Death, Sudden: The abrupt cessation of all vital bodily functions, manifested by the permanent loss of total cerebral, respiratory, and cardiovascular functions.Death, Sudden, Cardiac: Unexpected rapid natural death due to cardiovascular collapse within one hour of initial symptoms. It is usually caused by the worsening of existing heart diseases. The sudden onset of symptoms, such as CHEST PAIN and CARDIAC ARRHYTHMIAS, particularly VENTRICULAR TACHYCARDIA, can lead to the loss of consciousness and cardiac arrest followed by biological death. (from Braunwald's Heart Disease: A Textbook of Cardiovascular Medicine, 7th ed., 2005)Sudden Infant Death: The abrupt and unexplained death of an apparently healthy infant under one year of age, remaining unexplained after a thorough case investigation, including performance of a complete autopsy, examination of the death scene, and review of the clinical history. (Pediatr Pathol 1991 Sep-Oct;11(5):677-84)Arrhythmias, Cardiac: 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.Tachycardia, Ventricular: An abnormally rapid ventricular rhythm usually in excess of 150 beats per minute. It is generated within the ventricle below the BUNDLE OF HIS, either as autonomic impulse formation or reentrant impulse conduction. Depending on the etiology, onset of ventricular tachycardia can be paroxysmal (sudden) or nonparoxysmal, its wide QRS complexes can be uniform or polymorphic, and the ventricular beating may be independent of the atrial beating (AV dissociation).Ventricular Fibrillation: A potentially lethal cardiac arrhythmia that is characterized by uncoordinated extremely rapid firing of electrical impulses (400-600/min) in HEART VENTRICLES. Such asynchronous ventricular quivering or fibrillation prevents any effective cardiac output and results in unconsciousness (SYNCOPE). It is one of the major electrocardiographic patterns seen with CARDIAC ARREST.Defibrillators, Implantable: Implantable devices which continuously monitor the electrical activity of the heart and automatically detect and terminate ventricular tachycardia (TACHYCARDIA, VENTRICULAR) and VENTRICULAR FIBRILLATION. They consist of an impulse generator, batteries, and electrodes.Autopsy: Postmortem examination of the body.Prone Position: The posture of an individual lying face down.Long QT Syndrome: A condition that is characterized by episodes of fainting (SYNCOPE) and varying degree of ventricular arrhythmia as indicated by the prolonged QT interval. The inherited forms are caused by mutation of genes encoding cardiac ion channel proteins. The two major forms are ROMANO-WARD SYNDROME and JERVELL-LANGE NIELSEN SYNDROME.Cardiomyopathy, Hypertrophic: A form of CARDIAC MUSCLE disease, characterized by left and/or right ventricular hypertrophy (HYPERTROPHY, LEFT VENTRICULAR; HYPERTROPHY, RIGHT VENTRICULAR), frequent asymmetrical involvement of the HEART SEPTUM, and normal or reduced left ventricular volume. Risk factors include HYPERTENSION; AORTIC STENOSIS; and gene MUTATION; (FAMILIAL HYPERTROPHIC CARDIOMYOPATHY).Risk Factors: An aspect of personal behavior or lifestyle, environmental exposure, or inborn or inherited characteristic, which, on the basis of epidemiologic evidence, is known to be associated with a health-related condition considered important to prevent.Syncope: A transient loss of consciousness and postural tone caused by diminished blood flow to the brain (i.e., BRAIN ISCHEMIA). Presyncope refers to the sensation of lightheadedness and loss of strength that precedes a syncopal event or accompanies an incomplete syncope. (From Adams et al., Principles of Neurology, 6th ed, pp367-9)Forensic Pathology: The application of pathology to questions of law.Heart Arrest: 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.Brugada Syndrome: An autosomal dominant defect of cardiac conduction that is characterized by an abnormal ST-segment in leads V1-V3 on the ELECTROCARDIOGRAM resembling a right BUNDLE-BRANCH BLOCK; high risk of VENTRICULAR TACHYCARDIA; or VENTRICULAR FIBRILLATION; SYNCOPAL EPISODE; and possible sudden death. This syndrome is linked to mutations of gene encoding the cardiac SODIUM CHANNEL alpha subunit.Electrocardiography, Ambulatory: Method in which prolonged electrocardiographic recordings are made on a portable tape recorder (Holter-type system) or solid-state device ("real-time" system), while the patient undergoes normal daily activities. It is useful in the diagnosis and management of intermittent cardiac arrhythmias and transient myocardial ischemia.Anti-Arrhythmia Agents: 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.Cause of Death: Factors which produce cessation of all vital bodily functions. They can be analyzed from an epidemiologic viewpoint.NAV1.5 Voltage-Gated Sodium Channel: A voltage-gated sodium channel subtype that mediates the sodium ion PERMEABILITY of CARDIOMYOCYTES. Defects in the SCN5A gene, which codes for the alpha subunit of this sodium channel, are associated with a variety of CARDIAC DISEASES that result from loss of sodium channel function.Heart Conduction System: An impulse-conducting system composed of modified cardiac muscle, having the power of spontaneous rhythmicity and conduction more highly developed than the rest of the heart.Asphyxia: A pathological condition caused by lack of oxygen, manifested in impending or actual cessation of life.Cardiomyopathies: A group of diseases in which the dominant feature is the involvement of the CARDIAC MUSCLE itself. Cardiomyopathies are classified according to their predominant pathophysiological features (DILATED CARDIOMYOPATHY; HYPERTROPHIC CARDIOMYOPATHY; RESTRICTIVE CARDIOMYOPATHY) or their etiological/pathological factors (CARDIOMYOPATHY, ALCOHOLIC; ENDOCARDIAL FIBROELASTOSIS).Coronary Vessel Anomalies: Malformations of CORONARY VESSELS, either arteries or veins. Included are anomalous origins of coronary arteries; ARTERIOVENOUS FISTULA; CORONARY ANEURYSM; MYOCARDIAL BRIDGING; and others.Infant, Newborn: An infant during the first month after birth.Arrhythmogenic Right Ventricular Dysplasia: A congenital cardiomyopathy that is characterized by infiltration of adipose and fibrous tissue into the RIGHT VENTRICLE wall and loss of myocardial cells. Primary injuries usually are at the free wall of right ventricular and right atria resulting in ventricular and supraventricular arrhythmias.Time Factors: Elements of limited time intervals, contributing to particular results or situations.Follow-Up Studies: Studies in which individuals or populations are followed to assess the outcome of exposures, procedures, or effects of a characteristic, e.g., occurrence of disease.Beds: Equipment on which one may lie and sleep, especially