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[Effect of dexmedetomidine on acute lung injury in experimental ischemia-reperfusion model].

Abstract：

PURPOSE:Ischemia-reperfusion injury is one of the consequences of tourniquet application for extremity surgery. The aim of the study was to establish the effect of dexmedetomidine on the acute lung injury following lower extremity experimental ischemia-reperfusion model in rats. METHODS:Twenty-eight Wistar-Albino breed rats were recruited after Ethics Committee approval and allocated into 4 groups, each with 7 subjects. Group 1 (SHAM) received only anesthesia. Group 2 (IR) had experienced 3h of ischemia and 3h of reperfusion using left lower extremity tourniquet after anesthesia application. Groups 3 (D-50) and 4 (D-100) had undergone the same procedures as in the Group 2, except for receiving 50 and 100mg.kg-1, respectively, dexmedetomidine intraperitoneally 1h before the tourniquet release. Blood samples were obtained for the analysis of tumor necrosing factor-α and interleukin-6. Pulmonary tissue samples were obtained for histological analysis. RESULTS:No significant difference regarding blood tumor necrosing factor-α and interleukin-6 values was found among the groups, whereas pulmonary tissue injury scores revealed significant difference. Histological scores obtained from the Group 2 were significantly higher from those in the Groups 1, 3 and 4 with p-values 0.001 for each comparison. Moreover, Group 1 scores were found to be significantly lower than those in the Groups 3 and 4 with p-values 0.001 and 0.011, respectively. No significant difference was observed between the Groups 3 and 4. CONCLUSION:Dexmedetomidine is effective in reduction of the experimental ischemia-reperfusion induced pulmonary tissue injury in rats, formed by extremity tourniquet application.

journal_name

Rev Bras Anestesiol

journal_title

Revista brasileira de anestesiologia

authors

Küçükebe ÖB,Özzeybek D,Abdullayev R,Ustaoğlu A,Tekmen I,Küme T

doi

10.1016/j.bjan.2016.09.004

subject

Has Abstract

pub_date

2017-01-01 00:00:00

pages

139-146

issue

2

eissn

0034-7094

issn

1806-907X

pii

S0034-7094(16)30148-9

journal_volume

67

pub_type

杂志文章

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