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[PMID]:28838549
[Au] Autor:Di Biase L; Gianni C; Bagliani G; Padeletti L
[Ad] Endereço:Texas Cardiac Arrhythmia Institute, St. David's Medical Center, 3000 N IH-35, Austin, TX, 78705, USA; Department of Biomedical Engineering, University of Texas, 107 W Dean Keeton Street, Austin, TX, 78712, USA; Arrhythmia Services, Montefiore Medical Center, Albert Einstein College of Medicine, 111
[Ti] Título:Arrhythmias Involving the Atrioventricular Junction.
[So] Source:Card Electrophysiol Clin;9(3):435-452, 2017 Sep.
[Is] ISSN:1877-9190
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:The atrioventricular junction has a central role in electrophysiology, responsible for reentrant and automatic forms of supraventricular tachycardia. During atrioventricular nodal reentry tachycardia, the circuit involves 2 electrophysiologically separate pathways located in the vicinity of the atrioventricular node. Atrioventricular reentry tachycardia is caused by the presence of an accessory pathway located almost anywhere along the atrioventricular groove; the macroreentrant circuit involves the atrioventricular node, the accessory pathway and necessarily portions of atria and ventricles. Junctional tachycardia is a rare form of nonparoxysmal supraventricular tachycardia, secondary to enhanced automaticity or triggered activity. By analyzing a 12-lead electrocardiogram during sinus rhythm and tachycardia, it is possible to accurately diagnose the specific type of supraventricular tachycardia.
[Mh] Termos MeSH primário: Feixe Acessório Atrioventricular/fisiopatologia
Arritmias Cardíacas/fisiopatologia
Nó Atrioventricular/fisiopatologia
Taquicardia/fisiopatologia
[Mh] Termos MeSH secundário: Eletrocardiografia
Seres Humanos
[Pt] Tipo de publicação:JOURNAL ARTICLE; REVIEW
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170920
[Lr] Data última revisão:
170920
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170826
[St] Status:MEDLINE


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[PMID]:28630174
[Au] Autor:Xue Y; Zhan X; Wu S; Wang H; Liu Y; Liao Z; Deng H; Duan X; Zeng S; Liang D; Elvan A; Fang X; Liao H; Ramdat Misier AR; Smit JJJ; Metzner A; Heeger CH; Liu F; Wang F; Zhang Z; Kuck KH; Yen Ho S; Ouyang F
[Ad] Endereço:From the Guangdong Cardiovascular Institute, Guangdong Provincial Key Laboratory of Clinical Pharmacology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, China (Y.X., X.Z., S.W., Y.L., Z.L., H.D., S.Z., D.L., X.F., H.L., F.L., F.W., Z.Z.); Department of Pathology, Fuwai Hospital,
[Ti] Título:Experimental, Pathologic, and Clinical Findings of Radiofrequency Catheter Ablation of Para-Hisian Region From the Right Ventricle in Dogs and Humans.
[So] Source:Circ Arrhythm Electrophysiol;10(6), 2017 Jun.
[Is] ISSN:1941-3084
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Ablation of para-Hisian accessory pathway (AP) poses high risks of atrioventricular block. We developed a pacing technique to differentiate the near-field (NF) from far-field His activations to avoid the complication. METHODS AND RESULTS: Three-dimensional mapping of the right ventricle was performed in 15 mongrel dogs and 23 patients with para-Hisian AP. Using different pacing outputs, the NF- and far-field His activation was identified on the ventricular aspect. Radiofrequency application was delivered at the NF His site in 8 (group 1) and the far-field His site in 7 dogs (group 2), followed by pathologic examination after 14 days. NF His activation was captured with 5 mA/1 ms in 10 and 10 mA/1 ms in 5 dogs. In group 1, radiofrequency delivery resulted in complete atrioventricular block in 3, right bundle branch block with HV (His-to-ventricular) interval prolongation in 1, and only right bundle branch block in 2 dogs, whereas no changes occurred in group 2. Pathologic examination in group-1 dogs showed complete or partial necrosis of the His bundle in 4 and complete necrosis of the right bundle branch in 5 dogs. In group 2, partial necrosis in the right bundle branch was found only in 1 dog. Using this pacing technique, the APs were 5.7±1.2 mm away from the His bundle located superiorly in 20 or inferiorly in 3 patients. All APs were successfully eliminated with 1 to 3 radiofrequency applications. No complications and recurrence occurred during a follow-up of 11.8±1.4 months. CONCLUSIONS: Differentiating the NF His from far-field His activations led to a high ablation success without atrioventricular block in para-Hisian AP patients.
