Featured Research

from universities, journals, and other organizations

Surgeons Use Microwave Technology To Destroy Tumors

Date:
February 5, 2009
Source:
University of California, San Diego
Summary:
A new minimally-invasive option for treating liver tumors, called microwave ablation, is now becoming available at more hospitals in the U.S. The method, simply put, involves zapping and destroying liver tumors with heat derived from microwave energy.

Dr. Marquis Hart destroys a liver tumor with minimally invasive microwave technology now available at UCSD Medical Center.
Credit: Image courtesy of University of California, San Diego

A new minimally-invasive option for treating liver tumors, called microwave ablation, is now available at UC San Diego Medical Center and Moores UCSD Cancer Center, the only hospitals in the region to offer this technology to patients.

“A liver tumor can be removed in many ways,” said Marquis Hart, MD, transplant surgeon at UC San Diego Medical Center. “Now, patients at UC San Diego have a new option called ‘microwave ablation.’ Simply put, we zap and destroy liver tumors with heat derived from microwave energy. This is an important alternative, especially since the majority of liver cancers cannot be partially removed and not all patients are transplant candidates.”

Liver cancer is on the rise in the United States, linked closely with the epidemic of hepatitis and other conditions causing cirrhosis, a degenerative disease of the liver. Current treatment options for liver cancer include transplantation, partial surgical removal of the liver, chemotherapy, radiation, or ablation—the destruction of abnormal tissue with heat from radiofrequency waves, high frequency ultrasound, freezing, or alcohol injection. Now, microwave technology, offered by Covidien, removes the tumor with intense heat.

To perform the procedure, Hart accesses the tumor through the skin, or through a small laparoscopic port or open incision. With ultrasound guidance or a computed tomography (CT) scan, the tumor is located and then pierced with a thin antenna which emits microwaves. This energy spins the water molecules in the tumor producing friction which causes heat. Temperatures above 60 degrees Celsius (140 degrees Fahrenheit) cause cellular death, usually within 10 minutes.

“Microwave ablation causes the tumor to be quickly and precisely removed. If necessary, multiple tumors can be treated at the same time,” said Hart. “This method appears to be more efficient than other ablation techniques which translates to better tumor destruction and less time for the patient under general anesthesia.”

In addition to liver disease, microwave ablation has promising potential in the treatment of lung, kidney, and bone cancer.

“The incidence of liver cancer in the United States has more than doubled in the last 20 years,” said Hart. “Conditions that cause chronic liver damage increase the risk of liver cancer. Fortunately the treatment options at UC San Diego Medical Center and Moores UCSD Cancer Center are numerous. No where else in the region will you find a multidisciplinary team of surgeons, hepatologists, radiologists, and oncologists offering the latest in cancer care. With a team dedicated specifically to the liver, our patients receive cutting–edge care from a diverse team of experts.”

According to the National Cancer Institute, primary liver and bile duct cancers are the fifth most common cause of cancer death in men and the ninth most common cause of cancer death in women. More than 90 percent of all cases occur in men and women age 45 or older. Liver cancer is closely associated with hepatitis virus infections. The incidence and mortality rates for these cancers have increased in all races and both sexes in the past two decades.


Story Source:

The above story is based on materials provided by University of California, San Diego. Note: Materials may be edited for content and length.


Cite This Page:

University of California, San Diego. "Surgeons Use Microwave Technology To Destroy Tumors." ScienceDaily. ScienceDaily, 5 February 2009. <www.sciencedaily.com/releases/2009/02/090204173038.htm>.
University of California, San Diego. (2009, February 5). Surgeons Use Microwave Technology To Destroy Tumors. ScienceDaily. Retrieved July 29, 2014 from www.sciencedaily.com/releases/2009/02/090204173038.htm
University of California, San Diego. "Surgeons Use Microwave Technology To Destroy Tumors." ScienceDaily. www.sciencedaily.com/releases/2009/02/090204173038.htm (accessed July 29, 2014).

Share This




More Health & Medicine News

Tuesday, July 29, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deadly Ebola Virus Threatens West Africa

Deadly Ebola Virus Threatens West Africa

AP (July 28, 2014) West African nations and international health organizations are working to contain the largest Ebola outbreak in history. It's one of the deadliest diseases known to man, but the CDC says it's unlikely to spread in the U.S. (July 28) Video provided by AP
Powered by NewsLook.com
$15B Deal on Vets' Health Care Reached

$15B Deal on Vets' Health Care Reached

AP (July 28, 2014) A bipartisan deal to improve veterans health care would authorize at least $15 billion in emergency spending to fix a veterans program scandalized by long patient wait times and falsified records. (July 28) Video provided by AP
Powered by NewsLook.com
Two Americans Contract Ebola in Liberia

Two Americans Contract Ebola in Liberia

Reuters - US Online Video (July 28, 2014) Two American aid workers in Liberia test positive for Ebola while working to combat the deadliest outbreak of the virus ever. Linda So reports. Video provided by Reuters
Powered by NewsLook.com
Traditional African Dishes Teach Healthy Eating

Traditional African Dishes Teach Healthy Eating

AP (July 28, 2014) Classes are being offered nationwide to encourage African Americans to learn about cooking fresh foods based on traditional African cuisine. The program is trying to combat obesity, heart disease and other ailments often linked to diet. (July 28) Video provided by AP
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins