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Biomedical subjects

Samuel F Sears

Publications and source records attributed to Samuel F Sears.

At least 19 recordsLinked to original sources

Psychological aspects of cardiac devices and recalls in patients with implantable cardioverter defibrillators.

The product recall of an implantable cardioverter defibrillator (ICD) creates a potentially stressful event for patients. This study briefly describes the psychological adjustment of patients with implantable devices and makes recommendations for the management of device recalls and adverse outcomes to minimize psychological distress. Because the occurrence of ICD-specific fears and symptoms of anxiety are the most common psychological symptoms experienced by ICD recipients, a comprehensive care plan to attend to recall procedures and patient distress is needed. It is suggested that recalls do not affect all ICD patients equally, with risk factors for poor psychological adjustment to ICDs including younger age (< 50 years), shock experience, and female gender that may be associated with increased recall anxiety. Specific recommendations for device recall management include formalizing clinic responses to recall before and after implantation and innovative uses of patient support systems to communicate recall responses.

Anxiety↗

Psychosocial and cultural influences on cardiovascular health and quality of life among Hispanic cardiac patients in South Florida.

This study examined whether psychosocial and cultural factors were related to four dimensions of cardiac-related quality of life (global, physical, emotional, and social functioning) in 120 Hispanic coronary heart disease (CHD) outpatients in south Florida. Survey data were collected on sociodemographic (age, gender, socioeconomic status), psychosocial (depression, social support), and cultural factors (acculturation, familism, fatalism), and quality of life. Medical data on CHD severity (New York Heart Association class, time since diagnosis) were obtained from patients' clinic records. Hierarchical regression analyses revealed that women and patients with more severe CHD had poorer quality of life than men or patients with less severe CHD. Psychosocial and cultural factors were associated with poorer quality of life after controlling for sociodemographic and medical variables: Depression was associated with all four quality of life dimensions (p < .001); and fatalism (p < .05) was associated with lower social functioning in women. These findings identify Hispanic subgroups with poor cardiac-related quality of life that can benefit from special outreach.

Acculturation↗

Implantable cardioverter defibrillator implant-explant-implant case study: addressing the psychological adjustment to multiple shocks.

This case study details the multidisciplinary approach to a patient who underwent implantable cardioverter defibrillator (ICD) explantation for psychological reasons. The patient was unable to manage the stress associated with multiple shocks. He had a class I indication for an ICD but initially refused to undergo reimplantation. Treatment included the provision of comprehensive medical, nursing, and psychological care, with emphasis on patient autonomy and respect for the patient's experience.

Adaptation, Psychological↗

The role of the psychologist in adult congenital heart disease.

In addition to monitoring and treating the cardiac disease, patients benefit from health professionals recognizing and managing the potential psychosocial consequences of growing up with congenital heart disease. Working groups from Europe and North America have emphasized the benefit of inclusion of specialized mental health care for adult congenital heart disease (ACHD) patients. This article reviews the evidence that ACHD patients have special and unique psychosocial needs and outlines ways in which psychologists can be integrated into multidisciplinary ACHD care teams. There are three professional domains in which clinical health psychologists can contribute to an ACHD team: provision of clinical services, multidisciplinary research, and professional education. Considerations for incorporating psychology into ACHD teams are presented.

Adolescent↗

Device implant technique and consideration of body image: specific procedures for implantable cardioverter defibrillators in female patients.

OBJECTIVES: The purpose of this paper is to describe the psychological effects of implantable cardioverter defibrillator (ICD) implantation in female patients and to make clinical recommendations for providers to optimize health outcomes for women. BACKGROUND: Traditional ICD implantation produces visible scarring. Changes in physical appearance affect body image in all ICD recipients but may be more onerous in female ICD recipients. Electrophysiologists have described cosmetic approaches to device placement that appear promising and may warrant consideration in female patients. CONCLUSIONS: Active discussion and consideration of alternative device implant techniques are indicated in female patients. Female patients should also be given time to make preoperative decisions, and family members should be engaged in decision making. The investigation of cosmetic implants is noteworthy and could improve quality of life, adjustment, and psychological fitness of female ICD recipients.

