Objective: The toxicity associated with the use of kanamycin includes irreversible hearing loss. There are limited data describing the relationship between hearing loss and kanamycin pharmacokinetics (PK). We explored the association of kanamycin PK with hearing loss in patients on MDR-TB treatment.Design: We prospectively recruited patients on kanamycin-based MDR-TB treatment in Cape Town. Hearing thresholds from 0.25 to 16 kHz were tested at baseline and at 4, 8 and 12 weeks. We determined kanamycin concentrations at steady-state in serial plasma samples over 10 h, and explored factors associated with hearing loss.Study sample: One hundred and two participants including 58 (56.9%) men had analysable audiometric data; median age was 34.9 years, 65 (63.7%) were HIV-positive, and 24 (23.5%) had been treated for MDR-TB previously. Results: Eighty-four participants (82.4%) developed hearing loss. We found a 3% (95% CI: 1-6%, p = 0.028) increased risk of cochleotoxicity for each 10 µg h/L increase in 0-10 h AUC. Conclusion: We describe a high incidence of hearing loss in MDR-TB patients treated with kanamycin, with higher AUC0-10 significantly associated with hearing loss.
Objective: The toxicity associated with the use of kanamycin includes irreversible hearing loss. There are limited data describing the relationship between hearing loss and kanamycin pharmacokinetics (PK). We explored the association of kanamycin PK with hearing loss in patients on MDR-TB treatment.Design: We prospectively recruited patients on kanamycin-based MDR-TB treatment in Cape Town. Hearing thresholds from 0.25 to 16 kHz were tested at baseline and at 4, 8 and 12 weeks. We determined kanamycin concentrations at steady-state in serial plasma samples over 10 h, and explored factors associated with hearing loss.Study sample: One hundred and two participants including 58 (56.9%) men had analysable audiometric data; median age was 34.9 years, 65 (63.7%) were HIV-positive, and 24 (23.5%) had been treated for MDR-TB previously. Results: Eighty-four participants (82.4%) developed hearing loss. We found a 3% (95% CI: 1-6%, p = 0.028) increased risk of cochleotoxicity for each 10 µg h/L increase in 0-10 h AUC. Conclusion: We describe a high incidence of hearing loss in MDR-TBpatients treated with kanamycin, with higher AUC0-10 significantly associated with hearing loss.
Authors: Ann Sturdy; Anna Goodman; Ricardo J José; Angela Loyse; Marie O'Donoghue; Onn Min Kon; Martin J Dedicoat; Thomas S Harrison; Laurence John; Marc Lipman; Graham S Cooke Journal: J Antimicrob Chemother Date: 2011-06-03 Impact factor: 5.790
Authors: R van Altena; J A Dijkstra; M E van der Meer; J F Borjas Howard; J G W Kosterink; D van Soolingen; T S van der Werf; J W C Alffenaar Journal: Antimicrob Agents Chemother Date: 2017-02-23 Impact factor: 5.191
Authors: Eleonoor A R Theunissen; Wouter A Dreschler; Merel N Latenstein; Coen R N Rasch; Sieberen van der Baan; Jan Paul de Boer; Alfons J M Balm; Charlotte L Zuur Journal: Ann Otol Rhinol Laryngol Date: 2014-05-12 Impact factor: 1.547