as used to care for the hospital patient.KCNQ1 Potassium Channel: A voltage-gated potassium channel that is expressed primarily in the HEART.Fatal Outcome: Death resulting from the presence of a disease in an individual, as shown by a single case report or a limited number of patients. This should be differentiated from DEATH, the physiological cessation of life and from MORTALITY, an epidemiological or statistical concept.Heart Rate: The number of times the HEART VENTRICLES contract per unit of time, usually per minute.Myocardial Infarction: NECROSIS of the MYOCARDIUM caused by an obstruction of the blood supply to the heart (CORONARY CIRCULATION).Ajmaline: An alkaloid found in the root of RAUWOLFIA SERPENTINA, among other plant sources. It is a class Ia antiarrhythmic agent that apparently acts by changing the shape and threshold of cardiac action potentials.Sports: Activities or games, usually involving physical effort or skill. Reasons for engagement in sports include pleasure, competition, and/or financial reward.Electric Countershock: An electrical current applied to the HEART to terminate a disturbance of its rhythm, ARRHYTHMIAS, CARDIAC. (Stedman, 25th ed)Infant Care: Care of infants in the home or institution.Prospective Studies: Observation of a population for a sufficient number of persons over a sufficient number of years to generate incidence or mortality rates subsequent to the selection of the study group.Defibrillators: Cardiac electrical stimulators that apply brief high-voltage electroshocks to the HEART. These stimulators are used to restore normal rhythm and contractile function in hearts of patients who are experiencing VENTRICULAR FIBRILLATION or ventricular tachycardia (TACHYCARDIA, VENTRICULAR) that is not accompanied by a palpable PULSE. Some defibrillators may also be used to correct certain noncritical dysrhythmias (called synchronized defibrillation or CARDIOVERSION), using relatively low-level discharges synchronized to the patient's ECG waveform. (UMDNS, 2003)Heart Diseases: Pathological conditions involving the HEART including its structural and functional abnormalities.Syndrome: A characteristic symptom complex.Amiodarone: An antianginal and class III antiarrhythmic drug. It increases the duration of ventricular and atrial muscle action by inhibiting POTASSIUM CHANNELS and VOLTAGE-GATED SODIUM CHANNELS. There is a resulting decrease in heart rate and in vascular resistance.Risk Assessment: The qualitative or quantitative estimation of the likelihood of adverse effects that may result from exposure to specified health hazards or from the absence of beneficial influences. (Last, Dictionary of Epidemiology, 1988)Pacifiers: Devices that babies can suck on when they are not feeding. The extra sucking can be comforting to the babies and pacify them. Pacifiers usually are used as a substitute for the thumb in babies who suck on their thumb or fingers almost constantly.Ether-A-Go-Go Potassium Channels: A family of voltage-gated potassium channels that are characterized by long N-terminal and C-terminal intracellular tails. They are named from the Drosophila protein whose mutation causes abnormal leg shaking under ether anesthesia. Their activation kinetics are dependent on extracellular MAGNESIUM and PROTON concentration.Incidence: The number of new cases of a given disease during a given period in a specified population. It also is used for the rate at which new events occur in a defined population. It is differentiated from PREVALENCE, which refers to all cases, new or old, in the population at a given time.Retrospective Studies: Studies used to test etiologic hypotheses in which inferences about an exposure to putative causal factors are derived from data relating to characteristics of persons under study or to events or experiences in their past. The essential feature is that some of the persons under study have the disease or outcome of interest and their characteristics are compared with those of unaffected persons.Heart Failure: 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.Myocardium: The muscle tissue of the HEART. It is composed of striated, involuntary muscle cells (MYOCYTES, CARDIAC) connected to form the contractile pump to generate blood flow.Hearing Loss, Sensorineural: Hearing loss resulting from damage to the COCHLEA and the sensorineural elements which lie internally beyond the oval and round windows. These elements include the AUDITORY NERVE and its connections in the BRAINSTEM.Rupture, Spontaneous: Tear or break of an organ, vessel or other soft part of the body, occurring in the absence of external force.Bundle-Branch Block: A form of heart block in which the electrical stimulation of HEART VENTRICLES is interrupted at either one of the branches of BUNDLE OF HIS thus preventing the simultaneous depolarization of the two ventricles.Tachycardia: Abnormally rapid heartbeat, usually with a HEART RATE above 100 beats per minute for adults. Tachycardia accompanied by disturbance in the cardiac depolarization (cardiac arrhythmia) is called tachyarrhythmia.Bedding and Linens: Articles of cloth, usually cotton or rayon and other synthetic or cotton-blend fabrics, used in households, hospitals, physicians' examining rooms, nursing homes, etc., for sheets, pillow cases, toweling, gowns, drapes, and the like.Sleep: A readily reversible suspension of sensorimotor interaction with the environment, usually associated with recumbency and immobility.Cardiomyopathy, Dilated: A form of CARDIAC MUSCLE disease that is characterized by ventricular dilation, VENTRICULAR DYSFUNCTION, and HEART FAILURE. Risk factors include SMOKING; ALCOHOL DRINKING; HYPERTENSION; INFECTION; PREGNANCY; and mutations in the LMNA gene encoding LAMIN TYPE A, a NUCLEAR LAMINA protein.Autonomic Nervous System: The ENTERIC NERVOUS SYSTEM; PARASYMPATHETIC NERVOUS SYSTEM; and SYMPATHETIC NERVOUS SYSTEM taken together. Generally speaking, the autonomic nervous system regulates the internal environment during both peaceful activity and physical or emotional stress. Autonomic activity is controlled and integrated by the CENTRAL NERVOUS SYSTEM, especially the HYPOTHALAMUS and the SOLITARY NUCLEUS, which receive information relayed from VISCERAL AFFERENTS.Heart Block: Impaired conduction of cardiac impulse that can occur anywhere along the conduction pathway, such as between the SINOATRIAL NODE and the right atrium (SA block) or between atria and ventricles (AV block). Heart blocks can be classified by the duration, frequency, or completeness of conduction block. Reversibility depends on the degree of structural or functional defects.Coroners and Medical Examiners: Physicians appointed to investigate all cases of sudden or