Impact of health care system delay in patients with ST-elevation myocardial infarction on return to labor market and work retirement

Return to work rate of individuals after cardiac rehabilitation and the demographic and impairment factors that influence return to work in the Western Cape, South Africa

Background

Cardiovascular disease (CVD) commonly affects individuals within the working age group, often resulting in unemployment, particularly in low- to middle-income countries. The purpose of the study was to determine the return to work (RTW) rate of individuals with CVD after cardiac rehabilitation (CR) and the impact of impairment and socio-demographics on the individual's ability to (RTW).

Methods

A cross-sectional survey, namely the Work Rehabilitation Questionnaire (WORQ) was used to gather the information. The IBM SPSS software (version 25) was used to manage the statistical analysis. Individuals who completed a CR program between the ages of 18 and 64 years made up a sample of 63 research participants.

Results

The RTW rate reported that only 30 (47.6%) of the participants successfully RTW after CR and 33 (52.4%) of participants did not RTW. The results also indicated that the older the individual and the higher the degree of impairment experienced, the less likely RTW would occur.

Conclusion

Factors such as the age and level of functional impairment of the individual with CVD must be addressed more aggressively in CR programs, particularly if the goal of the individual with CVD is to RTW.

Predictors of work inability after acute myocardial infarction in Switzerland

This study aimed to examine whether acute myocardial infarction (AMI) patients in Switzerland return to work and identify factors associated therewith. Data of 4315 working-age AMI patients enrolled in the Swiss AMIS Plus registry between 01/2006 and 09/2021 with 1-year follow-up and self-reported work status were analyzed. Patient characteristics were compared between those who did not reduce their work hours, those who reduced, and those who were no longer working 1 year after AMI. Multinomial logistic regression was used to analyze independent predictors of working ability. Of the patients, 3204 (74.3%) did not reduce their work hours, 592 (13.7%) reduced and 519 (12.0%) were no longer working 1 year after AMI. Women were more likely to reduce or stop working. Patients who did not reduce were more frequently young and male. Multinomial logistic regression showed that work reduction was associated with female sex and a Killip class > 2 at admission whereas stopping work was associated with female sex and comorbidities. A high rate of AMI patients in Switzerland (88%) return to work 1 year after AMI. Approximately 1 in 8 did not return to work and approximately 1 in 7 reduced their work hours. Important factors associated with reducing or no longer working after AMI were female sex, older age and a higher proportion of comorbidities.

Factors associated with return to work after acute myocardial infarction: A systematic review and meta-analysis

BACKGROUND

The incidence of young acute myocardial infarction (AMI) is increasing. Return-to-work is an important indicator for patients' psycho-social recovery. However, factors influencing return-to-work after AMI are yet to be determined.

OBJECTIVE

To summary available evidence on rate and factors associated with return-to-work among AMI patients.

METHODS

The Cochrane Library, PubMed, Embase, Web of Science, Scopes and two Chinese databases (CNKI and VIP) were searched from inception to October 3, 2023. Pooled rate of return-to-work (%) and odds ratio (OR) were calculated with Stata 17 software.

RESULTS

Of 2403 records screened, 19 studies were included. Pooled rate of return-to-work at 3, 6, 12, and 24 and above months after AMI was 74%, 87%, 87%, 80% respectively. Factors associated with lower rate of return-to-work were comorbidity of diabetes (OR = 0.65; 95% CI, 0.46-0.93), history of heart failure (OR = 0.43; 95% CI, 0.23-0.80), manual labor (OR = 0.51; 95% CI, 0.35-0.76) and depression (OR = 0.59; 95% CI, 0.37-0.93). Male (OR = 1.42; 95% CI, 1.09-1.85) and higher education level (OR = 1.45; 95% CI, 1.25-1.69) were protective factors. Age, marital status and smoking were not significantly associated with return-to-work.

