ABSTRACT
BACKGROUND AND OBJECTIVES: The relevance of the use of intra-aortic balloon pump (IABP) in cardiogenic shock (CS) has been discussed over the past years. The aim of this study is to describe a single-centre 10-year experience with IABP and analyse the risk factors for 30-day mortality. METHODS: The data for this single-centre, observational, retrospective study were drawn from records dated from January 2012 to May 2022 pertaining to patients presenting with CS, treated with IABP and hospitalised at the Department of Acute Cardiology, Institute for Clinical and Experimental Medicine, Prague. RESULTS: Among the patients included in the study, 87% patients presented with newly developed heart failure. The leading cause of CS was acute myocardial infarction accounting for 86% of cases. Hospital mortality was recorded at 39% and the 30-day mortality reached 43%. Upon multi-variable analysis, only the vasoactive inotropic score on day 5 emerged as a statistically significant predictor for 30-day mortality (p=0.0055). Cox regression analysis revealed that the presence of mechanical complications was the only variable identified as yielding a statistically significant impact on the 30-day survival (Log-rank p=0.014, HR 2.19, 95% CI: 1.15â4.15). There was no statistically significant difference in the 30-day mortality across the SCAI classes. CONCLUSION: The main cause of CS was a newly developed acute heart failure secondary to acute myocardial infarction. Despite the implementation of mechanical circulatory support, both in-hospital and 30-day mortality rates remained high. Increased vasoactive inotropic score and presence of mechanical complications were identified as significant predictors the 30-day survival (Tab. 6, Fig. 1, Ref. 36). Text in PDF www.elis.sk Keywords: cardiogenic shock, IABP, risk factors, mortality, Czech Republic, AMICS.
ABSTRACT
BACKGROUND: Clinical assessment and laboratory markers provide valuable information on tissue perfusion and enhance the optimalisation of management in the treatment of patients on extracorporeal membrane oxygenation (ECMO). The PCO2 gap is a reliable marker of cardiac output (CO) and perfusion. The aim of this study was to evaluate the PCO2 gap as a marker of tissue hypoperfusion and to compare it to lactate and SvO2. METHODS: A single-center retrospective study on 131 adult cardiac patients who underwent ECMO implantation in the period between 2010 and 2021. Baseline characteristics, laboratory markers and mortality were analyzed. RESULTS: There was a statistically significant difference in the plasmatic levels of lactate, SvO2 and PCO2 gap between patients that survived and those who died post ECMO implantation (3.6±3.29 vs 7.15±7.38 mmol/l, p<0.001; 69.13±9 vs 67.38±10%, p<0.001; 7.65±2.93 vs 8.34±3.71, p<0.001 respectively). There was a statistically significant difference in PCO2 gap in the first 5 arterial blood gas (ABG) samples post ECMO implantation between patients that survived and those who died (9.08±4.79 vs 10.37±5.35, p<0.003). For SvO2, this difference was not statistically significant (69.82±11.91 vs 68.51±11.72, p<0.104). There was a statistically significant but low negative correlation between SvO2 and PCO2 gap post ECMO implantation (r = â0.354, p<0.001). CONCLUSION: The PCO2 gap is a valuable biomarker for monitoring tissue perfusion in patients on ECMO. It is associated with increased mortality and should be an integral part of clinical evaluation. (Tab. 1, Fig. 5, Ref. 26). Text in PDF www.elis.sk Keywords: PCO2 gap, VA-ECMO, lactate.
Subject(s)
Extracorporeal Membrane Oxygenation , Lactic Acid , Adult , Humans , Retrospective Studies , Biomarkers , PerfusionABSTRACT
BACKGROUND: Mechanical assist device indications have changed in recent years. Reduced incidence of complications, better survival, and the third generation of mechanical support devices contributed to this change. In this single-center study, we focused on two time periods that are characterized by the use of different types of mechanical support devices, different patient characteristics, and change in the indications. METHODS: The data were processed from the European Registry for Patients with Mechanical Circulatory Support (EUROMACS). We retrospectively defined two time intervals to reflect changes in ventricular assist device technology (period 1: 2007-2015; period 2: 2016-20222). A total of 181 patients underwent left ventricular assist device implantation. Device utilization was the following: HeartMate II = 52 (76.4%) and HeartWare = 16 (23.6%) in period 1 and HeartMate II = 2 (1.8%), HeartMate 3 = 70 (61:9%), HeartWare = 29 (25.7%), SynCardia TAH = 10 (8.8%), and BerlinHeart EXCOR = 2 (1.8%) in period 2. The outcomes of the time intervals were analyzed and evaluated. RESULTS: Survival was significantly higher during the second time period. Multivariate analysis revealed that age and bypass pump time are independent predictors of mortality. Idiopathic cardiomyopathy, bypass time, and the Interagency Registry for Mechanically Assisted Circulatory Support (INTERMACS) score are independent predictors of adverse events. Furthermore, the first period was noted to be at an increased risk of the following adverse events: pump thrombosis, gastrointestinal bleeding, and bleeding events. CONCLUSION: Despite the higher risk profile of the patients and persistent challenges, during the second period, there was a significant decrease in mortality and morbidity. The use of the HeartMate 3 device may have contributed to this result.