We have over 12,000 students, from over 100 countries, within one of the safest campuses in the UK


97% of Lancaster students go into work or further study within six months of graduating

Home > Research > Publications & Outputs > Skin blood flow and its oscillatory components ...
View graph of relations

Text available via DOI:

« Back

Skin blood flow and its oscillatory components in patients with acute myocardial infarction.

Research output: Contribution to journalJournal article


<mark>Journal publication date</mark>01/2008
<mark>Journal</mark>Journal of Vascular Research
Number of pages9
<mark>Original language</mark>English


Background/Aims: Laser Doppler flowmetry ( LDF) was used to determine the influence of acute myocardial infarction (AMI) and of successful reperfusion treatment on basal skin blood flow and its oscillatory components. Methods: Skin LDF was performed on all extremities in 58 patients 4 - 9 days after AMI (Killip class I), and in 71 healthy age- and sex-matched controls. Wavelet analysis was applied to evaluate oscillatory components within the interval 0.005-2 Hz. Results: AMI patients had reduced mean flow (p < 0.01) and oscillatory components (p < 0.04) in all extremities. Reperfused (n = 40), compared to nonreperfused ( n = 18), patients had higher mean flow and total spectral amplitude at all recording points. The difference was statistically significant only in legs ( group median LDF in the left leg was 9.68 AU for reperfused and 5.71 AU for nonreperfused patients, p < 0.04, and 11.47 and 4.24 AU in the right leg, p < 0.01). Reperfused patients had significantly higher total spectral amplitude in both legs (p < 0.04). Conclusions: In AMI patients, reduced skin blood flow and its oscillatory components may reflect ongoing neurohumoral activation despite absence of clinically apparent heart failure. The reduction of blood flow and its oscillatory components was larger in nonreperfused AMI patients, although they had a comparable left ventricular function.