Predictive qrs detection and r-to-r timing systems and methods

A computer implemented method for operating intra-aortic balloon pumps, the method comprising:

• initializing values of one or more parameters based on an identity of a patient;
• receiving a first electrocardiogram signal of the patient;
• generating a first power spectrum signal by decomposing the received first electrocardiogram signal;
• selecting a first portion of the generated first power spectrum signal;
• dividing the selected first portion of the generated first power spectrum signal into one or more subsets comprising sub-portions of the selected first portion of the generated first power spectrum signal;
• for each subset in the one or more subsets of the selected first portion of the generated first power spectrum signal:
• computing a peak value of the sub-portion of the selected first portion of the first power spectrum signal falling within the subset;
• and
• storing the computed peak value of the subset in a first threshold buffer;
• and
• computing a first adaptive threshold R-peak value based on the computed peak values stored in the first threshold buffer.

A computer implemented method for operating intra-aortic balloon pumps, the method comprising:

• initializing values of one or more parameters based on an identity of a patient;
• receiving a first electrocardiogram signal of the patient;
• generating a first power spectrum signal by decomposing the received first electrocardiogram signal;
• selecting a first portion of the generated first power spectrum signal;
• dividing the selected first portion of the generated first power spectrum signal into one or more subsets comprising sub-portions of the selected first portion of the generated first power spectrum signal;
• for each subset in the one or more subsets of the selected first portion of the generated first power spectrum signal:
• computing a peak value of the sub-portion of the selected first portion of the first power spectrum signal falling within the subset;
• and
• storing the computed peak value of the subset in a first threshold buffer;
• computing a first adaptive threshold R-peak value based on the computed peak values stored in the first threshold buffer;
• receiving a second electrocardiogram signal of the patient;
• generating a second power spectrum signal by decomposing the received second electrocardiogram signal;
• selecting a first portion of the generated second power spectrum signal;
• dividing the selected first portion of the generated second power spectrum signal into one or more second subsets comprising sub-portions of the selected first portion of the generated second power spectrum signal;
• for each subset in the one or more second subsets of the selected first portion of the generated second power spectrum signal:
• computing a peak value of the sub-portion of the selected first portion of the second power spectrum signal falling within the subset;
• and
• storing the computed peak value of the subset in a second threshold buffer;
• computing a second adaptive threshold R-peak value based on the computed peak values stored in the second threshold buffer;
• computing an R-to-R time interval value indicative of timing between two successive R-peaks in successive QRS complexes in the received second electrocardiogram signal of the patient based on:
• the computed first adaptive threshold R-peak value, or the computed second adaptive threshold R-peak value, or both;
• generating a prediction of timing of a future R-peak based on the computed R-to-R time interval value indicative of timing between two successive R-peaks in successive QRS complexes;
• and
• triggering an inflation of at least one intra-aortic balloon pump based on the generated prediction of timing of the future R-peak.