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 |

Laser may have uses in bladder tumors, esophageal blockages

JAMA. 1985;253(13):1841-1843. doi:10.1001/jama.1985.03350370015002.
Text Size: A A A
Published online


Certain bladder tumors, as well as some obstructive esophageal malignancies, appear to be showing encouraging response to laser therapy. This is the indication from two preliminary reports presented at the First European Meeting on New Trends in Medicine, held in Milan, Italy.

For those two oncologic applications, the instrument of choice at this point for these investigators is the neodymium-yttrium-aluminum-garnet (YAG) laser. The device produces a powerful, highly focused beam of light in the near infrared range (1,060 μm) that can be transmitted to the tumor site through a flexible glass fiber, using the biopsy channel of an endoscope, they report.

The neodymium-YAG laser has been used by investigators in many of the studies of laser therapy of bladder and esophageal cancers reported in the past year. In 1984 alone, 20 such studies were reported in the Western scientific literature.

The neodymium-YAG laser apparently is especially useful in water-filled cavities


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.