Material and methods: The study included 62 AHF patients: Group I - those receiving only standard pharmacological therapy; and Group II - those in whom standard pharmacological therapy was ineffective after 12 hours, and who were also administered ECSEMS sessions for the next 7 days. The examination included multi-frequency bio-impedance measurement and dispersion mapping.Aim: To study the effectiveness of the external cardiosynchronous electromyostimulation (ECSEMS) in patients with different variants of acute heart failure (AHF).Results: Clinical symptoms were less severe in Group I. In 64% of the Group II patients, the combination treatment was associated with a positive dynamics of the water balance parameters. The 7-day ECSEMS, as a part of the complex management of AHF patients, significantly reduced the one-month lethality, although did not change the one-year survival.Conclusion: The ECSEMS method could be used in order to increase the effectiveness of the conservative treatment of AHF patients.