In atrial and ventricular tachyarrhythmias, reduced time for ventricular filling and loss of atrial contribution lead to a significant reduction in cardiac output, resulting in cardiogenic shock. This may also occur during catheter ablation in 11% of overall procedures and is associated with increased mortality. Managing cardiogenic shock and (supra) ventricular arrhythmias is particularly challenging. Inotropic support may exacerbate tachyarrhythmias or accelerate heart rate; antiarrhythmic drugs often come with negative inotropic effects, and electrical reconversions may risk worsening circulatory failure or even cardiac arrest. The drop in native cardiac output during an arrhythmic storm can be partly covered by the insertion of percutaneous mechanical circulatory support (MCS) devices guaranteeing end-organ perfusion. This provides physicians a time window of stability to investigate the underlying cause of arrhythmia and allow proper therapeutic interventions (e.g., percutaneous coronary intervention and catheter ablation). Temporary MCS can be used in the case of overt hemodynamic decompensation or as a "preemptive strategy" to avoid circulatory instability during interventional cardiology procedures in high-risk patients. Despite the increasing use of MCS in cardiogenic shock and during catheter ablation procedures, the recommendation level is still low, considering the lack of large observational studies and randomized clinical trials. Therefore, the evidence on the timing and the kinds of MCS devices has also scarcely been investigated. In the current review, we discuss the available evidence in the literature and gaps in knowledge on the use of MCS devices in the setting of ventricular arrhythmias and arrhythmic storms, including a specific focus on pathophysiology and related therapies.

• Klíčová slova
• arrhythmias, extracorporeal membrane oxygenation (ECMO), hemodynamic, mechanical circulatory support (MCS), review,
• Publikační typ
• časopisecké články MeSH
• přehledy MeSH

These guidelines of the European Resuscitation Council (ERC) Cardiac Arrest under Special Circumstances are based on the 2020 International Consensus on Cardiopulmonary Resuscitation Science with Treatment Recommendations. This section provides guidelines on the modifications required for basic and advanced life support for the prevention and treatment of cardiac arrest under special circumstances; in particular, specific causes (hypoxia, trauma, anaphylaxis, sepsis, hypo-/hyperkalaemia and other electrolyte disorders, hypothermia, avalanche, hyperthermia and malignant hyperthermia, pulmonary embolism, coronary thrombosis, cardiac tamponade, tension pneumothorax, toxic agents), specific settings (operating room, cardiac surgery, cardiac catheterization laboratory, dialysis unit, dental clinics, transportation [in-flight, cruise ships], sport, drowning, mass casualty incidents), and specific patient groups (asthma and chronic obstructive pulmonary disease, neurological disease, morbid obesity, pregnancy).

UNLABELLED: Diese Leitlinien des European Resuscitation Council (ERC) für den Kreislaufstillstand unter besonderen Umständen basieren auf dem 2020 International Consensus on Cardiopulmonary Resuscitation Science with Treatment Recommendations. Dieses Kapitel enthält Leitlinien zu den Modifikationen der lebensrettenden Basismaßnahmen und erweiterten lebensrettenden Maßnahmen zur Vorbeugung und Behandlung von Kreislaufstillständen unter besonderen Umständen; insbesondere spezielle Ursachen (Hypoxie, Trauma, Anaphylaxie, Sepsis, Hypo‑/Hyperkaliämie und andere Elektrolytstörungen, Hypothermie, Lawinengeschehen, Hyperthermie und maligne Hyperthermie, Lungenembolie, Koronarthrombose, Herzbeuteltamponade, Spannungspneumothorax, Giftstoffe), spezielle Umstände (Operationssaal, Herzchirurgie, Herzkatheterlabor, Dialyseeinheit, Zahnkliniken, Transport während des Flugs, Kreuzfahrtschiffe, Sport, Ertrinken, Großschadensereignisse) und spezielle Patientengruppen (Asthma und chronisch obstruktive Lungenerkrankung, neurologische Erkrankungen, krankhafte Adipositas, Schwangerschaft). ZUSATZMATERIAL ONLINE: Die Online-Version dieses Beitrags (10.1007/s10049-021-00891-z) enthält das originale Zusatzmaterial aus dem Artikel in Resuscitation. Beitrag und Zusatzmaterial stehen Ihnen auf www.springermedizin.de zur Verfügung. Bitte geben Sie dort den Beitragstitel in die Suche ein, das Zusatzmaterial finden Sie beim Beitrag unter „Ergänzende Inhalte“.

• Klíčová slova
• Modifications of life support, Reversible causes, Special causes, Special patient groups, Special settings,
• Publikační typ
• anglický abstrakt MeSH
• časopisecké články MeSH
• přehledy MeSH