tachycardia

plural tachycardias

1. countableuncountablecardiologyA rapid resting heart rate, especially one above 100 beats per minute; palpitations.First known use 19th c.

   The heart becomes irritable, there is nervous palpitation, or attacks of paroxysmal tachycardia.

   1896 June, E[dwin] M. Hale, “The Heart at the Beginning and Ending of the Menstrual Life: Reprinted from the Hahnemannian Monthly, June, 1896”, in The Hahnemannian Monthly, Philadelphia, Pa.: Homœopathic Medical College of Pennsylvania, →OCLC, page 1

   5 more examples

   Tachycardias of all types reduce the cardiac output if the rate is high enough. […] The main difference between the tachycardias as regards the reduction of cardiac output is the rate at which they cause a significant reduction of cardiac output, and this depends on the type of tachycardia.

   1988, G.M. Woerlee, “Cardiac Arrhythmias – General”, in Common Perioperative Problems and the Anaesthetist (Developments in Critical Care Medicine and Anaesthesiology), Dordrecht: Kluwer Academic Publishers, →DOI, →ISBN, page 123

   Tachycardia is defined as a FHR [fetal heart rate] above 160 bpm that lasts for at least 10 minutes. Tachycardia represents increased sympathetic and decreased parasympathetic autonomic tone and, therefore, is generally associated with a normal loss of FHR baseline variability[…].

   2003, Rebecca L. Cypher, Donna Adelsperger, Keiko L. Torgersen, “Interpretation of Fetal Heart Rate Patterns”, in Nancy Feinstein, Keiko L. Torgersen, Jana Atterbury, editors, Fetal Heart Monitoring: Principles and Practices, 3rd edition, Dubuque, Iowa: Kendall Hunt, →ISBN, page 117

   With atrial tachycardia, the atria of the heart beats abnormally fast. Though often unpleasant for the patient, an atrial tachycardia is typically not fatal. However, some tachycardia, particularly ventricular tachycardia, can trigger ventricular fibrillation wherein the heart beats chaotically resulting in little or no net flow of blood from the heart to the brain and organs.

   2013, “Therapies and Treatments”, in Q. Ashton Acton, editor, Tachycardia: New Insights for the Healthcare Professional, Atlanta, Ga.: ScholarlyEditions, published 2013, →ISBN, page 235

   Both CRT-Ds and ICDs are implanted under the skin, in the patient’s upper chest area. The devices have wires called leads that attach to the heart and regulate the rhythm of the muscle. Defibrillators help patients with bradycardia – a slow heartbeat – by pacing the heartbeat and those with tachycardia – a fast heartbeat – by delivering shocks that reset heartbeats to normal.

   2016 October 11, Hailey Middlebrook, “After 2 deaths, patients warned about heart defibrillators’ failed batteries”, in CNN, archived from the original on 31 Oct 2020

   When your resting heart rate is over 100 bpm, providers call this tachycardia. This means you may have an issue with your heart’s conduction system that signals your heart to beat. Examples of this type of issue include atrial flutter and ventricular tachycardia.

   2024 March 15, “Heart Rate”, in Cleveland Health, archived from the original on 07 Aug 2024

   Synonyms: tachyrhythmia · Antonyms: bradycardia