scholarly journals The occurrence and risk factors of bradycardia after the Maze procedure in patients with atrial fibrillation and tricuspid regurgitation

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Xue Wang ◽  
Heng Gao ◽  
Chao Deng ◽  
Miaomiao Liu ◽  
Yang Yan

Abstract Objective To evaluate the occurrence and risk factors of bradycardia after the Maze procedure in patients with atrial fibrillation and tricuspid regurgitation. Methods All patients underwent mitral valve (MV) replacement and concomitant bi-atrial cut-and-sew Maze procedure along with other cardiac surgical procedures were recruited from the Department of Cardiovascular Surgery at the First Affiliated Hospital of Medical College of Xi'an Jiaotong University. According to the severity of tricuspid regurgitation, all patients were divided into mild tricuspid regurgitation group and moderate-to-severe tricuspid regurgitation group. The general clinical data, biochemical indexes, intraoperative and postoperative data were collected. The relationship between tricuspid regurgitation and sinus bradycardia after the Maze procedure was analyzed by multivariate logistic regression model. Results We enrolled 82 patients, including 24 males and 58 females. The patients had an average age of 56 ± 10 years old. There were 50 cases in mild tricuspid regurgitation group and 32 cases in moderate-to-severe tricuspid regurgitation group. Compared with the mild tricuspid regurgitation group, postoperative bradyarrhythmia (41% vs. 14%), pre-discharge bradyarrhythmia (63% vs. 14%), postoperative sinus bradycardia (34% vs. 10%) and pre-discharge sinus bradycardia (63% vs. 10%) in moderate-to-severe tricuspid regurgitation group were significantly increased (P < 0.01). In moderate-to-severe tricuspid regurgitation, the risk of sinus bradycardia increased after the Maze procedure (OR = 1.453, 95% CI 1.127–1.874), area under ROC curve was 0.81, the Jordan index was 0.665. Conclusion The severity of tricuspid regurgitation may be an important factor affecting sinus bradycardia after the Maze procedure. It can be considered as a factor to predict sinus bradycardia after the Maze procedure.

ESC CardioMed ◽  
2018 ◽  
pp. 2173-2177
Author(s):  
Chawannuch Ruaengsri ◽  
Matthew R. Schill ◽  
Richard B. Schuessler ◽  
Ralph J. Damiano

Surgical ablation for atrial fibrillation was introduced in 1987 and has since become well established as a treatment option for patients with symptomatic atrial fibrillation refractory to antiarrhythmic drugs and/or catheter ablation or patients who are having concomitant cardiac surgical procedures. The Cox–Maze procedure has been improved upon by modern variations using ablation devices. More limited ablation procedures and hybrid procedures have been introduced, but their efficacy requires further investigation.


2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Jiangang Wang ◽  
Songnan Li ◽  
Qing Ye ◽  
Xiaolong Ma ◽  
Yichen Zhao ◽  
...  

Abstract Background This study aimed to describe the mid-term outcomes of different treatments in patients with atrial fibrillation caused tricuspid regurgitation. Methods A retrospective study of patients diagnosed as atrial fibrillation caused moderate-severe tricuspid regurgitation undergoing ablation (n = 411) were reviewed. The surgical cohort (n = 114) underwent surgical ablation and tricuspid valve repair; the catheter cohort (n = 279) was selected from those patients who had catheter ablation. Results The estimated actuarial 5-year survival rates were 96.8% (95% CI: 92.95–97.78) and 92.0% (95% CI: 85.26–95.78) in the catheter and surgical cohort, respectively. Tethering height was showed as independent risk factors for recurrent atrial fibrillation and tricuspid regurgitation in both cohorts. A matched group analysis using propensity-matched was conducted after categorizing total patients by tethering height < 6 mm and ≥ 6 mm. Kaplan–Meier analysis showed in patients with tethering height < 6 mm, there were no differences in survival from mortality, stroke, recurrent atrial fibrillation and tricuspid regurgitation between two groups. In patients with tethering height ≥ 6 mm, there were significantly higher cumulative incidence of stroke (95% CI, 0.047–0.849; P = 0.029), recurrent atrial fibrillation (95% CI, 0.357–09738; P = 0.039) and tricuspid regurgitation (95% CI, 0.359–0.981; P = 0.042) in catheter group. Conclusions Atrial fibrillation caused tricuspid regurgitation resulted in less leaflets coaptation, which risk the recurrence of atrial fibrillation and tricuspid regurgitation. Patients whose tethering height was less than 6 mm showed satisfying improvement in tricuspid regurgitation with the restoration of sinus rhythm after catheter ablation. However, in patients with severe leaflets tethering, the results favored surgical over catheter.


