Document Detail

Pulse oximeter waveforms from the finger and toe during lumbar epidural anesthesia.
MedLine Citation:
PMID:  8489975     Owner:  NLM     Status:  MEDLINE    
BACKGROUND AND OBJECTIVES: To determine whether lumbar epidural anesthesia affects pulse oximeter signals in the upper or lower extremity, 13 ASA I patients were studied. METHODS: Temperature and pulse oximeter probes were placed on the finger and the toe. RESULTS: After epidural injection, the amplitude of the pulse oximeter waveform on the toe increased eight-fold but declined by 50% in the finger. The increase in amplitude of the pulse oximeter waveform in the foot preceded the temperature rise. CONCLUSIONS: More reliable pulse oximeter signals may be obtained from the toe than the finger during lumbar epidural anesthesia. Furthermore, the increase in the pulse amplitude from the toe may aid in the early detection of successful epidural block.
R Mineo; N E Sharrock
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Regional anesthesia     Volume:  18     ISSN:  0146-521X     ISO Abbreviation:  Reg Anesth     Publication Date:    1993 Mar-Apr
Date Detail:
Created Date:  1993-06-11     Completed Date:  1993-06-11     Revised Date:  2010-03-24    
Medline Journal Info:
Nlm Unique ID:  7707549     Medline TA:  Reg Anesth     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  106-9     Citation Subset:  IM    
Department of Anesthesiology, Hospital For Special Surgery, Cornell University Medical College, New York, New York 10021.
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MeSH Terms
Anesthesia, Epidural*
Fingers / blood supply*
Knee Joint
Middle Aged
Oxygen / blood*
Toes / blood supply*
Reg. No./Substance:

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