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When to Achieve Complete Revascularization in Infarct-Related Cardiogenic Shock.

ABSTRACT: Acute myocardial infarction (AMI) complicated by cardiogenic shock (CS) is a life-threatening condition frequently encountered in patients with multivessel coronary artery disease (CAD). Despite prompt revascularization, in particular, percutaneous coronary intervention (PCI), and therapeutic and technological advances, the mortality rate for patients with CS related to AMI remains unacceptably high. Differently form a hemodynamically stable setting, a culprit lesion-only (CLO) revascularization strategy is currently suggested for AMI-CS patients, based on the results of recent randomized evidence burdened by several limitations and conflicting results from non-randomized studies. Furthermore, mechanical circulatory support (MCS) devices have emerged as a key therapeutic option in CS, especially in the case of their early implantation without delaying revascularization and before irreversible organ damage has occurred. We provide an in-depth review of the current evidence on optimal revascularization strategies of multivessel CAD in infarct-related CS, assessing the role of different types of MCS devices and highlighting the importance of shock teams and medical care system networks to effectively impact on clinical outcomes.

SUBMITTER: Masiero G

PROVIDER: S-EPMC9180947 | biostudies-literature | 2022 May

REPOSITORIES: biostudies-literature

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When to Achieve Complete Revascularization in Infarct-Related Cardiogenic Shock.

Masiero Giulia G Cardaioli Francesco F Rodinò Giulio G Tarantini Giuseppe G

Journal of clinical medicine 20220531 11

Acute myocardial infarction (AMI) complicated by cardiogenic shock (CS) is a life-threatening condition frequently encountered in patients with multivessel coronary artery disease (CAD). Despite prompt revascularization, in particular, percutaneous coronary intervention (PCI), and therapeutic and technological advances, the mortality rate for patients with CS related to AMI remains unacceptably high. Differently form a hemodynamically stable setting, a culprit lesion-only (CLO) revascularization ...[more]

PMID: 35683500

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Project description:Background: In-hospital mortality in acute myocardial infarction-related cardiogenic shock (AMI-CS) remains high. The only adequately powered randomized trial showed no benefit of routine use of the intra-aortic balloon pump in AMI-CS. We compared individually predicted mortality using CardShock- and IABP-Shock II-scores in AMI-CS patients treated with an Impella microaxial pump, who met the IABP-Shock II-trials inclusion/exclusion criteria, to observed mortality on circulatory support in order to determine whether standardized use of an Impella microaxial flow-pump in AMI-CS is associated with lower than predicted mortality rates and whether timing of implantation or selecting patients based on predicted risk is meaningful. Methods and Results: We analyzed data from 166 consecutive Impella-treated AMI-CS patients meeting the inclusion/exclusion criteria of the IABP-Shock II-trial (age 64 ± 11 years). Thirty-nine percentage of 64 patients had been resuscitated before Impella implantation. Overall 30-day mortality was 42%. Mortality was higher in resuscitated patients (50 vs. 36%, p = 0.0452) and when Impella was implanted post-PCI (Impella-pre-PCI: 28%, Impella-post-PCI: 51%, p = 0.0039). While in both score systems there was no significant difference between predicted and observed overall 30-day mortality, predicted mortality was significantly higher than observed mortality on Impella support only for individuals with highest predicted risk based on CardShock score (predicted 77 vs. observed 51%, p = 0.025). Conclusions: Our retrospective analysis suggests that the use of the Impella microaxial pump may be effective in selected cases of high risk patients with AMI-CS. Condensed abstract: Mortality is high in acute myocardial infarction-related cardiogenic shock despite rapid revascularization. Haemodynamic support with an intraortic balloon pump does not reduce mortality. In this retrospective registry including 166 consecutive IABP-Shock II-eligible cardiogenic shock patients in four dedicated shock centers, observed mortality on circulatory support with an Impella was significantly lower than predicted in patients with highest mortality risk. Implantation prior to PCI in acute myocardial infarction-related cardiogenic shock seemed to be associated with lower mortality than implantation post PCI.

