Long-term sensorineural hearing deficit following radiotherapy in patients suffering from nasopharyngeal carcinoma: A prospective study.

@article{Ho1999LongtermSH,
  title={Long-term sensorineural hearing deficit following radiotherapy in patients suffering from nasopharyngeal carcinoma: A prospective study.},
  author={Wai-kuen Ho and William Ignace Wei and Dora L. W. Kwong and Jonathan Shun-Tong Sham and Patricia Tai and Anthony Po Wing Yuen and Dennis Kin Kwok Au},
  journal={Head & neck},
  year={1999},
  volume={21 6},
  pages={547-53}
}
BACKGROUND This was a prospective study to evaluate the effect of radical external irradiation on inner ear function after treatment of nasopharyngeal carcinoma. METHODS Pure tone audiograms were performed at regular intervals before, after, and up to 4.5 years following completion of radiotherapy. RESULTS Two hundred ninety-four patients (526 ears) were included. Within 3 months after radiotherapy, deterioration of bone conduction threshold at 4 kHz and pure tone average (average of 0.5… CONTINUE READING