CONCLUSIONS

More than half of patients could return to work at 3-month post-AMI, return-to-work rate was increased during one-year post-AMI followed by a decrease. Comorbidity of diabetes, history of heart failure, manual labor and depression were negative predictors of return-to-work, while male and higher education level were protective factors. This would assist the professionals to identify the patient who was risk for unable to return-to-work and provide support for AMI patents.

Medical Mistrust Mediates the Relationship Between Nonconsensual Intersex Surgery and Healthcare Avoidance Among Intersex Adults

BACKGROUND

Intersex individuals experience poor health due, in part, to healthcare avoidance. Nonconsensual intersex surgery may contribute to medical mistrust and avoidance among intersex populations.

PURPOSE

The purpose of this study was to explore the relationship between nonconsensual surgery and healthcare avoidance among intersex populations and to examine if medical mistrust mediates this relationship.

METHODS

Data for this cross-sectional study were collected in 2018 and analyzed in 2022. Participants completed a survey collecting information on demographics, medical mistrust, history of nonconsensual surgery, and history of postponing healthcare. One hundred nine participants with valid responses to all regression model variables were included in the study. Multivariable logistic regression models controlling for age, race, and income, examined the relationship between nonconsensual surgery and postponing preventive and emergency healthcare. Mediation analyses of cross-sectional data examined whether medical mistrust mediated the relationship between nonconsensual surgery and postponing preventive and emergency healthcare.

RESULTS

Mean medical mistrust score was 2.8 (range = 1-4; standard deviation = 0.8), 49.7% of participants had nonconsensual surgery in their lifetime, 45.9% postponed emergency healthcare, and 61.5% postponed preventive healthcare in their lifetime. Nonconsensual surgery was associated with increased odds of delaying preventive (adjusted odds ratio [AOR] = 4.17; confidence interval [CI] = 1.76-9.88; p = .016) and emergency healthcare (AOR = 4.26; CI = 1.71-10.59; p = .002). Medical mistrust mediated the relationship between nonconsensual surgery and delaying preventive (indirect effect = 1.78; CI = 1.16-3.67) and emergency healthcare (indirect effect = 1.66; CI = 1.04-3.30).

CONCLUSIONS

Nonconsensual surgery contributed to healthcare avoidance in this intersex population by increasing medical mistrust. To decrease healthcare avoidance, intersex health promotion interventions should restrict nonconsensual surgery and build trust through trauma-informed care.

Labour market participation and retirement after stroke in Denmark: registry based cohort study

OBJECTIVE

To examine labour market participation and retirement among patients with stroke and matched people in the general population according to stroke subtype.

DESIGN

Nationwide, population based, matched cohort study.

SETTING

Danish Stroke Registry, covering all Danish hospitals, and other nationwide registries (2005-18).

PARTICIPANTS

Patients (aged 18-60 years and active in the labour market) with a first time diagnosis of ischaemic stroke (n=16 577), intracerebral haemorrhage (n=2025), or subarachnoid haemorrhage (n=4305), and individuals from the general population, matched on age, sex, and calendar year (n=134 428). The median Scandinavian stroke scale score was 55.

MAIN OUTCOME MEASURES

Unweighted prevalences of labour market participation, receipt of sick leave benefits, receipt of disability pension, voluntary early retirement, state pension, and death were computed for each week and up to five years after stroke diagnosis. A log-linear Poisson model was used to obtain exact prevalence estimates as well as propensity score weighted prevalence differences and prevalence ratios at six months, one year, two years, and five years after stroke diagnosis.

