dict.md logo
Choose languages of interest
SELECT >>
English
German
French
Portuguese
Spanish
 
Add further languages:
Add all languages
Advertisement:
Definition
 
enEnglish
Angina Pectoris definition: The symptom of paroxysmal pain consequent to MYOCARDIAL ISCHEMIA usually of distinctive character, location and radiation. It is thought to be provoked by a transient stressful situation during which the oxygen requirements of the MYOCARDIUM exceed that supplied by the CORONARY CIRCULATION.
angina pectoris definition: recurring thoracic pain or discomfort which occurs when a part of the heart does not receive enough blood; usually caused by exertion or excitement.
Angina definition: Previous or current symptoms described as chest pain or pressure, jaw pain, arm pain, or other equivalent discomfort suggestive of cardiac ischemia. (NIH Roadmap Cardiovascular Data Standards Working Group)
Angina definition: A heart condition marked by paroxysms of chest pain due to reduced oxygen to the heart.
Anti-Arrhythmia Agents definition: Agents used for the treatment or prevention of cardiac arrhythmias. They may affect the polarization-repolarization phase of the action potential, its excitability or refractoriness, or impulse conduction or membrane responsiveness within cardiac fibers. Anti-arrhythmia agents are often classed into four main groups according to their mechanism of action: sodium channel blockade, beta-adrenergic blockade, repolarization prolongation, or calcium channel blockade.
antiarrhythmic agent definition: group of agents used for the treatment or prevention of cardiac arrhythmias; they may effect the polarization-repolarization phase of the action potential, its excitability or refractoriness, or impulse conduction or membrane responsiveness within cardiac fibers.
Antiarrhythmic Agent definition: Agents used for the treatment or prevention of cardiac arrhythmias; they may effect the polarization-repolarization phase of the action potential, its excitability or refractoriness, or impulse conduction or membrane responsiveness within cardiac fibers.
arrhythmic agent definition: agent causing or promoting cardiac arrhythmias.
arrhythmia definition: any variation from the normal rhythm or rate of the heart beat.
Arrhythmias, Cardiac definition: Any disturbances of the normal rhythmic beating of the heart or MYOCARDIAL CONTRACTION. Cardiac arrhythmias can be classified by the abnormalities in HEART RATE, disorders of electrical impulse generation, or impulse conduction.
Arrhythmia definition: Any variation from the normal rate or rhythm (which may include the origin of the impulse and/or its subsequent propagation) in the heart.
Echocardiography definition: Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.
echocardiography definition: ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues; the standard approach is transthoracic.
echocardiography definition: A procedure that uses ultrasonic waves directed over the chest wall to obtain a graphic record of the heart's position, motion of the walls, or internal parts such as the valves.
heart sonography definition: graphic registration of the frequency and intensity of heart sounds.
Echocardiography definition: A test that uses high-frequency sound waves (ultrasound) to create an image of the heart.
Edema, Cardiac definition: Abnormal fluid retention by the body due to impaired cardiac function or heart failure. It is usually characterized by increase in venous and capillary pressure, and swollen legs when standing. It is different from the generalized edema caused by renal dysfunction (NEPHROTIC SYNDROME).
Electric Countershock definition: An electrical current applied to the HEART to terminate a disturbance of its rhythm, ARRHYTHMIAS, CARDIAC. (Stedman, 25th ed)
electric countershock heart resuscitation definition: electric shock applied to the heart to terminate a disturbance of its rhythm, or to resuscitate.
Cardioversion definition: The conversion of one cardiac rhythm or electrical pattern to another, almost always from an abnormal to a normal one, by pharmacologic means using medications or by electrical cardioversion using a defibrillator.
Heart definition: The hollow, muscular organ that maintains the circulation of the blood.
Heart definition: Organ with cavitated organ parts, which is connected to the systemic and pulmonary arterial and venous trees. Examples: There is only one heart.
heart definition: hollow, muscular organ that maintains the circulation of the blood.
Heart definition: Organ with cavitated organ parts, which is continuous with the systemic and \npulmonary arterial and venous trees. Examples: There is only one heart.
HEART definition: A hollow muscular organ which receives the blood from the veins and propels it into the arteries. It is divided by a musculomembranous septum into two halves -- right or venous and left or arterial -- each of which consists of a receiving chamber (atrium) and an ejecting chamber (ventricle). (NCI)
Heart definition: A hollow organ located slightly to the left of the middle portion of the chest. It is composed of muscle and it is divided by a septum into two sides: the right side which receives de-oxygenated blood from the body and the left side which sends newly oxygenated blood to the body. Each side is composed of two chambers: the atrium (receiving blood) and ventricle (ejecting blood).
