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{{Mechanical ventilation}}
{{Mechanical ventilation}}
{{CMG}} {{AE}} {{VVS}}
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== 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 ==
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="pmid9113518">{{cite journal |vauthors=Tung A |title=Indications for mechanical ventilation |journal=Int Anesthesiol Clin |volume=35 |issue=1 |pages=1–17 |date= 1997 |pmid=9113518 |doi= |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>
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>
 
*The three most common indications for mechanical ventilation are
1) inadequate oxygenation
2) inadequate ventilation
3) inability to protect the airway


*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:
Other indications for mechanical ventilation include the following:
* Bradypnea  
* Bradypnea  
* Tachypnea (respiratory rate >30 breaths per minute)
* Tachypnea (>30 breaths/minute)
* Apnea with respiratory arrest including cases from [[intoxication]]
* Apnea with respiratory arrest including cases from [[intoxication]]
* Acute respiratory distress syndrome
* Acute respiratory distress syndrome
* Vital capacity less than 15 mL/kg
* Vital capacity less than 15 ml/kg
* Minute ventilation greater than 10 L/min
* Minute ventilation greater than 10 Lts/min
* Reduced respiratory drive
* Reduced respiratory drive
* Abnormalities of the Chest wall
* Abnormalities of the chest wall
* Respiratory muscle fatigue
* Respiratory muscle fatigue
* Intrapulmonary shunt
* Intrapulmonary shunt
* V/Q mismatch(ventilation-perfusion)
* V/Q mismatch (ventilation-perfusion)
* Decreased Functional Residual Capacity
* 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
* 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
* Alveolar-arterial gradient of oxygen tension (A-a DO<sub>2</sub>) with 100% oxygenation of greater than 450 mm Hg
* Coma
* Coma
* Hypotension due to sepsis, shock, CHF
* 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
* 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  
* Acute [[respiratory acidosis]] with  

Latest revision as of 13:39, 4 April 2018

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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.

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