Determinants and prognostic impact of compliance with guidelines in reperfusion therapy for ST-segment elevation myocardial infarction: results from the ESTIM Midi-Pyrénées Area

Limitations in the use of automated mental status detection for clinical decision support

BACKGROUND

Clinical decision support (CDS) tools improve adherence to evidence-based practices but are dependent upon data quality in the electronic health record (EHR). Mental status is an integral component of many risk stratification scores, but it is not known whether EHR-measures of altered mental status are reliable. The Glasgow Coma Scale (GCS) is a measure of altered mentation that is widely adopted and entered in the EHR in structured format. We sought to determine the accuracy GCS < 15 as an EHR-measure of altered mentation compared to ED provider documentation.

METHODS

In patients presenting to an academic Emergency Department (ED) with pneumonia we abstracted GCS values entered by nurses during routine care and in a randomly selected subset manually reviewed provider documentation for evidence of altered mental status. We defined eConfusion as present if GCS < 15 at any point during the ED encounter. We then calculated the CURB-65 score and corresponding suggested disposition using each method. Performance of eConfusion and corresponding CURB-65 compared to manual versions was measured using agreement (Cohen's K), sensitivity, and specificity.

RESULTS

Among 300 randomly selected encounters, 47 (16 %) had eConfusion present and 46 (15 %) had evidence of altered mental status in provider documentation with Cohen's K 0.73. eConfusion had 78 % sensitivity and 96 % specificity for provider documented altered mental status. When input into CURB-65 to recommend inpatient disposition, eConfusion had 95 % sensitivity, and recommended discordant disposition for 3 %.

CONCLUSIONS

There was modest agreement between eConfusion and provider documentation of altered mental status. eConfusion had good specificity but low sensitivity which resulted in under-estimation of the CURB-65 score and occasional inappropriate disposition recommendations compared to provider documentation. These data do not support the use of GCS as a measure for altered mentation for use in CDS tools in the ED.

Utilization of clinical practice guideline on antimicrobial in China: an exploratory survey on multilevel determinants

BACKGROUND

Nowadays, irrational use of antimicrobials has threatened public health. It's necessary to expand the use of clinical practice guideline (CPG) on antimicrobial for facilitating the proper use of antimicrobial. However, the utilization status of CPG on antimicrobial and the influencing factors, especially the ones at the organizational level, remain largely unknown.

METHODS

A cross-sectional questionnaire survey was conducted on a sample among physicians from 16 public hospitals in the eastern, central and western parts of China. A multilevel regression model was employed to examine factors associated with physicians' utilization of CPG on antimicrobial.

RESULTS

A total of 815 physicians were included in this study. About 80% of the surveyed physicians reported their adherence to the CPG on antimicrobial. Dimensions of "subjective norm", "perceived risk" and "behavioral intention" from the domain of physician belief, a dimension of "ease of use" from the domain of CPG traits, and dimensions of "top management support" and "organization & implementation" from the domain of hospital practice were significantly associated with physicians' utilization of CPG on antimicrobial. And except for working department, most demographics characteristics of the physician were not found to be significantly related to the CPG use. In addition, it also showed that region is a significant factor affecting physicians' CPG use.

CONCLUSIONS

This study depicted the current status of CPG on antimicrobial and comprehensively identified its potential determinants not only from the three domains at the individual level, such as physician belief, but also from the location region at the organizational level. The results will provide a direct reference for the implementation of CPG on antimicrobial.

From international guidelines to real-world practice consensus on investigations and management of status epilepticus in adults: A modified Delphi approach

OBJECTIVE

To establish a consensus which is practical and ready-to-use on investigations (ISE) and for management of status epilepticus (MSE) in adults using a modified Delphi approach.

PATIENTS AND METHODS

A 4-round modified Delphi approach was used. First and second rounds were conducted using Google® survey with structured statements and 6-point Likert scale response. Threshold agreement was set to ≥80%. Third round was a face-to-face meeting aimed to facilitate the development of approach algorithms for ISE and MSE. Fourth round was a final review asking participants to rate the algorithms post completion.