violent death.Predictive Value of Tests: In screening and diagnostic tests, the probability that a person with a positive test is a true positive (i.e., has the disease), is referred to as the predictive value of a positive test; whereas, the predictive value of a negative test is the probability that the person with a negative test does not have the disease. Predictive value is related to the sensitivity and specificity of the test.Case-Control Studies: Studies which start with the identification of persons with a disease of interest and a control (comparison, referent) group without the disease. The relationship of an attribute to the disease is examined by comparing diseased and non-diseased persons with regard to the frequency or levels of the attribute in each group.Cardiopulmonary Resuscitation: The artificial substitution of heart and lung action as indicated for HEART ARREST resulting from electric shock, DROWNING, respiratory arrest, or other causes. The two major components of cardiopulmonary resuscitation are artificial ventilation (RESPIRATION, ARTIFICIAL) and closed-chest CARDIAC MASSAGE.Romano-Ward Syndrome: A form of long QT syndrome that is without congenital deafness. It is caused by mutation of the KCNQ1 gene which encodes a protein in the VOLTAGE-GATED POTASSIUM CHANNEL.Treatment Outcome: Evaluation undertaken to assess the results or consequences of management and procedures used in combating disease in order to determine the efficacy, effectiveness, safety, and practicability of these interventions in individual cases or series.Ventricular Premature Complexes: A type of cardiac arrhythmia with premature contractions of the HEART VENTRICLES. It is characterized by the premature QRS complex on ECG that is of abnormal shape and great duration (generally >129 msec). It is the most common form of all cardiac arrhythmias. Premature ventricular complexes have no clinical significance except in concurrence with heart diseases.OregonApnea: A transient absence of spontaneous respiration.Cardiac Complexes, Premature: A group of cardiac arrhythmias in which the cardiac contractions are not initiated at the SINOATRIAL NODE. They include both atrial and ventricular premature beats, and are also known as extra or ectopic heartbeats. Their frequency is increased in heart diseases.Cardiac Pacing, Artificial: Regulation of the rate of contraction of the heart muscles by an artificial pacemaker.Risk: The probability that an event will occur. It encompasses a variety of measures of the probability of a generally unfavorable outcome.Epilepsy: A disorder characterized by recurrent episodes of paroxysmal brain dysfunction due to a sudden, disorderly, and excessive neuronal discharge. Epilepsy classification systems are generally based upon: (1) clinical features of the seizure episodes (e.g., motor seizure), (2) etiology (e.g., post-traumatic), (3) anatomic site of seizure origin (e.g., frontal lobe seizure), (4) tendency to spread to other structures in the brain, and (5) temporal patterns (e.g., nocturnal epilepsy). (From Adams et al., Principles of Neurology, 6th ed, p313)Electrophysiologic Techniques, Cardiac: Methods to induce and measure electrical activities at specific sites in the heart to diagnose and treat problems with the heart's electrical system.Heart Ventricles: The lower right and left chambers of the heart. The right ventricle pumps venous BLOOD into the LUNGS and the left ventricle pumps oxygenated blood into the systemic arterial circulation.Athletes: Individuals who have developed skills, physical stamina and strength or participants in SPORTS or other physical activities.Prognosis: A prediction of the probable outcome of a disease based on a individual's condition and the usual course of the disease as seen in similar situations.Coronary Disease: An imbalance between myocardial functional requirements and the capacity of the CORONARY VESSELS to supply sufficient blood flow. It is a form of MYOCARDIAL ISCHEMIA (insufficient blood supply to the heart muscle) caused by a decreased capacity of the coronary vessels.Heart: The hollow, muscular organ that maintains the circulation of the blood.Echocardiography: Ultrasonic recording of the size, motion, and composition of the heart and surrounding tissues. The standard approach is transthoracic.Adrenergic beta-Antagonists: Drugs that bind to but do not activate beta-adrenergic receptors thereby blocking the actions of beta-adrenergic agonists. Adrenergic beta-antagonists are used for treatment of hypertension, cardiac arrhythmias, angina pectoris, glaucoma, migraine headaches, and anxiety.Stroke Volume: The amount of BLOOD pumped out of the HEART per beat, not to be confused with cardiac output (volume/time). It is calculated as the difference between the end-diastolic volume and the end-systolic volume.Myocardial Ischemia: A disorder of cardiac function caused by insufficient blood flow to the muscle tissue of the heart. The decreased blood flow may be due to narrowing of the coronary arteries (CORONARY ARTERY DISEASE), to obstruction by a thrombus (CORONARY THROMBOSIS), or less commonly, to diffuse narrowing of arterioles and other small vessels within the heart. Severe interruption of the blood supply to the myocardial tissue may result in necrosis of cardiac muscle (MYOCARDIAL INFARCTION).Pedigree: The record of descent or ancestry, particularly of a particular condition or trait, indicating individual family members, their relationships, and their status with respect to the trait or condition.Cardiomyopathy, Hypertrophic, Familial: An autosomal dominant inherited form of HYPERTROPHIC CARDIOMYOPATHY. It results from any of more than 50 mutations involving genes encoding contractile proteins such as VENTRICULAR MYOSINS; cardiac TROPONIN T; ALPHA-TROPOMYOSIN.Mutation: Any detectable and heritable change in the genetic material that causes a change in the GENOTYPE and which is transmitted to daughter cells and to succeeding generations.Thoracic Injuries: General or unspecified injuries to the chest area.Supine Position: The posture of an individual lying face up.Death Certificates: Official records of individual deaths including the cause of death certified by a physician, and any other required identifying information.Sodium Channels: Ion channels that specifically allow the passage of SODIUM ions. A variety of specific sodium channel subtypes are involved in serving specialized functions such as neuronal signaling, CARDIAC MUSCLE contraction, and KIDNEY function.Tomography, X-Ray Computed: Tomography using x-ray transmission and a computer algorithm to reconstruct the image.Ventricular Dysfunction, Left: A condition in which the LEFT VENTRICLE of the heart was