Cardiac Rupture: Types, Causes, Symptoms, Diagnosis, and Emergency Treatment
Cardiac rupture is a medical emergency in which a tear forms in the heart’s wall or in supporting structures that keep blood moving in...
Cardiac sarcoidosis: Overview, Causes, Risk Factors, Symptoms, Diagnosis, and Treatment
Cardiac sarcoidosis is a form of inflammatory heart disease caused by sarcoidosis, a condition in which clusters of immune cells (called granulomas) form in...
Cardiac syndrome X, Why Angina Happens Without Blockages, Symptoms, Diagnosis, and Care
Cardiac syndrome X is a frustrating diagnosis for many people because the symptoms can feel unmistakably “heart-related,” yet standard coronary angiography does not show...
Cardiogenic shock, Key Warning Signs, Causes, Diagnosis, and Emergency Treatment
Cardiogenic shock is a medical emergency in which the heart suddenly cannot pump enough blood to meet the body’s needs. It is not simply...
Cardiomegaly, Common Causes, Risk Factors, Diagnosis, and Treatment Options
Cardiomegaly means an enlarged heart. It is not a diagnosis by itself so much as a sign that something has changed in the heart’s...
Cardiomyopathy, Types Explained, Causes, Symptoms, Diagnosis, and Treatment Options
Cardiomyopathy is a group of diseases that affect the heart muscle itself. Instead of a single problem like a blocked artery, cardiomyopathy changes how...
Cardiorenal syndrome, Heart–Kidney Connection, Triggers, Testing, and Management Plan
Cardiorenal syndrome describes the tight, two-way relationship between the heart and kidneys—where dysfunction in one organ can trigger or worsen dysfunction in the other....
Carditis, Causes and Risk Factors, Warning Signs, and When to Seek Care
Carditis means inflammation affecting one or more layers of the heart. It is not a single disease, but a useful umbrella term that includes...
Carotid artery aneurysm, Symptoms, Stroke Risk, Diagnosis, and Treatment Choices
A carotid artery aneurysm is an abnormal widening of the carotid artery—one of the major blood vessels that carries oxygen-rich blood to the brain....
Carotid artery disease, Causes, Risk Factors, and Proven Prevention Strategies
Carotid artery disease happens when plaque—made of cholesterol, inflammatory cells, and calcium—builds up inside the carotid arteries in the neck. These vessels supply much...
Carotid artery occlusion: Symptoms, Diagnosis, and Evidence-Based Management
Carotid artery occlusion means a carotid artery in the neck—most often the internal carotid artery—has become severely narrowed or completely blocked. Because these vessels...
Carotid artery stenosis, Symptoms, Stroke Risk, Diagnosis, and Treatment Options
Carotid artery stenosis is narrowing of the carotid arteries in the neck—most often the internal carotid artery—caused by plaque buildup. Many people feel completely...
Carotid-cavernous fistula, Symptoms, Eye Redness, Diagnosis, and Treatment Options
A carotid-cavernous fistula (CCF) is an abnormal connection between carotid arteries and the cavernous sinus, a venous “collecting space” behind the eye. Instead of...
Carotidynia: Symptoms, Diagnosis, Imaging Findings, and Treatment
Carotidynia is a clinical pattern—usually one-sided pain and tenderness along the front side of the neck—centered over the carotid artery, the main blood vessel...
Cerebral amyloid angiopathy: Long-Term Management, Blood Pressure Targets, and Prevention
Cerebral amyloid angiopathy (CAA) is a small-vessel disease of the brain in which amyloid-beta protein builds up in the walls of tiny arteries and...
Cerebral aneurysm: Causes, Risk Factors, Diagnosis, and Modern Repair Methods
A cerebral aneurysm (also called an intracranial aneurysm) is a weak spot in a brain artery that bulges outward, like a thin area on...