[Mh] Termos MeSH primário: Feixe Acessório Atrioventricular/cirurgia
Fascículo Atrioventricular/cirurgia
Ablação por Cateter/métodos
Taquicardia Supraventricular/cirurgia
[Mh] Termos MeSH secundário: Feixe Acessório Atrioventricular/patologia
Feixe Acessório Atrioventricular/fisiopatologia
Potenciais de Ação
Adolescente
Adulto
Animais
Bloqueio Atrioventricular/etiologia
Bloqueio Atrioventricular/fisiopatologia
Bloqueio Atrioventricular/prevenção & controle
Biópsia
Fascículo Atrioventricular/patologia
Fascículo Atrioventricular/fisiopatologia
Estimulação Cardíaca Artificial
Ablação por Cateter/efeitos adversos
Criança
Modelos Animais de Doenças
Cães
Eletrocardiografia
Técnicas Eletrofisiológicas Cardíacas
Feminino
Frequência Cardíaca
Seres Humanos
Masculino
Necrose
Taquicardia Supraventricular/patologia
Taquicardia Supraventricular/fisiopatologia
Fatores de Tempo
Resultado do Tratamento
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170814
[Lr] Data última revisão:
170814
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170621
[St] Status:MEDLINE


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[PMID]:28588014
[Au] Autor:Liang M; Wang Z; Liang Y; Yang G; Jin Z; Sun M; Han Y
[Ad] Endereço:From the Department of Cardiology, The General Hospital of Shenyang Military Region, Shenyang, China.
[Ti] Título:Different Approaches for Catheter Ablation of Para-Hisian Accessory Pathways: Implications for Mapping and Ablation.
[So] Source:Circ Arrhythm Electrophysiol;10(6):e004882, 2017 Jun.
[Is] ISSN:1941-3084
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Catheter ablation of para-Hisian accessory pathways (APs) can be challenging because of adjacent conduction tissue. Some different approaches for ablation, including the inferior vena cava approach (IVC-A), the noncoronary cusp approach (NCC-A), or the superior vena cava approach (SVC-A), have been reported. However, when should para-Hisian APs be mapped and ablated by the IVC-A, NCC-A, or SVC-A is not well established. METHODS AND RESULTS: This study included 55 consecutive patients (mean age, 53±11 years, 36 males) with para-Hisian APs. On the basis of the approach resulting in successful ablation, patients were divided into IVC-A, NCC-A, and SVC-A groups. The clinical characteristics, surface ECG, intracardiac electrogram findings, and response to ablation were analyzed. Para-Hisian APs were eliminated by IVC-A in 48 of the 55 (87%) patients. The rates of para-Hisian APs requiring NCC-A (4/55 patients, 7%) and SVC-A (3/55 patients, 6%) were relatively low. During mapping at the para-Hisian region, the local ventricular and atrial potentials were well fused during retrograde AP conduction in 45 of the 48 patients in IVC-A group, 0 of the 4 patients in NCC-A group, and 1 of the 3 patients in SVC-A group, respectively. There was no significant difference in the preexcitation characteristics among the 3 groups. CONCLUSION: Most para-Hisian APs can be safely and effectively ablated by IVC-A, and ablation in the NCC is not an initial or a preferred approach. The degree of local ventriculoatrial fusion in the para-Hisian region during retrograde AP conduction can differentiate or predict the successful ablation site.
