scholarly journals 512 Long-term survival in patients with post-operative atrial fibrillation after cardiac surgery: analysis from a prospective-cohort study

2021 ◽  
Vol 23 (Supplement_G) ◽  
Author(s):  
Jacopo Marazzato ◽  
Roberto De Ponti ◽  
Paolo Verdecchia ◽  
Federico Blasi ◽  
Michele Golino ◽  
...  

Abstract Aims Post-operative atrial fibrillation (POP AF) is frequent in patients who undergo cardiac surgery. However, its prognostic impact in the long-term remains unclear. Methods and results We followed for an average of 10 ± 3 years 1386 patients who underwent a variety of cardiac surgical procedures (cardiac transplantation and surgery for heart failure included) while they were in sinus rhythm. Among 1178 patents without a history of AF, 726 (62%) did not develop AF during the entire duration of the study and 452 (38%) developed new-onset POP AF during the first 30 peri-operative days after heart surgery. Other 125 patients with a positive history of paroxysmal or persistent AF were in sinus rhythm at the time of surgery and 87 of them (70%) developed POP AF. Finally, 83 patients had permanent AF when they underwent surgery. All-cause mortality was the primary outcome of the study. We tested the associations of potential determinants with all-cause mortality using univariable and multivariable statistical analyses by means of Cox proportional hazard models. Overall, 473 patients (34%) died during a long-term follow-up. Compared with patients who never developed AF, neither the patients with new-onset POP AF [adjusted HR = 1.31 (95% CI: 0.90–1.89); P = 0.1609], nor those with history of AF at the time of surgery (adjusted HR = 1.33, 95% CI: 0.71–2.49; P = 0.3736) showed a significantly increased risk of mortality (Figure 1). In new-onset POP AF patients, oral anticoagulation was not associated with mortality [adjusted HR = 1.13 (95% CI: 0.83–1.54), P = 0.4299]. Conclusions In this huge prospective cohort of patients who underwent different types of heart surgery, POP AF was not associated with an increased risk of mortality. In this setting, the role of long-term anticoagulation remains unclear.

2021 ◽  
Vol 8 (12) ◽  
pp. 169
Author(s):  
Jacopo Marazzato ◽  
Sergio Masnaghetti ◽  
Roberto De Ponti ◽  
Paolo Verdecchia ◽  
Federico Blasi ◽  
...  

Background: Post-operative (POP) atrial fibrillation (AF) is frequent in patients who undergo cardiac surgery. However, its prognostic impact in the long term remains unclear. Methods: We followed 1386 patients who underwent cardiac surgery for an average of 10 ± 3 years. According to clinical history of AF before and after surgery, four subgroups were identified: (1) patients with no history of AF and without episodes of AF during the first 30 days after surgery (control or Group 1, n = 726), (2) patients with no history of AF before surgery in whom new-onset POP AF was detected during the first 30 days after surgery (new-onset POP AF or Group 2, n = 452), (3) patients with a history of paroxysmal/persistent AF before cardiac surgery (Group 3, n = 125, including 87 POP AF patients and 38 who did not develop POP AF), and (4) patients with permanent AF at the time of cardiac surgery (Group 4, n = 83). All-cause mortality was the primary outcome of the study. We tested the associations of potential determinants with all-cause mortality using univariable and multivariable statistical analyses. Results: Overall, 473 patients (34%) died during follow-up. After adjustment for multiple confounders, new-onset POP AF (hazard ratio (HR) = 1.31, 95% confidence interval (CI): 0.90–1.89; p = 0.1609), history of paroxysmal/persistent AF before cardiac surgery (HR = 1.33, 95% CI: 0.71–2.49; p = 0.3736), and permanent AF (Group 4) (HR = 1.55, 95% CI 0.82–2.95; p = 0.1803) were not associated with a significantly increased risk of mortality when compared with Group 1 (patients with no history of AF and without episodes of AF during the first 30 days after surgery). In new-onset POP AF patients, oral anticoagulation was not associated with mortality (HR = 1.13, 95% CI: 0.83–1.54; p = 0.4299). Conclusions: In this cohort of patients who underwent different types of heart surgery, POP AF was not associated with an increased risk of mortality. In this setting, the role of long-term anticoagulation remains unclear.


Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Marcella Meykler ◽  
Sahar Abdelmoneim ◽  
Emelie Rosenberg ◽  
Bimal Patel ◽  
Bharath Reddy ◽  
...  

