[Percutaneous mechanical circulatory support: options and importance].

In cases of low cardiac output and chronic cardiac failure despite conventional therapy, mechanical circulatory support may be the only option to ensure adequate organ perfusion and to save the life of the patient. In recent years, several conceptionally different methods of circulatory support have been developed for percutaneous application in interventional cardiology and intensive care. Indications range from elective use in complex cardiac interventions to long-term support as a bridge to recovery. As intra-aortic balloon pump support can no longer be considered for routine use in ischemic cardiogenic shock, micro-axial pumps for extracorporeal membrane oxygenation and extracorporeal life support systems (ECMO/ECLS) gain attractiveness due to a more convincing impact on the hemodynamics. However, an increasing level of support is paralleled by greater invasiveness and complexity of the systems. Due to a lack of larger comparative trials, the benefits and risks of adverse events must be balanced against those of conventional therapy with inotropes and largely on an individual basis. This review summarizes the options for percutaneous circulatory support with special consideration to applications in the catheter laboratory and intensive care units in internal medicine.