[Skip to Navigation]
Views 109
Citations 0
Comment & Response
December 2019

Additional Questions Regarding Wide QRS Tachycardia and Atrial Fibrillation

Author Affiliations
  • 1The Cardiovascular Institute, The First Affiliated Hospital of Jinzhou Medical University, Jinzhou, Liaoning, China
JAMA Intern Med. 2019;179(12):1731. doi:10.1001/jamainternmed.2019.5081

To the Editor We read with great interest the article by Bucklew and colleagues1 that was published in a recent issue of JAMA Internal Medicine. The article is very valuable, and we organized postgraduates to study it carefully. They have proposed 3 interesting questions regarding the article: (1) In patients with atrial fibrillation (Figure 2, baseline electrocardiogram [ECG]), why is the RR interval almost equal?2 (2) In Figure 3, why are there 2 different morphologies of wide-QRS complex caused by flecainide-associated toxic effects? (3) Combined with Figure 3, is the ECG in Figure 1 considered to be consistent with a diagnosis of ventricular tachycardia (VT)?

Limit 200 characters
Limit 25 characters
Conflicts of Interest Disclosure

Identify all potential conflicts of interest that might be relevant to your comment.

Conflicts of interest comprise financial interests, activities, and relationships within the past 3 years including but not limited to employment, affiliation, grants or funding, consultancies, honoraria or payment, speaker's bureaus, stock ownership or options, expert testimony, royalties, donation of medical equipment, or patents planned, pending, or issued.

Err on the side of full disclosure.

If you have no conflicts of interest, check "No potential conflicts of interest" in the box below. The information will be posted with your response.

Not all submitted comments are published. Please see our commenting policy for details.

Limit 140 characters
Limit 3600 characters or approximately 600 words
    ×