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European Journal of Heart Failure 2007 9(9):897-900; doi:10.1016/j.ejheart.2007.05.003
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© 2007 European Society of Cardiology

Levosimendan allows detection of contractile reserve in patients with chronic ischaemic left ventricular dysfunction and non-diagnostic dobutamine echocardiography

Cinzia Cianfroccaa,b,*, Francesco Pellicciaa,b, Antonio Auritia, Vincenzo Guidoa, Vincenzo Pasceria, Xue Lia, Giuseppe Richichia, Giuseppe Mercurob and Massimo Santinia

a Department of Cardiology, San Filippo Neri Hospital Rome, Italy
b Department of Cardiovascular and Neurological Diseases, University of Cagliari Cagliari, Italy

* Corresponding author. Viale Liegi 49, 00198 Rome, Italy. Tel.: +39 347 3437648; fax: +39 06 330 62516. E-mail address: c.cianfrocca{at}mclink.it


  Abstract

Background: Dobutamine echocardiography is commonly used to detect contractile reserve in ischaemic left ventricular (LV) systolic dysfunction, although its sensitivity and specificity are not optimal. We tested the hypothesis that echocardiography with levosimendan could identify contractile reserve in patients with a non-diagnostic dobutamine test.

Methods: Twenty-two patients with LV ejection fraction <40% and non-diagnostic dobutamine echocardiography underwent levosimendan challenge (24 µg/kg in 10 min) prior to coronary angioplasty or surgery.

Results: Contractile reserve was identified by levosimendan in 10 patients (Gr. A) but was not seen in 12 patients (Gr. B). With levosimendan, LV ejection fraction increased and wall motion score index decreased significantly in Gr. A, but only slightly in Gr. B. Similarly, mean mitral annular plane excursion and peak systolic mitral annular motion velocity increased significantly in Gr. A only. Six months after revascularisation, contractile reserve was seen in 8/10 Gr. A patients but in only 2/12 Gr. B patients (80= vs 17=, p=0.011). LV ejection fraction, wall motion score index, mean mitral annular plane excursion and peak systolic mitral annular motion velocity were significantly higher in Gr. A than in Gr. B.

Conclusion: Levosimendan echocardiography can identify contractile reserve in a sizeable proportion of patients with chronic ischaemic LV dysfunction and a non-diagnostic dobutamine test.

Key Words: Contractile reserve • Echocardiography • Levosimendan • Revascularisation

Received March 5, 2007; Accepted May 3, 2007


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