This paper reports a study on short-time subharmonic pitch breaks in vocal fold vibration, which are found to be a common feature of the human voice in spoken language. The observed pitch breaks correspond to a change in periodicity of the electrolaryngograph (Lx) signal. This paper presents a nonlinear dynamical system capable of producing time-series with subharmonic pitch breaks. The resulti...

BACKGROUND self-assessment of the impact of vocal deviation in the quality of life of erudite singers. AIM to verify whether the presence of vocal complaints in erudite singers produces quality of life handicap in the use of singing voice and whether this handicap is related to gender, age, vocal classification or time of singing. METHOD fifty-nine professional erudite choir singers answere...

Unilateral vocal fold paralysis is a common clinical problem which frequently causes severe dysphonia. Various treatment options exist for this condition, with the type I thyroplasty being one of the more commonly performed surgical procedures for vocal rehabilitation. The Voice-Related Quality of Life (V-RQOL) Measure is a validated outcomes instrument for voice disorders. This study measured ...

Vocal cord paralysis associated with goiter usually indicates the presence of a malignancy. Pediatric patients retain significant thymic tissue that regresses only later in life. This thymic tissue can develop significant hyperplasia during an acute autoimmune process. We describe a case of a 17-year-old girl who presented with a goiter secondary to severe Graves' disease and a 2-month history ...

OBJECTIVES This study aims to investigate the effect of primary surgery on the morbidity of reoperative thyroid surgery. PATIENTS AND METHODS Fifty-seven patients (14 male, 43 female; mean age 41 years; range 21 to 70 years), who underwent reoperative thyroid surgery in our clinic between January 2007 and January 2012 were retrospectively analyzed in terms of vocal cord paralysis, temporary o...

IMPORTANCE A reliable procedure is needed to solve the problem of difficult airway in patients with bilateral vocal cord paralysis without adversely affecting patient "voice quality." OBJECTIVES To compare the results of laser-assisted posterior cordotomy with diathermy-assisted posterior cordotomy for bilateral vocal cord paralysis in regard to dyspnea severity, voice quality, and aspiration...

OBJECTIVES This study aims to evaluate the demographic and clinical characteristics of patients with idiopathic and non-idiopathic vocal cord paralysis (VCP). PATIENTS AND METHODS This retrospective cohort was performed on data extracted from medical files of 92 consecutive patients (43 males, 49 females; median age 52.1±23.1 years; min. 1 - max. 87) with VCP diagnosed in the otorhinolaryngol...