Voice abnormality in adults with congenital and adult-acquired growth hormone deficiency.
AuthorsMoore, Christopher J
Shalet, Stephen M
Maheshwari, Hiralal G
AffiliationNorth Western Medical Physics, Christie Hospital, Manchester, United Kingdom. email@example.com
MetadataShow full item record
AbstractCONTEXT: Adult males with congenital, untreated, severe GH deficiency (GHD) due to genetic GHRH receptor deficiency exhibit distinctive, high-pitched, and raspy voice characteristics. OBJECTIVE/DESIGN: To determine the physical underpinning of this phenomenon, we performed voice recordings, translarynx impedance measurements, spectral analysis, and estimates of spectral complexity [approximate entropy (ApEn)] in four affected men. Results were compared with those obtained in four men with untreated adult-onset GHD and a normal male population. RESULTS: Congenital GHD subjects had a high-pitched voice with a fundamental frequency typical of normal females (174-266 Hz). Their frequency spectra were characterized by abnormal harmonics, with reversal/interruption of the normal amplitude decay among higher-order harmonics, findings consistent with a creaky quality of the voice. Patients with adult-onset GHD, acquired at ages 31, 38, and 40 yr, had a normal male pitch (fundamental frequency, 117-154 Hz) but pathologically low ApEn values, corresponding to a breathy quality of the voice and suggesting abnormal vocal fold function. A fourth patient who acquired GHD at age 22 yr had a pitch intermediate between male and female, high ApEn, and a spectral pattern similar to the congenital GHD patients. CONCLUSIONS: This study demonstrates an effect of GH on laryngeal size and vocal fold compliance that results in a high pitch and disordered spectral quality. The time of onset of GHD determines which type of abnormality predominates.
CitationVoice abnormality in adults with congenital and adult-acquired growth hormone deficiency. 2005, 90 (7):4128-32 J. Clin. Endocrinol. Metab.
JournalThe Journal of Clinical Endocrinology and Metabolism
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