| tachycardia, sinus | Fast heartbeat (tachycardia) occurring because of rapid firing by the sa node, the natural pacemaker of the heart. Electrical signals initiated in the sa node are transmitted to the atria and the ventricles to stimulate heart muscle contractions heartbeats. Sinus tachycardia is usually a rapid contraction of a normal heart in response to a condition, drug, or disease. For examples, pain, fever, excessive thyroid hormone, exertion, excitement, low blood oxygen level (hypoxia), or stimulant drugs such as caffeine, cocaine, and amphetamines can cause tachycardia. However, in some cases, it can be a sign of heart failure or heart valve disease or other illness. (12 Dec 1998) |
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| tachycardia, supraventricular | A generic expression for any tachycardia that originates above the bundle of his. (12 Dec 1998) |
| tachycardia, ventricular | An abnormal heart rhythm that is rapid, regular and originates from an area of the ventricle, the lower chamber of the heart. Ventricular tachycardias are life threatening arrhythmias most commonly associated with heart attacks or scarring of the heart muscle from previous heart attack. (12 Dec 1998) |
| tachycardia-bradycardia syndrome | <syndrome> A disorder consisting of abnormalities of supraventricular impulse generation and conduction which produce a wide variety of intermittent rapid and slow supraventricular arrhythmias. Common symptoms include palpitations, faintness and fainting. Diagnosis is generally by 24 hour cardiac monitoring. A permanent pacemaker is indicated for those who are unresponsive to drug therapy. (27 Sep 1997) |
| tachycardiac | Relating to or suffering from excessively rapid action of the heart. (05 Mar 2000) |
| tachycardic | Relating to rapid heart rate. (05 Mar 2000) |
| tachycrotic | Relating to, causing, or characterised by a rapid pulse. Origin: tachy-+ G. Krotos, a striking (05 Mar 2000) |
| tachyglossa | <zoology> A division of monotremes which comprises the spiny ant-eaters of Australia and new Guinea. Origin: NL, fr. Gr. Quick + tongue. Source: Websters Dictionary (01 Mar 1998) |
| tachygraphic | Of or pertaining to tachygraphy; written in shorthand. Origin: Cf. F. Tachygraphique. Source: Websters Dictionary (01 Mar 1998) |
| tachygraphical | Of or pertaining to tachygraphy; written in shorthand. Origin: Cf. F. Tachygraphique. Source: Websters Dictionary (01 Mar 1998) |
| tachygraphy | The art or practice of rapid writing; shorthand writing; stenography. Origin: Gr. Quick: cf. F. Tachygraphie. Source: Websters Dictionary (01 Mar 1998) |
| tachykinin | Any member of a group of polypeptides, widely scattered in vertebrate and invertebrate tissues, that have in common four of the five terminal amino acids: Phe-Xaa-Gly-Leu-Met-NH2; pharmacologically, they all cause hypotension in mammals, contraction of gut and bladder smooth muscle, and secretion of saliva. Origin: G. Tachys, swift, + kineo, to move, + -in (05 Mar 2000) |
| tachykinins | A family of biologically active peptides sharing a common conserved c-terminal sequence, -phe-x-gly-leu-met-nh2, where x is either an aromatic or a branched aliphatic amino acid. Members of this family have been found in mammals, amphibians, and mollusks. Tachykinins have diverse pharmacological actions in the central nervous system and the cardiovascular, genitourinary, respiratory, and gastrointestinal systems, as well as in glandular tissues. This diversity of activity is due to the existence of three or more subtypes of tachykinin receptors. (12 Dec 1998) |
| tachylalia | Rarely used term for tachylogia. Origin: tachy-+ G. Lalia, talking (05 Mar 2000) |
| tachylogia | Rarely used term for rapid or voluble speech. Synonym: tachyphasia, tachyphemia, tachyphrasia. Origin: tachy-+ G. Logos, word (05 Mar 2000) |
Synonyms :
| tachycardia |
An abnormally rapid resting heart beat or pulse rate (over 100/min)
출처: www.nutrabio.com/Definitions/definitions_t.htm
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| tachycardia |
abnormally increased heart/pulse rate caused by various conditions
출처: www.lovingscents.com/Glossary.htm
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| tachyphylaxis |
less response after repeated applications. If you take certain drugs long-term, you must raise the dose after awhile to get the same effect. This is tachyphylaxis
출처: www.chfpatients.com/glossary_2.htm
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| tachycardia |
Rapid beating of the heart, conventionally applied to rates over 100 per minute.
출처: www.nbc-med.org/SiteContent/MedRef/OnlineRef/Field...
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| tachyphylaxis |
The decrease in the effectiveness of a given dose of a drug in response to long term use.
출처: www.sdrpharma.com/sj.htm
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