نتایج جستجو برای: right atrial involvement

تعداد نتایج: 505239  

Journal: :Arquivos brasileiros de cardiologia 2002
Antonio Carlos Pereira Barretto Charles Mady Sergio Almeida Oliveira Edmundo Arteaga Creusa Dal Bo José Antonio Franchini Ramires

OBJECTIVE To evaluate the clinical meaning of ascites and the main features of patients with ascites and endomyocardial fibrosis. METHODS We studied 166 patients with endomyocardial fibrosis (mean age 37 years, 114 women) treated over the last 20 years. Ventriculography findings, surgery or necropsy confirmed the diagnosis in all patients. Most patients belonged to New York Heart Association ...

Journal: :Circulation 1970
A R Levin M S Spach R V Canent J P Boineau

The interatrial pressure-flow dynamics in patients with right-to-left shunting at the atrial level in the presence of right heart obstruction were studied. In tricuspid atresia most of the right-to-left gradient occurred during right atrial systole. This gradient, as well as the cineangiocardiograms, indicated that almost all systemic venous return was transferred from the right to the left atr...

Journal: :Circulation 1999
K Uno K Kumagai C M Khrestian A L Waldo

Background-We studied atrial activation during induced atrial flutter in the canine sterile pericarditis model to test the hypothesis that the atrial flutter reentrant circuit includes a septal component. Methods and Results-We studied 10 episodes of induced, sustained (>5 minutes) atrial flutter in 9 dogs. In all episodes, the reentrant circuit included a septal component. In 6 episodes, there...

Journal: :Heart 2001
T Levy S Walker S Rex J Rochelle V Paul

OBJECTIVE To evaluate the incremental antifibrillatory effect of multisite atrial pacing compared with right atrial pacing in patients with drug refractory paroxysmal atrial fibrillation paced for arrhythmia prevention alone. METHODS In 20 of these patients (mean (SD) age 64 (8) years; 14 female, six male), a single blinded randomised crossover study was performed to investigate the increment...

Journal: :Journal of the American College of Cardiology 1998
P Delfaut S Saksena A Prakash R B Krol

OBJECTIVES An initial crossover study comparing dual- and single-site right atrial pacing was performed followed by a long-term efficacy and safety evaluation of dual-site right atrial pacing in patients with drug-refractory atrial fibrillation (AF). Also examined was the efficacy of two single-site right atrial pacing modes (high right atrium and coronary sinus ostium) and the long-term need f...

2013
Creticus P. Marak Ana M. Ponea Chang Shim Shagufta Shaheen Achuta K. Guddati

Primary effusion lymphoma (PEL) is a subset of large B cell lymphomas and has been mostly associated with human immunodeficiency virus infection. Rare cases have been reported in organ transplant recipients and chronic hepatitis C patients. It typically presents as an effusion in the pleural and pericardial spaces but rarely disseminates. However, involvement of the gastrointestinal tract, lymp...

2012
Bart Boerrigter Pia Trip Harm Jan Bogaard Herman Groepenhoff Frank Oosterveer Nico Westerhof Anton Vonk Noordegraaf

INTRODUCTION It is generally known that positive pressure ventilation is associated with impaired venous return and decreased right ventricular output, in particular in patients with a low right atrial pressure and relative hypovolaemia. Altered lung mechanics have been suggested to impair right ventricular output in COPD, but this relation has never been firmly established in spontaneously bre...

Journal: :Journal of cardiovascular electrophysiology 2012
Nazem Akoum Christopher McGann Gaston Vergara Troy Badger Ravi Ranjan Christian Mahnkopf Eugene Kholmovski Rob Macleod Nassir Marrouche

INTRODUCTION Sinus node dysfunction (SND) commonly manifests with atrial arrhythmias alternating with sinus pauses and sinus bradycardia. The underlying process is thought to be because of atrial fibrosis. We assessed the value of atrial fibrosis, quantified using late gadolinium enhanced-MRI (LGE-MRI), in predicting significant SND requiring pacemaker implant. METHODS Three hundred forty-fou...

Journal: :Circulation: Cardiovascular Imaging 2020

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