Introduction: New onset postoperative atrial fibrillation (POAF) is a common complication after cardiac surgery that is associated with an increased risk for stroke and all-cause mortality. Long term data on POAF recurrence and anticoagulation remains sparse. We aimed to characterize the natural progression and recurrence of new onset POAF during a long-term follow up post cardiac surgery utilizing continuous event monitoring. Methods: This is a single-center, prospective observational study evaluating 42 patients undergoing cardiac surgery and diagnosed during indexed admission with new onset, transient POAF who were discharged in sinus rhythm between May 2015 and December 2019. Prior to discharge, all patients received implantable loop recorders (ILR) for continuous monitoring. Study outcomes were the presence and timing of AF recurrence (first and repeated AF recurrence), all-cause mortality and cerebrovascular accidents (CVA). Results: Forty-two patients [mean age 67.6± 9.6 years, 74% male, mean CHADS 2- VASc 3.5±1.5] were evaluated during a mean follow-up of 1.7 ± 1.2 years. AF recurrence after discharge occurred in 30 patients (71%). Twenty-four of these 30 patients (80%) had their first AF recurrence within the first month, 3 (10%) patients during months 1-12, and 3 (10%) patients beyond 1 year. Repeated AF recurrence occurred in 13 (43%) patients between 1 and 12-months. Beyond one year of follow-up, 5 (17%) patients had either their first AF recurrence (3) or repeated AF recurrence (2). During follow-up, there was one death ((-) AF recurrence) and two CVAs ((+) AF recurrence). Conclusions: In this study of continuous monitoring with ILR , the recurrence of AF in patients who develop transient POAF is common. Seventy percent of patients had either their first AF recurrence 6 (20%) or repeated episodes of recurrent AF 15 (50%) after 1-month post-operative follow-up.


Author(s):  
Jaspreet Arora ◽  
Arjun Nair ◽  
Leigh Cagino ◽  
Le Du ◽  
Mikhail Torosoff

Background: We hypothesized that patients with new onset atrial fibrillation (AFib) following cardiac or non-cardiac surgery have similar echocardiographic features, regardless of the type of surgery. Methods: Study cohort included 4562 consecutive patients without history of atrial fibrillation undergoing general, thoracic or cardiovascular surgeries at a single tertiary academic medical center. Retrospective chart and echocardiogram review was performed. Chi-square, logistic regression, and analysis of variance were performed. Long-term all cause mortality was determined through Social Security Death Index. The study was approved by the institutional IRB. Results: Post-operative AFib was noted in 24% (275/1141) after cardiac surgery, 1.2 % (10/804) after thoracic non-cardiac surgery, and 0.7% (18/2617) after general non-cardiac non-thoracic surgery (p<0.0001). On available echocardiograms, 18% (48/264) had LV dilatation and 38% (98/261) had moderate or severe LV dysfunction. The left atrium was dilated in 53% (139/260). Moderate or severe tricuspid regurgitation was noted in 11% (15/128), mitral regurgitation in 28% (45/16), mitral stenosis in 13% (11/82), aortic insufficiency in 27% (37/135), and aortic stenosis in 63% (19/135). When adjusted for the presence of coronary artery disease, valvular disease, age, and gender, only aortic valve stenosis remained an important independent predictor of post-operative atrial fibrillation in non-cardiac surgery patients, HR=13.9 (95%CI 1.5-132.3, p<0.022). Conclusion: Despite significantly increased prevalence of new onset AFib after cardiac surgery, pre-existing cardiovascular conditions, specifically aortic valve stenosis, confer an increased risk of post-operative atrial fibrillation rather than the procedure itself. Improved resource utilization can be expected if post-operative ECG monitoring is limited to the high risk patients, identifiable during peri-operative screening. Prospective studies of this important subject are needed.


BMJ Open ◽  
2020 ◽  
Vol 10 (9) ◽  
pp. e039600
Author(s):  
Ji Hyun Lee ◽  
Sun-Hwa Kim ◽  
Wonjae Lee ◽  
Youngjin Cho ◽  
Si-Hyuck Kang ◽  
...  