functionally impaired. This condition usually leads to HEART FAILURE; MYOCARDIAL INFARCTION; and other cardiovascular complications. Diagnosis is made by measuring the diminished ejection fraction and a depressed level of motility of the left ventricular wall.Age Factors: Age as a constituent element or influence contributing to the production of a result. It may be applicable to the cause or the effect of a circumstance. It is used with human or animal concepts but should be differentiated from AGING, a physiological process, and TIME FACTORS which refers only to the passage of time.Survival Analysis: A class of statistical procedures for estimating the survival function (function of time, starting with a population 100% well at a given time and providing the percentage of the population still well at later times). The survival analysis is then used for making inferences about the effects of treatments, prognostic factors, exposures, and other covariates on the function.Proportional Hazards Models: Statistical models used in survival analysis that assert that the effect of the study factors on the hazard rate in the study population is multiplicative and does not change over time.Potassium Channels, Voltage-Gated: Potassium channel whose permeability to ions is extremely sensitive to the transmembrane potential difference. The opening of these channels is induced by the membrane depolarization of the ACTION POTENTIAL.Cardiac Electrophysiology: The study of the electrical activity and characteristics of the HEART; MYOCARDIUM; and CARDIOMYOCYTES.Jervell-Lange Nielsen Syndrome: A form of long QT syndrome that is associated with congenital deafness. It is characterized by abnormal cardioelectrophysiology involving the VOLTAGE-GATED POTASSIUM CHANNEL. It results from mutation of KCNQ1 gene (Subtype 1 or JLN1) or the KCNE1 gene (Subtype 2 or JLN2).Autonomic Nervous System Diseases: Diseases of the parasympathetic or sympathetic divisions of the AUTONOMIC NERVOUS SYSTEM; which has components located in the CENTRAL NERVOUS SYSTEM and PERIPHERAL NERVOUS SYSTEM. Autonomic dysfunction may be associated with HYPOTHALAMIC DISEASES; BRAIN STEM disorders; SPINAL CORD DISEASES; and PERIPHERAL NERVOUS SYSTEM DISEASES. Manifestations include impairments of vegetative functions including the maintenance of BLOOD PRESSURE; HEART RATE; pupil function; SWEATING; REPRODUCTIVE AND URINARY PHYSIOLOGY; and DIGESTION.Bradycardia: Cardiac arrhythmias that are characterized by excessively slow HEART RATE, usually below 50 beats per minute in human adults. They can be classified broadly into SINOATRIAL NODE dysfunction and ATRIOVENTRICULAR BLOCK.Dogs: The domestic dog, Canis familiaris, comprising about 400 breeds, of the carnivore family CANIDAE. They are worldwide in distribution and live in association with people. (Walker's Mammals of the World, 5th ed, p1065)Tetralogy of Fallot: A combination of congenital heart defects consisting of four key features including VENTRICULAR SEPTAL DEFECTS; PULMONARY STENOSIS; RIGHT VENTRICULAR HYPERTROPHY; and a dextro-positioned AORTA. In this condition, blood from both ventricles (oxygen-rich and oxygen-poor) is pumped into the body often causing CYANOSIS.Magnetic Resonance Imaging: Non-invasive method of demonstrating internal anatomy based on the principle that atomic nuclei in a strong magnetic field absorb pulses of radiofrequency energy and emit them as radiowaves which can be reconstructed into computerized images. The concept includes proton spin tomographic techniques.Ventricular Dysfunction: A condition in which HEART VENTRICLES exhibit impaired function.Myocarditis: Inflammatory processes of the muscular walls of the heart (MYOCARDIUM) which result in injury to the cardiac muscle cells (MYOCYTES, CARDIAC). Manifestations range from subclinical to sudden death (DEATH, SUDDEN). Myocarditis in association with cardiac dysfunction is classified as inflammatory CARDIOMYOPATHY usually caused by INFECTION, autoimmune diseases, or responses to toxic substances. Myocarditis is also a common cause of DILATED CARDIOMYOPATHY and other cardiomyopathies.Cohort Studies: Studies in which subsets of a defined population are identified. These groups may or may not be exposed to factors hypothesized to influence the probability of the occurrence of a particular disease or other outcome. Cohorts are defined populations which, as a whole, are followed in an attempt to determine distinguishing subgroup characteristics.Pacemaker, Artificial: A device designed to stimulate, by electric impulses, contraction of the heart muscles. It may be temporary (external) or permanent (internal or internal-external).Hearing Loss, Unilateral: Partial or complete hearing loss in one ear.Bereavement: Refers to the whole process of grieving and mourning and is associated with a deep sense of loss and sadness.Mutation, Missense: A mutation in which a codon is mutated to one directing the incorporation of a different amino acid. This substitution may result in an inactive or unstable product. (From A Dictionary of Genetics, King & Stansfield, 5th ed)Resuscitation: The restoration to life or consciousness of one apparently dead. (Dorland, 27th ed)Hypertrophy, Left Ventricular: Enlargement of the LEFT VENTRICLE of the heart. This increase in ventricular mass is attributed to sustained abnormal pressure or volume loads and is a contributor to cardiovascular morbidity and mortality.Ryanodine Receptor Calcium Release Channel: A tetrameric calcium release channel in the SARCOPLASMIC RETICULUM membrane of SMOOTH MUSCLE CELLS, acting oppositely to SARCOPLASMIC RETICULUM CALCIUM-TRANSPORTING ATPASES. It is important in skeletal and cardiac excitation-contraction coupling and studied by using RYANODINE. Abnormalities are implicated in CARDIAC ARRHYTHMIAS and MUSCULAR DISEASES.Labyrinth Diseases: Pathological processes of the inner ear (LABYRINTH) which contains the essential apparatus of hearing (COCHLEA) and balance (SEMICIRCULAR CANALS).Vertigo: An illusion of movement, either of the external world revolving around the individual or of the individual revolving in space. Vertigo may be associated with disorders of the inner ear (EAR, INNER); VESTIBULAR NERVE; BRAINSTEM; or CEREBRAL CORTEX. Lesions in the TEMPORAL LOBE and PARIETAL LOBE may be associated with FOCAL SEIZURES that may feature vertigo as an ictal manifestation. (From Adams et al., Principles of Neurology, 6th ed, pp300-1)Genetic Testing: Detection of a MUTATION; GENOTYPE; KARYOTYPE; or specific ALLELES associated with genetic traits, heritable diseases, or predisposition to a disease, or that may lead to the disease in descendants. It includes prenatal genetic testing.United StatesMyocardial