Suicide attempts with tricyclic antidepressants

Trisiklik antidepresanlar (TCA) analjeziklerden sonra en yaygın kullanılan ve sıklıkla akut zehirlenmelere neden olan ilaçlardır. Bu çalışmada üç intihar amaçlı zehirlenme vakasında hastaların idrar ve kan örneklerinde toksikolojik tarama testleri GC/MS ve FPIA metodları ile yapıldı. Birinci vakada ilk gün amitriptilin, asetaminofen ve kodein seviyesi sırasıyla 1135 ng/ml serum, 14.42 ng/ml serum ve 72.9 ng/ml idrar,takibeden üç günde ise amitriptilin düzeyi 505, 429 ve 370 ng/ml serum olarak ölçüldü. İkinci vakada,1. ve 2. gün amitriptilin seviyesi 883.56 ve 137.35 ng/ml serum olarak, üçüncü vakada ise imipramin düzeyi 2560 ng/ml serum olarak ölçüldü. Birinci ve ikinci vakalar 4 gün içerisinde tamamen iyileşirken üçüncü hasta 36 saat sonra hayatını kaybetti. Akut zehirlenmelerde acil tedavinin erken ve toksikolojik analizlerin de güvenilir ve hızlı yapılmasının hayati derecede önemli olduğu gösterilmiştir.

Trisiklik antidepresanlarla intihar girişimleri

Tricyclic antidepressant drugs (TCA) are the second widely used drugs after the analgesics, and involve in acute poisoning cases. In this study we measured unusual high dose of TCA levels in three suicidal poisoning cases. Toxicological screening on patients urine and blood samples were performed with GC/MS, and the quantitation of drugs were done with GC/MS and FPIA methods. Amitriptyline, acetaminophen, and codeine levels were 1135 ng/ml blood, 14.42 (ig/ml blood, and 72.9 ig/ml urine respectively in case 1. Amitriptyline levels were found as 505, 429, and 370 ng/ml blood for consequent three days. In Case 2, amitriptyline levels were 883.56 and 137.35ng/ml blood for two days. In Case 3, initial imipramine level was 2560 ng/ml blood. First two patients were fully recovered 4 days after the incident. The third patient died 36 hours after the admission. In acute poisoning cases, early emergency teratment, obtaining rapid and reliable toxicological laboratory results were considered vitally important in poisoning cases.

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  • 1. Hom, K.F., Wax, P.M. Tricyclic antidepressants, Emergency Toxicology (Viccellio P, ed.), Lippincott-Raven, Philadelphia, p.817-828 (1998).
  • 2. Isacsson, G., Holmgren, P., Wasserman, D. "Use of antidepressants among people committing suicide in Sweden". Br. Med. J. 308: 506-509 (1994).
  • 3. Isacsson G, Bergman U, Rich CL. "Antidepressants, depression and suicide: an analysis of the San Diego study." J Affect Disord. 32(4): 277-86 (1994).
  • 4. Montgomery SA. "Suicide and antidepressants." Ann N Y Acad Sci. 836: 329-38 (1997).
  • 5. Cheeta S, Schifano F, Oyefeso A, Webb L, Ghodse AH. "Antidepressant-related deaths and antidepressant prescriptions in England and Wales, 1998-2000." Br J Psychiatry. 184: 41-7(2004).
  • 6. Shah R, Uren Z, Baker A, Majeed A. 'Trends in suicide from drag overdose in the elderly in England and Wales, 1993-1999." Int J Geriatr Psychiatry. 17(5): 416-21 (2002).
  • 7. Soriano T, Jurado C, Menendez M, Repetto M. "Improved solid-phase extraction method for systematic toxicological analysis in biological fluids." J Anal Toxicol. 25(2): 137-43 (2001).
  • 8. Deniz G, Saygi Ş. "Application of therapeutic drug monitoring in health centers." Gazi Ecz.Fak.Der. 6(2): 119-127, (1989).
  • 9. Yakistiran, S. The detection of some drugs in acute poisonings. PhD Thesis. Ankara U. Department of Forensic Toxicology, Ankara, Turkey (2004).
  • 10. Hail, W.D., Mant, A., Mitchell, P.B. "Association between antidepressant prescribing and suicide in Australia, 1991-2000: Trend analysis". Br. Med. J. 326: 1-5 (2003).
  • 11. Jonsson A, Holmgren P, Ahlner J. "Fatal intoxications in a Swedish forensic autopsy material during 1992-2002." Forensic Sci Int. 143: 53-9 (2004).
  • 12. Grunebaum MF, Ellis SP, Li S, Oquendo MA, Mann JJ. "Antidepressants and suicide risk in the United States, 1985-1999." J Clin Psychiatry. 65: 1456-62 (2004).
  • 13. Rcith D, Fountain J, Tilyard M, McDowell R. "Antidepressant poisoning deaths in New Zealand for 2001." N Z Med J. 116(1184): U646 (2003).
  • 14. Ellenhorn, J.M., Schonwald, S., Ordog, G. Ellenhorn's Medical Toxicology: Diagnosis and Treatment of Human Poisoning (Ellenhorn, M.J., ed.). Williams and Wilkins a Waverly Company, Baltimore, p.415 (1997).
  • 15. Varley CK. "Sudden death of a child treated with imipramine. Case study." J Child Adolesc Psychopharmacol. 10(4): 321-5 (2000).
  • 16. Prescott LF. "Paracetamol overdosage: Pharmacological considerations and clinical managament". Drugs, 25: 290-314 (1983).
  • 17. Rumack BH. "Acetaminophen overdose in young children." AmJ.Dis.Child. 138: 428-433 (1984).
  • 18. Moffat, A.C., Jackson, J.V., Moss, M.S. Clarke's Isolation and Identification of Drugs, (consulting editors Jackson JV, Moss MS, Widdop B), Published by The Pharmaceutical Press, London, p.490-491 (1986).
  • 19. Reynolds, J.E.F. (eds.) Martindale, The Extra Pharmacopoeia, The Pharmaceutical Press, London, p. 1297-1299 (1989).
  • 20. Reynolds, J.E.F. (eds.) Martindale, the extra pharmacopoeia, Published by The Pharmaceutical Press, London, p. 1069-1071 (1993).
  • 21. Gosselin RE, Smith RP, Hodge HC. Clinical Toxicology of Commercial Products. 5th ed. Williams & Wilkins, Baltimore, p.52-61 (1984).
  • 22. Baselt, R.C., Cravey, R.H. Disposition of Toxic Drugs and Chemicals in Man, Published by Year Book Medical Publishers Inc, p.214-218 (1989).
  • 23. Ankarberg, P.H. "Antidepressant prescribing. Antidepressants do not reduce suicide rates" Br. Med. J. 327: 288-289 (2003).
  • 24. Battersby MW, O'Mahoney JJ, Beckwith AR, Hunt JL. "Antidepressant deaths by overdose." Aust N Z J Psychiatry. 30(2): 223-8 (1996).
  • 25. Matos ME, Burns MM, Shannon MW. "False-positive tricyclic antidepressant drug screen results leading to the diagnosis of carbamazepine intoxication." Pediatrics. 105(5): E66 (2000).