[Mh] Termos MeSH primário: Feixe Acessório Atrioventricular/cirurgia
Ablação por Cateter/métodos
Eletrocardiografia
Técnicas Eletrofisiológicas Cardíacas
Sistema de Condução Cardíaco/cirurgia
Taquicardia Supraventricular/diagnóstico
Taquicardia Supraventricular/cirurgia
[Mh] Termos MeSH secundário: Feixe Acessório Atrioventricular/diagnóstico por imagem
Feixe Acessório Atrioventricular/fisiopatologia
Potenciais de Ação
Adulto
Feminino
Sistema de Condução Cardíaco/diagnóstico por imagem
Sistema de Condução Cardíaco/fisiopatologia
Frequência Cardíaca
Seres Humanos
Masculino
Meia-Idade
Valor Preditivo dos Testes
Taquicardia Supraventricular/fisiopatologia
Tomografia Computadorizada por Raios X
Resultado do Tratamento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170814
[Lr] Data última revisão:
170814
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170608
[St] Status:MEDLINE
[do] DOI:10.1161/CIRCEP.116.004882


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[PMID]:28576781
[Au] Autor:Skov MW; Rasmussen PV; Ghouse J; Hansen SM; Graff C; Olesen MS; Pietersen A; Torp-Pedersen C; Haunsø S; Køber L; Svendsen JH; Holst AG; Nielsen JB
[Ad] Endereço:From the Laboratory for Molecular Cardiology, The Heart Centre, Rigshospitalet, Copenhagen, Denmark (M.W.S., P.V.R., J.G., M.S.O., S.H., J.H.S., A.G.H., J.B.N.); Department of Clinical Medicine, Faculty of Health and Medical Sciences, University of Copenhagen, Denmark (S.H., L.K., J.H.S.); Departmen
[Ti] Título:Electrocardiographic Preexcitation and Risk of Cardiovascular Morbidity and Mortality: Results From the Copenhagen ECG Study.
[So] Source:Circ Arrhythm Electrophysiol;10(6), 2017 Jun.
[Is] ISSN:1941-3084
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: The majority of available data on the clinical course of patients with ventricular preexcitation in the ECG originates from tertiary centers. We aimed to investigate long-term outcomes in individuals from a primary care population with electrocardiographic preexcitation. METHODS AND RESULTS: Digital ECGs from 328 638 primary care patients were collected during 2001 to 2011. We identified 310 individuals with preexcitation (age range, 8-85 years). Data on medication, comorbidity, and outcomes were collected from Danish nationwide registries. The median follow-up time was 7.4 years (quartiles, 4.6-10.3 years). Compared with the remainder of the population, patients with preexcitation had higher adjusted hazards of atrial fibrillation (hazard ratio [HR], 3.12; 95% confidence interval [CI], 2.07-4.70) and heart failure (HR, 2.11; 95% CI, 1.27-3.50). Subgroup analysis on accessory pathway location revealed a higher adjusted hazard of heart failure for a right anteroseptal accessory pathway (HR, 5.88; 95% CI, 2.63-13.1). There was no evidence of a higher hazard of death among individuals with preexcitation when looking across all age groups (HR, 1.07; 95% CI, 0.68-1.68). However, a statistically significant ( =0.01) interaction analysis (<65 versus ≥65 years) indicated a higher hazard of death for patients with preexcitation ≥65 years (HR, 1.85; 95% CI, 1.07-3.18). CONCLUSIONS: In this large ECG study, individuals with preexcitation had higher hazards of atrial fibrillation and heart failure. The higher hazard of heart failure seemed to be driven by a right anteroseptal accessory pathway. Among elderly people, we found a statistically significant association between preexcitation and a higher hazard of death.
[Mh] Termos MeSH primário: Feixe Acessório Atrioventricular/fisiopatologia
Fibrilação Atrial/mortalidade
Eletrocardiografia
Sistema de Condução Cardíaco/fisiopatologia
Insuficiência Cardíaca/mortalidade
Síndromes de Pré-Excitação/diagnóstico
Síndromes de Pré-Excitação/mortalidade
[Mh] Termos MeSH secundário: Potenciais de Ação
Adolescente
Adulto
Fatores Etários
Idoso
Idoso de 80 Anos ou mais
Fibrilação Atrial/diagnóstico
Fibrilação Atrial/fisiopatologia
Causas de Morte
Criança
Dinamarca/epidemiologia
Feminino
Insuficiência Cardíaca/diagnóstico
Insuficiência Cardíaca/fisiopatologia
Frequência Cardíaca
Seres Humanos
Masculino
Meia-Idade
Síndromes de Pré-Excitação/fisiopatologia
Valor Preditivo dos Testes
Prevalência
Atenção Primária à Saúde
Prognóstico
Modelos de Riscos Proporcionais
Sistema de Registros
Medição de Risco
Fatores de Risco
Fatores Sexuais
Fatores de Tempo
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170814
[Lr] Data última revisão:
170814
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170604
[St] Status:MEDLINE


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[PMID]:28441823
[Au] Autor:Wang F; Lu Y; Yuan C; Bai JR; Yang HS; Wu L
[Ad] Endereço:Catheterization Laboratory, Cardiovascular Center, Children's Hospital of Fudan University, Shanghai 201102, China.
