001) (Fig  3) Comparisons of individual components of DTB (media

001) (Fig. 3). Comparisons of individual components of DTB (median, IQR) are shown in Fig. 4. Door-to-ECG and ECG-to-call intervals were significantly shorter in EMS-transported patients, whereas call-to-lab, lab-to-case start, and case start-to-balloon intervals were similar in both groups. The overall ED processing interval (door-to-call) was shorter in EMS-transported patients, but the cath Alpelisib solubility dmso lab processing interval (call-to-balloon) was similar compared to self-transported patients. (Fig. 3) Compared with EMS-transported patients, self-transported patients took longer to arrive at the ED

from symptom onset (symptom-to-door, 2.3 versus 1.2 hours, p < 0.001), and had a significantly delayed symptom-to-balloon time (4.3 versus 2.5 hours, p < 0.001) (Fig. 5). In-hospital clinical outcomes were similar in both groups, although there was a non-statistical reduction of mortality in the EMS-transported group. (Table 3) On multivariate analysis, (Table 4) self-transport compared with EMS-transport correlated significantly with a DTB > 90 minutes (odds ratio 5.30, 95% confidence

interval 2.56–11.00, p < 0.001). (Table 4) Presentation during off hours was also found to correlate independently with DTB > 90 minutes (odds ratio 3.09, 95% confidence interval 1.63–5.87, p = 0.001). We did not find any significant interaction between self-transport and off-hours presentation. None of the other variables included in the multivariate model correlated

with DTB > 90 minutes. With continued emphasis on shortening the symptom-to-treatment time in patients SB203580 research buy presenting with acute myocardial infarction, the present study detects important findings that may impact this mission: 1) compared to self-transport, EMS transport leads to faster in-hospital ED processing time, translating to reduction in DTB time in STEMI patients undergoing primary PCI; 2) EMS-transported patients experienced shorter delays to hospital care from symptom onset; and 3) self-transport and off hours presentation predicts delayed DTB times. The use of EMS has been recommended as a vital component in STEMI care [6]. The findings from our study were consistent with those from the National Chlormezanone Cardiovascular Data Registry [11], demonstrating that EMS transport in STEMI care reduces not only symptom-to-door times, but also DTB times. Our study was distinct in that we were able to collect data dividing DTB times into component times. This enables us to tease out the impact of EMS transport on specific time intervals, and hence evaluate the in-hospital systems processes leading to eventual reperfusion. Moreover, as one of three primary PCI centers within an urbanized area covered by a single EMS provider, it allowed us to evaluate the impact of different transport modes on system processes with greater consistency.

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