Anthropometric Angular Measurement to Determine Muscle Tonus in Patients With Peripheral Facial Paralysis (PF)

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00903669
Recruitment Status : Completed
First Posted : May 18, 2009
Last Update Posted : May 18, 2009
Information provided by:
University of Campinas, Brazil

Brief Summary:
The current study sought to determine the reliability of the rehabilitation protocol using the labial commissure angle (LCA) as an indicator of both muscle tonus and therapeutic success. The investigators hypothesized that this measurement would provide objective data regarding the efficacy of rehabilitation for these challenging patients.

Condition or disease
Peripheral Facial Paralysis

Detailed Description:
CONTEXT AND OBJECTIVE: In cases of peripheral facial paralysis (PFP), diminished facial movements and their resultant cosmetic sequelae may have significant emotional repercussions, in addition to producing pronounced functional deficits. Abnormal muscle proprioception and deviation of the nasal-labial filter may also interfere with articulation of the labiodental and bilabial phonemes, thus diminishing speech intelligibility. In relation to stomatognathic functions, weakened labial occlusion decreases intraoral pressure, thereby hindering liquid retention in the buccal cavity and giving rise to vestibular stasis on the paralyzed side. The aim of this study was to evaluate the reliability of the labial commissure angle (LCA) as an anthropometric marker for objectively assessing changes in facial muscle tonus.

Study Type : Observational
Actual Enrollment : 20 participants
Observational Model: Case-Only
Time Perspective: Prospective
Official Title: Anthropometric Angular Measurement to Determine Muscle Tonus in Patients With Peripheral Facial Paralysis
Study Start Date : January 2005
Primary Completion Date : September 2005
Study Completion Date : February 2006

Resource links provided by the National Library of Medicine

U.S. FDA Resources

Peripheral Facial Paralysis (PFP)
Patients who are diagnosed with peripheral facial paralysis.

Information from the National Library of Medicine

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Ages Eligible for Study:   20 Years to 70 Years   (Adult, Senior)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Non-Probability Sample
Study Population
Patients diagnosed with PFP treated in the Hospital of Unicamp

Inclusion Criteria:

  • age range between 20 and 70 years
  • incomplete PFP (Degree IV)
  • integral facial nerve (FN)

Exclusion Criteria:

  • systemic disease
  • potentially aggravating the PFP (neurological, degenerative, endocrinological)

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00903669

Universidade estadual de Campinas
Campinas, São Paulo, Brazil, 13081-970
Sponsors and Collaborators
University of Campinas, Brazil
Principal Investigator: Jorge R Paschoal Universidade Estadual de Campinas UNICAMP

Responsible Party: Jorge Rizzato Paschoal, Department of Otolaryngology School of Medical Sciences - UNICAMP Identifier: NCT00903669     History of Changes
Other Study ID Numbers: ATessitore
First Posted: May 18, 2009    Key Record Dates
Last Update Posted: May 18, 2009
Last Verified: May 2009

Keywords provided by University of Campinas, Brazil:
Facial paralysis
Muscle tonus
Stomatognathic system

Additional relevant MeSH terms:
Facial Paralysis
Bell Palsy
Disease Attributes
Pathologic Processes
Neurologic Manifestations
Nervous System Diseases
Signs and Symptoms
Mouth Diseases
Stomatognathic Diseases
Herpesviridae Infections
DNA Virus Infections
Virus Diseases
Facial Nerve Diseases
Cranial Nerve Diseases