Echocardiographic demonstration of pericardial fluid adjacent to the right atrial wall.

1983 ◽  
Vol 2 (3) ◽  
pp. 131-133
Author(s):  
J G Challender ◽  
F Winsberg
Keyword(s):  
Pericardial Fluid ◽  
Right Atrial ◽  
Atrial Wall ◽  
The Right

scholarly journals Cardiac tamponade secondary to hemorrhagic pericardial effiision in five dogs

2017 ◽  
Vol 56 (1) ◽  
pp. 9
Author(s):  
C. G. HATZIGIANNAKIS (Χ.Γ. ΧΑΤΖΗΓΙΑΝΝΑΚΗΣ) ◽  
M. E. MYLONAKIS (Μ. Ε. ΜΥΛΩΝΑΚΗΣ) ◽  
M. N. SARIDOMICHELAKIS (Μ.Ν. ΣΑΡΙΔΟΜΙΧΕΛΑΚΗΣ) ◽  
M. PATSIKAS (Μ. ΠΑΤΣΙΚΑΣ) ◽  
D. PSALLA (Δ. ΨΑΛΛΑ) ◽  
...  
Keyword(s):  
Ultrasound Examination ◽  
Histopathological Examination ◽  
Clinical Findings ◽  
Pericardial Fluid ◽  
Exercise Intolerance ◽  
Right Atrial ◽  
Atrial Wall ◽  
History Of ◽  
Cardiac Silhouette ◽  
The Right

A 7-year old female collie (case 1), a 3-year old male Caucasian-cross (case 2) and three male German shepherds with an age of 11 (case 3), 8.5 (case 4) and 10 (case 5) years, respectively, were admitted with a history of decreased appetite, depression, exercise intolerance, dyspnea and progressive abdominal enlargement, for the last 10 to 60 days. Poor body condition (5/5), muffled heart sounds (5/5), weak femoral pulse (5/5), ascites (5/5), inspiratory or inspiratory-expiratory dyspnea (5/5), pulsus paradoxus (2/5) and jugular vein distension (2/5) were the prominent clinical findings, while mature neutrophilic leukocytosis (3/5), lymphopenia (3/5), eosinopenia (3/5), hypoproteinemia (5/5) and increased urea nitrogen (3/5) were the most prevalent clinicopathologic abnormalities. Apart from a space-occupying lesion onto the right atrial wall of one dog (case 4), radiographic and ultrasound examination showed a globe-shaped cardiac silhouette (5/5), pericardial effusion (5/5), ascites (5/5) and pleural effusion (4/5). A large amount of non-clotting hemorrhagic effusion was drained during pericardiocentesis, resulting in rapid clinical recovery. Physical, chemical and cytological evaluation of the pericardial fluid was non-contributory in the differentiation between neoplastic and non-neoplastic causes of these effusions. Case 3 died 25 days post-pericardiocentesis; right atrium hemangiosarcoma and pulmonary metastases were documented on post mortem histopathological examination. Another dog (case 5) died of unknown causes one month after pericardiocentensis. On the contrary, dogs 1, 2 and 4 were still clinically healthy for a followup period of 16, 2 and 8 months, respectively.

Closure of Secundum Atrial Septal Defect with Autologous Right Atrial Patch: Case Report

2005 ◽  
Vol 8 (2) ◽  
pp. 96 ◽  
Author(s):  
Osman Tansel Dar�in ◽  
Alper Sami Kunt ◽  
Mehmet Halit Andac
Keyword(s):  
Atrial Septal Defect ◽  
Right Atrium ◽  
Septal Defect ◽  
Complete Recovery ◽  
Interatrial Septum ◽  
Right Atrial ◽  
Atrial Wall ◽  
Residual Shunt ◽  
Asd Closure ◽  
The Right

Background: Although various synthetic materials and pericardium have been used for atrial septal defect (ASD) closure, investigators are continuing to search for an ideal material for this procedure. We report and evaluate a case in which autologous right atrial wall tissue was used for ASD closure. Case: In this case, we closed a secundum ASD of a 22-year-old woman who also had right atrial enlargement due to the defect. After establishing standard bicaval cannulation and total cardiopulmonary bypass, we opened the right atrium with an oblique incision in a superior position to a standard incision. After examining the secundum ASD, we created a flap on the inferior rim of the atrial wall. A stay suture was stitched between the tip of the flap and the superior rim of the defect, and suturing was continued in a clockwise direction thereafter. Considering the size and shape of the defect, we incised the inferior attachment of the flap, and suturing was completed. Remnants of the flap on the inferior rim were resected, and the right atrium was closed in a similar fashion. Results: During an echocardiographic examination, neither a residual shunt nor perigraft thrombosis was seen on the interatrial septum. The patient was discharged with complete recovery. Conclusion: Autologous right atrial patch is an ideal material for ASD closure, especially in patients having a large right atrium. A complete coaptation was achieved because of the muscular nature of the right atrial tissue and its thickness, which is a closer match to the atrial septum than other materials.

