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PubMed2002

Bilateral mixed laryngoceles: simultaneous strobovideolaryngoscopy and external video examination.

A music medicine practice affords a unique opportunity to diagnose and treat laryngeal music performers. Strobovideolaryngoscopic (SVL) and external video examination of the voice professional or brass instrument player may focus on the vocal folds, yet abnormalities of the supraglottis, neck, and thorax should be appreciated and documented. Laryngoceles are uncommon laryngeal disorders but may occur in up to 5% of benign laryngeal lesions. While many laryngoceles are asymptomatic, they may cause a cough, hoarseness, stridor, sore throat, pain, snoring, or globus sensation. In particular, musicians who play brass instruments are at high risk for laryngocele development. We highlight two patients with symptomatic laryngoceles to present anatomical, historical, classification, epidemiological, diagnostic, and management considerations.

Cysts↗
PubMed2002

Prolonged ulcerative laryngitis.

Acute and prolonged laryngitis commonly are diagnosed and treated by primary care physicians. These ailments come to the attention of the otolaryngologist when symptoms are prolonged despite treatment. Since the beginning of 1991, the senior authors (RTS, JRS) have recognized a clinical syndrome defined by prolonged hoarseness, prolonged laryngeal inflammation, and vocal fold ulceration. Patients are frequently young, nonsmokers, and nondrinkers who have had an upper respiratory infection prior to, or associated with, the onset of laryngeal symptomatology. Patients may be affected for up to 1 year despite aggressive medical therapy. This review of 14 patients highlights the features of this previously undescribed entity.

Adult↗
PubMed2003

Instrumental and perceptual evaluations of two related singers.

The primary goal of this study was to characterize a performer's singing and speaking voice. One woman was not admitted to a premier choral group, but her sister, who was comparable in physical characteristics and background, was admitted and provided a valuable control subject. The perceptual judgment of a vocal coach who conducted the group's auditions was decisive in discriminating these 2 singers. The singer not admitted to the group described a history of voice pathology, lacked a functional head register, and spoke with a voice characterized by hoarseness. Multiple listener judgments and acoustic and aerodynamic evaluations of both singers provided a more systematic basis for determining: 1) the phonatory basis for this judgment; 2) whether similar judgments would be made by groups of vocal coaches and speech-language pathologists; and 3) whether the type of tasks (e.g., sung vs. spoken) would influence these judgments. Statistically significant differences were observed between the ratings of vocal health provided by two different groups of listeners. Significant interactions were also observed as a function of the types of voice samples heard by these listeners. Instrumental analyses provided evidence that, in comparison to her sister, the rejected singer had a compromised vocal range, glottal insufficiencies as assessed aerodynamically and electroglottographically, and impaired acoustic quality, especially in her speaking voice.

Acoustics↗
PubMed1995

Psychogenic spasmodic dysphonia: a case study with expert opinions.

Spasmodic (spastic) dysphonia (SD) is considered by some to be a neurologic syndrome and by others a symptom complex of multiple etiologies, neurologic and psychogenic. A case of a 26-year-old female psychiatric nurse with psychogenic SD (PSD) is presented. The dysphonia was alleviated within one session of voice therapy. Psychogenic etiology was established by the author, based on three diagnostic criteria--symptom incongruity, symptom reversibility, and symptom psychogenicity. Seven nationally recognized voice experts listened to audio-recorded samples of the patient's pre- and posttherapy voice during conversational speech. The experts agreed that the dysphonia was psychogenic and characterized it as staccato-like speech, effortful phonation, and interrupted flow of speech; six characterized it with intermittent voice arrests (voice stoppages); five with hoarse-harsh voice; and four with waxing and waning, strained-strangled phonation. These are often described as salient features of SD. Nevertheless, the experts disagreed among themselves as to whether the dysphonia was characteristic of SD and should be labeled as such. The author argues that as long as the voice characteristics and pathophysiologic findings that constitute SD are not well delineated, and as long as the diagnosis of SD is based on symptoms alone, patients with psychogenic or poorly understood voice disorders are likely to be misdiagnosed with organic (neurologic) SD and thus subjected to undue medical treatment. The author also argues that the debate over the etiology of SD can be resolved if SD is considered a neurologic syndrome, PSD a nonorganic phonatory disorder that mimics the syndrome, and if the voice symptoms and pathophysiologic characteristics of SD are well defined and agreed on.

Adult↗
PubMed1997

Speech performance of adult cantonese-speaking laryngectomees using different types of alaryngeal phonation.

