Posttraumatic Stress Disorder Following Myocardial Infarction: A Systematic Review

Identifying Health Literacy Strengths and Needs Among Jordanian Acute Myocardial Infarction Patients

Acute myocardial infarction is a significant health issue, particularly in Jordan where ischemic heart disease is the leading cause of death. Effective management of acute myocardial infarction is essential to mitigate its consequences. Although health literacy is crucial for the successful management of acute myocardial infarction, research about the strengths and needs of health literacy among acute myocardial infarction patients is still limited. This study was conducted to identify the health literacy strengths and needs of Jordanian acute myocardial infarction patients using cluster analysis. A cross-sectional design was used to conduct this study in a sample of acute myocardial infarction patients in Jordan (N = 114). A demographics questionnaire and the Health Literacy Questionnaire were used to collect the data. Data analysis was performed using hierarchical cluster analysis using Ward's method. Seven distinct clusters of acute myocardial infarction patients were identified, each characterized by unique health literacy profiles and sociodemographic characteristics. Cluster 7 had the highest health literacy scores across all nine Health Literacy Questionnaire scales. Sociodemographic factors such as age, education level, and gender influenced health literacy levels, with female, younger, more educated patients exhibiting higher health literacy. Through identifying the specific strengths and needs, this research provides a foundation for developing targeted health literacy interventions for acute myocardial infarction patients. Improving health literacy among acute myocardial infarction patients can enhance their ability to manage their health and potentially reduce the complications associated with acute myocardial infarction.

Post-traumatic stress disorder among heart disease patients: a clinical follow-up of individuals with myocardial infarction in the Tromsø Study

BACKGROUND

Myocardial infarction is likely to be experienced as a life-threatening and potentially traumatic event. Approximately one-third of patients with myocardial infarction experience clinically significant symptoms of anxiety/depression. However, it is unclear how many of these patients experience these symptoms because of post-traumatic stress disorder (PTSD). We conducted a clinical screening of individuals with a confirmed myocardial infarction diagnosis. Our goal was to examine the prevalence of PTSD in myocardial infarction patients and study how PTSD symptoms were associated with exposure to potentially traumatic events.

METHOD

This is epidemiological research with a cross-sectional design following up participants from the Tromsø Study with a confirmed diagnosis of myocardial infarction. We sent invitations to participants in the Tromsø Study with clinically significant self-reported anxiety or depression symptoms following myocardial infarction. A cross-sectional sample of N = 79 participants (61 men and 18 women) was collected. During an interview, participants completed the Stressful Life Events Screening Questionnaire and the PTSD checklist PCL-5.

RESULTS

We found nine participants (11.6%) with probable PTSD. This was significantly higher than the postulated population prevalence in Norway (p < 0.015). We found no direct association between myocardial infarction as illness trauma and symptom levels (p = 0.123). However, we found a significant linear trend (p = 0.002), indicating that symptom severity increased proportionately as the number of post-traumatic events increased.

CONCLUSION

PTSD prevalence in myocardial infarction patients was related to lifetime exposure to traumatic events, not the myocardial infarction event alone. More research is required to examine the interaction between myocardial infarction and PTSD. Clinicians should be aware that anxiety or depression symptoms after MI could be secondary symptoms of PTSD.

Positive psychosocial factors and the development of symptoms of depression and posttraumatic stress symptoms following acute myocardial infarction

Introduction

Acute myocardial infarction (MI) is a potentially fatal condition, leading to high psychological distress and possibly resulting in the development of depressive symptoms and posttraumatic stress symptoms (PTSS). The aim of this study was to investigate the association of clusters of positive psychosocial factors (resilience, task-oriented coping, positive affect and social support) with both MI-induced depressive symptoms and PTSS, independent of demographic factors.

Methods

We investigated 154 consecutive patients with MI, 3 and 12 months after hospital discharge. All patients completed the short version of the German Resilience Scale, the Coping Inventory for Stressful Situations (CISS), the Enriched Social Support Inventory (ESSI) and the Global Mood Scale (GMS). The level of interviewer-rated MI-induced posttraumatic stress disorder (PTSD) symptoms at 3- and 12-months follow-up was evaluated through the Clinician-Administered PTSD Scale (CAPS). Depressive symptoms were assessed at 3- and 12-month follow-up with the Beck Depression Inventory (BDI-II).

