-transparent.png){kind=logo}
The injection of botulinum toxin (BT) into laryngeal muscles has proven to be an effective treatment for spasmodic dysphonia (SD), a neurologic disorder characterized by intermittent vocal spasms during speech. BT treatment has reduced abnormal laryngeal muscle hyperactivity in SD patients, when measured by subjective visual rating scales. This paper utilizes images obtained from endoscopic laryngeal video recordings to quantify changes in pre- and post-injection parameters of 17 patients following bilateral BT injections. A previous study, utilizing perceptual, acoustic, and laryngeal aerodynamic measures, showed significant improvements following treatment with BT. In addition, post-injection vocal rest, rather than vocalization, enhanced therapeutic responses. Results of these measures are compared with data from the image analyses and those parameters that proved to be the most useful are highlighted.
D L Wong, and
J C Irish, and
S G Adams, and
L C Durkin, and
E J Hunt
July 1993,
The Western journal of medicine,
D L Wong, and
J C Irish, and
S G Adams, and
L C Durkin, and
E J Hunt
April 2000,
Archives of otolaryngology--head & neck surgery,
D L Wong, and
J C Irish, and
S G Adams, and
L C Durkin, and
E J Hunt
April 2005,
Zhonghua er bi yan hou tou jing wai ke za zhi = Chinese journal of otorhinolaryngology head and neck surgery,
D L Wong, and
J C Irish, and
S G Adams, and
L C Durkin, and
E J Hunt
January 2004,
The Cochrane database of systematic reviews,
D L Wong, and
J C Irish, and
S G Adams, and
L C Durkin, and
E J Hunt
January 1996,
The Annals of otology, rhinology, and laryngology,
D L Wong, and
J C Irish, and
S G Adams, and
L C Durkin, and
E J Hunt
April 1998,
The Annals of otology, rhinology, and laryngology,
D L Wong, and
J C Irish, and
S G Adams, and
L C Durkin, and
E J Hunt
January 2024,
The Laryngoscope,
D L Wong, and
J C Irish, and
S G Adams, and
L C Durkin, and
E J Hunt
November 2003,
Physical medicine and rehabilitation clinics of North America,
D L Wong, and
J C Irish, and
S G Adams, and
L C Durkin, and
E J Hunt
August 1988,
Neurology,
D L Wong, and
J C Irish, and
S G Adams, and
L C Durkin, and
E J Hunt
September 2005,
Archives of otolaryngology--head & neck surgery,
