bradycardia

bradycardia
n.
slowing of the heart rate to less than 50 beats per minute. Sinus bradycardia is often found in healthy individuals, especially athletes, but it is also seen in some patients with reduced thyroid activity, jaundice, hypothermia, or vasovagal attacks. Bradycardia may also result from arrhythmias, especially complete heart block, when the slowing is often extreme and often causes loss of consciousness.

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  • bradycardia — [brad΄i kär′dē ə] n. [< BRADY + Gr kardia,HEART] abnormally slow heartbeat: below 60 beats per minute for an adult …   English World dictionary

  • Bradycardia — SignSymptom infobox Name = Bradycardia ICD10 = ICD10|R|00|1|r|00 ICD9 = ICD9|427.81, ICD9|659.7, ICD9|785.9, ICD9|779.81 Bradycardia, as applied to adult medicine, is defined as a resting heart rate of under 60 beats per minute, though it is… …   Wikipedia

  • bradycardia — bradycardic, adj. /brad i kahr dee euh/, n. Med. a slow heartbeat rate, usually less than 60 beats per minute. [1885 90; BRADY + CARDIA] * * * ▪ pathology       type of arrhythmia (abnormal heart rhythm) characterized by slowing of the heart rate …   Universalium

  • Bradycardia — A slow heart rate, usually defined as less than 60 beats per minute. The word bradycardia is logically derived from two Greek roots: bradys, slow + cardia, heart = slow heart. * * * Slowness of the heartbeat, usually defined (by convention) as a… …   Medical dictionary

  • bradycardia —    A distinctly slow heartbeat, which may be a normal idiosyncrasy or with causes ranging from regular strenuous exercise to abnormally slow heart stimulus to the side effects of medication. Bradycardia is usually defined as a pulse below sixty… …   Herbal-medical glossary

  • bradycardia-tachycardia syndrome — brady tachy syndrome a clinical manifestation of the sick sinus syndrome characterized by periods of atrial and ventricular bradycardia alternating with periods of rapid regular or irregular atrial or ventricular tachyarrhythmias …   Medical dictionary

  • bradycardia — noun Etymology: New Latin Date: circa 1890 relatively slow heart action compare tachycardia …   New Collegiate Dictionary

  • bradycardia — Condition in which the heart beats unusually slowly. Opposite of tachycardia …   Dictionary of molecular biology

  • bradycardia — noun The condition of having a slow heartbeat, defined as under 60 beats per minute for an adult. Syn: brachycardia …   Wiktionary

  • bradycardia — n. unusually slow heartbeat …   English contemporary dictionary

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