RESULTS

Most patients (62% of those with ischaemic stroke, 69% of those with intracerebral haemorrhage, and 52% of those with subarachnoid haemorrhage) went on sick leave within three weeks of diagnosis. Prevalence of labour market participation among patients with ischaemic stroke compared with matched individuals from the general population was 56.6% versus 96.6% at six months, and 63.9% versus 91.6% at two years. Prevalence of sick leave was 39.8% versus 2.6% at six months, and 15.8% versus 3.8% at two years. Prevalence of receipt of a disability pension was 0.9% versus 0.2% at six months, and 12.2% versus 0.6% at two years. Adjusting for socioeconomic and comorbidity differences between patients and matched individuals from the general population using propensity score weighting methods had little impact on contrasts. Patients with intracerebral haemorrhage had higher prevalences of sick leave and receipt of a disability pension and thus a lower prevalence of labour market participation, while prevalences for patients with subarachnoid haemorrhage were similar in magnitude to those for patients with ischaemic stroke.

CONCLUSIONS

In a highly resourced country, about two thirds of working age adults with ischaemic stroke of primarily mild severity participated in the labour market two years after diagnosis. Sick leave and receipt of a disability pension were the most common reasons for non-participation. Patients with intracerebral haemorrhage were less likely to return to the labour market than patients with ischaemic stroke and subarachnoid haemorrhage.

The implementation of clinical guidelines concerning return to work after myocardial infarction

PURPOSE

To examine the implementation, clinical effects, and adherence of occupational physicians to the clinical practice guidelines (CPG) published in 2003 in Israel, regarding return to work following acute myocardial infarction (AMI).

METHODS

We analyzed 3 populations referred to Maccabi Health Services occupational clinics for fitness for work examinations following AMI, either before the guidelines were published (group 1), after their first publications in 2003 (group 2) or after they were re-published in Harefuah Journal in 2007 (group3).

RESULTS

The documentation among groups 1,2,3 of different parameters like years of education (18.8%, 45.1%. 57.5%, p < 0.001), type of occupation (86.5%, 98.2%, 100.0%, p < 0.001) and New York Heart Association (NYHA) class (69.8%, 81.4%, 92.5%, p < 0.001) has all improved respectively over the years. No significant difference in sick leave was noted between the three populations.

CONCLUSION

The CPG should be interdisciplinary in the phase of writing and publication. Economical resources are needed in order to implement CPG.Implications for RehabilitationThe clinical practice guidelines should be interdisciplinary in the phase of writing and should involve all rehabilitation professionals as a team.The clinical practice guidelines need disseminating widely alongside a resource plan in order to implement it.

Prevalence and determinants of return to work after various coronary events: meta-analysis of prospective studies

Return to work (RTW) after a coronary event remains a major concern. This systematic review and meta-analysis of prospective studies published between January 1988 and August 2020, aim to evaluate the prevalence of RTW after a coronary event (myocardial infarction, acute coronary syndrome, angina pectoris) and to assess the determinants of RTW (such as follow-up duration, date of recruitment, country, gender, occupational factors, etc.). PRISMA and MOOSE guidelines were followed. Study quality was assessed using the Newcastle–Ottawa Scale. Random-effects models were carried out to determine pooled prevalence estimates and 95% confident interval. A total of 43 prospective studies (34,964 patients) were investigated. RTW overall random effects pooled prevalence was estimated at 81.1% [95% CI 75.8–85.8]. Country, year of implementation or gender did not significantly modify the prevalence estimates. Lower level of education and degraded left ventricular ejection fraction decreased RTW prevalence estimates (respectively, 76.1% vs 85.6% and 65.3% vs 77.8%). RTW prevalence estimates were higher for white-collars (81.2% vs 65.0% for blue-collars) and people with low physical workload (78.3% vs 64.1% for elevated physical workload).Occupational physical constraints seem to have a negative role in RTW while psycho-logical factors at work are insufficiently investigated. A better understanding of the real-life working conditions influencing RTW would be useful to maintain coronary patients in the labor market.

