Background: In Myocardial infarction (MI) it is well established that timely diagnosis and treatment may reduce mortality and improve the prognosis. Therefore it is important that patients with MI seek medical care as soon as possible. Patients with diabetes have a higher risk for MI and worse prognosis compared to patients without diabetes. Previous research is inconclusive regarding symptoms and pre-hospital delay times in MI among patients with diabetes and there is lack of research in how patients with diabetes perceive, interpret and respond to MI symptoms.  Aim: The overall aim of this thesis was to explore symptoms and care seeking behaviour during MI in patients with diabetes.  Methods: This thesis comprises four studies. Studies I and II were based on data from the Northern Sweden MONICA myocardial infarction registry to describe symptoms in 4028 patients (I) and pre-hospital delay and factors associated with pre-hospital delay of ≥ 2 h in 4266 patients (II). Study III included 694 patients, at five hospitals in Sweden. The patients answered a questionnaire about symptoms, response to symptoms and delay times in MI. In study IV data were collected through interviews about experiences of getting MI and the decision to seek medical care.  Results: Study I showed that typical MI symptoms according to MONICA criteria were common in both men and women, both with and without diabetes, and no differences between the groups were found. Study II showed that more patients with diabetes had pre-hospital delay times of ≥ 2 h compared to patients without diabetes. In Study III, chest pain was the most common self-reported MI symptom in patients with and without diabetes and there were no differences between the groups. Shoulder pain/discomfort, shortness of breath and tiredness were more common in patients with diabetes whereas cold sweat was less common compared to patients without diabetes. Less than 40 % of patients with diabetes called the emergency medical services (EMS) as their first medical contact (FMC) and about 60 % initially contacted a spouse after symptom onset. Patients with diabetes reported longer patient delay than patients without diabetes, but after age and gender adjustments the results were not significant. Pain, pressure or discomfort in the stomach, anxiety, symptoms that come and go and thoughts that the symptoms would disappear were associated with longer patient delay in patients with diabetes. In study IV, the analysis revealed the core category “Becoming ready to act” and the categories perceiving symptoms, becoming aware of illness, feeling endangered, and acting on illness experience. Patients with diabetes described a variety of different MI symptoms, the onsets of MI varied and it was sometimes difficult to interpret symptoms as related to MI. The decision to seek medical care for MI was complex with several barriers for timely care seeking.  Conclusion: Chest pain was common in patients with diabetes and in contrast to our hypothesis chest pain was equally common in both patients with and without diabetes. There were more similarities than differences in MI symptoms between patients with and without diabetes. However, patients with diabetes were more likely to have pre-hospital delay for 2 hours or more compared to those without diabetes and there seems to be an underutilization of the use of emergency medical services as first medical contact. The process to seek care for MI was complex, initiated by perceiving symptoms, followed by illness awareness, feelings of being endangered and finally acting on the illness experience. / Bakgrund: Vid hjärtinfarkt är det sedan tidigare väl känt att snabb vård och behandling är viktigt för att förbättra prognosen. Det är därför av stor vikt att patienter med hjärtinfarkt söker vård så snart som möjligt efter att symtomen startat. Patienter med diabetes löper större risk att drabbas av hjärtinfarkt och prognosen efter en hjärtinfarkt är sämre än för patienter utan diabetes. Tidigare forskning har varit ofullständig när det gäller symtom och fördröjning att söka sjukvård vid hjärtinfarkt hos patienter med diabetes. Det saknas också forskning om hur patienter med diabetes uppfattar, tolkar och agerar vid symtom på hjärtinfarkt.  Syfte: Det övergripande syftet med föreliggande avhandling var att utforska symtom och hur man agerar vid hjärtinfarkt hos patienter med diabetes.  Metod: Avhandlingen består av fyra delstudier. Studie I och II baseras på data från norra Sveriges MONICA-hjärtinfarktregister för att beskriva symtom hos 4028 patienter samt pre-hospital fördröjning och faktorer som har samband med fördröjning hos 4266 patienter. Studie III inkluderade 694 patienter från 5 sjukhus i Sverige som alla besvarade en enkät om symtom, agerande och fördröjningstider vid hjärtinfarkt. I studie IV samlades data in via intervjuer som handlade om upplevelsen av att drabbas av hjärtinfarkt och beslutet att söka medicinsk vård.  