title: Continuous measurement of gastric blood flow by laser-Doppler flowmetry during gastroscopy.
abstract: 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.
authors.affiliation: Dept. of Surgical Gastroenterology, University of Arhus, Denmark.
authors.forename: E C
authors.initials: EC
authors.lastname: Christoforidis
authors.forename: C
authors.initials: C
authors.lastname: Hovendal
authors.forename: P
authors.initials: P
authors.lastname: Bjerring
authors.forename: A
authors.initials: A
authors.lastname: Kruse
mesh_terms: D000328:Adult; D000368:Aged; D005773:Gastroscopy; D006801:Humans; D008365:Manometry; D008875:Middle Aged; D012039:Regional Blood Flow; D012212:Rheology; D013270:Stomach / Q000098:blood supply*