
• Suggested Headings for the Autopsy
Report
• Randy L. Hanzlick, MD, for the
Members of the Autopsy Committee,
College of American Pathologists
(Arch Pathol Lab Med. 2000;124:594–603)
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Postmortem Medicine
• PM medicine law & definition
• Systems
• Reportable cases
• PM changes
• Management
• COD - DC
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Cause of Death
• Injury or disease that results in the
cessation of life
• “results in”
• Causal linkages in a temporal
chain
• Temporal delay not relevant
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Triangle of COD
Disease
Drugs,alcohol & toxins
TRAUMA
COD
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Disease
• Ischemia due to coronary atherosclerosis
• Hemorrhage due to Chronic alcoholism
• Infection due to pneumococcus
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Trauma
• Blunt
• Sharp
• Projectile
• Asphyxia
• Heat, electricity and radiation
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Alcohol, drugs & toxins
• Alcohols: Ethanol, methanol, ethylene glycol
• Street: Heroin, cocaine
• OTC, OTS: Diphenhydramine
• Prescription: Antidepressants, analgesics
• Terrorism: Botulinum, SEB
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“Pending”• After the autopsy the cause of death
is not clear = “pending”
• Medical or scene information needed
• Toxicology
• Microscopy (histologic examination)
• Examination of retained tissue (brain)
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Manner of Death
• Natural
• Accident
• Suicide
• Homicide
• Undetermined
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Acute myocardial infarction
Atherosclerotic coronary artery disease
Hypertension, diabetes, obesity
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Thank you :o)