Resultat: Studie I visade att typiska hjärtinfarktsymtom enligt MONICA kriterier var vanliga hos både män och kvinnor, med och utan diabetes och ingen skillnad mellan grupperna kunde påvisas. Studie II visade att en större andel av patienter med diabetes jämfört med patienter utan diabetes hade pre–hospital fördröjning ≥2 timmar. I studie III var bröstsmärta det vanligaste hjärtinfarktsymtomet hos patienter med diabetes och det var ingen skillnad jämfört med patienter utan diabetes. Smärta/obehag i skulderpartiet, andningsbesvär och trötthet var vanligare hos patienter med diabetes medan kallsvett var mindre vanligt i jämförelse med patienter utan diabetes. Mindre än 40 % av patienterna med diabetes kontaktade SOS alarm som första kontakt med sjukvården och ungefär 60 % kontaktade initialt en partner efter symtomdebut. Patienter med diabetes rapporterade längre fördröjningstider jämfört med patienter utan diabetes, men efter justeringar för ålder och kön var skillnaden inte signifikant. Smärta obehag eller tryck i magen, ångest, intermittenta symtom samt att man trodde att symtomen skulle gå över hade samband med längre patientfördröjning hos patienter med diabetes. I studie IV resulterade analysen i kärnkategorin ”Att bli redo att agera” och kategorierna att uppleva symtom, inse att man är sjuk, känna ett hot och agera utifrån upplevelsen. Patienter med diabetes beskrev en mängd olika hjärtinfarktssymtom, debuten av symtom varierade och det var ibland svårt att tolka symtomen som hjärtinfarkt. Beslutet att söka vård vid hjärtinfarkt var komplext och beslutet fördröjdes på grund av flera barriärer.  Slutsats: Sammanfattningsvis var bröstsmärta vid hjärtinfarkt vanligt och i motsats till vår hypotes lika vanligt hos patienter med som utan diabetes. Det fanns fler likheter än skillnader i hjärtinfarktsymtom mellan grupperna, Patienter med diabetes hade dock längre pre-hospital fördröjning jämfört med patienter utan diabetes. Trots betydelsen av snabb medicinsk vård vid hjärtinfarkt underutnyttjades SOS alarm som första medicinska kontakt. Processen att söka vård för hjärtinfarkt var komplex. Den började med upplevelsen av symtom, följt av insikten att man är sjuk, att man känner ett hot och slutligen agerar utifrån upplevelsen av sjukdom.

The overall aim of this thesis was to describe patients’ and spouses’ experiences of suspected acute myocardial infarction in the pre-hospital phase. A descriptive survey study was conducted to identify various factors influencing patient delay in 381 patients with suspected myocardial infarction hospitalised at a Coronary Care Unit (I) and ambulance utilisation among 110 myocardial infarction patients (II). In order to obtain a deeper understanding of the myocardial infarction patients’ own conceptions about the event, an interview study with a phenomenographic approach was conducted with 15 strategically selected myocardial infarction patients (III), within 72 hours after admission to hospital. Finally, the pre-hospital experiences of 15 spouses of myocardial infarction patients were also studied through interviews with a phenomenographic approach, within 48 hours after the affected partner’s admittance to hospital (IV). The results showed that 59% of the patients with suspected acute myocardial infarction delayed > 1 hour after onset of symptoms. The most common reasons given for delay in seeking hospital admittance were: (1) Did not consider the symptoms as to be severe enough that they warranted hospital care, (2) thought the symptoms to be temporary and that they would disappear, (3) the chest pain was more of a dull pain, (4) or, as one third of the patients chose to do, contacted the general practitioner instead of going directly to the hospital (I). Furthermore, as a first action, 59% consulted their spouse for advice about what to do henceforth. The most common reason for additional delay when the decision to go to hospital had already been taken was that the myocardial infarction patients stated that they were unaware of the advantages of a rapid decision-making process. Sixty percent went by ambulance, but it was the spouse (40%) or the personnel at the general practitioner’s office (32%) who called the emergency service number, rather than the patient him/her self (5%). The most frequently given reasons for not choosing ambulance, were that the patients did not perceive their symptoms as being serious enough to require ambulance transportation (43%), followed by that they had not thought about ambulance as an alternative at all (38%). As a third reason for not going by ambulance, the patients stated that it was unnecessary to call an ambulance when being affected by symptoms related to a myocardial infarction (26%). The patients who called an ambulance differed in some respects from those who went by private