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 |

Effects of Acute and Chronic Reduction of Lung Volumes on Cardiopulmonary Reserve

ROBERT W. HARRISON, M.D.; WILLIAM E. ADAMS, M.D.; WALTER BEUHLER, M.D.; EDWIN T. LONG, M.D.
AMA Arch Surg. 1957;75(4):546-551. doi:10.1001/archsurg.1957.01280160056006.
Text Size: A A A
Published online

Reduced cardiopulmonary reserve following extensive pulmonary resection is an everincreasing problem. In certain patients, notably those in the older age group, the cardiorespiratory system is unable to compensate adequately after pneumonectomy and death sometimes occurs in the early postoperative period.1,2 Other patients undergoing extensive pulmonary resection are able to compensate sufficiently for the immediate effects of the sudden reduction in pulmonary parenchyma, only to develop incapacitating symptoms at a later time. Frequently these patients are entirely asymptomatic at rest, only to experience severe dyspnea on slight exertion. These "late" effects are not readily attributable to a lack of functioning lung tissue but are more likely due to a pulmonary vascular insufficiency associated with pulmonary arterial hypertension. Observations on a group of patients 5 to 15 years after pneumonectomy revealed a close correlation between the degree of incapacity and the degree of pulmonary hypertension. The resting pulmonary artery pressures ranged

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.
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();