Testing a Model to Reveal the Predictive Mechanism of Care-Seeking Decisions Among Patients With Acute Myocardial Infarction

Theory-based cognitive-narrative intervention versus didactic education for promoting prompt care-seeking for acute myocardial infarction: A multisite mixed-methods randomized controlled trial

BACKGROUND

Prolonged delays by patients in making care-seeking decisions remain a significant obstacle to the effective management of acute myocardial infarction.

OBJECTIVES

This study aimed to compare the effects of a theory-based cognitive-narrative intervention with those of didactic education over a 24-month period on the participants' attitudes, beliefs, and knowledge regarding acute myocardial infarction, prehospital delay time, and the use of an ambulance. We also explored participants' engagement in the intervention.

DESIGN

This study adopted a sequential mixed-methods design comprising a multisite randomized controlled trial and a qualitative study.

METHODS

Community-dwelling adult patients with a prior history of acute myocardial infarction in the past year were recruited from four hospitals in Hong Kong. They were randomly assigned to an 8-week theory-based cognitive-narrative intervention that involved a vivid experience of complex decision-making or didactic education. The Acute Coronary Syndrome Response Index questionnaire was administered at baseline (T0) and at 3- (T1), 12- (T2), and 24-month (T3) follow-up time points. Prehospital delay time and the use of an ambulance were evaluated for those participants who had recurrent acute myocardial infarction attacks during the study period.

RESULTS

A total of 608 participants were randomly assigned to the theory-based cognitive-narrative intervention group (n = 304) or the didactic education group (n = 304). The intervention group reported greater improvements than the control group in their attitudes (β = -1.053, p = 0.002) and beliefs (β = -0.686, p = 0.041) regarding acute myocardial infarction and care-seeking at T1. These effects were sustained at T2 [attitudes (β = -0.797, p = 0.018); beliefs (β = -0.692, p = 0.047)] and T3 [attitudes (β = -0.717, p = 0.024); beliefs (β = -0.701, p = 0.032)]. Sixty-three participants experienced another acute myocardial infarction event by T2. The median delay times for the intervention and control groups were 3.13 h (interquartile range (IQR: 1.15-6.48)) and 4.82 h (IQR: 2.23-9.02), respectively. The prehospital delay time was significantly reduced in the intervention group compared with the control group (β = -0.07, p = 0.011). The qualitative findings echoed the quantitative findings, as participants indicated that the intervention helped them to understand the variable nature of the disease presentation, which enabled them to recognize the symptoms more readily.

CONCLUSION

The novel cognitive-narrative intervention used in this study effectively improved the participants' attitudes and beliefs regarding acute myocardial infarction and reduced the prehospital delay time.

TRIAL REGISTRATION

This study was registered with the International Clinical Trials Registry Platform of the World Health Organization (ChiCTR-IIC-17010576) on February 2, 2017; the first participant was recruited on January 11, 2018.

Effects of a Narrative-Based Psychoeducational Intervention to Prepare Patients for Responding to Acute Myocardial Infarction: A Randomized Clinical Trial

IMPORTANCE

Despite decades of educational efforts, patients' prolonged delays in seeking care for symptoms of acute myocardial infarction (AMI) remain the greatest obstacle to successful management of the condition.

OBJECTIVE

To compare the effects of a narrative-based psychoeducational intervention with a didactic educative approach on AMI survivors' intention to seek care for AMI symptoms and on AMI knowledge.

DESIGN, SETTING, AND PARTICIPANTS

A multisite randomized clinical trial recruited community-dwelling patients aged 18 years or older with a history of AMI from 4 hospitals in Hong Kong from January 1, 2018, to January 22, 2021, and followed up participants for 1 year.

INTERVENTIONS

An 8-week narrative-based psychoeducational intervention aimed to create a vivid cognitive experience of complex decision-making and modeled desirable behavioral changes through nurse-led, interactive video sessions using model patients. The control group received 4 nurse-led sessions comprising education about AMI and care seeking delivered using a didactic approach.

MAIN OUTCOMES AND MEASURES

The primary outcome was the behavioral intention between the 2 groups, reflected by participants' attitudes and beliefs about care seeking for AMI measured using the Acute Coronary Syndrome Response Index-Chinese version. The secondary outcome was AMI knowledge.

RESULTS

Six hundred and eight participants (mean [SD] age, 67.2 [8.3] years; 469 [77.1%] male) were randomized to either the narrative-based psychoeducation group (n = 304) or the didactic education group (n = 304). The psychoeducational intervention group reported greater positive changes than the control group in their attitudes (β = -1.053 [95% CI, -1.714 to -0.391]; P < .001) and beliefs (β = -0.686 [95% CI, -1.354 to -0.180]; P = .04) toward care seeking at the 3-month follow-up, and the difference was sustained at 12 months for both attitudes (β = -0.797 [95% CI, -1.477 to -0.117]; P = .02) and beliefs (β = -0.692 [95% CI, -1.309 to -0.012]; P = .047). There were no significant differences in AMI knowledge between the 2 study groups at the 3-month and 12-month time points.

