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231223s2003 xx ||||| 00| ||chi c |
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|a pubmed25n0482.xml
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|a (DE-627)NLM144596989
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|a (NLM)14754533
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|a DE-627
|b ger
|c DE-627
|e rakwb
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| 041 |
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|a chi
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| 100 |
1 |
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|a Yang, Yun-gang
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Diagnostic study on children's diaphragmatic fatigue
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| 264 |
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1 |
|c 2003
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| 336 |
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|a Text
|b txt
|2 rdacontent
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| 337 |
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|a ohne Hilfsmittel zu benutzen
|b n
|2 rdamedia
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| 338 |
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|a Band
|b nc
|2 rdacarrier
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| 500 |
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|a Date Completed 04.05.2004
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|a Date Revised 07.06.2016
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|a published: Print
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|a Citation Status MEDLINE
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| 520 |
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|a OBJECTIVE: In the recent twenty years, the diaphragmatic contraction, relaxation functions and electric activity have been explored through electromyography (EMG) and transdiaphragmatic pressure (Pdi) determination. But these techniques required some complex and expensive instruments, so the diagnosis and treatment of children's diaphragmatic fatigue have not been well evaluated. The present study explored the diagnosis of children's diaphragmatic fatigue through measuring ribcage-abdomen motion and analyzed its asynchrony
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|a METHODS: Fifty-three children (male 37, female 16, and age rage from 1 months to 9 years) with respiratory rate > 30 breaths/min, heart rate > 110 beats/min, and respiratory dysfunction had asynchronized ribcage-abdomen motion showed by impedance respirograph (IRG). The authors observed whether ribcage-abdomen motion was synchronic and calculated M levels (staggered peak time/total duration of the breathing cycle). The ribcage and abdomen outputs were displayed on vertical (for rib cage) and horizontal (for abdomen) axes of X-Y instrument. In addition, the change of respiratory frequency and heart rate was observed and arterial blood-gas analysis was also performed
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|a RESULTS: (1) M levels in one-dimensional IRG were positively correlated with alpha angle in two-dimensional IRG (r = 0.956, P < 0.001). Asynchronized respiratory motions could be divided into three types. type I showed completely contra-directional movements of respiration, M levels for (48.1 +/- 4.4)%, an irregularly clockwise loop in the two dimensional IRG, and alpha angle for (138.3 +/- 15.0) degrees. In type II, one dimensional IRG showed displaced peak of the chest and abdomen motion curves, M levels were (16.5 +/- 4.7)%, two dimensional IRG was displaced in a counterclockwise direction, and alpha angle was (55.3 +/- 10.8) degrees. In type III, abdominal motion curve of one dimensional IRG had double peaks, M levels were 0, two dimensional IRG was presented as 8-shaped double circles, alpha angle was (41.3 +/- 3.8) degrees; (2) pH levels in the patients with type I and type II diaphragmatic fatigue were significantly lower, and PCO(2) levels were significantly higher than those with type III or in the normal subjects (P < 0.001 for all), but there was no statistically significant difference between type III and the normal subjects (P > 0.05); (3) Both of respiratory rate and heart rate in type I, type II and type III were higher than those in the normal subjects (all P < 0.001), and the differences among the three types were significant (P < 0.001 for all); (4) Both M levels and alpha angle were negatively correlated with pH levels (r = -0.514, P < 0.001 and r = -0.497, P < 0.001), while positively correlated with PCO(2) levels (r = 0.672, P < 0.001 and r = 0.625, P = 0.01)
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| 520 |
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|a CONCLUSIONS: (1) IRG can be reliably used to diagnose children's diaphragmatic fatigue. This technique is simple and easy to perform and non-invasive. It is therefore worthy of recommending for further clinical investigations. (2) According to the characteristics of IRG, diaphragmatic fatigue can be divided into three types. (3) The development of children's diaphragmatic fatigue has a series of characteristic changes. (4) To avoid the patients suffering from respiratory failure, it is the key time to adopt the policies of prevention and treatment when IRG shows signs of type III diaphragmatic fatigue
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| 650 |
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|a Comparative Study
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|a English Abstract
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| 650 |
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|a Journal Article
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| 700 |
1 |
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|a Zhang, Zheng-xia
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hu, Liang-gang
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yan, Chun-xue
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Zhonghua er ke za zhi = Chinese journal of pediatrics
|d 1960
|g 41(2003), 4 vom: 31. Apr., Seite 274-7
|w (DE-627)NLM136249191
|x 0578-1310
|7 nnns
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| 773 |
1 |
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|g volume:41
|g year:2003
|g number:4
|g day:31
|g month:04
|g pages:274-7
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|d 41
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|e 4
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|h 274-7
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