alternatives; patients with large infarctions (ST-Elevation Myocardial Infarction) went by ambulance more frequently, as did patients suffering from nausea and severe chest pain (II). The patients expressed in the interviews how the interaction with others, described as the need for supportive environment, worries for the family and the utilisation of the health-care resources, was of great importance in the pre-hospital phase. Likewise, symptom awareness, with earlier experiences of a similar situation to compare with, denying the seriousness of the situation and the use of different self-care strategies, were important in order to manage the situation. Vulnerability, expressed as anxiety and a lack of control, also influenced the decision-making process in the pre-hospital phase (III). Spouses seemed to have a strong influence on the course of events when their partner suffered an acute myocardial infarction and it emerged from the interviews how the spouses in many cases were influenced into sharing the denial of the affected partner by respecting his/her independence. The spouses accepted the partner’s need for control; took earlier marital roles and experiences into account; restraining own emotions and seeking agreement with their partners, contributing to delay. However, being resourceful by sharing the experience; having knowledge; understanding the severity; being rational and consulting others when needed, seemed to have a positive influence on the decision time in the pre-hospital phase (IV). Conclusion: The reasons for delaying or not in the pre-hospital phase, as well as the reasons for utilising the ambulance services or not, varied considerably between individuals. Earlier experiences of MI did not influence what actions to take; instead patients’ feelings, emotional attitudes to MI symptoms, inadequate coping strategies, and spouses’ influences were important components in the pre-hospital phase.

Bakgrund: Förekomsten av hjärtinfarkt har i Sverige minskat kraftigt de senaste decennierna och så även andelen personer som avlider som följd. Statistik visar dock att en större andel kvinnor än män avlider. Flera studier visar att många kvinnor avvaktar längre tid än män med att söka vård vilket kan påverka deras överlevnad. Syfte: Att belysa varför många kvinnor avvaktar med att söka vård vid hjärtinfarkt.  Metod: Litteraturöversikt har använts som metod. Databassökningar gjordes i Cinahl Complete och PubMed. Begränsningar var peer reviewed och artiklar skrivna på engelska. Artiklarna publicerades mellan år 2000 - 2022. Tio kvalitativa artiklar valdes ut för analys. Resultat: Resultatet bestod av tre kategorier: Kunskap och symptomtolkning, strategier för att hantera symptom, rädslor och kontrollbehov. Sammanfattning: Sammanfattningsvis har det framkommit att bristande kunskap om symtom vid hjärtinfarkt samt stereotypa uppfattningar av hur och vem en hjärtinfarkt drabbar är de huvudsakliga faktorerna till att kvinnor misstolkar sina symptom på hjärtinfarkt och därmed avvaktar med att söka vård. Vidare så har det framkommit att användandet av olika former av copingstrategier efter att ha feltolkat sina symptom ytterligare förlänger tiden innan kvinnor söker vård. Utifrån studien kan man dra slutsatsen att det i sjuksköterskans preventiva arbete finns ett behov av att arbeta strukturerat och systematiskt med att öka kunskapsnivån hos kvinnor gällande hjärtinfarkt. / Background: The incidence of myocardial infarctions in Sweden has decreased significantly in recent decades and so has the percentage of people who die as a result of myocardial infarctions. Statistics show, however, that more women than men die as a result. Several studies show that many women wait longer than men to seek treatment, which can affect their survival. Aim: To illustrate why many women delay seeking treatment at myocardial infarction.  Method: The chosen methodology is a review of literature. Data collection was undertaken from Cinahl Complete and PubMed. Limitations were peer reviewed articles written in English and published during the period 2000 - 2022. Ten qualitative articles were selected and analysed. Results: The result consisted of the following three categories: Knowledge and interpretation of symptoms, strategies for managing symptoms, fears and need for control. Summary: In summary, it has emerged that lack of knowledge about symptoms of myocardial infarction as well as stereotypical perceptions of how and who it affects are the main factors that lead women to misinterpret symptoms of myocardial infarction and thus delay seeking treatment. Furthermore, it has emerged that the use of various forms of coping strategies after misinterpreting symptoms further extend time to treatment. From the study it can be concluded that, within the nurse´s preventive work, there is a need for increaseing women´s level of knowledge of myocardial infarction.