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Research Letters |

Patient Preferences for Deactivation of Implantable Cardioverter-Defibrillators FREE

John A. Dodson, MD; Terri R. Fried, MD; Peter H. Van Ness, PhD, MPH; Nathan E. Goldstein, MD; Rachel Lampert, MD
[+] Author Affiliations

Author Affiliations: Sections of Cardiology (Drs Dodson and Lampert) and Geriatrics (Drs Dodson, Fried, and Van Ness), Department of Internal Medicine, Yale University School of Medicine, New Haven, Connecticut; Department of Geriatrics and Palliative Care, Mount Sinai School of Medicine, New York, New York; James J. Peters VA Medical Center, Bronx, New York (Dr Goldstein).


JAMA Intern Med. 2013;173(5):377-379. doi:10.1001/jamainternmed.2013.1883.
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While implantable cardioverter-defibrillators (ICDs) prolong life, painful shocks can occur at the end of life, and physicians rarely discuss the option of device deactivation.1,2 To prevent shocks at the end of life that do not meaningfully prolong survival, a recent Heart Rhythm Society consensus statement recommended proactive communication with patients regarding deactivation.3 However, most surveys have found that the majority of ICD patients would not consider deactivation even in deleterious future health states including terminal cancer,4 constant dyspnea,5 or frequent shocks.5,6

We examined preferences for ICD deactivation in the context of health outcomes such as functional and cognitive disabilities shown to matter most to patients.7 Our survey provided an informational description of the potential benefits and burdens of the shocking function of ICDs and subsequently presented scenarios describing broad health outcomes common in patients approaching the end of life.

We recruited ICD patients 50 years and older who were followed in a single academic electrophysiology practice (Yale University). Eligible participants were English speaking and had received a new ICD implant or generator change between January 1, 2006, and December 31, 2009. We excluded patients who were cognitively impaired, had an initial device within the past year, or had a cardiac resynchronization therapy-capable device. Eligible participants were contacted by telephone by 1 investigator (J.A.D.), and those consenting were administered a 20-minute telephone survey. The study was approved by the Yale Human Investigation Committee.

The survey (eAppendix ) included 2 open-ended questions: “What do you feel are the potential benefits of your ICD?” and “What do you fell are the potential harms of your ICD?” Responses were transcribed and later categorized by 3 investigators (J.A.D., T.R.F., and R.L.), with discrepancies resolved through consensus. Participants were then read a standardized script providing the best current evidence regarding benefits and burdens of ICDs. Subsequently, participants were asked whether they would want their ICD deactivated in 5 scenarios representing key domains of health8 that strongly influence treatment preferences.7 The scenarios were as follows: (1) permanently unable to get out of bed, (2) permanent memory problems, (3) burden to family members, (4) prolonged mechanical ventilation (>1 month), and (5) advanced incurable disease. Participants responded using a scale of 1 (“definitely no”) to 5 (“definitely yes”); they were classified as wanting deactivation if they responded “possibly yes” or “definitely yes” to at least 1 scenario.

Of 136 eligible patients contacted, 95 (70%) agreed to participate. The mean (SD) age was 71.4 (10.6) years, 28% were female, and 19% were nonwhite. The mean (SD) duration of ICD placement was 4.0 (2.4) years prior, and 29% of participants had received a prior ICD shock.

Thirty-one participants reported “unknown” or “no” benefits of their ICD. Other responses were categorized as restarting the heart (n = 31), living longer (n = 27), improving quality of life (n = 7), other (n = 4 [3 patients thought the ICD prevented atrial fibrillation or stroke and 1 thought that it improved heart function]). Sixty participants could not name a potential harm. The remaining categories were receiving a shock (n = 14), device malfunction (n = 8), nuisance (n = 5), complication (infection or bleeding) (n = 2), inappropriate end-of-life shocks (n = 2), and other (n = 4 [1 was related to a phantom shock and 3 were related to unrealistic fears regarding harming the device—by lying down, touching the device, or falling]) (Figure).

Place holder to copy figure label and caption
Graphic Jump Location

Figure. Qualitative and quantitative results. a-fib Indicates atrial fibrillation; ICD, implantable cardioverter-defibrillator.

