Posttraumatic stress and depressive symptoms characterize cardiac arrest survivors' perceived recovery at hospital discharge

Associations between Post-Intensive Care Syndrome Domains in Cardiac Arrest Survivors and Their Families One Month Post-Event

Background: Post-intensive care syndrome (PICS) affects many critical care survivors and family members. Nevertheless, the relationship between PICS-relevant domains in cardiac arrest (CA) survivors and psychological distress in their family members (henceforth, PICS-F) remains underexplored. Methods: We enrolled consecutive CA patients admitted between 16 August 2021 and 28 June 2023 to an academic medical center, along with their close family members, in prospective studies. Survivors' PICS domains were: physical dependence (Physical Self-Maintenance Scale, PSMS), cognitive impairments (Modified Telephone Interview for Cognitive Status, TICS-M), and post-traumatic stress disorder (PTSS) symptoms (PTSD Checklist-PCL 5), as well as PICS-F (PCL-5 Total Score). Hierarchical multivariate linear regressions examined associations between PICS-F and survivors' PICS domains. Results: Of 74 dyads (n = 148), survivors had a mean (SD) age of 56 ± 16 years, with 61% being male and with a median hospital stay of 28 days. Family members (43% spouses) were slightly younger (52 ± 14 years), predominantly female (72%), and of minority race/ethnicity (62%). A high prevalence of PICS assessed 28.5 days (interquartile range 10-63) post-CA was observed in survivors (78% physical dependence, 54% cognitive impairment, 30% PTSS) and in family members (30% PTSS). Survivor PTSS was significantly associated with family member distress (β = 0.3, p = 0.02), independent of physical dependence (β = 0.0, p = 0.9), cognitive impairment (β = -0.1, p = 0.5), family member characteristics, and duration of hospitalization. Conclusions: Both CA survivors and their family members showed substantial evidence of likely PICS. Survivor PTSS is notably associated with family member distress, highlighting the need for dyadic interventions to enhance psychosocial outcomes.

Sex-specific health-related quality of life in survivors of cardiac arrest

Survival after out-of-hospital cardiac arrest (OHCA) remains low, although the number of survivors is increasing, and survivors are living longer. With increasing long-term survival, there is a need to understand health-related quality of life (HRQoL) measures. Although there are current recommendations for measuring HRQoL in OHCA survivors, there is significant heterogeneity in assessment timing and the measurement tools used to quantify HRQoL outcomes, making the interpretation and comparison of HRQoL difficult. Identifying groups of survivors of OHCA with poor HRQoL measures could be used for targeted intervention studies. Sex differences in OHCA resuscitation characteristics, post-cardiac arrest treatment, and short-term survival outcomes are well-documented, although variability in study methods and statistical adjustments appear to affect study results and conclusions. It is unclear whether sex differences exist in HRQoL among OHCA survivors and if study methods and statistical adjustment for patient characteristics or arrest circumstances impact the results. In this narrative review article, we provide an overview of the assessment of HRQoL and the main domains of HRQoL. We summarize the literature regarding sex differences in HRQoL in OHCA survivors. Few multivariable-adjusted studies reported HRQoL sex differences and there was significant heterogeneity in study size, timing of assessment, and domains measured and reported. What is reported suggests females have worse HRQoL than males, especially in the domains of physical function and mental health, but results should be interpreted with caution. Lastly, we discuss the challenges of a non-uniform approach to measurement and future directions for assessing and improving HRQoL in OHCA survivors.

A shift towards targeted post-ICU treatment: Multidisciplinary care for cardiac arrest survivors

Intensive Care Unit (ICU) survivorship comprises a burgeoning area of critical care medicine, largely due to our improved understanding of and concern for patients' recovery trajectory, and efforts to mitigate the post-acute complications of critical illness. Expansion of care beyond hospitalization is necessary, yet evidence for post-ICU clinics remains limited and mixed, as both interventions and target populations studied to date are too heterogenous to meaningfully demonstrate efficacy. Here, we briefly present the existing evidence and limitations related to post-ICU clinics, identify cardiac arrest survivors as a unique ICU subpopulation warranting further investigation and treatment, and propose a clinical framework that addresses the multifaceted needs of this well-defined patient population.

