Mechanical ventilation indications for use: Difference between revisions

Jump to navigation Jump to search
No edit summary
No edit summary
 
(13 intermediate revisions by 4 users not shown)
Line 1: Line 1:
__NOTOC__
__NOTOC__
{{Mechanical ventilation}}
{{Mechanical ventilation}}
{{CMG}} {{AE}} {{VVS}}
{{CMG}} {{AE}} {{VVS}}{{HK}}
 
== Overview ==
Mechanical ventilation can be used in patients who have labored breathing and are unable to maintain adequate gaseous excange leading to hypoxemia and/or hypercapnia. Common clinical indications of mechanical ventilation include moderate to severe dyspnea, respiratory rate (RR) > 24-30/min, signs of increased breathing, accessory muscle use for breathing and abdominal paradox. It may also be used in patients who have inadequate arterial partial pressure of oxygen or critically low PaO2 (PaO2 < 70 mm Hg), hypercapnia PaCO2 > 45 mm Hg and PaO2/FiO2 < 200. Patients suffering from acute exacerbation of COPD, asthma/asthmatic attack, neuromuscular disease that prevents chest movement to allow gas exchange, central nervous system depression (CNS depression due to drugs, cardiac arrest, trauma), chest injury, chest malformation, acute and chronic respiratory failure, heart failure and ventilation-perfusion mismatch may also be candidates for mechanical ventilation.
 
== Indications for Use ==
== Indications for Use ==
Mechanical ventilation is indicated when the patient's spontaneous [[Breath|ventilation]] is inadequate to maintain life. It is also indicated as prophylaxis for imminent collapse of other physiologic functions, or ineffective gas exchange in the lungs. Because mechanical ventilation only serves to provide assistance for breathing and does not cure a disease, the patient's underlying condition should be correctable and should resolve over time. In addition, other factors must be taken into consideration because mechanical ventilation is not without its complications (''see below'')
The indications of the mechanical ventilation is as follows:<ref name="pmid9113518">{{cite journal |vauthors=Tung A |title=Indications for mechanical ventilation |journal=Int Anesthesiol Clin |volume=35 |issue=1 |pages=1–17 |year=1997 |pmid=9113518 |doi= |url=}}</ref><ref name="pmid26902369">{{cite journal |vauthors=Kreppein U, Litterst P, Westhoff M |title=[Hypercapnic respiratory failure. Pathophysiology, indications for mechanical ventilation and management] |language=German |journal=Med Klin Intensivmed Notfmed |volume=111 |issue=3 |pages=196–201 |year=2016 |pmid=26902369 |doi=10.1007/s00063-016-0143-2 |url=}}</ref><ref name="pmid22331041">{{cite journal |vauthors=Strøm T, Rian O, Toft P |title=[Fewer indications for sedation in mechanical ventilation therapy] |language=Danish |journal=Ugeskr. Laeg. |volume=174 |issue=7 |pages=406–9 |date=February 2012 |pmid=22331041 |doi= |url=}}</ref><ref name="pmid27560387">{{cite journal |vauthors=Simonds AK |title=Home Mechanical Ventilation: An Overview |journal=Ann Am Thorac Soc |volume=13 |issue=11 |pages=2035–2044 |date=November 2016 |pmid=27560387 |doi=10.1513/AnnalsATS.201606-454FR |url=}}</ref><ref name="pmid22186215">{{cite journal |vauthors=Boldrini R, Fasano L, Nava S |title=Noninvasive mechanical ventilation |journal=Curr Opin Crit Care |volume=18 |issue=1 |pages=48–53 |date=February 2012 |pmid=22186215 |doi=10.1097/MCC.0b013e32834ebd71 |url=}}</ref><ref name="pmid6812417">{{cite journal |vauthors=Cohen CA, Zagelbaum G, Gross D, Roussos C, Macklem PT |title=Clinical manifestations of inspiratory muscle fatigue |journal=Am. J. Med. |volume=73 |issue=3 |pages=308–16 |date=September 1982 |pmid=6812417 |doi= |url=}}</ref><ref name="pmid8252973">{{cite journal |vauthors=Slutsky AS |title=Mechanical ventilation. American College of Chest Physicians' Consensus Conference |journal=Chest |volume=104 |issue=6 |pages=1833–59 |date=December 1993 |pmid=8252973 |doi= |url=}}</ref>


