OBJECTIVES: This study sought to determine whether mortality complicating ST-segment elevation myocardial infarction (STEMI) was impacted by the design of transport systems. BACKGROUND: It is recommended that regions develop systems to facilitate rapid transfer of STEMI patients to centers equipped to perform primary percutaneous coronary intervention (PCI), yet the impact on mortality from the design of such systems remains unknown. METHODS: Within the framework of a citywide system where all STEMI patients are referred for primary PCI, we compared patients referred directly from the field to a PCI center to patients transported beforehand from the field to a non-PCI-capable hospital. The primary outcome was all-cause mortality at 180 days. RESULTS: A total of 1,389 consecutive patients with STEMI were assessed by the emergency medical services (EMS) and referred for primary PCI: 822 (59.2%) were referred directly from the field to a PCI center, and 567 (40.8%) were transported to a non-PCI-capable hospital first. Death at 180 days occurred in 5.0% of patients transferred directly from the field, and in 11.5% of patients transported from the field to a non-PCI-capable hospital (p < 0.0001. After adjusting for baseline characteristics in a multivariable logistic regression model, mortality remained lower among patients referred directly from the field to the PCI center (odds ratio: 0.52, 95% confidence interval: 0.31 to 0.88, p = 0.01). Similar results were obtained by using propensity score methods for adjustment. CONCLUSIONS: A STEMI system allowing EMS to transport patients directly to a primary PCI center was associated with a significant reduction in mortality. Our results support the concept of STEMI systems that include pre-hospital referral by EMS.
OBJECTIVES: This study sought to determine whether mortality complicating ST-segment elevation myocardial infarction (STEMI) was impacted by the design of transport systems. BACKGROUND: It is recommended that regions develop systems to facilitate rapid transfer of STEMI patients to centers equipped to perform primary percutaneous coronary intervention (PCI), yet the impact on mortality from the design of such systems remains unknown. METHODS: Within the framework of a citywide system where all STEMI patients are referred for primary PCI, we compared patients referred directly from the field to a PCI center to patients transported beforehand from the field to a non-PCI-capable hospital. The primary outcome was all-cause mortality at 180 days. RESULTS: A total of 1,389 consecutive patients with STEMI were assessed by the emergency medical services (EMS) and referred for primary PCI: 822 (59.2%) were referred directly from the field to a PCI center, and 567 (40.8%) were transported to a non-PCI-capable hospital first. Death at 180 days occurred in 5.0% of patients transferred directly from the field, and in 11.5% of patients transported from the field to a non-PCI-capable hospital (p < 0.0001. After adjusting for baseline characteristics in a multivariable logistic regression model, mortality remained lower among patients referred directly from the field to the PCI center (odds ratio: 0.52, 95% confidence interval: 0.31 to 0.88, p = 0.01). Similar results were obtained by using propensity score methods for adjustment. CONCLUSIONS: A STEMI system allowing EMS to transport patients directly to a primary PCI center was associated with a significant reduction in mortality. Our results support the concept of STEMI systems that include pre-hospital referral by EMS.
Authors: Mathew Mercuri; Michelle Welsford; Jon-David Schwalm; Shamir R Mehta; Purnima Rao-Melacini; Tej Sheth; Michael Rokoss; Sanjit S Jolly; James L Velianou; Madhu K Natarajan Journal: CMAJ Open Date: 2015-01-13
Authors: Ajay Yadlapati; Mark Gajjar; Daniel R Schimmel; Mark J Ricciardi; James D Flaherty Journal: Intern Emerg Med Date: 2016-10-06 Impact factor: 3.397
Authors: Anthony N DeMaria; Jeroen J Bax; Gregory K Feld; Barry H Greenberg; Jennifer L Hall; Mark A Hlatky; Wilbur Y W Lew; João A C Lima; Ehtisham Mahmud; Alan S Maisel; Sanjiv M Narayan; Steven E Nissen; David J Sahn; Sotirios Tsimikas Journal: J Am Coll Cardiol Date: 2013-01-22 Impact factor: 24.094
Authors: Rodrigo Estévez-Loureiro; Angela López-Sainz; Armando Pérez de Prado; Carlos Cuellas; Ramón Calviño Santos; Norberto Alonso-Orcajo; Jorge Salgado Fernández; Jose Manuel Vázquez-Rodríguez; Maria López-Benito; Felipe Fernández-Vázquez Journal: World J Cardiol Date: 2014-06-26
Authors: Benjamin Hibbert; Ronnen Maze; Ali Pourdjabbar; Trevor Simard; F Daniel Ramirez; Rohit Moudgil; Melissa Blondeau; Marino Labinaz; Alexander Dick; Christopher Glover; Michael Froeschl; Jean-François Marquis; Derek Y F So; Michel R Le May Journal: PLoS One Date: 2014-03-20 Impact factor: 3.240