2020 ◽  
Author(s):  
Jiangang Wang ◽  
Songnan Li ◽  
Qing Ye ◽  
Xiaolong Ma ◽  
Yichen Zhao ◽  
...  

Abstract Background This study aimed to describe the mid-term outcomes of different treatments in patients with atrial fibrillation caused tricuspid regurgitation. Methods A retrospective study of patients diagnosed as atrial fibrillation caused moderate-severe tricuspid regurgitation undergoing ablation (n = 411) were reviewed. The surgical cohort (n = 114) underwent surgical ablation and tricuspid valve repair; the catheter cohort (n = 279) was selected from those patients who had catheter ablation. Results The estimated actuarial 5-year survival rates were 96.8% (95% CI: 92.95-97.78) and 92.0% (95% CI: 85.26-95.78) in the catheter and surgical cohort, respectively. Tethering height was showed as independent risk factors for recurrent atrial fibrillation and tricuspid regurgitation in both cohorts. A matched group analysis using propensity-matched was conducted after categorizing total patients by tethering height < 6mm and >= 6mm. Kaplan–Meier analysis showed in patients with tethering height < 6mm, there were no differences in survival from mortality, stroke, recurrent atrial fibrillation and tricuspid regurgitation between two groups. In patients with tethering height >= 6mm, there were significantly higher cumulative incidence of stroke (95% CI, 0.047–0.849; P = 0.029), recurrent atrial fibrillation (95% CI, 0.357–09738; P = 0.039) and tricuspid regurgitation (95% CI, 0.359–0.981; P = 0.042) in catheter group. Conclusions Atrial fibrillation caused tricuspid regurgitation resulted in less leaflets coaptation, which risk the recurrence of atrial fibrillation and tricuspid regurgitation. Patients whose tethering height was less than 6mm showed satisfying improvement in tricuspid regurgitation with the restoration of sinus rhythm after catheter ablation. However, in patients with severe leaflets tethering, the results favored surgical over catheter.


2020 ◽  
Vol 41 (Supplement_2) ◽  
Author(s):  
S Romano ◽  
D Dell'atti ◽  
R Judd ◽  
R Kim ◽  
J Weinsaft ◽  
...  

Abstract Introduction Tricuspid regurgitation imposes a volume overload on the right ventricle (RV) that can lead to progressive RV dilation and dysfunction. Overt RV dysfunction is associated with poor prognosis and increased operative risk. Abnormalities of myocardial strain may provide the earliest evidence of ventricular dysfunction. CMR feature-tracking techniques now allow assessment of strain from routine cine-images, without specialized pulse sequences. Whether abnormalities of RV strain measured using CMR feature-tracking have prognostic value in patients with tricuspid regurgitation is unknown Purpose To evaluate the prognostic value of CMR feature-tracking derived RV free wall longitudinal strain (RVFWLS) in a large multicenter population of patients with severe tricuspid regurgitation. Methods Consecutive patients with severe tricuspid regurgitation undergoing CMR at four US medical centers were included in this study. Feature-tracking RVFWLS was calculated from 4 chamber cine-views (Figure-left panel). The primary endpoint was all-cause death. Cox proportional hazards regression modeling was used to examine the independent association between RVFWLS and death. The incremental prognostic value of RVFWLS was assessed in nested models. Results Of the 406 patients in this study,115 died during a median follow-up of 8.8 years. By Kaplan-Meier-analysis, patients with RVFWLS ≥median (−16%) had significantly reduced event free survival compared to those with RVFWLS &lt; median (log-rank p&lt;0.001) (Figure-right panel). By Cox multivariable regression modeling, each 1% worsening in RVFWLS was associated with a 13% increased risk-of-death after adjustement for clinical and imaging risk factors (HR=1.13 per %; p&lt;0.001). Addition of RVFWLS in this model resulted in significant-improvement in the global-chi-square (26 to 65; p&lt;0.0001). Conclusions CMR feature-tracking derived RVFWLS is an independent predictor of mortality in patients with severe tricuspid regurgitation, incremental to common clinical and imaging risk factors. Funding Acknowledgement Type of funding source: None


