scholarly journals Radiofrequency Energy-Assisted Wire Atrial Septostomy to Easily Create a Large Atrial Septal Defect

2021 ◽  
Vol 12 (6) ◽  
pp. 778-782
Author(s):  
Masahiro Nishibata ◽  
Masataka Kitano ◽  
Seiich Sato
Keyword(s):  
Septal Defect ◽  
Double Outlet Right Ventricle ◽  
Atrial Septum ◽  
Radiofrequency Energy ◽  
Thin Wire ◽  
Septal Defects ◽  
Atrial Septal Defects ◽  
Atrial Septostomy ◽  
Technical Article ◽  
Radiofrequency Wire

Wire atrial septostomy, a new transcatheter technique, combines 2 atrial septal defects (ASDs) into a large one in a thickened atrial septum. Although the thin-wire-looped atrial septum between ASDs needs to be pulled deeply into a hard catheter to tear the septum, this action might harm the surrounding cardiac structures. We utilized radiofrequency wire energy to facilitate the tearing of the septum, making the procedure easier and safer. This technical article presents the modified procedure in detail; the procedure was performed in a 6-month-old boy with double outlet right ventricle and intact ventricular septum. Mini-abstract This technical article describes modified wire atrial septostomy for thickened atrial septum in detail. Radiofrequency energy facilitated a thin wire-loop in tearing the septum between 2 atrial septal defects to combine the defects into a large one. We believe that this transcatheter procedure is easier and safer than the original one not using a radiofrequency wire energy.

scholarly journals Double-Outlet Right Ventricle in a Chianina Calf

Animals ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 318
Author(s):  
Domenico Caivano ◽  
Maria Chiara Marchesi ◽  
Piero Boni ◽  
Noemi Venanzi ◽  
Giovanni Angeli ◽  
...  
Keyword(s):  
Right Ventricle ◽  
Septal Defect ◽  
Heart Defects ◽  
Double Outlet Right Ventricle ◽  
Cardiac Malformation ◽  
Septal Defects ◽  
Congenital Cardiac Malformation ◽  
The Right ◽  
Similar Complex ◽  
Echocardiographic Findings

Congenital heart defects have been occasionally reported in cattle and ventricular septal defect represents the most frequently encountered anomaly. The double-outlet right ventricle is a rare congenital ventriculoarterial malformation reported only in certain cattle breeds. We describe this rare and complex congenital cardiac malformation observed in a 10-day-old male Chianina calf. Clinical examination showed tachycardia, tachypnea, jugular pulses, cyanotic mucous membranes and a right apical systolic murmur. Transthoracic echocardiography revealed severe dilation of the right-sided cardiac chambers with a markedly hypoplastic left ventricle. Both aorta and pulmonary artery leaving the right ventricle in parallel alignment with the tricuspid valve were suggestive of a dual-outlet right ventricle. Interventricular and interatrial septal defects were also visualized. Post-mortem examination confirmed the echocardiographic findings. To the authors’ knowledge, a similar complex congenital cardiac malformation has not been reported in calves of the Chianina breed to date.

scholarly journals The role of three-dimensional transesophageal echocardiography in preoperative assessment of atrial septal defects

2015 ◽  
Vol 18 (1) ◽  
pp. 58 ◽  
Author(s):  
D. G. Tarasov ◽  
I. V. Tkachev ◽  
S. S. Kadrabulatova
Keyword(s):  
Atrial Septal Defect ◽  
Transesophageal Echocardiography ◽  
Septal Defect ◽  
Preoperative Evaluation ◽  
Three Dimensional ◽  
Maximum Diameter ◽  
Septal Defects ◽  
Atrial Septal Defects ◽  
Dimensional Echocardiography ◽  
Three Dimensional Echocardiography

An atrial septal defect is the most common congenital heart disease. Transcatheter defect closure has become widespread in recent times and the requirements for this procedure are rather strict. Two-dimensional echocardiography is limited in evaluating atrial septal defects because it provides planar images only. In order to preoperatively assess atrial septal defects, we applied three-dimensional transesophageal echocardiography and then compared the results with those of surgical operations. The maximum diameter, shape, area and localization of the atrial septal defect in 26 patients were estimated with three-dimensional echocardiography. It was found out that positive correlation existed between three-dimensional echocardiography findings and those measured during surgery. Three-dimensional echocardiography provides invaluable assistance in preoperative evaluation of atrial septal defects and in selection of treatment.

