The risk of cardiac events in patients who received concomitant levofloxacin and amiodarone

Objectives: Levofloxacin and amiodarone are both known to prolong the QT interval. This study was conducted to estimate the risk of cardiac events in patients receiving concomitant levofloxacin and amiodarone. Methods: The study included patients who were admitted to a large academic community medic...

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Main Authors: Luigi Brunetti, Seung-Mi Lee, Ronald G. Nahass, David Suh, Benjamin Miao, John Bucek, Dongwon Kim, Ok-Kyu Kim, Dong-Churl Suh
Format: Article
Language:English
Published: Elsevier 2019-01-01
Series:International Journal of Infectious Diseases
Online Access:http://www.sciencedirect.com/science/article/pii/S1201971218345648
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author Luigi Brunetti
Seung-Mi Lee
Ronald G. Nahass
David Suh
Benjamin Miao
John Bucek
Dongwon Kim
Ok-Kyu Kim
Dong-Churl Suh
author_facet Luigi Brunetti
Seung-Mi Lee
Ronald G. Nahass
David Suh
Benjamin Miao
John Bucek
Dongwon Kim
Ok-Kyu Kim
Dong-Churl Suh
author_sort Luigi Brunetti
collection DOAJ
description Objectives: Levofloxacin and amiodarone are both known to prolong the QT interval. This study was conducted to estimate the risk of cardiac events in patients receiving concomitant levofloxacin and amiodarone. Methods: The study included patients who were admitted to a large academic community medical center from 1/2012 to 12/2015 and received both levofloxacin and amiodarone at some point during their hospitalization. Patients received concomitant or non-concomitant levofloxacin and amiodarone during hospitalization. The primary outcome was the occurrence of cardiac events during therapy. The secondary outcome was the proportion of patients with an electrocardiogram performed before and after initiation of therapy. Odds ratios for cardiac events were calculated using a multivariable logistic regression model with and without adjusting for the study variables. The concomitant group was further evaluated for predictors of the primary outcome using multivariable logistic regression. Results: This study included 240 patients, 164 (68.3%) of whom received concomitant levofloxacin and amiodarone. Concomitant medication therapy was associated with a greater than six-fold increased risk of cardiac events after adjusting for the study variables (Odds Ratio = 6.20; 95% Confidence Interval = 1.34–28.62). Conclusions: Patients receiving concomitant amiodarone and levofloxacin experienced a five-fold increase in cardiac events compared to patients given either medication alone. Keywords: Levofloxacin, Amiodarone, Cardiac risk, Cardiac death, QT interval
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spelling doaj.art-b063aa564c014be99a9f1e6f7e5e9c5e2022-12-21T22:08:41ZengElsevierInternational Journal of Infectious Diseases1201-97122019-01-01785056The risk of cardiac events in patients who received concomitant levofloxacin and amiodaroneLuigi Brunetti0Seung-Mi Lee1Ronald G. Nahass2David Suh3Benjamin Miao4John Bucek5Dongwon Kim6Ok-Kyu Kim7Dong-Churl Suh8Rutgers University School of Pharmacy, Piscataway, NJ, USA; RWJ Barnabas Health-Robert Wood Johnson University Hospital Somerset, Somerville, NJ, USARutgers University School of Pharmacy, Piscataway, NJ, USA; Chung-Ang University College of Pharmacy, Seoul, South KoreaRutgers University School of Pharmacy, Piscataway, NJ, USA; RWJ Barnabas Health-Robert Wood Johnson University Hospital Somerset, Somerville, NJ, USAColumbia University School of Public Health, New York, NY, USARutgers University School of Pharmacy, Piscataway, NJ, USARWJ Barnabas Health-Robert Wood Johnson University Hospital Somerset, Somerville, NJ, USAChung-Ang University College of Pharmacy, Seoul, South KoreaChung-Ang University College of Pharmacy, Seoul, South KoreaChung-Ang University College of Pharmacy, Seoul, South Korea; Corresponding author at: Chung-Ang University College of Pharmacy, 84 Heukseok-ro, Dongjak-gu, Seoul 06974, South Korea.Objectives: Levofloxacin and amiodarone are both known to prolong the QT interval. This study was conducted to estimate the risk of cardiac events in patients receiving concomitant levofloxacin and amiodarone. Methods: The study included patients who were admitted to a large academic community medical center from 1/2012 to 12/2015 and received both levofloxacin and amiodarone at some point during their hospitalization. Patients received concomitant or non-concomitant levofloxacin and amiodarone during hospitalization. The primary outcome was the occurrence of cardiac events during therapy. The secondary outcome was the proportion of patients with an electrocardiogram performed before and after initiation of therapy. Odds ratios for cardiac events were calculated using a multivariable logistic regression model with and without adjusting for the study variables. The concomitant group was further evaluated for predictors of the primary outcome using multivariable logistic regression. Results: This study included 240 patients, 164 (68.3%) of whom received concomitant levofloxacin and amiodarone. Concomitant medication therapy was associated with a greater than six-fold increased risk of cardiac events after adjusting for the study variables (Odds Ratio = 6.20; 95% Confidence Interval = 1.34–28.62). Conclusions: Patients receiving concomitant amiodarone and levofloxacin experienced a five-fold increase in cardiac events compared to patients given either medication alone. Keywords: Levofloxacin, Amiodarone, Cardiac risk, Cardiac death, QT intervalhttp://www.sciencedirect.com/science/article/pii/S1201971218345648
spellingShingle Luigi Brunetti
Seung-Mi Lee
Ronald G. Nahass
David Suh
Benjamin Miao
John Bucek
Dongwon Kim
Ok-Kyu Kim
Dong-Churl Suh
The risk of cardiac events in patients who received concomitant levofloxacin and amiodarone
International Journal of Infectious Diseases
title The risk of cardiac events in patients who received concomitant levofloxacin and amiodarone
title_full The risk of cardiac events in patients who received concomitant levofloxacin and amiodarone
title_fullStr The risk of cardiac events in patients who received concomitant levofloxacin and amiodarone
title_full_unstemmed The risk of cardiac events in patients who received concomitant levofloxacin and amiodarone
title_short The risk of cardiac events in patients who received concomitant levofloxacin and amiodarone
title_sort risk of cardiac events in patients who received concomitant levofloxacin and amiodarone
url http://www.sciencedirect.com/science/article/pii/S1201971218345648
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