[Application of pressure of end-tidal carbon dioxide concentration in polysomnography].
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
; 48(2): 158-60, 2013 Feb.
Article
em Zh
| MEDLINE
| ID: mdl-23710868
ABSTRACT
OBJECTIVE:
The purpose of this study was to investigate the end-tidal carbon dioxide concentration (PETCO2) monitoring coupling in polysomnography for patients with obstructive sleep apnea hypopnea syndrome (OSAHS) during sleep.METHODS:
PETCO2 was sampled through a Oral-Nasal Cannula and measured using micro-stream capnometer. Capnometer was calibrated according to the manufacturer instructions and integrated into the standard polysomnographic recordings. Thirty-eight consecutive patients underwent overnight polysomnography (PSG) were synchronously monitored PETCO2. All variables were recorded continuously and transferred to a computer for analysis.RESULTS:
PETCO2 numeric values and waveform were displayed in real time on the PSG epoch. The mean PETCO2 of wake, non-rapid eye movement, rapid eye movement and TST(?) were negatively correlated with apnea-hypopnea index and arousal index (r were -0.458 â¼ -0.688, P < 0.01), were positively correlated with mean arterial oxygen saturation (SaO2) and lowest SaO2, (r were 0.604 â¼ 0.674, P < 0.01).CONCLUSIONS:
The study provides preliminary data showing that PETCO2 potentially can be used in continuous monitoring of OSAHS patients. And PETCO2 can indicate the severity of OSAHS.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Dióxido de Carbono
/
Apneia Obstrutiva do Sono
Limite:
Adolescent
/
Adult
/
Aged
/
Female
/
Humans
/
Male
/
Middle aged
Idioma:
Zh
Revista:
Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi
Ano de publicação:
2013
Tipo de documento:
Article