Abnormal Laryngeal Vocal Quality in Ectodermal Dysplasia

The role of glottal surface adhesion on vocal folds biomechanics

“…The reduction in the derivative of the airflow rate (or glottal flow derivative GFD as referred to in voice literature) corresponding to an increase in cohesive energy perhaps provides an interesting biomechanical insight. Peterson-Falzone et al (1981) found that the absence of ASL on vocal fold surfaces led to breathy voice in patients of ectodermal dysplasia, whereas it is well known that a smooth and sinusoidal GFD (such as in the absence of ASL in case 1) is correlated with increased breathiness in speech (Epstein 1999). Thus the present results indicate that increased ASL activity can decrease the breathiness in speech by directly decreasing GFD.…”

The role of glottal surface adhesion on vocal folds biomechanics

“…The reduction in the derivative of the airflow rate (or glottal flow derivative GFD as referred to in voice literature) corresponding to an increase in cohesive energy perhaps provides an interesting biomechanical insight. Peterson-Falzone et al (1981) found that the absence of ASL on vocal fold surfaces led to breathy voice in patients of ectodermal dysplasia, whereas it is well known that a smooth and sinusoidal GFD (such as in the absence of ASL in case 1) is correlated with increased breathiness in speech (Epstein 1999). Thus the present results indicate that increased ASL activity can decrease the breathiness in speech by directly decreasing GFD.…”

Rapp-Hodgkin syndrome with palmoplantar keratoderma, glossy tongue, congenital absence of lingual frenum and of sublingual caruncles: Newly recognized findings

“…Since this organ is an ectodermal derivative, its absence can be associated with ectodermal dysplasia and is most likely related to the glossy tongue in our patient. His breathy voice, also common in ectodermal dysplasia, may result from the absence of mucus that covers the vocal folds, leading to reduction in lubrication and to imperfect seal between the medial edges of the folds during the closed phase of the phonatory cycle [Peterson-Falzone et al, 1981]. Cutaneous syndactyly of his toes may be coincidental, because it is quite common in the general population, although the abnormality has been reported in RHS [Summit and Hiatt, 1971;Stasiowska et al, 1981;Rodini et al, 1990].…”

Rapp‐Hodgkin Ectodermal Dysplasia

“…An Italian woman and her daughter were described in two publications (5,6), but all other reports came from the United States. Two reports deal mainly with speech disturbances (4,8) and give few other details about the patients. From a review of available photographs (2.5-7.19).…”

The role of glottal surface adhesion on vocal folds biomechanics

“…The reduction in the derivative of the airflow rate (or glottal flow derivative GFD as referred to in voice literature) corresponding to an increase in cohesive energy perhaps provides an interesting biomechanical insight. Peterson-Falzone et al (1981) found that the absence of ASL on vocal fold surfaces led to breathy voice in patients of ectodermal dysplasia, whereas it is well known that a smooth and sinusoidal GFD (such as in the absence of ASL in case 1) is correlated with increased breathiness in speech (Epstein 1999). Thus the present results indicate that increased ASL activity can decrease the breathiness in speech by directly decreasing GFD.…”

Rapp-Hodgkin syndrome with palmoplantar keratoderma, glossy tongue, congenital absence of lingual frenum and of sublingual caruncles: Newly recognized findings

“…Since this organ is an ectodermal derivative, its absence can be associated with ectodermal dysplasia and is most likely related to the glossy tongue in our patient. His breathy voice, also common in ectodermal dysplasia, may result from the absence of mucus that covers the vocal folds, leading to reduction in lubrication and to imperfect seal between the medial edges of the folds during the closed phase of the phonatory cycle [Peterson-Falzone et al, 1981]. Cutaneous syndactyly of his toes may be coincidental, because it is quite common in the general population, although the abnormality has been reported in RHS [Summit and Hiatt, 1971;Stasiowska et al, 1981;Rodini et al, 1990].…”

Rapp‐Hodgkin Ectodermal Dysplasia

“…An Italian woman and her daughter were described in two publications (5,6), but all other reports came from the United States. Two reports deal mainly with speech disturbances (4,8) and give few other details about the patients. From a review of available photographs (2.5-7.19).…”

The role of glottal surface adhesion on vocal folds biomechanics

“…The reduction in the derivative of the airflow rate (or glottal flow derivative GFD as referred to in voice literature) corresponding to an increase in cohesive energy perhaps provides an interesting biomechanical insight. Peterson-Falzone et al (1981) found that the absence of ASL on vocal fold surfaces led to breathy voice in patients of ectodermal dysplasia, whereas it is well known that a smooth and sinusoidal GFD (such as in the absence of ASL in case 1) is correlated with increased breathiness in speech (Epstein 1999). Thus the present results indicate that increased ASL activity can decrease the breathiness in speech by directly decreasing GFD.…”

Rapp-Hodgkin syndrome with palmoplantar keratoderma, glossy tongue, congenital absence of lingual frenum and of sublingual caruncles: Newly recognized findings

“…Since this organ is an ectodermal derivative, its absence can be associated with ectodermal dysplasia and is most likely related to the glossy tongue in our patient. His breathy voice, also common in ectodermal dysplasia, may result from the absence of mucus that covers the vocal folds, leading to reduction in lubrication and to imperfect seal between the medial edges of the folds during the closed phase of the phonatory cycle [Peterson-Falzone et al, 1981]. Cutaneous syndactyly of his toes may be coincidental, because it is quite common in the general population, although the abnormality has been reported in RHS [Summit and Hiatt, 1971;Stasiowska et al, 1981;Rodini et al, 1990].…”

Rapp‐Hodgkin Ectodermal Dysplasia

“…An Italian woman and her daughter were described in two publications (5,6), but all other reports came from the United States. Two reports deal mainly with speech disturbances (4,8) and give few other details about the patients. From a review of available photographs (2.5-7.19).…”