Duodenum edema due to reduced lymphatic drainage leads to increased inflammation in a porcine endotoxemic model.
Marchesi, Silvia LU
; Larsson, Anders
; Hedenstierna, Göran
; Abujazar, Mohammed
; Ahlström, Håkan
and Lipcsey, Miklos
(2022)
In Intensive Care Medicine Experimental
10.
p.1-16
- Abstract
- Background
Interventions, such as mechanical ventilation with high positive end-expiratory pressure (PEEP), increase inflammation in abdominal organs. This effect could be due to reduced venous return and impaired splanchnic perfusion, or intestinal edema by reduced lymphatic drainage. However, it is not clear whether abdominal edema per se leads to increased intestinal inflammation when perfusion is normal. The aim of the presented study was to investigate if an impaired thoracic duct function can induce edema of the abdominal organs and if it is associated to increase inflammation when perfusion is maintained normal. In a porcine model, endotoxin was used to induce systemic inflammation. In the Edema group (n = 6) the abdominal... (More) - Background
Interventions, such as mechanical ventilation with high positive end-expiratory pressure (PEEP), increase inflammation in abdominal organs. This effect could be due to reduced venous return and impaired splanchnic perfusion, or intestinal edema by reduced lymphatic drainage. However, it is not clear whether abdominal edema per se leads to increased intestinal inflammation when perfusion is normal. The aim of the presented study was to investigate if an impaired thoracic duct function can induce edema of the abdominal organs and if it is associated to increase inflammation when perfusion is maintained normal. In a porcine model, endotoxin was used to induce systemic inflammation. In the Edema group (n = 6) the abdominal portion of the thoracic duct was ligated, while in the Control group (7 animals) it was maintained intact. Half of the animals underwent a diffusion weighted-magnetic resonance imaging (DW-MRI) at the end of the 6-h observation period to determine the abdominal organ perfusion. Edema in abdominal organs was assessed using wet–dry weight and with MRI. Inflammation was assessed by measuring cytokine concentrations in abdominal organs and blood as well as histopathological analysis of the abdominal organs.
Results
Organ perfusion was similar in both groups, but the Edema group had more intestinal (duodenum) edema, ascites, higher intra-abdominal pressure (IAP) at the end of observation time, and higher cytokine concentration in the small intestine. Systemic cytokines (from blood samples) correlated with IAP.
Conclusions
In this experimental endotoxemic porcine model, the thoracic duct’s ligation enhanced edema formation in the duodenum, and it was associated with increased inflammation. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/52f85dc7-3516-4241-a910-52af426a1543
- author
- Marchesi, Silvia
LU
; Larsson, Anders
; Hedenstierna, Göran
; Abujazar, Mohammed
; Ahlström, Håkan
and Lipcsey, Miklos
- publishing date
- 2022
- type
- Contribution to journal
- publication status
- published
- in
- Intensive Care Medicine Experimental
- volume
- 10
- article number
- 17
- pages
- 1 - 16
- publisher
- Springer Nature
- external identifiers
-
- scopus:85129656599
- ISSN
- 2197-425X
- DOI
- 10.1186/s40635-022-00444-9
- language
- English
- LU publication?
- no
- id
- 52f85dc7-3516-4241-a910-52af426a1543
- date added to LUP
- 2025-03-07 13:36:00
- date last changed
- 2025-03-11 03:24:53
@article{52f85dc7-3516-4241-a910-52af426a1543,
abstract = {{Background<br/>Interventions, such as mechanical ventilation with high positive end-expiratory pressure (PEEP), increase inflammation in abdominal organs. This effect could be due to reduced venous return and impaired splanchnic perfusion, or intestinal edema by reduced lymphatic drainage. However, it is not clear whether abdominal edema per se leads to increased intestinal inflammation when perfusion is normal. The aim of the presented study was to investigate if an impaired thoracic duct function can induce edema of the abdominal organs and if it is associated to increase inflammation when perfusion is maintained normal. In a porcine model, endotoxin was used to induce systemic inflammation. In the Edema group (n = 6) the abdominal portion of the thoracic duct was ligated, while in the Control group (7 animals) it was maintained intact. Half of the animals underwent a diffusion weighted-magnetic resonance imaging (DW-MRI) at the end of the 6-h observation period to determine the abdominal organ perfusion. Edema in abdominal organs was assessed using wet–dry weight and with MRI. Inflammation was assessed by measuring cytokine concentrations in abdominal organs and blood as well as histopathological analysis of the abdominal organs.<br/><br/>Results<br/>Organ perfusion was similar in both groups, but the Edema group had more intestinal (duodenum) edema, ascites, higher intra-abdominal pressure (IAP) at the end of observation time, and higher cytokine concentration in the small intestine. Systemic cytokines (from blood samples) correlated with IAP.<br/><br/>Conclusions<br/>In this experimental endotoxemic porcine model, the thoracic duct’s ligation enhanced edema formation in the duodenum, and it was associated with increased inflammation.}},
author = {{Marchesi, Silvia and Larsson, Anders and Hedenstierna, Göran and Abujazar, Mohammed and Ahlström, Håkan and Lipcsey, Miklos}},
issn = {{2197-425X}},
language = {{eng}},
pages = {{1--16}},
publisher = {{Springer Nature}},
series = {{Intensive Care Medicine Experimental}},
title = {{Duodenum edema due to reduced lymphatic drainage leads to increased inflammation in a porcine endotoxemic model.}},
url = {{http://dx.doi.org/10.1186/s40635-022-00444-9}},
doi = {{10.1186/s40635-022-00444-9}},
volume = {{10}},
year = {{2022}},
}