Rose-Marie Isaksson

Time Trends in Symptoms and Prehospital Delay Time in Women vs. Men with Myocardial Infarction Over a 15-Year Period. The Northern Sweden MONICA Study

Background: Few studies have examined the time between onset of myocardial infarction (MI) symptoms and arrival at hospital (prehospital delay time) and symptoms in men vs. women. Aims: To describe prehospital delay time and symptoms in men vs. women with MI and to analyse trends over time and according to age. Methods: The Northern Sweden MONICA myocardial infarction registry, 1989–2003, included 5072 men and 1470 women with a confirmed MI. Results: Typical pain was present in 86% of the men and 81% of the women. The proportion with typical symptoms decreased over time for men and increased for women. Typical symptoms were more common among younger persons than older persons. Insufficiently reported symptoms was unchanged in men over time and decreased among women. Up to the age of 65, no gender differences were seen in the prehospital delay. In the oldest age group (65–74 years) time to hospital was longer than among the younger groups, especially among women. Conclusion: There were no major gender differences in prehospital delay or type of symptoms. However, over time the proportion with typical symptoms decreased in men and increased in women. Older patients had longer prehospital delay and less typical symptoms.

Better long-term survival in young and middle-aged women than in men after a first myocardial infarction between 1985 and 2006. an analysis of 8630 patients in the Northern Sweden MONICA Study

BackgroundThere is conflicting and only scant evidence on the effect of gender on long-term survival after a myocardial infarction (MI). Our aim was to analyse sex-specific survival of patients for up to 23 years after a first MI in northern Sweden and to describe time trends.MethodsThe Northern Sweden MONICA Myocardial Infarction Registry was linked to The Swedish National Cause of Death Registry for a total of 8630 patients, 25 to 64 years of age, 6762 men and 1868 women, with a first MI during 1985-2006. Also deaths before admission to hospital were included. Follow-up ended on August 30, 2008.ResultsMedian follow-up was 7.1 years, maximum 23 years and the study included 70 072 patient-years. During the follow-up 45.3% of the men and 43.7% of the women had died. Median survival for men was 187 months (95% confidence interval (CI) 179-194) and for women 200 months (95% CI 186-214). The hazard ratio (HR) for all cause mortality after adjustment for age group was 1.092 (1.010-1.18, P = 0.025) males compared to females, i.e. 9 percent higher survival in women. After excluding subjects who died before reaching hospital HR declined to 1.017 (95%CI 0.93-1.11, P = 0.7). For any duration of follow-up a higher proportion of women were alive, irrespective of age group. The 5-year survivals were 75.3% and 77.5%, in younger (<57 years) men and women and were 65.5% and 66.3% in older (57-64 years) men and women, respectively. For each of four successive cohorts survival improved. Survival time was longer for women than for men in all age groups.ConclusionsAge-adjusted survival was higher among women than men after a first MI and has improved markedly and equally in both men and women over a 23-year period. This difference was due to lower risk for women to die before reaching hospital.

First medical contact in patients with STEMI and its impact on time to diagnosis; an explorative cross-sectional study