Analysis of Patient Satisfaction through the Effect of Healthcare Spending on Waiting Times for Consultations and Operations

In recent years, public authorities have invested large amounts of public money in trying to reduce waiting times for consultations and operations with the aim of improving the quality of the healthcare system. Our research aims to analyze the effect of these investments on patient satisfaction through the mediating relationship of waiting times for consultations and operations, as well as from a gender perspective. By studying a series of key indicators of the Spanish healthcare system and applying partial least squares structural equation modelling (PLS-SEM), the findings show that the model explains 12.10% of the variance in consultant waiting times, 51.90% in operation waiting times, and 27.00% in patient satisfaction. We found that increased public spending leads to increased patient satisfaction by reducing waiting times. However, no gender-based differences were found. The results provide exciting implications for theory and practice, indicating how policymakers can orient their strategies towards improving patient satisfaction.

Prevalence of Return to Work in Cardiovascular Patients After Cardiac Rehabilitation: A Systematic Review and Meta-analysis

The present systematic review and meta-analysis aimed to clarify the effects of cardiac rehabilitation (CR) on the prevalence of return to work (RTW) in cardiovascular diseases (CVDs) patients. CR plays a very important role in the management of CVDs and improves the patients' physical activity, quality of life, and a decrease in the cost of healthcare. RTW is the most important goal in the rehabilitation of CVD patients. PubMed, Web of Science, Scopus, and Google scholar were searched systematically from inception up to January 2021 for English published clinical trials and observational studies. In total, 16 studies were analyzed, of them, 8 were controlled studies. Pooled results showed that the mean age of patients was 52.30 (50.04, 54.57). The prevalence of RTW in the CR attending group was 66% (60%, 71%) and in the control group was 58% (47%, 68%). Subgroup analysis showed that the proportion of RTW was higher in white-collars 76% (73%-79%) compared to. blue-collars 63% (56%-70%). Out-patient CR with 72% (61%-81%) RTW was more effective compared to in-patient CR with 62% (44%- 78%) and usual care (control). It can be concluded that CR especially out-patient CR increases the prevalence of RTW but not much. Improved and appropriate CR programs related to each individual's disease and patient condition which follow the valid guidelines might help to increase the effectiveness of CR in terms of RTW.

Factors associated with actively working in the very long-term following acute coronary syndrome

OBJECTIVES

Returning to work after an episode of acute coronary syndrome (ACS) is challenging for many patients, and has both personal and social impacts. There are limited data regarding the working status in the very long-term after ACS.

METHODS

We retrospectively analyzed 1,632 patients who were working prior to hospitalization for ACS in a quaternary hospital and were followed-up for up to 17 years. Adjusted models were developed to analyze the variables independently associated with actively working at the last contact, and a prognostic predictive index for not working at follow-up was developed.

RESULTS

The following variables were significantly and independently associated with actively working at the last contact: age>median (hazard-ratio [HR], 0.76, p<0.001); male sex (HR, 1.52, p<0.001); government health insurance (HR, 1.36, p<0.001); history of angina (HR, 0.69, p<0.001) or myocardial infarction (MI) (HR, 0.76, p=0.005); smoking (HR, 0.81, p=0.015); ST-elevation MI (HR, 0.81, p=0.021); anterior-wall MI (HR, 0.75, p=0.001); non-primary percutaneous coronary intervention (PCI) (HR, 0.77, p=0.002); fibrinolysis (HR, 0.61, p<0.001); cardiogenic shock (HR, 0.60, p=0.023); statin (HR, 3.01, p<0.001), beta-blocker (HR, 1.26, p=0.020), angiotensin-converting enzyme (ACE) inhibitor/angiotensin II receptor blocker (ARB) (HR, 1.37, p=0.001) at hospital discharge; and MI at follow-up (HR, 0.72, p=0.001). The probability of not working at the last contact ranged from 24.2% for patients with no variables, up to 80% for patients with six or more variables.

CONCLUSIONS

In patients discharged after ACS, prior and in-hospital clinical variables, as well as the quality of care at discharge, have a great impact on the long-term probability of actively working.

Factors associated with return to work following myocardial infarction: A systematic review of observational studies

OBJECTIVES

To identify and critically synthesise literature on return to work of patients following a myocardial infarction and to identify factors that are associated with this.

