he implantable cardioverter-defibrillator (ICD) has revolutionized the care of patients at risk for life-threatening arrhythmias. Large-scale clinical trials established mortality benefits for the ICD over usual care or medications 1,2 and led to wider use for both primary and secondary prevention indications. More recent research confirms that the mortality benefits of the ICD extend over 8-year follow-up when compared with usual care. 3 These clinical trial successes, in terms of mortality, have allowed for greater focus on patientcentered outcomes, such as quality of life, device acceptance, psychological well-being, and trauma reactions in research and clinical care. 4 Shock has been a primary focus in this work because of its potentially traumatic impact on the patient experience. Although there is mixed evidence on the effect of single ICD shocks, 5,6 the literature consistently supports the negative impact of Ͼ5 shocks on quality of life and emotional distress. 7,8 ICD shock has been a focus of research interest because it is a unique experience for the ICD patient and can be perceived as a traumatic event. In addition, the existence of concomitant heart disease, angina, congestive heart failure, or previous sudden death may create sensitivity to traumatic stress that warrants improved understanding by attending electrophysiologists. Although psychological distress in ICD patients has been explored, the possibility that some ICD patients have trauma reactions, up to and including posttraumatic stress disorder (PTSD), has garnered increased attention recently. Therefore, the purposes of this report are to highlight the theory and research addressing psychological distress including PTSD in electrophysiology clinics, to discuss clinical management of these sequelae, and to suggest areas of future research and development.
Psychosocial Distress of ICD Patients in Electrophysiology ClinicsPrevention and identification of distress in ICD patients represents comprehensive, high-quality care, regardless of the cause (eg, depression, anxiety, trauma), consistent with the biopsychosocial model of care. 9 This model of care entails the conceptualization and treatment of health problems as an interplay between biological factors, psychological factors, and social factors culminating in the manifestation of symptoms. For an electrophysiologist, these ambitious goals can include prevention of distress through cardiac care and education, recognition of distress warranting referral, optimizing quality-of-life (QoL) outcomes, and promoting patient acceptance of the ICD. Clearly, these are not easily accomplished without sufficient awareness, clinical support, and interdisciplinary expertise. Below are some key considerations for daily clinical practice.
Prevalence and Impact of Psychosocial DistressGeneral or ICD-specific anxiety as a psychological morbidity has a point prevalence of 13% to 38% of ICD recipients in cross-sectional research. 4 Longitudinal assessment of anxiety has indicated that approximately 35% of pati...