ObjectiveTo investigate the long-term prognostic implications of transient new-onset atrial fibrillation (AF) in patients with acute myocardial infarction (AMI).DesignRetrospective observational study.SettingSingle tertiary centre.ParticipantsThis study included 2523 patients who presented with AMI from 3 June 2003 to 24 February 2015, after the exclusion of those with prior AF or in-hospital death.Outcome measuresPatients were divided into three groups according to the occurrence and type of new-onset AF: (1) sinus rhythm (SR) group; (2) paroxysmal AF (PaAF: AF converted to SR prior to discharge) group and (3) persistent AF (PeAF: AF persisted during the hospitalisation) group. Post-discharge all-cause mortality and stroke incidences were compared between the groups.ResultsNew-onset AF was observed in 271 patients (10.7%; PaAF: 230, PeAF: 41). The median follow-up period was 7.2 years (IQR: 5.2–9.4). The incidence of all-cause death and stroke was highest in the PeAF group, followed by the PaAF and SR groups (all-cause mortality: 48.8% vs 26.5% vs 14.7%, p<0.001; stroke 22.0% vs 8.3% vs 4.4%, p<0.001). In the multivariable analysis, PaAF and PeAF were associated with an increased risk of stroke (PaAF, HR: 1.972, 95% CI: 1.162–3.346; PeAF, HR: 5.160, CI: 2.242–11.873) compared with SR. The PaAF group showed a higher incidence of post-discharge AF than the SR group (29.1% vs 4.2%, p<0.001).ConclusionsNew-onset AF following AMI is associated with poor long-term outcomes. Even when AF episodes are brief and are converted to SR, new-onset AF remains associated with an increased risk of recurrent AF and stroke.


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
A Taha ◽  
A Jeppsson ◽  
L Friberg ◽  
S Nielsen ◽  
A Ahlsson ◽  
...  

Abstract Background New-onset postoperative atrial fibrillation (POAF) is a common complication after cardiac surgery, but the prognostic implications are not settled. In contrast to previous reports, a recent Danish study in coronary bypass surgery (CABG) patients (Butt et al. JAMA Cardiol 2018) did not show any increased risk for thromboembolic complications in POAF patients. Purpose To compare long-term outcome in patients with vs. without POAF after CABG. Methods All CABG patients in Sweden 2005–2015 (n=38040) were included in a retrospective population-based cohort study. Data from the SWEDEHEART registry, the National Patient Registry and the National Population Registry were merged. POAF was defined as any new-onset atrial fibrillation (AF) episode up to the 30thpostoperative day. Inverse Probability Treatment Weighting (IPTW) adjusted Cox regression models were used to compare outcome variables after the first 30 postoperative days until the end of follow-up (median 5 years, range 0–10). The models were adjusted for age, gender, CHA2DS2-VASc score, co-morbidity, and medications. Results The mean age of the entire cohort was 68 years, 79% were men and 90% had a CHA2DS2-VASc score ≥2. The incidence of POAF was 28.5% (10845/38040). During follow-up POAF, patients had a significantly higher adjusted risk for all-cause mortality [Hazard Ratio (HR) 1.16 (95% CI 1.09–1.24)], ischemic stroke [HR 1.19 (1.09–1.30)], transient ischemic attack [HR 1.17 (1.03–1.33)], pulmonary embolism [HR 1.24 (1.01–1.54)], myocardial infarction [HR 1.14 (1.04–1.25)], heart failure hospitalizations [HR.1.46 (1.35–1.59)] and recurrent AF [HR 4.33 (4.09–4.65)]. Conclusions POAF was in this comparatively large study associated with increased risk for mortality and morbidity during long-term follow-up after CABG and is hence not a trivial complication.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
M.K Wang ◽  
P Chen ◽  
P Meyre ◽  
M.Z Ali ◽  
R Heo ◽  
...  