BACKGROUND

Understanding when patients return to work after myocardial infarction and what factors are associated with this may be helpful in designing person-centred treatment plans to facilitate patients' rehabilitation and return to work.

DESIGN

A narrative systematic review.

REVIEW METHODS

Six databases, MEDLINE, CINAHL, Academic Search Complete, EMBASE, SCOPUS and ProQuest Health and Medicine, and the search engine Google were searched to retrieve peer-reviewed articles published in English from January 2008-January 2020. In total, 22,217 papers were sourced and screened, with 18 papers retained for quality appraisal using the Joanna Briggs Institute Critical Appraisal Tools.

RESULTS

The mean time to return to work varied between 46-192 days; about half the participants resumed work by 3 months. Patients who were male, younger, educated, non-manual workers or owned their own business, and those who evaluated their general and mental health highly, and had shorter hospitalisation, fewer comorbidities, complications and mental health issues were more likely to return to work after myocardial infarction.

RELEVANCE TO CLINICAL PRACTICE

Findings may help nurses detect patients at increased risk of failure to return to work and provide appropriate support to facilitate this.

Effect of Real-Time Physician Oversight of Prehospital STEMI Diagnosis on ECG-Inappropriate and False Positive Catheterization Laboratory Activation

Background

ST-elevation myocardial infarction diagnosis at first medical contact (FMC) and prehospital cardiac catheterization laboratory (CCL) activation are associated with reduced total ischemic time and therefore have become the dominant ST-elevation myocardial infarction referral method in primary percutaneous coronary intervention systems. We sought to determine whether physician oversight was associated with improved diagnostic performance in a prehospital CCL activation system and what effect the additional interpretation has on treatment delay.

Methods

Between 2012 and 2015, all patients in 2 greater Montreal catchment areas with a chief symptom of chest paint or dyspnea had an in-the-field electrocardiogram (ECG). A machine diagnosis of "acute myocardial infarction" resulted either in automatic CCL (automated cohort without oversight) or transmission of the ECG to the receiving centre emergency physician for reinterpretation before CCL activation. System performance was assessed in terms of the proportion of false positive and inappropriate activations (IA), as well as the proportion of patients with FMC-to-device times ≤ 90 minutes.

Results

Four hundred twenty-eight (428) activations were analyzed (311 automated; 117 with physician oversight). Physician oversight tended to decrease IAs (7% vs 3%; P = 0.062), but was also associated with a smaller proportion of patients achieving target FMC-to-device (76% vs 60%; P < 0.001). There was no significant effect on the proportion of false positive activation.

Conclusions

Real-time physician oversight might be associated with fewer IAs, but also appears to have a deleterious effect on FMC-to-device performance. Identifying predictors of IA could improve overall performance by selecting ECGs that merit physician oversight and streamlining others. Larger clinical studies are warranted.

Cardiopulmonary exercise testing for personalized job reintegration after acute cardiovascular attacks: a pilot cross-sectional study

BACKGROUND

Cardiovascular diseases (CVD), particularly the ischemic heart disease, are a growing public health issue. In addition, the return to work after an acute cardiovascular attack represents a complex challenge.

OBJECTIVES

To evaluate utility and safety of cardiopulmonary exercise testing (CPET), particularly performed "on site", to promote a return to work in line with the residual working capacity.

METHODS

Fifty-nine workers affected by a major cardiovascular event, aged 18-63 years, have been enrolled between 2015 and 2018. All the patients underwent a cardiopulmonary exercise testing (CPET) in outpatient clinic. Eleven workers also underwent the "on site" CPET, recorded during their working activities.