Abstract 15570: Direct Evidence of Endo-Epicardial Dissociation of the Atrial Wall in Patients With Longstanding Persistent Atrial Fibrillation

Circulation ◽  
2015 ◽  
Vol 132 (suppl_3) ◽  
Author(s):  
Natasja de Groot ◽  
Lisette vd Does ◽  
Ameeta Yaksh ◽  
Paul Knops ◽  
Pieter Woestijne ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Direct Evidence ◽  
Persistent Atrial Fibrillation ◽  
Right Atrial ◽  
Electrode Arrays ◽  
Atrial Wall ◽  
Ablative Therapies ◽  
Epicardial Layer ◽  
Right Atrial Appendage ◽  
The Right

Introduction: Transition of paroxysmal to longstanding persistent atrial fibrillation (LsPAF) is associated with progressive longitudinal dissociation in conduction and a higher incidence of focal fibrillation waves. The aim of this study was to provide direct evidence that the substrate of LsPAF consists of an electrical double-layer of dissociated waves, and that focal fibrillation waves are caused by endo-epicardial breakthrough. Hypothesis: LsPAF in humans is caused by electrical dissociation of the endo- and epicardial layer. Methods: Intra-operative mapping of the endo- and epicardial right atrial wall was performed in 9 patients with induced (N=4), paroxysmal (N=1), persistent (N=2) or longstanding-persistent AF (N=2). A clamp of two rectangular electrode-arrays (128 electrodes; inter-electrode distance 2mm) was introduced through an incision in the right atrial appendage. Series of 10 seconds of AF were analyzed and the incidence of endo-epicardial dissociation (≥15ms) was determined for all 128 endo-epicardial recording sites. Results: In patients with LsPAF the averaged degree of endo-epicardial dissociation was highest (24.9% vs. 5.9%). Using strict criteria for breakthrough (presence of an opposite wave within 4mm and <15ms before the origin of the focal wave), the far majority (77%) of all focal fibrillation waves could be attributed to endo-epicardial excitation. Conclusions: During LsPAF considerable differences in activation of the right endo- and epicardial wall exist. Endo-epicardial fibrillation waves that are out of phase, may conduct transmurally and create breakthrough waves in the opposite layer. This may explain the high persistence of AF and the low succes rate of ablative therapies in patients with LsPAF.

scholarly journals Right Atrial Perforation Secondary to Implantable Cardioverter Defibrillator Insertion

2001 ◽  
Vol 8 (4) ◽  
pp. 283-285 ◽  
Author(s):  
Nam T Tran ◽  
Adam Zivin ◽  
Darius Mozaffarian ◽  
Riyad Karmy-Jones
Keyword(s):  
Implantable Cardioverter Defibrillator ◽  
Fibrin Glue ◽  
Lung Parenchyma ◽  
Right Atrial ◽  
Atrial Wall ◽  
Cardioverter Defibrillator ◽  
Active Fixation ◽  
The Right

Implantable cardioverter defibrillator (ICD) placements can be associated with serious complications. This paper reports a patient in whom percutaneous placement of an ICD resulted in a hemopneumothorax. This was due to an active fixation lead that perforated the right atrial wall and injured the adjacent lung parenchyma. The hemothorax was drained thoracoscopically, and the atrial injury was covered with fibrin glue.

Increased Fluorine-18 Fluorodeoxyglucose Uptake in the Right Atrial Wall in a Patient With Atrial Fibrillation

1999 ◽  
Vol 24 (2) ◽  
pp. 136-137 ◽  
Author(s):  
HIROFUMI FUJII ◽  
SEIEI YASUDA ◽  
MICHIRU IDE ◽  
WAKOH TAKAHASHI ◽  
AKIRA SHOHTSU ◽  
...  
Keyword(s):  
Atrial Fibrillation ◽  
Right Atrial ◽  
Atrial Wall ◽  
The Right ◽  
Fluorine 18 Fluorodeoxyglucose

Effusive–constrictive pericarditis in the spectrum of pericardial compressive syndromes

