SynthesisHead & neck2026
The Performance of Automatic Speaking Valves and Fixation Devices Enabling Hands-Free Speech Following Total Laryngectomy-A Systematic Review.
Synthesis in Head & neck, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
1 citing paper in PubMed, 1 synthesis or guideline pooled it.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
10 authors.
Funding
Abstract
backgroundThe percentage of daily automatic speaking valve use (AU) in laryngectomized patients has remained at ~25% since their invention. To increase this percentage, understanding the performance of existent devices is essential. Therefore, we reviewed studies reporting AU, fixation device lifetime (FDL), compliance, and voice and speech assessment outcomes (VSAOs).
methodsStudies published until 23 April 2025 were included. Quality assessment was performed using RoB2, ROBINS-I, and JBI tools.
resultsTwenty studies were included, which were of poor methodological quality. AU and FDL were 3-13.25 h/day and 0.17-24 h/day. Baseline daily ASV compliance rate was 25%, increasing short-term but decreasing long-term. Reasons for non-compliance were inadequate fixation, skin problems, and voicing being too tiresome. There were no significant differences across ASVs in VSAOs.
conclusionNo single ASV or fixation device outperformed others. Personalized approaches, tailored to ASV experience, tracheostoma anatomy, and patient needs, may increase AU, FDL, and long-term compliance.
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Registered trials
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