2. ANATOMY OF TRACHEA
Trachea or wind pipe is a cartilaginous
tube that connects the pharynx and
larynx to the lungs, allowing the
passage of air.
Trachea extends from larynx (at the
level of C6) and branches into two
primary bronchi (at the level of T4-T5).
It is located anterior to the esophagus.
3. STRUCTURE
• Trachea contains rings of hyaline cartilage which are C shaped,
connected to each other by the smooth trachealis muscle.
• C shaped design of the trachea helps to ensure that the trachea will
not collapse.
• And the rings are joined vertically by a band of fibrous connective
tissue – The annular ligament of trachea.
• At the top of trachea the cricoid cartilage attaches it to the larynx –
the only complete ring.
4.
5. • The crico tracheal ligament connects the cricoid cartilage with the
1st ring of trachea.
• Trachealis muscle overlies esophageal muscle and forms the
posterior wall of trachea.
• Trachea – length - 11 cm.
• Inner diameter – 1.5 to 2 cms.
• Outer diameter – 2.1 to 2.7 cms.
• Number of cartilages – 16 to 20.
6. WALL OF TRACHEA
The layers of tracheal
wall, from deep to
superficial are
1.Mucosa
2.Sub mucosa
3.Hyaline
cartilage
4.Adventitia
7. Mucosa
Consists of pseudo-stratified ciliated columnar epithelium with
goblet cells that produce mucus.
It warms and removes foreign particles from the air as it flows
through the trachea.
Submucosa
Consists of areolar connective tissue that contains seromucous
glands and their ducts.
The glands secretes a combination of water and mucus to that
secreted by the goblet cells.
Hyaline cartilage
A cartilaginous layer containing C-shaped cartilage rings.
Adventitia
Band of loose connective tissue that loosely bind the trachea to the
esophagus and other nearly organs.
8. TRACHEA - RELATIONS
CERVICAL TRACHEAL
POSTERIOR
Esophagus, Trachealis muscle
ANTERIOR
2nd and 4th rings are covered by the isthmus of thyroid.
LATERAL
2 lateral lobes (thyroid gland)
Posterior
13. TRACHEOSTOMY – DEFINITION
Operative procedure that creates a surgical airway in the cervical
trachea.
Surgical procedure to bypass the airway in the patient with upper
airway obstruction, to make tracheobronchial toilet easier in the
patient with decreased consciousness or for the need of
mechanical ventilation.
14. Used in 2 types of conditions
1.Acute setting – usually in emergency to obtain an
airway and in ventilated patients who are having
difficulty in weaning.
2.Chronic setting – usually when the patient is to be
ventilated for the longer term.
15. INDICATIONS
GENERAL
1. To bypass an obstructed upper airway.
2. To clean and remove secretions from airway.
3. To more easily and usually more safely, deliver oxygen to the lungs.
1. AIRWAY BYPASS
Severe inflammation of face, neck and larynx.
Tracheal injury
Upper airway tumour
Neck radiotherapy
Facial trauma – multiple fractures
Severe head and neck operating procedures
16. 2. BRONCHIAL TOILET
Head trauma with consciousness disturbances
and ineffective cough
Tracheobronchitis with an edema and lot of
secretions
Thoracic trauma with ineffective cough
Post surgical procedure with inadequate cough
3. EASIER VENTILATION
Prolonged ventilation after intubation >7days.
To reduce anatomic dead space and increases
the chance for mechanical ventilation withdrawal
Neuro muscular diseases (GBS,MG,etc)
paralyzing or weakening chest muscles and
diaphragm
COMA (GCS <8, risk of aspiration)
17. PRE OPERATIVE
INFORMED CONSENT – EXPLAIN ABOUT
Operating procedure
Loss of voice when tracheostomy tube is still in
trachea
Complication of procedure
Do blood tests and check levels of CBC, PT, PTT, INR.
18. TYPES OF TRACHEOSTOMY
1.OPEN PROCEDURE
High tracheostomy (cricothyroidectomy)
Low tracheostomy
2. PERCUTANEOUS PROCEDURE
19. PROCEDURE – SURGICAL TRACHEOSTOMY
POSITIONING
Supine with neck extended
over a shoulder roll.
Head is placed over a head
ring.
ANAESTHETIC PREPARATION
Local anaesthetic with 1%
lidocaine with 1:100,000
adrenaline solution.
22. PROCEDURE
Before tracheostomy put patient on 100% FiO2 and continuously monitor
the patient.
Follow strict aseptic process.
Skin preparation with povidine iodine, chlorohexidine.
Sterile drapping.
Good light source and suction apparatus ready and tested to be
functional.
Ambu bag, facemask and bains circuit – standby.
Appropriate sized tracheostomy tubes must be available. If the patient is
obese and has a short, thick neck, a longer tracheostomy tube should be
used.
24. Blunt dissection of
subcutaneous tissue.
Transversely retracted
until the thyroid isthmus
is identified.
25. If the gland lies superior to the 3rd
tracheal ring, it can be bluntly
undermined and retracted to gain
access to the trachea.
If isthmus overlies the 2nd and 3rd
tracheal ring, it must be either
mobilised or a small incision is made
to clear a space for tracheostomy.
26. A window of tracheal tissue is removed. This
window is approximately the size of desired
tracheostomy tube.
The ETT should be withdrawn till it is just
visible above the proximal end of stoma, and
leave ETT in place.
