Artikel
Platin-related Hearing Loss: Further Results from PanCareLIFE
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Veröffentlicht: | 20. September 2023 |
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Gliederung
Abstract
Background: Cisplatin and Carboplatin are widely-used in paediatric cancer treatment. Sensorineural hearing loss (SNHL) is one long-term side-effect. This study utilises a larger sample than previous research in order to investigate risk-factors for platin-related ototoxicity.
Material and methods: Retrospective audiological and treatment data of 997 children and adolescents were gathered with the involvement of 18 pan-European institutions in 7 different countries as part of the PanCareLIFE consortium. Prior hearing loss was excluded. Conductive hearing losses were excluded where identified.
Results: Prevalence rates of clinically-significant hearing loss (=> 2b Münster Classification) after treatment were 49 % (Cisplatin) and 15 % (Carboplatin). Where Cisplatin was administered prior to Carboplatin, prevalence rose to 76 %. Frequencies in the high and extended high-frequency range were predominantly affected, with mean threholds between 25-35 dB HL. Mean thresholds at frequencies below 3 kHz remained lower than 20 dB HL. No significant air-bone gap was apparent.
50 % of clinically-significant hearing losses began within 3 years of start of treatment (Kaplan-Meier analysis). No significant difference in time-to-onset at different frequencies within the standard range was found. Further analyses, including multifactorial analysis to account for platin doses, presence of cranial radiotherapy, age and date of diagnosis will be conducted.
Discussion: Analysis of this large sample was able to confirm the significant risk of SNHL posed by platin-based chemotherapeutics. Some quantitative and qualitative variation were present in this multi-centre retrospective dataset.
Conclusion: This large sample confirms that platin-based chemotherapeutics, especially cisplatin, pose a significant risk of SNHL and underlines the necessity of audiological monitoring during and after end of chemotherapy.
Acknowledgement: This work was supported by the PanCareLIFE consortium that has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no. 602030.
Text
Background
Cisplatin and carboplatin are widely-used in paediatric cancer treatment. Sensorineural hearing loss (SNHL) is one long-term side-effect (Langer et al. [1], amongst others). This study utilises a larger sample than previous research in order to investigate risk-factors for platin-related ototoxicity as part of the PanCareLIFE consortium.
Material and Methods
Retrospective audiological and treatment data of 933 children and adolescents treated with cisplatin and/or carboplatin (mean age at diagnosis 8.3 years, 55 % male) were gathered with the involvement of 18 pan-European institutions in 7 different countries. Prior hearing loss was excluded. Conductive hearing losses were excluded where identified.
Mean cumulative cisplatin dose was 390 mg/m2 (body surface area); mean carboplatin dose was 3025 mg/m2.
Results
Prevalence rates of clinically-significant hearing loss (=> 2b Münster Classification [2]) after treatment were 49 % (cisplatin alone) and 15 % (carboplatin alone). Where cisplatin was administered prior to carboplatin, prevalence rose to 76 %. Frequencies in the high and extended high-frequency range were predominantly affected, with mean thresholds in the group with significant hearing loss of 40 dB HL at 4 kHz and 50-60 dB HL at 6 and 8 kHz. Mean thresholds at frequencies below 3 kHz remained lower than 20 dB HL. No significant asymmetry or air-bone gap was apparent.
An ordinal regression was highly significant for larger cumulative cisplatin dose and younger age on hearing classification after the end of treatment (p=0.000) and not significant for sex or cumulative carboplatin dose. A MANOVA was also highly significant for cumulative cisplatin dose and younger age on thresholds at 4 and 8 kHz (N=563, p=0.000 to p=0.009, good model fit), though not at 1 and 2 kHz. The effect size was moderate for both factors.
50 % of clinically-significant hearing losses began within 3 years of start of treatment (Kaplan-Meier analysis). No significant difference in time-to-onset at different frequencies within the standard range was found. Further analyses are planned as part of this study.
Discussion
Analysis of this large sample was able to confirm the significant risk of high-frequency SNHL posed by treatment involving cisplatin in this large sample. Some quantitative and qualitative variation was present in this multi-centre retrospective dataset.
Conclusions
This large sample confirms that treatment involving cisplatin poses a significant risk of SNHL, especially at a younger age, and underlines the necessity of audiological monitoring during and after the end of chemotherapy.
Acknowledgement
This work was supported by the PanCareLIFE consortium that has received funding from the European Union’s Seventh Framework Programme for research, technological development and demonstration under grant agreement no. 602030.
References
- 1.
- Langer T, am Zehnhoff-Dinnesen A, Radtke S, Meitert J, Zolk O. Understanding platinum-induced ototoxicity. Trends Pharmacol Sci. 2013;34(8):458-69.
- 2.
- Schmidt CM, Bartholomaus E, Deuster D, Heinecke A, Dinnesen AG. Die „Münsteraner Klassifikation“. Eine neue Einteilung der Hochtonschwerhörigkeit nach Cisplatingabe[The "Muenster classification" of high frequency hearing loss following cisplatin chemotherapy]. HNO. 2007;55(4):299-306.