RESULTS

The panel consisted of 8 board-certified epileptologists along with 6 neurologists from main regional hospitals across Thailand. Thirty-seven statements for ISE and 68 statements for MSE were used for the Round I survey, 17/37 (45.9%) and 49/68 (72.1%) reached threshold agreement (≥80%). The average absolute-agreement intraclass correlation coefficients for ISE and MSE were 0.82 (95% CI 0.71, 0.89) and 0.81 (95% CI 0.73, 0.87), respectively; indicating good extent of consensus among participants. Upon Round II, further 10/18 (55.6%) for ISE and 10/19 (52.6%) for MSE reached agreement. In Round III, face-to-face point-by-point discussion was performed to generate approach algorithms. All (100%) provided positive responses with the algorithms post completion in Round IV.

CONCLUSION

A practical and ready-to-use consensus using modified Delphi approach on ISE and MSE was developed in a Thai regional hospital context. In real practice, this approach is more suitable and feasible for a localized setting when compared with totally adopting international guidelines.

Quality measurement in physician-staffed emergency medical services: a systematic literature review

Purpose

Quality measurement of physician-staffed emergency medical services (P-EMS) is necessary to improve service quality. Knowledge and consensus on this topic are scarce, making quality measurement of P-EMS a high-priority research area. The aim of this review was to identify, describe and evaluate studies of quality measurement in P-EMS.

Data sources

The databases of MEDLINE and Embase were searched initially, followed by a search for included article citations in Scopus.

Study selection

The study eligibility criteria were: (1) articles describing the use of one quality indicator (QI) or more in P-EMS, (2) original manuscripts, (3) articles published from 1 January 1968 until 5 October 2016. The literature search identified 4699 records. 4543 were excluded after reviewing title and abstract. An additional 129 were excluded based on a full-text review. The remaining 27 papers were included in the analysis. Methodological quality was assessed using an adapted critical appraisal tool.

Data extraction

The description of used QIs and methods of quality measurement was extracted. Variables describing the involved P-EMSs were extracted as well.

Results of data synthesis

In the included papers, a common understanding of which QIs to use in P-EMS did not exist. Fifteen papers used only a single QI. The most widely used QIs were ‘Adherence to medical protocols’, ‘Provision of advanced interventions’, ‘Response time’ and ‘Adverse events’.

Conclusion

The review demonstrated a lack of shared understanding of which QIs to use in P-EMS. Moreover, papers using only one QI dominated the literature, thus increasing the risk of a narrow perspective in quality measurement. Future quality measurement in P-EMS should rely on a set of consensus-based QIs, ensuring a comprehensive approach to quality measurement.

Identifying key factors leading to the optimal care pathway for patients with ST-segment elevation myocardial infarction: Results from the RESCAMIP registry

BACKGROUND

In France, when someone presents with chest pain, it is recommended to call a health emergency number. The patient talks with an emergency doctor at a medical dispatch centre, who decides whether (or not) to send a Mobile Intensive Care Unit (MICU). Patients with an ST-segment elevation myocardial infarction (STEMI) should have an MICU as their first medical contact, to speed up confirmation of diagnosis and enable them to benefit from reperfusion therapy as quickly as possible.

AIM

To evaluate the proportion of patients with STEMI benefiting from an optimal care pathway, and to identify the key factors leading to this pathway.

METHODS

RESCAMIP was a multicentre registry conducted between May 2015 and May 2017 in Midi-Pyrénées. All patients treated for STEMI within 12hours of symptoms onset, without initially going into cardiac arrest, were included.

RESULTS

Data from 1371 patients with STEMI were analysed; 60% had an MICU as their first medical contact. In-hospital mortality was 4%. Factors associated with calling the medical dispatch centre when presenting chest pain were: age>65 years (odds ratio [OR] 1.37, 95% confidence interval [CI] 1.02-1.83), personal history of cardiovascular disease (OR 1.9, 95% CI 1.22-2.96) and having cardiovascular risk factors (OR 1.84, 95% CI 1.35-2.5). Factors associated with sending an MICU as first medical contact were: male sex (OR 2.11, 955 CI 1.49-2.99) and personal history of cardiovascular disease (OR 1.69, 95% CI 1.07-2.65).

