Psychophysiologic responses of mechanically ventilated patients to music: a pilot study

1995 ◽  
Vol 4 (3) ◽  
pp. 233-238 ◽  
Author(s):  
LL Chlan
Keyword(s):  
Heart Rate ◽  
Respiratory Rate ◽  
Repeated Measures ◽  
Mood States ◽  
Profile Of Mood States ◽  
Music Listening ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Over Time ◽  
Ventilated Patients

BACKGROUND: Although mechanically ventilated patients experience numerous stressors, they have not been included in music therapy stress reduction and relaxation studies. OBJECTIVE: To examine selected psychophysiologic responses of mechanically ventilated patients to music. METHODS: A two-group experimental design with pretest, posttest, and repeated measures was used. Twenty mechanically ventilated patients were randomized to a music-listening group or a nonmusic (headphones only) group. Physiologic dependent measures--heart rate and rhythm, respiratory rate, systolic and diastolic blood pressure, oxygen saturation, and airway pressure--were collected at timed intervals. Psychologic data were collected before and after intervention using the Profile of Mood States. RESULTS: Using repeated measures analysis of variance, results for heart rate and respiratory rate over time and over time between groups were significant. Between-group differences were significant for respiratory rate. Significant differences were found via t test for the music group's Profile of Mood States scores. No adverse cardiovascular responses were noted for either group. CONCLUSIONS: Data indicated that music listening decreased heart rate, respiratory rate, and Profile of Mood States scores, indicating relaxation and mood improvement.

scholarly journals Inter-country variability over time in the mortality of mechanically ventilated patients

2020 ◽  
Vol 46 (3) ◽  
pp. 444-453 ◽  
Author(s):  
Oscar Peñuelas ◽  
Alfonso Muriel ◽  
Victor Abraira ◽  
Fernando Frutos-Vivar ◽  
Jordi Mancebo ◽  
...  
Keyword(s):  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Over Time ◽  
Ventilated Patients

Changes in Mood during Exercise

2001 ◽  
Vol 7 (2) ◽  
pp. 24 ◽  
Author(s):  
Paul D. O'Halloran ◽  
Robert J. Kirkby ◽  
Kate E. Webster
Keyword(s):  
Heart Rate ◽  
Repeated Measures ◽  
Negative Mood ◽  
Testing Procedure ◽  
Mood States ◽  
Profile Of Mood States ◽  
Baseline Assessment ◽  
Maximum Heart Rate ◽  
Recreational Runners ◽  
Post Hoc

The purpose of this study was to investigate changes in mood during exercise. Twenty recreational runners were administered the instrument, Profile of Mood States, at 5, 15, 25, and 35 minutes during a 40-minute treadmill run. Half of the sample ran at 65% of their age-predicted maximum heart rate and half ran at 85% of their age-predicted maximum heart rate. An additional 10 runners were assessed during an equivalent period of quiet reading. Analysis by a series of 2-way Repeated Measures ANOVAs with post hoc tests revealed that mood did not change during the condition in which participants ran at 65% of their maximum heart rate. During the run conducted at 85% of maximum heart rate, levels of fatigue were significantly higher, relative to prerun levels, by 15 minutes into the run and remained elevated at each of the subsequent assessment points (at 25 and 35 minutes and 10 minutes following the run). No alterations in mood were reported during the control condition. It was also noteworthy that mood was generally more negative at the assessment designed to familiarise participants with the testing procedure than it was at the later precondition (baseline) assessment. The present findings supported reports linking negative mood with demanding physical activity and emphasised the importance of using a familiarisation assessment of mood prior to preexercise measures.

Poor Correlation between Diaphragm Thickening Fraction and Transdiaphragmatic Pressure in Mechanically Ventilated Patients and Healthy Subjects

2021 ◽  
Author(s):  
Thomas Poulard ◽  
Damien Bachasson ◽  
Quentin Fossé ◽  
Marie-Cécile Niérat ◽  
Jean-Yves Hogrel ◽  
...  
Keyword(s):  
Repeated Measures ◽  
Healthy Subjects ◽  
Healthy Individuals ◽  
Transdiaphragmatic Pressure ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Diaphragm Function ◽  
Pressure Time ◽  
Pressure Time Product ◽  
Ventilated Patients