2019 ◽  
Vol 40 (Supplement_1) ◽  
Author(s):  
B Alushi ◽  
F Beckhoff ◽  
D M Leistner ◽  
B E Staehli ◽  
M Jamaluddin ◽  
...  

Abstract Background/Introduction Severe tricuspid regurgitation (TR) is associated with progressive right atrial (RA) and ventricular (RV) dilation, dysfunction and increased mortality. Risk factors impacting the long-term prognosis in patients with severe TR are largely undetermined. Purpose Herein, we aimed to identify risk factors associated with long-term mortality in patients with severe TR and implement a novel risk stratification strategy based on an individual five-year mortality prediction score. Methods From January 2013 to December 2017, 1238 patients with severe functional TR were enrolled in the TRuE-registry, of which 914 with a complete dataset were included in the present study. Echocardiographic quantification of RV-function and size included measurements of tricuspid annular plane systolic excursion (TAPSE), the end-diastolic basal (RVDbasal) and longitudinal diameters (RVDlong) and the RA-volume index (RAVI). The cohort was randomly divided into a development (n=610) and validation (n=304) sample. A risk stratification model was developed using a multivariable Cox regression. Results The variables statistically significant to predict five-year-mortality, included in the final model and used as score parameters were: age, COPD, dialysis, pulmonary artery systolic pressure, RAVI, TAPSE RVDbasal, RVDlong and systolic hepatic vein flow reversal (sHVFR). Progressive enlargement of RV and RA and concomitant sHVFR was associated with higher values of hazard ratios (HR, Figure A). Based on the HR values, a risk score with 3 categories was developed (Figure B): low (0–2), intermediate (3–5), high (6–16). Among the risk groups, Kaplan Meier estimates of all-cause mortality at 5 years were 18%, 52% and 84% respectively (p<0.001; https://thetruerisk.com). The score showed good discrimination, with a concordance index of 0.75. At internal validation, a good agreement between the derivation and validation datasets indicated a good calibration of the survival curves. Implementation of a long term risk score Conclusion The present study demonstrates the prognostic impact of comorbidities and right heart remodeling on long-term mortality in patients with severe TR. The presented risk score provides an easy and accurate estimation of long-term mortality and may thus help to guide therapeutic decision-making in this difficult group of patients.


2021 ◽  
Vol 21 (1) ◽  
Author(s):  
JinGuo Xu ◽  
Jie Han ◽  
Haibo Zhang ◽  
Fei Meng ◽  
Tiange Luo ◽  
...  