Emotional distress, social support, and functional dependence predict readiness for hospital discharge in a prospective sample of cognitively intact cardiac arrest survivors

AIM

To inform screening, referral and treatment initiatives, we tested the hypothesis that emotional distress, social support, functional dependence, and cognitive impairment within 72 hours prior to discharge predict readiness for discharge in awake and alert cardiac arrest (CA) survivors.

METHODS

This was a secondary analysis of a prospective single-center cohort of CA survivors enrolled between 4/2021 and 9/2022. We quantified emotional distress using the Posttraumatic Stress Disorder Checklist-5 and PROMIS Emotional Distress - Anxiety and Depression Short Forms 4a; perceived social support using the ENRICHD Social Support Inventory; functional dependence using the modified Rankin Scale; and cognitive impairment using the Telephone Interview for Cognitive Status. Our primary outcome was readiness for discharge, measured using the Readiness for Hospital Discharge Scale. We used multivariable linear regression to test the independent association of each survivorship factor and readiness for discharge.

RESULTS

We included 110 patients (64% male, 88% white, mean age 59 [standard deviation ± 13.1 years]). Emotional distress, functional dependence, and social support were independently associated with readiness for discharge (adjusted β's [absolute value]: 0.25-0.30, all p < 0.05).

CONCLUSIONS

Hospital systems should consider implementing routine in-hospital screening for emotional distress, social support, and functional dependence for CA survivors who are awake, alert and approaching hospital discharge, and prioritize brief in hospital treatment or post-discharge referrals.

Protective positive psychology factors and emotional distress after cardiac arrest

BACKGROUND

There is a critical need to identify factors that can prevent emotional distress post-cardiac arrest (CA). CA survivors have previously described benefitting from utilizing positive psychology constructs (mindfulness, existential well-being, resilient coping, social support) to cope with distress. Here, we explored associations between positive psychology factors and emotional distress post-CA.

METHODS

We recruited CA survivors treated from 4/2021-9/2022 at a single academic medical center. We assessed positive psychology factors (mindfulness [Cognitive and Affective Mindfulness Scale-Revised], existential well-being [Meaning in Life Questionnaire Presence of Meaning subscale], resilient coping [Brief Resilient Coping Scale], perceived social support [ENRICHD Social Support Inventory]) and emotional distress (posttraumatic stress [Posttraumatic Stress Checklist-5], anxiety and depression symptoms [PROMIS Emotional Distress - Anxiety and Depression Short Forms 4a]) just before discharge from the index hospitalization. We selected covariates for inclusion in our multivariable models based on an association with any emotional distress factor (p < 0.10). For our final, multivariable regression models, we individually tested the independent association of each positive psychology factor and emotional distress factor.

RESULTS

We included 110 survivors (mean age 59 years, 64% male, 88% non-Hispanic White, 48% low income); 36.4% of survivors scored above the cut-off for at least one measure of emotional distress. In separate adjusted models, each positive psychology factor was independently associated with emotional distress (β: -0.20 to -0.42, all p < 0.05).

CONCLUSIONS

Higher levels of mindfulness, existential well-being, resilient coping, and perceived social support were each associated with less emotional distress. Future intervention development studies should consider these factors as potential treatment targets.

The prevalence of anxiety and depression in cardiac arrest survivors: A systematic review and meta-analysis

OBJECTIVE

This systematic review aimed to identify the prevalence of anxiety and depression in cardiac arrest (CA) survivors.

METHODS

A systematic review and network meta-analysis was performed on observational studies in adult cardiac arrest survivors with psychiatric disorders from PubMed, Embase, Cochrane Library and Web of Science. In the meta-analysis, we combined the prevalence quantitatively and analyzed the subgroup based on the classification indexes.

RESULTS

We identified 32 articles that met the inclusion criteria. Regarding anxiety,the pooled prevalence was 24% (95% CI, 17-31%) and 22% (95% CI, 13-26%) in short-term and long-term respectively. The subgroup analysis showed that the pooled incidence in in-hospital cardiac arrest (IHCA) and out-of-hospital cardiac arrests (OHCA) survivors was 14.0% (95%CI, 9.0-20.0%) and 28.0% (95%CI, 20.0-36.0%) for short-term anxiety.The incidence of anxiety measured by, Hamilton Anxiety Rating Scale(HAM-A) and State-Trait Anxiety Inventory(STAI) was higher than other tools(P < 0.01). Regarding depression,the data analysis showed that the pooled incidence of short-term and long-term depression was 19% (95% CI, 13-26%) and 19% (95% CI, 16-25%), respectively. The subgroup analysis showed that the incidence of short-term and long-term depression was 8% (95% CI, 1-19%) and 30% (95% CI, 5-64%) for IHCA survivors, and was 18% (95% CI, 11-26%) and 17% (95% CI, 11-25%) for OHCA survivors. The incidence of depression measured by Hamilton Depression Rating Scale(HDRS) and Symptom check list-90(SCL-90) was higher than other assessment tools(P < 0.01).