[Ti] Título:[Evaluation of a low dose imaging protocol on radiation exposure reduction in pediatric supraventricular tachycardia ablation procedure].
[So] Source:Zhonghua Er Ke Za Zhi;55(4):272-276, 2017 Apr 02.
[Is] ISSN:0578-1310
[Cp] País de publicação:China
[La] Idioma:chi
[Ab] Resumo:To evaluate the feasibility and efficiency of a low dose imaging protocol on reducing X-ray dose level in pediatric supraventricular tachycardia (SVT) ablation procedure. Data were collected from 103 patients who underwent catheter ablation for SVT in Children's Hospital of Fudan University from January 2014 to October 2016 in terms of body weight, body surface area (BSA), SVT types, accessory pathway location, fluoroscopy time and the radiation dose (including AIR KERMA and dose area product) in a case observational study.The fluoroscopy protocols were operated at 36 nGy/frame and 10 frames/s (Standard group, =47) from January 2014 to September 2015, 36 nGy/frame and 10 frames/s with removal of the grid (Grid-out group, =24) from October 2015 to April 2016, as well as 23 nGy/frame and 4.0-7.5 frames/s without the grid (Grid-out plus low dose group, =32) from May 2016 to October 2016, respectively.Comparisons among groups were performed by independent-sample -test or one-way analysis of variance for normally distributed continuous variables, and χ(2) test for categorical variables. The average body weight, BSA, fluoroscopy time and AIR KERMA of the three groups was (34±14) kg, (1.14±0.33) m(2,) (11±8) minutes and (12.97±12.43) mGy, respectively.No significant differences in body weight ( =2.551), BSA ( =2.359), SVT types (χ(2)=6.15), and accessory pathway location (χ(2)=3.438) were observed among these three groups ( >0.05). Images acquired by low dose protocol could provide enough information for procedures, and no complication occurred.The acute success rates were 100% in all of these three groups, and there was no significant difference in mean fluoroscopy time ( =0.004, >0.05) among them.However, the radiation dose (AIR KERMA) in the Grid-out plus low dose group was much lower than that in the Standard group ((7.54±7.31) mGy . (16.25±12.08) mGy, =6.112, <0.01)). The new strategy of combination of low dose fluoroscopy protocol with removal of grid markedly reduced radiation exposure to children undergoing supraventricular tachycardia ablation while maintaining procedural efficacy and safety.
[Mh] Termos MeSH primário: Ablação por Cateter
Exposição à Radiação
Taquicardia Supraventricular/terapia
[Mh] Termos MeSH secundário: Feixe Acessório Atrioventricular
Fascículo Atrioventricular
Criança
Feminino
Fluoroscopia
Seres Humanos
Masculino
Dose de Radiação
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1708
[Cu] Atualização por classe:170807
[Lr] Data última revisão:
170807
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170427
[St] Status:MEDLINE
[do] DOI:10.3760/cma.j.issn.0578-1310.2017.04.008


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[PMID]:28101960
[Au] Autor:Liu R; Chen QI; Chen Y; Zhang Y; Xu Z; Wang G
[Ad] Endereço:Cardiovascular Institute of the First Affiliated Hospital of Liaoning Medical University in Jinzhou, Liaoning Province, China.
[Ti] Título:Effects of Antegrade Accessory Pathway Conduction on QRS Terminal Vector in Patients with Preexcitation Syndrome.
[So] Source:Pacing Clin Electrophysiol;40(3):264-270, 2017 Mar.
