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...
Cerebral embolism, Causes, Risk Factors, and How to Prevent Recurrence
A cerebral embolism happens when a traveling blood clot (or other material) suddenly blocks an artery in the brain, cutting off oxygen to the...
Cerebral infarction, Causes and Risk Factors, Symptoms, Diagnosis, Treatment, and Recovery
Cerebral infarction is the medical term for a part of the brain being injured because it did not get enough blood and oxygen. Most...
Cerebral venous sinus thrombosis, Symptoms, Diagnosis, Imaging Tests, and Treatment Options
Cerebral venous sinus thrombosis (CVST) is an uncommon type of stroke caused by a blood clot in the brain’s venous drainage system—most often the...
Cerebrovascular disease: Overview, Causes, Risk Factors, Symptoms, Diagnosis, and Management
Cerebrovascular disease is an umbrella term for conditions that disrupt blood flow to the brain. Because brain tissue is highly “energy-hungry,” even a brief...
Chagas cardiomyopathy: Causes, Risk Factors, Symptoms, Diagnosis, and Treatment
Chagas cardiomyopathy is the heart form of Chagas disease, a long-term infection caused by the parasite Trypanosoma cruzi. For many people, the infection is...