Kardia Advanced Determination “Sinus Rhythm with Wide QRS” indicates sinus rhythm with a QRS, or portion of your ECG, that is longer than expected. This could indicate a bundle branch block in which there is a delay in the passage of heart's electrical signals along the bottom of the heart. The electrical signal to make the heartbeat starts at the top of the heart and travels to the bottom of the heart. As the signal travels, it makes the heart contract in a coordinated manner. A wider QRS may indicate that the bottom of the heart is contracting a little later than it should. Wide QRS is noted on ECG when there is a delay, or widening, in the part of the ECG called the QRS complex.
What Causes Sinus Rhythm with Wide QRS?
Your doctor can review your wide QRS ECG and give you additional information on whether you have a bundle branch block. Some of the causes for bundle branch block include heart attack; a thickened, stiffened or weakened heart muscle (congestive heart failure); lung disease; or high blood pressure. Bundle branch block does not usually cause symptoms unless you have some other heart condition. In those cases, people may experience fainting, dizziness, or weakness, or chest pain.*
What Can I Do Next?
Bundle branch block may not need treatment. When it does, treatment often involves managing the health condition that caused the bundle branch block. If you have bundle branch block, your doctor can give you additional instructions about how to manage it and your overall heart health.
*Kardia cannot detect signs of a heart attack. If you believe you are
having a medical emergency, call emergency services.