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Patients with diabetes are not more likely to have atypical symptoms when seeking care of a first myocardial infarction: an analysis of 4028 patients in the Northern Sweden MONICA Study
Umeå University, Faculty of Medicine, Department of Nursing. (Arcum)ORCID iD: 0000-0002-7918-6121
Umeå University, Faculty of Medicine, Department of Nursing. (Arcum)
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Cardiology. (Kardiologi ; Arcum)
Umeå University, Faculty of Medicine, Department of Public Health and Clinical Medicine, Medicine. Internal Medicine, Sunderbyn, Luleå, Sweden. (Arcum)
2012 (English)In: Diabetic Medicine, ISSN 0742-3071, E-ISSN 1464-5491, Vol. 29, no 7, e82-e87 p.Article in journal (Refereed) Published
Abstract [en]

Aim: To describe symptoms of a first myocardial infarction in men and women with and without diabetes.

Methods: We conducted a population-based study of 4028 people aged 25-74 years, with first myocardial infarction registered in the Northern Sweden Multinational MONItoring of trends and determinants in CArdiovascular disease (MONICA) myocardial infarction registry between 2000 and 2006. Symptoms were classified as typical or atypical according to the World Health Organization MONICA manual.

Results: Among patients with diabetes, 90.1% reported typical symptoms of myocardial infarction; the corresponding proportion among patients without diabetes was 91.5%. In the diabetes group, 88.8% of women and 90.8% of men had typical symptoms of myocardial infarction. No differences were found in symptoms of myocardial infarction between women with and without diabetes or between men with and without diabetes. Atypical symptoms were more prevalent in the older age groups (> 65 years) than in the younger age groups (< 65 years). The increases were approximately equal among men and women, with and without diabetes. Diabetes was not an independent predictor for having atypical symptoms of myocardial infarction.

Conclusions: Typical symptoms of myocardial infarction were equally prevalent in patients with and without diabetes and there were no sex differences in symptoms among persons with diabetes. Diabetes was not a predictor of atypical symptoms.

© 2011 The Authors. Diabetic Medicine© 2011 Diabetes UK.

Place, publisher, year, edition, pages
John Wiley & Sons, 2012. Vol. 29, no 7, e82-e87 p.
Keyword [en]
diabetes mellitus, myocardial infarction, sex differences, symptoms
National Category
Cardiac and Cardiovascular Systems
Identifiers
URN: urn:nbn:se:umu:diva-51148DOI: 10.1111/j.1464-5491.2011.03561.xISI: 000305458500012PubMedID: 22211855OAI: oai:DiVA.org:umu-51148DiVA: diva2:475905
Available from: 2012-01-11 Created: 2012-01-11 Last updated: 2017-12-08Bibliographically approved
In thesis
1. Symptoms and care seeking behaviour during myocardial infarction in patients with diabetes
Open this publication in new window or tab >>Symptoms and care seeking behaviour during myocardial infarction in patients with diabetes
2015 (English)Doctoral thesis, comprehensive summary (Other academic)
Alternative title[sv]
Symtom, fördröjning och beslut att söka vård vid hjärtinfarkt hos patienter med diabetes
Abstract [en]

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.

Abstract [sv]

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.

Place, publisher, year, edition, pages
Umeå: Umeå universitet, 2015. 53 p.
Series
Umeå University medical dissertations, ISSN 0346-6612 ; 1700
Keyword
myocardial infarction, diabetes mellitus, symptoms, symptom interpretation, pre-hospital delay, patient delay, decision making, care seeking behaviour
National Category
Nursing
Research subject
Caring Sciences
Identifiers
urn:nbn:se:umu:diva-99983 (URN)978-91-7601-222-2 (ISBN)
Public defence
2015-03-13, Aulan, vårdvetarhuset, Umeå universitet, Umeå, 09:00 (Swedish)
Opponent
Supervisors
Available from: 2015-02-20 Created: 2015-02-17 Last updated: 2017-02-14Bibliographically approved

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