Adaptation, Psychological↗

Measurement of patient fears about implantable cardioverter defibrillator shock: an initial evaluation of the Florida Shock Anxiety Scale.

BACKGROUND: Psychological distress is both a precipitant and a consequence of ICD shock. Therefore, the assessment of patient anxiety and concerns related to receiving an ICD shock may prompt appropriate psychological referrals and treatment. METHODS: The purpose of this study is to assess the initial validity and clinical utility of the Florida Shock Anxiety Scale (FSAS). Seventy-two ICD recipients completed the FSAS. RESULTS: Exploratory factor analysis revealed a two-factor structure with items loading such that Factor 1 could be conceptualized as a Consequence Factor (e.g., fearing creating a scene if the device were to fire) and Factor 2 as a Trigger Factor (e.g., fearing sexual activity). Alpha coefficients suggest good reliability (Cronbach's alpha= 0.91, split-half = 0.92), and FSAS Total Score was moderately correlated (r =-0.65) with total score on the Multidimensional Fear of Death Scale. CONCLUSIONS: Two subscales, labeled consequence of shock and trigger of shock, were established via factor analysis. Collectively the FSAS demonstrates potential utility to assess shock distress and warrants additional investigation.

Anxiety↗

Quality of death: implantable cardioverter defibrillators and proactive care.

OBJECTIVES: The purpose of this paper is to discuss quality of death (QOD) among patients with congestive heart failure (CHF) and implantable cardioverter defibrillators. We outline recommendations that enhance QOD from the device patient and specialty cardiology perspectives. BACKGROUND: Contemporary treatment of CHF patients routinely includes both pharmacologic therapy and the use of cardiac devices. The implantable cardioverter defibrillator prevents premature death in heart failure patients, though not death itself. CONCLUSIONS: Active discussion and consideration of patient's QOD is indicated in implantable cardioverter defibrillator patients to prevent unnecessary treatment and to increase control over perceived quality of life by patients and family.

Death↗

Using computers to improve the psychosocial care of implantable cardioverter defibrillator recipients.

Person-to-person psychosocial interventions (e.g., psychological, social) enhance the well-being of implantable cardioverter defibrillator (ICD) patients. Computerized care, though, represents an opportunity to further capitalize on techniques that have already been deemed effective. This includes the provision of tailored, effective patient education; reducing device-specific anxiety; and enhancing social support networks. The aim of this paper is to identify the ways in which computerized psychosocial care could potentially enhance the well-being of ICD recipients. For example, computers may be particularly adept at providing patient education due to the ease in which content can be adapted to meet patient needs. Further, evidenced-based treatments for anxiety and depression (e.g., cognitive behavioral therapy) have demonstrated good applicability to computerized formats. Social support can also be provided online in the form of bulletin boards, email list-servs, or structured online support groups. Despite the existence of some limitations, the use of computers in affecting psychosocial outcomes in implantable defibrillator recipients warrants greater attention.

Cognitive Behavioral Therapy↗

Management of heart failure after cardiac resynchronization therapy: integrating advanced heart failure treatment with optimal device function.

Cardiac resynchronization therapy (CRT) is an established adjunctive treatment for patients with systolic heart failure (HF) and ventricular dyssynchrony. The majority of recipients respond to CRT with improvements in quality of life, New York Heart Association functional class, 6-min walk test, and ventricular function. Management of HF after CRT may include up-titration of neurohormonal blockade and an exercise prescription through cardiac rehabilitation to further improve and sustain clinical outcomes. Diagnostic data provided by the CRT device may help to facilitate and optimize treatment. Initial nonresponder rates remain problematic. We suggest a simple step-by-step management and troubleshooting strategy that integrates device function with advanced HF therapy in patients who do not initially respond to CRT. This algorithm represents a new, comprehensive, collaborative approach between the HF and electrophysiology specialists to further improve and sustain outcomes in the field of CRT.