Objective It is unknown into what extent patients with ST-elevation myocardial infarction (STEMI) utilise a joint service number (Swedish Healthcare Direct, SHD) as first medical contact (FMC) instead of Emergency Medical Services (EMS) and how this impact time to diagnosis. We aimed to (1) describe patients’ FMC; (2) find explanatory factors influencing their FMC (ie, EMS and SHD) and (3) explore the time interval from symptom onset to diagnosis. Setting Multicentred study, Sweden. Methods Cross-sectional, enrolling patients with consecutive STEMI admitted within 24 h from admission. Results We included 109 women and 336 men (mean age 66±11 years). Although 83% arrived by ambulance to the hospital, just half of the patients (51%) called EMS as their FMC. Other utilised SHD (21%), contacted their primary healthcare centre (14%), or went directly to the emergency room (14%). Reasons for not contacting EMS were predominantly; (1) my transport mode was faster (40%), (2) did not consider myself sick enough (30%), and (3) it was easier to be driven or taking a taxi (25%). Predictors associated with contacting SHD as FMC were female gender (OR 1.92), higher education (OR 2.40), history of diabetes (OR 2.10), pain in throat/neck (OR 2.24) and pain intensity (OR 0.85). Predictors associated with contacting EMS as FMC were history of MI (OR 2.18), atrial fibrillation (OR 3.81), abdominal pain (OR 0.35) and believing the symptoms originating from the heart (OR 1.60). Symptom onset to diagnosis time was significantly longer when turning to the SHD instead of the EMS as FMC (1:59 vs 1:21 h, p<0.001). Conclusions Using other forms of contacts than EMS, significantly prolong delay times, and could adversely affect patient prognosis. Nevertheless, having the opportunity to call the SHD might also, in some instances, lower the threshold for taking contact with the healthcare system, and thus lowers the number that would otherwise have delayed even longer.

Differences in symptoms, first medical contact and pre-hospital delay times between patients with ST- and non-ST-elevation myocardial infarction

Aim: In ST-elevation myocardial infarction, time to reperfusion is crucial for the prognosis. Symptom presentation in myocardial infarction influences pre-hospital delay times but studies about differences in symptoms between patients with ST-elevation myocardial infarction and non-ST-elevation myocardial infarction are sparse and inconclusive. The aim was to compare symptoms, first medical contact and pre-hospital delay times in patients with ST-elevation myocardial infarction and non-ST-elevation myocardial infarction. Methods and results: This multicentre, observational study included 694 myocardial infarction patients from five hospitals. The patients filled in a questionnaire about their pre-hospital experiences within 24 h of hospital admittance. Chest pain was the most common symptom in ST-elevation myocardial infarction and non-ST-elevation myocardial infarction (88.7 vs 87.0%, p=0.56). Patients with cold sweat (odds ratio 3.61, 95% confidence interval 2.29–5.70), jaw pain (odds ratio 2.41, 95% confidence interval 1.04–5.58), and nausea (odds ratio 1.70, 95% confidence interval 1.01–2.87) were more likely to present with ST-elevation myocardial infarction, whereas the opposite was true for symptoms that come and go (odds ratio 0.58, 95% confidence interval 0.38-0.90) or anxiety (odds ratio 0.52, 95% confidence interval 0.29–0.92). Use of emergency medical services was higher among patients admitted with ST-elevation myocardial infarction. The pre-hospital delay time from symptom onset to first medical contact was significantly longer in non-ST-elevation myocardial infarction (2:05 h vs 1:10 h, p=0.001). Conclusion: Patients with ST-elevation myocardial infarction differed from those with non-ST-elevation myocardial infarction regarding symptom presentation, ambulance utilisation and pre-hospital delay times. This knowledge is important to be aware of for all healthcare personnel and the general public especially in order to recognise symptoms suggestive of ST-elevation myocardial infarction and when to decide if there is a need for an ambulance.

Health care contact is higher in the week preceding a first myocardial infarction : A review of medical records in Northern Sweden in 2007

Background: Prodromal symptoms before myocardial infarction (MI) are common, but there are limited data regarding health care contact prior to the acute onset of MI and the impact of gender on early presentation to health care. Aims: The purpose of this study was to describe and analyse prodromal symptoms reported in medical records and study health care contact in the week before the acute onset of MI in comparison to the general population. Methods: From the Northern Sweden MONICA Study we accessed the medical records of 359 patients aged 32–74 years with a first MI in the county of Norrbotten in 2007. We identified those patients’ health care contact during the seven days before the MI and compared them with the weekly number of contacts in the general population aged 45–74 years in the county during 2007. Results: We found that 23.1% of the women and 17.6% of the men had at least one contact the week before the MI. With the exception of the 14 women aged 45–55 years, health care consumption in both women and men in all age groups between 45– 74 years of age was 75%–165% higher in the week prior to the MI than in the general population of the same ages. In the first health care contact, pain-related symptoms were most frequent (43%), and fatigue was present in 8% of patients. There were no differences between women and men in health care consumption or presenting symptoms. Conclusion: Both women and men with a first MI are in contact more frequently than the general population in the week prior to the event.

