Back القطعة إس تي (رسم قلب) Arabic Segment ST Catalan Segmento ST Spanish قطعه استی Persian מקטע ST HE Segmento ST Italian ST 분절 Korean Odcinek ST Polish Elevação do segmento ST Portuguese ᱮᱥ ᱴᱤ ᱛᱷᱚᱱᱚᱛ SAT
In electrocardiography, the ST segment connects the QRS complex and the T wave and has a duration of 0.005 to 0.150 sec (5 to 150 ms).
It starts at the J point (junction between the QRS complex and ST segment) and ends at the beginning of the T wave. However, since it is usually difficult to determine exactly where the ST segment ends and the T wave begins, the relationship between the ST segment and T wave should be examined together. The typical ST segment duration is usually around 0.08 sec (80 ms). It should be essentially level with the PR and TP segments.
The ST segment represents the isoelectric period when the ventricles are in between depolarization and repolarization.