Holter monitor

Jump to navigation Jump to search

Template:Infobox laboratory equipment

WikiDoc Resources for Holter monitor

Articles

Most recent articles on Holter monitor

Most cited articles on Holter monitor

Review articles on Holter monitor

Articles on Holter monitor in N Eng J Med, Lancet, BMJ

Media

Powerpoint slides on Holter monitor

Images of Holter monitor

Photos of Holter monitor

Podcasts & MP3s on Holter monitor

Videos on Holter monitor

Evidence Based Medicine

Cochrane Collaboration on Holter monitor

Bandolier on Holter monitor

TRIP on Holter monitor

Clinical Trials

Ongoing Trials on Holter monitor at Clinical Trials.gov

Trial results on Holter monitor

Clinical Trials on Holter monitor at Google

Guidelines / Policies / Govt

US National Guidelines Clearinghouse on Holter monitor

NICE Guidance on Holter monitor

NHS PRODIGY Guidance

FDA on Holter monitor

CDC on Holter monitor

Books

Books on Holter monitor

News

Holter monitor in the news

Be alerted to news on Holter monitor

News trends on Holter monitor

Commentary

Blogs on Holter monitor

Definitions

Definitions of Holter monitor

Patient Resources / Community

Patient resources on Holter monitor

Discussion groups on Holter monitor

Patient Handouts on Holter monitor

Directions to Hospitals Treating Holter monitor

Risk calculators and risk factors for Holter monitor

Healthcare Provider Resources

Symptoms of Holter monitor

Causes & Risk Factors for Holter monitor

Diagnostic studies for Holter monitor

Treatment of Holter monitor

Continuing Medical Education (CME)

CME Programs on Holter monitor

International

Holter monitor en Espanol

Holter monitor en Francais

Business

Holter monitor in the Marketplace

Patents on Holter monitor

Experimental / Informatics

List of terms related to Holter monitor

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Holter monitor

In medicine, a Holter monitor (also called an ambulatory electrocardiography device), named after its inventor, Dr. Norman J. Holter, is a portable device for continuously monitoring the electrical activity of the heart for 24 hours or more. Its extended recording period is sometime useful for observing occasional cardiac arrhythmias that would be difficult to identify in a shorter period of time. For patients having more transient symptoms, a cardiac event monitor which can be worn for a month or more can be used.

Much like standard electrocardiography (ECG), the Holter monitor records electrical signals from the heart via a series of electrodes attached to the chest. The number and position of electrodes varies by model, but most Holter monitors employ from three to eight. These electrodes are connected to a small piece of equipment that is attached to the patient's belt, and is responsible for keeping a log of the heart's electrical activity throughout the recording period.

Old devices used to use reel to reel or a standard C60 or C90 audio cassette and ran at a very slow speed to record the data. More modern units record onto digital flash memory devices. The data are uploaded into a computer which then automatically analyzes the input, counting ECG complexes, calculating summary statistics such as average heart rate, minimum and maximum heart rate, and finding candidate areas in the recording worthy of further study by the technician.

Electrodes should be placed over bones to minimize artifacts from muscular activity.

Both 24 hr and 30 day event recorders are available.

Event diary

In addition to wearing the device, most patients are asked to keep a diary of activities such as running and sleeping, symptoms, and times that their symptoms occur. This information is used by doctors and technicians to rapidly pinpoint problem areas in the vast amount of data recorded during the monitoring period.

Gallery

A person carries a holter monitor in his pocket.

Resources

de:Langzeit-EKG sk:Holterovo monitorovanie


Template:WikiDoc Sources