Classification of tachyarrhythmias, mechanisms of arrhythmogenesis, and acute management

Author(s):  
Demosthenes G. Katritsis ◽  
Bernard J. Gersh ◽  
A. John Camm

Tachyarrhythmias are considered as atrial tachycardias, AVNRT and other junctional arrhythmias, AVRT, atrial fibrillation, and ventricular arrhythmias. The classification, electrophysiological mechanisms, and acute therapy of arrhythmias are presented.

Author(s):  
Demosthenes Katritsis ◽  
A John Camm

This chapter discusses the acute management of patients presenting with tachyarrhythmias suggestive of regular supraventricular tachycardias (SVT) and/or atrial fibrillation (AF). A classification of narrow- and wide-QRS tachycardias is presented, and the differential diagnosis of narrow- and wide-QRS tachycardias is discussed. Principles of acute therapy are presented either in the context of acute therapy before establishing a definitive diagnosis or for particular arrhythmia entities with an established diagnosis of a regular SVT or AF.


Author(s):  
Demosthenes Katritsis ◽  
A John Camm

This chapter discusses the acute management of patients presenting with tachyarrhythmias suggestive of regular supraventricular tachycardias (SVT) and/or atrial fibrillation (AF). A classification of narrow- and wide-QRS tachycardias is presented, and the differential diagnosis of narrow- and wide-QRS tachycardias is discussed. Principles of acute therapy are presented either in the context of acute therapy before establishing a definitive diagnosis or for particular arrhythmia entities with an established diagnosis of a regular SVT or AF.


Author(s):  
Demosthenes Katritsis ◽  
A John Camm

This chapter discusses the acute management of patients presenting with tachyarrhythmias suggestive of regular supraventricular tachycardias (SVT) and/or atrial fibrillation (AF). A classification of narrow- and wide-QRS tachycardias is presented, and the differential diagnosis of narrow- and wide-QRS tachycardias is discussed. Principles of acute therapy are presented either in the context of acute therapy before establishing a definitive diagnosis or for particular arrhythmia entities with an established diagnosis of a regular SVT or AF.


ESC CardioMed ◽  
2018 ◽  
pp. 187-195
Author(s):  
Federico Guerra ◽  
Alessandro Capucci

Antiarrhythmic drugs are the cornerstone of supraventricular and ventricular arrhythmias therapy. Despite the increasing interest in invasive and ablative approaches to treating many arrhythmias, such as atrial fibrillation and ventricular tachycardia, antiarrhythmic drugs are still widely used for both acute management and chronic prophylaxis. Unfortunately, many antiarrhythmic drugs currently available have a narrow therapeutic window and many issues regarding potential serious adverse effects, proarrhythmic properties, and multiorgan toxicity. The current Vaughan Williams classification of antiarrhythmic drugs is shown in a table. The aim this chapter is to provide basic information regarding the most used compounds in clinical practice.


2017 ◽  
Vol 41 (S1) ◽  
pp. S575-S576
Author(s):  
Z. Mansuri ◽  
S. Patel ◽  
P. Patel ◽  
O. Jayeola ◽  
A. Das ◽  
...  

ObjectiveTo determine trends and impact on outcomes of atrial fibrillation (AF) in patients with pre-existing psychosis.BackgroundWhile post-AF psychosis has been extensively studied, contemporary studies including temporal trends on the impact of pre-AF psychosis on AF and post-AF outcomes are largely lacking.MethodsWe used Nationwide Inpatient Sample (NIS) from the healthcare cost and utilization project (HCUP) from year's 2002–2012. We identified AF and psychosis as primary and secondary diagnosis respectively using validated international classification of diseases, 9th revision, and Clinical Modification (ICD-9-CM) codes, and used Cochrane–Armitage trend test and multivariate regression to generate adjusted odds ratios (aOR).ResultsWe analyzed total of 3.887.827AF hospital admissions from 2002–2012 of which 1.76% had psychosis. Proportion of hospitalizations with psychosis increased from 5.23% to 14.28% (P trend < 0.001). Utilization of atrial-cardioversion was lower in patients with psychosis (0.76%v vs. 5.79%, P < 0.001). In-hospital mortality was higher in patients with Psychosis (aOR 1.206; 95%CI 1.003–1.449; P < 0.001) and discharge to specialty care was significantly higher (aOR 4.173; 95%CI 3.934–4.427; P < 0.001). The median length of hospitalization (3.13 vs. 2.14 days; P < 0.001) and median cost of hospitalization (16.457 vs. 13.172; P < 0.001) was also higher in hospitalizations with psychosis.ConclusionsOur study displayed an increasing proportion of patients with Psychosis admitted due to AF with higher mortality and extremely higher morbidity post-AF, and significantly less utilization of atrial-cardioversion. There is a need to explore reasons behind this disparity to improve post-AF outcomes in this vulnerable population.Disclosure of interestThe authors have not supplied their declaration of competing interest.


Author(s):  
Hassan Serhal ◽  
Nassib Abdallah ◽  
Jean-Marie Marion ◽  
Pierre Chauvet ◽  
Mohamad Oueidat ◽  
...  
Keyword(s):  

Circulation ◽  
2020 ◽  
Vol 142 (Suppl_3) ◽  
Author(s):  
Mae'n Al-Dabbas ◽  
Jay Shah ◽  
devina adalja ◽  
Archana Gundabolu ◽  
Ashish Kumar ◽  
...  

Introduction: Hypertension has been reported as one of the most common risk factor causing atrial fibrillation (AF). Also, hypertension is associated with more persistent AF. However the epidemiology for incidence of hypertensive emergency in AF hospitalization is not well documented. Hypothesis: We hypothesize that frequency of hypertensive emergency has been increasingly associated with Atrial fibrillation. Methods: National inpatient sample from 2005 -2015 was used for the present analysis. Patients over 18 years, with AF as the primary diagnosis were identified using International Classification of Diseases, Ninth Revision-Clinical Modification (ICD-9-CM) code, 427.31. Patients with hypertensive emergency were identified using ICD-9-CM code. 401.0, 402.0, 403.0, 404.0, 405.0. Results: A total of 4,988,269 AF patients over 18 years of age were included in the present analysis. Of these hospitalization 49,423 had hypertensive emergency during hospitalizations and the rest 4,938,846 had no hypertensive emergency. There was a monotonic increase in the trend of rates of hypertensive emergency per 1000 AF hospitalizations, from 2005 - 2015. (P value <0.001) [Figure 1]. Conclusion: There has been a significant increase in the rates of hypertensive emergency among AF hospitalization, over the past decade. Further research is needed to investigate the reason for this increased trend.


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