Diagnostic strategies for women with suspected coronary artery disease

Becoming a coronary artery bypass graft surgery patient: a grounded theory study of women's experiences

AIM

To explore women's experiences of becoming a coronary artery bypass graft surgery patient.

BACKGROUND

Coronary heart disease is a leading cause of morbidity and mortality for both sexes worldwide and is associated with significant human, fiscal and personal burden. There are growing numbers of women undergoing coronary artery bypass graft surgery; however, little is known about their experiences of being diagnosed, referred and waiting for surgery.

DESIGN

Grounded theory.

METHODS

A grounded theory study of 30 UK women with coronary heart disease waiting to undergo coronary artery bypass graft surgery. Data were collected using semi-structured interviews and were contextualised through informal observation of the main clinical areas.

RESULTS

Coronary heart disease and associated symptoms had extensive physical, social and emotional ramifications for the women. A substantive theory of the public-private dialogue around maintaining and renegotiating normality emerged and demonstrated that women faced significant disruption to their lives as they attempted to normalise and make sense of their illness experiences. Six categories emerged from the data: help seeking, diagnosis and referral, conceptualising surgery, living with coronary heart disease and waiting for surgery.

CONCLUSION

This study has uncovered women's experiences of becoming a coronary artery bypass graft patient. It has highlighted the extensive ramifications of heart disease and the need for more gender-sensitive information and support.

RELEVANCE TO CLINICAL PRACTICE

The findings of this study provide health care professionals with a greater understanding of the experiences and needs of women through their journey to becoming a coronary artery bypass graft surgery. The study demonstrates that women need meaningful information particularly in relation to domestic and physical functioning. Nurses are in an important position to contribute to the care and support of women undergoing this process by providing appropriate and gender-sensitive information that can improve health outcomes and quality of life.

Coronary Artery Disease in Women

There is a large media effort currently available to increase awareness of coronary artery disease in women. Despite this, there is still a misconception among some people, and unfortunately, some healthcare providers, that heart disease is a man's disease. This article will review some of the information about women and coronary artery disease; a short review of the literature, symptoms, diagnostic tests, and treatment pertinent to women; and the action nurses can take to help educate the public, and other healthcare providers, about this deadly threat.

What's wrong with me? Women's coronary heart disease diagnostic experiences

Most women are unaware that that they may experience atypical coronary heart disease (CHD) symptoms. Women's atypical presentation often results in women having difficulty being diagnosed with CHD or myocardial infarction. Investigating women's CHD diagnostic experiences may reveal vital areas amenable to intervention. This secondary analysis explored women's CHD diagnostic experiences. Forty women completed in-depth interviews in their homes that were audiotaped and lasted 2-3 hours. Using content analysis and constant comparison, five themes emerged: awareness, seeking treatment, frustration, treatment decisions, and anger. Despite numerous symptoms and visits with clinicians, most women were not diagnosed with CHD before myocardial infarction. During the infarction, women with typical symptoms were easily diagnosed while those with atypical symptoms received a delayed diagnosis. Those who repeatedly sought treatment were angry about not being diagnosed earlier. Further research is needed to promote early symptom recognition, timely diagnosis, and efficacious treatment-keys to improving women's CHD outcomes and to preventing similar negative diagnostic experiences.

Development of the McSweeney Acute and Prodromal Myocardial Infarction Symptom Survey

BACKGROUND/OBJECTIVES

Coronary heart disease (CHD) is the number one cause of death in women, yet, little is known about women's symptoms. Early symptom recognition of CHD in women is essential but most instruments do not assess both prodromal and acute CHD symptoms. Our aims were to develop an instrument validly describing women's prodromal and acute symptoms of myocardial infarction and to establish reliability of the instrument, the McSweeney Acute and Prodromal Myocardial Infarction Symptom Survey (MAPMISS).

METHODS

Four studies contributed to the content validity and reliability of this instrument. Two qualitative studies provided the list of symptoms that were confirmed in study 3. The resulting instrument assesses 37 acute and 33 prodromal symptoms. In study 4, 90 women were retested 7 to 14 days after their initial survey. We used the kappa statistic to assess agreement across administrations.

RESULTS

The women added no new symptoms to the MAPMISS. The average kappa of acute symptoms was 0.52 and 0.49 for prodromal. Next we calculated a weighted score. The mean acute score for time 1 was 19.4 (SD = 14.43); time 2 was 12.4 (SD= 8.79) with Pearson correlation indicating stability (r = .84; P < .01). The mean prodromal score at time 1 was 23.80 (SD= 24.24); time 2 was 26.79 (SD = 30.52) with a Pearson correlation of r = .72; P < .01.

CONCLUSIONS

The tool is comprehensive, has high content validity, and acceptable test-retest reliability. Low kappas were related to few women having those symptoms. The symptom scores remained stable across administrations.

Women's early warning symptoms of acute myocardial infarction

BACKGROUND

Data remain sparse on women's prodromal symptoms before acute myocardial infarction (AMI). This study describes prodromal and AMI symptoms in women.

METHODS AND RESULTS

Participants were 515 women diagnosed with AMI from 5 sites. Using the McSweeney Acute and Prodromal Myocardial Infarction Symptom Survey, we surveyed them 4 to 6 months after discharge, asking about symptoms, comorbidities, and demographic characteristics. Women were predominantly white (93%), high school educated (54.8%), and older (mean age, 66+/-12), with 95% (n=489) reporting prodromal symptoms. The most frequent prodromal symptoms experienced more than 1 month before AMI were unusual fatigue (70.7%), sleep disturbance (47.8%), and shortness of breath (42.1%). Only 29.7% reported chest discomfort, a hallmark symptom in men. The most frequent acute symptoms were shortness of breath (57.9%), weakness (54.8%), and fatigue (42.9%). Acute chest pain was absent in 43%. Women had more acute (mean, 7.3+/-4.8; range, 0 to 29) than prodromal (mean, 5.71+/-4.36; range, 0 to 25) symptoms. The average prodromal score, symptom weighted by frequency and intensity, was 58.5+/-52.7, whereas the average acute score, symptom weighted by intensity, was 16.5+/-12.1. These 2 scores were correlated (r=0.61, P<0.001). Women with more prodromal symptoms experienced more acute symptoms. After controlling for risk factors, prodromal scores accounted for 33.2% of acute symptomatology.

CONCLUSIONS

Most women have prodromal symptoms before AMI. It remains unknown whether prodromal symptoms are predictive of future events.