Results

Three different clusters were revealed: (1) lonely cluster: lowest social support, resilience and average task-oriented coping and positive affect; (2) low risk cluster: highest resilience, task-oriented coping, positive affect and social support; (3) avoidant cluster: lowest task-oriented coping, positive affect, average resilience and social support. The clusters differed in depressive symptoms at 3 months (F = 5.10; p < 0.01) and 12 months follow-up (F = 7.56; p < 0.01). Cluster differences in PTSS were significant at 3 months (F = 4.78, p < 0.05) and 12 months (F = 5.57, p < 0.01) follow-up. Differences in PTSS subscales were found for avoidance (F = 4.8, p < 0.05) and hyperarousal (F = 5.63, p < 0.05), but not re-experiencing, at 3 months follow-up. At 12 months follow-up, cluster differences were significant for re-experiencing (F = 6.44, p < 0.01) and avoidance (F = 4.02, p < 0.05) but not hyperarousal.

Discussion

The present study contributes to a better understanding of the relationships among different positive psychosocial factors, depressive symptoms and PTSS following acute MI. Future interventions may benefit from taking into account positive psychosocial factors to potentially reduce patients' depressive symptoms and PTSS after MI.

Role of Heart Rate Variability in the Association between Myocardial Infarction Severity and Post-Myocardial Infarction Distress

OBJECTIVE

Myocardial infarction (MI) results in mental health consequences, including depression and post-traumatic stress disorder (PTSD). The risk and protective factors of such mental consequences are not fully understood. This study examined the relation between MI severity and future mental health consequences and the moderating role of vagal nerve activity.

METHODS

In a reanalysis of data from the Myocardial Infarction-Stress Prevention Intervention (MI-SPRINT) study, 154 post-MI patients participated. MI severity was measured by the Killip Scale and by troponin levels. Depression and PTSD symptoms were assessed with valid questionnaires, both at 3 and 12 months. Vagal nerve activity was indexed by the heart rate variability (HRV) parameter of the root-mean square of successive R-R differences (RMSSD). Following multivariate analyses, the association between MI severity and distress was examined in patients with low and high HRV (RMSSD = 30 ms).

RESULTS

In the full sample, the Killip index predicted post-MI distress only at 3 months, while troponin predicted distress at 3- and 12-months post-MI. However, HRV moderated the effects of the Killip classification; Killip significantly predicted symptoms of depression and PTSD at 3- and 12-months post-MI, but only in patients with low HRV. Such moderation was absent for troponin.

CONCLUSION

MI severity (Killip classification) predicted post-MI depression and PTSD symptoms, but only in patients with low HRV, suggesting that the vagal nerve is a partial protective (moderating) factor in the relation between Killip score and post-MI distress.

Prevalence of posttraumatic stress disorder following acute coronary syndrome and clinical characteristics of patients referred to cardiac rehabilitation

BACKGROUND

Studies have demonstrated that patients who have experienced acute coronary syndrome (ACS) have an increased risk of developing posttraumatic stress disorder (PTSD) and experiencing worse survival outcomes than those who do not develop PTSD. Nevertheless, the prevalence rates of PTSD following ACS vary widely across studies, and it is noteworthy that in most cases, the diagnosis of PTSD was based on self-report symptom questionnaires, rather than being established by psychiatrists. Additionally, the individual characteristics of patients who develop PTSD after ACS can differ widely, making it difficult to identify any consistent patterns or predictors of the disorder.

AIM

To investigate the prevalence of PTSD among a large sample of patients undergoing cardiac rehabilitation (CR) after ACS, as well as their characteristics in comparison to a control group.

METHODS

The participants of this study are patients who have experienced ACS with or without undergoing percutaneous coronary intervention and are enrolled in a 3-wk CR program at the largest CR center in Croatia, the Special Hospital for Medical Rehabilitation Krapinske Toplice. Patient recruitment for the study took place over the course of one year, from January 1, 2022, to December 31, 2022, with a total of 504 participants. The expected average follow-up period for patients included in the study is about 18 mo, and currently ongoing. Using self-assessment questionnaire for PTSD criteria and clinical psychiatric interview, a group of patients with a PTSD diagnosis was identified. From the participants who do not have a PTSD diagnosis, patients who would match those with a PTSD diagnosis in terms of relevant clinical and medical stratification variables and during the same rehabilitation period were selected to enable comparability of the two groups.

