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Chronic Pain After Breast Cancer Surgery

Study Shows Nearly Half of Patients Report Pain 2 Years After Surgery
By
WebMD Health News
Reviewed by Louise Chang, MD

breast_cancer_pain_1.jpg

Nov. 10, 2009 -- Barbara Schneider had breast cancer surgery seven years ago, but she still has frequent nerve pain in the area under her arm where lymph nodes were removed.

Now 57, Schneider says she has tried pain medication, exercise, and other nondrug treatments to get relief, but nothing has been completely effective.

"Some days it's not so bad, but on other days it's really terrible," she tells WebMD. "It's a constant burning or pulling sensation. Sometimes I don't even want to put a bra on because the pain is so intense."

Schneider's experience is not unique. New research confirms that chronic pain lasting for years after surgery is a common problem among breast cancer survivors.

Almost half of surveyed survivors reported experiencing pain related to their surgery two to three years after treatment in a study published this week in the Journal of the American Medical Association. 

Younger patients were more likely than older ones to have chronic pain. And patients who, like Schneider, had multiple lymph nodes removed in a procedure known as axillary node dissection were most at risk.

Researchers from the University of Copenhagen recruited 3,253 women who had breast cancer surgery for the study.

Roughly two years after treatment, the women answered questionnaires designed to explore the prevalence and severity of pain.

The survey revealed that:

  • 47% of the former patients reported pain in one or more areas. 
  • 52% of those reporting pain characterized the pain as severe or moderate, and 48% reported light pain. 
  • Among women reporting severe pain, 77% had pain every day. 
  • 58% of the women reported sensory disturbances such as numbness, tingling, or a "pins and needles" feeling.

Radiation, but not chemotherapy, was associated with an increased risk for persistent pain.

 

Younger Cancer Patients Most at Risk

Women under 40 were more than three times more likely to report persistent pain than women in their 60s.

Kelly McClusky, 38, and Joya Delgado Harris, 36, both had double mastectomies within the past two years.

Both women still experience what they characterize as phantom pains and itching in their breasts.

"It's not constant pain, but it can be annoying and frustrating," McClusky tells WebMD. "Sometimes it's a shooting pain and other times it's an itch that you can't get to."

Women in the study who had axillary lymph node dissection were almost twice as likely to have pain following surgery and five times as likely to have sensory disturbances than women who had sentinel node dissection, in which usually just one or a few of lymph nodes are removed to check for cancer instead of 10 or more.

The researchers conclude that the cause of most chronic pain following breast cancer treatment is injury to key nerves during surgery.

"We confirmed that nerve damage is a major contributor to chronic pain," study co-researcher Henrik Kehlet, MD, PhD, tells WebMD. "This emphasizes the need to find more delicate surgical techniques to avoid nerve damage."

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