Troponin I release after intravenous treatment with high furosemide doses plus hypertonic saline solution in decompensated heart failure trial (Tra-HSS-Fur)

Gaspare Parrinello, Pietro Di Pasquale, Daniele Torres, Mauro Cardillo, Caterina Schimmenti, Umberto Lupo, Rossella Iatrino, Rossella Petrantoni, Carla Montaina, Salvatore Giambanco, Salvatore Paterna
American Heart Journal 2012, 164 (3): 351-7

BACKGROUND: High values of cardiac troponin in acute decompensated congestive heart failure (ADHF) identify patients at higher risk and worsened prognosis. A cardiac troponin increase during therapy indicates the need for more appropriate intervention, aimed at compensating cardiac disease and effectively minimizing myocardial wall stress and subsequent cytolysis. This study evaluated the effects of an intravenous high dose of furosemide with (group A) or without small volume hypertonic saline solution (HSS) (group B) on myocardial cytolysis in patients with ADHF.

METHODS: A total of 248 consecutive patients with ADHF (148 men, mean age 74.9 ± 10.9 years) were randomly assigned to group A or B. Plasma levels of cardiac troponin-I, brain natriuretic peptide, glomerular filtration rate by Modification of Diet in Renal Disease formula, bioelectrical impedance analysis measurements, and delta pressure/delta time (dP/dt) rate were observed on admission and discharge for all patients.

RESULTS: We observed a significant reduction of cardiac troponin in both groups and a significant improvement in renal function, hydration state, pulmonary capillary wedge pressure (P < .0001), end diastolic volume (P < .01), ejection fraction (P < .01), and dP/dt (P < .004) in group A. We also observed a significant reduction in body weight (64.4 vs 75.8 kg) (P < .001), cardiac troponin I (0.02 vs 0.31 ng/mL) (P < .0001) and brain natriuretic peptide (542 vs 1,284 pg/mL) (P < .0001), and hospitalization time (6.25 vs 10.2 days) (P < .0001) in the HSS group.

CONCLUSIONS: These data demonstrate that intravenous high doses of furosemide do not increase myocardial injury and, in addition, when associated to HSS, significantly reduce cardiac troponin I release. This behavior is mirrored by the achievement of improved hemodynamic compensation at echocardiography and body hydration normalization.

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