Agonal Sequences in 14 Filmed Hangings With Comments on the Role of the Type of Suspension, Ischemic Habituation, and Ethanol Intoxication on the Timing of Agonal Responses

@article{Sauvageau2011AgonalSI,
  title={Agonal Sequences in 14 Filmed Hangings With Comments on the Role of the Type of Suspension, Ischemic Habituation, and Ethanol Intoxication on the Timing of Agonal Responses},
  author={Anny Sauvageau and Romano Laharpe and David King and Graeme Dowling and Sam W. Andrews and Sean Kelly and Corinne Ambrosi and Jean-Pierre Guay and Vernon J. Geberth},
  journal={The American Journal of Forensic Medicine and Pathology},
  year={2011},
  volume={32},
  pages={104-107}
}
The Working Group on Human Asphyxia has analyzed 14 filmed hangings: 9 autoerotic accidents, 4 suicides, and 1 homicide. The following sequence of agonal responses was observed: rapid loss of consciousness in 10 ± 3 seconds, mild generalized convulsions in 14 ± 3 seconds, decerebrate rigidity in 19 ± 5 seconds, beginning of deep rhythmic abdominal respiratory movements in 19 ± 5 seconds, decorticate rigidity in 38 ± 15 seconds, loss of muscle tone in 1 minute 17 seconds ± 25 seconds, end of… 
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This study analyzed eight filmed hangings and found that rapid loss of consciousness was observed, closely followed by convulsions, and a complex pattern of decerebrate rigidity and decorticate rigidity then followed.
Agonal Sequences in Four Filmed Hangings: Analysis of Respiratory and Movement Responses to Asphyxia by Hanging *
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Despite differences in the types of hanging, this unique study reveals similarities that are further discussed that may hold the key to answer questions regarding the sequence of events leading to death in human asphyxia.
A Filmed Hanging Without Decerebrate and Decorticate Rigidity: A Case Report and Pathophysiological Considerations
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A case of filmed hanging not presenting with decerebrate and decorticate rigidity, where a 52-year-old man stepped off a stool, hanging himself in a complete suspension in an upright position, and the body stayed motionless for the duration of the movie, without any evidence of decerebrates or decorticates rigidity.
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The historic experiments that shaped current theories about the pathophysiology of death by hanging were reviewed, including respiratory asphyxia, interruption to cerebral blood flow because of occlusion of vessels in the neck, and cardiac inhibition secondary to nerve stimulation.
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