The purpose of the present study was to compare the speech performance of four types of alaryngeal phonation-electrolaryngeal (EL), pneumatic artificial laryngeal (PA), tracheoesophageal (TE), and standard esophageal (SE) speech-by adult Cantonese-speaking laryngectomees. Subjective ratings of (1) voice quality, (2) articulation proficiency, (3) quietness of speech, (4) pitch variability, and (5) overall speech intelligibility were given by eight naive individuals who had no prior experience with any form of alaryngeal speech. Results indicated that SE and TE speech was perceived to be more hoarse than PA and EL speech. EL speech was associated with significantly less pitch variability, and PA speakers produced speech with the least amount of perceived noise. However, articulation proficiency and overall speech intelligibility were found to be comparable in all four types of alaryngeal speakers.

Aged↗
PubMed1997

The speaker's formant in male voices.

Spectral analysis of vowels during connected speech can be performed using the spectral intensity distribution within critical bands corresponding to a natural scale on the basilar membrane. Normalization of the spectra provides the opportunity to make objective comparisons independent from the recording level. An increasing envelope peak between 3,150 and 3,700 Hz has been confirmed statistically for a combination of seven vowels in three groups of male speakers with hoarse, normal, and professional voices. Each vowel is also analyzed individually. The local energy maximum is called "the speaker's formant" and can be found in the region of the fourth formant. The steepness of the spectral slope (i.e. the rate of decline) becomes less pronounced when the sonority or the intensity of the voice increases. The speaker's formant is connected with the sonorous quality of the voice. It increases gradually and is approximately 10 dB higher in professional male voices than in normal male voices at neutral loudness (60 dB at 0.3 min). The peak intensity becomes stronger (30 dB above normal voices) when the overall speaking loudness is increased to 80 dB. Shouting increases the spectral energy of the adjacent critical bands but not the speaker's formant itself.

Humans↗
PubMed1998

The vocal athlete and endotracheal intubation: a management protocol.

Endotracheal intubation is associated with significant laryngeal sequelae that range in severity from mild hoarseness to life-threatening tracheal stenosis. Although the most severe trauma appears to be related to prolonged intubation, even short-term intubation (< 1 day) can adversely affect laryngeal and vocal function. Concern is warranted for all intubated patients, but particularly for the vocal athlete whose livelihood and identity depend on optimal vocal function. It is proposed that the vocal athlete faced with endotracheal intubation risk warrants careful multidisciplinary management. A number of intubation risk factors have been identified in the literature; however, clinical management of vocal athletes who undergo intubation has not been addressed. In medical settings where adverse intubation outcomes can lead to litigation, this clinical management protocol is expected to improve the probability of favorable voice outcome following endotracheal intubation.

Counseling↗
PubMed1998

Functional impact of nodules: a case-comparison study.

Patients diagnosed with nodules (NO = 40) in a large university hospital clinic and an age-stratum matched nondiseased group (ND = 200) described adverse outcomes of vocal impairment on work and work-related communications. NOs were significantly more likely than NDs to report symptoms of hoarseness (73% vs. 26%), high-note difficulty (70% vs. 20%), difficulty speaking with a lower voice (53% vs. 13%) and a tired voice (50% vs. 10%), and their greatest source of physical discomfort was associated with scratchiness (61% vs. 3%). The average number of symptoms was four in NOs and less than one in NDs. Nodule patients were most concerned about the effects their voice problem would have on their future career (78% vs. 24%) and 49% of NOS reported their voice problem had an adverse work effect in the past compared with 4% of NDs. Having a voice condition limited current job performance in 39% of the NO group but only in 2% of the ND group. The results suggest that a diagnosis of nodules plays a major role in disrupting careers and work activities and that available educational programs and additional research are needed for improving their functional ability and preventing adverse outcomes in the lives of individuals with voice disorders.

Adolescent↗
PubMed1998

Voice disorders in patients with suspected laryngo-pharyngeal reflux disease.

Many symptoms have been recognized in association with laryngo-pharyngeal reflux disease (LPRD), but reports of perceptual voice disorders in this condition have been lacking to date. Forty-nine patients with suspected LPRD were studied for five specific perceptual voice characteristics, and these characteristics were compared to the same characteristics in individuals who had never seen an Otolaryngologist for a voice disorder or throat problem (controls). Sixteen of the suspected LPRD patients also underwent 24-hour pH probe studies. All patients with suspected LPRD had significantly increased abnormal perceptual voice characteristics (musculoskeletal tension, hard glottal attack, glottal fry, restricted tone placement, and hoarseness) compared to the controls. Statistical objective differences between the two groups was demonstrated by the presence of increased shimmer in patients with suspected LPRD compared to controls. The differential diagnosis between functional voice disorders and LPRD may be complex, and perceptual parameters may overlap. Interdisciplinary evaluation is advocated.

