Original article
Vol. 143 No. 3536 (2013)
QTc prolongation in methadone maintenance – the role of HCV infection
- Najibulah Gholami
- Lukas Boesch
- Luis Falcato
- Rudolf Stohler
- Philip Bruggmann
Summary
OBJECTIVES: Several studies have reported prolonged QTc intervals in patients under methadone maintenance treatment, including development of torsade-de-pointes arrhythmia and death. It is still not clear why some patients develop critical QTc extensions while others do not.
METHODS: ECG findings in a convenience sample of 210 methadone-maintained heroin-dependent patients, taking HCV-infection status and methadone dosage into account simultaneously by means of a multiple linear regression model with QTc-interval as the dependent variable.
RESULTS: Prolonged QTc-time is associated with hepatitis C infections (p = 0.005) and higher doses of racemic methadone (p = 0.012).
CONCLUSION: Infection with hepatitis C increases the likelihood of critical QTc prolongation in patients in methadone maintenance treatment.
References
- Mattick RP, Breen C, Kimber J, Davoli M. Methadone maintenance therapy versus no opioid replacement therapy for opioid dependence. Cochrane Database Syst Rev 2009; CD002209.
- Toombs JD, Kral LA. Methadone treatment for pain states. Am Fam Physician. 2005;71:1353–8.
- Eap CB, Crettol S, Rougier JS, Schläpfer J, Sintra Grilo L, Déglon JJ, et al. Stereoselective block of hERG channel by (S)- methadone and QT interval prolongation in CYP2B6 slow metabolizers. Clin Pharmacol Ther. 2007;81:719–28.
- Katchman AN, McGroary KA, Kilborn MJ, Kornick CA, Manfredi PL, Woosley RL, et al. Influence of opioid agonists on cardiac human ether-a-go-go-related gene K(+) currents. J Pharmacol Exp Ther. 2002;303:688–94.
- Krantz MJ, Lewkowiez L, Hays H, Woodroffe MA, Robertson AD, Mehler PS. Torsade de pointes associated with very-high-dose methadone. Ann Intern Med. 2002;137:501–4.
- Krantz MJ, Kutinsky IB, Robertson AD, Mehler PS. Dose-related effects of methadone on QT prolongation in a series of patients with torsade de pointes. Pharmacotherapy. 2003;23:802–5.
- Anchersen K, Clausen T, Gossop M, Hansteen V, Waal H. Prevalence and clinical relevance of corrected QT interval prolongation during methadone and buprenorphine treatment: a mortality assessment study. Addiction. 2009;104:993–9.
- Athanasos P, Farquharson AL, Compton P, Psaltis P, Hay J. Electrocardiogram characteristics of methadone and buprenorphine maintained subjects. J Addict Dis. 2008;27:31–5.
- Fonseca F, Marti-Almor J, Pastor A, Cladellas M, Farré M, de la Torre R, et al. Prevalence of long QTc interval in methadone maintenance patients. Drug Alcohol Depend. 2009;99:327–32.
- Krantz MJ, Baker WA, Schmittner J. Cocaine and methadone: parallel effects on the QTc interval. Am J Cardiol. 2006;98:1121.
- Peles E, Bodner G, Kreek MJ, Rados V, Adelson M. Corrected-QT intervals as related to methadone dose and serum level in methadone maintenance treatment (MMT) patients: a cross-sectional study. Addiction. 2007;102:289–300.
- Roy A, McCarthy C, Kiernan G, McGorrian C, Keenan E, Mahon NG, et al. Increased incidence of QT interval prolongation in a population receiving lower doses of methadone maintenance therapy. Addiction. 2012:1132–9.
- Alter MJ. Prevention of spread of hepatitis C. Hepatology. 2002;36:S93–8.
- Trepo C, Pradat P. Hepatitis C virus infection in Western Europe. J Hepatol. 1999;31(Suppl 1):80–3.
- Matsumori A. Detection of viral genomes in myocarditis. Rinsho Byori. 1995;43:358–64.
- Okabe M, Fukuda K, Arakawa K, Kikuchi M. Chronic variant of myocarditis associated with hepatitis C virus infection. Circulation. 1997;96:22–4.
- Matsumori A. Hepatitis C virus and cardiomyopathy. Herz. 2000;25:249–54.
- Matsumori A. Hepatitis C virus infection and cardiomyopathies. Circ Res. 2005;96:144–7.
- Nordin C, Kohli A, Beca S, Zaharia V, Grant T, Leider J, Marantz P. Importance of hepatitis C coinfection in the development of QT prolongation in HIV-infected patients. J Electrocardiol. 2006;39:199–205.
- Bernardi M, Calandra S, Colantoni A, Trevisani F, Raimondo ML, Sica G, et al. Q-T interval prolongation in cirrhosis: prevalence, relationship with severity, and etiology of the disease and possible pathogenetic factors. Hepatology. 1998;27:28–34.
- Ehret GB, Voide C, Gex-Fabry M, Chabert J, Shah D, Broers B, et al. Drug-induced long QT syndrome in injection drug users receiving methadone: high frequency in hospitalized patients and risk factors. Arch Intern Med. 2006;166:1280–7.
- Goldenberg I, Moss AJ, Zareba W. QT interval: how to measure it and what is “normal.” J Cardiovasc Electrophysiol. 2006;17:333–6.
- Funck-Brentano C, Jaillon P. Rate-corrected QT interval: techniques and limitations. Am J Cardiol. 1993;72:17B–22B.
- Kornick CA, Kilborn MJ, Santiago-Palma J, Schulman G, Thaler HT, Keefe DL, et al. QTc interval prolongation associated with intravenous methadone. Pain. 2003;105:499–506.
- Maremmani I, Pacini M, Cesaroni C, Lovrecic M, Perugi G, Tagliamonte A. QTc interval prolongation in patients on long-term methadone maintenance therapy. Eur Addict Res. 2005;11:44–9.
- Krantz MJ, Mehler PS. Methadone and QT prolongation: a dose-dependent effect? Am J Cardiol. 2004;93:952.
- Martell BA, Arnsten JH, Krantz MJ, Gourevitch MN. Impact of methadone treatment on cardiac repolarization and conduction in opioid users. Am J Cardiol. 2005;95:915–8.
- Pearson EC, Woosley RL. QT prolongation and torsades de pointes among methadone users: reports to the FDA spontaneous reporting system. Pharmacoepidemiol Drug Saf. 2005;14:747–53.