RESULTS

Outpatient clinic CPET outcomes (i.e. normal, mild impairment or moderate/severe impairment of cardiopulmonary function) were associated with the subjective perception of workers' health status after returning to work. The "on site" CPET was found to be safe and reliable to promote a personalized return to work of patients. In 7 out of 11 patients, the values of O2 consumption (VO2) during the working activity were higher than 40% of VO2 max as obtained from laboratory CPET.

CONCLUSIONS

This study provides evidence for safety and usefulness of "on site" CPET for a personalized statement of fitness for work. This may facilitate the job retention of patients characterized by a high risk of unnecessary job loss. The use of CPET represents a first step of energy expenditure evaluation associated with specific working tasks.

Influence of Cardiovascular Risk Factors, Comorbidities, Medication Use and Procedural Variables on Remote Ischemic Conditioning Efficacy in Patients with ST-Segment Elevation Myocardial Infarction

Remote ischemic conditioning (RIC) confers cardioprotection in patients with ST-segment elevation myocardial infarction (STEMI). Despite intense research, the translation of RIC into clinical practice remains a challenge. This may, at least partly, be due to confounding factors that may modify the efficacy of RIC. The present review focuses on cardiovascular risk factors, comorbidities, medication use and procedural variables which may modify the efficacy of RIC in patients with STEMI. Findings of such efficacy modifiers are based on subgroup and post-hoc analyses and thus hold risk of type I and II errors. Although findings from studies evaluating influencing factors are often ambiguous, some but not all studies suggest that smoking, non-statin use, infarct location, area-at-risk of infarction, pre-procedural Thrombolysis in Myocardial Infarction (TIMI) flow, ischemia duration and coronary collateral blood flow to the infarct-related artery may influence on the cardioprotective efficacy of RIC. Results from the on-going CONDI2/ERIC-PPCI trial will determine any clinical implications of RIC in the treatment of patients with STEMI and predefined subgroup analyses will give further insight into influencing factors on the efficacy of RIC.

Predicting return to work after acute myocardial infarction: Socio-occupational factors overcome clinical conditions

Objectives

Return to work after acute myocardial infarction (AMI), a leading cause of death globally, is a multidimensional process influenced by clinical, psychological, social and occupational factors, the single impact of which, however, is still not well defined. The objective of this study was to investigate these 4 factors on return to work (RTW) within 365 days after AMI in a homogeneous cohort of patients who had undergone an urgent coronary angioplasty.

Participants

We studied 102 patients, in employment at the time of AMI (88.24% of men), admitted to the Department of Cardiology of the University-Hospital of Ferrara between March 2015 to December 2016. Demographical and clinical characteristics were obtained from the cardiological records. After completing an interview on social and occupational variables and the Hospital Anxiety and Depression (HADS) questionnaire, patients underwent exercise capacity measurement and spirometry.

Results

Of the 102 patients, only 12 (12.76%) held a university degree, 68.63% were employees and 31.37% self-employed. The median number of sick-leave days was 44 (IQR 33–88). At day 30, 78.5% of all subjects had not returned to work, at day 60, 40.8% and at day 365 only 7.3% had not resumed working. At univariate analyses, educational degree (p = 0.026), self-employment status (p = 0.0005), white collar professional category (p = 0.020) and HADS depression score were significant for earlier return to work. The multivariate analysis confirms that having a university degree, being self-employed and presenting a lower value of HADS depression score increase the probability of a quicker return to work.

Conclusions

These findings suggest that the strongest predictors of returning to work within 1 year after discharge for an acute myocardial infarction are related more to socio-occupational than to clinical parameters.

