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Understanding Pediatric Cardiovascular Health Study Guide

This guide covers the fundamental concepts of cardiovascular pathophysiology, including alterations in blood vessels, heart valves, and inflammatory conditions affecting the heart. It explores the mechanisms, clinical manifestations, and common disorders within these categories, providing a comprehensive understanding of cardiovascular health and disease.

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Structure and Function of the Cardiovascular System

Structure and Function of Cardiovascular Systems

This content covers the structure and function of the cardiovascular and lymphatic systems, including blood vessels, heart anatomy, cardiac cycle, and coronary circulation.

  • Arterial vessels
  • Elastic arteries
  • Muscular arteries
  • Veins
  • Muscle pump
  • Capillaries
  • Precapillary sphincters
  • Endothelium roles
  • Vasomotion
  • Mediastinum
  • Heart wall layers
  • Epicardium
  • Myocardium
  • Endocardium
  • Pericardium
  • Pericardial cavity
  • Heart chambers
  • Interatrial septum
  • Interventricular septum
  • Great vessels

Cardiac Physiology and Conduction Pathways

Coronary vessels facilitate nutrient exchange while the sinoatrial node, atrioventricular node, and Purkinje fibers manage the pathway of heartbeat.

  • Coronary vessels
  • Coronary capillaries
  • Coronary sinus
  • Pathway of heartbeat
  • Sinoatrial node
  • Atrioventricular node
  • Atrioventricular bundle
  • Purkinje fibers
  • Cardiac pacemaker
  • Spontaneous depolarization

Alterations of Cardiovascular Function

Alterations of Cardiovascular Function

Overview of cardiovascular diseases including genetic, neurohumoral, and inflammatory mechanisms, endothelial injury, and diseases of the veins, arteries, and blood vessels.

  • Cardiovascular diseases
  • Endothelial injury
  • Remodeling
  • Reperfusion injury
  • Varicose veins
  • Chronic venous insufficiency
  • Venous stasis ulcers
  • Superior vena cava syndrome
  • Vasculitis
  • Hypertension
  • Orthostatic hypotension
  • Aneurysm
  • Thrombus formation
  • Embolism
  • Atherosclerosis
  • Peripheral artery disease
  • Coronary artery disease
  • Myocardial stunning
  • Acute coronary syndromes

Hypertension and Orthostatic Hypotension Overview

This content discusses hypertension types, risk factors, pathophysiology, and clinical manifestations, as well as orthostatic hypotension.

  • Primary hypertension
  • Secondary hypertension
  • Isolated systolic hypertension
  • Malignant hypertension
  • Target organ damage
  • Cardiac output
  • Total peripheral resistance
  • Sympathetic nervous system activity
  • Endothelial dysfunction
  • Vascular remodeling
  • Orthostatic hypotension

Cardiac Action Potentials and ECG Fundamentals

Cardiac Physiology and Action Potentials

This content examines cardiac action potentials, depolarization and repolarization phases, and electrocardiogram components.

  • Pacemaker cells
  • Non pacemaker cells
  • Resting membrane potential
  • Depolarization
  • Repolarization
  • Plateau phase
  • Sodium channels
  • Calcium channels
  • Potassium channels
  • Sarcoplasmic reticulum
  • Calcium-ATPase pump
  • Na-K ATPase pump
  • Refractory period
  • Electrocardiogram (ECG)
  • P wave
  • PR interval
  • QRS complex
  • ST interval
  • QT interval

Vascular and Cardiac Pathophysiology

Cardiology Alterations: Aneurysms and Embolism

Clinical manifestations, complications, and types of aneurysms and embolism within the cardiovascular system.

  • Aneurysm types
  • True aneurysms
  • False aneurysms
  • Fusiform aneurysms
  • Saccular aneurysms
  • Aortic dissection
  • Embolism
  • Dislodged thrombus
  • Infarction
  • Necrosis

Cardiology Alterations and Vascular Disorders

This content discusses pathophysiology of venous thrombosis, atherosclerosis, coronary artery disease, dyslipidemia, myocardial ischemia, and myocardial infarction.

  • Arterial thrombosis
  • Atherosclerosis progression
  • Coronary artery disease risk factors
  • Dyslipidemia and lipoproteins
  • Myocardial ischemia types
  • Acute coronary syndromes
  • Myocardial infarction types
  • Myocardial remodeling
  • Angiotensin II effects
  • Coronary vasospasm
  • Peripheral vascular disease
  • Claudication

Cardiology Alterations and Valvular Disorders

Pathophysiology of peripheral vascular disease, valvular dysfunction, infective endocarditis, and pericarditis.