Adrenergic beta-Antagonists↗

Depression as a predictor for appropriate shocks among patients with implantable cardioverter-defibrillators: results from the Triggers of Ventricular Arrhythmias (TOVA) study.

OBJECTIVES: We sought to examine the relationship between symptoms of depression and shock-treated ventricular arrhythmias among implantable cardioverter-defibrillator (ICD) patients. BACKGROUND: Depression predicts mortality in patients with coronary artery disease (CAD), but whether this is via an increased risk of fatal ventricular arrhythmias is unclear. METHODS: We prospectively analyzed data on symptoms of depression and risk of ventricular arrhythmia (ventricular tachycardia/ventricular fibrillation [VT/VF]) resulting in ICD discharge in the Triggers of Ventricular Arrhythmias (TOVA) study. Symptoms were assessed by the Center for Epidemiologic Studies-Depression (CES-D) scale. Scores of 16 to 26 and > or =27 represented mild and moderate/severe depression, respectively. The Cox and Anderson-Gill proportional hazards models were used to test for associations among all patients and patients with CAD. RESULTS: Among 645 patients with baseline assessments, 90 (14%) were mildly depressed and 25 (3.9%) were moderately to severely depressed. Moderate/severe depression was associated with time to first shock for VT/VF (hazard ratio [HR] 3.2, 95% confidence interval [CI] 1.1 to 9.9) and all shocks for VT/VF including recurrent episodes (HR 3.2, 95% CI 1.2 to 8.6). Among the 476 CAD patients, the association with time to first shock (HR 6.4, 95% CI 1.9 to 21.1) and all shocks (HR 8.3, 95% CI 2.9 to 23.3) remained. The risk of shock for VT/VF was associated with depression severity in the total population (p for trend = 0.02) and among patients with CAD (p < 0.01), even after controlling for multiple confounders. CONCLUSIONS: More severe symptoms of depression predict shocks for VT/VF among ICD patients. The elevated risk of VT/VF among patients with CAD and depression suggests that arrhythmia may contribute significantly to total mortality in this subgroup.

Cohort Studies↗

Do new drivers equal new donors? An examination of factors influencing organ donation attitudes and behaviors in adolescents.

Adolescent and parent organ donation attitudes, knowledge, communications, and donor card signing rates were assessed. Parent-adolescent dyads (N = 137) were recruited at a Department of Motor Vehicles (DMV). Using discriminant analysis, attitude, knowledge, and communication variables adequately classified adolescent donor status. Overall, adolescent positive attitude toward donation was the most powerful variable discriminating between donors and nondonors. Examining only participants who had discussed donation with parents, the nature of parent-adolescent discussions about organ donation became the most important variable in donor classification. Adolescent donors reported significantly more positive and less negative attitudes, had parents with more positive and less negative attitudes, and had engaged in more frequent and more positive communications with parents about organ donation.

Adolescent↗

Biopsychosocial experiences of adults with congenital heart disease: review of the literature.

BACKGROUND: Approximately 1% of all newborns display some form of congenital heart disease (CHD). Successful medical and surgical management of CHD has allowed 85% of these children to survive into adulthood and produced a new set of challenges for both patients and doctors with an emphasis on quality of life and psychosocial functioning. METHODS: The current paper has 3 aims: (1) to summarize the research literature examining the emotional adjustment among this population, (2) to detail the psychological, social, and quality-of-life factors that might result in an increased risk of psychological maladjustment, and (3) to provide clinical management strategies to optimize health outcomes. RESULTS: Current empirical evidence has suggested that compared with same aged reference norms in US studies, adults with CHD had scores indicative of worse emotional functioning as assessed by both clinical interviews and self-report measures. Similar European studies have generally not demonstrated such differences. Additional research suggests that areas of functioning that may be particularly affected include neurocognitive functioning, body image, social and peer relationships, and mild delays in developmental functioning. CONCLUSIONS: These studies suggest that patients with CHD are successfully engaging in full adult responsibilities and roles but do experience specific psychosocial challenges that may impact emotional functioning, self-perception, and peer relationships. Lifestyle considerations in young adulthood are significant and impinge on pregnancy considerations and exercise capabilities. Clinical management strategies include increased awareness and dialogue between patients with CHD and physicians regarding psychosocial concerns.

