electrocardiograph

(redirected from 12-lead ECG)
Also found in: Dictionary, Thesaurus, Encyclopedia.

electrocardiograph

 [e-lek″tro-kahr´de-o-graf″]
the apparatus used in electrocardiography.

e·lec·tro·car·di·o·graph

(ē-lek'trō-kar'dē-ō-graf), Do not confuse this word with electrocardiogram.
An instrument for recording the potential of the electrical currents that traverse the heart.

electrocardiograph

(ĭ-lĕk′trō-kär′dē-ə-grăf′)
n.
An instrument used in the detection and diagnosis of heart abnormalities that measures electrical potentials on the body surface and generates a record of the electrical currents associated with heart muscle activity. Also called cardiograph.

e·lec′tro·car′di·o·graph′ic (-grăf′ĭk) adj.
e·lec′tro·car′di·o·graph′i·cal·ly adv.
e·lec′tro·car′di·og′ra·phy (-kär′dē-ŏg′rə-fē) n.

electrocardiograph (ECG)

[-kär′dē·əgraf′]
a device used for recording the electrical activity of the myocardium to detect transmission of the cardiac impulse through the conductive tissues of the muscle. Electrocardiography allows diagnosis of specific cardiac abnormalities. Leads are affixed to certain anatomical points on the patient's chest, usually with an adhesive gel that promotes transmission of the electric impulse to the recording device. electrocardiographic, adj.

e·lec·tro·car·di·o·graph

(ĕ-lek'trō-kahr'dē-ō-graf)
An instrument for recording the potential of the electrical currents that traverse the heart.

electrocardiograph

An instrument consisting of a series of electrical cables (leads) with a lead-switching device, a high-gain, low-noise, balanced differential amplifier and a moving coil rotary transducer that converts the amplified signal into a varying trace on a calibrated strip of moving paper. The leads are connected to low-resistance contacts on the chest of the subject and the input to the device is derived from the minute electrical currents that flow towards and away from them as a result of the heart's contractions and relaxations.

Electrocardiograph (ECG, EKG)

A test of a patient's heartbeat that involves placing leads, or detectors, on the patient's chest to record electrical impulses in the heart. This test will produce a strip, or picture record of the heart's electrical functioning.

electrocardiograph

; 12-lead ECG instrument recording electrical activity of heart muscle

electrocardiograph

the apparatus used in electrocardiography.
Enlarge picture
Portable electrocardiograph used during exercise. By permission from Hinchcliff KW, Kaneps AJ, Equine Sports Medicine and Surgery, Saunders, 2004
References in periodicals archive ?
Washington, March 11 ( ANI ): Only about 30 percent of the incidence of cardiovascular sudden death were due to diseases that could be reliably detected by pre-participation screening, even with 12-lead ECGs, a research in a U.
The patients underwent: standard 12-lead ECG and SA-ECG in the Functional Exploration Laboratory of the Pathophysiology department of the "Victor Babes" University of Medicine and Pharmacy, using a Siemens Megacart electrocardiograph.
To obtain a standard 12-lead ECG, skin electrodes are placed on each of the four extremities (right and left wrist, right and left ankle) as limb leads (Einthoven, 1902).
We also agree that there are numerous characteristics of ventricular tachycardia easily applied to a resting 12-lead ECG (eg, QRS axis).
This joint guideline recommends that the diagnostic evaluation of a hemodynamically stable patient should begin with a clinical history, physical examination with relevant labs, and 12-lead ECG.
Performing a 12-lead ECG is traditionally taught in a laboratory setting and requires a high faculty-to-student ratio to allow for closely monitored practice.
The 12-lead ECG machines will replace the standard three-lead version in the Mersey service's 100 ambulances.
The 12-lead ECG machines will replace the standard three lead version in the Mersey service's 100 ambulances.
The decision to treat will be in the hands of a medical control physician at the hospital, who will have examined a 12-lead ECG obtained in the field and transmitted by paramedics.
Each patient underwent a complete history, physical examination, neurologic evaluation, standard blood tests, 12-lead ECG, and 24-hour electrocardiographic monitoring.
The study included 109 patients (70 sinus rhythm and 39 AF) who had single-lead ECGs recorded with the AliveCor Heart Monitor before a 12-lead ECG had been performed, in order to develop the optimized algorithm.