Transcatheter closure as standard treatment for most interatrial defects: experience in 200 patients treated with the Amplatzer ™ Septal Occluder

1999 ◽  
Vol 9 (5) ◽  
pp. 468-473 ◽  
Author(s):  
Felix Berger ◽  
Peter Ewert ◽  
Per G. Boöjrnstad ◽  
Ingo Dähnert ◽  
Gregor Krings ◽  
...  
Keyword(s):  
Atrial Septal Defect ◽  
Septal Defect ◽  
Transcatheter Closure ◽  
Paradoxical Embolism ◽  
Residual Shunt ◽  
Septal Defects ◽  
Atrial Septal Defects ◽  
Diagnostic Cardiac Catheterization ◽  
Long Term Follow Up

AbstractTo judge whether an Amplatzer™ Septal Occluder can be used as standard therapy instead of surgery for closure of atrial septal defects we report our experiences in 200 patients. Of these patients, 127 had an atrial septal defect with haemodynamically significant left-to-right shunt, 68 patients a persistent oval foramen after presumed paradoxical embolism, and 5 had a fenestration after Fontan-repair. Mean age was 29.8 years (0.8 to 77.7 years). Body weight ranged from 6.9 to 120.0 kg (mean 51.5 kg). After diagnostic cardiac catheterization, and balloon-sizing of the defect, we implanted Amplatzer™ Septal Occluders with stents of 4 to 28 mm diameter. Follow-up studies were obtained after 48hours, and one, six, and twelve months. Transcatheter closure of the atrial septal defect proved successful in all without any relevant residual shunts. In particular, complete closure was achieved in all patients after presumed paradoxical embolism. The mean period of follow-up is 9–5 months, with a range from 0.4 to 23.5 months, giving a total of 1898 patient months. The occlusion rate after three month was 98.1°. A trivial haemodynamically insignificant residual shunt remained in 1.9° of the patients. Fluoroscopy times ranged from 0 to 43.5 minutes, with a median of 8.7 minutes. The excellent results in the short and medium term in children and adults have resulted in using this device routinely at the present time for closure of central atrial septal defects up to a diameter of 28 mm. Final judgement, however, is only possible after long-term follow-up.

scholarly journals Identification and Morphogenesis of Vestibular Atrial Septal Defects

2020 ◽  
Vol 7 (3) ◽  
pp. 35
Author(s):  
Rohit S. Loomba ◽  
Justin T. Tretter ◽  
Timothy J. Mohun ◽  
Robert H. Anderson ◽  
Scott Kramer ◽  
...  
Keyword(s):  
Atrial Septal Defect ◽  
Septal Defect ◽  
Leading Edge ◽  
Atrial Septum ◽  
Mouse Embryos ◽  
University Of Florida ◽  
Interatrial Communication ◽  
Septal Defects ◽  
Inferior Portion ◽  
The University

Background: The vestibular atrial septal defect is an interatrial communication located in the antero-inferior portion of the atrial septum. Reflecting either inadequate muscularization of the vestibular spine and mesenchymal cap during development, or excessive apoptosis within the developing antero-inferior septal component, the vestibular defect represents an infrequently recognized true deficiency of the atrial septum. We reviewed necropsy specimens from three separate archives to establish the frequency of such vestibular defects and their associated cardiac findings, providing additional analysis from developing mouse hearts to illustrate their potential morphogenesis. Materials and methods: We analyzed the hearts in the Farouk S. Idriss Cardiac Registry at Ann and Robert H. Lurie Children’s Hospital in Chicago, IL, the Van Mierop Archive at the University of Florida in Gainesville, Florida, and the archive at Johns Hopkins All Children’s Heart Institute in St. Petersburg, Florida, identifying all those exhibiting a vestibular atrial septal defect, along with the associated intracardiac malformations. We then assessed potential mechanisms for the existence of such defects, based on the assessment of 450 datasets of developing mouse hearts prepared using the technique of episcopic microscopy. Results: We analyzed a total of 2100 specimens. Of these, 68 (3%) were found to have a vestibular atrial septal defect. Comparable defects were identified in 10 developing mouse embryos sacrificed at embryonic data 15.5, by which stage the antero-inferior component of the atrial septum is usually normally formed. Conclusion: The vestibular defect is a true septal defect located in the muscular antero-inferior rim of the oval fossa. Our retrospective review of autopsied hearts suggests that the defect may be more common than previously thought. Increased awareness of the location of the defect should optimize its future clinical identification. We suggest that the defect exists because of failure, during embryonic development, of union of the components that bind the leading edge of the primary atrial septum to the atrioventricular junctions, either because of inadequate muscularisation or excessive apoptosis.

