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Updated: May 1, 2026

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Subcutaneous Neurotrophin 4 Infusion Using Osmotic Pumps or Direct Muscular Injection Enhances Aging Rat Laryngeal Muscles
Published on: June 13, 2017
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How the operated larynx ages.
E Crosetti1, P Garofalo2, C Bosio3
1ENT Dept., Martini Hospital, Torino, Italy;
Summary
Open partial laryngectomy (HOPL) can impair laryngeal function, but long-term outcomes show manageable dysphagia and dysphonia. Aspiration pneumonia (AP) is more common early post-surgery and decreases over time.
Area of Science:
- Otolaryngology
- Geriatric Medicine
- Surgical Oncology
Background:
- Open partial laryngectomy (HOPL) is a common surgical procedure for laryngeal cancer.
- Post-operative laryngeal function often deteriorates over time, impacting swallowing and voice.
- Long-term functional outcomes after HOPL in elderly patients require further investigation.
Purpose of the Study:
- To evaluate laryngeal functional outcomes at least 10 years after open partial laryngectomy (HOPL).
- To assess the incidence of aspiration pneumonia (AP) and its association with dysphagia.
- To analyze the impact of surgical intervention type and extent on dysphagia, dysphonia, and voice handicap.
Main Methods:
- Retrospective cohort study of 80 elderly patients who underwent HOPL.
- Objective and subjective assessments of laryngeal function, including swallowing and voice.
- Analysis of aspiration pneumonia (AP) incidence and its correlation with dysphagia severity.
Main Results:
- Eight patients (10%) experienced aspiration pneumonia (AP), with four having recurrent episodes.
- A significant association was found between AP and the severity of dysphagia (p < 0.001).
- Dysphagia was more pronounced than in age-matched controls but less than anticipated; voice handicap correlated with glottic resection extent.
Conclusions:
- Laryngeal function remains impaired after HOPL, but does not significantly affect long-term quality of life.
- Aspiration pneumonia (AP) incidence is higher in the early post-operative period and diminishes over subsequent years.
- The type and extent of surgical intervention significantly influence dysphagia and voice outcomes post-HOPL.
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