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Truncus Arteriosus: Cardiac Pathology and Surgery
48 chapters
Chapters
5 Coronary Arteries Truncus Arteriosus: Cardiac Pathology and Surgery · 4:42 Explore the origin and anatomy of the coronary arteries as they arise from the sinuses of Valsalva, and learn why a thorough understanding of their course is critical before any cardiac intervention.
4 The Normal Aortic Arch and Great Vessel Branching Truncus Arteriosus: Cardiac Pathology and Surgery · 4:04 Explore the elegant anatomy of the normal aortic arch and its characteristic branching pattern, tracing the aorta's rise from the heart and its three major vessels as they split in precise sequence over the left main bronchus.
1 The Fundamental Defect Truncus Arteriosus: Cardiac Pathology and Surgery · 4:06 Explore the embryological origins of truncus arteriosus, where a failure of the aorticopulmonary septum to form results in a single great vessel supplying systemic, pulmonary, and coronary circulation simultaneously.
1 Normal Fetal Cardiac Development Truncus Arteriosus: Cardiac Pathology and Surgery · 4:22 Explore the fascinating journey of fetal cardiac development, from the earliest heartbeat on day twenty to the formation of a primitive single-tube heart, tracing how the basic structures evolve into the foundation of a fully functioning cardiovascular system.
3 Normal Valve Function Truncus Arteriosus: Cardiac Pathology and Surgery · 3:24 Explore the essential mechanics of healthy heart valves and discover how these four remarkable structures work in perfect coordination to maintain proper blood flow and circulation throughout the body.
2 Normal Four-Chamber Heart Anatomy Truncus Arteriosus: Cardiac Pathology and Surgery · 4:21 Explore the fundamental anatomy of the healthy four-chamber heart, tracing how blood flows through each chamber, valve, and vessel in its precisely coordinated circuit. Understanding this normal baseline is essential for grasping how conditions like truncus arteriosus disrupt the heart's elegant design.
2 How Blood Flows in Truncus Arteriosus — Compared to Normal Truncus Arteriosus: Cardiac Pathology and Surgery · 3:49 A clear comparison of normal cardiac blood flow versus the altered circulation in truncus arteriosus, revealing how a single shared vessel changes everything about how oxygen-rich and oxygen-poor blood moves through the heart.
3 The Hemodynamic Catastrophe Truncus Arteriosus: Cardiac Pathology and Surgery · 3:47 A deep dive into the dangerous hemodynamic spiral that unfolds after birth in truncus arteriosus, revealing how falling pulmonary resistance triggers a flooding of the lungs, strains the heart, and starves the body of the blood flow it desperately needs.
4 The Truncal Valve Truncus Arteriosus: Cardiac Pathology and Surgery · 3:21 Dive into the unique anatomy of the truncal valve, exploring its variable leaflet structure and why this single valve—standing in for both the aortic and pulmonary valves—is prone to dysfunction like leaking or narrowing over time.
5 Classification — Where Do the Pulmonary Arteries Come From? Truncus Arteriosus: Cardiac Pathology and Surgery · 5:07 A deep dive into the Collett and Edwards classification system for truncus arteriosus, this chapter breaks down the four distinct anatomical types and teaches listeners how to identify where the pulmonary arteries originate in each variation.
7 Clinical Presentation at Admission Truncus Arteriosus: Cardiac Pathology and Surgery · 3:09 A six-week-old infant arrives in critical condition with a racing heart rate and signs of volume overload, illustrating the urgent and life-threatening clinical picture that brings truncus arteriosus patients to medical attention.
6 Associated Anomalies Truncus Arteriosus: Cardiac Pathology and Surgery · 5:27 Explore the six key cardiac anomalies commonly associated with truncus arteriosus, from the ever-present ventricular septal defect to right aortic arch variations, giving listeners a clear understanding of how this complex condition rarely appears in isolation.
1 Echocardiography Truncus Arteriosus: Cardiac Pathology and Surgery · 3:53 Echocardiography takes center stage as the primary diagnostic tool for identifying truncus arteriosus, revealing how clinicians use this imaging technique to detect the characteristic single overriding vessel and ventricular septal defect in newborns.
3 Cardiac Catheterization Truncus Arteriosus: Cardiac Pathology and Surgery · 3:54 Diving into the diagnostic world of cardiac catheterization, this chapter explores how this essential procedure is used to navigate and assess the complex anatomy of truncus arteriosus, guiding clinicians through the heart's abnormal single-vessel structure.
4 Genetic Testing Truncus Arteriosus: Cardiac Pathology and Surgery · 4:50 Genetic testing is a critical first step when truncus arteriosus is diagnosed, and here you'll learn why screening for the 22q11.2 deletion is essential for every patient and which tests — FISH or chromosomal microarray — should be ordered without delay.
2 CT Angiography Truncus Arteriosus: Cardiac Pathology and Surgery · 3:19 Dive into the diagnostic power of CT angiography as a tool for mapping the complex cardiovascular anatomy of newborns with truncus arteriosus, exploring how its superior spatial resolution and three-dimensional imaging illuminate pulmonary artery courses and branching patterns with remarkable clarity.
1 The Goal of Surgery Truncus Arteriosus: Cardiac Pathology and Surgery · 4:26 Dive into the fundamental objective of surgical intervention for truncus arteriosus, exploring how the abnormal single-trunk anatomy causes dangerous pulmonary overcirculation and why creating two separate pathways is the essential goal of repair.
2 Timing Truncus Arteriosus: Cardiac Pathology and Surgery · 3:58 Dive into the critical timing of surgical intervention for truncus arteriosus type two, where you'll learn why the two-to-four week neonatal window is the golden opportunity for repair that can make all the difference in a newborn's outcome.
3 Surgical Technique — Step by Step Truncus Arteriosus: Cardiac Pathology and Surgery · 4:01 A detailed walkthrough of the truncus arteriosus surgical repair process guides listeners through each critical step, from sternotomy and cardiopulmonary bypass setup to anatomical assessment, building a clear understanding of how surgeons prepare and navigate this complex procedure.
4 Types of RV-PA Conduits Truncus Arteriosus: Cardiac Pathology and Surgery · 4:27 Explore the four types of right ventricle-to-pulmonary artery conduits used in truncus arteriosus repair, breaking down the advantages and trade-offs of each option, from pulmonary homografts to alternative choices when ideal options aren't available.
5 The Immediate Post-Operative State Truncus Arteriosus: Cardiac Pathology and Surgery · 4:34 Exploring the critical period immediately following truncus arteriosus repair, this chapter examines how the right and left ventricles must rapidly adapt to their new hemodynamic roles and the physiological challenges that emerge once the heart begins functioning in its corrected state.
2 Clinical Significance Truncus Arteriosus: Cardiac Pathology and Surgery · 5:01 Exploring the clinical significance of aberrant right subclavian artery, this chapter examines why this hemodynamically benign condition still demands surgical awareness, revealing how its unusual anatomical course behind the esophagus can critically impact operative planning and technique.
1 Why the Conduit Inevitably Fails Truncus Arteriosus: Cardiac Pathology and Surgery · 3:54 A fixed conduit cannot grow with a child, and this song breaks down why somatic growth inevitably leads to obstruction, pressure gradients, and the need for reintervention after right ventricular outflow tract reconstruction.
1 Embryology Truncus Arteriosus: Cardiac Pathology and Surgery · 3:24 A deep dive into the embryological origins of truncus arteriosus, tracing how the paired aortic arches develop and why the precise regression of specific structures is critical to normal heart formation.