Pacemaker and conduction disturbances in patients with atrial septal defect

2020 ◽  
Vol 30 (7) ◽  
pp. 980-985 ◽  
Author(s):  
Diana H. R. Albæk ◽  
Sebastian Udholm ◽  
Anne-Sif L. Ovesen ◽  
Zarmiga Karunanithi ◽  
Camilla Nyboe ◽  
...  
Keyword(s):  
Atrial Septal Defect ◽  
Atrioventricular Block ◽  
Right Bundle Branch Block ◽  
Septal Defect ◽  
Pacemaker Implantation ◽  
Bundle Branch Block ◽  
Conduction Disturbances ◽  
Septal Defects ◽  
Atrial Septal Defects ◽  
Background Population

AbstractObjective:To determine the prevalence of pacemaker and conduction disturbances in patients with atrial septal defects.Design:All patients with an atrial septal defect born before 1994 were identified in the Danish National Patient Registry, and 297 patients were analysed for atrioventricular block, bradycardia, right bundle branch block, left anterior fascicular block, left posterior fascicular block, pacemaker, and mortality. Our results were compared with pre-existing data from a healthy background population. Further, outcomes were compared between patients with open atrial septal defects and atrial septal defects closed by surgery or transcatheter.Results:Most frequent findings were incomplete right bundle branch block (40.1%), left anterior fascicular block (3.7%), atrioventricular block (3.7%), and pacemaker (3.7%). Average age at pacemaker implantation was 32 years. Patients with defects closed surgically or by transcatheter had an increased prevalence of atrioventricular block (p < 0.01), incomplete right bundle branch block (p < 0.01), and left anterior fascicular block (p = 0.02) when compared to patients with unclosed atrial septal defects. At age above 25 years, there was a considerably higher prevalence of atrioventricular block (9.4% versus 0.1%) and complete right bundle branch block (1.9% versus 0.4%) when compared to the background cohorts.Conclusions:Patients with atrial septal defects have a considerably higher prevalence of conduction abnormalities when compared to the background population. Patients with surgically or transcatheter closed atrial septal defects demonstrated a higher demand for pacemaker and a higher prevalence of atrioventricular block, incomplete right bundle branch block, and left anterior fascicular block when compared to patients with unclosed atrial septal defects.

Comparative effects of surgical and percutaneous repair on P-wave and atrioventricular conduction in patients with atrial septal defect – ostium secundum type

2012 ◽  
Vol 23 (1) ◽  
pp. 132-137
Author(s):  
Hassan Javadzadegan ◽  
Mehrnoush Toufan ◽  
Ali Reza Sadighi ◽  
Joyce M. Chang ◽  
Nader D. Nader
Keyword(s):  
Atrial Septal Defect ◽  
Septal Defect ◽  
P Wave ◽  
P Value ◽  
Device Closure ◽  
Wave Duration ◽  
Septal Defects ◽  
Atrial Septal Defects ◽  
P Wave Duration ◽  
Pr Interval