Common medical indications for use include:
*The three most common indications for mechanical ventilation:
* Acute lung injury (including [[acute respiratory distress syndrome|ARDS]], trauma)
** '''''Inadequate oxygenation'''''
* [[Apnea]] with respiratory arrest, including cases from [[intoxication]]
** '''''Inadequate ventilation'''''
** '''''Inability to protect the airway'''''
Other indications for mechanical ventilation include the following:
* Bradypnea
* Tachypnea (>30 breaths/minute)
* Apnea with respiratory arrest including cases from [[intoxication]]
* Acute respiratory distress syndrome
* Vital capacity less than 15 ml/kg
* Minute ventilation greater than 10 Lts/min
* Reduced respiratory drive
* Abnormalities of the chest wall
* Respiratory muscle fatigue
* Intrapulmonary shunt
* V/Q mismatch (ventilation-perfusion)
* Decreased Functional Residual Capacity
* Arterial partial pressure of oxygen (PaO<sub>2</sub>) with a supplemental fraction of inspired oxygen (FIO<sub>2</sub>) of less than 55 mm Hg
* Alveolar-arterial gradient of oxygen tension (A-a DO<sub>2</sub>) with 100% oxygenation of greater than 450 mm Hg
* Coma
* Hypotension due to sepsis, shock, CHF
* Acute partial pressure of carbon dioxide (PaCO<sub>2</sub>) greater than 50 mm Hg with an arterial pH less than 7.25
* [[Chronic obstructive pulmonary disease]] ([[COPD]])
* [[Chronic obstructive pulmonary disease]] ([[COPD]])
* Acute [[respiratory acidosis]] with partial pressure of carbon dioxide (pCO<sub>2</sub>) > 50 mmHg and pH < 7.25, which may be due to paralysis of the [[Thoracic diaphragm|diaphragm]] due to [[Guillain-Barré syndrome]], [[Myasthenia Gravis]], [[spinal cord]] injury, or the effect of [[anaesthesia|anaesthetic]] and [[muscle relaxant]] drugs
* Acute [[respiratory acidosis]] with  
** Partial pressure of carbon dioxide (pCO<sub>2</sub>) > 50 mmHg  
** pH < 7.25, which may be due to paralysis of the [[Thoracic diaphragm|diaphragm]] due to  
*** [[Guillain-Barré syndrome]]  
*** [[Myasthenia Gravis]]  
*** [[spinal cord injury]]  
*** The effect of [[anaesthesia|anaesthetic]] and [[muscle relaxant|muscle relaxants]]
* Increased work of breathing as evidenced by significant [[tachypnea]], retractions, and other physical signs of respiratory distress
* Increased work of breathing as evidenced by significant [[tachypnea]], retractions, and other physical signs of respiratory distress
* [[Hypoxemia]] with arterial partial pressure of oxygen (PaO<sub>2</sub>) with supplemental fraction of inspired oxygen (FiO<sub>2</sub>) < 55 mm Hg
* [[Hypoxemia]] with arterial partial pressure of oxygen (PaO<sub>2</sub>) with supplemental fraction of inspired oxygen (FiO<sub>2</sub>) < 55 mm Hg
* [[Hypotension]] including [[sepsis]], [[Shock (medical)|shock]], [[congestive heart failure]]
* Neuromuscular disease
 
==References==
==References==
{{reflist|2}}
{{reflist|2}}
Line 21: Line 51:
[[Category:Prehospital care]]
[[Category:Prehospital care]]
[[Category:Pulmonology]]
[[Category:Pulmonology]]
[[Category:Needs content]]
[[Category:Needs overview]]

Latest revision as of 13:39, 4 April 2018

Mechanical ventilation Microchapters

Home

Patient Information

Overview

Historical Perspective

Types of Ventilators

Indications for Use

Ventilator variables

Choosing Amongst Ventilator Modes

Initial Ventilator Settings

Protocol

Complications

Modification of Settings

Connection to Ventilators

Terminology

Mechanical ventilation indications for use On the Web

Most recent articles

Most cited articles

Review articles

CME Programs

Powerpoint slides

Images

American Roentgen Ray Society Images of Mechanical ventilation indications for use

All Images
X-rays
Echo & Ultrasound
CT Images
MRI

Ongoing Trials at Clinical Trials.gov

US National Guidelines Clearinghouse

NICE Guidance

FDA on Mechanical ventilation indications for use

CDC on Mechanical ventilation indications for use

Mechanical ventilation indications for use in the news

Blogs on Mechanical ventilation indications for use

Directions to Hospitals Treating Mechanical ventilation

Risk calculators and risk factors for Mechanical ventilation indications for use

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Vishnu Vardhan Serla M.B.B.S. [2]Syed Hassan A. Kazmi BSc, MD [3]