[Is] ISSN:1540-8159
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Ventricle preexcitation through accessory pathway changes QRS initial vector, and manifests as delta wave on electrocardiogram (ECG). However, QRS terminal vector can also be affected. METHODS: A total of 158 patients who had single accessory pathway (AP) with antegrade conduction capacity were included and divided into two groups according to the ECG with or without delta wave. Note that 150 patients had delta wave (overt AP group) on ECG; classical preexcitation syndrome was diagnosed before radiofrequency ablation. Eight patients had no delta wave on ECG (unapparent AP group); preexcitation was induced by transesophageal atrial pacing. ECGs and intracardiac electrogram (IEGM) before and after ablation and during atrioventricular reentrant tachycardia were analyzed. RESULTS: (1) In the overt AP group: QRS terminal vector amplitude and polarity changes were observed in all the 150 patients, and were related to AP location and delta wave polarity. (2) In the unapparent AP group: QRS terminal vector changes were found in two out of eight patients, and the initial activation of ventricle myocardium via AP on IEGM was almost simultaneous with the onset of QRS complex on ECG. CONCLUSIONS: It is not only the QRS initial vector, but also the QRS terminal vector that can be changed by the antegrade accessory pathway conduction in patients with preexcitation syndrome. The change of QRS terminal vector is valuable for the diagnosis of atypical preexcitation.
[Mh] Termos MeSH primário: Feixe Acessório Atrioventricular/diagnóstico
Feixe Acessório Atrioventricular/fisiopatologia
Eletrocardiografia/métodos
Síndromes de Pré-Excitação/diagnóstico
Síndromes de Pré-Excitação/fisiopatologia
[Mh] Termos MeSH secundário: Adolescente
Adulto
Idoso
Criança
Diagnóstico Diferencial
Feminino
Seres Humanos
Masculino
Meia-Idade
Reprodutibilidade dos Testes
Sensibilidade e Especificidade
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171109
[Lr] Data última revisão:
171109
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170120
[St] Status:MEDLINE
[do] DOI:10.1111/pace.13025


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[PMID]:28098354
[Au] Autor:Kipp RT; Abu Sham'a R; Hiroyuki I; Han FT; Refaat M; Hsu JC; Field ME; Kopp DE; Marcus GM; Scheinman MM; Hoffmayer KS
[Ad] Endereço:Division of Cardiology, Section of Electrophysiology, University of Wisconsin School of Medicine and Public Health, Madison, Wisconsin.
[Ti] Título:Concealed Accessory Pathways with a Single Ventricular and Two Discrete Atrial Insertion Sites.
[So] Source:Pacing Clin Electrophysiol;40(3):255-263, 2017 Mar.
[Is] ISSN:1540-8159
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Atrioventricular reciprocating tachycardia (AVRT) utilizing a concealed accessory pathway is common. It is well appreciated that some patients may have multiple accessory pathways with separate atrial and ventricular insertion sites. METHODS: We present three cases of AVRT utilizing concealed pathways with evidence that each utilizing a single ventricular insertion and two discrete atrial insertion sites. RESULTS: In case one, two discrete atrial insertion sites were mapped in two separate procedures, and only during the second ablation was the Kent potential identified. Ablation of the Kent potential at this site remote from the two atrial insertion sites resulted in the termination of the retrograde conduction in both pathways. Case two presented with supraventricular tachycardia (SVT) with alternating eccentric atrial activation patterns without alteration in the tachycardia cycle length. The two distinct atrial insertion sites during orthodromic AVRT and ventricular pacing were targeted and each of the two atrial insertion sites were successfully mapped and ablated. In case three, retrograde decremental conduction utilizing both atrial insertion sites was identified prior to ablation. After mapping and ablation of the first discrete atrial insertion site, tachycardia persisted utilizing the second atrial insertion site. Only after ablation of the second atrial insertion site was SVT noninducible, and VA conduction was no longer present. CONCLUSIONS: Concealed retrograde accessory pathways with discrete atrial insertion sites may have a common ventricular insertion site. Identification and ablation of the ventricular insertion site or the separate discrete atrial insertion sites result in successful treatment.
