Biomaterial Database

AED (automatic external defibrillators) algorithms. The "shocking" truth. 1994

A Weigel, and R D White

Laerdal Medical Corp., Armonk, NY.

Automatic external defibrillators (AEDs) have proven to be successful tools against sudden cardiac death since the 1970s. They operate on a simple premise--using a device with a built-in algorithm in a computer chip to "read" a persons's electrocardiogram (ECG) and, if necessary, advise or deliver a shock to bring the person back to a normal rhythm. When first introduced, these devices used various methods of collecting ECG's and detecting ventricular fibrillation (v fib) and ventricular tachycardia (v tach), two treatable dysrhythmias.

UI	MeSH Term	Description	Entries
D004554	Electric Countershock	An electrical current applied to the HEART to terminate a CARDIAC ARRHYTHMIA.	Cardiac Electroversion,Cardioversion,Defibrillation, Electric,Electroversion, Cardiac,Electrical Cardioversion,Electroversion Therapy,Therapy, Electroversion,Cardiac Electroversions,Cardioversion, Electrical,Cardioversions,Cardioversions, Electrical,Countershock, Electric,Countershocks, Electric,Defibrillations, Electric,Electric Countershocks,Electric Defibrillation,Electric Defibrillations,Electrical Cardioversions,Electroversion Therapies,Electroversions, Cardiac,Therapies, Electroversion
D004632	Emergency Medical Services	Services specifically designed, staffed, and equipped for the emergency care of patients.	Emergency Care,Emergency Health Services,Emergicenters,Prehospital Emergency Care,Emergency Care, Prehospital,Emergency Services, Medical,Medical Services, Emergency,Services, Emergency Medical,Emergency Health Service,Emergency Medical Service,Emergency Service, Medical,Emergicenter,Health Service, Emergency,Health Services, Emergency,Medical Emergency Service,Medical Emergency Services,Medical Service, Emergency,Service, Emergency Health,Service, Emergency Medical,Service, Medical Emergency,Services, Emergency Health,Services, Medical Emergency
D004869	Equipment Safety	Freedom of equipment from actual or potential hazards.	Device Safety,Hazards, Equipment,Medical Device Safety,Safety, Equipment,Device Safety, Medical,Safety, Medical Device,Equipment Hazard,Equipment Hazards,Hazard, Equipment,Safety, Device
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000465	Algorithms	A procedure consisting of a sequence of algebraic formulas and/or logical steps to calculate or determine a given task.	Algorithm
D012680	Sensitivity and Specificity	Binary classification measures to assess test results. Sensitivity or recall rate is the proportion of true positives. Specificity is the probability of correctly determining the absence of a condition. (From Last, Dictionary of Epidemiology, 2d ed)	Specificity,Sensitivity,Specificity and Sensitivity
D014481	United States	A country in NORTH AMERICA between CANADA and MEXICO.
D017408	Guidelines as Topic	Works about a systematic statement of policy rules or principles. Guidelines may be developed by government agencies at any level, institutions, professional societies, governing boards, or by convening expert panels. For guidelines in the field of health care and clinical medicine, PRACTICE GUIDELINES AS TOPIC is available.	Guidelines as Topics