interval

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Related to QRS interval: QT interval

interval

noun abeyance, break, gap, halt, hiatus, interlude, intermission, interregnum, interruption, intervallum, intervening time, lapse, lull, pause, recess, respite, rest, spatium interiectum, spell, truce

INTERVAL. A space of time between two periods. When a person is unable to perform an act at any two given periods, but in the interval he has performed such act, as when a man is found to be insane in the months of January and March, and he enters into a contract or makes a will in the interval, in February, he will be presumed to have been insane at that time; and the onus will lie to show his sanity, on the person who affirms such act. See Lucid interval.

References in periodicals archive ?

Figure 8 Bar Chart showing Average QRS Interval in Athletes and Non Athletes QRS Interval Athletes 98 Non Athletes 90 Note: Table made from bar graph.

ECG changes in young competitive Indian athletes

Sodium channel blockers including class I antiarrhythmics by blocking inward sodium current can slow depolarization, reduce conduction velocity, and prolong the QRS interval and consequently may increase the risk of arrhythmia [13,16].

Alterations of blood pressure and ECG following two-week consumption of Berberis integerrima fruit extract

02 (a) Participants with a QRS interval [greater than or equal to] 120 ms were excluded from the analyses.

Arsenic exposure from drinking water and QT-interval prolongation: results from the health effects of Arsenic Longitudinal Study

Study subjects whose EKGs showed prolonged QRS intervals had SNPs in common with each other.

Study reveals links to abnormal rhythms behind sudden death, heart damage

Preimplantation rhythm and PR and QRS intervals were recorded with the use of conventional 12-lead electrocardiography.

Ejection fraction and QRS width as predictors of event rates in patients with implantable cardioverter defibrillators

Logistic regression analysis was performed in patients with narrow QRS interval.

Papillary muscle dyssynchrony as a cause of functional mitral regurgitation in non-ischemic dilated cardiomyopathy patients with narrow QRS complexes/Dar QRS'li non-iskemik dilate kardiyomiyopatili hastalarda fonksiyonel mitral yetersizliginin nedeni olarak papiller kas dissenkronisi

Since June 2003, CMS has covered ICDs in patients with ischemic dilated car diomyopathy (IDCM), a left ventricular ejection fraction less than 30%, and a QRS interval greater than 120 milliseconds.

Registry is a problem for expanded Medicare ICD coverage

They also had to have cardiac dyssynchrony as reflected by a QRS interval of at least 120 msec.

Resynchronization device cuts mortality

4 mg/dL or more, QRS interval 140 milliseconds or more, and atrial fibrillation.

Lower risk, less benefit from ICD

A prolonged QRS interval has been required for participation in all major CRT trials and is routinely used as a screening criterion for CRT eligibility in clinical practice.

Echo screening proposed as CRT eligibility test

At present, based upon data from the pre-SCD-HeFT era, Medicare will pay for an ICD in a patient who has ischemic heart failure, a left ventricular ejection fraction of 30% or less, prior MI, and an electrocardiogram showing a QRS interval or at least 120 milliseconds, regardless of whether the patient has experienced prior cardiac arrest.

CMS ponders expanded ICD indications; medicare official urges focus on value

Factors such as age, gender, left ventricular ejection fraction, New York Heart Association class, medical therapy, and QRS interval all failed to affect the basic finding that ICDs save lives.

Should all patients with a low ejection fraction get an implantable defibrillator?