scholarly journals Catheter ablation of ventricular arrhythmias and in-hospital mortality: insights from the German-wide Helios hospital network of 5052 cases

Author(s):  
Sebastian König ◽  
Laura Ueberham ◽  
René Müller-Röthing ◽  
Michael Wiedemann ◽  
Michael Ulbrich ◽  
...  

Abstract Aims Catheter ablation (CA) of ventricular arrhythmias is one of the most challenging electrophysiological interventions with an increasing use over the last years. Several benefits must be weighed against the risk of potentially life-threatening complications which necessitates a steady reevaluation of safety endpoints. Therefore, the aims of this study were (i) to investigate overall in-hospital mortality in patients undergoing such procedures and (ii) to identify variables associated with in-hospital mortality in a German-wide hospital network. Methods and results Between January 2010 and September 2018, administrative data provided by 85 Helios hospitals were screened for patients with main or secondary discharge diagnosis of ventricular tachycardia (VT) or premature ventricular contractions (PVCs) in combination with an arrhythmia-related CA using ICD- and OPS codes. In 5052 cases (mean age 60.9 ± 14.3 years, 30.1% female) of 30 different hospitals, in-hospital mortality was 1.27% with a higher mortality in patients ablated for VT (1.99%, n = 2, 955) compared to PVC (0.24%, n = 2, 097, P < 0.01). Mortality rates were 2.06% in patients with ischaemic heart disease (IHD, n = 2, 137), 1.47% in patients with non-ischaemic structural heart disease (NIHD, n = 1, 224), and 0.12% in patients without structural heart disease (NSHD, n = 1, 691). Considering different types of hospital admission, mortality rates were 0.35% after elective (n = 2, 825), 1.60% after emergency admission/hospital transfer <24 h (n = 1, 314) and 3.72% following delayed hospital transfer >24 h after initial admission (n = 861, P < 0.01 vs. elective admission and emergency admission/hospital transfer <24 h). In multivariable analysis, a delayed hospital transfer >24 h [odds ratio (OR) 2.28, 95% confidence interval (CI) 1.59–3.28, P < 0.01], the occurrence of procedure-related major adverse events (OR 6.81, 95% CI 2.90–16.0, P < 0.01), Charlson Comorbidity Index (CCI, OR 2.39, 95% CI 1.56–3.66, P < 0.01) and its components congestive heart failure (OR 8.04, 95% CI 1.71–37.8, P < 0.01), and diabetes mellitus (OR 1.59, 95% CI 1.13–2.22, P < 0.01) were significantly associated with in-hospital death. Conclusions We reported in-hospital mortality rates after CA of ventricular arrhythmias in the largest multicentre, administrative dataset in Germany which can be implemented in quality management programs. Aside from comorbidities, a delayed hospital transfer to a CA performing centre is associated with an increased in-hospital mortality. This deserves further studies to determine the optimal management strategy.

ESC CardioMed ◽  
2018 ◽  
pp. 2279-2288
Author(s):  
Tilman Maurer ◽  
William G. Stevenson ◽  
Karl-Heinz Kuck

Monomorphic ventricular tachycardia (VT) may occur in the presence or absence of structural heart disease. The standard therapy for patients with structural heart disease at high risk of sudden cardiac death due to VT is the implantable cardioverter defibrillator (ICD). While ICDs effectively terminate VT and prevent sudden cardiac death, they do not prevent recurrent episodes of VT, since the underlying arrhythmogenic substrate remains unchanged. However, shocks from an ICD increase mortality and impair quality of life. These limitations as well as continuous advancements in technology have made catheter ablation an important treatment strategy for patients with structural heart disease presenting with VT. Idiopathic ventricular arrhythmias include premature ventricular contractions and VT occurring in the absence of overt structural heart disease. In this setting, catheter ablation has evolved as the primary therapeutic option for symptomatic ventricular premature beats and sustained VTs and is curative in most cases. This chapter presents an overview of the principles of invasive diagnosis and treatment of monomorphic VTs in patients with and without structural heart disease and delineates the clinical outcome of catheter ablation. Finally, the chapter provides an outlook to the future, discussing potential directions and upcoming developments in the field of catheter ablation of monomorphic VT.


2018 ◽  
Vol 122 (8) ◽  
pp. 1345-1351 ◽  
Author(s):  
Gbolahan O. Ogunbayo ◽  
Richard Charnigo ◽  
Yousef Darrat ◽  
Jignesh Shah ◽  
Ripa Patel ◽  
...  

