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The aim of the study is to evaluate the ability of a new FDA-approved non-invasive Electrical Velocimetry (EV) cardiac monitor called AESCULON (Cardiotronic Inc, La Jolla CA) to detect and trend hemodynamic changes in hospitalized ambulatory pediatric patients during recovery from acute illness. We postulate that if the cardiac monitor can trend hemodynamic changes in hypertensive patients whose mean arterial pressure (MAP) decreases to normal levels, or hypotensive patients whose MAP increases to normal levels over several days, it may improve our understanding of different disease processes and allow us to improve care. We also seek to establish normative data for different measures provided by the AESCULON monitor - specifically cardiac output (CO) and systemic vascular resistance (SVR), which are the prime determinants of MAP.
Observational Model: Cohort, Time Perspective: Prospective
Children's Hospital Boston
Children's Hospital Boston
Published on BioPortfolio: 2014-07-24T14:10:38-0400
Cardiac output, the amount of blood pumped by the heart in one minute, will be measured in pediatric patients undergoing surgery involving cardiopulmonary bypass (CPB). Cardiac output will...
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To review the different methods available for the assessment of cardiac output (CO) and describe their specific indications in intensive care and perioperative medicine.
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A state of elevated cardiac output due to conditions of either increased hemodynamic demand or reduced cardiac oxygen output. These conditions may include ANEMIA; ARTERIOVENOUS FISTULA; THYROTOXICOSIS; PREGNANCY; EXERCISE; FEVER; and ANOXIA. In time, compensatory changes of the heart can lead to pathological form of high cardiac output and eventual HEART FAILURE.
A state of subnormal or depressed cardiac output at rest or during stress. It is a characteristic of CARDIOVASCULAR DISEASES, including congenital, valvular, rheumatic, hypertensive, coronary, and cardiomyopathic. The serious form of low cardiac output is characterized by marked reduction in STROKE VOLUME, and systemic vasoconstriction resulting in cold, pale, and sometimes cyanotic extremities.
A condition of fainting spells caused by heart block, often an atrioventricular block, that leads to BRADYCARDIA and drop in CARDIAC OUTPUT. When the cardiac output becomes too low, the patient faints (SYNCOPE). In some cases, the syncope attacks are transient and in others cases repetitive and persistent.
Compression of the heart by accumulated fluid (PERICARDIAL EFFUSION) or blood (HEMOPERICARDIUM) in the PERICARDIUM surrounding the heart. The affected cardiac functions and CARDIAC OUTPUT can range from minimal to total hemodynamic collapse.
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.
Cardiology is a specialty of internal medicine. Cardiac electrophysiology : Study of the electrical properties and conduction diseases of the heart. Echocardiography : The use of ultrasound to study the mechanical function/physics of the h...
Pediatrics is the general medicine of childhood. Because of the developmental processes (psychological and physical) of childhood, the involvement of parents, and the social management of conditions at home and at school, pediatrics is a specialty. With ...