Abstract Background Perioperative atrial fibrillation (POAF) after cardiac surgery has been associated with an increased risk of stroke. However, many previous studies have not systematically excluded patients with pre-existing AF. As such, the association between new-onset POAF and stroke risk has not been well established. Purpose To perform a systematic review and meta-analysis on the short and long-term risks of stroke in patients experiencing new-onset POAF after cardiac surgery. Methods We searched MEDLINE, EMBASE, and the Cochrane Library databases for studies comparing the risk of stroke in patients with versus without new-onset POAF after cardiac surgery. Studies were included in our review if they enrolled ≥100 patients and defined POAF as new-onset AF in patients with no history of preoperative AF. Data were independently extracted in duplicate. The quality of studies was assessed using the Newcastle Ottawa Scale. Random-effects meta-analysis was used to calculate summary risk ratios. Short-term stroke risk was calculated using events occurring either in-hospital or ≤30 days after surgery, and long-term risk was calculated using events occurring &gt;30 days after surgery. Results After reviewing 11,791 citations, 46 studies met the inclusion criteria. These studies included 364,822 patients, of which 76,388 (20.9%) developed new-onset POAF. The incidence of stroke was higher among patients with POAF versus no POAF (n=44 studies; incidence 2.76% vs. 1.53%; relative risk (RR) 1.91, 95% CI 1.65–2.23; I2 = 78%). A sensitivity analysis of high-quality studies alone yielded similar results (n=9 studies; RR 1.74, 95% CI 1.31–2.30; I2 = 88%). Patients with POAF had a higher incidence of stroke both in the short-term (n=35 studies; 2.71% vs. 1.36%; RR 2.13, 95% CI 1.81–2.51; I2 = 69%) and long-term (n=20 studies; 1.6 vs. 1.0 per 100 patient-years; RR 1.39, 95% CI 1.24–1.57; I2 = 27%). The risk of stroke was increased in POAF patients across all types of cardiac surgery performed, including isolated CABG (n=19 studies; RR 1.93, 95% CI 1.60–2.32; I2 = 62%), isolated transcatheter aortic valve implantation (n=7 studies; RR 1.86, 95% CI 1.32–2.63; I2 = 0%), and studies including multiple procedure types (n=16 studies; RR 1.90, 95% CI 1.44–2.51; I2 = 89%). Conclusion New-onset POAF after cardiac surgery is associated with an increased risk of stroke, both in the short and long term. The absolute risk difference is small, and randomized trials are needed to assess the efficacy and safety of treatment interventions in this patient population. Funding Acknowledgement Type of funding source: None


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
P Huang ◽  
C Liu

Abstract Background Lower systolic blood pressure (SBP) at admission or discharge was associated with poor outcomes in patients with heart failure and preserved ejection fraction (HFpEF). However, the optimal long-term SBP for HFpEF was less clear. Purpose To examine the association of long-term SBP and all-cause mortality among patients with HFpEF. Methods We analyzed participants from the Treatment of Preserved Cardiac Function Heart Failure with an Aldosterone Antagonist (TOPCAT) study. Participants had at least two SBP measurements of different times during the follow-up were included. Long-term SBP was defined as the average of all SBP measurements during the follow-up. We stratified participants into four groups according to long-term SBP: &lt;120mmHg, ≥120mmHg and &lt;130mmHg, ≥130mmHg and &lt;140mmHg, ≥140mmHg. Multivariable adjusted Cox proportional hazards models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CI) for all-cause mortality associated with SBP level. To assess for nonlinearity, we fitted restricted cubic spline models of long-term SBP. Sensitivity analyses were conducted by confining participants with history of hypertension or those with left ventricular ejection fraction≥50%. Results The 3338 participants had a mean (SD) age of 68.5 (9.6) years; 51.4% were women, and 89.3% were White. The median long-term SBP was 127.3 mmHg (IQR 121–134.2, range 77–180.7). Patients in the SBP of &lt;120mmHg group were older age, less often female, less often current smoker, had higher estimated glomerular filtration rate, less often had history of hypertension, and more often had chronic obstructive pulmonary disease and atrial fibrillation. After multivariable adjustment, long-term SBP of 120–130mmHg and 130–140mmHg was associated with a lower risk of mortality during a mean follow-up of 3.3 years (HR 0.65, 95% CI: 0.49–0.85, P=0.001; HR 0.66, 95% CI 0.50–0.88, P=0.004, respectively); long-term SBP of &lt;120mmHg had similar risk of mortality (HR 1.03, 95% CI: 0.78–1.36, P=0.836), compared with long-term SBP of ≥140mmHg. Findings from restricted cubic spline analysis demonstrate that there was J-shaped association between long-term SBP and all-cause mortality (P=0.02). These association was essentially unchanged in sensitivity analysis. Conclusions Among patients with HFpEF, long-term SBP showed a J-shaped pattern with all-cause mortality and a range of 120–140 mmHg was significantly associated with better outcomes. Future randomized controlled trials need to evaluate optimal long-term SBP goal in patients with HFpEF. Funding Acknowledgement Type of funding source: Foundation. Main funding source(s): China Postdoctoral Science Foundation Grant (2019M660229 and 2019TQ0380)


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