Apical muscular ventricular septal defect closure via hybrid approach using a right ventricular stay suture.

Transcatheter closure of large apical muscular ventricular septal defects (VSDs) can be performed via transfemoral or hybrid approach. A very large apical muscular VSD was closed via a hybrid approach. A strategy for deployment of a right ventricular stay suture was utilized to minimize the risk of device embolization without the use of bypass and without externalization of a portion of the device.

Hypertrophic Cardiomyopathy in Youth Athletes: Successful Screening With Point-of-Care Ultrasound by Medical Students.

OBJECTIVES: Hypertrophic cardiomyopathy (HCM) is a life-threatening genetic cardiovascular disease that often goes undetected in young athletes. Neither history nor physical examination are reliable to identify those at risk. The objective of this study is to determine whether minimally trained medical student volunteers can use ultrasound to screen for HCM. METHODS: This was a prospective enrollment of young athletes performed at 12 area high schools and three area colleges, between May 2012 and August 2013. All participants underwent point-of-care ultrasound performed screening for HCM by trained medical students and reviewed by a pediatric cardiologist. An interventricular septum to left ventricular posterior wall ratio greater than 1.25 was considered to be abnormal (positive screen). RESULTS: A total of 2332 participants were enrolled. There were 137 (5.8%) with a positive screening for HCM, of which 7 (5.1%) were confirmed to have HCM by a pediatric cardiologist. In a small cohort with positive screen for HCM, there was a 100% sensitivity (95% confidence interval, 59.04 to 100%) and 4.86% (95% confidence interval, 1.98 to 9.76%) positive predictive value of for having HCM. CONCLUSIONS: Volunteer medical students, using point-of-care ultrasound, were able to effectively screen for HCM in young athletes.

Fetal echocardiography and its evolving impact 1992 to 2002.

The change in frequency over a 10-year time span of establishing a prenatal cardiac diagnosis was studied in infants requiring cardiac surgery in the newborn period. The frequency of prenatal diagnosis increased from 8% to 57%, resulting in earlier postnatal diagnosis and a shift toward delivery in a tertiary care center; the most commonly prenatally diagnosed lesions were either ductal dependent or single ventricular in nature.

Amphotericin B-induced hepatorenal failure in cystic fibrosis.

Although nephrotoxicity is a common and well-recognized side effect of amphotericin B, hepatotoxicity is rare. We report on a 9-year-old girl with cystic fibrosis who developed fulminant renal and hepatic dysfunction following a short course of intravenous amphotericin B for a suspected aspergillus infection, although she did not have clinical evidence of invasive aspergillosis. The toxicity became apparent after changing to liposomal amphotericin. This association of renal and hepatotoxicity with liposomal amphotericin B has not previously been reported in children.

Stent implantation for coarctation of the aorta in children <30 kg.

OBJECTIVES: Our aim was to determine key characteristics of stents commonly implanted in the aorta through bench testing and to describe our technique and acute results in patients weighing <30 kg. BACKGROUND: Despite the increasing use of stents for interventional treatment for coarctation of the aorta (CoA) in larger patients, use of large stents is controversial in small children. METHODS: Methods included bench testing of large stents, and retrospective review of all patients over 1 year of age who had stent implantation for treatment of CoA. Patients were divided into 2 groups based on weight. Paired comparisons were made before and after stent implantation, and group outcomes were compared. RESULTS: Sixty patients comprised the entire sample, with 22 patients assigned to group I (<30 kg) and 38 patients assigned to group II (>or=30 kg). The mean minimum diameters of the CoA (group I 5.0 to 10.7 mm; group II 8.0 to 15.0 mm) and the ratio of the coarctation diameter to the descending aorta diameter measured at the level of the diaphragm (CoA/DAo ratio) (group I 0.4 to 0.93; group II 0.46 to 0.94) increased significantly in both groups (all p < 0.05). The mean systolic gradient decreased significantly in both groups (group I 23.0 to 2.0 mm Hg; group II 24.0 to 2.8 mm Hg; both p = 0.001). No difference was found between the groups in the CoA/DAo ratio, residual systolic gradients, or the decrease in systolic gradient after stent implantation. There were no significant complications in patients under 30 kg. CONCLUSIONS: As in larger patients, use of large stents for treatment of CoA in small children is effective and safe in the short term. In these patients, stent redilations will be required, and follow-up is ongoing.