videolaryngo

1. Titl
e Role of Video Laryngostroboscopy in
Hoarseness of
voice patients
Dr.Sajja Nagarjuna
Department of
otorhinolaryngology
snagarjuna77@gmail.com
Guide: Dr.Sanjay Kishve

2. AI
M
• To evaluate laryngeal stroboscopy
findings in hoarseness of voice
patients.
• Objectives :
To study the stroboscopic parameters of
the vocal folds in various vocal fold
pathologies.

3. INTRODUCTI
ON
• Most laryngeal disorders cause hoarseness of voice. Hoarseness
is more prevalent in certain groups, such as teachers and voice
professionals, chronic smokers and alcoholics. It can affect all
age groups and both the genders. In addition to the impact on
health, it has an effecton quality of life.
• There are various techniques to evaluate laryngeal pathologies. Visual
inspection of the larynx is mandatory for diagnosis or exclusion of
laryngeal disease. Indirect laryngoscopy (IDL) is the basic method for
laryngeal evaluation in OPD while Videolaryngoscopy (VLS) is used to
examine the larynx at the office with more clarity and data
preservation facility. Videolaryngostroboscopy (VLSS) is another
important modality for evaluation of various cases of laryngeal
pathologies. Using a stroboscope gives additional information about
the vibratory pattern of the vocal fold mucosa and improves the
accuracy of diagnosis. It has led to changes in diagnosis in
approximately 30% of cases when compared to examination with
continuous lightalone.
• As the effective treatment of laryngeal pathologies is based on
the correct diagnosis, this study evaluates the role of laryngeal
stroboscopy finding in various etiologies for hoarse on voice
and thus helps in early diagnosis and prompt treatment.

4. METHODOLO
GY
• Study Site:
ESIC MEDICAL COLLEGE HOSPITAL
• Study Population:
OUT PATIENTS ATTENDING ENT
DEPARTMENT OFA TERTIARY CARE
HOSPITAL
• Study Design:
PROSPECTIVE, OBSERVATIONAL, CROSS-
SECTIONAL STUDY
• Sample size
Reference/Formula used(compulsory):
n = Z2 × p(1 – p) / e2 n = Z2× 0.06(1 – 0.06)/
(0.05)2 n = 87

5. • Inclusion Criteria:
o Patient presenting with Dysphonia for >15 days
o Patients with structural vocal cord lesions.
o Patients with functional dysphonia.
• Exclusion Criteria:
o SystemicNeuromuscular disorder, such asParkinson’s
disease, motor neurondisease, huntington’s
disease, multiple sclerosis and myasthenia
gravis.
o Patients below 16years of age

6. • Methodology indetail:
 All the patients attending ENT OPD with positive history of
hoarseness of
voice are included in the study
 Written informed consent would be obtained from the study
participants
 They are subjected to clinical examination along with a detailed
history and a clinical diagnosis is established
 Videostroboscopy is done in study the findings of vocal cords in
these patients
• Statistical Methods:
Data will be transferred from data collection sheet to excel sheet and
simple statistics will be used to calculate prevalence and other
parameters
• Novelty ofStudy-
Characteristics of stroboscopy can be evaluated for quality of
mucosal pathology, depth of involvement, quantification of the
stroboscopic examination, and categorize the lesion on the basis of
their site of various pathologies related to Hoarseness of voice