Bridging: A malformation that is characterized by a muscle bridge over a segment of the CORONARY ARTERIES. Systolic contractions of the muscle bridge can lead to narrowing of coronary artery; coronary compression; MYOCARDIAL ISCHEMIA; MYOCARDIAL INFARCTION; and SUDDEN CARDIAC DEATH.Coronary Artery Disease: Pathological processes of CORONARY ARTERIES that may derive from a congenital abnormality, atherosclerotic, or non-atherosclerotic cause.KCNQ Potassium Channels: A family of delayed rectifier voltage-gated potassium channels that share homology with their founding member, KCNQ1 PROTEIN. KCNQ potassium channels have been implicated in a variety of diseases including LONG QT SYNDROME; DEAFNESS; and EPILEPSY.Torsades de Pointes: A malignant form of polymorphic ventricular tachycardia that is characterized by HEART RATE between 200 and 250 beats per minute, and QRS complexes with changing amplitude and twisting of the points. The term also describes the syndrome of tachycardia with prolonged ventricular repolarization, long QT intervals exceeding 500 milliseconds or BRADYCARDIA. Torsades de pointes may be self-limited or may progress to VENTRICULAR FIBRILLATION.Survival Rate: The proportion of survivors in a group, e.g., of patients, studied and followed over a period, or the proportion of persons in a specified group alive at the beginning of a time interval who survive to the end of the interval. It is often studied using life table methods.Posture: The position or attitude of the body.Atrioventricular Block: Impaired impulse conduction from HEART ATRIA to HEART VENTRICLES. AV block can mean delayed or completely blocked impulse conduction.Acute Disease: Disease having a short and relatively severe course.Electrophysiology: The study of the generation and behavior of electrical charges in living organisms particularly the nervous system and the effects of electricity on living organisms.Audiometry, Pure-Tone: Measurement of hearing based on the use of pure tones of various frequencies and intensities as auditory stimuli.Retinal Artery Occlusion: Sudden ISCHEMIA in the RETINA due to blocked blood flow through the CENTRAL RETINAL ARTERY or its branches leading to sudden complete or partial loss of vision, respectively, in the eye.Phenotype: The outward appearance of the individual. It is the product of interactions between genes, and between the GENOTYPE and the environment.Hemothorax: Hemorrhage within the pleural cavity.Pre-Excitation Syndromes: A group of conditions in which HEART VENTRICLE activation by the atrial impulse is faster than the normal impulse conduction from the SINOATRIAL NODE. In these pre-excitation syndromes, atrial impulses often bypass the ATRIOVENTRICULAR NODE delay and travel via ACCESSORY CONDUCTING PATHWAYS connecting the atrium directly to the BUNDLE OF HIS.Myocytes, Cardiac: Striated muscle cells found in the heart. They are derived from cardiac myoblasts (MYOBLASTS, CARDIAC).Action Potentials: Abrupt changes in the membrane potential that sweep along the CELL MEMBRANE of excitable cells in response to excitation stimuli.Kaplan-Meier Estimate: A nonparametric method of compiling LIFE TABLES or survival tables. It combines calculated probabilities of survival and estimates to allow for observations occurring beyond a measurement threshold, which are assumed to occur randomly. Time intervals are defined as ending each time an event occurs and are therefore unequal. (From Last, A Dictionary of Epidemiology, 1995)Exercise Test: Controlled physical activity which is performed in order to allow assessment of physiological functions, particularly cardiovascular and pulmonary, but also aerobic capacity. Maximal (most intense) exercise is usually required but submaximal exercise is also used.Tymoviridae: A family of icosahedral, non-enveloped, RNA plant viruses comprised of three genera: TYMOVIRUS, Marafivirus and Maculavirus.Infant Mortality: Postnatal deaths from BIRTH to 365 days after birth in a given population. Postneonatal mortality represents deaths between 28 days and 365 days after birth (as defined by National Center for Health Statistics). Neonatal mortality represents deaths from birth to 27 days after birth.Atrioventricular Node: A small nodular mass of specialized muscle fibers located in the interatrial septum near the opening of the coronary sinus. It gives rise to the atrioventricular bundle of the conduction system of the heart.Blindness: The inability to see or the loss or absence of perception of visual stimuli. This condition may be the result of EYE DISEASES; OPTIC NERVE DISEASES; OPTIC CHIASM diseases; or BRAIN DISEASES affecting the VISUAL PATHWAYS or OCCIPITAL LOBE.Isolated Noncompaction of the Ventricular Myocardium: Rare congenital cardiomyopathies characterized by the lack of left ventricular myocardium compaction. The noncompaction results in numerous prominent trabeculations and a loose myocardial meshwork (spongy myocardium) in the LEFT VENTRICLE. Heterogeneous clinical features include diminished systolic function sometimes associated with left ventricular dilation, that presents either neonatally or progressively. Often, the RIGHT VENTRICLE is also affected. CONGESTIVE HEART FAILURE; PULMONARY EMBOLISM; and ventricular ARRHYTHMIA are commonly seen.Coronary Vessels: The veins and arteries of the HEART.JapanMultivariate Analysis: A set of techniques used when variation in several variables has to be studied simultaneously. In statistics, multivariate analysis is interpreted as any analytic method that allows simultaneous study of two or more dependent variables.Headache: The symptom of PAIN in the cranial region. It may be an isolated benign occurrence or manifestation of a wide variety of HEADACHE DISORDERS.Subarachnoid Hemorrhage: Bleeding into the intracranial or spinal SUBARACHNOID SPACE, most resulting from INTRACRANIAL ANEURYSM rupture. It can occur after traumatic injuries (SUBARACHNOID HEMORRHAGE, TRAUMATIC). Clinical features include HEADACHE; NAUSEA; VOMITING, nuchal rigidity, variable neurological deficits and reduced mental status.Channelopathies: A variety of neuromuscular conditions resulting from MUTATIONS in ION CHANNELS manifesting as episodes of EPILEPSY; HEADACHE DISORDERS; and DYSKINESIAS.Racquet Sports: Games in which players use a racquet to hit a ball or similar type object.Cardiomyopathy, Restrictive: A form of CARDIAC MUSCLE disease in which the ventricular walls are excessively rigid, impeding ventricular filling. It is marked by reduced diastolic volume of either or both ventricles but normal or nearly normal systolic function. It may be idiopathic or associated with other diseases (ENDOMYOCARDIAL FIBROSIS or AMYLOIDOSIS) causing interstitial fibrosis.
