DNR Reconsideration Before Left Heart Catheterization
Yes, you should review and reconsider DNR status with the patient or their decision-maker before left heart catheterization, rather than automatically suspending or continuing the order. This "required reconsideration" approach respects patient autonomy while addressing the unique risks of invasive cardiac procedures 1, 2.
Why DNR Reconsideration is Essential
Left heart catheterization carries specific procedural risks including:
- Arrhythmias (potentially requiring defibrillation)
- Cardiac perforation
- Vascular complications
- Hemodynamic instability from contrast and positioning 3
The critical distinction is whether a cardiopulmonary arrest results from the procedure itself (iatrogenic) versus the underlying disease process. Patients deserve the opportunity to specify their wishes for each scenario 4, 5.
The Required Reconsideration Approach
The 2015 AHA guidelines emphasize that DNAR orders should be completed after documented discussion with the patient and/or family before procedures 1. This is not automatic suspension—it's structured dialogue about goals of care in the procedural context.
Key Steps:
- Initiate discussion preprocedurally with the patient or surrogate decision-maker
- Clarify the specific resuscitation interventions the patient would accept during the catheterization (e.g., defibrillation for procedure-induced arrhythmia vs. chest compressions for cardiac arrest)
- Document the conversation and any temporary modifications to the DNR order
- Specify the timeframe for any DNR suspension (during procedure only, through recovery, etc.)
- Reinstate the original DNR order post-procedure per patient wishes
Evidence Supporting This Approach
Recent data shows that structured workflows for DNR reconsideration before cardiac catheterization improve documentation and patient-centered care 6. In one study, 78% of patients had preprocedural code status discussions documented when using a standardized workflow 6.
However, baseline compliance with DNR acknowledgment before invasive cardiac procedures is poor—ranging from 7.5% to 75.6% across different procedural areas before intervention 7. After implementing structured protocols, acknowledgment improved significantly from 38.6% to 61.1% 7.
Common Pitfalls to Avoid
- Never automatically suspend DNR orders without patient/family discussion—this violates patient autonomy 5
- Never automatically continue DNR orders without clarifying whether the patient wants resuscitation for procedure-related complications 5
- Don't assume the patient's wishes—what seems obvious to the cardiologist may differ entirely from the patient's perspective 5
- Avoid vague documentation—specify exactly which interventions are permitted and under what circumstances 8
Special Considerations
For high-risk patients (heart failure NYHA Class III-IV, ejection fraction ≤35%, severe valvular disease), the procedural risk is substantially elevated 9. These patients particularly benefit from detailed advance care planning discussions that address:
- Goals of the catheterization (diagnostic vs. therapeutic, life-extending vs. palliative)
- Acceptable interventions for procedure-related complications
- Plans if the procedure reveals findings requiring urgent intervention
The principle of "respect for persons" should guide every DNR discussion—there is no one-size-fits-all solution 5. A patient-specific and situation-specific approach is required for each cardiac catheterization 5.