Cardiac radiofrequency ablation
Cardiac radiofrequency ablation
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Cardiac radiofrequency ablation
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View detailsCardiac pacemaker implantation
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View detailsElectrocardiogram
Electrocardiography (ECG) is a technique that uses an electrocardiograph to record the graphical representation of the electrical activity changes produced by the heart during each cardiac cycle from the body surface. During a normal cardiac cycle, each myocardial cell undergoes depolarization followed by repolarization, thereby generating an action potential. Under normal circumstances, myocardial cell depolarization proceeds in an orderly fashion, with the sinoatrial node depolarizing first, then sequentially conducting to the atria, atrioventricular node, and ventricles. The electrical signal propagates throughout the heart in the form of a depolarization wavefront. The small electric fields generated by this wavefront can be detected on the body surface, and the signals recorded by the electrocardiograph constitute the electrocardiogram.
Blood lipids
Lipid panel is a method for quantitative determination of lipids in plasma, and it is one of the routine clinical physical examination items. Abnormal blood lipids not only reflect the body's basic metabolic status but also indicate the occurrence of certain diseases. Blood lipids include triglycerides, total cholesterol, phospholipids, and free fatty acids. Lipids in plasma combine with proteins to form lipoproteins. Lipids are widely present in the human body, serving as important substances for supplying and storing energy, and also as important components of cell structures. Uses of lipid panel: To diagnose lipid metabolism disorders, such as hypercholesterolemia and hyperlipidemia. To identify the risk of atherosclerosis early and predict the risk of future cardiovascular and cerebrovascular diseases. To assist in the diagnosis of diseases such as primary biliary cholangitis, nephrotic syndrome, hepatitis, cirrhosis, and malabsorption syndrome. For patients taking lipid-lowering drugs, regular re-examination of blood lipids is necessary to monitor the condition and drug efficacy.
View detailsCoronary angiography
Coronary angiography is an interventional diagnostic technique that uses imaging methods to determine the presence of coronary artery lesions and provides a reliable basis for the diagnosis, treatment, and research of coronary heart disease. It is considered the "gold standard" for diagnosing coronary heart disease. Coronary angiography involves injecting a contrast agent to visualize the coronary arteries of the heart, thereby determining the location, extent, and scope of obstructive lesions in the coronary arteries, providing a basis for the diagnosis and treatment of coronary heart disease. Indications: Patients with symptoms of chest tightness and chest pain, suspected of having coronary heart disease, who require a definitive diagnosis. Patients with a confirmed diagnosis of coronary heart disease whose medication treatment is ineffective and who are preparing for further interventional therapy. Patients with a definitive diagnosis of coronary heart disease who are scheduled for coronary artery bypass grafting and require a detailed assessment of coronary artery lesions before surgery. Patients with heart valve disease indicated by ultrasound who are scheduled for surgery, and who are clinically suspected of also having coronary heart disease. Patients who have undergone coronary artery bypass grafting and need to assess the patency of the transplanted vessels. Patients suspected of having coronary artery malformations or other coronary artery diseases. Patients with high-risk factors for coronary heart disease who are scheduled for surgery and require routine preoperative assessment.
View detailsLeft bundle branch block
Left bundle branch block (LBBB) refers to a blockage or delay in the electrical conduction of the heart within the left bundle branch. It is often secondary to organic heart diseases such as ischemic heart disease, cor pulmonale, or cardiomyopathy. The incidence of LBBB is age-related, with a higher prevalence in older individuals. Most patients are asymptomatic, while some may experience symptoms like chest tightness or chest pain.
View detailsLeft heart failure
Left heart failure refers to left ventricular systolic or diastolic dysfunction caused by abnormal changes in cardiac structure or function due to various reasons, leading to insufficient compensatory function. This disease is characterized by pulmonary congestion and is divided into acute left heart failure and chronic left heart failure based on the time, speed, and severity of heart failure. The main manifestations are respiratory symptoms, such as dyspnea, cough, and expectoration.
View detailsAortic valve calcification
Aortic valve calcification is a cardiovascular disease caused by the comprehensive action of multiple factors, leading to a large amount of calcium deposition on the heart valves, most notably the aortic valve. This results in thickening, curling, decreased mobility, and narrowing of the valve, causing changes in its morphology and function. It is most commonly seen in isolated aortic stenosis, followed by senile degenerative changes, atherosclerosis, congenital bicuspid aortic valve malformation, and rheumatic aortic valve disease. Approximately 20% of individuals over 60 years old have aortic calcification, which is generally caused by human aging, decreased vascular elasticity, or vascular wall damage.
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