1. Volume 7, Issue 11, Pages 1537-1542 (November 2010)
Ethical and legal views of physicians regarding deactivation of cardiac implantable electrical devices: A quantitative assessment 
Daniel B. Kramer, MD, Aaron S. Kesselheim, MD, JD, MPH, Dan W. Brock, PhD, William H. Maisel, MD, MPH, FHRS 
Heart Rhythm 
Volume 7, Issue 11, Pages (November 2010)
DOI: /j.hrthm
Copyright © 2010 Heart Rhythm Society Terms and Conditions

2. Figure 1 Definitions provided to study participants.
Heart Rhythm 2010 7, DOI: ( /j.hrthm )
Copyright © 2010 Heart Rhythm Society Terms and Conditions

3. Figure 2
Physicians' lack of comfort discussing withdrawal of specific life-sustaining therapies. *P <.005 for comparison of mechanical ventilation, feeding tubes, and dialysis vs each of three cardiac device options. ICD = implantable cardioverter-defibrillator; PM = pacemaker.
Heart Rhythm 2010 7, DOI: ( /j.hrthm )
Copyright © 2010 Heart Rhythm Society Terms and Conditions

4. Figure 3
Percentage of physicians who viewed withdrawal of pacemaker (PM) (red hatched bars) or implantable cardioverter-defibrillator (ICD) (blue solid bars) therapy to be morally different compared to withdrawal of other life-sustaining therapy. P <.001 for ICD vs PM for mechanical ventilation or dialysis; P =.016 for ICD vs PM for feeding tube; P = NS for ICD vs PM for chest compressions.
Heart Rhythm 2010 7, DOI: ( /j.hrthm )
Copyright © 2010 Heart Rhythm Society Terms and Conditions