[The relationship between mouth pressure or tracheal pressure and esophagus pressure and diaphragmatic pressure]

[The relationship between mouth pressure or tracheal pressure and esophagus pressure and diaphragmatic pressure] Research Abstract Details 

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[The relationship between mouth pressure or tracheal pressure and esophagus pressure and diaphragmatic pressure] Abstract Text:

Ze-guang Zheng,Rong-chang Chen,Ge Yu,Feng-quan Yang,Xing-jie Zhang,Yi-min Li,Jing-ping Zheng,Nan-shan Zhong,

OBJECTIVE: To investigate the relationship between mouth pressure (Pmo) or tracheal pressure (Ptr) and esophagus pressure (Pes) or transdiaphragmatic pressure. METHODS: Seventeen patients were involved in the study. Maximal inspiratory pressure (MIP), maximal transdiaphragmatic pressure (Pdi(max)), maximal esophagus pressure (Pes(max)), twitch mouth pressure (TwPmo), twitch transdiaphragmatic pressure (TwPdi) and twitch esophagus pressure (TwPes) were measured before narcotization as a normal procedure for the abdominal operation and twitch tracheal pressure (TwPtr(nar)), twitch esophagus pressure (TwPes(nar)) and twitch transdiaphragmatic pressure (TwPdi(nar)) were dynamically monitored during narcotization. RESULTS: (1) The correlation coefficient (r) values between Pdi(max) and MIP, TwPdi and TwPmo, TwPdi(nar) and TwPtr(nar), Pes(max) and MIP, TwPes and TwPmo, TwPes(nar) and TwPtr(nar) were 0.976 +/- 0.030, 0.816 +/- 0.155, 0.923 +/- 0.446, 0.981 +/- 0.185, 0.829 +/- 0.168 and 0.955 +/- 0.292, respectively. (2) The coefficient variation (CV) of MIP, Pes(max), Pdi(max), TwPmo, TwPes and TwPdi were (14.2 +/- 4.7)%, (15.2 +/- 4.3)%, (15.5 +/- 4.1)%, (30.4 +/- 15.9)%, (10.8 +/- 5.1)% and (9.9 +/- 4.0)%, respectively. The CV of TwPmo was the highest (compare with others, all P < 0.05) and that of TwPes and TwPdi was the lowest (compare with others, all P < 0.05). There was no significant difference among MIP, Pes(max) and Pdi(max) (P > 0.05). (3) The r value between the changing values of TwPtr(nar) and TwPdi(nar) or TwPes(nar) during narcotization were 0.839 or 0.894 (P = 0.000, respectively). CONCLUSION: The measurement of MIP and TwPmo should be repeated and the highest value should be chosen in order to reduce the possibility of underestimating the function of diaphragm, which could be dynamically monitored by TwPtr(nar).

[The relationship between mouth pressure or tracheal pressure and esophagus pressure and diaphragmatic pressure] Publishing Authors By Initials

ZG Zheng,RC Chen,G Yu,FQ Yang,XJ Zhang,YM Li,JP Zheng,NS Zhong,

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[The relationship between mouth pressure or tracheal pressure and esophagus pressure and diaphragmatic pressure] Journal Published:

PUBLICATION TYPE: Journal Article

Journal: Zhonghua jie he he hu xi za zhi = Zhonghua jiehe h

VOLUME: 29

Page Numbers: 181-4

Journal Abbreviation: Zhonghua Jie He He Hu Xi Za Zh

ISSN: 1001-0939

DAY: 8

MONTH: Mar

YEAR: 2006

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LANGUAGE: chi

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AFFILIATION: Guangzhou Institute of Respiratory Diseases, First Affiliated Hospital, Guangzhou Medical College, Guangzhou 510120, China.

Country: China

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MEDLINETA: Zhonghua Jie He He Hu Xi Za Zh

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