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We report the case of a 79-year-old man with acute myocardial infarction caused by left main trunk lesion, who experienced cardiogenic shock during percutaneous coronary intervention (PCI). To reverse the cardiogenic shock, we initiated veno-arterial extra corporeal membrane oxygenation (VA-ECMO) without an intra-aortic balloon pump (IABP) due to the severe tortuosity of the left external iliac artery. Although PCI was successful, arterial pressure monitoring revealed that the pulse pressure was too low to recover from the cardiogenic shock of decreased cardiac contraction function (the left ventricular ejection fraction was 30%). Thus, we decided to use IABP from the brachial artery to improve the hemodynamics. Immediately after the deployment of a 6-Fr IABP system (Takumi) from the left brachial artery, the pulse pressure was restored and finally VA-ECMO was withdrawn from the patient without complications. Although using IABP in combination with VA-ECMO is a reasonable strategy for cardiogenic shock, the effectiveness of this combination remains controversial. In this case, IABP added to VA-ECMO clearly achieved an improvement of pulse pressure and vital signs. Based on this result, monitoring of the pulse waveform is an effective tool to determine whether the concomitant use of IABP with VA-ECMO is indicated. Moreover, when it is difficult to insert IABP from the femoral arteries, the use of a 6-Fr IABP system (Takumi) approaching from the brachial artery should be considered.

international heart journal

Additional Use of a 6-Fr Intra-Aortic Balloon Pump on Extracorporeal Membrane Oxygenation Was Effective in a Patient with Cardiogenic Shock with Low Pulse Pressure