TRACHEOSTOMY IN FULL DETAILS......
TRACHEOSTOMY, EMERGENCY TRACHEOSTOMY, SECURE AIRWAY, PERCUTANEOUS TRACHEOSTOMY, HISTORY OF TRACHEOSTOMY, PROCEDURES, GIGGS TECHNIQUE,VARIOUS TYPES OF TRACHEOSTOMY, TRACHEOSTOMA, DECANNULATION, INDICATIONS, CONTRAINDICATIONS, CRICOTHYROIDOTOMY, MINITRACHEOSTOMY, TRACHEOSTOMY TUBES, COMPLICATIONS OF TRACHEOSTOMY.
2. DEFINATION :-
Tracheotomy : Surgical opening of the trachea.
Tracheostomy : Creation of a stoma at the skin surface
which leads into the trachea.
It is a surgically created airway fashioned by making a
hole in the anterior wall of the trachea.
4. HISTORY :-
Tracheostomy is one of the oldest surgical procedures.
The first successful tracheostomy was performed by
Brasovala in the 15th century.
Sheldon : Percutaneous tracheostomy in 1957.
In 1909, Chevalier Jackson : Guidelines for safe
tracheostomy.
5. TEMPORARY TRACHEOSTOMY
Temporary tracheostomy may be either elective or
emergency.
An elective temporary tracheostomy may be part of a
planned procedure, such as a major head and neck
operation.
An emergency temporary tracheostomy is a rare
procedure and is indicative in some certain conditions.
6. PERMANENT TRACHEOSTOMY
Permanent tracheostomy is an elective procedure
carried out as part of an operation involving larynx or
trachea.
The trachea is permanently disconnected from the
pharynx and the proximal end of the trachea is sutured
to the skin.
In a permanent tracheostomy the only access to the
lower airway is via the tracheostome.
7. EFFECTS AND FUNCTIONS :-
Alternative pathway for breathing.
Laryngeal bypass - All of the normal laryngeal
functions are lost, the patient is unable to cough or
phonate.
Improves alveolar ventilation.
Protects the airways - By using cuffed tube.
8. EFFECTS AND FUNCTIONS :-
The filtration of particulate matter and humidification
of inspired air by the nasal mucosa is lost.
An increased risk of infection.
Permits removal of tracheobronchial secretions.
To administer anesthesia and IPPR.
9. INDICATIONS :-
Upper Airway obstruction secondary to –
trauma, burns
corrosive poisoning,
laryngeal dysfunction, foreign body,
infections, inflammatory conditions, Neoplasms,
Postoperatively , obstructive sleep apnea
Access for pulmonary toilet
Prolonged ventilatory support
Airway protection in head injured or comatose patient
and in postoperative neurosurgical patients
10. ANATOMY
The trachea is a fibro muscular tube supported by 20 hyaline
cartilages.
The soft tissue posterior wall is in contact with the oesophagus.
Trachea lies in midline of the neck extending from cricoid
cartilage (C6) superiorly to the tracheal bifurcation at the level of
sternal angle (T5).
11. ANATOMY :-
Adults - 12-16 cms long and
16-20 mm wide.
Blood supply -
bracheocephalic artery and
through the inferior thyroid
and bronchial arteries.
Parasympathetic supply to
the trachea is by the
recurrent laryngeal nerve
12. TECHNIQUES
Cricothyroidotomy
For Urgent Procedures
PercutaneousTracheostomy
Can be done in the ICU at the bedside
SurgicalTracheostomy
13. CRICOTHYROIDOTOMY / MINITRACHEOSTOMY
The patient lies supine with the neck extended over a pillow.
Ascertain the correct anatomical landmarks by palpation.
The thyroid cartilage is gripped between the thumb and middle finger
of the left hand; in this position the index finger can be used to palpate
the cricothyroid membrane.
Airway is entered using a needle and cannula attached to a 10 ml
syringe half full of saline.
The needle is angled in a caudal direction and the cannula is passed
over the needle into the trachea.
14. CRICOTHYROIDOTOMY / MINITRACHEOSTOMY
Connect the cannula to an ambu bag using a syringe with a 7-mm
endotracheal tube adaptor.
CO2 is not cleared effectively.
15. PERCUTANEOUS TRACHEOSTOMY
1955, Shelden et al - cutting trocar into the trachea.
Ciaglia, in 1986 -wire-guided technique.
1990, Griggs et al - the guide wire dilating forceps.
Others -
using a single tapered dilator (BlueRhino)
passing the dilator from inside the trachea to the
outside (Fantoni’s technique).
using a screw like device to open the trachea wall
(PercTwist).
20. PERC TWIST TECHNIQUE
PercTwist , a screw action dilator
that was designed to allow dilation
with twisting while lifting the
trachea rather than pushing down.
21. SURGICAL TRACHEOSTOMY
Surgical tracheostomy (ST) is usually performed in the
operating room on a patient under general anesthesia,
but it may be performed at the bedside in the intensive
care unit.
The patient’s shoulders are elevated with head extension
(unless cervical disease or injury is present), elevating the
larynx and exposing more of the upper trachea.