Heart ◽  
2021 ◽  
Vol 107 (6) ◽  
pp. 450-455
Author(s):  
Scott E Janus ◽  
Brian D Hoit
Keyword(s):  
Constrictive Pericarditis ◽  
Clinical Evidence ◽  
Pericardial Fluid ◽  
Right Atrial ◽  
Pericardial Disease ◽  
Non Invasive ◽  
Prevalence Estimates ◽  
Diagnostic Modalities ◽  
The Right ◽  
Effusive Constrictive Pericarditis

When pericardial fluid accumulates and exceed the reserve volume of the pericardium or when the pericardium becomes scarred and inelastic, one of three pericardial compressive syndromes may ensue, namely, cardiac tamponade (CT), characterised by the accumulation of pericardial fluid under pressure; constrictive pericarditis (CP), the result of scarring and loss of the normal elasticity of the pericardial sac; and effusive–constrictive pericarditis (ECP), characterised by the concurrence of a tense pericardial effusion and constriction of the heart by the visceral pericardium. Although relatively uncommon, prevalence estimates vary widely and depend on the nature of the cohorts studied, the methods used to diagnose ECP and the manner in which ECP is defined. Most cases of ECP are idiopathic, reflecting the frequency of idiopathic pericardial disease in general, and other causes include radiation, malignancy, chemotherapy, infection and postsurgical/iatrogenic pericardial disease. The diagnosis of ECP often becomes apparent when pericardiocentesis fails to decrease the right atrial pressure by 50% or to a level below 10 mm Hg. Important non-invasive diagnostic modalities include echocardiography, cardiac magnetic resonance and, to a lesser extent, cardiac CT. In cases with clear evidence of pericardial inflammation, a trial of an anti-inflammatory regimen is warranted. A complete pericardiectomy should be reserved for refractory symptoms or clinical evidence of chronic CP.

Abstract 2243: Real-Time Computed Tomography (RT-CT) for Guidance of Catheter Navigation, Transseptal Puncture and Anatomically Targeted Radiofrequency Ablation

Circulation ◽  
2007 ◽  
Vol 116 (suppl_16) ◽  
Author(s):  
Timm Dickfeld ◽  
Martin Engelhardt ◽  
Katrina Read ◽  
Christopher Kocher ◽  
Jagan Akella ◽  
...  
Keyword(s):  
Computed Tomography ◽  
Real Time ◽  
Femoral Vein ◽  
Lateral Wall ◽  
Right Atrial ◽  
Transseptal Puncture ◽  
Atrial Wall ◽  
Accuracy And Precision ◽  
Catheter Navigation ◽  
The Right

Background: Recent ablation strategies for complex arrhythmias such as atrial fibrillation or ischemic ventricular tachycardia are increasingly based on anatomic considerations. While fluoroscopy and 3D-mapping systems are widely used to guide these ablations, they are limited by poor soft tissue visualization and the lack of real-time anatomic data. Therefore, this study sought to evaluate if real-time computed tomography (RT-CT) could overcome these limitations and guide catheter navigation, transseptal puncture and anatomically targeted ablation. Methods: Catheter real-time guidance was assessed in 5 swine (40kg) using a 40-slice RT-CT. First, right/left heart catheterization was performed from the femoral vein and artery with the goal to access all cardiac chambers and the great cardiac vessels. Second, transseptal puncture was attempted with targeted ablations at pre-specified locations at the left lateral wall. Third, targeted ablation at the pulmonary vein (PV) orifice and repeat ablations at the right lateral wall were created to assess accuracy and precision, respectively. Fourth, creation of a straight ventricular four-point line was attempted. Necropsy was performed to assess possible complications and to compare the location of the ablation sites with the CT images. Results: Catheter navigation was performed safely from the femoral vein to the pulmonary artery and the femoral artery to the left ventricle. Misguided catheters to the renal vein, jugular vein, and carotid artery were correctly identified and removed. Transseptal puncture using a Brocken-brough needle was successfully performed and confirmed with anatomically targeted ablations at the left lateral atrial wall. Accuracy as assessed by PV ablations was in the range of 1–3mm. Repeat ablations in the right atrial wall revealed a precision of 2–3mm. Maximum deviation from a straight 4-point ventricular line was 2.8mm. No complications were seen at necropsy. Conclusions: Catheter navigation (in all four cardiac chambers) as well as transseptal puncture can be performed guided exclusively by RT-CT. Anatomically targeted ablations can be created with good accuracy and precision under real-time guidance. This suggests a possible role of RT-CT to guide ablation procedures.

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