[Mh] Termos MeSH primário: Feixe Acessório Atrioventricular/diagnóstico
Feixe Acessório Atrioventricular/fisiopatologia
Átrios do Coração/fisiopatologia
Ventrículos do Coração/fisiopatologia
Taquicardia por Reentrada no Nó Atrioventricular/diagnóstico
Taquicardia por Reentrada no Nó Atrioventricular/fisiopatologia
[Mh] Termos MeSH secundário: Feixe Acessório Atrioventricular/complicações
Adulto
Mapeamento Potencial de Superfície Corporal/métodos
Diagnóstico Diferencial
Feminino
Átrios do Coração/inervação
Ventrículos do Coração/inervação
Seres Humanos
Masculino
Meia-Idade
Taquicardia por Reentrada no Nó Atrioventricular/complicações
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171109
[Lr] Data última revisão:
171109
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170119
[St] Status:MEDLINE
[do] DOI:10.1111/pace.13024


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[PMID]:28084962
[Au] Autor:Benson DW; Cohen MI
[Ad] Endereço:1Congenital & Pediatric Cardiac Research,Department of Pediatrics,Children's Hospital of Wisconsin,Milwaukee,Wisconsin,United States of America.
[Ti] Título:Wolff-Parkinson-White syndrome: lessons learnt and lessons remaining.
[So] Source:Cardiol Young;27(S1):S62-S67, 2017 Jan.
[Is] ISSN:1467-1107
[Cp] País de publicação:England
[La] Idioma:eng
[Ab] Resumo:The Wolff-Parkinson-White pattern refers to the electrocardiographic appearance in sinus rhythm, wherein an accessory atrioventricular pathway abbreviates the P-R interval and causes a slurring of the QRS upslope - the "delta wave". It may be asymptomatic or it may be associated with orthodromic reciprocating tachycardia; however, rarely, even in children, it is associated with sudden death due to ventricular fibrillation resulting from a rapid response by the accessory pathway to atrial fibrillation, which itself seems to result from orthodromic reciprocating tachycardia. Historically, patients at risk for sudden death were characterised by the presence of symptoms and a shortest pre- excited R-R interval during induced atrial fibrillation <250 ms. Owing to the relatively high prevalence of asymptomatic Wolff-Parkinson-White pattern and availability of catheter ablation, there has been a need to identify risk among asymptomatic patients. Recent guidelines recommend invasive evaluation for such patients where pre-excitation clearly does not disappear during exercise testing. This strategy has a high negative predictive value only. The accuracy of this approach is under continued investigation, especially in light of other considerations: Patients having intermittent pre-excitation, once thought to be at minimal risk may not be, and the role of isoproterenol in risk assessment.
[Mh] Termos MeSH primário: Fibrilação Atrial/etiologia
Ablação por Cateter/efeitos adversos
Morte Súbita Cardíaca/etiologia
Síndrome de Wolff-Parkinson-White/epidemiologia
Síndrome de Wolff-Parkinson-White/história
[Mh] Termos MeSH secundário: Feixe Acessório Atrioventricular
Eletrocardiografia
Teste de Esforço
História do Século XX
Seres Humanos
Isoproterenol/farmacologia
Guias de Prática Clínica como Assunto
Medição de Risco
Taquicardia Reciprocante/fisiopatologia
[Pt] Tipo de publicação:HISTORICAL ARTICLE; JOURNAL ARTICLE; REVIEW
[Nm] Nome de substância:
L628TT009W (Isoproterenol)
[Em] Mês de entrada:1702
[Cu] Atualização por classe:170214
[Lr] Data última revisão:
170214
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:170114
[St] Status:MEDLINE
[do] DOI:10.1017/S1047951116002250


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[PMID]:27943453
[Au] Autor:Divakara Menon SM; Ayati M; Healey JS
[Ad] Endereço:Arrhythmia Services, McMaster University, Hamilton, Ontario, Canada.
[Ti] Título:Harder Roads to Trek? Paradoxical Slowing of an Atrioventricular Reentrant Tachycardia With Contralateral Bundle Branch Block.
[So] Source:J Cardiovasc Electrophysiol;28(4):455-457, 2017 Apr.
[Is] ISSN:1540-8167
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Slowing of the tachycardia with increase in cycle length and increase in VA time with ipsilateral bundle branch block is a characteristic feature of accessory pathway mediated AVRT. Contralateral bundle branch block has no effect on the tachycardia as it is not a part of the tachycardia circuit. We present an interesting phenomenon in which contralateral bundle branch block resulted in tachycardia slowing in a case of WPW syndrome.
