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 ......
ARTICLE |

Low-Energy Diets and Prolonged QT Intervals

Stuart Frank, MD; Jerry A. Colliver, PhD; Arthur Frank, MD
JAMA. 1987;257(12):1601. doi:10.1001/jama.1987.03390120063018.
Text Size: A A A
Published online

To the Editor.—  In a recent review entitled "Prolonged QT-Interval Syndromes,"1 the author indicates that "prolongation of the QT interval, malignant ventricular arrhythmias, and unexpected sudden death have been reported in patients who have lost considerable weight on the very-low-energy liquid protein diets." Dr Moss states that "sustained use of very-low-energy diets (300 to 400 kcal/d [1260 to 1680 kJ/d]) is dangerous and should be avoided," presumably because they predispose to QT prolongation and malignant ventricular arrhythmias.It has not been established whether the QT prolongation and associated malignant ventricular arrhythmias were due to the weight-reduction program, possible associated electrolyte disturbances, or a variety of medications that these patients were taking, or indeed whether the QT prolongation might be due to or associated with the obesity itself, independent of the weight-reduction program.2 A study of patients with obesity3 found that 28% of such patients have QTc

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

Figures

Tables

References

Letters

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.

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();