scholarly journals COVID-19 pandemic, mechanical reperfusion and 30-day mortality in ST elevation myocardial infarction

Heart ◽  
2021 ◽  
pp. heartjnl-2021-319750
Author(s):  
Giuseppe De Luca ◽  
Magdy Algowhary ◽  
Berat Uguz ◽  
Dinaldo C Oliveira ◽  
Vladimir Ganyukov ◽  
...  

ObjectiveThe initial data of the International Study on Acute Coronary Syndromes - ST Elevation Myocardial Infarction COVID-19 showed in Europe a remarkable reduction in primary percutaneous coronary intervention procedures and higher in-hospital mortality during the initial phase of the pandemic as compared with the prepandemic period. The aim of the current study was to provide the final results of the registry, subsequently extended outside Europe with a larger inclusion period (up to June 2020) and longer follow-up (up to 30 days).MethodsThis is a retrospective multicentre registry in 109 high-volume primary percutaneous coronary intervention (PPCI) centres from Europe, Latin America, South-East Asia and North Africa, enrolling 16 674 patients with ST segment elevation myocardial infarction (STEMI) undergoing PPPCI in March/June 2019 and 2020. The main study outcomes were the incidence of PPCI, delayed treatment (ischaemia time >12 hours and door-to-balloon >30 min), in-hospital and 30-day mortality.ResultsIn 2020, during the pandemic, there was a significant reduction in PPCI as compared with 2019 (incidence rate ratio 0.843, 95% CI 0.825 to 0.861, p<0.0001). This reduction was significantly associated with age, being higher in older adults (>75 years) (p=0.015), and was not related to the peak of cases or deaths due to COVID-19. The heterogeneity among centres was high (p<0.001). Furthermore, the pandemic was associated with a significant increase in door-to-balloon time (40 (25–70) min vs 40 (25–64) min, p=0.01) and total ischaemia time (225 (135–410) min vs 196 (120–355) min, p<0.001), which may have contributed to the higher in-hospital (6.5% vs 5.3%, p<0.001) and 30-day (8% vs 6.5%, p=0.001) mortality observed during the pandemic.ConclusionPercutaneous revascularisation for STEMI was significantly affected by the COVID-19 pandemic, with a 16% reduction in PPCI procedures, especially among older patients (about 20%), and longer delays to treatment, which may have contributed to the increased in-hospital and 30-day mortality during the pandemic.Trial registration numberNCT04412655.

2021 ◽  
Author(s):  
Pria MD Nippak ◽  
Jodie Pritchard ◽  
Robin Horodyski ◽  
Candace J Ikeda-Douglas ◽  
Winston W Isaac

Background ST-elevation myocardial infarction (STEMI) remains the second leading cause of death in Canada. Primary percutaneous coronary intervention (PCI) has been recognized as an effective method for treating STEMI. Improved access to primary PCI can be achieved through the implementation of regional PCI centres, which was the impetus for implementing the PCI program in an east Toronto hospital in 2009. As such, the purpose of this study was to measure the efficacy of this program regional expansion. Methods A retrospective review of 101 patients diagnosed with STEMI from May to Sept 2010 was conducted. The average door-to-balloon time for these STEMI patients was calculated and the door-to-balloon times using different methods of arrival were analyzed. Method of arrival was by one of three ways: paramedic initiated referral; patient walk-ins to PCI centre emergency department; or transfer after walk-in to community hospital emergency department. Results The study found that mean door-to balloon time for PCI was 112.5 minutes. When the door-to-balloon times were compared across the three arrival methods, patients who presented by paramedic-initiated referral had significantly shorter door-to-balloon times, (89.5 minutes) relative to those transferred (120.9 minutes) and those who walked into a PCI centre (126.7 minutes) (p = 0.047). Conclusions The findings suggest that the partnership between the hospital and its EMS partners should be continued, and paramedic initiated referral should be expanded across Canada and EMS systems where feasible, as this level of coverage does not currently exist nationwide. Investments in regional centres of excellence and the creation of EMS partnerships are needed to enhance access to primary PCI.


2021 ◽  
Author(s):  
Pria MD Nippak ◽  
Jodie Pritchard ◽  
Robin Horodyski ◽  
Candace J Ikeda-Douglas ◽  
Winston W Isaac

Background ST-elevation myocardial infarction (STEMI) remains the second leading cause of death in Canada. Primary percutaneous coronary intervention (PCI) has been recognized as an effective method for treating STEMI. Improved access to primary PCI can be achieved through the implementation of regional PCI centres, which was the impetus for implementing the PCI program in an east Toronto hospital in 2009. As such, the purpose of this study was to measure the efficacy of this program regional expansion. Methods A retrospective review of 101 patients diagnosed with STEMI from May to Sept 2010 was conducted. The average door-to-balloon time for these STEMI patients was calculated and the door-to-balloon times using different methods of arrival were analyzed. Method of arrival was by one of three ways: paramedic initiated referral; patient walk-ins to PCI centre emergency department; or transfer after walk-in to community hospital emergency department. Results The study found that mean door-to balloon time for PCI was 112.5 minutes. When the door-to-balloon times were compared across the three arrival methods, patients who presented by paramedic-initiated referral had significantly shorter door-to-balloon times, (89.5 minutes) relative to those transferred (120.9 minutes) and those who walked into a PCI centre (126.7 minutes) (p = 0.047). Conclusions The findings suggest that the partnership between the hospital and its EMS partners should be continued, and paramedic initiated referral should be expanded across Canada and EMS systems where feasible, as this level of coverage does not currently exist nationwide. Investments in regional centres of excellence and the creation of EMS partnerships are needed to enhance access to primary PCI.


2016 ◽  
Vol 119 (suppl_1) ◽  
Author(s):  
Takao Konishi ◽  
Naohiro Funayama ◽  
Tadashi Yamamoto ◽  
Daisuke Hotta

Background: Elevated neutrophil to leukocyte ratio in patients with ST-segment elevation myocardial infarction (STEMI) is associated with adverse clinical outcomes. However, whether decreased eosinophil ratio after primary percutaneous coronary intervention (PCI) reflects larger infarct size has not been fully investigated. This study examined the relationship between eosinophil ratio and creatinine kinase-MB (CK-MB) elevation after primary PCI in patients presenting with STEMI. Methods and Results: We analyzed the data of 321 consecutive patients who underwent primary PCI for ST-elevation myocardial infarction between January 2009 and August 2015. Total and each type of leukocyte counts 24 hours after admission were measured. The eosinophil/leukocyte ratio (ER) was calculated as the ratio of eosinophil to leukocyte count. The primary end point was major adverse cardiac event (MACE) and the follow-up period was 180 days. The mean ER and max CK-MB was 0.44±0.65 % and 217.3±224.4 IU/l, respectively. ER obtained 24 hours after admission was inversely correlated with CK-MB concentration (r=-0.37, r2=0.14, P<0.001). MACE within 180 days occurred in 68 patients (21%) including death (9%), myocardial infarction (MI) (1%) and target lesion or vessel revascularization (10%). Patients who had MACE within 180 days had lower ER (0.20±0.51 vs 0.49±0.66, P<0.001) at 24 hours after admission. Conclusions: The decreased ER after primary PCI in patients presenting with STEMI was associated with increased CK-MB concentration, which might indicate larger infarct size, therefore, poor prognosis.


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