Ischemic optic neuropathy
Central retinal artery occlusion
List of atheists in science and technology
RON can present with transient visual loss followed by acute painless visual loss in one or both eyes several weeks later. The ... Symptoms of optic neuritis in the affected eye include pain on eye movement, sudden loss of vision, and decrease in color ... NAION presents as a painless loss of vision, often when awakening, that occurs over hours to days. Most patients lose the lower ... These diseases often cause sudden rapid visual loss in one eye. Inflammatory diseases of the blood vessels, like giant cell ...
Pigmented villonodular synovitis
Signs and symptoms of pregnancy
It can be painless with slight physical changes. But the precursor tissue changes, can be noticed by the doctors. Early stage ... sudden tooth mobility without apparent cause, unusual oral bleeding or epitaxis and prolonged hoarseness. Late stage symptoms ... painless, five-minute examination by a trained medical or dental professional. Oral cancer is the sixteenth most common cancer ...
The sudden presentation may involve severe eye pain, blurred vision, mid-dilated pupil, redness of the eye, and nausea. Vision ... Play media Open-angle glaucoma is painless and does not have acute attacks, thus the lack of clear symptoms make screening via ... The onset of symptoms is sudden and causes pain and other symptoms that are noticeable; it is treated as a medical emergency. ... Loss of aqueous humor absorption leads to increased resistance and thus a chronic, painless buildup of pressure in the eye. In ...
Animals in Islam
Diseases of the foot
Onset can be sudden. Those affected often have a large thymus gland or develop a thymoma. Myasthenia gravis is an autoimmune ... main symptom in MG is painless weakness of specific muscles, not fatigue. The muscle weakness becomes progressively worse ... Plasmapheresis and high dose intravenous immunoglobulin may be used during sudden flares of the condition. If the breathing ...
With this in mind, Paul Zoll embarked on a mission to develop electrical methods to prevent sudden arrhythmic death. After ... "painless" chest surface pacing in 1982. The new devise launched a small company that grew to be known as the Zoll Medical ... Systematic review of the incidence of sudden death in the United States. JACC 2011; 57: 792-93 Zoll PM. Resuscitation of the ... Clin Cardiol 1986; 9: 131-35 Stafford Cohen M.D. Paul Zoll MD; The Pioneer Whose Discoveries Prevent Sudden Death. ISBN 978-0- ...
Severe cases can lead to passing out, abnormally low blood pressure, and sudden death. PE usually results from a blood clot in ... but are often painless because there is no lung infarction due to collateral circulation. The classic presentation for PE with ... Play media Symptoms of pulmonary embolism are typically sudden in onset and may include one or many of the following: dyspnea ( ... About 15% of all cases of sudden death are attributable to PE. On physical examination, the lungs are usually normal. ...
Paroxysmal exercise-induced dystonia
This is in contrast to PKD where the symptoms are brought about by sudden movements, and PNKD where the symptoms are ... This was observed in one patient who started experiencing painless dystonia after mild exercise following a concussion. More ... The term paroxysmal indicates that the episodes are sudden and short lived and usually unpredicted, and return to normal is ... Paroxysmal exercise-induced dystonia or PED is a rare neurological disorder characterized by sudden, transient, involuntary ...
Amoebic liver abscess
Causes of cancer pain
Respiratory system Cancer in the bronchial tree is usually painless, but ear and facial pain on one side of the head has been ... In breast, prostate or lung cancer, multiple myeloma and some other cancers, sudden onset limb or back pain may indicate ... Pleural carcinomatosis is normally painless. Invasion of soft tissue by a tumor can cause pain by inflammatory or mechanical ... Onset may be sudden but is usually progressive. Some patients improve and others deteriorate. Fitzgibbon, DR; Loeser, JD (2010 ...
Sudden hearing loss (Sensorineural) is often associated with it. They often appear late in the progression of the disease but ... Signs and symptoms of acute optic neuropathy include painless loss of vision which may affect either one or both eyes, reduced ... A rare form of ocular (eye) involvement in this syndrome is retinal vasculitis which presents with painless decrease of vision ... while posterior uveitis presents with painless decreased visual acuity and visual field floaters. ...
The incidence of brachycephaly in people has increased since the advent of sudden infant death syndrome recommendations for ... Brachycephaly can be corrected with a cranial remolding orthoses (helmet) which provide painless total contact over the ... Campaign.The Back to Sleep campaign began in 1994 as a way to educate about ways to reduce the risk for sudden infant death ...
Magnetic resonance imaging - Simple English Wikipedia, the free encyclopedia
Mitochondrial optic neuropathies
Patients may report either a sudden loss of vision in both eyes, in the setting of an acute intoxication, or an insidious ... Loss of vision is usually bilateral, painless, chronic, insidious and slowly progressive. Most often, they present as a non- ... The generalized, common presentation for this broad and inclusive group of diseases is painless, bilateral loss of visual ...
Premature rupture of membranes
Most women will experience a painless leakage of fluid out of the vagina. They may notice either a distinct "gush" or a steady ... History: a person with PROM typically recalls a sudden gush of fluid loss from the vagina, or steady loss of small amounts of ... Women with PROM usually experience a painless gush of fluid leaking out from the vagina, but sometimes a slow steady leakage ...
Growth hormone therapy
Nearly painless insulin syringes make this less trying than is usually anticipated, but perceived discomfort is a subjective ... including sudden death. A follow-up sleep study after one year of GH treatment may also be indicated. GH (specifically Pfizer's ... Although the injections are painless, many of them had been happy to leave injections behind as they reached final heights in ...
Atypical facial pain
Neuralgia refers to pain in the distribution of a nerve (or nerves), and commonly implies paroxysmal (sudden) pain, although ... and even then this continues to be painless in some cases. When pain does occur, it is variable in severity, and may be ... Classic trigeminal neuralgia refers to sudden, shooting pain in the face, which is usually short lived and brought on by ...
Acute infectious thyroiditis
Sudden hearing loss (Sensorineural) is often associated with it. They often appear late in the progression of the disease ... Signs and symptoms of acute optic neuropathy include painless loss of vision which may affect either one or both eyes, reduced ... A rare form of ocular (eye) involvement in this syndrome is retinal vasculitis which presents with painless decrease of vision ... while posterior uveitis presents with painless decreased visual acuity and visual field floaters. ...
Although the Back to Sleep campaign promotes infants sleeping on their backs to avoid sudden infant death syndrome during sleep ... Microcurrent therapy is completely painless and children can only feel the probe from the machine on their skin. ... Other alterations to the muscle tissue arise from repetitive microtrauma within the womb or a sudden change in the calcium ...