Heart Aneurysm definition: A localized bulging or dilatation in the muscle wall of a heart (MYOCARDIUM), usually in the LEFT VENTRICLE. Blood-filled aneurysms are dangerous because they may burst. Fibrous aneurysms interfere with the heart function through the loss of contractility. True aneurysm is bound by the vessel wall or cardiac wall. False aneurysms are HEMATOMA caused by myocardial rupture.
heart aneurysm definition: aneurysmal dilatation of a portion of the wall of the ventricle, usually the left, or, rarely, a saccular protrusion through it (false aneurysm of the heart); usually consequent to myocardial infarction but other causes such as bacterial endocarditis or trauma have been described.
Heart Arrest definition: Cessation of heart beat or MYOCARDIAL CONTRACTION. If it is treated within a few minutes, heart arrest can be reversed in most cases to normal cardiac rhythm and effective circulation.
heart arrest definition: cessation of the heart beat.
Cardiac Arrest definition: Cardiac standstill or arrest; absence of a heartbeat.
Cardiac Arrest definition: Sudden cessation of the pumping function of the heart, with disappearance of arterial blood pressure, connoting either ventricular fibrillation or ventricular standstill.
Cardiac Arrest definition: Sudden cessation of the pumping function of the heart, with disappearance of arterial blood pressure, connoting either ventricular fibrillation or ventricular standstill.
atrium definition: upper right or left chambers of the heart.
Atrium definition: General anatomical term which refers to a chamber or cavity to which are connected one or more chambers or passageways. Examples: right atrium of heart, atrium of middle nasal meatus, atrium of tympanic cavity, atrium of alveolus.
Cardiac atrium definition: Cardiac chamber which consists of a wall that surrounds the cavity of an atrium.
Heart Atria definition: The chambers of the heart, to which the BLOOD returns from the circulation.
Atrial definition: Of or relating to a cavity or chamber in the body, especially one of the upper chambers of the heart.
Cardiac Atrium definition: The paired upper chambers of the heart. The left atrium receives oxygenated blood from the pulmonary vein and pumps blood into the left ventricle. The right atrium receives venous deoxygenated blood from the entire body via the superior and inferior vena cavae and pumps blood into the right ventricle.
Heart Auscultation definition: Act of listening for sounds within the heart.
Heart Catheterization definition: Procedure which includes placement of catheter, recording of intracardiac and intravascular pressure, obtaining blood samples for chemical analysis, and cardiac output measurement, etc. Specific angiographic injection techniques are also involved.
heart catheterization definition: procedure which includes insertion of a tubular device into the heart for recording of intracardiac and intravascular pressure, obtaining blood samples for chemical analysis, and cardiac output measurement, injecting or withdrawing fluids, etc.
Cardiac Catheterization definition: A procedure in which a thin plastic tube (catheter) is inserted into an artery or vein in the arm or leg and then advanced into the chambers of the heart or into the coronary arteries. Catheterization can measure blood pressure within the heart and how much oxygen is in the blood. It's also used to get information about the pumping ability of the heart muscle. Catheters are also used to inject dye into the coronary arteries. Catheters with a balloon on the tip are used in the procedure called percutaneous transluminal coronary angioplasty.
Heart Defects, Congenital definition: Developmental abnormalities involving structures of the heart. These defects are present at birth but may be discovered later in life.
Heart Diseases definition: Pathological conditions involving the HEART including its structural and functional abnormalities.
heart disorder definition: impairment of health or a condition of abnormal functioning of the heart.
CARDIAC DISORDERS definition: Any deviation from the normal structure or function of the cardiac system that is manifested by a characteristic set of symptoms and signs. (NCI)
Heart Disorder definition: Any deviation from the normal structure or function of the cardiac system that is manifested by a characteristic set of symptoms and signs.
Cardiomegaly definition: Enlargement of the HEART, usually indicated by a cardiothoracic ratio above 0.50. Heart enlargement may involve the right, the left, or both HEART VENTRICLES or HEART ATRIA. Cardiomegaly is a nonspecific symptom seen in patients with chronic systolic heart failure (HEART FAILURE) or several forms of CARDIOMYOPATHIES.
heart enlargement definition: hypertrophy or enlargement of the heart.
Cardiomegaly definition: Abnormal enlargement of the heart.
heart failure definition: inability of the heart to pump blood at an adequate rate to fill tissue metabolic requirements or the ability to do so only at an elevated filling pressure.
Heart Failure definition: Inability of the heart to pump blood at an adequate rate to fill tissue metabolic requirements or the ability to do so only at an elevated filling pressure.
Heart Failure definition: Inability of the heart to pump blood at an adequate rate to meet tissue metabolic requirements or the ability to do so only at an elevated filling pressure.