CONCLUSIONS

The meta-analysis indicated a high prevalence of anxiety and depression in CA survivors, and those symptoms persisted 1 year or more after CA. Evaluation tool is an important factor affecting the measurement results.

Post-Cardiac Arrest: Mechanisms, Management, and Future Perspectives

Cardiac arrest is an important public health issue, with a survival rate of approximately 15 to 22%. A great proportion of these deaths occur after resuscitation due to post-cardiac arrest syndrome, which is characterized by the ischemia-reperfusion injury that affects the role body. Understanding physiopathology is mandatory to discover new treatment strategies and obtain better results. Besides improvements in cardiopulmonary resuscitation maneuvers, the great increase in survival rates observed in recent decades is due to new approaches to post-cardiac arrest care. In this review, we will discuss physiopathology, etiologies, and post-resuscitation care, emphasizing targeted temperature management, early coronary angiography, and rehabilitation.

The aftermath of surviving a sudden cardiac arrest for young exercisers - a qualitative study in Norway

BACKGROUND

When surviving a sudden cardiac arrest (SCA), physical, cognitive, and emotional effects of surviving may be present for months or years. The survivors' family and colleagues are also highly affected by the incident. There is little knowledge about experiences of surviving SCA in individuals who prior to the incident were young and reported to exercise regularly. Consequently, the aim of this study was to explore the aftermath of surviving a SCA in young, regular exercisers.

METHODS

The study had a qualitative design, conducting in-depth individual interviews with SCA survivors < 50 years of age reporting to exercise ≥ 5 h/week and/or who suffered SCA during or less than 60 min after exercise. The data were analysed using systematic text condensation in-line with recommendations from Malterud.

RESULTS

18 of 31 eligible participants were included in the study. Through analysis we identified 'Establishing a new everyday life' as superordinate category, with subordinate categories a) being part of my surroundings, b) expecting normality but facing a new reality and c) lucky to be alive!

CONCLUSION

This study adds knowledge about young and regular exercisers' experiences after surviving a SCA. The obligations of everyday life in young survivors of SCA often imply a high work load and complex tasks, e.g. due to being in the beginning of their career or even still studying. Healthcare personnel, as well as the society, need to acknowledge that although lucky to be alive and apparently well-functioning, young survivors of SCA may have persistent challenges that cause frustration and reduced quality of life.

Mindfulness is inversely associated with psychological symptoms in long-term cardiac arrest survivors

Identifying correlates of psychological symptoms in cardiac arrest (CA) survivors is a major research priority. In this longitudinal survey study, we evaluated associations between mindfulness, baseline psychological symptoms, and 1-year psychological symptoms in long-term CA survivors. We collected demographic and CA characteristics at baseline. At both timepoints, we assessed posttraumatic stress symptoms (PTS) through the PTSD Checklist-5 (PCL-5) and depression and anxiety symptoms through the Patient Health Questionnaire-4 (PHQ-4). At follow-up, we assessed mindfulness through the Cognitive and Affective Mindfulness Scale-Revised (CAMS-R). We used adjusted linear regression to predict 1-year PCL-5 and PHQ-4 scores, with particular consideration of the CAMS-R as a cross-sectional correlate of outcome. We included 129 CA survivors (mean age: 52 years, 52% male, 98% white). At 1-year follow-up, in adjusted models, CAMS-R (β: −0.35, p < 0.001) and baseline PCL-5 scores (β: 0.56, p < 0.001) were associated with 1-year PCL-5 scores. CAMS-R (β: −0.34, p < 0.001) and baseline PHQ-4 scores were associated with 1-year PHQ-4 scores (β: 0.37, p < 0.001). In conclusion, mindfulness was inversely associated with psychological symptoms in long-term CA survivors. Future studies should examine the longitudinal relationship of mindfulness and psychological symptoms after CA.

