The temporary effect of short-term endotracheal intubation on vocal function

Abstract

The objective of the study was to assess and perceive the vocal and pharyngeal symptoms and acoustic changes of voice after short-term endotracheal intubation and to evaluate the relation between these changes and the endotracheal tube parameters, number of intubation attempts, duration of anaesthesia, experience of anaesthesiologist. A total of 108 patients were evaluated preoperatively, 1-2 and 24 h after extubation. The vocal and pharyngeal symptoms, voice acoustic characteristics and maximum phonation time (MPT) were evaluated to find the relationship with endotracheal tube parameters, number of intubation attempts, duration of anaesthesia, experience of anaesthesiologist. All vocal and pharyngeal symptoms increased significantly at 24 h and remained significantly increased at 24 h after general anaesthesia. The vocal acoustic parameters changed significantly at 1-2 h: decrease of MPT and increase relative average perturbation were recorded. The day after the short-term intubation: only noise to harmony ratio and habitual pitch remains significantly changed. The most important endotracheal tube parameters that affect significantly (P value <0.05) the vocal function were the size of tube, cuff volume and number of intubation attempts. In relation to the anaesthesia, the changes of the acoustic parameters did not associate significantly with the anaesthesia-related parameters. No statistically significant relationship between experience of an anaesthesiologist and changes of the voice after anaesthesia was detected. Though being short-term, endotracheal anaesthesia is an invasive procedure, and its temporary influence on vocal function is important.

Dysphagia, Dysphonia, and Dysarthria Outcomes Among Adults Hospitalized With COVID‐19 Across Ireland

“…This aligns with previous research, which also found a strong link between dysphonia and intubation. 8,11,12 One-quarter (25%) of adults with COVID-19 in acute care referred to SLT presented with dysarthria. Presence of dysarthria has not been a focus of COVID-19 research to date.…”

“…8 Variables associated with post-extubation dysphagia and dysphonia include duration of intubation, number of extubation attempts, and cuff pressure during intubation. [9][10][11][12] Intubation can cause laryngeal injury, including vocal cord paralysis, granuloma, and stenosis all of which could alter swallowing and voice. 13 Some adults require tracheostomy post-extubation to wean from mechanical ventilation and a high incidence of laryngeal injury has been found among adults with tracheostomy.…”

“…Adults requiring intensive care treatment for critical COVID‐19 infection can present with iatrogenic swallowing and voice difficulties 8 . Variables associated with post‐extubation dysphagia and dysphonia include duration of intubation, number of extubation attempts, and cuff pressure during intubation 9–12 . Intubation can cause laryngeal injury, including vocal cord paralysis, granuloma, and stenosis all of which could alter swallowing and voice 13 .…”

Kısa Süreli Endotrakeal Entübasyonun Ses Kalitesi ve Aralığına Etkisi

“…Yine benzer bir çalışmada çalışmaya dahil edilen 108 hastada şikayetlerin 24 saat sonrasında arttığı, MFT'nin azaldığı ve akustik parametrelerin arttığı gözlenmiştir. [10] Bu çalışmada yazarlar kullanılan tübün büyüklüğünün, tübün ucunda bulunan balonun basıncının ve entübasyon sırasında birden fazla kez denenmesinin şikayetleri arttırdığını raporlamışlardır. [10] Çalışmanın verileri incelendiğinde hastaların Bazal Frekans (F0), en tiz frekans olarak ölçülen Maksimum frekans değerinde ve hastaların ses aralığında istatistiksel olarak azalma saptanmıştır.…”

Speech therapy after thyroidectomy

“…For example, the intubation tube may directly irritate the mucosa of the larynx and the trachea. Mechanical injury to the mucosa is also possible (48,49). Other common complications include hemorrhage, infection, and fistula, etc.…”