CONCLUSIONS

The proportion of patients with STEMI going through non-optimal pathways was 40% in our area. We note that there are sex-based inequalities in accessing MICUs.

Effectiveness of implementation strategies for the improvement of guideline and protocol adherence in emergency care: a systematic review

OBJECTIVE

Guideline and protocol adherence in prehospital and in-hospital emergency departments (EDs) is suboptimal. Therefore, the objective of this systematic review was to identify effective strategies for improving guideline and protocol adherence in prehospital and ED settings.

DESIGN

Systematic review.

DATA SOURCES

PubMed (including MEDLINE), CINAHL, EMBASE and Cochrane.

METHODS

We selected (quasi) experimental studies published between 2004 and 2018 that used strategies to increase guideline and protocol adherence in prehospital and in-hospital emergency care. Pairs of two independent reviewers performed the selection process, quality assessment and data extraction.

RESULTS

Eleven studies were included, nine of which were performed in the ED setting and two studies were performed in a combined prehospital and ED setting. For the ED setting, the studies indicated that educational strategies as sole intervention, and educational strategies in combination with audit and feedback, are probably effective in improving guideline adherence. Sole use of reminders in the ED setting also showed positive effects. The two studies in the combined prehospital and ED setting showed similar results for the sole use of educational interventions.

CONCLUSIONS

Our review does not allow firm conclusion on how to promote guideline and protocol adherence in prehospital emergency care, or the combination of prehospital and ED care. For ED settings, the sole use of reminders or educational interventions and the use of multifaceted strategies of education combined with audit and feedback are all likely to be effective in improving guideline adherence.

Factors influencing ambulance nurses' adherence to a national protocol ambulance care: an implementation study in the Netherlands

Objectives

Adherence to prehospital guidelines and protocols is suboptimal. Insight into influencing factors is necessary to improve adherence. The aim of this study was to identify factors that influence ambulance nurses’ adherence to a National Protocol Ambulance Care (NPAC).

Methods

A questionnaire was developed using the literature, a questionnaire and expert opinion. Ambulance nurses (n=452) from four geographically spread emergency medical services (EMSs) in the Netherlands were invited to fill out the questionnaire. The questionnaire included questions on influencing factors and self-reported adherence.

Results

Questionnaires were returned by 248 (55%) of the ambulance nurses. These ambulance nurses’ adherence to the NPAC was 83.4% (95% confidence interval 81.9–85.0). Bivariate correlations showed 23 influencing factors that could be related to the individual professional, organization, protocol characteristics and social context. Multilevel regression analysis showed that 21% of the variation in adherence (R²=0.208) was explained by protocol characteristics and social influences.

Conclusion

Ambulance nurses’ self-reported adherence to the NPAC seems high. To improve adherence, protocol characteristics (complexity, the degree of support for diagnosis and treatment, the relationship of the protocol with patient outcomes) and social influences (expectance of colleagues to work with the national protocol) should be addressed.

Non-eligibility for reperfusion therapy in patients presenting with ST-segment elevation myocardial infarction: Contemporary insights from the National Cardiovascular Data Registry (NCDR)

BACKGROUND

Reperfusion therapy is lifesaving in patients presenting with ST-segment elevation myocardial infarction (STEMI). Contemporary data describing the characteristics and outcomes of patients presenting with STEMI not receiving reperfusion therapy are lacking.

METHODS

Using the ACTION Registry-GWTG database, we examined 219,726 STEMI patients (January 2007-December 2013) at 721 percutaneous coronary intervention (PCI)-capable hospitals in United States. Clinical characteristics and in-hospital outcomes were stratified by those who underwent reperfusion (n = 188,200; 86%), those who did not undergo reperfusion with a reason for ineligibility (n = 27,179; 12%), and those without reperfusion but had no reason for ineligibility (n = 4,347; 2%).