Adolescent↗

Measuring patient acceptance of implantable cardiac device therapy: initial psychometric investigation of the Florida Patient Acceptance Survey.

INTRODUCTION: Patient acceptance of implantable device therapy has been established as an important outcome but the operationalization and validation of a measure of patient acceptance of implantable device therapy has not been fully completed. This study sought to validate a new measure of patient acceptance of cardiac implantable devices called the Florida Patient Acceptance Survey (FPAS). METHODS: The sample consisted of implantable cardioverter defibrillator (ICD; n = 58), and implantable atrioverter defibrillator (ICD-AT; n = 96), and pacemaker (PM, n = 84) patients. Mean age of all participants was 69 years; they were mostly male (62%) and married (75%). The final FPAS comprised 15 items with four consistent factors: Return to Function, Device-Related Distress, Positive Appraisal, and Body Image Concerns. RESULTS: The total FPAS demonstrated good internal consistency (Cronbach's alpha = 0.83), and internal consistency for each of the subscales ranged from 0.74 to 0.89. The FPAS demonstrated convergent, divergent, and discriminant validity when compared to other self-report measures of QOL, atrial symptoms, depression, and anxiety. A total FPAS score can be formed and between group comparisons with this sample indicated that ICD patients report a high level of acceptance (mean = 76), ICD-AT patients report a significantly higher level of acceptance (mean = 81.1), and PM patients reported the highest level of patient acceptance (mean = 85.4) of these implantable device groups. CONCLUSION: This initial psychometric investigation of the FPAS suggests that the FPAS may be useful in both clinical and research settings to assess patient acceptance of implantable cardiac devices.

Aged↗

Understanding atrial symptom reports: objective versus subjective predictors.

BACKGROUND: Atrial fibrillation (AF) is the most common cardiac arrhythmia and is associated with a variety of symptoms such as dizziness, palpitations, shortness of breath, and other signs of heart failure, which in turn impact quality of life (QOL). Implantable cardioverter defibrillators with atrial therapies (ICDs-ATs) have been shown to reduce AF symptoms and improve QOL in select AF samples. METHOD: This study examined the strength of relationships between objective (device-detected AF events) versus subjective (emotional symptoms) data and AF symptoms (number) reported as part of the Patient Atrial Shock Survey of Acceptance and Tolerance Study (N = 96, 72% men, M age = 65, SD = 12). Depression and anxiety were assessed via the Center for Epidemiological Studies--Depression Scale and the-State Trait Anxiety Inventory. AF disease burden was measured via a number of device-detected AF episodes and the Atrial Tachyarrhythmia Symptom Severity Scale. RESULTS: Hierarchical multiple regression analysis indicated that negative emotions accounted for a significant 13.2% of unique variance in AF symptom score (F change (1, 54) = 9.625, P = 0.003). On the other hand, the number of device-detected AF episodes accounted for non-significant 8.2% of unique variance in the AF symptom score (P = 0.167). The full model explained 25.7% of the variance in AF symptom score (F(6, 54) = 3.110, P = 0.011). Specifically, greater number of treated AF episodes (beta= 0.251, P = 0.043) and higher levels of negative emotions (beta= 0.369, P = 0.003) predicted greater number of reported AF symptoms. CONCLUSION: Therefore, psychological distress may be a significant confounding factor affecting patient's report of AF symptoms rather than the actual experience of recurrent AF episodes.

Aged↗

Organ scarcity and the psychological pre-heart transplant evaluation: a simulation study using community residents.

