Effect of inspiratory flow rate on β2-agonist induced bronchodilation in mechanically ventilated COPD patients

2000 ◽  
Vol 27 (1) ◽  
pp. 42-46 ◽  
Author(s):  
E. Mouloudi ◽  
G. Prinianakis ◽  
E. Kondili ◽  
D. Georgopoulos
Keyword(s):  
Flow Rate ◽  
Inspiratory Flow ◽  
Inspiratory Flow Rate ◽  
Mechanically Ventilated ◽  
Copd Patients ◽  
Β2 Agonist

Prevalence and predictors of suboptimal peak inspiratory flow rate in COPD patients

2020 ◽  
Vol 147 ◽  
pp. 105298 ◽  
Author(s):  
Hadeer S. Harb ◽  
Nabila Ibrahim Laz ◽  
Hoda Rabea ◽  
Mohamed E.A. Abdelrahim
Keyword(s):  
Flow Rate ◽  
Inspiratory Flow ◽  
Inspiratory Flow Rate ◽  
Peak Inspiratory Flow ◽  
Copd Patients ◽  
Peak Inspiratory Flow Rate

Relationship of inspiratory flow rate and volume on digit tip skin and ulnar artery vasoconstrictor responses in healthy adults

2005 ◽  
Vol 69 (1-2) ◽  
pp. 95-100 ◽  
Author(s):  
Einar Wilder-Smith ◽  
Linda Liu ◽  
Khin Thein Ma Ma ◽  
Benjamin K.C. Ong
Keyword(s):  
Flow Rate ◽  
Ulnar Artery ◽  
Inspiratory Flow ◽  
Healthy Adults ◽  
Inspiratory Flow Rate ◽  
Relationship Of

scholarly journals Efficacy of Pressure Support in Compensating for Apparatus Work

1993 ◽  
Vol 21 (1) ◽  
pp. 67-71 ◽  
Author(s):  
A. D. Bersten ◽  
A. J. Rutten ◽  
A. E. Vedig
Keyword(s):  
Endotracheal Tube ◽  
Flow Rate ◽  
Pressure Support ◽  
Work Of Breathing ◽  
Inspiratory Flow ◽  
Inspiratory Flow Rate ◽  
Respiratory Muscle Fatigue ◽  
Tube Size ◽  
Endotracheal Tubes ◽  
Endotracheal Tube Size

Breathing through an endotracheal tube, connector, and ventilator demand valve imposes an added load on the respiratory muscles. As respiratory muscle fatigue is thought to be a frequent cause of ventilator dependence, we sought to examine the efficacy of five different ventilators in reducing this imposed work through the application of pressure support ventilation. Using a model of spontaneous breathing, we examined the apparatus work imposed by the Servo 900-C, Puritan Bennett 7200a, Engstrom Erica, Drager EV-A or Hamilton Veolar ventilators, a size 7.0 and 8.0 mm endotracheal tube, and inspiratory flow rates of 40 and 60 l/min. Pressure support of 0, 5, 10, 15, 20 and 30 cm H2O was tested at each experimental condition. Apparatus work was greater with increased inspiratory flow rate and decreased endotracheal tube size, and was lowest for the Servo 900-C and Puritan Bennett 7200a ventilators. Apparatus work fell in a curvilinear fashion when pressure support was applied, with no major difference noted between the five ventilators tested. At an inspiratory flow rate of 40 l/min, a pressure support of 5 and 8 cm H2O compensated for apparatus work through size 8.0 and 7.0 endotracheal tubes and the Servo 900-C and Puritan Bennett 7200a ventilators. However, the maximum negative pressure was greater for the Servo 900-C. The added work of breathing through endotracheal tubes and ventilator demand valves may be compensated for by the application of pressure support. The level of pressure support required depends on inspiratory flow rate, endotracheal tube size, and type of ventilator.

Clinical Significance of Nasal Peak Inspiratory Flow Rate in Patients with Chronic Cough

1999 ◽  
Vol 46 (5) ◽  
pp. 654
Author(s):  
Chang Hyeok An ◽  
Byung Hun Lee ◽  
Yong Bum Park ◽  
Jae Chul Choi ◽  
Hyun Suk Jee ◽  
...  
Keyword(s):  
Clinical Significance ◽  
Flow Rate ◽  
Chronic Cough ◽  
Inspiratory Flow ◽  
Inspiratory Flow Rate ◽  
Peak Inspiratory Flow ◽  
Nasal Peak Inspiratory Flow ◽  
Peak Inspiratory Flow Rate

PREDICTORS OF SUBOPTIMAL PEAK INSPIRATORY FLOW RATE IN PATIENTS WITH COPD: ANALYSES FROM THE REVEFENACIN PHASE-3 PROGRAM

CHEST Journal ◽  
2019 ◽  
Vol 156 (4) ◽  
pp. A1171-A1172
Author(s):  
Jill Ohar ◽  
FCCP ◽  
Donald Mahler ◽  
Chris Barnes ◽  
Glenn Crater
Keyword(s):  
Flow Rate ◽  
Inspiratory Flow ◽  
Inspiratory Flow Rate ◽  
Phase 3 ◽  
Peak Inspiratory Flow ◽  
Peak Inspiratory Flow Rate
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