CONCLUSIONS AND RELEVANCE

The results of this randomized clinical trial found that a novel approach of narrative-based psychoeducation was effective in improving patients' behavioral intention to seek care for AMI symptoms. Longer-term follow-up to evaluate actual care-seeking behavior and clinical outcomes in patients with AMI is warranted to determine the sustained effects of this intervention.

TRIAL REGISTRATION

ChiCTR Identifier: ChiCTR-IIC-17010576.

Surviving to Acute Myocardial Infarction: The Role of Psychological Factors and Alexithymia in Delayed Time to Searching Care: A Systematic Review

The time from symptom onset to reperfusion is a critical determinant of myocardial salvage and clinical outcomes in patients with acute myocardial infarction (AMI). This time period could be delayed if people do not seek help promptly and/or if the health system is not efficient in responding quickly and attending to these individuals. The aim of this study was to identify psychological factors associated with pre-hospital delay (PHD) or patients' decisional delay (PDD) in people with an ongoing AMI. A search in PubMed/Medline from 1990 to 2021 with the keywords "pre-hospital delay" OR "prehospital delay" OR "patient delay" OR "decisional delay" OR "care seeking behavior" AND "psychological factors" OR "alexithymia" AND "myocardial infarction" was performed. Thirty-six studies were included, involving 10.389 patients. Wrong appraisal, interpretation and causal beliefs about symptoms, denial of the severity of the symptoms and high levels of alexithymia were found related to longer PHD or PDD. Alexithymia may be an overarching construct that explains the disparate findings of the studies exploring the role of psychological factors in PHD or PDD. Further studies are needed in order to analyse the role of alexithymia in patients with risk factors for AMI to prevent delay.

A modeling-based narrative intervention to promote timely care-seeking in patients with acute myocardial infarction: A pilot randomized controlled trial and feasibility analysis

BACKGROUND

Prolonged delay in seeking medical attention for acute myocardial infarction persists as a global phenomenon, which limits effective disease management. The effects of previous mass-media campaigns and psycho-educations have been minimal.

AIMS

This study aimed to develop a modeling-based narrative intervention, and to examine its feasibility and preliminary effects on care-seeking behavioral intention in Chinese acute myocardial infarction patients.

METHODS

The modeling-based narrative intervention was developed by integrating updated research evidence and participants' perspectives. Ten patients were invited to co-design the intervention. The narrative approach was adopted to engage patients in a mental rehearsal of the decision-making process through a virtual acute myocardial infarction attack experience. A pilot randomized controlled trial was adopted to examine the feasibility and preliminary effects of this intervention.

RESULTS

A total of 67 participants were randomly allocated to receive either the modeling-based narrative intervention ( n=34) or didactic education ( n=33). The intervention was feasible and well-accepted by the participants as evidenced by high attendance and participant satisfaction. They considered the intervention as informative and interesting. The majority of the participants in the intervention group expressed that they enjoyed the intervention. Although the preliminary data showed non-significant between-group differences, a more prominent improving trend for acute myocardial infarction knowledge, care-seeking attitudes and beliefs in the intervention group were evident.

CONCLUSIONS

This study is the first of its kind to adopt a novel narrative approach to optimize care-seeking behaviors among patients with acute myocardial infarction. The preliminary findings showed that this approach was highly feasible and accepted by patients.

Predictors of pre-hospital delay in Hong Kong Chinese patients with acute myocardial infarction

BACKGROUND

The pre-hospital delay to seek care remains the most significant barrier for effective management of acute myocardial infarction. Many of the previous studies mainly took place in Western countries. Few data are available about the care-seeking behavior of Hong Kong Chinese.

AIM

The purpose of this study was to identify the predictors of pre-hospital delay in care seeking among Hong Kong Chinese patients with acute myocardial infarction.

METHODS

Adult Chinese patients ( n=301) with a confirmed diagnosis of acute myocardial infarction were recruited from the cardiac units of three regional hospitals in Hong Kong. Various socio-demographic, clinical, symptom presentation characteristics and patient perceptual factors were considered as potential predictors. Multivariate analysis was conducted to identify the independent predictors with pre-hospital delay in care-seeking among acute myocardial infarction patients.

RESULTS

Perceived barriers to care seeking constituted the most significant predictor for longer pre-hospital delay in acute myocardial infarction patients. Female gender was also significant in predicting longer delay, whereas a greater extent of symptom congruence and a greater extent of typical symptom presentation were significantly associated with a shorter delay. The final model accounted for 49.6% of the variance in pre-hospital delay as a whole.

CONCLUSION

The most prominent predictors of pre-hospital delay are modifiable in nature, including the perceived barriers to care seeking and symptom congruence. Other sociodemographic and clinical factors also influence patients' decision. Although these are non-modifiable, our findings provide important insight for educating high-risk individuals.