Document Detail

Carbon dioxide exhalation temporarily increases during electroconvulsive therapy.
MedLine Citation:
PMID:  16421684     Owner:  NLM     Status:  MEDLINE    
Electroconvulsive therapy induces hypermetabolism and elevates oxygen and energy demands, while more carbon dioxide is produced than usual. The purpose of the present study was to determine the elevated carbon dioxide exhalation and the adequate ventilation volume during electroconvulsive therapy. Carbon dioxide exhalation during an electrically induced seizure was continuously monitored by capnography and spirography in 15 patients with endogenous depression. A laryngeal mask airway was used to measure the airway gas flow. Data were collected during a total of 80 electroconvulsive therapy trials. The carbon dioxide exhalation at 1 min after electrical stimulation was higher than the control value (2.8 +/- 0.4 versus 2.3 +/- 0.3 ml.min(-1).kg(-1), mean +/- SD; P < 0.05). The ventilation volume was increased for 3 min after the electrical stimulation to maintain the end-tidal carbon dioxide partial pressure at 35-40 mmHg. The results showed that increasing the ventilation volume by approximately 20% may be necessary to compensate for the increased carbon dioxide exhalation during electroconvulsive therapy.
Shinobu Sakurazawa; Shigeru Saito; Makiko Yamada; Fumio Nishihara; Fumio Goto
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Journal of anesthesia     Volume:  20     ISSN:  0913-8668     ISO Abbreviation:  J Anesth     Publication Date:  2006  
Date Detail:
Created Date:  2006-01-19     Completed Date:  2006-03-02     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  8905667     Medline TA:  J Anesth     Country:  Japan    
Other Details:
Languages:  eng     Pagination:  68-70     Citation Subset:  IM    
Department of Anesthesiology, Gunma University Graduate School of Medicine, 3-39-22 Showamachi, Maebashi 371-8511, Japan.
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MeSH Terms
Carbon Dioxide / metabolism*
Electroconvulsive Therapy*
Laryngeal Masks
Middle Aged
Reg. No./Substance:
124-38-9/Carbon Dioxide

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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