trigeminy

trigeminy

 [tri-jem´ĭ-ne]
the condition of occurring in threes, especially the occurrence of three pulse beats in rapid succession.

tri·gem·i·nal rhyth·m

a cardiac arrhythmia in which the beats are grouped in trios, usually composed of a sinus beat followed by two extrasystoles.
Synonym(s): trigeminy

trigeminy

Cardiology
1. An arrhythmia in which 2 normal QRS complexes are followed by a PVC; this rhythm usually does not progress to dangerous forms of fast ventricular rhythms; in this rhythm, two VPCs never occur one right after the other.
2. A group of 3 beats, usually a sinus beat followed by 2 extrasystoles Etiology Digitalis toxicity, dizziness, caffeine. See Premature ventricular contraction.

tri·gem·i·nal rhythm

(trī-jem'i-năl ridh'ŭm)
A cardiac arrhythmia in which the beats are grouped in trios, usually composed of a sinus beat followed by two extrasystoles.
Synonym(s): trigeminy.
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References in periodicals archive ?
A 24-hours Holter recording revealed up to significant ventricular ectopic burden, many of which were bigeminy and trigeminy in nature.
Supraventricular or atrial trigeminy is an impulse formation disturbance characterized by a condition in which every third beat is a supraventricular premature beat (BOLTON, 1975).
The series 100 includes 23 subjects without AF, whereas the series 200 contains AF episodes and other rhythms, such as atrial and ventricular bigeminy, ventricular trigeminy, atrial flutter, and ventricular and supraventricular tachycardia.
Ventricular ectopy was 5374, with 390 V-Runs and 680 V-Pairs, Ventricular Bigeminy events were 31 and ventricular Trigeminy events were 6.
The episodes that can be classified include ventricular premature systole, ventricular bigeminy, ventricular trigeminy, ventricular couplet, ventricular tachycardia, ventricular flutter/fibrillation, and 2nd degree heart block.
Ventricular cardiac rhythm impairments were identified in 5 (23.8 [+ or -] 9.5%) patients and manifested as extrasystoles, bigeminy and trigeminy. The presence of zones of hypokinesia and akinesia was revealed in 4 (19.1 [+ or -] 8.7%) patients, that was also confirmed by trans-mural myocardial infarction identified on ECG and from the past history.
All cases demonstrated frequent runs of bigeminy, trigeminy and/or multiple episodes of uni-/multi-focal PVC and were determined by the attending anesthesiologist to require conversion to ECG-gated shock delivery for patient safety.
of events per patient (interquartile range) Arrhythmia Mask No mask Mask No mask Dropped 2 2 1(1-1) K1-D beat VT 1 2 2 (2-2) 1(1-1) Salvo 1 2 4 (4-4) 2(1-3) Bigeminy 15 18 4(1-33) 6 (2-36) Triplet 1 0 11(11-11) 0(0-0) Couplet 9 4 2(1-5) 2(1-10) Bradycardia 20 19 52 (3-275) 89 (9-347) SVT 2 5 1(1-1) K1-D Trigeminy 3 4 12(6-134) 10(6-230) Premature 79 77 17(3-122) 22(3-181) aberrant Isolated 52 54 3(1-16) 5(1-25) aberrant Premature 81 84 12 (3-56) 12 (3-42) normal Abbreviations: SVT, supraventricular tachycardia; VT, ventricular tachycardia.
In the largest series of overdoses cases, sinus tachycardia, ventricular trigeminy, and junctional rhythms occurred on doses as high as 1500 mg of fluoxetine alone (23, 24).
Ambulatory cardiac monitoring showed frequent PVCs (16% of QRS complexes) with frequent trigeminy. Symptoms worsened, and 22 days after vaccination, she was evaluated in an ED and hospitalized.
Once the dopamine drip was initiated, her VT episodes appeared more frequent and she had more bigeminy and trigeminy. Her electrolytes on admission to the PICU were Na 139, K 4, Cl 92, HC[O.sub.3] 23, Glucose 91, Mg 2.1, and Ca 9.8.