Shocktivity: ability and avoidance of daily activity behaviors in ICD patients.

BACKGROUND: Implantable cardioverter defibrillator (ICD) shocks terminate potentially life-threatening arrhythmias and may alter patient behavior. Patients are aware of which activities they have the ability to perform, but they may choose to avoid these behaviors after receiving a shock. This study examined ICD patient ability and avoidance of progressively exertive behaviors. METHODS: ICD patients (N = 443) across the United States were surveyed using an online measure including the 12-item Duke Activity Status Index. RESULTS: As expected, many patients reported being unable to participate in more physically exertive activities such as strenuous athletic exertion (68.8%), sex (35.4%), and running a short distance (49.0%). Avoidance rates were also relatively high, as patients who reported being able to participate in these activities also reported avoiding them (ie, strenuous athletics, 76.1%). Similarly, the majority of patients reported ability to engage in sexual activity (64.6%) but many chose to avoid sexual activity (51.0%). Multiple reasons were reported for avoidance, including fear of shock, fear of heart rate increase, doctor instruction, no desire, and an "other" option. CONCLUSION: Many ICD patients experience behavioral limitations because of both a perceived inability and preference to avoid exertive activities, and possibly a prescription to do so, particularly strenuous athletic exertion. Clinical and research attention to ICD patient activity levels and reasons for avoidance may improve daily functioning and help patients return to preimplant levels of activity.

Psychosocial benefits of cardiac rehabilitation among women compared with men.

PURPOSE: Cardiac rehabilitation (CR) has been shown to reduce cardiac risk and improve the psychosocial functioning of participants. This study examines gender differences on several psychosocial indicators across the course of CR. METHODS: Patients (N = 380; 67.9% men and 32.1% women) referred from local inpatient and outpatient settings at a southeastern US academic medical facility were assessed on reported levels of depression, anxiety, panic, anger, and relationship satisfaction, using the Burns Brief Mood Survey, at the start and conclusion of a CR program. Medical variables were also assessed but are not the focus of this report. Statistical analyses included 1-way, Kruskal-Wallis, and repeated-measures analysis of variance procedures, as well as χ analyses. RESULTS: Women reported more psychosocial symptoms at pre-CR than men, and overall, both groups improved across CR. Women with significant depression, anxiety, and panic experienced clinically significant benefit across CR. Although the percentage of men reporting clinically significant levels of anger decreased significantly across CR, clinically significant levels of anger did not significantly change among women. In addition, women did not report benefits in relationship dissatisfaction. CONCLUSION: This study provides further evidence that CR offers psychosocial benefit for women, as has been reported in several small clinical samples. Some notable gender differences on anger and relationship satisfaction were observed. Clinical attention may be warranted to facilitate improvement for symptoms of anger and relationship concerns among selected women who participate in CR.

Assessment of the quality of existing patient educational tools focused on sudden cardiac arrest: a systematic evaluation by the Sudden Cardiac Arrest Thought Leadership Alliance.

BACKGROUND: Conveying contemporary treatment options for those at risk of sudden cardiac arrest (SCA) is challenging. The purpose of the present research was to evaluate the quality and usability of available patient educational tools relevant to SCA and its treatment options, such as implantable cardioverter defibrillators (ICDs). We hypothesized that this review would identify gaps in areas of information for the enhancement of patient education and decision-making materials. METHODS: We used a formal instrument to assess specific domains of content, development, and effectiveness of 18 available SCA and ICD educational tools. The multidisciplinary review panel included two electrophysiologists, two general cardiologists, a cardiac psychologist, a health services researcher, and a patient advocate. RESULTS: Of the 18 education tools, four were rated as "good, may need revisions, but sufficient for use", 12 were rated as "marginal, needs revision prior to use", and two were rated as "poor, inadequate for use". None of the tools were rated as being of "very good" or "excellent" quality. CONCLUSION: There appear to be opportunities to improve the quality and completeness of existing educational tools for patients with SCA and ICD. While many tools have been developed, they fall below current standards for supporting informed medical decision-making.

The Florida Shock Anxiety Scale (FSAS) for patients with implantable cardioverter defibrillators: testing factor structure, reliability, and validity of a previously established measure.

BACKGROUND: The implantable cardioverter defibrillator (ICD) reduces mortality in patients at risk for life-threatening arrhythmias via high energy shock. The Florida Shock Anxiety Scale (FSAS) was developed to measure ICD patient shock-related anxiety. Initial psychometric evaluation revealed good reliability and validity. The purpose of this study was to examine the psychometrics of the FSAS in a large US sample of ICD patients. METHODS: Participants were recruited via e-mail and the survey was completed online. Ultimately, 443 ICD patients (359 male and 421 White) completed the 10-item FSAS. RESULTS: Means for FSAS were comparable to previously published data (M = 15.18, SD = 6.5). Interitem reliability was good (Cronbach's α= 0.89). The FSAS was negatively correlated with single-item measures of emotional well-being (r =-0.378, P < 0.01), sense of security (r =-0.365, P < 0.01), perceived general health (r =-0.185, P < 0.01), and quality of life (r =-0.216, P < .01), demonstrating discriminant validity. Convergent validity was supported through significant correlations with number of shocks (r = 0.464, P < 0.01) and reported disruptiveness of shock (r = 0.484, P < 0.01). Confirmatory factor analysis revealed that a single (second-order) factor model (χ(2) [34] = 75.34, P < 0.05, comparative fit index = 0.98, root mean-square error of approximation = 0.05) had the best fit. CONCLUSIONS: Shock anxiety as a construct can be measured in a reliable and valid method by the FSAS. These nationally representative data suggest that a single score for shock anxiety is an easy to use and appropriate method of assessment.

The implantable cardioverter defibrillator: its history, current psychological impact and future.

The innovation of the implantable cardioverter defibrillator (ICD) represents a modern medical achievement with substantial life-saving benefits for patients at risk for potentially life-threatening arrhythmias. Over a decade of research resulted in the first ICD implantation in 1980, dramatically changing the face of cardiac care. The introduction of the device was met by skepticism and outright rejection by some, yet large-scale clinical trials clearly demonstrated the mortality benefit of the ICD. Today, specific challenges for this technology have emerged, including barriers to individual and social acceptance of the ICD as a viable form of technology, as well as psychosocial adjustment difficulties and fears in patients. To address these challenges, scientific research, improved communication regarding devices and psychosocial interventions have been developed and extended to this patient population. As such, it is hypothesized that the future will hold expanding indications for ICD implantation, while further meeting patients' medical and psychosocial adjustment needs. The purposes of this paper are to review the history of ICD innovation, describe past and present research on psychosocial adjustment to the ICD, and corresponding psychosocial interventions, analyze individual and social acceptance and utilization of device technology, and forecast future applications and developments of the ICD.