TITLE

Na[sup +]/H[sup +] exchange inhibitor cariporide: effects on respiratory dysfunction after cardiopulmonary bypass

AUTHOR(S)
Eichler, Wolfgang; Bechtel, Matthias J. F.; Klaus, Stephan; Heringlake, Matthias; Hernandez, Mario; Toeber, Kai; Klotz, Karl-Friedrich; Bartels, Claus
PUB. DATE
January 2004
SOURCE
Perfusion;Jan2004, Vol. 19 Issue 1, p33
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The purpose of the present study was to evaluate the potential of the Na[sup +]/H[sup +] exchange inhibitor cariporide to protect the lung from injury after cardiopulmonary bypass (CPB). In a randomized placebo-controlled study, 16 pigs were subjected to CPB for 75 min. Administration of vehicle or cariporide (bolus 180 mg, 40 mg/hour) began 30 min pre-CPB and was continued throughout the protocol. The alveolo-arterial O[sub 2]-gradient (AaDO[sub 2]), the pulmonary shunt (Qs/Qt), the compliance (Cpl), haemodynamic variables and glycerol and water content in lung tissue were measured 10 min before and up to 180 min post-CPB. All animals in the control versus 75% in the cariporide group survived the experiment. At 5 and 60 min post-CPB, the mean AaDO[sub 2] and at 5, 60 and 180 min post-CPB, the mean pulmonary vascular resistance index were higher in the cariporide group (p < 0.05), respectively. More lung water accumulation was found in the cariporide group (p < 0.05). Mean Cpl decreased; the Qs/Qt and glycerol in lung tissue increased without significant intergroup difference. In this model, the inhibitor of the Na[sup +]/H[sup +] antiporter showed no protective effect on lung injury after CPB and might even have harmful effects on pulmonary vascular tone and function.
ACCESSION #
12408542

 

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