(redirected from CMT)
Also found in: Dictionary, Thesaurus, Medical, Financial, Acronyms, Wikipedia.


see arrhythmiaarrhythmia
, disturbance in the rate or rhythm of the heartbeat. Various arrhythmias can be symptoms of serious heart disorders; however, they are usually of no medical significance except in the presence of additional symptoms.
..... Click the link for more information.



an increase in the frequency of cardiac contractions. In some cases it is not perceived subjectively; in others, it is accompanied by palpitations.

A distinction is made between sinus tachycardia, or the accelerated generation of impulses in the sinus node of the heart, and paroxysmal tachycardia. Sinus tachycardia, manifested by contractions generally ranging between 90 and 120 per minute, may be caused by such physiological factors as increased environmental temperature, physical and mental tension, or the ingestion of food. Sinus tachycardia may also be caused by such pathological states as fever, anemia, diffuse toxic goiter, heart failure, and neurasthenia. Nervous and humoral influences on the heart, such as adrenalin and thyroxine, are important contributing factors in the genesis of sinus tachycardia. The accelerated rhythm of cardiac contractions may have an unfavorable effect on metabolism in the myocardium and on blood circulation. When tachycardia is a symptom of disease, the underlying disease is treated.


Excessive rapidity of the heart's action.
References in periodicals archive ?
CONTACT: Amanda Murphy of CMT, +1-615-335-8408, amanda.
CMT Crossroads is the first outlet of this type for both partners.
Pharnext supports HNF's initiatives to raise the awareness around CMT and the expansion of the Global Registry for Inherited Neuropathies (GRIN).
GRIN is a major initiative that will enable organizations such as Pharnext to more easily bring sorely needed treatments to those with hereditary neuropathies such as CMT thereby furthering HNF's mission of raising awareness," said Sean Ekins, CSO, HNF.
8220;Bringing the CMT Program to investment professionals around the globe is a goal that I, along with the Board of Directors and executive staff, will be pursuing earnestly in the years ahead.
Though it has been Kristen Bell's third time to host the CMT Music Awards, the 2014 awards show was Bell's first time to go solo.
Although CMT achieved some early successes, it soon faced several unanticipated difficulties.
A CMT knows that the HVAC company is a sub that doesn't get paid for waiting and that they'll walk off the site unless they get an answer in minutes.
CMT Blues is housed at the Maximum Security Richard J.
Recently, CMT and Brazil's TV Abril (TVA) signed a long-term agreement granting TVA the right to distribute CMT to its owned and managed cable and MMDS systems as well as to TVA affiliates in cable and MMDS throughout the country.
The CMT legislation was released on December 8, 1993, and incorporates changes brought about as a result of public consultations.