Sixty-seven participants (71%) wanted ICD deactivation in 1 or more scenarios. Responses to individual scenarios ranged from 61% wanting deactivation in the setting of advanced incurable disease to 24% wanting deactivation if permanently unable to get out of bed (eFigure). Participant characteristics associated with wanting deactivation included race and disability but not age (Table).

Table Graphic Jump LocationTable. Association of Patient Characteristics With ICD Deactivation Preference

In contrast to prior findings, in our study, following an informational script the majority (71%) of participants wanted ICD deactivation in at least 1 scenario describing health outcomes that are common in patients approaching the end of life.

There are several potential explanations for why our findings differ from prior investigations suggesting that the majority of patients would not want deactivation even in scenarios reflecting advanced illness.46 One may be the age of our study sample, which consisted exclusively of older individuals (age ≥50 years). Another may be the study protocol, which involved reading each participant an informational script explaining the purpose of their ICD. Our qualitative finding that a sizeable number of participants did not have a good understanding of the benefits or potential burdens of their ICD underscores this possibility and highlights the importance of physician communication of information. Finally, we included a broad range of scenarios reflecting outcomes of advanced functional, cognitive, and medical illness, which further highlight the importance of communication in the framework of goal setting around desired health states,9 since tolerance for shocks and discomfort will be based on the ultimate perceived outcome. We believe that our findings emphasize the importance of incorporating multiple patient-centered outcomes into advance care planning for ICD patients.

Correspondence: Dr Lampert, Yale University School of Medicine, Section of Cardiology, 789 Howard Ave, Dana 3, Room 319, New Haven, CT 06520 (rachel.lampert@yale.edu).

Published Online: January 28, 2013. 10.1001/jamainternmed.2013.1883. Corrected March 11, 2013.

Author Contributions:Study concept and design: Dodson, Fried, and Lampert. Acquisition of data: Dodson. Analysis and interpretation of data: Dodson, Fried, Van Ness, Goldstein, and Lampert. Drafting of the manuscript: Dodson. Critical revision of the manuscript for important intellectual content: Fried, Van Ness, Goldstein, and Lampert. Statistical analysis: Dodson and Van Ness. Obtained funding: Fried. Study supervision: Fried, Lampert.

Conflict of Interest Disclosures: Dr Lampert receives significant research grants from Medtronic, Boston Scientific, and St Jude and a modest honorarium from Medtronic.

Funding/Support: Support for this study was provided by a training grant in Geriatric Clinical Epidemiology from the National Institute on Aging (T32 AG019134) (Dr Dodson) and a mid-career mentorship award from the National Institute of Aging (K24AG028443) (Dr Fried). This work was supported in part by a grant from the Claude D. Pepper Older Americans Independence Center at Yale University School of Medicine (P30AG021342 National Institutes of Health/National Institute of Aging).

Goldstein NE, Lampert R, Bradley E, Lynn J, Krumholz HM. Management of implantable cardioverter defibrillators in end-of-life care.  Ann Intern Med. 2004;141(11):835-838
PubMed
Nambisan V, Chao D. Dying and defibrillation: a shocking experience.  Palliat Med. 2004;18(5):482-483
PubMed   |  Link to Article
Lampert R, Hayes DL, Annas GJ,  et al; American Heart Association; American College of Cardiology; American Geriatrics Society; American Academy of Hospice and Palliative Medicine; European Heart Rhythm Association; Hospice and Palliative Nurses Association.  HRS Expert Consensus Statement on the Management of Cardiovascular Implantable Electronic Devices (CIEDs) in patients nearing end of life or requesting withdrawal of therapy.  Heart Rhythm. 2010;7(7):1008-1026
PubMed   |  Link to Article
Kobza R, Erne P. End-of-life decisions in ICD patients with malignant tumors.  Pacing Clin Electrophysiol. 2007;30(7):845-849
PubMed   |  Link to Article
Stewart GC, Weintraub JR, Pratibhu PP,  et al.  Patient expectations from implantable defibrillators to prevent death in heart failure.  J Card Fail. 2010;16(2):106-113
PubMed   |  Link to Article
Raphael CE, Koa-Wing M, Stain N, Wright I, Francis DP, Kanagaratnam P. Implantable cardioverter-defibrillator recipient attitudes towards device deactivation: how much do patients want to know?  Pacing Clin Electrophysiol. 2011;34(12):1628-1633
PubMed   |  Link to Article
Fried TR, Tinetti ME, Iannone L, O’Leary JR, Towle V, Van Ness PH. Health outcome prioritization as a tool for decision making among older persons with multiple chronic conditions.  Arch Intern Med. 2011;171(20):1854-1856
PubMed   |  Link to Article
World Health Organization.  Preamble to the Constitution of the World Health Organization as adopted by the International Health Conference, New York, 19-22 June, 1946; signed on 22 July 1946 by the representatives of 61 states (Official Records of the World Health Organization, no. 2, p. 100) and entered into force on 7 April 1948. Geneva, Switzerland: World Health Organization; 1948
Allen LA, Stevenson LW, Grady KL,  et al; American Heart Association; Council on Quality of Care and Outcomes Research; Council on Cardiovascular Nursing; Council on Clinical Cardiology; Council on Cardiovascular Radiology and Intervention; Council on Cardiovascular Surgery and Anesthesia.  Decision making in advanced heart failure: a scientific statement from the American Heart Association.  Circulation. 2012;125(15):1928-1952
PubMed   |  Link to Article