AbstractBoth surgical and percutaneous closures of atrial septal defects have been successful in reversal of atrial dilatation. We compared the effects of surgical and percutaneous transvenous device closure of atrial septal defect on post-operative changes of P-wave duration, PR segment, and PR interval. Electrocardiographic data were prospectively collected from 30 patients following either surgical (n equal to 16) or percutaneous (n equal to 16) repair of atrial septal defects between 2004 and 2010. A cardiologist blinded to the closure technique performed the electrocardiographic analyses. P-wave duration (98.5 plus or minus 15.4 to 86.4 plus or minus 13.2 milliseconds, p-value less than 0.05) and PR interval (162.9 plus or minus 18.5 to 140.6 plus or minus 15.2 milliseconds, p-value less than 0.05) were reduced after percutaneous transvenous device closure. P-wave duration (104.5 plus or minus 24.7 versus 83.2 plus or minus 13.3 milliseconds, p-value less than 0.05) and PR interval (173.2 plus or minus 38.7 versus 144.3 plus or minus 32.0 milliseconds, p-value less than 0.05) were also reduced after surgical closure. PR segment in the percutaneous group was significantly reduced (63.4 plus or minus 14.5 to 52.1 plus or minus 10.8 milliseconds, p-value less than 0.05), but not in the surgical group (68.6 plus or minus 18.7 versus 61.1 plus or minus 24.7 milliseconds). However, the difference in PR segment changes between the two groups was not significant (−11.3 plus or minus 15.0 versus −7.6 plus or minus 20.5 milliseconds, p-value equal to 0.18). Our analysis demonstrates that the changes between the two groups were not different and that both closure techniques reduce P-wave duration, PR segment, and PR interval within 6 months.

scholarly journals Transcatheter closure of secundum atrial septal defects with the atrial septal defect occlusion system (ASDOS): initial experience in children.

Heart ◽  
1996 ◽  
Vol 75 (1) ◽  
pp. 83-88 ◽  
Author(s):  
G. Hausdorf ◽  
M. Schneider ◽  
B. Franzbach ◽  
C. Kampmann ◽  
K. Kargus ◽  
...  
Keyword(s):  
Atrial Septal Defect ◽  
Septal Defect ◽  
Transcatheter Closure ◽  
Initial Experience ◽  
Septal Defects ◽  
Atrial Septal Defects

Persistent electrical and morphological atrial abnormalities after early closure of atrial septal defect

2004 ◽  
Vol 14 (5) ◽  
pp. 481-487 ◽  
Author(s):  
Clifford L. Cua ◽  
Elizabeth E. Sparks ◽  
David P. Chan ◽  
Curt J. Daniels
Keyword(s):  
Atrial Septal Defect ◽  
Septal Defect ◽  
Pearson Correlation ◽  
P Wave ◽  
Surgical Closure ◽  
Septal Defects ◽  
Atrial Septal Defects ◽  
Pr Interval ◽  
Early Closure ◽  
The Right

Atrial arrhythmias are associated with enlarged atrial chambers and an increased duration of the P wave. Repair of atrial defects within the oval fossa is expected to normalize atrial size. Few studies, however, have evaluated electrical and morphological atrial features after repair. Our study was performed to determine if atrial abnormalities exist after surgical closure of such atrial septal defects, and whether early closure improves outcome. We recruited patients who had undergone surgical closure of a defect within the oval fossa, so-called “secundum” atrial septal defects. Electrocardiograms, signal averaged electrocardiograms, and echocardiograms were performed. Two-tailed test and Pearson correlation was utilized for statistical analysis. The population consisted of 20 patients and 27 controls, with the mean age of the patient being 11.25 ± 5.10 years, their age at surgery 6.55 ± 5.10 years, and the time since surgery 4.70 ± 2.61 years. The size of the right (23.88 ± 6.35 ml/m2 versus 18.84 ± 4.43 ml/m2) and left (21.91 ± 12.47 ml/m2 versus 17.72 ± 4.83 ml/m2) atrium were significantly larger in the patients. The duration of the P wave (108 ± 16 ms versus 96 ± 8 ms) and the duration of the PR interval (155 ± 18 ms versus 138 ± 23 ms) were longer. No correlation existed between age or interval since surgery with atrial sizes or measurements of the signal averaged electrocardiogram. We conclude that, despite surgical repair, abnormalities exist in patients with an atrial septal defect. Early surgery does not appear to prevent the atrial abnormalities.

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