Relation between intra-abdominal pressure and early intestinal ischemia in rats.
abdominal injuries
animal experimentation
compartment syndromes
multiple trauma
Journal
Trauma surgery & acute care open
ISSN: 2397-5776
Titre abrégé: Trauma Surg Acute Care Open
Pays: England
ID NLM: 101698646
Informations de publication
Date de publication:
2020
2020
Historique:
received:
27
08
2020
revised:
20
11
2020
accepted:
20
11
2020
entrez:
11
12
2020
pubmed:
12
12
2020
medline:
12
12
2020
Statut:
epublish
Résumé
Little is known on early irreversible effects of increased intra-abdominal pressure (IAP). Therefore, timing of abdominal decompression among patients with abdominal compartment syndrome remains challenging. The study objective was to determine the relation between IAP and respiratory parameters, hemodynamic parameters, and early intestinal ischemia. Twenty-five anesthetized and ventilated male Sprague-Dawley rats were randomly assigned to five groups exposed to IAPs of 0, 5, 10, 15, or 20 mm Hg for 3 hours. Respiratory parameters, hemodynamic parameters, and serum albumin-cobalt binding (ACB) capacity as measure for systemic ischemia were determined. Intestines were processed for histopathology. IAP was negatively associated with mean arterial pressure at 90 (Spearman correlation coefficient; Rs=-0.446, p=0.025) and 180 min (Rs=-0.466, p=0.019), oxygen saturation at 90 min (Rs=-0.673, p<0.001) and 180 min (Rs=-0.882, p<0.001), and pH value at 90 (Rs=-0.819, p<0.001) and 180 min (Rs=-0.934, p<0.001). There were no associations between IAP and lactate level or ACB capacity. No histological signs for intestinal ischemia were found. Although increasing IAP was associated with respiratory and hemodynamic difficulties, no signs for intestinal ischemia were found. Prognostic and epidemiologic study, level II.
Sections du résumé
BACKGROUND
BACKGROUND
Little is known on early irreversible effects of increased intra-abdominal pressure (IAP). Therefore, timing of abdominal decompression among patients with abdominal compartment syndrome remains challenging. The study objective was to determine the relation between IAP and respiratory parameters, hemodynamic parameters, and early intestinal ischemia.
METHODS
METHODS
Twenty-five anesthetized and ventilated male Sprague-Dawley rats were randomly assigned to five groups exposed to IAPs of 0, 5, 10, 15, or 20 mm Hg for 3 hours. Respiratory parameters, hemodynamic parameters, and serum albumin-cobalt binding (ACB) capacity as measure for systemic ischemia were determined. Intestines were processed for histopathology.
RESULTS
RESULTS
IAP was negatively associated with mean arterial pressure at 90 (Spearman correlation coefficient; Rs=-0.446, p=0.025) and 180 min (Rs=-0.466, p=0.019), oxygen saturation at 90 min (Rs=-0.673, p<0.001) and 180 min (Rs=-0.882, p<0.001), and pH value at 90 (Rs=-0.819, p<0.001) and 180 min (Rs=-0.934, p<0.001). There were no associations between IAP and lactate level or ACB capacity. No histological signs for intestinal ischemia were found.
DISCUSSION
CONCLUSIONS
Although increasing IAP was associated with respiratory and hemodynamic difficulties, no signs for intestinal ischemia were found.
LEVEL OF EVIDENCE
METHODS
Prognostic and epidemiologic study, level II.
Identifiants
pubmed: 33305007
doi: 10.1136/tsaco-2020-000595
pii: tsaco-2020-000595
pmc: PMC7709516
doi:
Types de publication
Journal Article
Langues
eng
Pagination
e000595Informations de copyright
© Author(s) (or their employer(s)) 2020. Re-use permitted under CC BY. Published by BMJ.
Déclaration de conflit d'intérêts
Competing interests: None declared.
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