Local anesthesia with a vasoconstrictor is usually
infiltrated into the skin and deeper tissues
22. SURGICAL TRACHEOSTOMY
The skin of the neck over the 2nd
tracheal ring is identified, and a
vertical
incision about 2–3 cm in length
is created.
Sharp dissection following the
skin incision is used to cut across
the platysma muscle, and
bleeding controlled by
hemostats and ties or
electocautery.
23. SURGICAL TRACHEOSTOMY
Blunt dissection parallel to
the long axis of the trachea is
then used to spread the
submuscular tissues until the
thyroid isthmus is identified
If the gland lies superior to
the 3rd tracheal ring, it can
be bluntly undermined and
retracted superiorly to gain
access to the trachea
24. SURGICAL TRACHEOSTOMY
There are 2 basic approaches to
tracheal entry.
the 2nd tracheal ring is divided
laterally and the anterior portion
removed.
Lateral sutures are used to provide
counter traction during
tracheostomy-tube insertion.
These are left uncut to provide
assistance if the tube is
accidentally dislodged later.
25. TRACHEOSTOMY TUBES
Tracheostomy tubes are available in a variety of sizes and
styles, from several manufacturers.
Dimensions of tracheostomy tubes are given by their inner
diameter (ID), outer diameter (OD), length, and curvature.
Cuffs on tracheostomy tubes include high-volume low-pressure
cuffs, tight-to shaft cuffs, and foam cuffs.
27. METAL VS PLASTIC TRACHEOSTOMY
TUBES
Tracheostomy tubes can be of either metal or plastic.
Metal tubes are constructed of silver or stainless steel.
Metal tubes are not used commonly because they are
→ rigid construction
→ uncuffed
→lack a 15 mm connector for attachment to a ventillator
28. METAL VS PLASTIC
TRACHEOSTOMY TUBES
Plastic tubes are most commonly used and are made
from polyvinyl chloride or silicone.
Polyvinyl chloride softens at body temperature
(thermolabile), adjustable to patient’s tracheal
anatomy and centering the distal tip in the trachea.
29. TRACHEOSTOMY TUBES :
If the ID is too small, it will
→increase the resistance through the tube,
→make airway clearance difficult,
→ increase the cuff pressure required to create a
seal
If the OD is too large,
→ Difficulty in speech
→difficult to pass through the stoma.
→may not conform to the shape of the trachea,
→compression of the membranous trachea,
30. CUFFED TRACHEOSTOMY TUBE
Cuffed tracheostomy tubes
→allow airway clearance,
→protection from aspiration
→ positive pressure ventilation
It is recommended that cuff pressure be maintained at 20–
25 mmHg (25–35 cm H2O) to
minimize the risks for both
tracheal wall injury and aspiration.
32. FENESTRATED TRACHEOSTOMY
TUBES
The fenestrated tracheostomy tube is similar in construction to
standard tracheostomy tubes, with the addition of an opening
in the posterior portion of the tube above the cuff.
With the inner cannula removed, the cuff deflated, and the
tracheostomy air passage occluded, the patient can inhale and
exhale through the fenestration and around the tube.
34. FENESTRATED TRACHEOSTOMY
TUBES
This allows for assessment of the patient’s ability to
breathe through the normal oral/nasal route
→ preparing the patient for decannulation
→ allowing phonation
Supplemental oxygen administration to the upper airway
(eg, nasal cannula) may be necessary if the tube is capped.
38. TRACHEOSTOMY CARE :-
Humidification
Tube position -To prevent decubitus of trachea.
Suctioning and Inner tube care - Daily to remove and clean
crusts
Skin care - To prevent irritation and secondary
inflammation due to discharge
39.
40. TRACHEOSTOMY AND
WEANING
Advantages of early tracheostomy
reduced dead space
decreased airway resistance,
decreased work of breathing,
better secretion clearance by suctioning,
reduced requirements of sedatives and MR
better glottic function with
reduced risk of aspiration, atelectasis,pneumonia
shortened ICU stay.
41. DECANNULATION
Decannulation should be approached in a stepwise fashion.
if the initial cuffed tube has been changed there should be
enough airflow around the tube to allow the patient to breath
easily with the tube lumen occluded.
Block the tube during the daytime initially, and then for a full
24 hours, followed by decannulation.
42. DECANNULATION
Once the tube has been removed the stoma must be occluded with
an airtight dressing.
Change the dressing whenever an air leak becomes apparent to avoid
a persistent tracheocutaneous fistula.
Psychologically dependent patients require longer duration for
decannulation.
43. SPEECH WITH TRACHEOSTOMY
Spontaneous breathers
Tolerate cuffless mech.
ventilation
Conscious patient
For mechanically dependent
patients that may tolerate cuff
deflation
For unable to close the tube
outlet with finger (quadriplegia)
44. SPEECH WITHTRACHEOSTOMY
A tracheostomy speaking valve is
a one-way valve, allows air in, but
not out.
This forces air around the
tracheostomy tube, through the
vocal cords and the mouth upon
expiration, enabling the patient
to vocalize .