Welcome to the NHLBI’s Health Topics Web site. The NHLBI developed this site for patients, caregivers, and the public.
Health Topics provides science-based, plain-language information related to heart, lung, and blood diseases and conditions and sleep disorders. The site contains articles on diseases, conditions, tests, procedures, and other relevant topics, which you can e-mail, print, and share.
New topics will be added regularly.
A B C D E F G H I J K L M N O P R S T U V W X Y Z
Anemia (en Español)
Antiphospholipid Antibody Syndrome Anticardiolipin Antibody Syndrome, Hughes Syndrome, Lupus Anticoagulant Syndrome
Aplastic Anemia
Deep Vein Thrombosis Thrombophlebitis, Venous Thromboembolism, Venous Thrombosis (en Español)
Disseminated Intravascular Coagulation
Excessive Blood Clotting Hypercoagulation, Thrombophilia
Fanconi Anemia
Hemochromatosis Iron Overload Disease
Hemolytic Anemia
Hemophilia (en Español)
Immune Thrombocytopenia Immune Thrombocytopenic Purpura, Idiopathic Thrombocytopenic Purpura
Iron-Deficiency Anemia (en Español)
Aneurysm Abdominal, Aortic, Cerebral, Peripheral
Angina Angina Pectoris, chest pain (en Español)
Arrhythmia Wolff-Parkinson-White Syndrome
(en Español)
Atherosclerosis Arteriosclerosis (en Español)
Atrial Fibrillation
Cardiac Rehabilitation Cardiac Rehab
Cardiogenic Shock
Cardiomyopathy
Carotid Artery Disease
Congenital Heart Defects Congenital Heart Disease, Heart Defects
Coronary Heart Disease Coronary Artery Disease (en Español)
Coronary Heart Disease Risk Factors
Coronary Microvascular Disease Cardiac Syndrome X, Nonobstructive Coronary Heart Disease
DASH Eating Plan
Diabetic Heart Disease
Endocarditis
Heart Attack Myocardial Infarction (en Español)
Heart Block
Heart Disease in Women (en Español)
Heart Failure Congestive Heart Failure
Heart Murmur
Heart Palpitations
Heart Valve Disease
High Blood Cholesterol
High Blood Pressure Hypertension (en Español)
Holes in the Heart Congenital Heart Defects, Atrial Septal Defect, Ventricular Septal Defect, ASD, VSD
How the Heart Works
Hypotension Low Blood Pressure
Kawasaki Disease
Long QT Syndrome
Marfan Syndrome
Metabolic Syndrome
Mitral Valve Prolapse Barlow’s Syndrome
Patent Ductus Arteriosus
Pericarditis
Peripheral Arterial Disease P.A.D.
Physical Activity and Your Heart (en Español)
Raynaud's Raynauds Phenomenon
Smoking and Your Heart
Stroke
Sudden Cardiac Arrest Cardiac Arrest, Sudden Cardiac Death
Tetralogy of Fallot TOF
Varicose Veins (en Español)
Vasculitis
Alpha-1 Antitrypsin Deficiency
ARDS Acute Respiratory Distress Syndrome
Asbestos-Related Lung Diseases
Asthma (en Español)
Atelectasis
Bronchiectasis
Bronchitis (en Español)
Bronchopulmonary Dysplasia
Childhood Interstitial Lung Disease
COPD Chronic Obstructive Pulmonary Disease, Chronic Bronchitis, Emphysema (en Español)
Cough
Cystic Fibrosis
How the Lungs Work
Hypersensitivity Pneumonitis
Idiopathic Pulmonary Fibrosis Pulmonary Fibrosis
LAM Lymphangioleiomyomatosis
Pleurisy and Other Pleural Disorders Hemothorax, Pleural Effusion, Pneumothorax
Pneumonia
Primary Ciliary Dyskinesia
Pulmonary Hypertension
Respiratory Distress Syndrome
Respiratory Failure
Sarcoidosis (en Español)
Obesity Hypoventilation Syndrome Pickwickian Syndrome
Overweight and Obesity (en Español)
Automated External Defibrillator
Cardiac Catheterization Cardiac Cath
Cardiac CT CAT Scan
Cardiac MRI Cardiac Nuclear Magnetic Resonance
Cardioversion
Carotid Endarterectomy Carotid Artery Surgery
Carotid Ultrasound
Catheter Ablation Cardiac Ablation
Coronary Angiography Angiogram
Coronary Angioplasty Balloon Angioplasty, Percutaneous Coronary Intervention (en Español)
Coronary Artery Bypass Grafting Bypass Surgery, Heart Bypass Surgery
Coronary Calcium Scan
Echocardiography
Electrocardiogram EKG, ECG
Heart Surgery
Heart Transplant
Holter and Event Monitors Ambulatory EKG or ECC, Continuous EKG or ECG
Implantable Cardioverter Defibrillators
Nuclear Heart Scan Nuclear Stress Test
Pacemakers
Stents
Stress Testing
Total Artificial Heart
Transesophageal Echocardiography
Ventricular Assist Device Heart Pump
Bronchoscopy
Chest CT Scan CAT Scan
Chest MRI
Chest X Ray
Lung Function Tests Lung Function Tests, Pulmonary Function Tests
Lung Transplant
Lung Ventilation/Perfusion Scan VQ Scan, Pulmonary VQ Scan