RESULTS

Compared with STEMI patients receiving reperfusion therapy, the nonreperfusion groups were older, were more often female, and had higher rates of hypertension, diabetes, prior myocardial infarction, prior stroke, atrial fibrillation, and left bundle-branch block and heart failure on presentation. The major reason for reperfusion noneligibility was coronary anatomy not suitable for PCI (33%). Presence of 3-vessel coronary disease was more common in the nonreperfusion groups (with or without a documented reason) compared with reperfusion group (38% and 36% vs 26%, P < .001, respectively). In-hospital mortality was higher in patients not receiving reperfusion therapy with or without a documented reason compared with the reperfusion group (adjusted odds ratio [95% CI] 1.88 [1.78-1.99] and 1.37 [1.21-1.57], respectively).

CONCLUSION

Most patients with STEMI not receiving reperfusion therapy had a documented reason. Coronary anatomy not suitable for PCI was the major contributor to ineligibility. In-hospital mortality was higher in patients not receiving reperfusion therapy.

[Evolution of the interventional reperfusion strategy and reperfusion times in acute ST-segment elevation myocardial infarction]

BACKGROUND

In patients with acute ST-segment elevation myocardial infarction (STEMI) treated with primary percutaneous coronary intervention (pPCI), the recommended times (first medical contact-to-balloon (M2B) <120 or <90min, and door-to-balloon (D2B) <45min) are reached in less than 50% of patients.

PURPOSE

To compare the interventional reperfusion strategy and reperfusion times between two series of consecutive STEMI patients referred for pPCI within 12hours of symptom onset, in 2007 and 2012.

METHODS

Retrospective study of 182 patients, 87 admitted from January 2007 to March 2008 (period 1), and 95 admitted from January to December 2012 (period 2). The procedural characteristics and the different times between onset of pain and mechanical reperfusion were gathered and compared by non-parametric tests.

RESULTS

Radial access, thromboaspiration, and drug eluting stents were more frequent, and cardiogenic shock was less common during period 2, compared with the period 1. The median time from first medical contact to balloon (M2B) decreased by 26% (135min, [quartiles: 113-183] in 2007 versus 100 [76-137] in 2012, P<0.001), in relation to the reduction in both prehospital times and time in the catheterization laboratory (D2B: 51 [44-65] and 44min [37-55], respectively, P<0.01).

CONCLUSIONS

The D2B and M2B times significantly decreased in our centre between 2007 and 2012, and reached the recommended values in >60% of the cases. This may be explained by better coordination between emergency medical units and interventional cardiologists, and by the presence of two paramedics in the catheterization laboratory for 24/24 7/7 pPCI since 2010 in France, in accordance with recent national regulation.

[Reperfusion in ST elevation myocardial infarction. From the guidelines to practice]

BACKGROUND

International guidelines have recommendations for selecting the type of reperfusion (fibrinolysis or angioplasty) in the setting of ST-segment elevation myocardial infarction (STEMI), and suggest that emergency-care networks adapt these recommendations according to the local environment.

AIM

To assess the proportions of STEMI patients treated with fibrinolysis or angioplasty in accordance with regional guidelines.

METHOD

Observational study based on a permanent registry of patients with STEMI of <12h duration in an emergency network in the French North Alps (Isère, Savoie, Haute-Savoie) from January 2009 to December 2012.