Heart Failure definition: A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. Heart failure can be caused by structural defects, functional abnormalities (VENTRICULAR DYSFUNCTION), or a sudden overload beyond its capacity. Chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as MYOCARDIAL INFARCTION.
Myocardial Contraction definition: Contractile activity of the MYOCARDIUM.
heart contraction definition: contractile activity of the myocardium.
heart contraction definition: The multicellular organismal process by which the heart decreases in volume in a characteristic way to propel blood through the body. [GOC:dph]
Cardiac Care definition: Actions performed to control changes in the heart or blood vessels.
cardiac care definition: Activities that promote cardiac or circulatory function such as energy conservation and fluid balance.
Catheter Ablation definition: Removal of tissue with electrical current delivered via electrodes positioned at the distal end of a catheter. Energy sources are commonly direct current (DC-shock) or alternating current at radiofrequencies (usually 750 kHz). The technique is used most often to ablate the AV junction and/or accessory pathways in order to interrupt AV conduction and produce AV block in the treatment of various tachyarrhythmias.
BOARD, CARDIOPULMONARY definition: A cardiopulmonary resuscitation board is a device consisting of a rigid board which is placed under a patient to act as a support during cardiopulmonary resuscitation.
Boards, Cardiac Resuscitation definition: Boards designed to be placed under a patient to offer back support to chest compression applied during cardiopulmonary resuscitation. These boards are typically kept attached to or near beds and stretchers for use during sudden and unexpected cardiac arrest.
Catheters, Cardiac definition: Catheters designed for insertion into the vascular system that are long enough to advance and locate their distal tip in the heart and/or the pulmonary or coronary arteries. These catheters usually include distal tips that may be tapered and curved proximal ends bonded to hubs or connecting devices. The distal tips can be modified by attaching balloons or sensing devices or by placing holes for injection of contrast medium. Vascular catheters may be stiff or flexible and ideally would be nonthrombogenic, strong, flexible, and biocompatible, and they must retain their preshaped tip configuration (i.e., have memory) while permitting torque control. Most cardiac catheters are made of polymers (e.g., silicone elastomer, polyurethane) and may also include metals (e.g., stainless steel). Cardiac catheters are used in therapeutic (e.g., ablation, valvuloplasty) and diagnostic (e.g., angiography, cardiac output measurement) procedures.
CARDIAC COMPONENT definition: Cluster of elements that involve the heart and blood vessels.
Biopsy of Heart definition: Removal of tissue from the heart for microscopic examination.
Atrial Appendage definition: Ear-shaped appendage of either atrium of the heart. (Dorland, 28th ed)
Myocardial Contusion definition: A bruise to the heart.
Myocardial Contusion definition: A bruise to the heart.
Cardiac Death definition: The cessation of life due to heart abnormalities or disease.
Cardiac Electrophysiology definition: The study of the electrical activity and characteristics of the HEART; MYOCARDIUM; and CARDIOMYOCYTES.
Cardiac chamber definition: Organ chamber which consists of a wall that surrounds the cavity of a cardiac atrium or ventricle.
Cardiac Fibroma definition: A rare benign heart neoplasm usually occurring in young children. It is characterized by the presence of bland spindle cells and collagenous stroma formation. Clinical presentation may include cardiac arrhythmia, cyanosis, heart failure or sudden death.
regulation of heart contraction definition: Any process that modulates the frequency, rate or extent of heart contraction. Heart contraction is the process by which the heart decreases in volume in a characteristic way to propel blood through the body. [GOC:dph, GOC:go_curators, GOC:tb]
regulation of heart rate definition: Any process that modulates the frequency or rate of heart contraction. [GOC:dph, GOC:tb, PMID:10358008]
Cardiac Fibrosarcoma definition: A usually aggressive malignant neoplasm arising from the heart. It is characterized by the presence of spindle-shaped fibroblasts and collagenous stroma formation in a herringbone growth pattern.
cardiac definition: Having to do with the heart.
Chronotropism, Cardiac definition: Modulation of HEART RATE.
Cardiac endomysium definition: Reticular tissue which surrounds a cardiac myocyte.
Commotio Cordis definition: A sudden CARDIAC ARRHYTHMIA (e.g., VENTRICULAR FIBRILLATION) caused by a blunt, non-penetrating impact to the precordial region of chest wall. Commotio cordis often results in sudden death without prompt cardiopulmonary defibrillation.
 
 
itItalian
cardiaco definition: [1] Medizin: kardial: das Herz betreffend
 
frFrench
cordial definition: Boisson propre à ranimer le fonctionnement du cœur.
cardiaque definition: Celui ou celle qui a une maladie de cœur.
cardiaque definition: Remède '''cardiaque'''