Levosimendan Reduces Lung Injury in a Canine Model of Cardiopulmonary Bypass
Korean Circulation Journal
;
: 402-407, 2016.
Article
Dans Anglais
| WPRIM
| ID: wpr-43725
ABSTRACT
BACKGROUND AND OBJECTIVES:
To explore the lung-protective effect of levosimendan (LS) during cardiopulmonary bypass in a canine model by determining the wet/dry weight (W/D) ratio of lung tissue, malonaldehyde (MDA) and superoxide dismutase (SOD) concentrations, and performing a histological evaluation. MATERIALS ANDMETHODS:
Thirty-two canines were divided randomly into four groups and underwent a routine aortic cross-clamping cardiopulmonary bypass procedure for 1 h, followed by recovery for 2 h. Animals were handled as follows group C (means control group), no special treatment after aortic cross clamping; group P (means pulmonary artery perfusion group), pulmonary artery perfusion with cold oxygenated blood after aortic cross clamping; group LSIV (means intravenous injection of LS group), intravenous injection of LS (65 µg/kg) before thoracotomy, and the rest of the procedure was identical to the control group; group LPS (means pulmonary perfusion with LS group), pulmonary perfusion with cold oxygenated blood combined with LS (65 µg/kg) after aortic cross clamping. Lung tissues were removed and subjected to evaluation of pathological alterations, W/D ratio and MDA and SOD concentrations.RESULTS:
In group C, the W/D ratio and MDA concentration were higher, while the SOD concentrations were lower (p<0.05). Compared with groups P and LSIV, the MDA concentration was lower in group LPS, while that of SOD was higher (p<0.05); Light and electron microscopy indicated that LS intervention reduced impairment of lung tissues.CONCLUSION:
Our findings suggest that LS plays an important role in protecting lung tissues.
Texte intégral:
Disponible
Indice:
WPRIM (Pacifique occidental)
Sujet Principal:
Oxygène
/
Perfusion
/
Artère pulmonaire
/
Superoxide dismutase
/
Thoracotomie
/
Microscopie électronique
/
Pontage cardiopulmonaire
/
Constriction
/
Lésion pulmonaire
/
Injections veineuses
Limites du sujet:
Animaux
langue:
Anglais
Texte intégral:
Korean Circulation Journal
Année:
2016
Type:
Article
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