Jump to content

Continuous positive airway pressure: Difference between revisions

From Wikipedia, the free encyclopedia
Browse history interactively
← Previous editNext edit →
Content deleted Content added
VisualWikitext
m Reverted 1 edit by 96.31.125.59 (talk) to last revision by 198.22.46.2. (TW)
Corrected outdated link on same site
Line 19: Line 19:
CPAP typically is used for people who have breathing problems, such as [[sleep apnea]]. CPAP also may be used to treat preterm infants whose lungs have not yet fully developed. For example, physicians may use CPAP in infants with [[Infant respiratory distress syndrome|respiratory distress syndrome]]. It is associated with a decrease in the incidence of [[bronchopulmonary dysplasia]]. In some preterm infants whose lungs have not fully developed, CPAP improves survival and decreases the need for steroid treatment for their lungs. In resource-limited settings where CPAP improves respiratory rate and survival in children with primary pulmonary disease, researchers have found that nurses can initiate and manage care with once or twice daily physician rounds.<ref>{{cite journal|last1=Patrick|first1=Wilson|last2=Moresky|first2=Rachel|last3=Baiden|first3=Frank|last4=Brooks|first4=Joshua|last5=Morris|first5=Marilyn|last6=Giessler|first6=Katie|last7=Punguyire|first7=Damien|last8=Apio|first8=Gavin|last9=Agyeman-Ampromfi|first9=Akua|last10=Lopez-Pintado|first10=Sara|last11=Sylverken|first11=Justice|last12=Nyarko-Jectey|first12=Kwadwo|last13=Tagbor|first13=Harry|title=Continuous positive airway pressure for children with undifferentiated respiratory distress in Ghana: an open-label, cluster, crossover trial|journal=Lancet Global Health|date=June 2017|volume=5|page=e615}}</ref>
CPAP typically is used for people who have breathing problems, such as [[sleep apnea]]. CPAP also may be used to treat preterm infants whose lungs have not yet fully developed. For example, physicians may use CPAP in infants with [[Infant respiratory distress syndrome|respiratory distress syndrome]]. It is associated with a decrease in the incidence of [[bronchopulmonary dysplasia]]. In some preterm infants whose lungs have not fully developed, CPAP improves survival and decreases the need for steroid treatment for their lungs. In resource-limited settings where CPAP improves respiratory rate and survival in children with primary pulmonary disease, researchers have found that nurses can initiate and manage care with once or twice daily physician rounds.<ref>{{cite journal|last1=Patrick|first1=Wilson|last2=Moresky|first2=Rachel|last3=Baiden|first3=Frank|last4=Brooks|first4=Joshua|last5=Morris|first5=Marilyn|last6=Giessler|first6=Katie|last7=Punguyire|first7=Damien|last8=Apio|first8=Gavin|last9=Agyeman-Ampromfi|first9=Akua|last10=Lopez-Pintado|first10=Sara|last11=Sylverken|first11=Justice|last12=Nyarko-Jectey|first12=Kwadwo|last13=Tagbor|first13=Harry|title=Continuous positive airway pressure for children with undifferentiated respiratory distress in Ghana: an open-label, cluster, crossover trial|journal=Lancet Global Health|date=June 2017|volume=5|page=e615}}</ref>


CPAP therapy utilizes machines specifically designed to deliver a constant flow of pressure. Some CPAP machines have other features as well, such as heated humidifiers. CPAP is the most effective treatment for [[obstructive sleep apnea]], in which the mild pressure from the CPAP prevents the airway from collapsing or becoming blocked.<ref>{{cite web|url=https://www.sleepassociation.org/cpap/|title=CPAP Machine - Devices Reviews & Costs - American Sleep Assoc|publisher=}}</ref>
CPAP therapy utilizes machines specifically designed to deliver a constant flow of pressure. Some CPAP machines have other features as well, such as heated humidifiers. CPAP is the most effective treatment for [[obstructive sleep apnea]], in which the mild pressure from the CPAP prevents the airway from collapsing or becoming blocked.<ref>{{cite web|url=https://www.sleepassociation.org/sleep-treatments/cpap-machines-masks/|title=CPAP Machines and CPAP Masks - American Sleep Assoc|publisher=}}</ref>


