Search Results - "Kyroussis, D."

Diaphragm strength in chronic obstructive pulmonary disease by Polkey, M I, Kyroussis, D, Hamnegard, C H, Mills, G H, Green, M, Moxham, J

“…The diaphragm is normally the main inspiratory muscle and diaphragm strength in chronic obstructive pulmonary disease (COPD) is therefore of interest. We…”
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Respiratory muscle activity in patients with COPD walking to exhaustion with and without pressure support by Kyroussis, D, Polkey, MI, Hamnegard, CH, Mills, GH, Green, M, Moxham, J

“…The function of the diaphragm and other respiratory muscles during exercise in chronic obstructive pulmonary disease (COPD) remains controversial and few data…”
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Inspiratory pressure support prolongs exercise induced lactataemia in severe COPD by Polkey, Michael I, Hawkins, Peter, Kyroussis, Dimitris, Ellum, Sheric G, Sherwood, Roy, Moxham, John

“…BACKGROUND A physiological benefit from pulmonary rehabilitation in chronic obstructive pulmonary disease (COPD) is more probable if exercise is performed…”
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Potentiation of diaphragmatic twitch after voluntary contraction in normal subjects by Wragg, S, Hamnegard, C, Road, J, Kyroussis, D, Moran, J, Green, M, Moxham, J

“…BACKGROUND--Skeletal muscle twitch responses may be transiently increased by previous contractions, a phenomenon termed twitch potentiation. The aim of this…”
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Portable measurement of maximum mouth pressures by Hamnegard, CH, Wragg, S, Kyroussis, D, Aquilina, R, Moxham, J, Green, M

“…We have compared a small portable mouth pressure meter (MPM) to our laboratory standard (LS) pressure recording equipment in order to evaluate this new device…”
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Tracheal tube pressure change during magnetic stimulation of the phrenic nerves as an indicator of diaphragm strength on the intensive care unit by Mills, G.H., Ponte, J., Hamnegard, C.H., Kyroussis, D., Polkey, M.I., Moxham, J., Green, M.

“…Diaphragm strength can be assessed from twitch gastric (TwPgas), twitch oesophageal (TwPoes), and twitch transdiaphragmatic pressure (TwPdi) in response to…”
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Unilateral magnetic stimulation of the phrenic nerve by Mills, G H, Kyroussis, D, Hamnegard, C H, Wragg, S, Moxham, J, Green, M

“…BACKGROUND--Electrical stimulation of the phrenic nerve is a useful non-volitional method of assessing diaphragm contractility. During the assessment of…”
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Simulation of cough in man by magnetic stimulation of the thoracic nerve roots by KYROUSSIS, D, POLKEY, M. I, MILLS, G. H, HUGHES, P. D, MOXHAM, J, GREEN, M

“…Normal cough requires abdominal muscle contraction. We have previously reported contraction of the abdominal muscles elicited by a single percutaneous magnetic…”
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Mouth pressure in response to magnetic stimulation of the phrenic nerves by Hamnegåard, C H, Wragg, S, Kyroussis, D, Mills, G, Bake, B, Green, M, Moxham, J

“…BACKGROUND--Diaphragm strength can be assessed by the measurement of gastric (TW PGA), oesophageal (TW POES), and transdiaphragmatic (TW PDI) pressure in…”
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Measurement of sniff nasal and diaphragm twitch mouth pressure in patients by Hughes, P D, Polkey, M I, Kyroussis, D, Hamnegard, C H, Moxham, J, Green, M

“…BACKGROUND: Inspiratory muscle weakness is a recognised cause of unexplained dyspnoea. It may be suggested by the finding of a low static inspiratory mouth…”
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Inspiratory muscle maximum relaxation rate measured from submaximal sniff nasal pressure in patients with severe COPD by Kyroussis, D, Johnson, L C, Hamnegard, C-H, Polkey, M I, Moxham, J

“…Background: Slowing of the inspiratory muscle maximum relaxation rate (MRR) is a useful index of severe inspiratory muscle loading and potential fatigue and…”
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Diaphragm fatigue following maximal ventilation in man by Hamnegard, CH, Wragg, S, Kyroussis, D, Mills, GH, Polkey, MI, Moran, J, Road, J, Bake, B, Green, M, Moxham, J

“…When highly motivated normal subjects perform maximal isocapnic ventilation, a substantial fall in ventilation is observed during the first minute associated…”
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Clinical assessment of diaphragm strength by cervical magnetic stimulation of the phrenic nerves by Hamnegård, C. H., Wragg, S. D., Mills, G. H., Kyroussis, D., Polkey, M. I., Bake, B., Moxham, J., Green, M.

“…BACKGROUND: Accurate assessment of diaphragm strength can be difficult. Transdiaphragmatic pressure (PDI) measurements during volitional manoeuvres are useful…”
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Paired phrenic nerve stimuli for the detection of diaphragm fatigue in humans by Polkey, MI, Kyroussis, D, Hamnegard, CH, Hughes, PD, Rafferty, GF, Moxham, J, Green, M

“…The transdiaphragmatic pressure (Pdi) elicited by paired bilateral phrenic nerve stimulation may be viewed as the sum of the Pdi values produced by the first…”
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The effect of lung volume on transdiaphragmatic pressure by Hamnegard, CH, Wragg, S, Mills, G, Kyroussis, D, Road, J, Daskos, G, Bake, B, Moxham, J, Green, M

“…Diaphragm strength can be assessed by measurement of transdiaphragmatic pressure (Pdi) in response to stimulation of the phrenic nerves. The length-tension…”
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Maximum rate of change in oesophageal pressure assessed from unoccluded breaths: an option where mouth occlusion pressure is impractical by Hamnegard, CH, Polkey, MI, Kyroussis, D, Mills, GH, Green, M, Bake, B, Moxham, J

“…The mouth occlusion pressure 100 ms after onset of inspiration (P0.1) is considered a clinically useful measure of the combined output of the respiratory…”
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Inspiratory muscle relaxation rate assessed from sniff nasal pressure by Kyroussis, D, Mills, G, Hamnegard, C H, Wragg, S, Road, J, Green, M, Moxham, J

“…BACKGROUND--Slowing of the maximum relaxation rate (MRR) of inspiratory muscles measured from oesophageal pressure (POES) during sniffs has been used as an…”
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Measurement of effective alveolar carbon dioxide tension during spontaneous breathing in normal subjects and patients with chronic airways obstruction by Jordanoglou, J, Koulouris, N, Kyroussis, D, Rapakoulias, P, Vassalos, P, Madianos, J

“…BACKGROUND--The measurement of effective alveolar carbon dioxide tension (PA-CO2eff) is still a matter of debate. It has, however, become common practice to…”
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Effect of maximum ventilation on abdominal muscle relaxation rate by Kyroussis, D., Mills, G. H., Polkey, M. I., Hamnegard, C. H., Wragg, S., Road, J., Green, M., Moxham, J.

“…BACKGROUND: When the demand placed on the respiratory system is increased, the abdominal muscles become vigorously active to achieve expiration and facilitate…”
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Cough Gastric Pressure and Maximum Expiratory Mouth Pressure in Humans by Man, William D-C, Kyroussis, Dimitris, Fleming, Tracey A, Chetta, Alfredo, Harraf, Farzaneh, Mustfa, Naveed, Rafferty, Gerrard F, Polkey, Michael I, Moxham, John

“…Maximal expiratory mouth pressure is a well established test that is used to assess expiratory muscle strength. However, low values are difficult to interpret,…”
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