OBJECTIVES: The objective of this study was to describe the operative experience and 30-day outcomes of patients implanted with the HeartMate 3 Left Ventricular Assist System (LVAS) during the Conformité Européenne (CE) Mark clinical trial. METHODS: Adult patients met inclusion and exclusion criteria defining advanced-stage heart failure and included the indications of bridge to transplant and destination therapy. Operative parameters, outcomes, adverse events, physical status and quality-of-life parameters were assessed in the first 30 days after LVAS implant. RESULTS: Fifty patients were implanted with the HeartMate 3 at 10 centres in 6 countries. The 30-day survival rate was 98%. The median operative and cardiopulmonary bypass times were 200 (range: 95-585) min and 84 (range: 47-250) min, respectively. Patients required transfusion with packed red blood cells (3.6 ± 2.3 units), fresh frozen plasma (6.5 ± 5 units) and platelets (2 ± 1 units). Six patients (12%) required reoperation for postoperative bleeding and 10 patients (20%) did not require blood transfusion. The median intensive care time was 6 days (range: 1-112 days) and the total hospital stay was 28 days (range: 14-116 days). The most common adverse events were bleeding (15, 30%), arrhythmia (14, 28%) and infection (10, 20%). There were 2 (4%) strokes. CONCLUSIONS: The 30-day outcomes following implantation of the HeartMate 3 demonstrates excellent survival with low adverse event rates. The LVAD performed as intended with no haemolysis or device failure. CLINICALTRIALSGOV IDENTIFIER: NCT02170363. HeartMate 3™ CE Mark Clinical Investigation Plan (HM3 CE Mark).

German Heart Center Berlin Germany

Hannover Medical School Hannover Germany

Heart Center Leipzig Leipzig Germany

Institute for Clinical and Experimental Medicine Prague Czech Republic

National Research Cardiac Surgery Center Astana Kazakhstan

St Jude Medical Inc St Paul MN USA

The Alfred Hospital Melbourne Australia

Thoracic and Cardiovascular Surgery Clinic Bad Oeynhausen Germany

Toronto General Hospital Toronto Canada

University Heart Center Freiburg Bad Krozingen Freiburg Germany

University of Vienna Vienna Austria

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Less invasive HeartMate 3 left ventricular assist device implantation