Mechanical Asphyxia: Classification and Medico-Legal Interpretation

Introduction

Mechanical asphyxia refers to the pathological condition caused by physical obstruction or compression preventing normal respiration.

Types of Mechanical Asphyxia

• Ligature Strangulation: Pressure applied to the neck using a cord or ligature.
• Manual Strangulation: Pressure exerted by hands or limbs.
• Positional Asphyxia: Body position inhibits breathing.
• Traumatic Asphyxia: Extreme force applied to the chest limiting pulmonary function.

Medico-Legal Interpretation

Understanding the manner of death requires forensic examination, including postmortem findings such as petechial hemorrhages, bruising, and fractures.

Differential Diagnosis

Mechanical asphyxia must be distinguished from similar presentations such as hanging or chemical-induced hypoxia.