Controversies in Cardiopulmonary Death

Area of Science:

• Neurology
• Critical Care Medicine
• Forensic Medicine

Background:

• Mechanically ventilated patients in neurological intensive care units present unique challenges for death determination.
• Protracted pulselessness after cardiac arrest complicates the assessment of cardiopulmonary death.

Observation:

• Two cases of mechanically ventilated patients experienced cardiac arrest and prolonged pulselessness.
• Following extubation, both patients exhibited agonal movements, resembling respiration and creating an appearance of life.

Findings:

• Agonal movements, or gasping respiration, can occur after cessation of mechanical ventilation and circulatory arrest.
• These movements challenge the traditional criteria for declaring cardiopulmonary death, as they mimic vital signs.

Implications:

• The findings highlight ethical and medical controversies in defining the precise moment of death.
• Rethinking the definition of death may be necessary, considering the variability in physiological cessation in critically ill patients.