In electrocardiography, the PR interval is the period, measured in milliseconds, that extends from the beginning of the P wave (the onset of atrial depolarization)...

This analysis calculates features such as the PR interval, QT interval, corrected QT (QTc) interval, PR axis, QRS axis, rhythm and more. The results from...

combination of palpitations and when an electrocardiogram (ECG) show a short PR interval and a delta wave. It is a type of pre-excitation syndrome. WPW syndrome...

node. This condition is diagnosed via ECG, with PR intervals in excess of 200 milliseconds. The PR interval represents the length of time between the start...

in the AV node forms much of the PR segment on the ECG, and part of atrial repolarization can be represented by the PR segment. The distal portion of the...

block. It is diagnosed using an electrocardiogram, and is defined as a PR interval greater than 200 milliseconds. First degree AV block affects 0.65-1.1%...

is defined by progressive prolongation of the PR interval, with a resulting dropped beat (the PR interval gets longer and longer until a beat is finally...

sequence. There are a few key intervals that must be measured for proper analysis of a heart rhythm, The PR interval is the interval between the end of the P...

the PR interval on consecutive beats followed by a blocked P wave (i.e., a dropped QRS complex). After the dropped QRS complex, the PR interval resets...

In Bayesian statistics, a credible interval is an interval used to characterize a probability distribution. It is defined such that an unobserved parameter...

measure the QRS interval start at the end of the PR interval (or beginning of the Q wave) to the end of the S wave. Normally this interval is 0.08 to 0.10...

tolerance interval with endpoints ( L ( x ) , U ( x ) ] {\displaystyle (L(\mathbf {x} ),U(\mathbf {x} )]} which has the defining property: inf θ { Pr θ ( F...

with LGL syndrome have episodes of abnormal heart racing with a short PR interval and normal QRS complexes seen on their electrocardiogram when in a normal...

Look up PR or .pr in Wiktionary, the free dictionary. PR, P.R., Pr, pr, or Pr. may refer to: P.R. (TV series), a Canadian television sitcom Partisan Review...

complexes with a regular R-to-R interval represent the second rhythm. The PR interval will be variable, as the hallmark of complete heart block is the lack...

The prediction interval for any standard score z corresponds numerically to (1 − (1 − Φμ,σ2(z)) · 2). For example, Φ(2) ≈ 0.9772, or Pr(X ≤ μ + 2σ) ≈ 0...

ratio of 1:1. Normal P wave axis (0 to +75 degrees) Normal PR interval, QRS complex and QT interval. QRS complex positive in leads I, II, aVF and V3–V6, and...

waves first degree atrioventricular block manifesting as a prolonged PR-interval low amplitude QRS complexes in the right precordial leads atypical right...

confirmed after a week. Specific changes, such as a shortened QT interval and prolonged PR interval, may be seen on an electrocardiogram (ECG). Treatment may...

P waves: Upright, consistent, and normal in morphology and duration. PR interval: Between 0.12 and 0.20 seconds in duration. QRS complex: Less than 0...

small squares) in a precordial lead. The baseline is either the PR interval or the TP interval. This measure has a false positive rate of 15–20% (which is...

in the following progression: peaked T wave, shortened QT interval, lengthened PR interval, increased QRS duration, and eventually absence of the P wave...

The QT interval is a measurement made on an electrocardiogram used to assess some of the electrical properties of the heart. It is calculated as the time...

in which bifascicular block is observed in a patient with a prolonged PR interval (first degree AV block). The treatment of trifascicular block is highly...

first degree: prolonged PR interval (> 0.20 seconds) second degree mobitz type I (wenckebach): progressive lengthening of PR interval then dropped beat (p...

L].} The confidence interval given before is mathematically incorrect, as Pr ( [ θ ^ , θ ^ + ε ] ∋ θ ) ≥ 1 − α {\displaystyle \Pr {\big (}[{\hat {\theta...

others) or C reactive protein (>3.0 mg/dL). ECG showing a prolonged PR interval after accounting for age variability (Cannot be included if carditis...

septal defects may have a prolonged PR interval (a first-degree heart block). The prolongation of the PR interval is probably due to the enlargement of...

inference, specifically predictive inference, a prediction interval is an estimate of an interval in which a future observation will fall, with a certain...

beats show a constant, typically normal PR interval, and conduction to the ventricles occurs at regular intervals. This form is identical to the type of...