CONTEXT: Although research examining medical outcomes in heart transplantation has progressed, there are few studies examining the impact of organ scarcity and wait list demand on the transplant candidate evaluation process. OBJECTIVE: To examine the influence of transplant knowledge pertaining to organ scarcity and wait list demand on simulated ratings of psychological distress provided by community residents participating in a simulated pre-heart transplant evaluation. DESIGN: A randomized, controlled design. We used a vignette simulation to experimentally manipulate the effect of transplant knowledge pertaining to organ scarcity in a group of community residents with no previous knowledge or experience with the transplant selection process. PARTICIPANTS: One hundred forty-three community residents visiting a department of motor vehicles office in north central Florida were recruited. Community residents were randomly assigned to 1 of 2 experimental conditions, with either mention (n=66) or no mention (n=77) of organ scarcity and wait list demand statistics in their assigned vignette. Participants then served as actors and completed measures of psychological distress as part of a mock psychological pre-heart transplant evaluation. RESULTS: Participants with mention of organ scarcity reported significantly fewer symptoms of anxiety and depression compared to those with no mention of organ scarcity. This relationship remained significant even after controlling for relevant covariates, including age and simulated ratings of social desirability. CONCLUSION: Transplant knowledge pertaining to organ scarcity and wait list demand may influence transplant candidates to report fewer symptoms of psychological distress. Clinical suggestions for dealing with underreporting of psychological distress are discussed.

Adult↗

The World Trade Center attack: increased frequency of defibrillator shocks for ventricular arrhythmias in patients living remotely from New York City.

OBJECTIVES: The goal of this study was to determine whether the World Trade Center (WTC) attack on September 11, 2001, had an effect on the occurrence of ventricular arrhythmias among patients with implantable cardioverter-defibrillators (ICDs) living in Florida. BACKGROUND: Increased frequencies of ICD therapies for ventricular arrhythmias were reported among patients in New York City after the attack on the WTC. Whether this effect also occurred in patients living geographically distant from New York is unknown. METHODS: This was an observational study consisting of 132 ICD patients who presented to the University of Florida and the Veterans Affairs Medical Center in Gainesville, Florida, for routine ICD follow-up around the time of the WTC attack. The occurrence of ventricular tachyarrhythmias triggering ICD therapy in the 30 days before and after September 11 constituted the primary end point. RESULTS: In the 30 days following the WTC attack, a total of 14 patients (11%) had ventricular tachyarrhythmias, compared with 5 (3.8%) in the preceding 30 days (p = 0.0389, 95% confidence interval [CI] 0.4 to 13.3). This represents a 2.8-fold risk increase. Patients with ventricular arrhythmias both before and after September 11 demonstrated a rate increase of 2.38 events per patient (p = 0.0231, 95% CI 1.03 to 13.97). CONCLUSIONS: The frequency of ventricular arrhythmias requiring ICD treatment increased by 68% among patients in Florida around the WTC attack. These findings suggest that stress-related arrhythmogenesis due to the WTC tragedy was not restricted to the geographic location of the attack. A major national tragedy may cause widespread increased risk of potentially life-threatening ventricular arrhythmias.

Adrenergic beta-Antagonists↗

Women and the implantable cardioverter defibrillator: a lifespan perspective on key psychosocial issues.

The clinical success of the implantable cardioverter defibrillator (ICD) in reducing mortality suggests that more women will be receiving ICDs in the future. The impact of ICD therapy in women is unique in western societies; the ICDs scar and lump in the pectoral area can lead to body image concerns due to the emphasis on women's physical attractiveness. Social support and roles are challenged because women's reaction to stress has been characterized by a "tend and befriend" response, involving cultivating and utilizing social networks, rather than the "fight or flight" response more typical of men. In addition, a woman's identity as a caretaker and caregiver can be threatened by the actual and perceived activity limitations imposed by the ICD or the underlying heart condition. Finally, reproductive and sexual health are important issues, as 25 to 50% of patients with ICDs report concerns in this area, but also report discomfort in discussing these concerns with their health care providers. The purpose of the present paper is to review the relevant literature and to identify the unique impact of the psychosocial issues of body image, social support and roles, and sexual development and reproductive functioning for women with ICDs across the lifespan. In the absence of complete empirical research data on the impact of these concerns, hypotheses to test in future research are offered.

Attitude to Health↗