Female↗
PubMed1999

A report on alterations to the speaking and singing voices of four women following hormonal therapy with virilizing agents.

Four women aged between 27 and 58 years sought otolaryngological examination due to significant alterations to their voices, the primary concerns being hoarseness in vocal quality, lowering of habitual pitch, difficulty projecting their speaking voices, and loss of control over their singing voices. Otolaryngological examination with a mirror or flexible laryngoscope revealed no apparent abnormality of vocal fold structure or function, and the women were referred for speech pathology with diagnoses of functional dysphonia. Objective acoustic measures using the Kay Visipitch indicated significant lowering of the mean fundamental frequency for each woman, and perceptual analysis of the patients' voices during quiet speaking, projected voice use, and comprehensive singing activities revealed a constellation of features typically noted in the pubescent male. The original diagnoses of a functional dysphonia were queried, prompting further exploration of each woman's medical history, revealing in each case onset of vocal symptoms shortly after commencing treatment for conditions with medications containing virilizing agents (eg, Danocrine (danazol), Deca-Durabolin (nandrolene decanoate), and testosterone). Although some of the vocal symptoms decreased in severity with the influences from 6 months voice therapy and after withdrawal from the drugs, a number of symptoms remained permanent, suggesting each subject had suffered significant alterations in vocal physiology, including muscle tissue changes, muscle coordination dysfunction, and propioceptive dysfunction. This retrospective study is presented in order to illustrate that it was both the projected speaking voice and the singing voice that proved so highly sensitive to the virilization effects. The implications for future prospective research studies and responsible clinical practice are discussed.

Adult↗
PubMed1999

Effects of sound-field frequency modulation amplification on reducing teachers' sound pressure level in the classroom.

Voice problems are a frequent difficulty that teachers experience. Common complaints by teachers include vocal fatigue and hoarseness. One possible explanation for these symptoms is prolonged elevations in vocal loudness within the classroom. This investigation examined the effectiveness of sound-field frequency modulation (FM) amplification on reducing the sound pressure level (SPL) of the teacher's voice during classroom instruction. Specifically, SPL was examined during speech produced in a classroom lecture by 10 teachers with and without the use of sound-field amplification. Results indicated a significant 2.42-dB decrease in SPL with the use of sound-field FM amplification. These data support the use of sound-field amplification in the vocal hygiene regimen recommended to teachers by speech-language pathologists.

Adult↗
PubMed2001

Vagus nerve stimulation (VNS) for treatment-resistant depression: efficacy, side effects, and predictors of outcome.

This open pilot study of vagus nerve stimulation (VNS) in 60 patients with treatment-resistant major depressive episodes (MDEs) aimed to: 1) define the response rate; 2) determine the profile of side effects; and, most importantly; 3) establish predictors of clinical outcome. Participants were outpatients with nonatypical, nonpsychotic, major depressive or bipolar disorder who had not responded to at least two medication trials from different antidepressant classes in the current MDE. While on stable medication regimens, the patients completed a baseline period followed by device implantation. A 2-week, single blind, recovery period (no stimulation) was followed by 10 weeks of VNS. Of 59 completers (one patient improved during the recovery period), the response rate was 30.5% for the primary HRSD(28) measure, 34.0% for the Montgomery-Asberg Depression Rating Scale (MADRAS), and 37.3% for the Clinical Global Impression-Improvement Score (CGI-I of 1 or 2). The most common side effect was voice alteration or hoarseness, 55.0% (33/60), which was generally mild and related to output current intensity. History of treatment resistance was predictive of VNS outcome. Patients who had never received ECT (lifetime) were 3.9 times more likely to respond. Of the 13 patients who had not responded to more than seven adequate antidepressant trials in the current MDE, none responded, compared to 39.1% of the remaining 46 patients (p =.0057). Thus, VNS appears to be most effective in patients with low to moderate, but not extreme, antidepressant resistance. Evidence concerning VNS' long-term therapeutic benefits and tolerability will be critical in determining its role in treatment-resistant depression.

