Effect of pressure support ventilation on breathing patterns and respiratory work

H. Tokioka; S. Saito; F. Kosaka

doi:10.1007/BF00273558

Effect of pressure support ventilation on breathing patterns and respiratory work

H. Tokioka, S. Saito, F. Kosaka

Research output: Contribution to journal › Article › peer-review

49 Citations (Scopus)

Abstract

We assessed the effect of pressure support ventilation (PSV) on breathing patterns and the work of breathing in 10 postoperative patients. Minute ventilation ( {Mathematical expression}_E) increased by 8% with 5 cm H₂O PSV and 10% with 10 cm H₂O PSV compared to 0 cm H₂O PSV. The increase in {Mathematical expression}_E was achieved by increased mean inspiratory flow (24% with 5 cm H₂O PSV and 67% with 10 cm H₂O PSV) and a decrease in duty cycle (13% with 5 cm H₂O PSV and 39% with 10 cm H₂O PSV). The decrease in duty cycle along with a decrease in respiratory frequency allowed a greater expiratory time including a rest period for the respiratory muscles, which might minimize the risk of muscle fatigue. Furthermore, the inspiratory work added by the ventilator was near zero with 5 cm H₂O PSV and 10 cm H₂O PSV. Oxygen consumption also decreased significantly with 5 cm H₂O PSV. We conclude that PSV improves the breathing patterns and minimizes the work of breathing spontaneously via a ventilator.

Original language	English
Pages (from-to)	491-494
Number of pages	4
Journal	Intensive Care Medicine
Volume	15
Issue number	8
DOIs	https://doi.org/10.1007/BF00273558
Publication status	Published - Dec 1 1989

Keywords

Breathing pattern
Pressure support ventilation
Work of breathing

ASJC Scopus subject areas

Critical Care and Intensive Care Medicine

Access to Document

10.1007/BF00273558

Cite this

@article{f44145d81ddc4e37868a7cb24f8f4e12,

title = "Effect of pressure support ventilation on breathing patterns and respiratory work",

abstract = "We assessed the effect of pressure support ventilation (PSV) on breathing patterns and the work of breathing in 10 postoperative patients. Minute ventilation ( {Mathematical expression}E) increased by 8% with 5 cm H2O PSV and 10% with 10 cm H2O PSV compared to 0 cm H2O PSV. The increase in {Mathematical expression}E was achieved by increased mean inspiratory flow (24% with 5 cm H2O PSV and 67% with 10 cm H2O PSV) and a decrease in duty cycle (13% with 5 cm H2O PSV and 39% with 10 cm H2O PSV). The decrease in duty cycle along with a decrease in respiratory frequency allowed a greater expiratory time including a rest period for the respiratory muscles, which might minimize the risk of muscle fatigue. Furthermore, the inspiratory work added by the ventilator was near zero with 5 cm H2O PSV and 10 cm H2O PSV. Oxygen consumption also decreased significantly with 5 cm H2O PSV. We conclude that PSV improves the breathing patterns and minimizes the work of breathing spontaneously via a ventilator.",

keywords = "Breathing pattern, Pressure support ventilation, Work of breathing",

author = "H. Tokioka and S. Saito and F. Kosaka",

year = "1989",

month = dec,

day = "1",

doi = "10.1007/BF00273558",

language = "English",

volume = "15",

pages = "491--494",

journal = "Intensive Care Medicine",

issn = "0342-4642",

publisher = "Springer Verlag",

number = "8",

}

TY - JOUR

T1 - Effect of pressure support ventilation on breathing patterns and respiratory work

AU - Tokioka, H.

AU - Saito, S.

AU - Kosaka, F.

PY - 1989/12/1

Y1 - 1989/12/1

N2 - We assessed the effect of pressure support ventilation (PSV) on breathing patterns and the work of breathing in 10 postoperative patients. Minute ventilation ( {Mathematical expression}E) increased by 8% with 5 cm H2O PSV and 10% with 10 cm H2O PSV compared to 0 cm H2O PSV. The increase in {Mathematical expression}E was achieved by increased mean inspiratory flow (24% with 5 cm H2O PSV and 67% with 10 cm H2O PSV) and a decrease in duty cycle (13% with 5 cm H2O PSV and 39% with 10 cm H2O PSV). The decrease in duty cycle along with a decrease in respiratory frequency allowed a greater expiratory time including a rest period for the respiratory muscles, which might minimize the risk of muscle fatigue. Furthermore, the inspiratory work added by the ventilator was near zero with 5 cm H2O PSV and 10 cm H2O PSV. Oxygen consumption also decreased significantly with 5 cm H2O PSV. We conclude that PSV improves the breathing patterns and minimizes the work of breathing spontaneously via a ventilator.

AB - We assessed the effect of pressure support ventilation (PSV) on breathing patterns and the work of breathing in 10 postoperative patients. Minute ventilation ( {Mathematical expression}E) increased by 8% with 5 cm H2O PSV and 10% with 10 cm H2O PSV compared to 0 cm H2O PSV. The increase in {Mathematical expression}E was achieved by increased mean inspiratory flow (24% with 5 cm H2O PSV and 67% with 10 cm H2O PSV) and a decrease in duty cycle (13% with 5 cm H2O PSV and 39% with 10 cm H2O PSV). The decrease in duty cycle along with a decrease in respiratory frequency allowed a greater expiratory time including a rest period for the respiratory muscles, which might minimize the risk of muscle fatigue. Furthermore, the inspiratory work added by the ventilator was near zero with 5 cm H2O PSV and 10 cm H2O PSV. Oxygen consumption also decreased significantly with 5 cm H2O PSV. We conclude that PSV improves the breathing patterns and minimizes the work of breathing spontaneously via a ventilator.

KW - Breathing pattern

KW - Pressure support ventilation

KW - Work of breathing

UR - http://www.scopus.com/inward/record.url?scp=0024790361&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0024790361&partnerID=8YFLogxK

U2 - 10.1007/BF00273558

DO - 10.1007/BF00273558

M3 - Article

C2 - 2607036

AN - SCOPUS:0024790361

VL - 15

SP - 491

EP - 494

JO - Intensive Care Medicine

JF - Intensive Care Medicine

SN - 0342-4642

IS - 8

ER -

Effect of pressure support ventilation on breathing patterns and respiratory work

Abstract

Keywords

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this