  • Thromboangiitis obliterans
  • Acute rheumatic fever
  • Rheumatic heart disease
  • Peripheral artery disease
  • Intermittent claudication
  • Valvular stenosis
  • Valvular regurgitation
  • Myocardial hypertrophy
  • Aortic stenosis
  • Mitral stenosis
  • Aortic regurgitation
  • Mitral regurgitation
  • Tricuspid regurgitation
  • Mitral valve prolapse syndrome
  • Pulmonic stenosis
  • Infective endocarditis
  • Pericarditis

Cardiology Alterations and Heart Failure

This content discusses diseases of heart muscle, cardiomyopathies, and the pathophysiologic conditions of systolic, diastolic, left, and right heart failure.

  • Pericarditis
  • Constrictive pericarditis
  • Pericardial effusion
  • Tamponade
  • Cardiomyopathies
  • Hypertrophic cardiomyopathy
  • Dilated cardiomyopathy
  • Restrictive cardiomyopathy
  • Heart failure
  • Systolic heart failure
  • Diastolic heart failure
  • Left heart failure
  • Right heart failure
  • Cor pulmonale
  • High output failure
  • Ventricular remodeling
  • Cardiac output
  • Stroke volume

Diseases of the Electrical System Dysrhythmia

  • Sinus arrhythmia
  • Simple sinus tachycardia
  • Premature atrial contractions
  • Atrial fibrillation
  • First-degree heart block
  • Third-degree complete heart block
  • Supraventricular tachyarrhythmias
  • Multifocal atrial tachycardia
  • Pre-excitation syndromes
  • Wolff-Parkinson-White syndrome
  • Accessory pathways
  • Delta wave
  • Ventricular tachycardia
  • Ventricular fibrillation
  • Asystole

Mechanisms of Cardiac Function and Regulation

Structures and Mechanisms of Cardiac Physiology

This content explores structures that control heart action, autonomic nervous system effects on the myocardium, adrenergic receptor functions, and myocardial cell contraction and relaxation processes.

  • Automaticity
  • Rhythmicity
  • Autonomic nervous system
  • Sympathetic stimulation
  • Parasympathetic stimulation
  • Norepinephrine
  • Epinephrine
  • Acetylcholine
  • Adrenergic receptor function
  • Beta-1 receptors
  • Beta-2 receptors
  • Alpha-1 receptors
  • Chronotropy
  • Inotropy
  • Cholinergic receptors
  • Nicotinic receptors
  • Myocardial cells

Cardiac Output and Hemodynamics Physiology

This content explains cardiac output, cardiac index, preload, afterload, and the factors regulating blood flow and myocardial contractility.

  • Cardiac output
  • Cardiac index
  • Ejection fraction
  • Stroke volume
  • Heart rate
  • Preload
  • Afterload
  • Frank-Starling mechanism
  • Laplace’s Law
  • Myocardial contractility
  • Poiseuille’s law
  • Blood flow resistance
  • Vascular compliance
  • Laminar and turbulent flow
  • Inotropic agents
  • Venous return
  • Baroreceptor reflex
  • Bainbridge reflex

Cardiac Physiology and Blood Pressure Regulation

This topic covers cardiac contractility, regulation of blood pressure, coronary circulation, the lymphatic system, and aging of the cardiovascular system.

  • Cardiac contractility
  • Potassium and calcium effects on heart rate
  • Mean arterial pressure
  • Pulse pressure
  • Total peripheral resistance
  • Cardiac output
  • Baroreceptors
  • Chemoreceptors
  • Hyperemia
  • Hormonal regulation of blood pressure
  • Venous pressure determinants
  • Coronary circulation and perfusion pressure
  • Autoregulation
  • Lymphatic system functions
  • Cardiovascular aging and disease

Congenital and Acquired Cardiovascular Disorders in Children

Alterations of Cardiovascular Function in Children

Alterations of CV function in children include congenital heart defects, acquired cardiovascular disorders, and heart failure.

  • Congenital heart defects
  • Congestive heart failure
  • Acyanotic defects
  • Patent ductus arteriosus
  • Atrial septal defect
  • Ventricular septal defect
  • Cyanotic defects
  • Tetralogy of Fallot Syndrome
  • Obstructive defects
  • Coarctation of the aorta
  • Hypoplastic left heart syndrome
  • Mixed defects
  • Transposition of the great arteries
  • Systemic hypertension
  • Kawasaki disease
  • Childhood myocarditis

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