QRS


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QRS

A pattern seen in an electrocardiogram that indicates the pulses in a heart beat and their duration. Variations from a normal QRS pattern indicate heart disease.
Mentioned in: Bundle Branch Block
References in periodicals archive ?
Conversion of LBBB to normal QRS complexes determined on ECG Immediately after CRT-D implantation.
Caption: FIGURE 3: ECG recorded 6 hours after the ECG in Figure 1 showed sinus rhythm with a long P-R interval, a narrower but still abnormally wide (178 ms) QRS complex with ST-T changes compatible with the conduction delay, but no evidence of hyperkalemia.
In addition, patients with QRS-T angles >90[degrees] had a longer PR interval, QRS duration, and QT interval and higher T-wave axis and leftward QRS axis.
The relation between LVEF and cTnT concentration; LVEF and QRS score was studied using Pearson's correlation coefficient and by systemic analysis of sensitivity and specificity.
Xue su bendraautoriais yra pasiules adaptyvaus sutapdinto filtravimo algoritma, grista dirbtiniu neuronu tinklu taikymu QRS atskaitoms aptikti (Xue et al.
If a P-wave before a missing QRS is early (P-to-P interval not constant), a non-conducted premature atrial complex (PAC) would be indicated--a more benign finding (Surawicz & Knilans, 2008).
Patients with a preoperative history of AF, moderate or significant organic valvular heart disease, left or right incomplete or complete bundle branch block, antiarrhythmic use, duration of QRS [greater than or equal to] 120 msn and patients with permanent pacemakers were excluded from the study.
Timothy Lebens, Vice President of Sales and Marketing at QRS said, “QRS has introduced three new medical devices in the last 30 days, a wonderful accomplishment from our team.
Among patients with LVP, 75% had QTmax > 450ms, 85% QTc > 450ms, 55% QTm [greater than or equal to] 400ms, 100% QRS [greater than or equal to] 100ms, 95% T0e > 270 ms, 95% Tpe > 120 ms, 90% Tampl > 0.
We also agree that there are numerous characteristics of ventricular tachycardia easily applied to a resting 12-lead ECG (eg, QRS axis).
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