RESULTS

The registry included 2620 patients. Reperfusion was given in 2425/2620 (93%) of patients. Reperfusion type was in accordance with recommendations in 1567/2620 (60%) patients. Guideline-recommended fibrinolysis and angioplasty were performed in 47% (656/1385) and 79% (911/1149) respectively, of patients. In multivariable analysis, variables independently associated with guideline-recommended reperfusion were: an age < 65 years (OR 1.60; 95%CI 1.33-1.90), being managed in Haute-Savoie versus Isère or Savoie (OR 1.38; 95%CI 1.12-1.71), an arterial tension < 100mmHg (OR 1.73; 95%CI 1.27-2.35), a cardiogenic shock (OR 0.50; 95%CI 0.30-0.84), a pacemaker or left bundle branch block (OR 0.49; 95%CI 0.28-0.88), and an initial management outside the network (followed by treatment in an interventional centre in the network) (OR 0.62; 95%CI 0.40-0.94). Patients initially treated by mobile intensive care units were more often reperfused in accordance with recommendations when admitted < 3 (versus ≥ 3) h following symptom onset (adjusted OR 2.05; 95% CI 1.61-2.59), while those initially treated by in-hospital emergency units were less often reperfused in accordance with recommendation when treated < 3h following symptom onset (adjusted OR 0.67; 95% CI 0.46-0.97). In-hospital major adverse cardiac events (9.1% vs. 8.5%) and in-hospital mortality (6.4% vs. 5.1%) were not significantly different between patients reperfused in accordance with (versus not) recommendations.

CONCLUSIONS

Forty percent of patients with STEMI were not reperfused with fibrinolysis or angioplasty in accordance with regional guidelines. Characterization of this population should allow us to improve guideline adherence.

Adherence to guidelines and protocols in the prehospital and emergency care setting: a systematic review

A gap between guidelines or protocols and clinical practice often exists, which may result in patients not receiving appropriate care. Therefore, the objectives of this systematic review were (1) to give an overview of professionals' adherence to (inter)national guidelines and protocols in the emergency medical dispatch, prehospital and emergency department (ED) settings, and (2) to explore which factors influencing adherence were described in studies reporting on adherence. PubMed (including MEDLINE), CINAHL, EMBASE and the Cochrane database for systematic reviews were systematically searched. Reference lists of included studies were also searched for eligible studies. Identified articles were screened on title, abstract and year of publication (≥1990) and were included when reporting on adherence in the eligible settings. Following the initial selection, articles were screened full text and included if they concerned adherence to a (inter)national guideline or protocol, and if the time interval between data collection and publication date was <10 years. Finally, articles were assessed on reporting quality. Each step was undertaken by two independent researchers. Thirty-five articles met the criteria, none of these addressed the emergency medical dispatch setting or protocols. Median adherence ranged from 7.8-95% in the prehospital setting, and from 0-98% in the ED setting. In the prehospital setting, recommendations on monitoring came with higher median adherence percentages than treatment recommendations. For both settings, cardiology treatment recommendations came with relatively low median adherence percentages. Eight studies identified patient and organisational factors influencing adherence. The results showed that professionals' adherence to (inter)national prehospital and emergency department guidelines shows a wide variation, while adherence in the emergency medical dispatch setting is not reported. As insight in influencing factors for adherence in the emergency care settings is minimal, future research should identify such factors to allow the development of strategies to improve adherence and thus improve quality of care.

[Accuracy of the door-to-balloon time for assessing the result of the interventional reperfusion strategy in acute ST-segment elevation myocardial infarction]

BACKGROUND

In patients with acute ST-segment elevation myocardial infarction (STEMI), recent clinical guidelines recommend that primary percutaneous coronary intervention (PCI) should be performed within 90min of first medical contact or 45min after admission in cathlab. The Door-to-Balloon time (D2B) is widely used to measure the performance of interventional centres.

AIM OF THE STUDY

To analyze the time to reperfusion in a consecutive series of STEMI patients referred for primary PCI, and to evaluate the clinical accuracy of D2B in primary PCI.

METHODS

From January 2007 to March 2008, 177 patients were admitted within 12hours of a STEMI in our institution, and 87 were referred for a direct coronary angiography for primary PCI (47 by mobile medical emergency unit, 40 by the emergency department of the institution).