RESULTS

A total of 507 patients who were enrolled in the CR program were approached to participate in the study. Three patients declined to participate in the study. The screening PTSD Checklist-Civilian Version questionnaire was completed by 504 patients. Out of the total sample of 504 patients, 74.2% were men (n = 374) and 25.8% were women (n = 130). The mean age of all participants was 56.7 years (55.8 for men and 59.1 for women). Among the 504 participants who completed the screening questionnaire, 80 met the cutoff criteria for the PTSD and qualified for further evaluation (15.9%). All 80 patients agreed to a psychiatric interview. Among them, 51 patients (10.1%) were diagnosed with clinical PTSD by a psychiatrist according to Diagnostic and Statistical Manual of Mental Disorders criteria. Among the variables analyzed, there was a noticeable difference in the percentage of theoretical maximum achieved on exercise testing between the PTSD and non-PTSD groups. Non-PTSD group achieved a significantly higher percentage of their maximum compared to the PTSD group (P = 0.035).

CONCLUSION

The preliminary results of the study indicate that a significant proportion of patients with PTSD induced by ACS are not receiving adequate treatment. Furthermore, the data suggest that these patients may exhibit reduced physical activity levels, which could be one of the possible underlying mechanisms in observed poor cardiovascular outcomes in this population. Identifying cardiac biomarkers is crucial for identifying patients at risk of developing PTSD and may derive benefits from personalized interventions based on the principles of precision medicine in multidisciplinary CR programs.

Lifetime posttraumatic stress disorder as a predictor of mortality: a systematic review and meta-analysis

BACKGROUND

Posttraumatic Stress Disorder (PTSD) could potentially increase the risk of mortality, and there is a need for a meta-analysis to quantify this association. This study aims to determine the extent to which PTSD is a predictor of mortality.

METHODS

EMBASE, MEDLINE, and PsycINFO were searched systematically on 12th February 2020, with updated searches conducted in July 2021, and December 2022 (PROSPERO CRD42019142971). Studies involving community-dwelling participants with a diagnosis of PTSD or PTSD symptoms, and a comparator group of individuals without PTSD, and which assessed mortality risk, were included. A random-effects meta-analysis was conducted on studies reporting Odds Ratio (OR), Hazard Ratio (HR), and Risk Ratio (RR), and subgroup analysis was also performed by age, sex, type of trauma experienced, PTSD diagnosis, and cause of death.

RESULTS

A total of 30 eligible studies of mostly good methodological quality were identified, with a total of more than 2.1 million participants with PTSD. The majority of studies involved male-dominated, veteran populations. PTSD was associated with a 47% (95% CI: 1.06-2.04) greater risk of mortality across six studies that reported OR/RR, and a 32% increased risk across 18 studies which reported time to death (HR: 1.32, 95% CI: 1.10-1.59). There was very high study heterogeneity (I² > 94%) and this was not explained by the prespecified subgroup analysis.

CONCLUSION

PTSD is associated with increased mortality risk, however further research is required amongst civilians, involving women, and in individuals from underdeveloped countries.

Management of emotional distress following a myocardial infarction: a qualitative content analysis

Myocardial infarction (MI) is one of the leading causes of mortality and disability worldwide. Emotional distress, such as anxiety and depression, are common among MI patients. The aim of this study was to investigate emotional reactions following MI and to explore how MI patients self-manage their emotional distress using the perspective of an explanatory behavioural model of depression and anxiety. Written testimonies from 92 MI patients starting an internet-based cognitive behavioural therapy (iCBT) were analysed using qualitative content analysis with a mixed deductive and inductive approach. Six themes were identified. The first three highlight the emotional reactions post-MI: Hypoarousal reactions and low mood; Hyperarousal reactions; and A changed sense of self and outlook on life. The following three themes describe strategies for managing emotional distress: Avoidance of potentially rewarding situations; Avoidance of heart relevant stimuli triggering anxiety; and Engaging in potentially positive activities and acceptance. The MI experience may trigger emotional reactions, with a particular emphasis on heart-focused anxiety, depression and a shift in the perception of one's identity. Patients tend to manage emotional distress through social withdrawal and experiential avoidance which likely maintains the distress. Applying a behavioural model to the management of emotional distress following MI is suited.

