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The Role of Fetal Echocardiography in Predicting Postnatal Pulmonary Venous Obstruction in Neonates with TAPVR: A Single Center Experience.
Pediatr Cardiol
January 2025
Division of Pediatric Cardiology, UT Southwestern, Children's Medical Center, Dallas, TX, USA.
Total anomalous pulmonary venous return (TAPVR) is a high risk and rare cardiac malformation with a low prenatal detection rate and predicting obstruction in these cases is difficult. We sought to investigate fetal echocardiographic parameters associated with postnatal pulmonary venous obstruction (PPVO). We performed a retrospective review of 26 patients with TAPVR who had a fetal echocardiogram from 2010 to 2021.
View Article and Find Full Text PDFPersistent left superior vena cava with retrograde flow and absent coronary sinus in a child with ventricular septal defect and patent ductus arteriosus.
Ann Pediatr Cardiol
December 2024
Department of Pediatric Cardiology, Star Hospitals, Hyderabad, Telangana, India.
Coronary sinus (CS) defects are rare congenital cardiac anomalies that occur in isolation or with other congenital heart diseases. Persistent left superior vena cava (LSVC) is a relatively common entity that usually drains into the CS, is of no hemodynamic consequence, and is easily diagnosed on echocardiography by a dilated CS and an antegrade flow toward the heart. However, a combination of LSVC and CS defect may reverse its flow direction and CS dilation may be absent.
View Article and Find Full Text PDFTailless control of a four-winged flapping-wing micro air vehicle with wing twist modulation.
Bioinspir Biomim
January 2025
Department of Aerospace Engineering, Chungnam National University, 99 Daehak-ro, Yuseong-gu, Daejeon 34134, Republic of Korea.
This paper describes the tailless control system design of a flapping-wing micro air vehicle in a four-winged configuration, which can provide high control authority to be stable and agile in flight conditions from hovering to maneuvering flights. The tailless control system consists of variable flapping frequency and wing twist modulation. The variable flapping frequency creates rolling moments through differential vertical force from flapping mechanisms that can be independently driven on the left and right sides.
View Article and Find Full Text PDFQuantitative analysis of choroidal vascular structures and anatomical changes in pachychoroid spectrum diseases using ultra-widefield SS-OCTA.
Sci Rep
January 2025
The Department of Ophthalmology, General Hospital of Central Theater Command, No. 627 Wuluo Road, Wuchang District, Wuhan, 430000, Hubei, China.
This study used ultra-widefield swept-source optical coherence tomography angiography (UWF SS-OCTA) to analyze and compare choroidal blood flow and anatomical changes in eyes affected by central serous chorioretinopathy (CSC), pachychoroid neovasculopathy (PNV), and uncomplicated pachychoroid (UCP). The findings revealed distribution patterns of vortex veins across the three patient groups and provided initial findings insights into the origin of choroidal neovascularization (CNV) in PNV. A total of 44 patients with CSC, 38 with PNV, and 46 with UCP were included in the analysis.
View Article and Find Full Text PDFPercutaneous Embolization of No Ligated Vertical Veins After Total Anomalous Pulmonary Vein Return Operation and Risk Factors for Its Persistence.
J Cardiovasc Dev Dis
December 2024
Cardiology Department, Mother and Child Health Institute of Serbia, 11070 Belgrade, Serbia.
Background: The vertical vein (VV) ligation during the total anomalous pulmonary venous return (TAPVR) correction is still controversial. Our study aimed to define the potential risk factors for VV persistence and their percutaneous occlusion.
Methods: The retrospective cohort study included 40 patients (26 males) with TAPVR treated at the tertiary referral center from 2005 to 2024.
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