Clinical Focus ›› 2024, Vol. 39 ›› Issue (7): 630-634.doi: 10.3969/j.issn.1004-583X.2024.07.008

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Effect of treatment regimen containing Bedaquiline for drug-resistant tuberculosis on the QT interval of electrocardiogram

Wan Rong1, Li Guangmei1, Ji Yongjing1, Liu Lei2, Cui Cancan2, Li Mingwu1()   

  1. 1. Second Department of Tuberculosis,Kunming Third People's Hospital, Kunming 650041, China
    2. School of Public Health, Dali University, Dali 671003, China
  • Received:2023-11-06 Online:2024-07-20 Published:2024-08-02
  • Contact: Li Mingwu E-mail:ynkmlmw@sina.com

Abstract:

Objective To explore the effect of treatment regimen containing Bedaquiline for drug-resistant tuberculosis on the QT interval of electrocardiogram. Methods A total of 204 patients with drug-resistant tuberculosis admitted in the Department of Tuberculosis, Kunming Third People's Hospital from August 2018 to December 2022 were selected. Eighty-four patients treated with Bedaquiline-containing regimen were included in the observation group. After excluding 4 dropouts and 2 deaths, 78 cases were finally included in the observation group. A total of 120 patients treated with the regimen without Bedaquiline were enrolled in the control group, and finally 115 were eligible (4 dropouts and 1 death).The QT interval and clinical data of two groups at different stages of treatment were compared. Results Compared with the baseline, the QT interval of electrocardiogram in the observation group was significantly higher at the 2 nd, 4 th, 8 th, 12 th, 16 th, 20 th and 24 th weeks of treatment significantly (P<0.05). The QT period of the observation group was significantly longer than that of the control group at the 16 th, 20 th and 24 th week of treatment(P<0.05). In the observation group, there were 15 cases (19.2%, 15/78 ) with QT interval greater than 500 ms, including 7 cases of background regimen containing clofazimine and moxifloxacin. Conclusion Treatment regimen containing Bedaquiline for drug-resistant tuberculosis prolongs QT interval, but the background regimen containing Clofazimine and Quinolones aggravates the prolonged QT interval. Therefore, electrocardiogram monitoring and cardiac examination should be strengthened when using betamethasone in combination with Clofazimine and Quinolones.

Key words: tuberculosis, multidrug-resistant, QT interval prolongation, bedaquiline, clofazimine, quinolone

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