Project description:BackgroundIn DanGer Shock (the Danish-German Cardiogenic Shock trial), use of a microaxial flow pump (mAFP) in patients with ST-segment-elevation myocardial infarction-related cardiogenic shock led to lower all-cause mortality but higher rates of renal replacement therapy (RRT). In this prespecified analysis, rates and predictors of acute kidney injury (AKI) and RRT were assessed.MethodsIn this international, randomized, open-label, multicenter trial, 355 adult patients with ST-segment-elevation myocardial infarction-related cardiogenic shock were randomized to mAFP (n=179) or standard care alone (n=176). AKI was defined according to RIFLE criteria (Risk, Injury, Failure, Loss, and End-stage kidney disease) and assessed using logistic regression models. Use of RRT was assessed accounting for the competing risk of death using Fine-Gray subdistribution hazard models.ResultsAKI (RIFLE ≥1) was recorded in 110 patients (61%) in the mAFP group and 79 patients (45%) in the control group (P<0.01); RRT was used in 75 (42%) and 47 (27%) patients, respectively (P<0.01). About two-thirds of the RRTs were initiated within the first 24 hours from admission (n=48 [64%] in the mAFP group and n=31 [66%] in the control group). Occurrence of AKI and RRT were associated with higher 180-day mortality in both study arms. At 180 days, all patients alive were free of RRT. mAFP use was associated with higher rates of RRT, even when accounting for competing risk of death (subdistribution hazard, 1.67 [1.18-2.35]). This association was largely consistent among prespecified subgroups. Allocation to mAFP was associated with lower 180-day mortality irrespective of AKI or RRT (Pinteraction=0.84). Relevant predictors of AKI in both groups comprised reduced left ventricular ejection fraction, baseline kidney function, shock severity, bleeding events, and positive fluid balance. Predictors of AKI specific to mAFP were suction events, higher pump speed, and longer duration of support.ConclusionsShock severity, allocation to mAFP, and device-related complications were associated with an increased risk of AKI. AKI was generally associated with higher mortality, but the allocation to mAFP consistently led to lower mortality rates at 180 days irrespective of the occurrence of AKI with or without RRT initiation.RegistrationURL: https://www.clinicaltrials.gov; Unique identifier: NCT01633502.

Project description:Background Data are limited regarding long-term outcomes in patients with ST-segment-elevation myocardial infarction and multivessel disease presenting with cardiogenic shock according to revascularization strategy. We sought to compare the 3-year clinical outcomes of patients with ST-segment-elevation myocardial infarction multivessel disease with cardiogenic shock and patients with multivessel percutaneous coronary intervention (PCI) and infarct-related artery (IRA)-only PCI. Methods and Results Of 13 104 patients from the nationwide, multicenter, prospective KAMIR-NIH (Korea Acute Myocardial Infarction Registry--National Institutes of Health) registry, we selected 659 patients with ST-segment-elevation myocardial infarction who had concomitant non-IRA stenosis and presented with cardiogenic shock. The primary outcome was all-cause death. Multivessel PCI was performed in 260 patients and IRA-only PCI in 399 patients. At 3 years, patients in the multivessel PCI group had a lower risk of all-cause death (adjusted hazard ratio, 0.65; 95% CI, 0.45-0.94 [P=0.024]), all-cause death or MI (adjusted hazard ratio, 0.59; 95% CI, 0.41-0.84 [P=0.004]), and non-IRA repeat revascularization (adjusted hazard ratio, 0.23; 95% CI, 0.10-0.50 [P<0.001]) than those in the IRA-only PCI group. The results were consistent after confounder adjustment by propensity score matching and inverse probability weighting analysis. Landmark analysis at 1 year demonstrated that the multivessel PCI group had a lower risk of recurrent MI and non-IRA repeat revascularization beyond 1 year (log-rank P=0.030 and P=0.017, respectively) than the IRA-only PCI group. Conclusions In patients with ST-segment-elevation myocardial infarction and cardiogenic shock, multivessel PCI was associated with a lower risk of all-cause death than IRA-only PCI at 3 years, suggesting potential benefit of non-IRA revascularization during the index hospitalization to improve long-term clinical outcomes.

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When to Achieve Complete Revascularization in Infarct-Related Cardiogenic Shock.

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When to Achieve Complete Revascularization in Infarct-Related Cardiogenic Shock.

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