Abstract:
PURPOSE:To verify the efficacy and safety of the creation of a barrier with radiofrequency (RF) in the tricuspid annulus and the vena cava ostium (TA-IVC). METHODS:Nine consecutive patients, 7 males, with age ranging from 36 to 76 years, with paroxysmal (7 patients) or permanent (2) type I atrial flutter (negative P wave in lead II, III and F) were submitted to RF ablation of TA-IVC istmo. One deflectable catheter with 4mm size tip was introduced into the right ventricle apex and pulled back to the inferior vena cava. When the atrial electrogram was detected the RF application was started. The RF was applied (20 watts during 60s) up to the proximity of inferior vena cava ostium. The end point was to stop atrial flutter. Then a vigorous atrial stimulation protocol, including isoproterenol infusion was used. In the next day, patients were submitted to transesophageal stimulation with the same protocol. RESULTS:Atrial flutter was interrupted in all patients (100%) with 4 to 28 (mean 16.7 +/- 7.7) applications. Eight patients (88.8%) with one session and 1 (11.1%) with two sessions. The mean time spent to stop the atrial flutter with one application was 30.5 +/- 18.5s. There were no complications. After a mean follow up of 3 +/- 1.6 month all patients (100%) are asymptomatic. Two of them are taking propranolol to control symptomatic atrial and ventricular ectopic beats. CONCLUSION:RF ablation of the TA-IVC istmo is efficient and safe in a short term follow up to interrupt and prevent re-induction and recurrence of type I atrial flutter.
journal_name
Arq Bras Cardioljournal_title
Arquivos brasileiros de cardiologiaauthors
Sosa EA,Scanavacca MI,Lewandowski A,Kuniyoshi R,Magalhães L,Sarabanda A,Piccioni JL,Bellotti G,Pileggi Fsubject
Has Abstractpub_date
1994-09-01 00:00:00pages
191-5issue
3eissn
0066-782Xissn
1678-4170journal_volume
63pub_type
临床试验,杂志文章abstract:PURPOSE:To study the autonomic behavior of the escape rhythm in congenital complete heart block (CCHB), using heart rate variability (HRV). METHODS:A group of 10 asymptomatic patients with CCHB and narrow QRS was studied, 7 females; mean age = 14 +/- 9 years. The following time domain indexes were analyzed from a 24 h...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1994-06-01 00:00:00
abstract:BACKGROUND:The exercise treadmill test can be used in ventricular dysfunction patients for functional capacity or predicting prognosis. The cardiac image with 123I MIBG shows cardiac sympathetic activation. OBJECTIVE:To evaluate the relationship between exercise treadmill test variables and cardiac image changes in 12...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2011005000044
更新日期:2011-05-01 00:00:00
abstract::Despite being relatively recent, a growing and significant accumulation of experimental and clinical evidence has been observed that points to a gradual state of immune-inflammatory activation in patients with heart failure (HF). High levels of several cytokines are found in the circulation and cardiac muscle of indiv...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,评审
doi:10.1590/s0066-782x2007001500009
更新日期:2007-09-01 00:00:00
abstract:BACKGROUND:Transvenous lead extraction (TLE) of cardiac implantable electronic devices (CIED) is an uncommon procedure and requires specialized personnel and adequate facilities. OBJECTIVES:To evaluate the effectiveness and safety of the removal of CIED leads and to determine risk factors for surgical complications an...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.36660/abc.20200476
更新日期:2020-12-01 00:00:00
abstract:PURPOSE:To analyse the performance of the artificial cardiac stimulation with the VVIR pacemaker whose sensor is adjusted by the variations of the autonomic nervous system in Chagas disease patients with deficiency of the conduction system. METHODS:Forty-seven Chagas disease patients have been studied, 28 male between...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 临床试验,杂志文章
doi:10.1590/s0066-782x1998001200004
更新日期:1998-12-01 00:00:00
abstract:BACKGROUND:Ischemic preconditioning is a method that prepares and protects cells to tolerate a long period of ischemia with the least possible injury. OBJECTIVES:Evaluate the influence of ischemic preconditioning over left ventricular function during off-pump myocardial revascularization. METHOD:Forty patients with c...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,随机对照试验
doi:10.1590/s0066-782x2010000300010
更新日期:2010-03-01 00:00:00
abstract:OBJECTIVE:To determine the diagnostic accuracy of echocardiography for indicating surgery without catheterization in patients with congenital heart disease through a prospective analysis and comparison of the echocardiographic diagnosis with the intraoperative findings, or invasive study, or both. METHODS:From Februar...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2005000500006
更新日期:2005-05-01 00:00:00
abstract::We describe the treatment of a patient presenting with very-late stent thrombosis with the use of a drug-coated balloon. In this patient, optical coherence tomography disclosed that ruptured and complicated neoatherosclerosis was the underlying substrate responsible for the episode of very-late stent thrombosis. The p...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20160089