Comment on von Känel et al. Early Trauma-Focused Counseling for the Prevention of Acute Coronary Syndrome-Induced Posttraumatic Stress: Social and Health Care Resources Matter. J. Clin. Med. 2022, 11, 1993

Posttraumatic stress disorder (PTSD) is a debilitating disorder, and it is known that it can be triggered by acute coronary syndrome (ACS). Patients with ACS-induced PTSD have an increased risk of recurrent adverse cardiovascular events and mortality. This is still an insufficiently recognized subgroup of patients among clinicians that could benefit from specific therapeutic and rehabilitation approaches.

Impact of the mindfulness-based psychoeducation applied to people having a myocardial infarction on mindfulness and posttraumatic growth

AIM

This study aimed to examine the effect of mindfulness-based psychoeducation provided t individuals with previous myocardial infarction on their posttraumatic growth and mindfulness levels.

DESIGN AND METHODS

The sample of this study, which was quasi-experimental with a pre-test posttest follow-up pattern, consisted of 50 patients, 25 in the intervention group and 25 in the control group. The mindfulness-based psychoeducation lasted a total of 8 weeks.

FINDINGS

The mindfulness-based psychoeducation program strongly affected the mindfulness levels of the individuals with previous myocardial infarction in the intervention group, but only partially affected their posttraumatic growth.

APPLICATION INFERENCES

Mindfulness-based psychoeducation can be used to support mindfulness and posttraumatic growth in individuals who have suffered a myocardial infarction.

Perceived posttraumatic growth in cardiac patients: A systematic scoping review

Despite the life-threatening nature of many cardiac conditions, patients often report perceived posttraumatic growth (PPTG) in their recovery. To date, this research remains scattered across the literature, and no systematic review across cardiac patient populations is available. To understand the state of the literature on PPTG in cardiac patients, we conducted a systematic scoping review, aiming to (a) describe patient populations included, (b) characterize associations between PPTG and mental and physical health indices, (c) identify potential psychosocial resources that moderate or mediate the effects of a cardiac condition on PPTG, and (d) describe and critique study methodologies. A systematic search was conducted on June 21, 2021, using the PubMed and PsycInfo databases. Two authors independently screened the results for eligibility and resolved discrepancies before extracting study data. We identified 21 studies that met the search and eligibility criteria (i.e., original, peer-reviewed, English language). Most studies focused on a single cardiac condition (61.9%), with myocardial infarction the most common. PPTG was studied in relation to myriad mental health and physical health indices. The findings suggested that appraisal and coping may mediate and psychosocial resources (e.g., social support) may moderate the effects of a cardiac condition on PPTG. The generalizability of results is limited, as most studies employed a cross-sectional design with mostly male and majority White samples. Future research would benefit from studying PPTG in more diverse cardiac populations, assessing appraisals of the cardiac condition as traumatic, measuring posttraumatic depreciation in tandem with PPTG, and conducting prospective studies.

The prevalence of acute stress disorder after acute myocardial infarction and its psychosocial risk factors among young and middle-aged patients

Young and middle-aged people are vulnerable to developing acute stress disorder (ASD) following acute myocardial infarction (AMI). This study aims to explore the factors that contribute to ASD in young and middle-aged AMI patients. 190 AMI patients aged 18 to 60 years were enrolled in this study. We assessed the association between ASD and demographic data, adult attachment, and social support. This study examined a total of 190 young and middle-aged people. Among them, 65 participants were diagnosed with ASD, representing a 34.21% positive rate. Multivariate stepwise regression showed that adult attachment, infarct-related artery, social support, in-hospital complications are the main factors affecting ASD. Path analysis showed that social support had mediated the relationship between adult attachment and ASD. The incidence of ASD in young and middle-aged patients with AMI is high. Social support plays an important role in adult attachment and ASD relationships. Adult attachment and social support should be incorporated into post-traumatic cardiac rehabilitation to help patients cope with traumatic occurrences.

Prospective association between pro-inflammatory state on admission and posttraumatic stress following acute coronary syndrome

OBJECTIVE

The traumatic experience of acute coronary syndrome (ACS) may induce symptoms of posttraumatic stress disorder (PTSD). We examined whether the ACS-triggered acute inflammatory response predicts the development of PTSD symptoms.