List of M*A*S*H characters
In the series finale, following the sudden death of the Chinese POWs he has been teaching a work by Mozart, Winchester states ... Afterwards, Mulcahy reluctantly helps the doctors to stage the famous "Last Supper" faux suicide, to convince Painless that he ... It is Mulcahy who alerts the doctors that the camp dentist "Painless" is severely depressed. ...
Rotator cuff tear
After a full, painless range of motion is achieved, the patient may advance to a gentle strengthening program. Rockwood ... In the case of a tendon with pre-existing degeneration, the force may be surprisingly modest, such as a sudden lift, ... Acute, as a result of a sudden, powerful movement which might include falling onto an outstretched hand at speed, making a ... In some studies, patients who received earlier and more aggressive therapy reported reduced shoulder pain, less stiffness and ...
Economic history of the German reunification
Piracy in the Atlantic World
Periodontal pain is frequently localized to a particular tooth, which is made much worse by biting on the tooth, sudden in ... Common marginal gingivitis in response to subgingival plaque is usually a painless condition. However, an acute form of ... Consequently, pathologic processes involving only enamel, such as shallow cavities or cracks, tend to be painless. Dentin ...
All of a sudden Merezhkovsky found that his debut novel was to be published in Severny Vestnik after all. What he didn't ... and joining the Maxim Gorky-led Movement of the patriotic left calling for Russia's withdrawal from the War in the painless ... All of a sudden Merezhkovsky, a prolific writer again, drifted into the focus of the Nobel Prize committee attention. From 1930 ...
Sudden Infant Death Syndrome, Information about Sudden Infant Death Syndrome
Central Retinal Artery Occlusion - JOMTonline.com
Can a Heart Attack Be Painless? Sudden Heart Attack after Healthy habits
Can a Heart Attack Be Painless? Each year, over 700,000 Americans will experience a heart attack. Roughly 500,000 of them will ... Sudden Heart Attack by Following Healthy Diet. Thiruvenkatam C March 12, 2015 Health Tips 2,365 Views ... Can a Heart Attack Be Painless?. Image Credits to Pixabay.com. A healthy heart paves way for healthy living. Moreover, you must ... It is necessary to lower the cholesterol level to prevent yourself from sudden heart attack. Heart attack might come in any age ...
Physical Diagnosis Final Exam Study Guide
Dissecting Aneurysm: Sudden, severe tearing pain, radiating to the abdomen, neck, or back, depending on where the aneurysm is ... Amaurosis Fugax: Transient, painless loss of vision in one eye, due to ischemic changes in retina. Usually due to carotid ... PAROXYSMAL NOCTURNAL DYSPNEA (PND): Similar to orthopnea, except it has sudden onset and occurs only after the patient has been ... Painless Hematuria: Think neoplasms (renal or bladder), renal tuberculosis, acute glomerulo-nephritis. ...
Healing Your Grieving Heart Journal for Teens by Alan D. Wolfelt, Megan E. Wolfelt |, Paperback | Barnes & Noble®
For example, was the death anticipated or was it sudden and unexpected? How old was the person who died? Was the death painful ... or painless? Do you feel like you should have been able to do something to prevent the death? Even when you know someone is ... Was the death something you expected to happen or was it sudden and unexpected? How does this affect your grief? ...
An eye stroke is usually painless. A sudden change in a persons vision or loss of vision in one eye is often the first symptom ... Sudden vision loss is a medical emergency.. To diagnose an eye stroke, doctors may have to perform tests to see the retina of ... A sudden change in vision or vision loss may be a symptom of an eye stroke. ... A cerebral stroke, which affects blood flow to the brain, can also cause sudden vision loss or changes in vision. For this ...
Wiley: Medicine at a Glance, 3rd Edition - Patrick Davey
Hyperbaric oxygen therapy Results - Mayo Clinic
Pregnancy symptoms you should never ignore - BabyCentre UK
Carbo Vegetabilis throat symptoms - ABC Homeopathy
Painless Lump Under Armpit | Cancers Forum | Cancer | Medical Questions
Did you have sudden weight loss? Have you lost your appetite? Do you find your eyes sensitive to light and easily irritated? ... i am 21.i am really worried.i have a painless lump in my armpit.i am a student.. is there something to worry about? i found ... Four years later, I now have a lump which is currently situated under my right armpit and is painless, I can feel it but it ... Now my son is 9 months old and I am no longer breast feeding him for the past 4 months , I noticed another small painless lump ...
Vascular insufficiency is the most common cause of sudden painless unilateral loss of vision (Table 1).1,2,3 Retinal ischemia ... WE REPORT THE CASE OF A 50-year-old man who reported sudden, painless loss of vision in his left eye after starting ... Sudden painless visual loss: retinal causes. Clin Geriatr Med 1999;15:15-24. ... A 50-year-old man came to the emergency department with a 36-hour history of painless decreased vision in his left eye. He had ...
Retinal detachment - Symptoms and causes - Mayo Clinic
Retinal detachment itself is painless. But warning signs almost always appear before it occurs or has advanced, such as:. *The ... Warning signs of retinal detachment may include one or all of the following: the sudden appearance of floaters and flashes and ... sudden appearance of many floaters - tiny specks that seem to drift through your field of vision ...
Fire Fighter Fatality Investigation Report F2004-41 | CDC/NIOSH
Assistant Chief Suffers Sudden Heart Attack and Dies After Completing a Walk Test - Montana ... In the United States, CAD (atherosclerosis) is the most common risk factor for cardiac arrest and sudden cardiac death.3 Risk ... painless).6,9 The AC did not report episodes of chest pain during physical activity, while performing duties as a fire fighter ... The Deputy County Coroner pronounced the AC dead at the scene from a "sudden cardiac event" due to "acute coronary thrombosis ...
Penis veins sudden - New Doctor Insights
Krick on penis veins sudden: Do not delay. Seems to be an orchitis that could have different etiologies. One has to rule out an ... Legs covered in totally painless bruises. Very faint. In color. Im 23. Varicose veins??? ... What would cause several varicose veins to suddenly appear on legs? Also have sudden onset of patches of spider veins around ...
Iris Versicolor. - Hand Book of Materia Medica and Homoeopathic Therapeutics. - By T. F. Allen. - Presented by M di-T.
