Factors Affecting the Device Life of Voice Prosthesis in Laryngectomized Patients

Background: Voice restoration with a voice prosthesis has recently become popular among laryngectomized patients due to good voice quality and functional outcomes. An important limitation, however, is the need to periodically replace these devices. Factors affecting prosthesis lifespan differ between countries and regions. We assessed determinants of replacement frequency in Japan. Methods: test and Kruskal-Wallis test. Results: Twenty-four patients consented to this study and were surveyed about device lifespan. Twenty-one male patients and three female patients underwent voice prosthesis insertion for secondary voice restoration after total laryngectomy. The mean duration before replacement was 85 ± 36 (range 14-434) days. Total follow-up duration and tracheal dryness were both significantly associated with device lifespan. Conclusion: Learning to properly manage the VP over time and preventing tracheal dryness are required to prolong voice prosthesis lifespan in Japan.