| Triggering for submaximal exercise level in gastric exercise tonometry: serial lactate, heart rate, or respiratory quotient? | |
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MedLine Citation:
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PMID: 17385029 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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Gastric exercise tonometry is a functional diagnostic test in chronic gastrointestinal ischemia. As maximal exercise can cause false-positive tests, exercise buildup should be controlled to remain submaximal. We evaluated three parameters for monitoring and adjusting exercise levels (heart rate [HR], respiratory quotient [RQ], and serial lactate measurements) in 178 tests in both healthy volunteers and patients suspected of gastrointestinal ischemia. Exercise levels above submaximal occurred in 20% of HR-, 2% of RQ-, and 5% of lactate-monitored tests (P<0.05 for HR vs. RQ and lactate). Low levels were seen in 5% of HR-, 10% of RQ-, and 41% of lactate-monitored tests (P<0.01 for lactate vs. HR and RQ). High levels resulted in 43% false-positive tonometry results compared to 19% of all tests (P<0.001); low levels did not result in more false negatives (5% vs. 6%). Although RQ monitoring yielded the greatest proportion of optimal exercise tests, serial lactate monitoring is our method of choice, combining optimal diagnostic accuracy, low cost, and simplicity. |
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Authors:
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Johannes A Otte; Ellie Oostveen; Peter B F Mensink; Robert H Geelkerken; Jeroen J Kolkman |
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Publication Detail:
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Type: Journal Article Date: 2007-03-24 |
Journal Detail:
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Title: Digestive diseases and sciences Volume: 52 ISSN: 0163-2116 ISO Abbreviation: Dig. Dis. Sci. Publication Date: 2007 Aug |
Date Detail:
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Created Date: 2007-06-28 Completed Date: 2007-08-31 Revised Date: 2009-11-18 |
Medline Journal Info:
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Nlm Unique ID: 7902782 Medline TA: Dig Dis Sci Country: United States |
Other Details:
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Languages: eng Pagination: 1771-5 Citation Subset: AIM; IM |
Affiliation:
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Department of Internal Medicine, Medisch Spectrum Twente, Enschede, The Netherlands. jaotte@zeelandnet.nl |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Adolescent Adult Aged Aged, 80 and over Bicarbonates / blood Environmental Monitoring / methods Exercise Test* Female Heart Rate* Humans Ischemia Lactates / blood* Male Manometry* Middle Aged Respiratory Physiological Phenomena* Stomach / blood supply* |
| Chemical | |
Reg. No./Substance:
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0/Bicarbonates; 0/Lactates |
| Comments/Corrections | |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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