Papescent ; with rumbling in abdomen ; with pain in umbilical region ; painless, with rumbling ; yellow, painless, with ... Dizziness ; with pressure in forehead ; then lightness of head ; sudden ; sudden, when walking in-doors. ... Sudden rheumatic lameness in femoral region posteriorly in morning when exercising, causing limping, then shooting posteriorly ... Rumbling in umbilical region in afternoon ; R. in U. and hypogastric regions, with desire for stool, soft, painless stool ; R. ...
List of atheists in science and technology - Wikipedia
Sudden Blindness -- eCureMe.com
Blockage of Central Retinal Artery -- eCureMe.com
Sudden Blindness in one eye*Painless*Center of vision is affected*Parts other than center of vision can also be affected* ... will lead to painless, Sudden Blindness in one eye in the case of an arterial (arteries) occlusion, and more gradual loss of ... Retinal artery occlusion or sudden blindness; also see blockage of central retinal vein ...
Masturbation Benefits - 5 Ways Self-Touches Make Her Touches Even Better
Neuro and optho from Step Up Flashcards by Amanda Beach | Brainscape
Bryonia - ABC Homeopathy
True Learn. Basic. Flashcards by Landon Woolf | Brainscape
Hyperbaric Medicine | LDS Hospital
The Beauty of Medicine : Emergency Medicine News
Tic - definition of tic by The Free Dictionary
n. 1. A repetitive, rapid, sudden muscular movement or vocalization, usually experienced as involuntary or semivoluntary. 2. A ... a. a sudden, spasmodic, painless, involuntary muscular contraction, as of the face. ... Then a sudden burst of rapid, senseless speech persuaded him at once that he had to do with an escaped luna- tic. In fact, that ... 1. A repetitive, rapid, sudden muscular movement or vocalization, usually experienced as involuntary or semivoluntary. ...
Brissaud, Édouard - definition of Brissaud, Édouard by The Free Dictionary
n. 1. A repetitive, rapid, sudden muscular movement or vocalization, usually experienced as involuntary or semivoluntary. 2. A ... a. a sudden, spasmodic, painless, involuntary muscular contraction, as of the face. ... 1. A repetitive, rapid, sudden muscular movement or vocalization, usually experienced as involuntary or semivoluntary. ... twitch, twitching, vellication - a sudden muscle spasm; especially one caused by a nervous condition ...
Breast Cancer: Warning Signs | Newsmax.com
Ankle swelling and Head rash - Symptom Checker - check medical symptoms at RightDiagnosis
OcclusionSYMPTOMSLumpVaginalWarning signsAcute painlessRetinaInvoluntaryMuscle spasmMonocularCRAOWeaknessSevereBlindnessCauses a suddenPainOccurSymptomScrotalUnilateralIschemicBumpSyndromeNumbnessDiscolorationUsually suddenPatientsProcedureFlashesNECKVisualTypicallyExperience a suddenBloodVision loss in one eyeOpticStrokeInclude
- Blockage of the retinal (membrane in the back of the eye) artery (carries oxygen-rich blood to retina) or retinal vein (carries oxygen-poor blood from retina) will lead to painless, Sudden Blindness in one eye in the case of an arterial (arteries) occlusion, and more gradual loss of central vision in a venous (veins) occlusion. (ecureme.com)
- Retinal vein occlusion is one of the most common causes of sudden painless unilateral loss of vision. (bmj.com)
- The most common symptom of a retinal artery occlusion (RAO) is sudden, painless vision loss. (aao.org)
- The most common signs of retinal venous occlusion are a sudden and painless loss of vision, usually in one eye. (virginiamason.org)
- The primary symptom of retinal vein occlusion is a sudden painless change in vision. (sbwire.com)
- There is a sudden, painless decrease in vision although vision may be better than that of an arterial occlusion. (acponline.org)
- Symptoms of optic neuritis in the affected eye include pain on eye movement, sudden loss of vision, and decrease in color vision (especially reds). (wikipedia.org)
- Other signs and symptoms include a sudden onset of visual loss linked to the appearance of multiple lesions in the retina, livedo reticularis, erythema nodosum, and bilateral uveitis. (news-medical.net)
- AEP is characterized by a sudden, rapid onset of symptoms usually within 1-7 days. (rarediseases.org)
- The patient did not have any other symptoms except for the sudden swelling. (hindawi.com)
- Symptoms include a painless lump, often about the size of a pea. (drdonnica.com)
- If a stone moves into the ureter, it can cause sudden severe pain called renal colic . (medbroadcast.com)
- If a blood clot forms inside an external hemorrhoid, the pain can be sudden and severe. (harvard.edu)
- Sudden, severe headache with no known cause. (northoaks.org)
- Causes sudden, painless vision loss that can be mild to severe. (belmarrahealth.com)
Causes a sudden2
- Most people are familiar with the sudden pain of a muscle cramp. (faqs.org)
- When gallstones block the bile ducts of your biliary tract , the gallstones can cause sudden pain in your upper right abdomen . (nih.gov)
- A sudden stab of pain in the head has at times been reported. (sleepeducation.org)
- The patient may present with a sudden loss of vision, pain, watering and an inability to open the eye. (cehjournal.org)
- Pain or pressure - Can signal a problem with the eye, however, true eye strokes are often painless. (belmarrahealth.com)
- Most serious forms of vision loss are painless, and the absence of pain in no way diminishes the urgent need to get medical care. (medlineplus.gov)
- A sudden change in vision or vision loss may be a symptom of an eye stroke. (medicalnewstoday.com)
- A sudden change in a person's vision or loss of vision in one eye is often the first symptom of an eye stroke. (medicalnewstoday.com)
- A sudden blurring of vision is the primary symptom. (naturaleyecare.com)
- Posterior ischemic optic neuropathy is a syndrome of sudden visual loss with optic neuropathy without initial disc swelling with subsequent development of optic atrophy. (wikipedia.org)
- In other cases, vision loss may be sudden and dramatic, particularly related to those with the ischemic form of RVO. (naturaleyecare.com)
- A 7-year-old patient admitted to our clinic with a painless mass on the right side of the neck, which was 2 cm in diameter (Figure 1 ). (hindawi.com)
- Physical examination disclosed a soft, mobile, and painless mass on the right side of the neck. (hindawi.com)
- A 2 cm painless mass on the right side of the neck in a 7-year-old patient. (hindawi.com)