Fetal and Neonatal Cardiology Program, Division of Cardiology, Department of Pediatrics, University of Alberta, Edmonton, AB, Canada.
Published: June 2013
AI Article Synopsis
Article Abstract
Objective: The purpose of this study was to examine the presence and frequency of antegrade late diastolic arterial blood flow (ALDAF) in the fetus and to determine its contribution to cardiac output.
Study Design: We evaluated the presence of ALDAF in 457 fetal and 21 postnatal echocardiograms. The timing of ALDAF to the ventricular systolic Doppler recording (ALDAF-V) was compared with the mechanical atrioventricular interval and, in neonates, the electrical PR interval. Velocity time integrals of ALDAF and the ventricular systolic Doppler signals were measured, and the percent contribution of ALDAF was calculated.
Results: ALDAF was observed in 365 of 457 studies and included all <11 weeks' gestations. Strong correlation between ALDAF-V, atrioventricular interval, and electrical PR interval suggests that ALDAF coincides with atrial contraction. ALDAF contributed substantially to cardiac output in early gestation with later decline.
Conclusion: ALDAF results from atrial contraction. Increasing gestational age results in less ALDAF, and reduced ALDAF contribution to cardiac output likely due to improved diastolic function.
Introduction: Traumatic obturator-type anterior dislocation of the hip with an ipsilateral subtrochanteric fracture is rarely encountered in clinical practice. This case presentation described a trauma patient with such a rare scenario.
Case Report: This paper reports a case of a 20-year-old Amhara ethnic male patient who had a traumatic anterior dislocation of the hip associated with an ipsilateral subtrochanteric femur fracture after a truck rolled over.
This study investigated the occurrence of branch thrombosis in patients treated for aortic arch issues using an arch branched device (ABD), focusing on how clinical and geometric factors may influence this risk.
Out of 39 patients, thrombus formation was observed in 10% of branches, primarily associated with specific measurements like wider stent diameters and higher body mass index (BMI).
Overall, the technical success of the procedure was high at 97%, but there were notable rates of serious adverse events, early and late mortality, and stroke following the treatment.
Background: Previous reports have demonstrated the safety and efficacy of performing early Kawashima procedure (KP). Despite this, more recent studies have shown that the average age at the time of operation remains greater than one year of age. We report our experience with performing KP at an earlier age than previously reported.
Background: Anorectal malformations (ARMs) are congenital anomalies of the anorectum and the genitourinary system that result in a broad spectrum of hindgut anomalies. Despite surgical correction patients continue to have late postoperative genitourinary and colorectal dysfunction that have significant impact on quality of life.
Aim: This paper will review the current evidence and discuss the evaluation and management of postoperative patients with ARMs who present with persistent defecation disorder.
The study aimed to evaluate the effectiveness and outcomes of thoracic endovascular repair (TEVAR) using an antegrade approach for treating thoracic aortic diseases.
Researchers analyzed data from 14 patients who underwent TEVAR over an 11-year period, noting a mix of urgent and elective procedures, and found that technical success was achieved in all cases.
While the immediate procedures were generally successful, there were notable instances of early and late mortality, with a significant number of patients requiring reinterventions due to complications like type I endoleak.