更新日期:2016-06-01 00:00:00
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20150053
更新日期:2015-07-01 00:00:00
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2010005000137
更新日期:2010-10-01 00:00:00
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,评审
doi:10.1590/s0066-782x2009001200026
更新日期:2009-12-01 00:00:00
abstract::Six days old neonate with pulmonary atresia and intact ventricular septum is reported in which a communication was established between the right ventricle and the pulmonary artery. The membraneous atresia was perforated with a special radiofrequency catheter 2F connected to a Hat 200S radiofrequency generator (Osypka)...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1995-03-01 00:00:00
abstract:OBJECTIVE:To evaluate the effectiveness of prophylactic intra-aortic balloon (IAB) in elective myocardial revascularization surgery (MRS), to prevent trans or post-operative infarction and reduce intra-hospital mortality in patients with low left ventricular ejection fraction. METHODS:Using a cohort study model, 239 p...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2006000200004
更新日期:2006-02-01 00:00:00
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 临床试验,杂志文章
doi:
更新日期:1996-08-01 00:00:00
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:2000-01-01 00:00:00
abstract::A 56-year-old female with unstable angina, presented an acute embolic ischaemic stroke of right medium cerebral artery during elective coronary angiography. Complete patency was achieved after an intraarterial infusion of rt-PA (60mg/60min) with important functional improvement. ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1996-09-01 00:00:00
abstract:BACKGROUND:The monocrotaline (MCT)-induced pulmonary arterial hypertension model is one of the most reproduced today, presenting as a limitation the absence of plexiform lesions, typical manifestations of the severe disease in humans. OBJECTIVE:To evaluate the severity of MCT-induced pulmonary arteriopathy by patholog...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.36660/abc.20190306
更新日期:2020-09-01 00:00:00
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,评审
doi:
更新日期:1996-07-01 00:00:00
abstract:PURPOSE:To analyze, by cross-sectional echocardiography, morphological features of the atrial atrioventricular and ventricular septum potentially involved in the genesis of fixed subaortic stenosis. METHODS:Forty three children with fixed subaortic stenosis were compared with 86 normal children, matched by age, sex an...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1996-10-01 00:00:00
abstract:BACKGROUND:Hypertrophic cardiomyopathy (HCM) is the most common heart disease of genetic origin in the world population, with a prevalence of at least 1/500. The association with systemic arterial hypertension (SAH) is not uncommon, as it affects approximately 25% of the world population. Most studies aim at the differ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20190176
更新日期:2019-09-02 00:00:00
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2010000100013
更新日期:2010-01-01 00:00:00
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2003000600003
更新日期:2003-06-01 00:00:00
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章,评审
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更新日期:2010-09-01 00:00:00
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2006000300010
更新日期:2006-03-01 00:00:00
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20150101
更新日期:2015-11-01 00:00:00
abstract:BACKGROUND:Studies have shown that pre/postnatal undernutrition leads to higher risk of non communicable diseases such as diabetes, hypertension and obesity in adulthood. OBJECTIVE:To determine whether overweight adolescents with mild stunting [height-for-age Z scores (HAZ) in the range <-1 to ≥ -2] have higher blood ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2011005000115
更新日期:2012-01-01 00:00:00
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journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.5935/abc.20170176
更新日期:2017-12-01 00:00:00
abstract::A 61 year-old Chagasic woman, with previous left ventricular systolic disfunction, ventricular tachychardia and cardiac pacemaker, presented cardiac arrest in asystolia after surgical ressection of apical aneurysm. ...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.1590/s0066-782x2003001000010
更新日期:2003-08-01 00:00:00
abstract::A case of pulmonary atresia with intact ventricular septum and a hypoplastic right ventricle, with three wall formed portions, that became naturally well developed until 2 years of age, is related. A Blalock-Taussig shunt had been performed early in life. Z value of tricuspid valve of 0.3 and left ventricular in ECG h...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:In Chagas' disease endemic regions, there has been for many years a recurrent empirical observation that coronary artery disease (CAD) is uncommon in patients with Chagas' disease. Previous pathological and invasive coronary angiography studies led to controversial results. OBJECTIVE:We sought to investigat...
journal_title:Arquivos brasileiros de cardiologia
pub_type: 杂志文章
doi:10.36660/abc.20200342
更新日期:2020-12-01 00:00:00