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Abstract
Since the book “Final Exit: The Practicalities of Self-Deliverance and Assisted Suicide for the Dying” was published in 1991, there has been a worldwide increase in the number of cases of suicidal asphyxiation using helium gas. However, no domestic reports have been published thus far. Recently, we encountered a case of asphyxial suicide by inhalation of helium from inside a plastic bag. Subsequently, we reviewed the records of the Scientific Crime Analysis System of National Police Agency of Korea. There were 17 cases of helium-associated asphyxial suicides between January 1, 2000 and June 30, 2012. The average age of the deceased was 30.6 years with a male to female ratio of approximately 5:1. Thirteen of 17 such deaths occurred in the victims’ houses. In all cases, the method of death involved placing a plastic bag over the head with a hose attached to helium tanks. In 6 of 17 cases, the decedents had psychiatric disorders such as depression. As neither characteristic signs of death nor conventional methods for detecting helium gas exist, a thorough investigation of the death scene and the decedents’ environment is extremely vital for confirming death due to helium asphyxiation.
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REFERENCES
1. Polson CJ, Gee DJ. Plastic bag suffocation. Z Rechtsmed. 1972; 70:184–90.
2. Scho ¨n CA, Ketterer T. Asphyxial suicide by inhalation of helium inside a plastic bag. Am J Forensic Med Pathol. 2007; 28:364–7.
3. Humphry D. Final Exit: The practicalities of Self-Deliverance and Assisted Suicide for the Dying. New York: Dell;1991.
4. Ogden RD, Wooten RH. Asphyxial suicide with helium and a plastic bag. Am J Forensic Med Pathol. 2002; 23:234–7.
5. Gallagher KE, Smith DM, Mellen PF. Suicidal asphyxiation by using pure helium gas: case report, review, and discussion of the influence of the internet. Am J Forensic Med Pathol. 2003; 24:361–3.
6. Gilson T, Parks BO, Porterfield CM. Suicide with inert gases. addendum to Final Exit. Am J Forensic Med Pathol. 2003; 24:306–8.
7. Auwaerter V, Perdekamp MG, Kempf J, et al. Toxicological analysis after asphyxial suicide with helium and a plastic bag. Forensic Sci Int. 2007; 170:139–41.
8. Grassberger M, Krauskopf A. Suicidal asphyxiation with helium: report of three cases. Wien Klin Wochenschr. 2007; 119:323–5.
9. Marzuk PM, Tardiff K, Hirsch CS, et al. Increase in suicide by asphyxiation in New York City after publication of Final Exit. N Engl J Med. 1993; 329:1508–10.
10. Humphry D. Supplement to Final Exit: The Latest How-To and Why of Euthanasial Hastened Death. Junction City, OR: Norris Lane Press;2000.
11. Humphry D. Final Exit: The practicalities of Self-Deliverance and Assisted Suicide for the Dying. 3rd ed.New York: Dellta;2002.
12. Humphry D. Final Exit: The practicalities of Self-Deliverance and Assisted Suicide for the Dying. 3rd ed.Addendum, Junction City, OR: ERGO;2009.
13. Austin A, Winskog C, van den Heuvel C, et al. Recent trends in suicides utilizing helium. J Foresic Sci. 2011; 56:649–51.
14. Ogden RD. Observation of two suicides by helium inhalation in a prefilled environment. Am J Forensic Med Pathol. 2010; 31:156–61.
15. Howard MO, Hall MT, Edwrads JD, et al. Suicide by asphyxiation due to helium inhalation. Am J Forensic Med Pathol. 2011; 32:61–70.
16. Haddix TL, Harruff RC, Reay DT, et al. Asphyxial suicides using plastic bags. Am J Forensic Med Pathol. 1996; 17:308.
17. Fonseca CA, Auerbach DS, Suarez RV. The forensic investigation of propane gas asphyxiation. Am J Forensic Med Pathol. 2002; 23:167–9.
18. Avis SP, Archibald JT. Asphyxial suicide by propane inhalation and plastic bag suffocation. J Forensic Sci. 1994; 39:253–6.
19. Yoshitome K, Ishikawa T, Inagaki S, et al. A case of suffocation by an advertising ballon filled with pure helium gas. Acta Med Okayama. 2002; 56:53–5.
20. Musshoff F, Hagemeier L, Kirschbaum K, et al. Two cases of suicide by asphyxiation due to helium and argon. Forensic Sci Int. 2012; 223:27–30.
21. Schaff JE, Karas RP, Marinetti L. A gas chromatography-thermal conductivity detection method for helium detection in postmortem blood and tissue specimens. J Anal Toxicol. 2012; 36:112–5.
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 | Fig. 1.The case of asphyxiation due to helium inhalation in Jeju 2008. The deceased was found on the bed (a). The tube connected with 22.5 ℓ Helium gas bottle (b). The book “The peaceful pill handbook (Philip Nitschke & Fiona Stewart, 2007) was found on the bed (c). The described part of suicide method using helium in the book (d). |
 | Fig. 2.The case of asphyxiation due to helium inhalation in car, Seoul 2009. The deceased was found on back seat of car (a). The 2 bottles of helium gases were found on the seat of car (b). |
 | Fig. 3.The case of asphyxiation due to helium inhalation in Seoul 2011. The deceased was found whose head and trunk fully covered with plastic bag (a). The clear plastic tubing connected the plastic bag to the 2 helium tanks (b). |
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