Hyperarousal Symptoms in Survivors of Cardiac Arrest Are Associated With 13 Month Risk of Major Adverse Cardiovascular Events and All-Cause Mortality

BACKGROUND

Key dimensions of cardiac arrest-induced posttraumatic stress disorder (PTSD) symptoms include reexperiencing, avoidance, numbing, and hyperarousal. It remains unknown which dimensions are most predictive of outcome.

PURPOSE

To determine which dimensions of cardiac arrest-induced PTSD are predictive of clinical outcome within 13 months posthospital discharge.

METHODS

PTSD symptoms were assessed in survivors of cardiac arrest who were able to complete psychological screening measures at hospital discharge via the PTSD Checklist-Specific scale, which queries for 17 symptoms using five levels of severity. Responses on items for each symptom dimension of the four-factor numbing model (reexperiencing, avoidance, numbing, and hyperarousal) were converted to Z-scores and treated as continuous predictors. The combined primary endpoint was all-cause mortality (ACM) or major adverse cardiovascular events (MACE; hospitalization for myocardial infarction, unstable angina, heart failure, emergency coronary revascularization, or urgent defibrillator/pacemaker placements) within 13 months postdischarge. Four bivariate Cox proportional hazards survival models evaluated associations between individual symptom dimensions and ACM/MACE. A multivariable model then evaluated whether significant bivariate predictors remained independent predictors of the primary outcome after adjusting for age, sex, comorbidities, premorbid psychiatric diagnoses, and initial cardiac rhythm.

RESULTS

A total of 114 patients (59.6% men, 52.6% white, mean age: 54.6 ± 13 years) were included. In bivariate analyses, only hyperarousal was significantly associated with ACM/MACE. In a fully adjusted model, 1 standard deviation increase in hyperarousal symptoms corresponded to a two-times increased risk of experiencing ACM/MACE.

CONCLUSIONS

Greater level of hyperarousal symptoms was associated with a higher risk of ACM/MACE within 13 months postcardiac arrest. This initial evidence should be further investigated in a larger sample.

Gaps in the Provision of Cognitive and Psychological Resources in Cardiac Arrest Survivors with Good Neurologic Recovery

We aimed to elucidate gaps in the provision of cognitive and psychological resources in cardiac arrest survivors. We conducted an online survey study between October 29, 2019, and November 15, 2019 with cardiac arrest survivors and caregiver members of the Sudden Cardiac Arrest Foundation. We queried survivors as to whether they experienced cognitive or psychological symptoms since their cardiac arrest. Next, we queried both survivors and caregivers on the provision of resources through three metrics: (1) discussions with providers about potential cognitive or psychological symptoms, (2) neurologist or psychologist appointments scheduled by providers, and (3) mental health referrals by providers. We then ran Chi-square goodness-of-fit tests to compare the proportion of survivors and caregivers who reported resource provision (observed values) to the proportion of survivors who reported experiencing cognitive and psychological symptoms, respectively (expected values). We included responses from 167 survivors and 52 caregivers. A total of 73.1% (n = 122) survivors reported experiencing cognitive symptoms and 67.1% (n = 112) psychological symptoms since their cardiac arrest. When compared to these two proportions, provision of resources was significantly lower in all three metrics: (1) fewer discussions with providers about potential for developing cognitive symptoms (31%) and psychological symptoms (26.3%), (2) fewer neurologist appointments scheduled (8.4%) and psychologist appointments scheduled (4.8%), and (3) fewer referrals to mental health (6%). Informal caregivers also reported significantly lower provision of resources in all three metrics, with the exception of discussions about developing cognitive symptoms. Our results suggest that there are discrepancies in the provision of cognitive and psychological resources in cardiac arrest survivors with good neurologic recovery. Systematic referral processes may be needed to standardize resource provision to consistently meet the pervasive cognitive and psychological needs of cardiac arrest survivors.

Associations between posttraumatic stress symptoms and quality of life in cardiac arrest survivors and informal caregivers: A pilot survey study

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About 1 in 4 cardiac arrest survivors showed significant posttraumatic stress.

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Over 1 in 3 informal caregivers showed significant posttraumatic stress.

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Greater posttraumatic stress was associated with worse quality of life.