RESULTS

The median time from first medical contact to balloon inflation (M2B) was 135min [IQR 112-183]. Recommended times were fulfilled in a minority of patients (M2B<90min: 9%,<120min: 34%). Median cathlab D2B was 51min [IQR 44-65], and was less than 45min in 34% of patients. No differences for times to reperfusion within cathlab were found between in- and off-time hours. M2B and D2B were unavailable in 23 patients (26%), because of a spontaneous TIMI 3 flow reperfusion without indication for immediate PCI in 20 patients, contra-indication for PCI in two (distal occlusion, culprit vessel diameter less than 2mm), and failure in occlusion crossing by the guide-wire in one patient. In contrast, first medical contact- or door-to-reperfusion times, assessed by a TIMI 3 flow without no-reflow in culprit artery, were available in 95% of patients, and were shorter than M2B or D2B, respectively.

CONCLUSION

Although it is a feasible and reproducible process performance measure, D2B time is weakly associated with the outcome of the interventional reperfusion strategy in acute STEMI. This measure should be associated with an outcome performance measure, such as the rate of TIMI 3 flow achieved by primary PCI, or replaced by the Door-to-TIMI 3 flow reperfusion time.

A prospective observational study of treatment practice patterns in acute coronary syndrome patients undergoing percutaneous coronary intervention in Europe

BACKGROUND

The AntiPlatelet Therapy Observational Registry (APTOR) was a prospective observational study of acute coronary syndrome (ACS) patients undergoing percutaneous coronary intervention (PCI) in France, Spain, and the UK.

AIMS

To evaluate patterns of ACS healthcare use, focusing on APTOR results from France.

METHODS

Consecutive presenting ACS patients requiring PCI were recruited between January and August 2007. Treatments and outcomes were recorded from the qualifying ACS event to 12 months follow-up.

RESULTS

In France, qualifying diagnosis was unstable angina/non-ST-segment elevation myocardial infarction (UA/NSTEMI) in 255(53%) patients and ST-segment elevation myocardial infarction (STEMI) in 228(47%)patients. Ninety-six percent underwent PCI with stent implantation. Drug eluting stents were used less frequently in France(22%) than Spain (54%) or the UK (42%). In France, antiplatelets were more frequently received in the ambulance (21%); a 200-299mg aspirin-loading dose was most frequently received (50%) and more than a third of patients received a clopidogrel-loading dose of over 300mg (34%). At 12 months in France, 86% were still receiving aspirin, 75% clopidogrel, and 73% combination treatment.

CONCLUSION

There was considerable country-variation in ACS management. These results provide a benchmark of physician practice to compare with guidelines.

Therapy for ST-segment elevation myocardial infarction patients who present late or are ineligible for reperfusion therapy

Despite the wide contemporary availability of pharmacological and mechanical means of reperfusion, a very significant proportion of ST-segment elevation myocardial infarction (STEMI) patients are still not offered any reperfusion therapy, and some of them are considered "ineligible for reperfusion." Spontaneous reperfusion and contraindications to the use of fibrinolytics and/or mechanical reperfusion methods account only for a small part of these clinical situations. The boundary between "timely" and "late" presentation in STEMI, the appropriateness of percutaneous intervention in patients presenting late after onset of symptoms, and the impact of sex and age on the eligibility and/or choice of reperfusion therapy continue to be challenged by the most recent published data. In the current invasive-driven reperfusion era, if scientific evidence and clinical guidelines are applied diligently, the vast majority of eligible STEMI patients should receive reperfusion therapy. Pharmacological nonlytic therapy of patients with STEMI, regardless of the choice of reperfusion strategy or the absence of it, is clearly defined by the current practice guidelines. Available data suggest that for patients who do not receive any form of reperfusion, anticoagulation therapy with low molecular weight heparin provides a clear additional mortality benefit versus placebo. Fondaparinux as compared with usual care (unfractionated heparin infusion or placebo) significantly reduces the composite of death or myocardial reinfarction without increasing severe bleeding or number of strokes. In the treatment of late-presenting patients with STEMI (beyond the first 12 h after onset of symptoms), clinical evaluation and risk stratification represent the crucial elements helping in decision making between therapeutic interventions.