Although delivery of CPAP through a nasal mask is the most common modality of treatment, other systems exist for interfacing with adults and children. Nasal CPAP is frequently used in infants, though its use is controversial. Studies have shown nasal CPAP reduces ventilator time but an increased occurrence of [[pneumothorax]] was also prevalent.<ref>{{Cite journal | last1 = Morley | first1 = C. J. | last2 = Davis | first2 = P. G. | last3 = Doyle | first3 = L. W. | last4 = Brion | first4 = L. P. | last5 = Hascoet | first5 = J. M. | last6 = Carlin | first6 = J. B. | last7 = Coin Trial | first7 = I. | doi = 10.1056/NEJMoa072788 | title = Nasal CPAP or Intubation at Birth for Very Preterm Infants | journal = New England Journal of Medicine | volume = 358 | issue = 7 | pages = 700–708 | year = 2008 | pmid = 18272893 | pmc = }}</ref> Oral masks and naso-oral masks are often used when nasal congestion or obstruction is an issue. Devices that combine nasal pressure with [[Mandibular advancement splint|maxillary advancement device]]s (MAD) also exist.
Although delivery of CPAP through a nasal mask is the most common modality of treatment, other systems exist for interfacing with adults and children. Nasal CPAP is frequently used in infants, though its use is controversial. Studies have shown nasal CPAP reduces ventilator time but an increased occurrence of [[pneumothorax]] was also prevalent.<ref>{{Cite journal | last1 = Morley | first1 = C. J. | last2 = Davis | first2 = P. G. | last3 = Doyle | first3 = L. W. | last4 = Brion | first4 = L. P. | last5 = Hascoet | first5 = J. M. | last6 = Carlin | first6 = J. B. | last7 = Coin Trial | first7 = I. | doi = 10.1056/NEJMoa072788 | title = Nasal CPAP or Intubation at Birth for Very Preterm Infants | journal = New England Journal of Medicine | volume = 358 | issue = 7 | pages = 700–708 | year = 2008 | pmid = 18272893 | pmc = }}</ref> Oral masks and naso-oral masks are often used when nasal congestion or obstruction is an issue. Devices that combine nasal pressure with [[Mandibular advancement splint|maxillary advancement device]]s (MAD) also exist.

Revision as of 18:33, 10 September 2018

Continuous positive airway pressure
CPAP therapy: flow generator, hose, full face mask

Continuous positive airway pressure (CPAP) is a form of positive airway pressure ventilator, which applies mild air pressure on a continuous basis to keep the airways continuously open in people who are able to breathe spontaneously on their own. It is an alternative to positive end-expiratory pressure (PEEP). Both modalities stent the lungs' alveoli open and thus recruit more of the lung's surface area for ventilation, but, while PEEP refers to devices that impose positive pressure only at the end of the exhalation, CPAP devices apply continuous positive airway pressure throughout the breathing cycle. Thus, the ventilator itself does not cycle during CPAP, no additional pressure above the level of CPAP is provided, and patients must initiate all of their breaths.[1]

CPAP typically is used for people who have breathing problems, such as sleep apnea. CPAP also may be used to treat preterm infants whose lungs have not yet fully developed. For example, physicians may use CPAP in infants with respiratory distress syndrome. It is associated with a decrease in the incidence of bronchopulmonary dysplasia. In some preterm infants whose lungs have not fully developed, CPAP improves survival and decreases the need for steroid treatment for their lungs. In resource-limited settings where CPAP improves respiratory rate and survival in children with primary pulmonary disease, researchers have found that nurses can initiate and manage care with once or twice daily physician rounds.[2]

CPAP therapy utilizes machines specifically designed to deliver a constant flow of pressure. Some CPAP machines have other features as well, such as heated humidifiers. CPAP is the most effective treatment for obstructive sleep apnea, in which the mild pressure from the CPAP prevents the airway from collapsing or becoming blocked.[3]

Although delivery of CPAP through a nasal mask is the most common modality of treatment, other systems exist for interfacing with adults and children. Nasal CPAP is frequently used in infants, though its use is controversial. Studies have shown nasal CPAP reduces ventilator time but an increased occurrence of pneumothorax was also prevalent.[4] Oral masks and naso-oral masks are often used when nasal congestion or obstruction is an issue. Devices that combine nasal pressure with maxillary advancement devices (MAD) also exist.

Complications

Settings and measurements

  • CPAP
This is the pressure applied without pause or end to the airway. Generally utilizing flow to generate the pressure.
  • PEEP
Positive end-expiratory pressure (PEEP) is the pressure in the lungs (alveolar pressure) above atmospheric pressure (the pressure outside of the body) that exists at the end of expiration.
  • Ramp
This feature is present on many devices and allows the user to reduce the pressure to lowest setting and gradually increase to the set pressure. This allows the user to fall asleep with the pressure at a more comfortable setting.
  • FIO2
Fractional O2 percentage — that is, the fraction of inspired oxygen that is added to the delivered air.

References

  1. ^ Werman, Howard A.; Karren, K; Mistovich, Joseph (2014). "Continuous Positive Airway Pressure(CPAP)". In Werman A. Howard; Mistovich J; Karren K (eds.). Prehospital Emergency Care, 10e. Pearson Education, Inc. p. 242.
  2. ^ Patrick, Wilson; Moresky, Rachel; Baiden, Frank; Brooks, Joshua; Morris, Marilyn; Giessler, Katie; Punguyire, Damien; Apio, Gavin; Agyeman-Ampromfi, Akua; Lopez-Pintado, Sara; Sylverken, Justice; Nyarko-Jectey, Kwadwo; Tagbor, Harry (June 2017). "Continuous positive airway pressure for children with undifferentiated respiratory distress in Ghana: an open-label, cluster, crossover trial". Lancet Global Health. 5: e615.
  3. ^ "CPAP Machines and CPAP Masks - American Sleep Assoc".
  4. ^ Morley, C. J.; Davis, P. G.; Doyle, L. W.; Brion, L. P.; Hascoet, J. M.; Carlin, J. B.; Coin Trial, I. (2008). "Nasal CPAP or Intubation at Birth for Very Preterm Infants". New England Journal of Medicine. 358 (7): 700–708. doi:10.1056/NEJMoa072788. PMID 18272893.
Retrieved from "https://en.wikipedia.org/w/index.php?title=Continuous_positive_airway_pressure&oldid=858950744"