METHOD

Study participants were 70 patients (all Caucasian, 80% male, mean age 59 years) with myocardial infarction (MI) during the acute treatment phase. Interleukin (IL)-1β, IL-6, tumor necrosis factor (TNF)-α, IL-4, IL-10, and transforming growth factor (TGF)-1β were determined in plasma collected within 48 h of hospital admission. Participants self-assessed the severity of ACS-induced PTSD symptoms with the 17-item Posttraumatic Diagnostic Scale at 12 months.

RESULTS

There was a significant positive association of the pro-inflammatory index (added standardized z-scores of pro-inflammatory cytokines IL-1β, IL-6, and TNF-α) with total PTSD symptom severity (ΔR² = 0.050, p = .029) and re-experiencing symptoms (ΔR² = 0.088, p = .008), but not avoidance/numbing and hyperarousal symptoms. Analyses were adjusted for the anti-inflammatory index (added standardized z-scores of IL-4, IL-10, and TGF-β1), trauma-focused counseling, sex, age, time since pain onset, troponin, body mass index, and distress during MI. Results were robust when the anti-inflammatory index was removed from the model. Additional analyses showed significant associations of both the net-inflammatory index (i.e., pro-inflammatory index minus anti-inflammatory index) and IL-1β with total PTSD symptom severity, re-experiencing, and hyperarousal symptoms (ΔR² between 0.042 and 0.090) and of IL-1β with avoidance/numbing symptoms (ΔR² = 0.050).

CONCLUSIONS

The findings suggest an association between the pro-inflammatory state launched during ACS and the development of PTSD symptoms. Increased IL-1β may play a particular role in the pathophysiology of ACS-induced PTSD symptoms.

Quality of Life After Myocardial Infarction as a Function of Temperamental Traits, Stress Coping Styles, and Posttraumatic Stress Disorder Symptoms

The presented study aims to explore the relationship between quality of life after myocardial infarction and factors such as temperamental traits, stress coping, and posttraumatic stress disorder (PTSD) symptoms. Ninety-six participants, including 51 females and 45 males aged 24-85 years, who have survived ST-elevation myocardial infarction were asked to complete the Formal Characteristics of Behavior-Temperament Inventory, Coping Inventory for Stressful Situations, PTSD Inventory, and Quality of Life SF-36 questionnaire. According to the obtained results, a lower level of briskness and sensory sensitivity, as well as a higher level of perseverance and endurance, correlates with a higher level of emotion-oriented coping, whereas a higher level of perseverance, endurance, and activity correlates with a higher level of avoidant-distracted coping. Moreover, a higher level of briskness and activity is correlated with a higher level of avoidant-social coping. A higher level of emotion-oriented and avoidant-distracted coping is, in turn, associated with a higher intensity of PTSD symptoms, whereas a higher level of avoidant-social coping correlates with lower intensity of PTSD symptoms. Furthermore, a higher level of avoidant-distracted coping is correlated to a better physical quality of life, whereas higher levels of endurance and activity are associated with a better emotional quality of life. Also, the more severe the PTSD symptoms, the lower quality of life in general. Contrastingly, higher sensory sensitivity and briskness correlate with better quality of life. The meaning of other temperamental traits, however, is more ambiguous. Nevertheless, the findings support the model of psychological processes in which the subsequent stages are temperament, coping, PTSD, and quality of life.

Broken Heartstrings—Post-Traumatic Stress Disorder and Psychological Burden after Acute Mitral Regurgitation Due to Chordae Tendineae Rupture

Chordae tendineae rupture (CTR) is a potentially life-threatening cardiac event often resulting in Acute mitral regurgitation (AMR). We assessed Post-traumatic stress disorder (PTSD), depression, and anxiety symptoms in n=21 CTR patients with AMR (age 82.3 ± 4.2 years; 66.7% men) and compared them to n=23 CTR patients with Chronic mitral regurgitation (CMR) and n=35 Myocardial infraction (MI) patients. Regression analyses revealed that PTSD scores were significantly higher in CTR patients with AMR than in CTR patients with CMR or MI patients. CTR patients with CMR had the lowest levels of PTSD-symptoms. Depression and anxiety scores were elevated across all three groups. Our results suggest that psychosocial factors need to be considered in CTR patients’ care.