Common Psychosocial Factors Predicting Return to Work After Common Mental Disorders, Cardiovascular Diseases, and Cancers: A Review of Reviews Supporting a Cross-Disease Approach

Purpose This systematic review aimed at identifying the common psychosocial factors that facilitate or hinder the return to work (RTW) after a sick leave due to common mental disorders (CMDs), cardiovascular diseases (CVDs), or cancers (CAs). Methods We conducted a review of reviews searching 13 databases from 1994 to 2016 for peer-reviewed, quantitative, cohort studies investigating factors influencing RTW after a CMD, CVD, or CA. Then, for each disease we identified additional cohort studies published after the date of the latest review included. Data were extracted following a three steps best-evidence synthesis method: the extraction of results about each predictor from studies within each single review and in the additional papers; the synthesis of results across the reviews and additional papers investigating the same disease; and the synthesis of results across the diseases. Results The search strategy identified 1029 unique records from which 27 reviews and 75 additional studies underwent comprehensive review. 14 reviews and 32 additional cohort studies met eligibility criteria. Specific predictors of RTW with different levels of evidence are provided for each disease. We found four common facilitators of RTW (job control, work ability, perceived good health and high socioeconomic status), and six barriers of RTW (job strain, anxiety, depression, comorbidity, older age and low education). Conclusion This is the first review to systematically analyze commonalities in RTW after CMDs, CVDs, or CAs. The common factors identified indicate that the RTW process presents many similarities across various diseases, thus supporting the validity of a cross-disease approach.

Helicopter vs. ground transportation of patients bound for primary percutaneous coronary intervention

BACKGROUND

Implementation of the first Danish helicopter emergency medical service (HEMS) was associated with reduced time from first medical contact to treatment at a specialized centre for patients with suspected ST elevation myocardial infarction (STEMI). We aimed to investigate effects of HEMS on mortality and labour market affiliation in patients admitted for primary percutaneous coronary intervention (PCI).

METHODS

In this prospective observational study, we included patients with suspected STEMI within the region covered by the HEMS from January 1, 2010, to April 30, 2013, transported by either HEMS or ground emergency medical services (GEMS) to the regional PCI centre. The primary outcome was 30-day mortality.

RESULTS

Among the 384 HEMS and 1220 GEMS patients, time from diagnostic ECG to PCI centre arrival was lower with HEMS (median 71 min vs. 78 min with GEMS; P = 0.004). Thirty-day mortality was 5.0% and 6.2%, respectively (adjusted OR = 0.82, 95% CI 0.44-1.51, P = 0.52. Involuntary early retirement rates were 0.62 (HEMS) and 0.94 (GEMS) per 100 PYR (adjusted IRR = 0.68, 0.15-3.23, P = 0.63). The proportion of patients on social transfer payments longer than half of the follow-up time was 22.1% (HEMS) vs. 21.2% (adjusted OR = 1.10, 0.64-1.90, P = 0.73).

CONCLUSION

In an observational study of patients with suspected STEMI in eastern Denmark, no significant beneficial effect of helicopter transport could be detected on mortality, premature labour market exit or work ability. Only a study with random allocation to one system vs. another, along with a large sample size, will allow determination of superiority of helicopter transport.

Return to Work and Risk of Subsequent Detachment From Employment After Myocardial Infarction: Insights From Danish Nationwide Registries

BACKGROUND

Limited data are available on return to work and subsequent detachment from employment after admission for myocardial infarction (MI).

METHODS AND RESULTS

Using individual-level linkage of data from nationwide registries, we identified patients of working age (30-65 years) discharged after first-time MI in the period 1997 to 2012, who were employed before admission. To assess the cumulative incidence of return to work and detachment from employment, the Aalen Johansen estimator was used. Incidences were compared with population controls matched on age and sex. Logistic regression was applied to estimate odds ratios for associations between detachment from employment and age, sex, comorbidities, income, and education level. Of 39 296 patients of working age discharged after first-time MI, 22 394 (56.9%) were employed before admission. Within 1 year 91.1% (95% confidence interval [CI], 90.7%-91.5%) of subjects had returned to work, but 1 year after their return 24.2% (95% CI, 23.6%-24.8%) were detached from employment and received social benefits. Detachment rates were highest in patients aged 60 to 65 and 30 to 39 years, and significantly higher in patients with MI compared with population controls. Predictors of detachment were heart failure (odds ratio 1.20 [95% CI, 1.08-1.34]), diabetes mellitus (odds ratio 1.13 [95% CI, 1.01-1.25]), and depression (odds ratio 1.77 [95% CI, 1.55-2.01]). High education level and high income favored continued employment.

