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  • Title: Recovery of post-arrest cardiac performance: effect of fructose-1,6-diphosphate in the isolated rabbit heart.
    Author: Merli M, Bergui G, Cattani C, Berti F, Marchetti M.
    Journal: Riv Eur Sci Med Farmacol; 1989 Apr; 11(2):175-82. PubMed ID: 2799003.
    Abstract:
    The effect of fructose-1,6-diphosphate (FDP) on the recovery of post-arrest cardiac performance was assessed in isolated rabbit heart preparations subjected to cold ischemic cardioplegic arrest (CICA). Twenty-eight hearts were perfused with Krebs-Henseleit (KHBS) solution followed by 40 minutes of CICA. After CICA normothermic reperfusion with KHBS was restarted. The experimental preparations were divided in four groups of seven hearts each: one group served as control and the other three were perfused with KHBS supplemented with FDP (500 mg/l) given before CICA, after CICA or at both study points. Left ventricular end-diastolic pressure, left ventricular systolic pressure, dP/dt and perfusion pressure were measured at different pre- and post-arrest phases. Time analysis of recovery was also performed. The results demonstrated that FDP supplied prior to and after CICA: prevents the ventricular wall rigidity induced by the ischemic arrest, improves cardiac contractile force both in the basal condition and after cardioplegia, reduces the perfusion pressure, reduces the time to recovery of cardiac contractility. Our findings in the isolated rabbit heart are consistent with published data suggesting FDP may limit the impairment of cardiac dynamics induced by ischemia and improve the recovery after cardiac arrest.
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