What is sinus rhythm with wide qrs?

Sinus rhythm with wide QRS complexes is typically seen in certain conditions that affect the conduction of the electrical impulses through the heart. This can cause the QRS complex to be wider than normal (>0.12 seconds), indicating a delay in the electrical conduction through the ventricles.

Some common causes of sinus rhythm with wide QRS complexes include:

1. Bundle branch block: This occurs when one of the bundle branches (either the right or left bundle branch) is blocked, leading to delayed conduction through that branch, resulting in a widened QRS complex.

2. Ventricular tachycardia: This is a type of fast heart rhythm that originates in the ventricles, causing wide QRS complexes.

3. Hyperkalemia: Elevated levels of potassium in the blood can affect the conduction of electrical impulses through the heart, leading to wide QRS complexes.

4. Ventricular pre-excitation syndromes: Conditions such as Wolff-Parkinson-White syndrome can cause abnormal pathways for electrical impulses to bypass the normal conduction system, leading to wide QRS complexes.

It is important to identify the underlying cause of sinus rhythm with wide QRS complexes in order to determine the appropriate treatment and management. This may involve further testing such as an electrocardiogram (ECG), echocardiogram, or electrophysiological studies. Treatment may include medications, cardiac ablation procedures, or implantation of a pacemaker or defibrillator, depending on the specific underlying condition.