0
We're unable to sign you in at this time. Please try again in a few minutes.
Retry
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
Retry
There may be a problem with your account. Please contact the AMA Service Center to resolve this issue.
Contact the AMA Service Center:
Telephone: 1 (800) 262-2350 or 1 (312) 670-7827  *   Email: subscriptions@jamanetwork.com
Error Message ......
Access to paid content on this site is currently suspended due to excessive activity being detected from your IP address 54.196.196.72. Please contact the publisher to request reinstatement.
ARTICLE |

Wide and Narrow QRS-Complex Tachycardias Occurring in the Same Patient

Amjad I. Sheikh, MD; Algimantis Kerpe, MD; Steven Swiryn, MD
Arch Intern Med. 1984;144(2):385-387. doi:10.1001/archinte.1984.00350140215028.
Text Size: A A A
Published online

ABSTRACT

A wide QRS-complex tachycardia may be of either ventricular origin or of supraventricular origin with preexisting or rate-dependent bundle-branch block. Distinction between the two has important causative, prognostic, and therapeutic implications. Although definitive diagnosis sometimes requires intracardiac electrophysiologic studies, much information can be obtained from careful examination of the surface ECG. We describe a patient who had both wide and narrow QRS-complex tachycardias in whom the correct diagnosis was made in this manner.

REPORT OF A CASE  A 28-year-old resident physician had experienced sporadic episodes of paroxysmal palpitations since the age of 15 years. These episodes were accompanied by dizziness but not by chest pain, shortness of breath, or syncope. The average frequency of these episodes was about once bimonthly. Between episodes, he was completely well. Physical examination showed no abnormalities. A chest roentgenogram, the initial ECG, and the M-mode and two-dimensional echocardiograms were normal. A diagnostic treadmill test was

Topics

Sign in

Create a free personal account to sign up for alerts, share articles, and more.

Purchase Options

• Buy this article
• Subscribe to the journal

First Page Preview

View Large
/>
First page PDF preview

Figures

Tables

References

Correspondence

CME
Meets CME requirements for:
Browse CME for all U.S. States
Accreditation Information
The American Medical Association is accredited by the Accreditation Council for Continuing Medical Education to provide continuing medical education for physicians. The AMA designates this journal-based CME activity for a maximum of 1 AMA PRA Category 1 CreditTM per course. Physicians should claim only the credit commensurate with the extent of their participation in the activity. Physicians who complete the CME course and score at least 80% correct on the quiz are eligible for AMA PRA Category 1 CreditTM.
Note: You must get at least of the answers correct to pass this quiz.
You have not filled in all the answers to complete this quiz
The following questions were not answered:
Sorry, you have unsuccessfully completed this CME quiz with a score of
The following questions were not answered correctly:
Commitment to Change (optional):
Indicate what change(s) you will implement in your practice, if any, based on this CME course.
Your quiz results:
The filled radio buttons indicate your responses. The preferred responses are highlighted
For CME Course: A Proposed Model for Initial Assessment and Management of Acute Heart Failure Syndromes
Indicate what changes(s) you will implement in your practice, if any, based on this CME course.
NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).
Submit a Comment

Multimedia

Some tools below are only available to our subscribers or users with an online account.

Sign in

Create a free personal account to sign up for alerts, share articles, and more.

Purchase Options

• Buy this article
• Subscribe to the journal

Related Content

Customize your page view by dragging & repositioning the boxes below.

Jobs
brightcove.createExperiences();