aero-digestive endoscopy dr. vishal sharma. history
TRANSCRIPT
Aero-digestive Endoscopy
Dr. Vishal Sharma
History
Bozzini (1806): angled speculum with mirror using wax
candle, first examined larynx
Manuel Garcia (1854): Using dental mirror, hand mirror &
sunlight visualized his own vocal cords
Adolph Kussmaul (1868): 1st rigid esophagoscopy
Gustav Killian (1897): 1st rigid bronchoscopy
Chevalier Jackson (early 1900s): father of modern rigid
endoscopy
Oscar Kleinsasser (1960): suspension micro-laryngoscope
Shigeto Ikeda (1966): first fiberoptic bronchoscopy &
oesophagoscopy
H.H. Hopkins: rigid fiberoptic telescopes
Adolph Kussmaul
Gustav Killian
Chevalier Jackson
Shigeto Ikeda
Direct Laryngoscopy
Chevalier Jackson’s Direct Laryngoscope
Anterior commissure Direct Laryngoscope
Boyce’s Endoscopy position
Supine position with head elevated by 10 cm
Tongue Base visualized
Epiglottis visualized
Vocal cords visualized
Micro-laryngoscopy
Kleinsasser Microlaryngoscope
Chest Piece
Laryngoscope fixed
Microscope focused
Indications for Laryngoscopy
Diagnostic Therapeutic Biopsy of suspected malignancy Foreign body
in larynx & pyriform fossa removal (larynx
& pyriform
fossa)
Examination of hidden areas: Excision
biopsy anterior commissure, laryngeal of
benign
ventricle, subglottis, infrahyoid laryngeal lesion
epiglottis, pyriform fossa apex Dilatation of
laryngeal stricture
Unsuccessful indirect laryngoscopy
Micro-laryngoscopy Direct Laryngoscopy
Binocular vision Monocular vision
Better illumination Less illumination
Magnification No magnification
Better precision Less precision
Both hands are free 1 hand holds scope
Video attachment possible No
Can be combined with microscopic Laser
No
Rigid Bronchoscopy
Rigid Bronchoscope
Close-up of proximal end
Bronchoscope introduced
At laryngeal inlet
Epiglottis identified
Vocal cords identified
Scope passed through glottis after 900 rotation
Scope rotated back
Tracheal rings identified
Carina identified
Bronchopulmonary segments
Endoscopy position
Scope in Right bronchus
Scope in Right bronchus
Scope in Right bronchus
Scope in Left bronchus
Scope in Left bronchus
Scope in Left bronchus
Flexible Bronchoscope
Indications for Bronchoscopy
1. Broncho-alveolar lavage for C/S, AFB, cytology
2. Biopsy of tracheo-bronchial tumours
3. Investigation of chronic cough, hemoptysis, Lt
vocal cord palsy, atelectasis, obstructive
emphysema, mediastinal growths
4. Removal tracheo-bronchial of foreign bodies
5. Removal of retained respiratory secretions
Rigid Bronchoscopy Flexible
Also functions as airway No
Better for removal of foreign body No
Allows use of Laser No
Visualizes up to 3rd bronchial division 5th division
Not done under local anesthesia Done
Not done in cervical spine problems Done
More risky & traumatic Safer
Not done for trans-bronchoscopic biopsy Done
Rigid Oesophagoscopy
Rigid Oesophagoscope
Jackson scope Negus scope
Distal illumination Proximal illumination
No markings Marked
Narrow Broad
Constant diameter Tapered
Single bulb Double bulb
Epiglottis visualized
Right pyriform fossa
Cricopharyngeal sphincter
Upper Oesophagus
Middle Oesophagus
Lower Oesophagus
Indications for Oesophagoscopy
1. Investigation of dysphagia, haematemesis,
GERD, neck node metastasis of unknown origin
2. Oesophageal foreign body removal
3. Excision biopsy of benign oesophageal lesions
4. Dilatation of oesophageal strictures
5. Sclerotherapy for oesophageal varices
6. Insertion of palliative oesophageal feeding tube
Rigid Oesophagoscopy Flexible
Better for cricopharynx examination No
Better for removal of foreign body No
Allows use of Laser No
Not good for lower oesophageal examn Good
Not done under local anesthesia Done
Not done in cervical spine problems Done
More risky & traumatic Safer
Thank You