Sinus tachycardia is indicated on ECG with a normal upright P wave in lead II preceding every QRS complex (indicating that the pacemaker is coming from the sinus node and not elsewhere in the atria) ...
In this situation, the P-wave morphology in leads V1 and II plays a decisive role. The P wave of sinus rhythm is biphasic (initially positive, then negative) in V1, with or without left atrial ...
Background Inappropriate sinus tachycardia (IST) is characterized by persistent and disproportional elevation of heart rate (HR). Ivabradine has been successfully used in some patients. Methods Twenty ...
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When to go to the hospital for rapid heart rate
Medically reviewed by Jeffrey S. Lander, MD Key Takeaways Go to the hospital if a rapid heart rate is with chest pain, ...
Supported by a grant (HE 12373) from the Public Health Service and a grant from the San Diego County Heart Association. We are indebted to Dr. David B. Carmichael, who referred the patient for ...
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