[Mh] Termos MeSH primário: Nó Atrioventricular/fisiopatologia
Fascículo Atrioventricular/fisiopatologia
Bloqueio de Ramo/fisiopatologia
Taquicardia por Reentrada no Nó Atrioventricular/fisiopatologia
Síndrome de Wolff-Parkinson-White/fisiopatologia
[Mh] Termos MeSH secundário: Feixe Acessório Atrioventricular
Potenciais de Ação
Adulto
Bloqueio de Ramo/diagnóstico
Eletrocardiografia
Técnicas Eletrofisiológicas Cardíacas
Frequência Cardíaca
Seres Humanos
Masculino
Taquicardia por Reentrada no Nó Atrioventricular/diagnóstico
Fatores de Tempo
Síndrome de Wolff-Parkinson-White/diagnóstico
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1711
[Cu] Atualização por classe:171107
[Lr] Data última revisão:
171107
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161213
[St] Status:MEDLINE
[do] DOI:10.1111/jce.13146


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[PMID]:27910083
[Au] Autor:Orczykowski M; Derejko P; Bodalski R; Urbanek P; Zakrzewska-Koperska J; Sierpinski R; Kalin K; Hasiec A; Warminski G; Miszczak-Knecht M; Bieganowska K; Baranowski R; Bilinska M; Biernacka E; Hoffman P; Szumowski L
[Ad] Endereço:National Institute of Cardiology, Arrhythmia Department, Warsaw, Poland. morczykowski@gazeta.pl.
[Ti] Título:Radiofrequency catheter ablation of accessory pathways in patients with Ebstein's anomaly: At 8 years of follow-up.
[So] Source:Cardiol J;24(1):1-8, 2017.
[Is] ISSN:1897-5593
[Cp] País de publicação:Poland
[La] Idioma:eng
[Ab] Resumo:BACKGROUND: Data regarding long-term follow-up of radiofrequency catheter ablation (RFCA) of accessory pathways (APs) in patients with Ebstein's anomaly (EA) are limited. The procedures are challenging due to multiple or wide APs. METHODS: Analysis was performed on clinical and periprocedural data of patients with EA referred to the centre in order to perform catheter ablation of AP. The group consisted of 22 patients (female 40.9%, mean age 33.6 ± 19.1 years). The follow-up utilized electrocardiogram and Holter monitoring. RESULTS: Twenty-two patients had 33 accessory pathways (8 patients had multiple APs, 11 patients broad AP). Twenty-nine different arrhythmias were ablated: 20 orthodromic atrioventricular reciprocating tachycardia (O-AVRT), 5 antidromic atrioventricular reciprocating tachycardia (A-AVRT), 3 slow/ fast atrioventricular nodal reentry tachycardia (s/f AVNRT) and 1 cavotricuspid-isthmus-dependent atrial flutter (CTI-AFL). In 3 (13.6%) patients multiple ablation targets for RFCA ablation were observed. The acute procedural success rate after the first RFCA performed was: 100% for AVNRT, 77.3% for APs and 50.0% for CTI-AFL ablation. Follow-up (mean 95.7 ± 49.8 months) was completed in 86.4% of patients. One patient had paroxysmal atrial fibrillation not targeted during ablation. One patient died due to heart failure 12 years after RFCA. Three patients who underwent RFCA of accessory pathways in the mid-1990s were lost in follow-up. CONCLUSIONS: Radiofrequency ablation in patients with EA is challenging but safe and have a high short-term as well as long-term success rate.
[Mh] Termos MeSH primário: Feixe Acessório Atrioventricular/cirurgia
Ablação por Cateter/métodos
Anomalia de Ebstein/complicações
Técnicas Eletrofisiológicas Cardíacas
[Mh] Termos MeSH secundário: Feixe Acessório Atrioventricular/etiologia
Feixe Acessório Atrioventricular/fisiopatologia
Adulto
Feminino
Seguimentos
Seres Humanos
Masculino
Fatores de Tempo
Resultado do Tratamento
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1703
[Cu] Atualização por classe:170314
[Lr] Data última revisão:
170314
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:161203
[St] Status:MEDLINE
[do] DOI:10.5603/CJ.a2016.0111



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