CONCLUSIONS

Despite that most patients returned to work after first-time MI, about 1 in 4 was detached from employment after 1 year. Several factors including age and lower socioeconomic status were associated with risk of detachment from employment.

Prehospital diagnosis of patients with acute myocardial infarction

Primary percutaneous intervention (PPCI) is the preferred treatment in patients with ST elevation myocardial infarction (STEMI) if this can be performed in a timely manner. The

Sustained Performance of a "Physicianless" System of Automated Prehospital STEMI Diagnosis and Catheterization Laboratory Activation

BACKGROUND

Treatment times for primary percutaneous coronary intervention frequently exceed the recommended maximum delay. Automated "physicianless" systems of prehospital cardiac catheterization laboratory (CCL) activation show promise, but have been met with resistance over concerns regarding the potential for false positive and inappropriate activations (IAs).

METHODS

From 2010 to 2015, first responders performed electrocardiograms (ECGs) in the field for all patients with a complaint of chest pain or dyspnea. An automated machine diagnosis of "acute myocardial infarction" resulted in immediate CCL activation and direct transfer without transmission or human reinterpretation of the ECG prior to patient arrival. Any activation resulting from a nondiagnostic ECG (no ST-elevation) was deemed an IA, whereas activations resulting from ECG's compatible with ST-elevation myocardial infarction but without angiographic evidence of a coronary event were deemed false positive. In 2012, the referral algorithm was modified to exclude supraventricular tachycardia and left bundle branch block.

RESULTS

There were 155 activations in the early cohort (2010-2012; prior to algorithm modification) and 313 in the late cohort (2012-2015). Algorithm modification resulted in a 42% relative decrease in the rate of IAs (12% vs 7%; P < 0.01) without a significant effect on treatment delay.

CONCLUSIONS

A combination of prehospital automated ST-elevation myocardial infarction diagnosis and "physicianless" CCL activation is safe and effective in improving treatment delay and these results are sustainable over time. The performance of the referral algorithm in terms of IA and false positive is at least on par with systems that ensure real-time human oversight.

Changes in Acute Coronary Syndrome Treatment and Prognosis After Implementation of the Infarction Code in a Hospital With a Cardiac Catheterization Unit

INTRODUCTION AND OBJECTIVES

Emergency care systems have been created to improve treatment and revascularization in myocardial infarction but they may also improve the management of all patients with acute coronary syndrome.

METHODS

A comparative study of all patients admitted with acute coronary syndrome before and after implementation of an infarction protocol.

RESULTS

The study included 1210 patients. While the mean age was the same in both periods, the patient group admitted after implementation of the protocol had a lower prevalence of diabetes mellitus and hypertension but more active smokers and higher GRACE scores. The percentage of ST-segment elevation acute coronary syndrome (29.8%-39.5%) and coronary revascularizations (82.1%-90.1%) significantly increased among patients admitted with acute coronary syndrome, and primary angioplasty became routine (51.9%-94.9%); there was also a reduction in time to catheterization and an increase in early revascularization. The mean hospital stay was significantly shorter after implementation of the infarction protocol. In-hospital mortality was unchanged, except in high-risk patients (38.8%-22.4%). After discharge, no differences were observed between the 2 periods in cardiovascular mortality, all-cause mortality, reinfarction, or major cardiovascular complications.

CONCLUSIONS

After implementation of the infarction protocol, the percentage of patients admitted with ST-segment elevation acute coronary syndrome and the mean GRACE score increased among patients admitted with acute coronary syndrome. Hospital stay was reduced, and primary angioplasty use increased. In-hospital mortality was reduced in high-risk patients, and prognosis after discharge was the same in both periods.