The ETT should not be completely removed
from the airway until the correct placement of
tracheostomy tube is confirmed and secured
Trachea is maintained open with blunt hooks
on the right and left, clean existing secretions
by using suction catheter.
While inserting the tracheostomy tube,
position the axis perpendicular to the TT, after
entering turn the direction parallel to the axis
of trachea, proceed according to the curve of
the TT into the lumen of trachea.
27. Check TT into the lumen of trachea,
the whole latch is released,
assistant hold the TT, then it is fixed
with sutures at the right and left
flanges of TT to the skin of the neck
and installing a ribbon strap around
the neck.
If the incision is too wide, skin is
sutured loosely.
Between TT flange and skin, put a
sterile gauze cushion.
Then TT is connected to the
ventilator and ETT is pulled out.
30. PROCEDURE – PERCUTANEOUS DILATATIONAL
TRACHEOSTOMY
Positioning, anaesthetic preparation and sterile drapping must be
followed as in open tracheostomy.
For percutaneous Tracheostomy, do laryngoscopy and
withdraw ETT till the cuff is just visible below the vocal
cords.
Assist withdrawal and refix ETT temporarily.
31. PDT SET - CONTENTS
• 14 G cannula
• Guide wire set with
introducer
• Initial dilator
• Stiffener
• Single stage dilator
(rhino)
• Trach tube
• Syringe for balloon
inflation
32. • A 1.5cm vertical incision is made at midline
space below cricoid cartilage.
• A minimal dissection is performed onto the
pretracheal tissues in order to push the
thyroid isthmus downward.
• A 14 gauge introducer needle is then
inserted into the trachea with constant
aspiration on the syringe between 1st and
2nd or 2nd and 3rd tracheal rings.
• The successful introduction of the needle
into the trachea confirmed by air bubbles
into the saline filled syringe during
aspiration.
33. Once the introducer needle is
in correct position, a guide wire
is then inserted into the
tracheal lumen.
35. A well lubricated
dilation is performed
by the dilator (rhino).
36. The TT mounted on the dilator is
then threaded over it and
introduced into the tracheal
lumen.
The guide wire and dilator are
removed.
The tracheostomy tube flanges
are then secured with suture
and ties around the neck.
37.
38. POST – OP MANAGEMENT
• Chest X-Ray
• Strong analgesia
• Antibiotics
• Tracheostomy tube care
• Constant supervision for any
bleeding or block
• Suctioning
• Proper humidification by use of
HME or nebulisations.
40. POST OP
EARLY
Infection at operating site
Subcutaneous emphysema
Impaired swallowing function
because of cuff
LATE
Granuloma
Laryngotracheal stenosis
Scarring
Failure to decannulate
42. TRACH TUBE CARE
Inner cannula should be removed and
cleaned every 6 hrs.
TUBE CHANGE
INDICATION – soiled, cuff rupture,
blocked
COMPLICATION – Insertion into a false
passage
AVOID TUBE CHANGE WITHIN 1 WEEK.
CUFF PRESSURE SHOULD BE
MAINTAINED WITHIN 20-25mmHg.
43. TYPES OF TRACH TUBES
Cuffed and uncuffed
Fenestrated and unfenestrated
Metal tracheostomy tube
44. CUFFED AND UNCUFFED TUBES
CUFFED
To protect airway
To allow ventilation
UNCUFFED
Used for patients with tracheal
problems
48. Resolution of pathology that necessitated the tracheostomy
(upper airway obstruction, pneumonia, etc.)
Normal protective laryngeal mechanisms (no aspirations
during normal swallowing, good cough)
No planned further interventions (radiotherapy, head and neck
operations)
No mechanical ventilation.
INDICATIONS
49. METHODS OF DECANNULATION
1.One step method
2.Sequential downsizing : This is a staged procedure when the
tracheostomy is performed for upper airway obstruction. Every 3 to 4 days,
a smaller size tracheostomy tube is inserted and the patient is assessed for
discomfort. If the patient is able to tolerate the smallest tube, the tube is
then capped overnight, the patient is decannulated the next morning.
50. Decannulation equipments
O2 Mask and suction with equipments
Tracheostomy tubes (one same size and one
size smaller)
Sterile gauze or dressing
Intubation tray in case of emergency
Scissors
51. PROCEDURE
Procedure should only be performed between 8am and
4pm during working hours when more help is available.
Monitor the patient continuously
Position: pillow under the shoulder with head tilt and chin
lift.
Explain the procedure to the patient.
Suction tracheostomy and clean stoma.
Undo ties and remove tracheostomy tube.
52.
53. Observe for any respiratory distress
Tachypnea
Stridor
Chest retraction
Tachycardia
Restlessness
Apply occlusive dressing to the stoma site
Reassess patient for signs of respiratory distress
Sit patient up and encourage coughing.
54. FOLLOWING DECANNULATION
Monitor respiratory rate, heart rate, oxygen saturation and work of breathing
Observe for respiratory obstruction during sleep
Encourage coughing to clear secretions
Avoid suctioning the stoma unless otherwise indicated in an emergency
situation as this may cause trauma.
DECANNULATION FAILURE – CAUSES
• Blockage of stomal site with mucous plug because of inadequate cough.
• Tracheobronchomalacia
55. STOMA SITE CARE
DRESSING
The stoma site is covered with a small square
gauze and then by an occlusive dressing.
Stoma site to be assessed daily and cleaned.