Overview

Mechanical ventilation can be used in patients who have labored breathing and are unable to maintain adequate gaseous excange leading to hypoxemia and/or hypercapnia. Common clinical indications of mechanical ventilation include moderate to severe dyspnea, respiratory rate (RR) > 24-30/min, signs of increased breathing, accessory muscle use for breathing and abdominal paradox. It may also be used in patients who have inadequate arterial partial pressure of oxygen or critically low PaO2 (PaO2 < 70 mm Hg), hypercapnia PaCO2 > 45 mm Hg and PaO2/FiO2 < 200. Patients suffering from acute exacerbation of COPD, asthma/asthmatic attack, neuromuscular disease that prevents chest movement to allow gas exchange, central nervous system depression (CNS depression due to drugs, cardiac arrest, trauma), chest injury, chest malformation, acute and chronic respiratory failure, heart failure and ventilation-perfusion mismatch may also be candidates for mechanical ventilation.

Indications for Use

The indications of the mechanical ventilation is as follows:[1][2][3][4][5][6][7]

  • The three most common indications for mechanical ventilation:
    • Inadequate oxygenation
    • Inadequate ventilation
    • Inability to protect the airway

Other indications for mechanical ventilation include the following:

  • Bradypnea
  • Tachypnea (>30 breaths/minute)
  • Apnea with respiratory arrest including cases from intoxication
  • Acute respiratory distress syndrome
  • Vital capacity less than 15 ml/kg
  • Minute ventilation greater than 10 Lts/min
  • Reduced respiratory drive
  • Abnormalities of the chest wall
  • Respiratory muscle fatigue
  • Intrapulmonary shunt
  • V/Q mismatch (ventilation-perfusion)
  • Decreased Functional Residual Capacity
  • Arterial partial pressure of oxygen (PaO2) with a supplemental fraction of inspired oxygen (FIO2) of less than 55 mm Hg
  • Alveolar-arterial gradient of oxygen tension (A-a DO2) with 100% oxygenation of greater than 450 mm Hg
  • Coma
  • Hypotension due to sepsis, shock, CHF
  • Acute partial pressure of carbon dioxide (PaCO2) greater than 50 mm Hg with an arterial pH less than 7.25
  • Chronic obstructive pulmonary disease (COPD)
  • Acute respiratory acidosis with
  • Increased work of breathing as evidenced by significant tachypnea, retractions, and other physical signs of respiratory distress
  • Hypoxemia with arterial partial pressure of oxygen (PaO2) with supplemental fraction of inspired oxygen (FiO2) < 55 mm Hg
  • Neuromuscular disease

References

  1. Tung A (1997). "Indications for mechanical ventilation". Int Anesthesiol Clin. 35 (1): 1–17. PMID 9113518.
  2. Kreppein U, Litterst P, Westhoff M (2016). "[Hypercapnic respiratory failure. Pathophysiology, indications for mechanical ventilation and management]". Med Klin Intensivmed Notfmed (in German). 111 (3): 196–201. doi:10.1007/s00063-016-0143-2. PMID 26902369.
  3. Strøm T, Rian O, Toft P (February 2012). "[Fewer indications for sedation in mechanical ventilation therapy]". Ugeskr. Laeg. (in Danish). 174 (7): 406–9. PMID 22331041.
  4. Simonds AK (November 2016). "Home Mechanical Ventilation: An Overview". Ann Am Thorac Soc. 13 (11): 2035–2044. doi:10.1513/AnnalsATS.201606-454FR. PMID 27560387.
  5. Boldrini R, Fasano L, Nava S (February 2012). "Noninvasive mechanical ventilation". Curr Opin Crit Care. 18 (1): 48–53. doi:10.1097/MCC.0b013e32834ebd71. PMID 22186215.
  6. Cohen CA, Zagelbaum G, Gross D, Roussos C, Macklem PT (September 1982). "Clinical manifestations of inspiratory muscle fatigue". Am. J. Med. 73 (3): 308–16. PMID 6812417.
  7. Slutsky AS (December 1993). "Mechanical ventilation. American College of Chest Physicians' Consensus Conference". Chest. 104 (6): 1833–59. PMID 8252973.

Template:WH Template:WS