Continuous Measurement of Gastric Blood Flow by Laser-Doppler Flowmetry during Gastroscopy

E. C. Christoforidis Depts. of Surgical Gastroenterology and Dermatology Århus Kommunehospital, University of Århus, Århus, Denmark

C. Hovendal Depts. of Surgical Gastroenterology and Dermatology Århus Kommunehospital, University of Århus, Århus, Denmark

P. Bjerring Depts. of Surgical Gastroenterology and Dermatology Århus Kommunehospital, University of Århus, Århus, Denmark

A. Kruse Depts. of Surgical Gastroenterology and Dermatology Århus Kommunehospital, University of Århus, Århus, Denmark

Abstract

Christoforidis EC, Hovendal C, Bjerring P, Kruse A. Continuous measurement of gastric blood flow by laser-Doppler flowmetry during gastroscopy. Scand J Gastroenterol 1989, 24, 16–20

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.

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Continuous Measurement of Gastric Blood Flow by Laser-Doppler Flowmetry during Gastroscopy

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Continuous Measurement of Gastric Blood Flow by Laser-Doppler Flowmetry during Gastroscopy

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