Document Detail

Near-Infrared Spectroscopic Monitoring During Cardiopulmonary Exercise Testing Detects Anaerobic Threshold.
MedLine Citation:
PMID:  22349729     Owner:  NLM     Status:  Publisher    
Cardiopulmonary exercise testing (CPET) provides assessment of the integrative responses involving the pulmonary, cardiovascular, and skeletal muscle systems. Application of exercise testing remains limited to children who are able to understand and cooperate with the exercise protocol. Near-infrared spectroscopy (NIRS) provides a noninvasive, continuous method to monitor regional tissue oxygenation (rSO2). Our specific aim was to predict anaerobic threshold (AT) during CPET noninvasively using two-site NIRS monitoring. Achievement of a practical noninvasive technology for estimating AT will increase the compatibility of CPET. Patients without structural or acquired heart disease were eligible for inclusion if they were ordered to undergo CPET by a cardiologist. Data from 51 subjects was analyzed. The ventilatory anaerobic threshold (VAT) was computed on [Formula: see text] and respiratory quotient post hoc using the standard V-slope method. The inflection points of the regional rSO2 time-series were identified as the noninvasive regional NIRS AT for each of the two monitored regions (cerebral and kidney). AT calculation made using an average of kidney and brain NIRS matched the calculation made by VAT for the same patient. Two-site NIRS monitoring of visceral organs is a predictor of AT.
Rohit P Rao; Michael J Danduran; Rohit S Loomba; Jennifer E Dixon; George M Hoffman
Related Documents :
11291599 - Cardiac toxicity of singlet oxygen: implication in reperfusion injury.
9386109 - Na+/h+ exchanger inhibitor hoe-642 improves cardioplegic myocardial preservation under ...
2478769 - Concentration-dependent effects of purine/xanthine oxidase on release of 6-keto-pgf1 al...
10577439 - Relation between aerobic capacity and extent of myocardial ischemia in patients with no...
15803439 - Angiotensin (1-7) re-establishes impulse conduction in cardiac muscle during ischaemia-...
8281369 - Peroxide plasma level in patients with coronary heart disease as a possible indicator o...
1757579 - Prediction of intention to exercise of individuals who have suffered from coronary hear...
19868709 - Blood destruction during exercise : ii. demonstration of blood destruction in animals e...
12833179 - Effect of anthocyanins on selected biochemical parameters in rats exposed to cadmium.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-2-19
Journal Detail:
Title:  Pediatric cardiology     Volume:  -     ISSN:  1432-1971     ISO Abbreviation:  -     Publication Date:  2012 Feb 
Date Detail:
Created Date:  2012-2-21     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8003849     Medline TA:  Pediatr Cardiol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Sections of Cardiology and Critical Care, Phoenix Children's Hospital, Phoenix, AZ, USA,
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms

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

Previous Document:  Submicroscopic Chromosomal Copy Number Variations Identified in Children With Hypoplastic Left Heart...
Next Document:  Exercise Stress Echocardiography After Childhood Ross Surgery: Functional Outcome in 26 Patients Fro...