What is a high J point on ECG?

What is a high J point on ECG?

Benign early repolarisation (BER) is a usually benign ECG pattern producing widespread ST segment elevation that is commonly seen in young, healthy patients < 50 years of age. Also known as “high take-off” or “J-point elevation”, it may mimic pericarditis or acute MI.

What does J point on ECG mean?

Introduction. The J point denotes the junction of the QRS complex and the ST segment on the electrocardiogram (ECG), marking the end of depolarization and beginning of repolarization.

What is ECG J point?

The J point denotes the junction of the QRS complex and the ST segment on the electrocardiogram (ECG), marking the end of depolarization and beginning of repolarization.

What is ECG J wave?

The “J wave” (also referred to as “the Osborn wave,” “the J deflection,” or “the camel’s hump”) is a distinctive deflection occurring at the QRS-ST junction. In 1953, Dr. John Osborn described the “J wave” as an “injury current” resulting in ventricular fibrillation during experimental hypothermia.

What is J in ECG?

The J point is the the junction between the termination of the QRS complex and the beginning of the ST segment. The J (junction) point marks the end of the QRS complex, and is often situated above the baseline, particularly in healthy young males.

How can you tell the difference between ST elevation and J point elevation?

ST segment / T wave morphology

1. There is elevation of the J point.
2. The T wave is peaked and slightly asymmetrical.
3. The ST segment and the ascending limb of the T wave form an upward concavity.
4. The descending limb of the T wave is straighter and slightly steeper than the ascending limb.

What is a J point elevation?

The term J-point elevation represents a family of ECG findings. It has been described in several metabolic disorders most notably hypothermia (abnormally low body temperature). Subtle nuances in its pattern may point to other conditions, the most common of which is termed ‘early repolarization’.

What is a J-point elevation?

J-point elevations are characteristic of all three patterns of Brugada-associated ECGs , the distinctions between the patterns reflected primarily in the J-waveforms following the J-points, and extending into the ST-segments and T-waves.

What is the J point on an ECG?

The J point is a point in time marking the end of the QRS and the onset of the ST segment present on all ECG’s; the J wave is a much less common long slow deflection of uncertain origin originally described in relation to hypothermia.

What is J point depression?

Elevation or depression of the J point is seen with the various causes of ST segment abnormality. A positive deflection prior to the J point is termed a J wave ( Osborn wave ) and is characteristically seen with hypothermia.