Endoscopy. Pulmonary Endoscopy

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Emma Bryant
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1 Pulmonary 1 Direct visualization of TB tree Developed in 1890 s to remove foreign bodies - rigid metal tube Advances added light system, Sx Flexible fiberoptic scopes introduced in early 1960 s 2 Used by Performed in OR under anesthesia Cannot penetrate as far into TB tree as flexible fiberoptic scope Optics are better than flexible scope (better resolution) 3 1

2 A 90 B 60 C Rigid Flexible 6 2

3 Observation Mobility of vocal cords Patency & mobility of TB tree State of the mucosa Presence of tumors & foreign bodies Presence of secretions Origin of bleeding 7 Aspiration of secretions for Brushing of mucosa: cytology, bacteriology Biopsy of Lobar sampling of Bronchoalveolar lavage (BAL) 8 Placement of 9 3

4 Remove 10 Management of severe hemoptysis Therapy directed at protecting remaining lung Find site, remove blood, clots Instill epinephrine, if mild Balloon catheters to compress bleeding site If massive, may need combination of flexible & rigid scope 11 Endobronchial relief of 12 4

5 Endobronchial radiotherapy Iridium-192 catheter 13 Absence of Absence of experienced Lack of emergency facilities for: 14 Inability to adequately Inability to Cardiac instability Uncontrolled Coagulation abnormalities Uremia Patient 15 5

6 Light source Attachments for teaching Instruments for: a b c 16 Scope - multiple lumens Fiberoptic glass fibers Wires for controlling scope tip Lens Suction Lumen for passing instruments 17 Flexible Fiberoptic Bronchoscope SUCTION TUBING LIGHT SOURCE/ PHOTO CONNECTION CHANNEL OUUTLET LIGHT GUIDE OBJECTIVE LENS CHANNEL PORT EYEPIECE BENDING SECTION CONTROL SECTION CONTROL SECTION 18 6

7 Scope - different size for adults, kids Head of scope Viewing lens Field of vision Focus attachment Fingertip control for suction 19 Head of scope Motion lever for tip Flex down up Diaphragm valve to allow instrument passage 20 Safety Universal Precautions HIV+, TB, Hepatitis Properly HEPA masks Patient in isolation with HEPA mask Proper handling of sharps, body fluids 21 7

8 Informed consent Patient usually sedated, NPO x 6 Valium Versed + Atropine Morphine 22 Local anesthetic to upper airway Lidocaine Oxygen 23 Scope passed through: To above vocal cords Into trachea 24 8

9 While in, can do lots o stuff - Direct vision with forceps for cytology Transbronchial biopsy by passing forceps towards edge of lung (fluoroscopy) to Bx alveolar tissue with needle Bronchoalveolar lavage (BAL) 25 Monitor 26 NPO x CXR (if transbronchial biopsy done) Clean scope (cold sterilize) Inspect scope for damage 27 9

10 Handling of Specimens Brushings Smeared on slide Spray fixer End of brush clipped, put in saline or fixer Sent to lab 28 Handling of Specimens Needle aspiration Flush needle with saline onto slide Spray with fixer Some to jar for cytology If large tissue core Flushed into fixer jar Sent to lab 29 Handling of Specimens Transbronchial biopsy Sample placed on glass slide with saline Into formalin if frozen section to be done Sent to lab 30 10

11 Handling of Specimens BAL 31 Complications Side-effects of medications Laryngospasm 32 Complications Increased airway resistance Cardiac dysrhythmias Laryngeal edema (if no ETT used) 33 11

12 Indications for Mediastinoscopy Assessment of patients with For pre-op assessment Information obtained needed for accurate selection of treatment Establish Dx of other intrathoracic conditions, esp. 34 Equipment for Mediastinoscopy Cautery with forceps Small right-angle retractors Mediastinoscope Biopsy forceps Suction Aspiration needle with syringe Gauze 35 General anesthesia Cuffed ETT Bronchoscopy done immediately prior Ventilate patient by ETT/anesthesia machine 36 12

13 4 cm. Transverse incision made above suprasternal notch Trachea exposed Aortic notch, innominate artery palpated Blunt dissection to open channel to right & left of trachea Scope inserted Inspection of Can do lymph node biopsies 39 13

14 Incision closed with sutures If tumor in LUL - another incision made 2nd intercostal space lateral to sternum (left anterior mediastinal area is blocked by great vessels during center approach) 40 Vascular injury Bleeding, hemorrhage 41 Infection Pneumothorax Left recurrent laryngeal nerve damage 42 14

15 Fiberoptic laryngoscope Shorter version of bronchoscope No suction or operating channel Uses Confirm Insert ETT in patients with 43 15

Chapter 8. Other Important Tests and Procedures. Mosby items and derived items 2011, 2006 by Mosby, Inc., an affiliate of Elsevier Inc.

Chapter 8. Other Important Tests and Procedures. Mosby items and derived items 2011, 2006 by Mosby, Inc., an affiliate of Elsevier Inc. Chapter 8 Other Important Tests and Procedures 1 Introduction Additional important diagnostic studies include: Sputum examination Skin tests Endoscopic examination Lung biopsy Thoracentesis Hematology,