Aim

To estimate the proportion of significant posttraumatic stress (PTS) in both cardiac survivors with good neurologic recovery and informal caregivers, and to pilot test the hypothesis that greater PTS are associated with worse quality of life (QoL) in both cardiac arrest survivors and informal caregivers of cardiac arrest survivors.

Methods

We distributed an online survey to survivor and caregiver members of the Sudden Cardiac Arrest Foundation. Participants provided demographic and cardiac arrest characteristics and completed the PTSD Checklist-5 (PCL-5), the Lawton Instrumental Activities of Daily Living scale, and the WHOQOL-BREF. We identified covariates through bivariate correlations or linear regressions as appropriate. Six multiple regression models (three each for survivors and caregivers) examined associations between PCL-5 scores with each QoL subscale, adjusted for covariates identified from the bivariate models.

Results

We included 169 survivors (mean months since arrest: 62.8, positive PTS screen: 24.9%) and 52 caregivers (mean months since arrest: 43.2, positive PTS screen: 34.6%). For survivors, the following showed significant bivariate associations with QoL: Lawton scores, daily memory problems, sex, months since arrest, age, and income; for caregivers, months since arrest, age, and income. In adjusted models, greater PCL-5 scores were associated with worse QoL (β: −0.35 to −0.53, p < .05).

Conclusions

Our pilot results suggest that PTS are prevalent years after the initial cardiac arrest and are associated with worse QoL in survivors and informal caregivers. Further study is needed to validate these findings in a larger, representative sample.

Post-traumatic Stress Disorder and Post-traumatic Growth Among Muslim CPR Survivors

The present study was conducted to compare post-traumatic growth (PTG) and post-traumatic stress (PTSD) in CPR survivors in Shia and Sunni. In a cross-sectional study, the results showed that the mean score of PTSD in Sunni (n = 74) was more than that of Shia (n = 89). There was no difference between Shia and Sunni in the mean score of PTG. Regarding the useful role of religion on PTG, the use of religious coping strategies in post-traumatic life-threatening situations can be helpful. It is recommended that further studies be conducted on the cultural, social, and psychological factors affecting PTG and PTSD in different societies.

Prevalence and risk factors for post-traumatic stress disorder in Japanese relatives of out-of-hospital cardiac arrest patients after receiving a pamphlet concerning the grieving process

Aim

To investigate the prospective frequency of post‐traumatic stress disorder (PTSD) among relatives of sudden death patients following provision of a pamphlet explaining the stages of the complicated grief process and self‐regulating techniques.

Methods

From May 2017 to February 2018, we prospectively and consecutively provided a pamphlet to relatives of out‐of‐hospital sudden cardiac arrest victims who failed to obtain spontaneous circulation. We investigated the psychiatric status of the bereaved relatives using the Impact of Event Scale – Revised (IES‐R). An IES‐R score over 24 was defined as PTSD.

Results

Fifty‐four relatives of the 54 dead patients (victims) provided permission of entry to this research. All subjects and victims were Japanese. Among them, 24 subjects had an IES‐R score of 0 and 5 (9.3%) had PTSD approximately 1 month after their bereavement. There were no relatives who received spontaneous psychiatric treatment. The IES‐R scores for non‐medical cardiac arrest, death inquests, and parent variables were significantly higher compared with medical cardiac arrest, no inquest, and no parent, respectively. The IES‐R scores in those who were a child of the victim were significantly lower than in those who were not.

Conclusion

The present study showed that the frequency of PTSD was 9.3% at 1 month following bereavement among Japanese relatives of sudden death victims after an intervention. This frequency was minimal compared with previous reports.

Associations Between Baseline Total PTSD Symptom Severity, Specific PTSD Symptoms, and 3-Month Quality of Life in Neurologically Intact Neurocritical Care Patients and Informal Caregivers

BACKGROUND

The objective is to pilot test the feasibility of assessing severity of posttraumatic stress disorder (PTSD) symptoms, as well as specific lower-order PTSD symptoms, experienced during neurological intensive care unit (neuro-ICU) admission and their relationship with 3-month quality of life (QoL) scores in multiple domains (i.e., physical, psychological, social, and environmental) in both patients and caregivers.

