Continuous measurement of gastric blood flow by laser-Doppler flowmetry during gastroscopy.
Endoscopic laser-Doppler flowmetry (LDF) of gastric blood flow (GBF) was performed simultaneously with intragastric manometry to detect a possible correlation between GBF and luminal pressure during gastroscopy. By increasing luminal air pressure from 10 to 20 cm H2O a significant reduction in GBF was observed. Regional differences in GBF were also demonstrated. Variations in luminal air pressure have a significant influence on GBF as measured by LDF, and therefore intragastric manometry and standardization of intraluminal air pressure is necessary in endoscopic LDF measurements.
Christoforidis
E C
EC
Dept. of Surgical Gastroenterology, University of Arhus, Denmark.
Hovendal
C
C
Bjerring
P
P
Kruse
A
A
D000328:Adult; D000368:Aged; D005773:Gastroscopy; D006801:Humans; D008365:Manometry; D008875:Middle Aged; D012039:Regional Blood Flow; D012212:Rheology; D013270:Stomach / Q000098:blood supply*