Clinical use and impact of mechanical circulatory support for myocardial infarction-related cardiogenic shock in the Netherlands: a registry-based propensity-matched analysis

Bogerd, M.; Griffioen, A.M.; Bunge, J.J.H.; Peters, E.J.; Berg, S. ten; Timmermans, M.J.C.; Kraaijeveld, A.O.; Lipsic, E.; Otterspoor, L.C.; Bleeker, G.; Montero Cabezas, J.M.; Sjauw, K.D.; Meuwissen, M.; Dubois, E.A.; Geuns, R.J.M. van; Henriques, J.P.S.

doi:doi:10.1136/openhrt-2024-002846

Background: Despite limited beneficial evidence, mechanical circulatory support (MCS) is commonly used in patients with acute myocardial infarction-related cardiogenic shock (AMI-CS). In this Dutch registry, we investigated MCS usage, associated patient characteristics and clinical outcomes. Methods: This real-world, multicentre registry included CS patients undergoing percutaneous coronary intervention between 2017 and 2021 in 14 Dutch hospitals. The impact on clinical outcomes was analysed after 1:1 average propensity-score (aPS) matching. Results: This AMI-CS registry included 2217 patients with a mean age of 66.4 (+/- 12.3) years and predominantly male (72.8%, n=1613). MCS was deployed in 516 patients (23.3%), of which the intra-aortic balloon pump was used most frequently (n=253, 49.0%). Impella was used in 94 patients (18.2%), extracorporeal membrane oxygenation in 68 patients (13.2%) and 95 patients (18.4%) received multiple devices. Patients receiving MCS were younger (64...Show moreBackground: Despite limited beneficial evidence, mechanical circulatory support (MCS) is commonly used in patients with acute myocardial infarction-related cardiogenic shock (AMI-CS). In this Dutch registry, we investigated MCS usage, associated patient characteristics and clinical outcomes. Methods: This real-world, multicentre registry included CS patients undergoing percutaneous coronary intervention between 2017 and 2021 in 14 Dutch hospitals. The impact on clinical outcomes was analysed after 1:1 average propensity-score (aPS) matching. Results: This AMI-CS registry included 2217 patients with a mean age of 66.4 (+/- 12.3) years and predominantly male (72.8%, n=1613). MCS was deployed in 516 patients (23.3%), of which the intra-aortic balloon pump was used most frequently (n=253, 49.0%). Impella was used in 94 patients (18.2%), extracorporeal membrane oxygenation in 68 patients (13.2%) and 95 patients (18.4%) received multiple devices. Patients receiving MCS were younger (64.2 vs 67.0, p<0.01), presented with lower mean arterial pressures (74.7 vs 78.4 mm Hg, p<0.01), higher heart rates (88.3 vs 81.7 beats per minute, p<0.01) and higher initial lactate levels (6.4 vs 5.4 mmol/L, p<0.01). The percentage of resuscitated patients was comparable among MCS and non-MCS patients (38.6% vs 42.2%, p=0.17). The 30-day mortality rate was higher in MCS patients (55.0% vs 34.7%, p<0.01). After aPS-matching (n=970), 30-day mortality remained higher for MCS patients (53.8% vs 44.7%, p<0.01), with an associated OR of 1.44 (95% CI 1.12 to 1.85, p<0.01). Conclusions: Despite limited evidence, MCS was used in a fourth of all AMI-CS patients. MCS usage was associated with an increased 30-day mortality in this real-world setting, even after propensity-matching.Show less

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Clinical use and impact of mechanical circulatory support for myocardial infarction-related cardiogenic shock in the Netherlands: a registry-based propensity-matched analysis