interval

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interval

 [in´ter-val]
the space between two objects or parts; the lapse of time between two events.
AA interval the interval between two consecutive atrial stimuli.
atrioventricular interval (AV interval)
2. in dual chamber pacing, the length of time between the sensed or paced atrial event and the next sensed or paced ventricular event, measured in milliseconds; called also atrioventricular or AV delay.
cardioarterial interval the time between the apical beat and arterial pulsation.
confidence interval an estimated statistical interval for a parameter, giving a range of values that may contain the parameter and the degree of confidence that it is in fact there.
coupling interval the distance between two linked events in the cardiac cycle.
His-ventricular (H-V) interval an interval of the electrogram of the bundle of His, measured from the earliest onset of the His potential to the onset of ventricular activation as recorded on eight of the intracardiac bipolar His bundle leads or any of the multiple surface ECG leads; it reflects conduction time through the His-Purkinje system.
lucid interval
1. a brief period of remission of symptoms in a psychosis.
2. a brief return to consciousness after loss of consciousness in head injury.
PA interval the interval from the onset of the P wave on the standard electrocardiogram (or from the atrial deflection on the high right atrial ECG) to the A wave on the His bundle ECG; it represents intra-atrial conduction time.
postsphygmic interval the short period (0.08 second) of ventricular diastole, after the sphygmic period, and lasting until the atrioventricular valves open.
P–R interval in electrocardiography, the time between the onset of the P wave (atrial activity) and the QRS complex (ventricular activity).
presphygmic interval the first phase of ventricular systole, being the period (0.04–0.06 second) immediately after closure of the atrioventricular valves and lasting until the semilunar valves open.
QRST interval (Q–T interval) in the electrocardiogram, the length of time between ventricular depolarization (the Q wave) and repolarization (the T wave); it begins with the onset of the QRS complex and ends with the end of the T wave.
VA interval [ventricular-atrial interval] the interval between a ventricular stimulus and the succeeding atrial stimulus; it is equal to the AA interval minus the atrioventricular interval.

in·ter·val

(in'tĕr-văl),
A time or space between two periods or objects; a break in continuity.
[L. intervallum, space between breastworks in a camp, an interval, fr. vallum, a rampart, wall]

interval

Vox populi A period of time or space between 2 discrete periods or objects. See AH interval, AV interval, Class interval, Confidence interval, Conference interval, Dosing interval, Escape interval, Lucid interval, PA interval, QT interval, V-A interval.

in·ter·val

(in'tĕr-văl)
A time or space between two periods or objects; a break in continuity.

in·ter·val

(in'tĕr-văl)
A time or space between two periods or objects; a break in continuity.
References in periodicals archive ?
Klebanoff said he had a pending grant application to the National Institutes of Health to study the association between interpregnancy interval and birth outcomes, and had no other competing interests.
Associations between Quartiles of Perfluoroalkyl Acids and the Time to Pregnancy Correcting for the Interpregnancy Interval
These findings correspond to those who posited that the effect of long interpregnancy intervals is due to the fact that the protective effect that women might have acquired along the previous pregnancy is lost after a long interval (8,12,31).
This study showed that the proportion of LBW newborns was high (55.6%) when interpregnancy interval was less than 12 months and it was lower among mothers who had interval of more than 24 months.
These included the mother's being 16 or younger (odds ratios, 1.9-3.0), having had inadequate prenatal weight gain (1.4-1.8), having had a previous adverse birth outcome (3.8-4.5), smoking during pregnancy (1.6-1.8) and having had any interpregnancy interval of less than 18 months (1.3-2.7).
In accordance with other guidelines, the document recommends that all women be screened for depression post partum and as part of well-woman care in the interpregnancy interval. Procedures for effective diagnosis, treatment, and follow-up should accompany the screening.
Predisposing factors include young age, grand multiparity, low socioeconomic status, illiteracy, ignorance and short interpregnancy intervals. (1) Infection with hookworm and intestinal helminths causes gastrointestinal blood loss resulting in depletion of the iron stores and consequently impaired erythropoiesis.
(7.) Conde-Agudelo A, Belizab J: Maternal Mortality assosciated with interpregnancy interval: cross sectional study.
The risk of bleeding was elevated to a similar extent among women who had had a medication abortion before age 25 and those who had had one later; the risk also was elevated among both women with an interpregnancy interval of less than 12 months and those with longer intervals (relative risks, 1.2-1.3).
Multivariable logistic regression analysis was used to assess associations between cesarean delivery and subsequent stillbirth; regression models controlled for the foregoing maternal characteristics, as well as for panty, interpregnancy interval and year of birth.
Benefits associated with WIC supplemental feeding during the interpregnancy interval. Am J Clin Nutr 45:25-41