Background The relationship between the diaphragm thickening fraction and the transdiaphragmatic pressure, the reference method to evaluate the diaphragm function, has not been clearly established. This study investigated the global and intraindividual relationship between the thickening fraction of the diaphragm and the transdiaphragmatic pressure. The authors hypothesized that the diaphragm thickening fraction would be positively and significantly correlated to the transdiaphragmatic pressure, in both healthy participants and ventilated patients. Methods Fourteen healthy individuals and 25 mechanically ventilated patients (enrolled in two previous physiologic investigations) participated in the current study. The zone of apposition of the right hemidiaphragm was imaged simultaneously to transdiaphragmatic pressure recording within different breathing conditions, i.e., external inspiratory threshold loading in healthy individuals and various pressure support settings in patients. A blinded offline breath-by-breath analysis synchronously computed the changes in transdiaphragmatic pressure, the diaphragm pressure-time product, and diaphragm thickening fraction. Global and intraindividual relationships between variables were assessed. Results In healthy subjects, both changes in transdiaphragmatic pressure and diaphragm pressure-time product were moderately correlated to diaphragm thickening fraction (repeated measures correlation = 0.40, P < 0.0001; and repeated measures correlation = 0.38, P < 0.0001, respectively). In mechanically ventilated patients, changes in transdiaphragmatic pressure and thickening fraction were weakly correlated (repeated measures correlation = 0.11, P = 0.008), while diaphragm pressure-time product and thickening fraction were not (repeated measures correlation = 0.04, P = 0.396). Individually, changes in transdiaphragmatic pressure and thickening fraction were significantly correlated in 8 of 14 healthy subjects (ρ = 0.30 to 0.85, all P < 0.05) and in 2 of 25 mechanically ventilated patients (ρ = 0.47 to 0.64, all P < 0.05). Diaphragm pressure-time product and thickening fraction correlated in 8 of 14 healthy subjects (ρ = 0.41 to 0.82, all P < 0.02) and in 2 of 25 mechanically ventilated patients (ρ = 0.63 to 0.66, all P < 0.01). Conclusions Overall, diaphragm function as assessed with transdiaphragmatic pressure was weakly related to diaphragm thickening fraction. The diaphragm thickening fraction should not be used in healthy subjects or ventilated patients when changes in diaphragm function are evaluated. Editor’s Perspective What We Already Know about This Topic What This Article Tells Us That Is New

1093: CHANGES IN THE LUNG MICROBIOME OVER TIME IN MECHANICALLY VENTILATED PATIENTS

2020 ◽  
Vol 48 (1) ◽  
pp. 526-526
Author(s):  
Mary Sole ◽  
Bassam Abomoelak ◽  
Chirajyoti Deb ◽  
Shibu Yooseph ◽  
Steven Talbert ◽  
...  
Keyword(s):  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Lung Microbiome ◽  
Over Time ◽  
Ventilated Patients

Breathing cardiovascular variability and baroreflex in mechanically ventilated patients

2008 ◽  
Vol 295 (6) ◽  
pp. R1934-R1940 ◽  
Author(s):  
Andry Van de Louw ◽  
Claire Médigue ◽  
Yves Papelier ◽  
François Cottin
Keyword(s):  
Blood Pressure ◽  
Heart Rate ◽  
Phase Difference ◽  
Airway Pressure ◽  
Baroreflex Sensitivity ◽  
Positive Pressure ◽  
Signal Phase ◽  
Mechanically Ventilated ◽  
Mechanically Ventilated Patients ◽  
Ventilated Patients

Heart rate and blood pressure variations during spontaneous ventilation are related to the negative airway pressure during inspiration. Inspiratory airway pressure is positive during mechanical ventilation, suggesting that reversal of the normal baroreflex-mediated pattern of variability may occur. We investigated heart rate and blood pressure variability and baroreflex sensitivity in 17 mechanically ventilated patients. ECG (RR intervals), invasive systolic blood pressure (SBP), and respiratory flow signals were recorded. High-frequency (HF) amplitude of RR and SBP time series and HF phase differences between RR, SBP, and ventilatory signals were continuously computed by Complex DeModulation (CDM). Cross-spectral analysis was used to assess the coherence and the gain functions between RR and SBP, yielding baroreflex sensitivity indices. The HF phase difference between SBP and ventilatory signals was nearly constant in all patients with inversion of SBP variability during the ventilator cycle compared with cycling with negative inspiratory pressure to replicate spontaneous breathing. In 12 patients ( group 1), the phase difference between RR and ventilatory signals changed over time and the HF-RR amplitude varied. In the remaining five patients ( group 2), RR-ventilatory signal phase and HF-RR amplitude showed little change; however, only one of these patients exhibited a RR-ventilatory signal phase difference mimicking the normal pattern of respiratory sinus arrhythmia. Spectral coherence between RR and SBP was lower in the group with phase difference changes. Positive pressure ventilation exerts mainly a mechanical effect on SBP, whereas its influence on HR variability seems more complex, suggesting a role for neural influences.

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