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(Chamberlain Procedure; Anterior Mediastinotomy)
by Alexandra Howson, PhD
The mediastinum is the area in the middle of the chest between the lungs. A mediastinotomy is the creation of a small opening in the upper chest into the mediastinum. This opening allows the doctor to examine the area between and in front of the lungs.
Reasons for Procedure TOP
This procedure is done to examine the lungs and chest. Your doctor might take tissue samples (biopsy). These samples are examined under a microscope to check for diseases like:
Mediastinotomy is also done to find out if lung cancer has spread.
Possible Complications TOP
Problems from the procedure are rare, but all procedures have some risk. Your doctor will review potential problems, like:
Before your procedure, talk to your doctor about ways to manage factors that may increase your risk of complications, such as:
What to Expect TOP
Prior to the Procedure
You will be asked to stop eating and drinking for 8-10 hours before the procedure.
You may be asked to stop taking some medications up to 1 week before the procedure.
On the day of the procedure:
General anesthesia—you will be asleep during the procedure
Description of the Procedure TOP
The doctor will make a small cut in the chest. Muscles will be moved aside in order to examine the space between the lungs and heart. Samples may be taken from the lungs, lymph nodes, or other chest tissue. The doctor will close the incision with stitches. The wound will be covered with a dressing or bandage.
Immediately After the Procedure TOP
You will be taken to the recovery room for monitoring.
How Long Will It Take? TOP
30 minutes to 2 hours
How Much Will It Hurt? TOP
Anesthesia will prevent pain during surgery. Pain and discomfort after the procedure can be managed with medications.
Average Hospital Stay TOP
This procedure can be done in an outpatient setting or as part of your hospital stay. The usual length of stay is up to 24 hours, if there are no complications. Some people may need to stay in the hospital for 1-2 days.
Post-procedure Care TOP
At the Hospital
During your stay, the hospital staff will take steps to reduce your chance of infection, such as:
There are also steps you can take to reduce your chance of infection, such as:
You will have restrictions on specific activities during your recovery. Follow your doctor's instructions.
Call Your Doctor TOP
Contact your doctor if your recovery is not progressing as expected or you develop complications, such as:
If you think you have an emergency, call for medical help right away.
Chamberlain procedure. Roswell Park Cancer Institute website. Available at: https://www.roswellpark.org/glossary/chamberlain-procedure Accessed March 6, 2018.
Mediastinoscopy and mediastinotomy. Merck Manual Professional Version website. Available at:
...(Click grey area to select URL)
Updated October 2016. Accessed March 6, 2018.
Sarcoidosis in adults. EBSCO DynaMed Plus website. Available at: http://www.dynamed.... Updated November 13, 2017. Accessed March 6, 2018.
6/6/2011 DynaMed Plus Systematic Literature Surveillance http://www.dynamed...: Mills E, Eyawo O, et al. Smoking cessation reduces postoperative complications: a systematic review and meta-analysis. Am J Med. 2011;124(2):144-154.
Last reviewed March 2018 by EBSCO Medical Review BoardAlan Drabkin, MD
Last Updated: 1/23/2014
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