METHODS

Between 2015 and 2016, we enrolled neurologically intact patients and informal caregivers of patients who reported demographics and PTSD symptoms (PTSD Checklist-Specific; PCL-S) during neuro-ICU admission and completed a QoL assessment (World Health Organization Quality of Life; WHOQOL-BREF) 3 months later. Clinical data were extracted from medical records. We ran two bivariate correlation matrices among PTSD symptom dimensions in patients and caregivers. Then, we used multiple linear regression to examine the prospective association of total PCL-S scores with each QoL domain in both patients and caregivers after adjusting for clinically important variables. Next, we explored differential associations between the 4 PTSD symptom dimensions and each QoL domain in both patients and caregivers, adjusting for sex and age.

RESULTS

A total of 70 patients (45.7% women, 84.3% white, mean age 52.08 years) and 64 caregivers (64.1% women, 90.6% white, mean age 53.12 years) were included. PTSD symptom dimensions were moderately strongly correlated among patients (r = 0.65-0.79, p < 0.001) and caregivers (r = 0.55-0.78, p < 0.001). For both patients and caregivers, greater PTSD symptom severity was prospectively associated with lower QoL in all domains (β = - 0.289 to - 0.622; p < 0.05). Our exploratory analysis revealed that greater numbing symptoms were associated with lower psychological QoL in patients (β: - 0.397, p = 0.038), and lower physical (β: - 0.409, p = 0.014), psychological (β: - 0.519, p = 0.001), and social QoL (β: - 0.704, p < 0.001) in caregivers. Greater re-experiencing symptoms were associated with lower physical QoL in both patients (β: - 0.422, p = 0.047) and caregivers (β: - 0.4, p = 0.041).

CONCLUSIONS

Our preliminary results indicated that greater severity of PTSD symptoms, and specifically numbing and re-experiencing symptoms, experienced by patients and caregivers during neuro-ICU admission was predictive of worse 3-month QoL. Continued study is needed to identify treatment targets for PTSD and QoL in this population.

Sudden Cardiac Arrest Survivorship: A Scientific Statement From the American Heart Association

Cardiac arrest systems of care are successfully coordinating community, emergency medical services, and hospital efforts to improve the process of care for patients who have had a cardiac arrest. As a result, the number of people surviving sudden cardiac arrest is increasing. However, physical, cognitive, and emotional effects of surviving cardiac arrest may linger for months or years. Systematic recommendations stop short of addressing partnerships needed to care for patients and caregivers after medical stabilization. This document expands the cardiac arrest resuscitation system of care to include patients, caregivers, and rehabilitative healthcare partnerships, which are central to cardiac arrest survivorship.

Post-traumatic Stress Disorder in Heart Failure Patients: A Test of the Cardiac Disease-induced PTSD Hypothesis

Background:

Post-traumatic stress disorder (PTSD) is prevalent in approximately 12% of patients with cardiovascular disease (CVD) and such patients are at risk of further CVD morbidity and mortality. It is unknown whether CVD patients with cardiac and non-cardiac traumatic events leading to PTSD differ in medical comorbidities and psychiatric vulnerabilities. Our objective was to compare heart failure (HF) patients with cardiac and non-cardiac PTSD.

Method:

A population of HF patients from 3 hospitals underwent a two-step depression and anxiety screening process to identify potential mental health treatment needs. The post-traumatic stress disorder module of the Structured Clinical Interview for DSM-IV Axis-I disorders was used to classify trauma(s) exposure, and other disorders. The patients with PTSD were sub-divided by cardiac related traumas (e.g. myocardial infarction, sudden cardiac arrest) and non-cardiac related traumas (e.g. sexual abuse, interpersonal violence).

Results:

10 patients met criteria for non-cardiac trauma and 18 patients met criteria for cardiacinduced trauma. There were no significant differences in HF aetiology or severity nor cardiac comorbidities. Time since PTSD, onset was significantly longer for those with non-cardiac PTSD. Among psychiatric comorbidities, alcohol and substance abuse disorders, as well as depression were more prevalent in patients with non-cardiac PTSD.

Conclusion:

Cardiac related PTSD was associated with less alcohol and substance abuse disorders, and depression by comparison to their non-cardiac induced PTSD counterparts. Ongoing research is required to establish if cardiac-induced PTSD truly reflects a unique subtype of PTSD, and whether there are different treatment needs and therapeutic approaches for this subtype.