Author(s):  
Shibu Mathew ◽  
Thomas Fink ◽  
Sebastian Feickert ◽  
Osamu Inaba ◽  
Naotaka Hashiguchi ◽  
...  

Abstract Aims Catheter ablation of ventricular arrhythmias (VA) has proven to be an effective therapeutic option for secondary arrhythmia prophylaxis. We sought to assess the procedural efficacy, safety and in-hospital mortality of a large patient cohort with and without structural heart disease undergoing VA ablation. Methods A total of 1417 patients (804 patients with structural heart disease) undergoing 1792 endo- and epicardial procedures were analyzed. Multivariable risk factor analysis for occurrence of major complications and intrahospital mortality was obtained and a score to allow preprocedural risk assessment for patients undergoing VA ablation procedures was established. Results Major complication occurred in 4.4% of all procedures and significantly more often in patients with structural heart disease than in structurally normal hearts (6.0 vs. 1.8%). The frequency of these periprocedural complications was significantly different between procedures with sole right ventricular and a combination of RV and LV access (0.5 vs. 3.1%). The most common complication was cardiac tamponade in 46 cases (3.0%). Intrahospital death was observed in 32 patients (1.8%). Logistic regression model revealed presence of ischemic heart disease, epicardial ablation, presence of oral anticoagulation or dual antiplatelet therapy as independent risk factors for the occurrence of complications or intrahospital death, while a history of previous heart surgery was an independent predictor with a decreased risk. Based on this analysis a risk score incorporating 5 standard variables was established to predict the occurrence of complications and intrahospital mortality. Conclusions Safety of VA catheter ablation mainly relies on patient baseline characteristics and the type of access into the ventricles or epicardial space.


2013 ◽  
Vol 2 (1) ◽  
pp. 45 ◽  
Author(s):  
Eyal Nof ◽  
William G Stevenson ◽  
Roy M John ◽  
◽  
◽  
...  

Catheter ablation has emerged as an important and effective treatment option for many recurrent ventricular arrhythmias. The approach to ablation and the risks and outcomes are largely determined by the nature of the severity and type of underlying heart disease. In patients with structural heart disease, catheter ablation can effectively reduce ventricular tachycardia (VT) episodes and implantable cardioverter defibrillator (ICD) shocks. For VT and symptomatic premature ventricular beats that occur in the absence of structural heart disease, catheter ablation is often effective as the sole therapy. Advances in catheter technology, imaging and mapping techniques have improved success rates for ablation. This review discusses current approaches to mapping and ablation for ventricular arrhythmias.


2018 ◽  
Vol 13 (11-12) ◽  
pp. 343-343
Author(s):  
Vedran Velagić ◽  
Mia Dubravčić ◽  
Borka Pezo-Nikolić ◽  
Mislav Puljević ◽  
Richard Matasić ◽  
...  

2020 ◽  
Author(s):  
Roy M. John ◽  
William G Stevenson

Ventricular arrhythmias are common in all forms of heart disease and are an important cause of cardiac arrest and sudden death. Many ventricular arrhythmias are benign but may serve as a marker for underlying disease or its severity. Others are life threatening. The significance of an arrhythmia is determined by the specific characteristics of the arrhythmia and the associated heart disease, and these features guide evaluation and therapy. This review discusses various mechanisms and types of ventricular arrhythmias and management based on clinical presentation (including patients with symptomatic arrhythmia and increased risk of sudden death without arrhythmia symptoms). Genetic arrhythmia syndromes, such as abnormalities of repolarization and the QT interval, catecholaminergic polymorphic ventricular tachycardia (VT), and inherited cardiomyopathies, are discussed in depth. Under the rubric of management of ventricular arrhythmias, drug therapy for ventricular arrhythmias, implantable cardioverter-defibrillators (ICDs), and catheter ablation for VT are also covered. Tables chart out guideline recommendations for ICD therapy, drugs for the management of ventricular arrhythmias, and indications and contraindications for catheter ablation of ventricular arrhythmias. Electrocardiograms are provided, as well as management algorithms for ventricular arrhythmias based on patient presentation, and an algorithm for identifying patients with systolic heart failure and left ventricular ejection less than or equal to 35% who are candidates for consideration of an ICD for primary prevention of sudden cardiac death. This review contains 5 figures, 8 tables, and 61 references. Keywords: Ventricular arrhythmias, implanted cardioverter-defibrillator (ICD), Ventricular tachycardia (VT), Premature Ventricular Contractions (PVC), Myocardial Infarction (MI), Brugada syndrome, Arrhythmogenic right ventricular cardiomyopathy (ARVC), electrocardiographic (ECG)


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