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The PR segment is the flat line between the end of the P-wave and the start of the QRS complex. The PR segment reflects the time delay between atrial and ventricular activation. The PR segment also serves as the baseline (reference line or isoelectric line) of the ECG curve.
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The P-wave, PR interval and PR segment. ECG interpretation traditionally starts with an assessment of the P-wave. The P-wave reflects atrial depolarization (activation). The PR interval is the distance between the onset of the P-wave to the onset of the QRS complex. The PR interval is assessed in order to determine whether impulse conduction ...
The flat line between the end of the P-wave and the onset of the QRS complex is called the PR segment and it reflects the slow impulse conduction through the atrioventricular node. The PR segment serves as the baseline (also referred to as reference line or isoelectric line ) of the ECG curve.
4 lut 2021 · The PR segment is the flat, usually isoelectric segment between the end of the P wave and the start of the QRS complex. PR segment abnormalities. These occur in two main conditions: Pericarditis. Atrial ischaemia. Pericarditis. The characteristic changes of acute pericarditis are: PR segment depression.
19 maj 2024 · The PR interval is measured from the beginning of the P wave to the beginning of the QRS complex. It comprises the P wave and the PR segment. The interval should be measured in the lead with the largest, widest P wave and the longest QRS duration 1.
The PR interval is a measurement of the time it takes from the start of the p wave to the start of the QRS complex, typically 3-5 mm in duration. This interval is representative of the physiologic delay caused by transmission of impulses through the AV node.
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) until the beginning of the QRS complex (the onset of ventricular depolarization); it is normally between 120 and 200 ms in duration.
