Essential in the assessment of ventricular activation, the QRS complex has varied morphologies in the different leads of the electrocardiogram. This is because it can be seen distinctly from the vantage points. Without any background disease. However, it is important to know the main characteristics and abnormalities relate to pathologies such as bundle branch blocks. I talk more about this subject throughout the article. With emphasis on the remote ECG report. issued with agility via cardiological telemedicine . Follow until the end to clear your main doubts about it.
What is QRS comple
The QRS complex is a section of the ECG trace formed by three waves: Q, R and S . Remembering that when the heart muscle beats in sinus rhythm Korea Phone Number Data or normal, five waves appear in the electrocardiogram graphs: P, Q, R, S and T. In this scenario, each beat is made up of the P wave, QRS complex, and T wave sequence . According to the guidelines of the Brazilian Society of Cardiology on Analysis and Issuance of Electrocardiographic Reports: “The QRS complex is said to be normal when the duration is less than 120 ms and amplitude between 5 and 20 mm in frontal plane leads and between 10 and 30 mm in precordial leads, with normal orientation of the electrical axis”.
It should also be mentioned that the normal limits of the
Cardiac axis in the frontal plane are between -30º and +90º. Check now the characteristics of each wave that makes up the QRS complex. Q wave In a Bold Data normal ECG tracing, the Q wave is always negative , usually less than 0.04 second in duration and 2 mm in depth. If it appears in leads V1 to V3, it is a pathological Q wave , signaling necrosis ( recent or past acute myocardial infarction ). R wave It usually stands out in the QRS complex, as it corresponds to the positive deflection . Its duration and amplitude vary according to the lead observed, however, the increased amplitude may indicate ventricular overload.
