We're unable to sign you in at this time. Please try again in a few minutes.
We were able to sign you in, but your subscription(s) could not be found. Please try again in a few minutes.
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 |

Relation of Cardiac Work to Survival in Cardiogenic Shock in Dogs

Ronald H. Dietzman, MD; Gary W. Lyons, MD; Jack H. Bloch, MD; Richard C. Lillehei, MD, PhD
JAMA. 1967;199(11):825-829. doi:10.1001/jama.1967.03120110097015.
Text Size: A A A
Published online


In this study we have evaluated the effects of the pressure and volume components of myocardial work on survival in cardiogenic shock. Experimental cardiogenic shock was produced in dogs by a modification of a method first described by Agress.1 Quantitative changes in blood pressure, cardiac output, peripheral resistance, and myocardial work were obtained in a group of control dogs before and after the production of shock. Similar hemodynamic measurements were obtained in groups of dogs receiving vasopressor, vasodilator, or volume expansion therapy. The survival rate in each group was compared to the control group and related to the pressure and volume components of myocardial work.

Materials and Methods  Mongrel dogs weighing between 10 and 20 kg were premedicated with intramuscular injections of morphine sulfate (1 mg/kg of body weight). The dogs were anesthetized with intravenous sodium thiamylal to the depression of the corneal reflex. An endotrachial airway was inserted


Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?




Also 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.
Please click the checkbox indicating that you have read the full article in order to submit your answers.
Your answers have been saved for later.
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.


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

0 Citations

Sign in

Purchase Options

• Buy this article
• Subscribe to the journal
• Rent this article ?

Related Content

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