Adolescent↗
PubMed1999

Cardiorespiratory variables and sensation during stimulation of the left vagus in patients with epilepsy.

We studied physiological and sensory effects of left cervical vagal stimulation in six adult patients receiving this stimulation as adjunctive therapy for intractable epilepsy. Stimulus strength varied among subjects from 0.1 to 2.1 microCoulomb (microC) per pulse, delivered in trains of 30-45 s at frequencies from 20 to 30 Hz; these stimulation parameters were standard in a North American study. The stimulation produced no systematic changes in ECG, arterial pressure, breathing frequency tidal volume or end-expiratory volume. Five subjects experienced hoarseness during stimulation. Three subjects with high stimulus strength (0.9-2.1 microC) recalled shortness of breath during stimulation when exercising; these sensations were seldom present during stimulation at rest. No subjects reported the thoracic burning sensation or cough previously reported with chemical stimulation of pulmonary C fibers. Four of six subjects (all those receiving stimuli at or above 0.6 microC) experienced a substantial reduction in monthly seizure occurrence at the settings used in our studies. Although animal models of epilepsy suggest that C fibers are the most important fibers mediating the anti-seizure effect of vagal stimulation, our present findings suggest that the therapeutic stimulus activated A fibers (evidenced by laryngeal effects) but was not strong enough to activate B or C fibers.

Adult↗
PubMed1989

Primary management of limited laryngeal cancer by radiotherapy and surgical salvage: results of 164 cases treated in a district hospital.

A total of 164 patients with limited laryngeal cancer (all sites, stages T1T2T3, N0N1) were treated between 1966 and 1979 at the Derbyshire Royal Infirmary by a policy of radical radiation therapy and surgical salvage. Of 122 cases of glottic cancer, 32 recurred of which 12 were successfully salvaged by laryngectomy. The corrected actuarial survival at 6 years was T1 95.1%, T2 83.0% and T3 31.3%. Of 38 cases of supraglottic cancer, 18 recurred but none was salvaged. The corresponding survival rates were T1 84.6% and T2 36.4%. A number of factors were analysed by a multivariate stepwise regression method to assess their impact upon radiation failure. These were: tumour status, nodal disease, the presence of symptoms other than hoarseness, histological grade, age, length of history and dose (TDF). Significant determinants in glottic cancer were tumour stage (P less than 0.0005), nodal disease (P less than 0.05) and presence of symptoms (P less than 0.05). In supraglottic cancer dose (P less than 0.001) and severity of symptoms (P less than 0.005) were predictive. It is concluded that this policy was effective in the management of T1 and T2 glottic cases and that T1 supraglottic cases responded well if an adequate radiation dose was delivered. The more advanced stages in both sites, however, did not fare as well, especially if initially node positive and in the presence of severe pretreatment symptoms. Surgical salvage had little impact on overall survival in this group.

Adult↗
PubMed1996

Retropharyngeal abscess associated with tuberculosis of the cervical spine.

A rare case of retropharyngeal abscess in association with tuberculosis of the upper cervical spine is presented. The disease was associated with tuberculosis of the sternum. The onset was insidious. Fever, neck pain, dysphagia and hoarseness of voice were the presenting features. Conservative treatment with anti-tuberculosis drugs resulted in good outcome. The case is discussed and pertinent literature is reviewed.

Adult↗
PubMed2002

The elephant trunk technique: operative results in 100 consecutive patients.

OBJECTIVES: To describe morbidity and mortality in patients undergoing the elephant trunk (ET) implantation as the first stage in the repair of their mega aorta and to assess determinants for the occurrence of complications. METHODS: One hundred consecutive patients undergoing an ET implantation between 1984 and June 2001 were retrospectively analyzed. The ET was implanted as an extension of an isolated aortic arch (1%), an aortic valve replacement+ascending aorta+arch (14%), a root replacement+ascending aorta+arch (37%) and an ascending aorta+arch (48%). Indications for surgery were acute aortic dissection (1%), an inflammatory aneurysm (3%), chronic post-dissection (31%) or degenerative (65%) aneurysm. Marfan syndrome was present in six patients. For cerebral protection, we used isolated deep hypothermic circulatory arrest (7%), deep hypothermic circulatory arrest combined with uni- or bilateral antegrade cerebral perfusion (18%) or isolated uni- or bilateral antegrade cerebral perfusion (75%). Uni- and multivariate analysis was used. RESULTS: There were no intraoperative deaths. Hospital mortality was 8%. The causes of death were cardiac in one, rupture of a remote aneurysm in three, tamponade in one and sepsis in three. After multivariate analysis, no single factor emerged as a risk factor for hospital mortality. Permanent and transient neurologic dysfunction occurred in 4 and 2%, respectively. Univariate analysis showed the operative period before 1990 (P=0.029) and emergency (P=0.018) as significant factors for postoperative neurologic dysfunction; after stepwise logistic regression analysis, only emergent operation retained significance (P=0.005). Permanent hoarseness, total atrioventricular block requiring pacemaker implantation and re-thoracotomy for bleeding occurred in 17, 2 and 30%, respectively. CONCLUSIONS: The first step in the repair of a mega aorta, the implantation of an ET, can be performed with a low mortality and an acceptable morbidity. The risk of central neurologic damage is higher in emergency interventions.

