Consistency monitoring for ECG shock advisory decisions

1. A defibrillator, comprising:

an ECG monitor configured for monitoring an ECG waveform of a heart of a patient; and

a defibrillation controller operably connected to the ECG monitor to segment the ECG waveform,

wherein, for each ECG waveform segment of a series of ECG waveform segments, the defibrillation controller generates an ECG shock advisory between a shock decision and a no-shock decision, and

wherein the defibrillation controller monitors a consistency of the ECG shock advisories between consistent shock decisions and consistent no-shock decisions.

2. The defibrillator of claim 1 , wherein each ECG shock advisory is between the shock decision, the no-shock decision and a shock indecision.

3. The defibrillator of claim 2 , wherein the consistency of the ECG shock advisories is between consistent shock decisions, consistent no-shock decisions and inconsistent shock decisions.

4. The defibrillator of claim 1 , wherein, to monitor the consistency of the ECG shock advisories, the defibrillation controller calculates a consistency score of the ECG shock advisories.

5. The defibrillator of claim 4 , wherein, to monitor the consistency of the ECG shock advisories, the defibrillation controller compares the consistency score to at least one of a consistent shock threshold and a consistent no-shock threshold.

6. The defibrillator of claim 5 , wherein the defibrillation controller generates a consistency shock advisory responsive to the comparison of the consistency score to at least one of the consistent shock threshold and the consistent no-shock threshold.

7. The defibrillator of claim 6 , wherein the defibrillation controller generates a defibrillation shock advisory as a logical combination of the consistency shock advisory and at least one ECG shock advisory.

8. The defibrillator of claim 5 , wherein the defibrillation controller generates a consistency shock indication of the comparison of the consistency score to at least one of the consistent shock threshold and the consistent no-shock threshold.

9. The defibrillator of claim 1 , wherein the defibrillator is at least one of an automatic external defibrillator or an advanced life support defibrillator.

10. The defibrillator of claim 1 , wherein the defibrillator comprises at least one of an automatic external defibrillator, an advanced life support defibrillator or a patient monitor.

11. A defibrillation controller, comprising:

a shock advisor configured for segmenting an ECG waveform of a heart of a patient into a series of ECG waveform segments, wherein, for each ECG waveform segment of the series of ECG waveform segments, the shock advisor generates an ECG shock advisory between a shock decision and a no-shock decision; and

a consistency monitor operably connected to the shock advisor and configured to monitor a consistency of the ECG shock advisories between consistent shock decisions and consistent no-shock decisions.

12. The defibrillation controller of claim 11 , wherein the ECG shock advisory is between a shock decision, a no-shock decision and a shock indecision.

13. The defibrillation controller of claim 11 , wherein the consistency of the ECG shock advisories is between consistent shock decisions, consistent no-shock decisions and inconsistent shock decisions.

14. The defibrillation controller of claim 11 , wherein, to monitor the consistency of the ECG shock advisories, the consistency monitor calculates a consistency score of the ECG shock advisories.

15. The defibrillation controller of claim 14 , wherein, to monitor the consistency of the ECG shock advisories, the consistency monitor compares the consistency score to at least one of a consistent shock threshold and a consistent no-shock threshold.

16. The defibrillation controller of claim 15 , wherein the consistency monitor generates a consistency shock advisory responsive to the comparison of the consistency score to at least one of the consistent shock threshold and the consistent no-shock threshold.

17. The defibrillation controller of claim 15 , wherein the consistency monitor generates a consistency shock indication of the comparison of the consistency score to at least one of the consistent shock threshold and the consistent no-shock threshold.

18. A method for shock advisory, comprising:

segmenting an ECG waveform into a series of ECG waveform segments;

for each ECG waveform segment of the series of ECG waveform segments, generating an ECG shock advisory between a shock decision and a no-shock decision; and

monitoring a consistency of the ECG shock advisories between consistent shock decisions and consistent no-shock decisions.

19. The method of claim 18 ,

wherein the ECG shock advisory is between a shock decision, a no-shock decision and an shock indecision; and

wherein the consistency of the ECG shock advisories is between consistent shock decisions, consistent no-shock decisions and inconsistent shock decisions.

20. The method of claim 18 ,

wherein monitoring the consistency of the ECG shock advisories includes

calculating a consistency score of the ECG shock advisories, and

comparing the consistency score to at least one of a consistent shock threshold or a consistent no-shock threshold; and

wherein the method further comprises at least one of:

(i) generating a consistency shock advisory responsive to the comparison of the consistency score to at least one of the consistent shock threshold or the consistent no-shock threshold; or

(ii) generating a consistency shock indication of the comparison of the consistency score to at least one of the consistent shock threshold or the consistent no-shock threshold.