Comparison between outcome of  surface and intraparenchymatous sampling using microdialysis in an experimental liver ischemia model

Abrahamsson, Pernilla,1972-Umeå universitet,Anestesiologi och intensivvård,Enheten för Anestesi och Intensivvård (författare)

Introduction. We recently have shown that samples from MD probes placed on the surface of the heart reflect metabolic events in the myocardium. This new interesting observation challenges us to consider whether surface application of MD applies to other parenchymatous organs and their surfaces. Material and methods. In thirteen anesthetized pigs transient liver ischemia was achieved by occlusion of arterial and venous inflow to the liver. Two probes on liver surface, and two in parenchyma were perfused with a flow rate of 1 µL/min (n=13). An identical set up was used for probes with a flow rate of 2 µL/min (n=9). Samples were collected for every 15 minute period during 60 minutes of baseline, 45 minutes of ischemia and 60 minutes of reperfusion. Lactate, glucose, pyruvate and glycerol were analysed in MD samples. We focused on relative changes in the present paper. Results. There was a strong agreement in relative lactate and glucose levels between probes placed on liver surface and parenchyma. No significant differences in relative changes of lactate and glucose levels were seen between samples from surface probes and probes in liver parenchyma during equilibration, baseline, ischemia or reperfusion with a flow rate of 1 µL/min. Conclusion. MD sampling applied on the liver surface is a new application area for the MD technique, and may be used to monitor liver metabolism both during physiological and pathophysiological conditions.

MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin Anestesi och intensivvård hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine Anesthesiology and Intensive Care hsv//eng
Microdialysis
liver
ischemia
surface probe
metabolism.
Anaesthetics and intensive care
Anestesiologi och intensivvård
anestesiologi
Anaesthesiology

Åberg, Anna-MajaUmeå universitet,Anestesiologi och intensivvård(Swepub:umu)aban0001 (författare)
Winsö, OlaUmeå universitet,Anestesiologi och intensivvård(Swepub:umu)olwi0001 (författare)
Johansson, GöranUmeå universitet,Anestesiologi och intensivvård(Swepub:umu)gojo0001 (författare)
Haney, MichaelUmeå universitet,Anestesiologi och intensivvård(Swepub:umu)milhay96 (författare)
Blind, Per-JonasKirurgi, Skåne Universitets sjukhus, Lund (författare)
Umeå universitetAnestesiologi och intensivvård (creator_code:org_t)

Av författaren/redakt...: Abrahamsson, Per ...; Åberg, Anna-Maja; Winsö, Ola; Johansson, Göran; Haney, Michael; Blind, Per-Jonas

Om ämnet

MEDICIN OCH HÄLSOVETENSKAP: MEDICIN OCH HÄLS ...; och Klinisk medicin; och Anestesi och int ...

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