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Page 6 of 20 Pardo et al. Vessel Plus 2022;6:36 https://dx.doi.org/10.20517/2574-1209.2021.120

Table 2. Timing, nature, and treatment
Number of
Criteria - subcomponents
publications
New-onset Continuous AF at any time before discharge 9
Occurring during the procedure or within 30 days post-procedure 6
Continuous AF at any time postoperatively 4
Occurring during the procedure or within 30 days post-procedure, w/o history of previous AF 2
Continuous AF of any duration at any time postoperatively 2
Any documented AF in the first 7 days following surgery, w/o history of previous AF 1
Any episodes that are brief, paroxysmal, and asymptomatic 1
ICD-9 code discharge diagnosis code of AF, not present before admission 1
Occurring during the procedure or within 3 days post-procedure 1
Early onset Occurring in the surgical department 2
Any AF episode diagnosed by a physician during the hospital stay 1
ICD-9 code of 427.31 or ICD-10 code (I48.0, I48.1, I48.2, or I48.91) within admission or post- 1
procedure
Any documented AF in the first 6 days following surgery 1
Any documented AF in the first 7 days following surgery 1
Occurring during the procedure or within 14 days post-procedure 1
Occurring during the procedure or within 9 days post-procedure 1
Occurring during the procedure or within 10 days post-procedure 1
Late-onset Occurring 3 months after the procedure 1
Occurring during the rehabilitation period 1
Occurring during rehabilitation period and within 20 ± 5 days 1
(Transplant): occurring after discharge, minimum 14 days post-procedure, w/o history of previous AF 1
(Transplant): occurring after discharge, minimum 9 days post-transplant, w/o history of previous AF 1
Silent Post-procedure, only detected by continuous ECG for pts w/o history of previous AF 1
Within 7 days post-procedure, only detected by Holter for pts w/o history of previous AF 1
Recurrent POAF recurrence: continuous AF at any time during or after the operation 3
Treatment AF requiring treatment 13
Within 48 h post-procedure, confirmed by ECG, resulting in the need for intervention 1
Any documented AF in the first 7 days following surgery and requiring treatment 1
POAF general definitions comprised of 54 publications broken down into different criteria along with the number of publications mentioning a
specific subcomponent. One publication may mention more than one subcomponent, but each subcomponent is composed of different
[3,15,19-70]
publications. The time frame for this table spans from 2001-2020 .

Between societies and independent manuscripts, the most variability was seen between first POAF
observation timing and diversity of general definitions with only 24% (n = 8/33) of this criteria’s
subcomponents in agreement.

Part II - guideline recommendations for POAF patient management
Across the ten professional societies guidelines, only eight included one or more management strategies for
POAF classified based on the three listed strategies. Of these eight societies, three did not independently
define postoperative atrial fibrillation but referred to another published atrial fibrillation definition. Five
societies provided risk assessment guidelines [Table 6], seven societies published POAF prevention
guidelines [Table 5], and all eight societies provided POAF management guidelines [Table 7].

In evaluating POAF risk, eight risk characteristics were commonly identified (> 50% consensus); all of these
risk factors were viewed as non-modifiable, including preoperative atrial arrhythmias, valvular disease,