Abstract Background To identify the association between tricuspid annular circumference and secondary tricuspid regurgitation and analyze the risk factors of recurrent tricuspid regurgitation after concomitant tricuspid annuloplasty during left heart surgery. Methods From October 2018 to June 2019, a total of 117 patients receiving concomitant tricuspid annuloplasty within left heart surgery were enrolled. Severity of tricuspid regurgitation was classified as 4 subtypes: normal, mild, moderate and severe. Perioperative data and mid-term outcome were collected. Tricuspid annular circumference (TAC) was measured under cardiac arrest during surgery procedure by cardioplegia. Optimal TAC and TAC index (TAC/body surface area, BSA) cutoffs of significant tricuspid annulus dilatation (moderate and severe) were obtained. Univariable and multivariable logistic regression analyses were performed to identify the risk factors of postoperative recurrent tricuspid regurgitation. The follow up period is 13–19 months (mean 15.5 ± 3.2 months). Results There was 1 patient was excluded who died after surgery. A total of 116 patients receiving tricuspid annuloplasty were included. Optimal cutoffs of significant tricuspid annulus dilatation were recommended (TAC 11.45 cm, Sensitivity 82.89%, Specificity 73.68%, AUC 0.915; TAC index 7.09 cm/m2, Sensitivity 73.68%, Specificity 85%, AUC 0.825, respectively). Based on findings of multivariable logistic regression, it has been showed that TAC index and postoperative atrial fibrillation were the independent risk factors of recurrent regurgitation after surgery. Optimal TAC index cutoff to predict recurrent tricuspid regurgitation was 7.86 cm/m2 Conclusions The severity of secondary tricuspid regurgitation is associated with the tricuspid annular circumference. The cut-offs of significant tricuspid regurgitation (more than moderate) were TAC 11.45 cm and TAC index 7.09 cm/m2, respectively. Clinically, concomitant tricuspid annuloplasty is relative safe and effective. TAC index ≥ 7.86 cm/m2 and postoperative atrial fibrillation are the risk factors of recurrent significant tricuspid regurgitation after concomitant tricuspid annuloplasty during left heart surgery.


2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Claudia Loardi ◽  
Francesco Alamanni ◽  
Claudia Galli ◽  
Moreno Naliato ◽  
Fabrizio Veglia ◽  
...  

Background. Maze procedure aims at restoring sinus rhythm (SR) and atrial contractility (AC). This study evaluated multiple aspects of AC recovery and their relationship with SR regain after ablation.Methods. 122 mitral and fibrillating patients underwent radiofrequency Maze. Rhythm check and echocardiographic control of biatrial contractility were performed at 3, 6, 12, and 24 months postoperatively. A multivariate Cox analysis of risk factors for absence of AC recuperation was applied.Results. At 2-years follow-up, SR was achieved in 79% of patients. SR-AC coexistence increased from 76% until 98%, while biatrial contraction detection augmented from 84 to 98% at late stage. Shorter preoperative arrhythmia duration was the only common predictor of SR-AC restoring, while pulmonary artery pressure (PAP) negatively influenced AC recuperation. Early AC restoration favored future freedom from arrhythmia recurrence. Minor LA dimensions correlated with improved future A/E value and vice versa. Right atrial (RA) contractility restoring favored better left ventricular (LV) performance and volumes.Conclusions. SR and left AC are two interrelated Maze objectives. Factors associated with arrhythmia “chronic state” (PAP and arrhythmia duration) are negative predictors of procedural success. Our results suggest an association between postoperative LA dimensions and “kick” restoring and an influence of RA contraction onto LV function.


2017 ◽  
Vol 24 (10) ◽  
pp. 1484-1488
Author(s):  
Muhammad Adnan Sarwar ◽  
Huma Muzaffar ◽  
Shakeel Ahmad

Objectives: To determine the frequency of different risk factors among patientsof stroke due to cerebral infarction. Study Design: Descriptive cross sectional survey. Setting:Punjab Medical College and affiliated hospitals (Allied Hospital and DHQ), Faisalabad. Durationwith Dates: Six months from June 2006 to November 2006. Methods: This was a crosssectional survey that included 195 patients with stroke due to cerebral infarction. The mainoutcome variable was frequency of different risk factors which were described as frequencydistribution table. Results: Hypertension was seen among 142 (73%) patients, followed bydiabetes mellitus in 83 42.5% patients, ischemic heart disease in 74 (38%) patients, smokingin 59 (30.3%) patients, obesity in 53(27%) patients, atrial fibrillation in 43 (22%) patients anddyslipidemia in 23 (11.8%). Conclusion: Hypertension is the most common risk factor followedby diabetes mellitus associated with stroke due to cerebral infarction.


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