Venoarterial extracorporeal membrane oxygenation (VA-ECMO) has been used for refractory cardiogenic shock; however, it is associated with increased left ventricular afterload. Outcomes associated with the combination of a percutaneous left ventricular assist device (Impella) and VA-ECMO remains largely unknown. We retrospectively reviewed patients treated for refractory cardiogenic shock with VA-ECMO (2014-2016). The primary outcome was all-cause mortality within 30 days of VA-ECMO implantation. Secondary outcomes included duration of support, stroke, major bleeding, hemolysis, inotropic score, and cardiac recovery. Outcomes were compared between the VA-ECMO cohort and VA-ECMO + Impella (ECPELLA cohort). Sixty-six patients were identified: 30 ECPELLA and 36 VA-ECMO. Fifty-eight percentage of VA-ECMO patients (n = 21) had surgical venting, as compared with 100% of the ECPELLA cohort (n = 30) which had Impella (±surgical vent). Both cohorts demonstrated relatively similar baseline characteristics except for higher incidence of ST-elevation myocardial infarction (STEMI) and percutaneous coronary intervention (PCI) in the ECPELLA cohort. Thirty-day all-cause mortality was significantly lower in the ECPELLA cohort (57% vs. 78%; hazard ratio [HR] 0.51 [0.28-0.94], log rank p = 0.02), and this difference remained intact after correcting for STEMI and PCI. No difference between secondary outcomes was observed, except for the inotrope score which was greater in VA-ECMO group by day 2 (11 vs. 0; p = 0.001). In the largest US-based retrospective study, the addition of Impella to VA-ECMO for patients with refractory cardiogenic shock was associated with lower all-cause 30 day mortality, lower inotrope use, and comparable safety profiles as compared with VA-ECMO alone.
In light of the COVID-19 pandemic, pharmacy education has shifted from in-person teaching and assessments to the virtual environment. Many education programs had previously adopted objective structured clinical examinations (OSCEs) to assess communication abilities in-person with standardized patients (SPs). However, comparative student outcome data between virtual and in-person methods as well as guidance on how to conduct communication-based OSCEs in the virtual environment is lacking. The University of Colorado Skaggs School of Pharmacy and Pharmaceutical Sciences (SSPPS) describes its methods of conducting two types of communication-based OSCEs (patient counseling and gathering a medical history). Student performance data from the two virtual OSCEs in 2020 was compared to results from two 2019 in-person OSCEs using Mann Whitney U Tests. The 2020 cohort scored significantly higher than the 2019 cohort in all variables (i.e., using effective verbal and non-verbal communication, using patient friendly education, organizing the encounter, demonstrating empathy, establishing trust, professionalism) and in overall score. However, the effect size for these findings indicate the differences between performances are generally small and more likely due to changes in grading patterns due to the pandemic.
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