Cycle lengths (mean and SD) of bipolar AEGs recorded from the RA, BB, and PLA during AF
| Patient . | 1 . | 2 . | 3 . | 4 . | 5 . | 6 . | 7 . | 8 . | |
|---|---|---|---|---|---|---|---|---|---|
| RA | CL mean (ms) | 217 | 208 | 200 | 159 | 174 | 169b | 208 | 168b |
| SD (ms) | 53 | 23 | 26 | 31 | 18 | 13 | 28 | 12 | |
| BB | CL mean (ms) | 208b | 190b | 160b | a | 146 | 165b | 182b | 166b |
| SD (ms) | 10 | 19 | c | 19 | 7 | 13 | 12 | ||
| PLA | CL mean (ms) | 200b | 180b | a | 144b | 145b | 168b | 187b | 187 |
| SD (ms) | c | c | 5 | 3 | 3 | 15 | 23 | ||
| Patient . | 1 . | 2 . | 3 . | 4 . | 5 . | 6 . | 7 . | 8 . | |
|---|---|---|---|---|---|---|---|---|---|
| RA | CL mean (ms) | 217 | 208 | 200 | 159 | 174 | 169b | 208 | 168b |
| SD (ms) | 53 | 23 | 26 | 31 | 18 | 13 | 28 | 12 | |
| BB | CL mean (ms) | 208b | 190b | 160b | a | 146 | 165b | 182b | 166b |
| SD (ms) | 10 | 19 | c | 19 | 7 | 13 | 12 | ||
| PLA | CL mean (ms) | 200b | 180b | a | 144b | 145b | 168b | 187b | 187 |
| SD (ms) | c | c | 5 | 3 | 3 | 15 | 23 | ||
Patients' AEG characteristics during AF using conventional ECG (Patients 1–3) and digital (Patients 4–8) recordings.
AF, atrial fibrillation; AEG, atrial electrograms; RA, right atrial appendage; BB, Bachmann's bundle; PLA, posterior left atrium; CL, cycle length; ms, millisecond; SD, standard deviation.
aSites with absent AEG recordings indicative of dislodgement of atrial leads.
bSite with regular cycle lengths (see Methods section for definition of regular CL).
cWithin resolution of measurement with manual callipers.
Cycle lengths (mean and SD) of bipolar AEGs recorded from the RA, BB, and PLA during AF
| Patient . | 1 . | 2 . | 3 . | 4 . | 5 . | 6 . | 7 . | 8 . | |
|---|---|---|---|---|---|---|---|---|---|
| RA | CL mean (ms) | 217 | 208 | 200 | 159 | 174 | 169b | 208 | 168b |
| SD (ms) | 53 | 23 | 26 | 31 | 18 | 13 | 28 | 12 | |
| BB | CL mean (ms) | 208b | 190b | 160b | a | 146 | 165b | 182b | 166b |
| SD (ms) | 10 | 19 | c | 19 | 7 | 13 | 12 | ||
| PLA | CL mean (ms) | 200b | 180b | a | 144b | 145b | 168b | 187b | 187 |
| SD (ms) | c | c | 5 | 3 | 3 | 15 | 23 | ||
| Patient . | 1 . | 2 . | 3 . | 4 . | 5 . | 6 . | 7 . | 8 . | |
|---|---|---|---|---|---|---|---|---|---|
| RA | CL mean (ms) | 217 | 208 | 200 | 159 | 174 | 169b | 208 | 168b |
| SD (ms) | 53 | 23 | 26 | 31 | 18 | 13 | 28 | 12 | |
| BB | CL mean (ms) | 208b | 190b | 160b | a | 146 | 165b | 182b | 166b |
| SD (ms) | 10 | 19 | c | 19 | 7 | 13 | 12 | ||
| PLA | CL mean (ms) | 200b | 180b | a | 144b | 145b | 168b | 187b | 187 |
| SD (ms) | c | c | 5 | 3 | 3 | 15 | 23 | ||
Patients' AEG characteristics during AF using conventional ECG (Patients 1–3) and digital (Patients 4–8) recordings.
AF, atrial fibrillation; AEG, atrial electrograms; RA, right atrial appendage; BB, Bachmann's bundle; PLA, posterior left atrium; CL, cycle length; ms, millisecond; SD, standard deviation.
aSites with absent AEG recordings indicative of dislodgement of atrial leads.
bSite with regular cycle lengths (see Methods section for definition of regular CL).
cWithin resolution of measurement with manual callipers.
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