Figures

Place holder to copy figure label and caption
Graphic Jump Location

Figure. Qualitative and quantitative results. a-fib Indicates atrial fibrillation; ICD, implantable cardioverter-defibrillator.

Tables

Table Graphic Jump LocationTable. Association of Patient Characteristics With ICD Deactivation Preference

References

Goldstein NE, Lampert R, Bradley E, Lynn J, Krumholz HM. Management of implantable cardioverter defibrillators in end-of-life care.  Ann Intern Med. 2004;141(11):835-838
PubMed
Nambisan V, Chao D. Dying and defibrillation: a shocking experience.  Palliat Med. 2004;18(5):482-483
PubMed   |  Link to Article
Lampert R, Hayes DL, Annas GJ,  et al; American Heart Association; American College of Cardiology; American Geriatrics Society; American Academy of Hospice and Palliative Medicine; European Heart Rhythm Association; Hospice and Palliative Nurses Association.  HRS Expert Consensus Statement on the Management of Cardiovascular Implantable Electronic Devices (CIEDs) in patients nearing end of life or requesting withdrawal of therapy.  Heart Rhythm. 2010;7(7):1008-1026
PubMed   |  Link to Article
Kobza R, Erne P. End-of-life decisions in ICD patients with malignant tumors.  Pacing Clin Electrophysiol. 2007;30(7):845-849
PubMed   |  Link to Article
Stewart GC, Weintraub JR, Pratibhu PP,  et al.  Patient expectations from implantable defibrillators to prevent death in heart failure.  J Card Fail. 2010;16(2):106-113
PubMed   |  Link to Article
Raphael CE, Koa-Wing M, Stain N, Wright I, Francis DP, Kanagaratnam P. Implantable cardioverter-defibrillator recipient attitudes towards device deactivation: how much do patients want to know?  Pacing Clin Electrophysiol. 2011;34(12):1628-1633
PubMed   |  Link to Article
Fried TR, Tinetti ME, Iannone L, O’Leary JR, Towle V, Van Ness PH. Health outcome prioritization as a tool for decision making among older persons with multiple chronic conditions.  Arch Intern Med. 2011;171(20):1854-1856
PubMed   |  Link to Article
World Health Organization.  Preamble to the Constitution of the World Health Organization as adopted by the International Health Conference, New York, 19-22 June, 1946; signed on 22 July 1946 by the representatives of 61 states (Official Records of the World Health Organization, no. 2, p. 100) and entered into force on 7 April 1948. Geneva, Switzerland: World Health Organization; 1948
Allen LA, Stevenson LW, Grady KL,  et al; American Heart Association; Council on Quality of Care and Outcomes Research; Council on Cardiovascular Nursing; Council on Clinical Cardiology; Council on Cardiovascular Radiology and Intervention; Council on Cardiovascular Surgery and Anesthesia.  Decision making in advanced heart failure: a scientific statement from the American Heart Association.  Circulation. 2012;125(15):1928-1952
PubMed   |  Link to Article

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