Document Detail


Evaluation of Digital Thermal Monitoring as a Tool to Assess Perioperative Vascular Reactivity.
MedLine Citation:
PMID:  23197179     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Aim: The inflammatory response following tissue injury after major surgery is known to affect endothelial function and vascular reactivity. In this study we evaluated the utility of bedside Digital Thermal Monitoring (DTM) as a surrogate for evaluating vascular function in the postoperative period.Methods: Ischemia-induced reactive hyperemia variables were measured in sixty patients scheduled for major thoracic surgery using DTM (VENDYS 5000BC; Endothelix, Inc., Houston, TX, USA) at baseline and at 24, 48, 72 hours, and day 5 postoperatively. Furthermore, baseline DTM variables (TR, aTR and AUC(TR)) and postoperative kinetics of these variables were compared among patients with and without preoperative chemo-radiation and cardiovascular risk factors.Results: There were no significant differences in the DTM parameters measured at baseline and on each of the studied postoperative days. Compared to the baseline, the lowest measures of all variables were observed 24 hrs postoperatively and the highest measures of all variables were observed at 72 hrs. Patients with abdominal obesity and smoking had lower DTM values than the rest of the study group.Conclusions: In our study, DTM as measured by the VENDYS 5000BC DTM system (Endothelix, Inc.) did not reveal significant changes in ischemia-induced reactive hyperemia (vascular reactivity) between the baseline and after surgery in the postoperative period. Patients with certain cardiovascular risk factors (abdominal obesity, smoking) had a significant lower DTM signal. Whether this novel non-invasive technique is able to serve as a perioperative diagnostic tool for patients in a clinical setting warrants further study.
Authors:
Robert Schier; Hanke E Marcus; Eduardo Mansur; Xiudong Lei; Randa El-Zein; Reza Mehran; Ron Purugganan; Jagtar Singh Heir; Bernhard Riedel; Vijaya Gottumukkala
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2012-11-29
Journal Detail:
Title:  Journal of atherosclerosis and thrombosis     Volume:  -     ISSN:  1880-3873     ISO Abbreviation:  J. Atheroscler. Thromb.     Publication Date:  2012 Nov 
Date Detail:
Created Date:  2012-11-30     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9506298     Medline TA:  J Atheroscler Thromb     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Affiliation:
Department of Anaesthesiology and Intensive Care Medicine, University Hospital of Cologne.
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