Adult↗
PubMed2002

Vocal cord paralysis after open-heart surgery.

Vocal cord paralysis is a known entity often described as a complication of neck surgery. A less frequent site of injury to the recurrent laryngeal nerve is the chest. The left side is usually more affected than the right side in view of its long intrathoracic segment. Only few cases of right vocal cord paralysis following open-heart surgery are reported in the literature. The purpose of this article is to review the common possible mechanisms of injury to the right recurrent laryngeal nerve following open-heart surgery in order to draw the attention of the caring physician to the clinical significance of such a complication. In fact, transient hoarseness following open-heart surgery may be an ominous sign of recurrent laryngeal nerve injury. It should not be assumed to be secondary to intralaryngeal edema. Several mechanisms of injury to the recurrent laryngeal nerve have been suggested: (1) through central venous catheterization; (2) by traction on the esophagus; (3) by direct vocal cord damage or palsy from a traumatic endotracheal intubation; (4) trauma by compression of the recurrent laryngeal nerve or its anterior branch at the tracheoesophageal groove by an inappropriately sized endotracheal tube cuff; (5) by a faulty insertion of a nasogastric tube; (6) median sternotomy and/or sternal traction pulling laterally on both subclavian arteries; (7) direct manipulation and retraction of the heart during open-heart procedures; (8) hypothermic injury with ice/slush. If vocal cord paralysis was overlooked as a possible complication of open-heart surgery, the patient may suffer from dysphonia in addition to problems of paramount importance such as inefficient cough and aspiration. Although it is true that the incidence of vocal cord paralysis remains very low, yet its presence is alarming and necessitates close follow up on the patient for the possible need of surgical intervention if recovery fails.

Cardiac Surgical Procedures↗
PubMed2003

External vocal fold medialization in patients with recurrent nerve paralysis following cardiothoracic surgery.

OBJECTIVES: Recurrent laryngeal nerve injury is a possible complication following cardiothoracic surgery. Due to insufficient glottal closure, dysphonia and dysphagia with aspiration may occur. The purpose of the study was to outline the effect of vocal fold medialization thyroplasty on voice, swallowing and breathing impairments. METHODS: Between 1999 and 2001, medialization thyroplasty using the titanium implant (TVFMI) according to Friedrich was performed in 14 patients with postoperative left-sided recurrent nerve paralysis (five female and nine male patients, mean age 64 years) by an external approach. Previous surgical procedures comprised six lobectomies (combined with resection and replacement of the subclavian artery in one case), two pneumonectomies, one resection of a schwannoma in the aortopulmonary window, two replacements of the descending aorta, one aortocoronary bypass procedure (with LIMA), and two esophageal resections using Akiyama technique, respectively. Before and after thyroplasty, the patients underwent an otolaryngological/phoniatric examination including videostroboscopy, voice sound analysis, voice range profile measurement, pulmonary function testing, and in selected cases videofluoroscopy of swallowing. RESULTS: Following thyroplasty, all patients reported on subjective improvement of voice, swallowing and breathing functions. Videostroboscopy revealed an improved glottal closure (six complete, six with posterior gap). All voice related parameters (e.g. roughness, breathiness, hoarseness, maximum sound pressure levels of the singing and shouting voices) were significantly improved. CONCLUSIONS: Due to potential risk of recurrent nerve alteration in left-sided intrathoracic procedures, a preoperative and postoperative laryngoscopic examination is recommended. The external medialization of the vocal folds can be regarded as an excellent method for improvement of voice, swallowing and breathing, in particular, when the quality of life is impaired due to persistent recurrent nerve paralysis.

Adult↗