The physiological basis of clinical decision-making in venoarterial extracorporeal life support

Author(s):  
Paul Ramesh Thangaraj
2017 ◽  
Vol 14 (3) ◽  
Author(s):  
Paul Davis ◽  
Graham Howie ◽  
Bridget Dicker

IntroductionInternationally, autonomous paramedic-delivered pre-hospital thrombolysis (PHT) administration for ST-elevation myocardial infarction patients has proven to be a highly effective strategy in facilitating expedited delivery of this treatment modality. However, current New Zealand models rely on physician authorised telemetry-based systems which have proved problematic, particularly due to technological failings. The aim of this study is to establish whether current paramedic education in New Zealand is sufficient for the introduction of an autonomous paramedic clinical decision-making model of PHT.MethodsA one-hour workshop introduced a new PHT protocol to 81 self-selected paramedic participants – both rural and metropolitan based – from New Zealand. Paramedics were then tested in protocol application through completion of a scenario-based standardised written test. Four written scenarios constructed from actual field cases assessed 12-lead electrocardiogram interpretation, understanding of protocol inclusion/exclusion criteria, and treatment rationale. Ten multiple-choice questions further tested cardiac and pharmacology knowledge as well as protocol application.Results Overall clinical decision-making showed a sensitivity of 92.0% (95% CI: 84.8–96.5), and a specificity of 95.6% (95% CI: 89.1–98.8). Electrocardiogram misinterpretation was the most common error. University educated paramedics (n=44) were significantly better at clinical decision-making than in-house industry trained paramedics (n=37) (p=0.001), as were advanced life support paramedics (n=36) compared to paramedics of lesser practice levels (n=45) (p=0.006).Conclusion Our New Zealand paramedic sample demonstrated an overall clinical decision-making capacity sufficient to support the introduction of a new autonomous paramedic PHT protocol. Recent changes in paramedic education toward university degree programs are supported.


CJEM ◽  
2020 ◽  
Vol 22 (S1) ◽  
pp. S57-S57
Author(s):  
K. Lemay ◽  
P. Finestone ◽  
R. Liu ◽  
R. De Gorter ◽  
L. Calder

Introduction: Physicians who practice emergency medicine (EM) often perform procedural interventions, which can occasionally result in unintended patient harm. Our study's objective was to identify and describe the interventions and contributing factors associated with medico-legal (ML) cases involving emergency physicians performing procedural interventions. Methods: The Canadian Medical Protective Association (CMPA) is a not-for-profit, ML organization which represented over 99,000 physicians at the time of this study. We extracted five years (2014-2018) of CMPA data describing closed ML cases involving procedural interventions (e.g. suturing, reducing a dislocated joint) and excluding interventions related to pharmacotherapy (e.g. injection of local anesthetic), diagnosis (electrocardiograms) and physical assessments (e.g. ear exams), performed by physicians practicing EM. We then applied an internal contributing factor framework to identify themes. We analysed the data using descriptive statistics. Results: We identified 145 cases describing 145 patients who had 205 procedures performed in the course of their EM care. The three most common interventions were orthopedic injury management (47/145, 32.4%), wound management (43/145, 29.7%), and Advanced Cardiac Life Support (24/145, 16.6%). Out of 145 patients, 93.8% (136/145) experienced a patient safety event, and 55.9% (76/136) suffered an avoidable harmful incident. One quarter of patients suffered mild harm (34/76, 25.0%), 18.4% of patients died, 14.5% suffered severe harm, and 13.2% moderate harm. Peer experts were critical of 86/145 cases (59.3%) where the following provider contributing factors were found: a lack of situational awareness (20/68, 29.4%), and deficient physician clinical decision-making (54/68, 79.7%). Clinical decision-making issues included a lack of thoroughness of assessment (33/54, 61.1%), failure to perform tests or interventions (21/54, 38.9%), and a delay or failure to seek help from another physician (17/54, 31.2%). Peer experts were also critical of 48.8% of cases containing team factors (42/86) due to deficient medical record keeping (26/42, 61.9%), and communication breakdown with patients or other team members (25/42, 59.5%). Conclusion: Both provider and team factors contributed to ML cases involving EM physicians performing procedural interventions. Addressing these factors may improve patient safety and reduce ML risk for physicians.


2011 ◽  
Vol 20 (4) ◽  
pp. 121-123
Author(s):  
Jeri A. Logemann

Evidence-based practice requires astute clinicians to blend our best clinical judgment with the best available external evidence and the patient's own values and expectations. Sometimes, we value one more than another during clinical decision-making, though it is never wise to do so, and sometimes other factors that we are unaware of produce unanticipated clinical outcomes. Sometimes, we feel very strongly about one clinical method or another, and hopefully that belief is founded in evidence. Some beliefs, however, are not founded in evidence. The sound use of evidence is the best way to navigate the debates within our field of practice.


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