Gender differences in symptom presentation of ST-elevation myocardial infarction – An observational multicenter survey study

BACKGROUND Symptom presentation has been sparsely studied from a gender perspective restricting the inclusion to ST elevation myocardial infarction (STEMI) patients. Correct symptom recognition is vital in order to promptly seek care in STEMI where fast reperfusion therapy is of utmost importance. Female gender has been found associated with atypical presentation in studies on mixed MI populations but it is unclear whether this is valid also in STEMI. OBJECTIVES We assessed whether there are gender differences in symptoms and interpretation of these in STEMI, and if this is attributable to sociodemographic and clinical factors. METHODS SymTime was a multicenter observational study including a validated questionnaire and data from medical records. Eligible STEMI patients (n = 532) were enrolled within 24 h after admittance at five Swedish hospitals. RESULTS Women were older, more often single and had lower educational level. Chest pain was less prevalent in women (74 vs 93%, p < 0.001), whereas shoulder (33 vs 15%, p < 0.001), throat/neck (34 vs 18%, p < 0.001), back pain (29 versus 12%, p < 0.001) and nausea (49 vs 29%, p < 0.001) were more prevalent. Women less often interpreted their symptoms as of cardiac origin (60 vs 69%, p = 0.04). Female gender was the strongest independent predictor of non-chest pain presentation, odds ratio 5.29, 95% confidence interval 2.85-9.80. CONCLUSIONS A striking gender difference in STEMI symptoms was found. As women significantly misinterpreted their symptoms more often, it is vital when informing about MI to the society or to high risk individuals, to highlight also other symptoms than just chest pain.

Gender disparities in first medical contact and delay in ST-elevation myocardial infarction: a prospective multicentre Swedish survey study

Objectives Compare gender disparities in ST-elevation myocardial infarction (STEMI) regarding first medical contact (FMC) and prehospital delay times and explore factors associated with prehospital delay in men and women separately. Design Cross-sectional study based on medical records and a validated questionnaire. Eligible patients were enrolled within 24 hours after admittance to hospital. Setting Patients were included from November 2012 to January 2014 from five Swedish hospitals with catheterisation facilities 24/7. Participants 340 men and 109 women aged between 31 and 95 years completed the survey. Main outcome measures FMC were divided into five possible contacts: primary healthcare centre by phone or directly, national advisory nurse by phone, emergency medical services (EMS) and emergency room directly. Two parts of prehospital delay times were studied: time from symptom onset to FMC and time from symptom onset to diagnostic ECG. Results Women more often called an advisory nurse as FMC (28% vs 18%, p=0.02). They had a longer delay until FMC, 90 (IQR 39–221) vs 66 (28–161) min, p=0.04 and until ECG, 146 (68–316) vs 103 (61–221) min, p=0.03. Men went to hospital because of believing they were stricken by an MI to a higher extent than women did (25% vs 15%, p=0.04) and were more often recommended to call EMS by bystanders (38% vs 22%, p<0.01). Hesitating about going to hospital and experiencing pain in the stomach/back/shoulders were factors associated with longer delays in women. Believing the symptoms would disappear or interpreting them as nothing serious were corresponding factors in men. In both genders bystanders acting by contacting EMS explained shorter prehospital delays. Conclusions In STEMI, women differed from men in FMC and they had longer delays. This was partly due to atypical symptoms and a longer decision time. Bystanders acted more promptly when men than when women fell ill. Public knowledge of MI symptoms, and how to act properly, still seems insufficient.