Covered Stent Correction for Sinus Venosus Atrial Septal Defects, an Emerging Alternative to Surgical Repair: Results of an International Registry.

Background: Covered stent correction for a sinus venosus atrial septal defect (SVASD) was first performed in 2009. This innovative approach was initially viewed as experimental and was reserved for highly selected patients with unusual anatomic variants. In 2016, increasing numbers of procedures began to be performed, and in several centers, it is now offered as a standard of care option alongside surgical repair.

Successful radiofrequency perforation and balloon decompression of cor triatriatum sinister using novel technique, a case series.

Cor triatriatum sinister (CTS) is a rare congenital cardiac anomaly representing <0.1% of all congenital cardiac malformations. It is characterized by the presence of a left atrial (LA) membrane that leads to left ventricular inflow obstruction.

Mechanical properties of low-diameter balloon expandable covered stents.

Objectives: To determine over-dilation potential of commercially available covered stents.

Background: Covered stents including the Atrium iCast, Gore VBX, and Lifestream stents (LS) can treat ruptures, dissections, and aneurysms in small vessels. Especially in growing patients, stents often require serial dilations beyond their implant or nominal diameters.

Pediatric stroke associated with a sedentary lifestyle during the SARS-CoV-2 (COVID-19) pandemic: a case report on a 17-year-old.

The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) pandemic-associated quarantine has led to a more sedentary lifestyle in teenagers. This may increase the risk for venous thromboembolism and a subsequent source of an ischemic stroke through a patent foramen ovale (PFO). Here, we report a pediatric stroke case likely due to these factors.

Combined Transcatheter Tricuspid and Pulmonary Valve Replacement.

Background: For patients with combined tricuspid and pulmonary valve disease, operative intervention carries high mortality risk. Published reports of combined transcatheter tricuspid and pulmonary valve replacement have been limited to single cases.

Methods: A retrospective chart review was performed including all patients undergoing combined transcatheter tricuspid and pulmonary valve replacement at the Ahmanson/UCLA Adult Congenital Heart Disease Center.

Postoperative and short-term atrial tachyarrhythmia burdens after transcatheter vs surgical pulmonary valve replacement among congenital heart disease patients.

Objective: We examined the atrial tachyarrhythmia (AT) burden among patients with congenital heart disease (CHD) following transcatheter (TC-) or surgical (S-) pulmonary valve replacement (PVR).

Design/setting: This was a retrospective observational study of patients who underwent PVR from 2010 to 2016 at UCLA Medical Center.

Patients: Patients of all ages who had prior surgical repair for CHD were included.

Results of the combined U.S. multicenter postapproval study of the Nit-Occlud PDA device for percutaneous closure of patent ductus arteriosus.

Objectives: To report the results of the Nit-Occlud PDA prospective postapproval study (PAS) along with a comparison to the results of the pivotal and continued access trials.

Background: The Nit-Occlud PDA (PFM Medical, Cologne, Germany), a nitinol coil patent ductus arteriosus (PDA) occluder, was approved by the Food and Drug Administration in 2013.

Methods: The PAS enrolled a total of 184 subjects greater than 6 months of age, weighing at least 5 kg, with PDAs less than 4 mm by angiography at 11 centers.

Transcatheter native pulmonary valve and tricuspid valve replacement with the sapien XT: Initial experience and development of a new delivery platform.

Background: While the Melody valve is unable to be used for replacement of large pulmonary outflow tracts, the 29 mm Sapien XT transcatheter valve, designed specifically for aortic valve replacement, can potentially be used in these large native outflow tracts. Techniques to enable off-label use of the Sapien XT valve for large-diameter pulmonary and tricuspid valve replacement are described.

Methods: Use of the Sapien valve for transcatheter pulmonary and tricuspid valve replacement using both the commercially available Novaflex+ system and using a novel flexible delivery system was reviewed.

Echocardiography for patent ductus arteriosus including closure in adults.

Patent ductus arteriosus (PDA) represents at least 5-10% of all congenital heart defects (CHDs) making it a very important commonly diagnosed lesion. Although spontaneous closure of the PDA occurs within 24 to 48 hours after birth in the majority, those children who do not have natural or surgical closure may have a persistent PDA into adulthood. The diagnosis is most often confirmed by echocardiography that also guides catheter-based interventions and surgeries.

Transcatheter closure of a giant communication between the right pulmonary artery and left atrium in a neonate.

Direct communication between the right pulmonary artery and the left atrium is an extremely rare congenital pathologic entity characterized by right to left shunt and a rare cause of cyanosis in newborn. The value of echocardiography is emphasized in making the diagnosis as well as never before reported successful treatment with the Amplatzer vascular plug in a neonate.

Initial Kaiser Permanente Southern California Experience Embracing the New Technology of Transcatheter Closure of Atrial Septal Defects.

As a result of individual physicians' initiative, transcatheter closure of secundum atrial septal defects-a new procedure-was made available to patients in the Kaiser Permanente (KP) Southern California Region soon after the US Food and Drug Administration (FDA) approved use of the AMPLATZER Septal Occluder. This ingenious device and the procedure for its implantation are described along with results of implantation in our initial 51 pediatric and adult patients. These results are compared with other published results.

Chest pain during stenting of a native aortic coarctation: a case for acute intercostal muscle ischemia and rhabdomyolysis.

An adult male experienced severe chest pain during stenting of a native aortic coarctation. He also developed the postcoarctectomy syndrome with paradoxical hypertension and abdominal pain. Our hypothesis suggests that sudden interruption of large collateral blood flow caused acute chest wall muscle ischemia, rhabdomyolysis, and severe chest pain.