Dimensional structure of posttraumatic stress disorder symptoms after cardiac arrest

BACKGROUND

Considerable evidence suggests that posttraumatic stress disorder (PTSD) is a heterogeneous construct despite often being treated as a homogeneous diagnostic entity. PTSD in response to cardiac arrest is common and may differ from PTSD following other medical traumas. Most patients are amnesic from the cardiac event, and it is unclear if and how certain PTSD symptoms may manifest.

METHODS

We examined the latent structure of PTSD symptoms in 104 consecutive cardiac arrest survivors who were admitted to Columbia University Medical Center. PTSD symptoms were assessed via the PTSD Checklist-Specific at hospital discharge. We performed a confirmatory factor analysis (CFA) to compare 4-factor dysphoria, 4-factor numbing, and 5-factor dysphoric arousal models of PTSD with our data.

RESULTS

The CFA showed that each of the models had good fit. We chose the 4-factor numbing model (χ² (113) = 151.59, p < .01, CFI = 0.94, RMSEA = 0.057, 90% CI: [0.032, 0.081]) as most representative of the data, after considering a between-factor correlation of 0.99 in the 5-factor dysphoric arousal model, and greater fit statistics than the 4-factor dysphoria model.

LIMITATIONS

Certain factors were defined by only two items. Additionally, PTSD was assessed at discharge (median = 21 days); those assessed before 30 days could be displaying symptoms of acute stress disorder.

CONCLUSIONS

Our findings suggest that PTSD symptoms after cardiac arrest are best represented by a 4-factor numbing model of PTSD. PTSD assessment and intervention efforts for cardiac arrest survivors should consider the underlying dimensions of PTSD.

Early interventions to prevent posttraumatic stress disorder symptoms in survivors of life-threatening medical events: A systematic review

Post-traumatic stress disorder (PTSD) induced by life-threatening medical events has been associated with adverse physical and mental health outcomes, but it is unclear whether early interventions to prevent the onset of PTSD after these events are efficacious. We conducted a systematic review to address this need. We searched six biomedical electronic databases from database inception to October 2018. Eligible studies used randomized designs, evaluated interventions initiated within 3 months of potentially traumatic medical events, included adult participants, and did not have high risk of bias. The 21 included studies (N = 4,486) assessed a heterogeneous set of interventions after critical illness (9), cancer diagnosis (8), heart disease (2), and cardiopulmonary surgery (2). Fourteen psychological, 2 pharmacological, and 5 other-type interventions were assessed. Four of the psychological interventions emphasizing cognitive behavioral therapy or meaning-making, 1 other-type palliative care intervention, and 1 pharmacological-only intervention (hydrocortisone administration) were efficacious at reducing PTSD symptoms relative to control. One early, in-hospital counseling intervention was less efficacious at lowering PTSD symptoms than an active control. Clinical and methodological heterogeneity prevented quantitative pooling of data. While several promising interventions were identified, strong evidence of efficacy for any specific early PTSD intervention after medical events is currently lacking.

The impact of psychological distress on long-term recovery perceptions in survivors of cardiac arrest

PURPOSE

To determine the association of depressive and PTSD symptoms with cardiac arrest survivors' long-term recovery perceptions, after accounting for cognitive status, functional independence, and medical comorbidities.

METHODS

Perceived recovery of 78 cardiac arrest survivors at 6-months post-hospital discharge was assessed through the question, "Do you feel that you have made a complete recovery from your arrest?" Psychological symptoms were measured using the Center for Epidemiological Studies-Depression scale (CES-D) and the PTSD Checklist-Specific (PCLS). Logistic regression was utilized to assess the association between psychological symptoms with positive and negative recovery perceptions, adjusting for demographics, cognitive impairment, functional dependence, and medical comorbidities.

RESULTS

At 6 months, 53% of patients (n = 41) had negative recovery perceptions. 32.1% (n = 25) of patients screened for depression and 28.2% (n = 22) for PTSD. Patients with higher CES-D scores were significantly more likely to have negative recovery perceptions in both unadjusted and adjusted analyses (OR: 1.10, 95% CI [1.03, 1.16], p < .01). PCL-S scores were significantly associated with negative recovery perceptions in an unadjusted model (OR: 1.05, 95% CI [1.01, 1.10], p < .01), but not after adjustment of covariates.

CONCLUSIONS

In contrast with cognitive and functional measures, depressive symptoms were strongly associated with cardiac arrest survivors' negative recovery perceptions at 6-months post-discharge.