PMID- 33559358 OWN - NLM STAT- MEDLINE DCOM- 20210701 LR - 20231111 IS - 2055-5822 (Electronic) IS - 2055-5822 (Linking) VI - 8 IP - 2 DP - 2021 Apr TI - Cardio-microcurrent device for chronic heart failure: first-in-human clinical study. PG - 962-970 LID - 10.1002/ehf2.13242 [doi] AB - AIMS: Most devices for treating ambulatory Class II and III heart failure are linked to electrical pulses. However, a steady electric potential gradient is also necessary for appropriate myocardial performance and may be disturbed by structural heart diseases. We investigated whether chronic application of electrical microcurrent to the heart is feasible and safe and improves cardiac performance. The results of this study should provide guidance for the design of a two-arm, randomized, controlled Phase II trial. METHODS AND RESULTS: This single-arm, non-randomized pilot study involved 10 patients (9 men; mean age, 62 +/- 12 years) at two sites with 6 month follow-up. All patients had New York Heart Association (NYHA) Class III heart failure and non-ischaemic dilated cardiomyopathy, with left ventricular ejection fraction (LVEF) <35%. A device was surgically placed to deliver a constant microcurrent to the heart. The following tests were performed at baseline, at hospital discharge, and at six time points during follow-up: determination of LVEF and left ventricular end-diastolic/end-systolic diameter by echocardiography; the 6 min walk test; and assessment of NYHA classification and quality of life (36-Item Short-Form Health Survey questionnaire). Microcurrent application was feasible and safe; no device-related or treatment-related adverse events occurred. During follow-up, rapid and significant signal of efficacy (P < 0.005) was present with improvements in LVEF, left ventricular end-diastolic diameter, left ventricular end-systolic diameter, and distance walked. For eight patients, NYHA classification improved from Class III to Class I (for seven, as early as 14 days post-operatively); for one, to Class II; and for one, to Class II/III. 36-Item Short-Form Health Survey questionnaire scores also improved highly significantly. CONCLUSIONS: Chronic application of microcurrent to the heart is feasible and safe and leads to a rapid and lasting improvement in heart function and a near normalization of heart size within days. The NYHA classification and quality of life improve just as rapidly. CI - (c) 2021 The Authors. ESC Heart Failure published by John Wiley & Sons Ltd on behalf of European Society of Cardiology. FAU - Kosevic, Dragana AU - Kosevic D AD - Cardiovascular Institute Dedinje Belgrade, Belgrade, Serbia. FAU - Wiedemann, Dominik AU - Wiedemann D AUID- ORCID: 0000-0002-2055-8293 AD - Medical University Vienna, Vienna, Austria. FAU - Vukovic, Petar AU - Vukovic P AUID- ORCID: 0000-0002-9202-213X AD - Cardiovascular Institute Dedinje Belgrade, Belgrade, Serbia. FAU - Ristic, Velibor AU - Ristic V AD - Cardiovascular Institute Dedinje Belgrade, Belgrade, Serbia. FAU - Riebandt, Julia AU - Riebandt J AUID- ORCID: 0000-0002-8601-9989 AD - Medical University Vienna, Vienna, Austria. FAU - Radak, Una AU - Radak U AD - Cardiovascular Institute Dedinje Belgrade, Belgrade, Serbia. FAU - Brandes, Kersten AU - Brandes K AD - Berlin Heals, Berlin, Germany. FAU - Goettel, Peter AU - Goettel P AUID- ORCID: 0000-0003-3553-390X AD - Berlin Heals, Berlin, Germany. FAU - Duengen, Hans-Dirk AU - Duengen HD AD - Charite - Universitatsmedizin Berlin, Berlin, Germany. FAU - Tahirovic, Elvis AU - Tahirovic E AD - SciRent Clinical Research and Science, Belgrade, Serbia. FAU - Kottmann, Tatjana AU - Kottmann T AD - Clinical Research Organization Kottmann, Hamm, Germany. FAU - Voss, Hans Werner AU - Voss HW AD - Clinical Research Organization Kottmann, Hamm, Germany. FAU - Zdravkovic, Marija AU - Zdravkovic M AUID- ORCID: 0000-0003-4059-0263 AD - University Hospital Medical Center Bezanijska Kosa Belgrade, Belgrade, Serbia. FAU - Putnik, Svetozar AU - Putnik S AD - School of Medicine, University of Belgrade, Belgrade, Serbia. FAU - Schmitto, Jan D AU - Schmitto JD AD - Hannover Medical School, Hannover, Germany. FAU - Mueller, Johannes AU - Mueller J AD - Berlin Heals, Berlin, Germany. FAU - Rame, Jesus Eduardo AU - Rame JE AD - Advanced Cardiac and Pulmonary Vascular Disease Programs, Jefferson Heart Institute, Philadelphia, PA, USA. FAU - Peric, Miodrag AU - Peric M AD - Cardiovascular Institute Dedinje Belgrade, Belgrade, Serbia. LA - eng PT - Journal Article PT - Randomized Controlled Trial PT - Research Support, Non-U.S. Gov't DEP - 20210209 PL - England TA - ESC Heart Fail JT - ESC heart failure JID - 101669191 SB - IM MH - Aged MH - *Heart Failure/therapy MH - Humans MH - Male MH - Middle Aged MH - Pilot Projects MH - *Quality of Life MH - Stroke Volume MH - Treatment Outcome MH - Ventricular Function, Left PMC - PMC8006737 OTO - NOTNLM OT - Electric potential gradient OT - Electrical microcurrent OT - Electro-osmosis OT - Heart failure COIS- The authors P. Goettel, K. Brandes and J. Mueller are employees of Berlin Heals, the company that developed the device. EDAT- 2021/02/10 06:00 MHDA- 2021/07/02 06:00 PMCR- 2021/02/09 CRDT- 2021/02/09 06:41 PHST- 2021/01/05 00:00 [revised] PHST- 2020/11/06 00:00 [received] PHST- 2021/01/19 00:00 [accepted] PHST- 2021/02/10 06:00 [pubmed] PHST- 2021/07/02 06:00 [medline] PHST- 2021/02/09 06:41 [entrez] PHST- 2021/02/09 00:00 [pmc-release] AID - EHF213242 [pii] AID - 10.1002/ehf2.13242 [doi] PST - ppublish SO - ESC Heart Fail. 2021 Apr;8(2):962-970. doi: 10.1002/ehf2.13242. Epub 2021 Feb 9.