Abstract:
BACKGROUND:Diminished endothelial activity (EA) has been associated with an increased risk of incident cardiovascular disease (CAD) events. METHODS:Vasodilatory responses (EA and relative distensibility [RD]) were evaluated noninvasively using iontophoresis of acetylcholine (ACH) and sodium nitroprusside (SNP) and recorded by laser Doppler fluxmetry (LDF) and photoplethysmography (PPG) among 324 patients. RESULTS:The EA after ACH iontophoresis measured by LDF was significantly higher in the younger (<50 years) group than in the older (>50 years) group, 125.4 versus 103.3 integrated arbitrary unit (P < .005). Compared to the older patients, the EA values recorded by LDF were significantly lower in patients with diabetes mellitus (64.9), hypercholesterolemia (83.3), hypertension (88.7), CAD (61.0), and peripheral artery disease (67.4). The findings of RD were similar. CONCLUSIONS:The results indicate that measuring EA using the iontophoresis of ACH or SNP and combined with either LDF or PPG is a viable approach that can discriminate between different clinical groups.
journal_name
Vasc Endovascular Surgjournal_title
Vascular and endovascular surgeryauthors
Fronek A,Allison Mdoi
10.1177/1538574413508229subject
Has Abstractpub_date
2014-02-01 00:00:00pages
134-8issue
2eissn
1538-5744issn
1938-9116pii
1538574413508229journal_volume
48pub_type
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