Sunday, December 28, 2008

Breast Reconstruction With Tissue Much Safer Than Implants When Radiation Planned After Mastectomy

A study published in the November issue of the International Journal of Radiation Oncology*Biology*Physics examined the effect of radiation therapy on different methods of immediate breast reconstruction surgery. For breast cancer patients who receive radiation therapy after a mastectomy and immediate breast reconstruction, autologous tissue reconstruction (ie reconstruction using their own tissue) provides fewer long-term complications and superior cosmetic results than breast reconstruction with a tissue expander and subsequent breast implant.

Many women choose to undergo breast reconstruction surgery at the same time as their mastectomy procedure (under the same anesthetic). This avoids many of the psycho-social issues women face when dealing with a flat chest after mastectomy alone. However, frequently radiation can negatively affect the outcome of reconstruction and increase the risk of long-term complications.

Radiation therapy is increasingly becoming the standard of care for high-risk breast cancer patients after mastectomy in an attempt to decrease local cancer recurrence. However, this can cause a problem for both patients and their radiation oncologists.

Researchers at the Department of Radiation Oncology at Long Island Radiation Therapy in Garden City, N.Y., the Department of Surgery at Long Island Jewish Hospital in New Hyde Park, N.Y., the Department of Surgery at North Shore University Hospital in Manhasset, N.Y., and the Department of Surgery at Winthrop University Hospital in Mineola, N.Y., looked at whether the type of reconstruction performed in women receiving radiation after a mastectomy had an impact on their long-term outcomes.

Two general types of breast reconstruction are available for patients facing mastectomy for breast cancer: autologous tissue reconstruction utilizing the patient's own tissue (eg DIEP flap, GAP flap, TRAM flap, or latissimus flap) transferred to the chest to recreate the breast(s); and tissue expander/implant reconstruction which involves placement of an inflatable tissue expander (temporary saline implant) and exchange for a permanent implant (saline or silicone) at a separate procedure later on.

This study involved the largest reported series of patients who sequentially underwent mastectomy, immediate reconstruction and postmastectomy radiation therapy. Ninety-two patients were observed for a period of 38 months following breast reconstruction and radiation therapy.

Researchers found that autologous breast reconstruction is better tolerated by breast cancer patients because it is associated with fewer long-term complications and better cosmetic results than tissue expander/implant reconstruction.

None of the 23 patients reconstructed with their own tissue required further surgery while 33% of tissue expander/implant patients needed surgery to correct a problem with their reconstruction. Eighty-three percent of autologous reconstruction patients reported acceptable cosmetic results, as opposed to only 54% of implant patients.

"This study is useful for patients who are candidates for either [method of reconstruction] and are making a decision with regards to reconstruction technique," Jigna Jhaveri, M.D., lead author of the study and a radiation oncologist at Advanced Radiation Centers of New York in Hauppauge, N.Y., said. "Our study provides evidence that patients who undergo autologous tissue reconstruction and radiation therapy have fewer long term complications and better cosmetic outcomes than those who undergo tissue expander/implant reconstruction and radiation therapy."

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Here's my take....

While some plastic surgeons will disagree with this statement I strongly believe that breast implants and radiation therapy do not get along (at all). I feel the complication rate in implant-reconstructed women receiving radiation therapy is very high, particularly long-term. The handful of women that "do fine" in the short-term will very frequently end up with hard, uncomfortable breasts as the irradiated tissue firms-up over time and squeezes down on the implant. In my opinion the re-operation rate is too high for tissue expander/implant reconstruction to be offered as a routine option when radiation is on the table. This study confirms that breast reconstruction using the patient's own tissue is far safer than tissue expander/implant reconstruction in women facing radiation therapy after mastectomy.

Dr C

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Dr Chrysopoulo is a board certified plastic surgeon specializing in breast reconstruction surgery after mastectomy, particularly advanced perforator flap techniques such as the DIEP flap procedure. PRMA Plastic Surgery, San Antonio, Texas. Toll Free: (800) 692-5565. Keep up to date with the latest breast reconstruction news by following The Breast Cancer Reconstruction Blog.

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Tuesday, December 9, 2008

Breast Cancer Recurrence Not Related To Method Of Breast Reconstruction

One of my breast cancer patients called me today. She recently underwent bilateral mastectomies and immediate breast reconstruction with DIEP flaps. She recovered very well from the surgery but unfortunately her pathology results showed that she had cancer extending almost to the edge of the mastectomy specimen. The exact medical jargon used by the pathologist was.... "invasive carcinoma extending to 1mm from the margin". She also had DCIS (ductal carcinoma in situ) "extending to 0.2mm from the margin."

From a purist's perspective, these results still represent "clear margins". In other words, no tumor was found at the edge of the mastectomy specimen so there is no reason to believe there is any cancer left in my patient's breast. BUT, it's very close and that is certainly worrisome.

She called me today because she visited with her oncologist (cancer doc) and a radiation oncologist (cancer doc specializing in radiotherapy) and radiation therapy was recommended (in addition to the planned chemotherapy).

She explained to the radiation oncologist that she was worried the radiation therapy would ruin her DIEP flap reconstruction. She is right to be fearful of this - patients undergoing radiation therapy after an autologous reconstruction (ie a reconstruction using their own tissue) have a 28% risk of needing further surgery to correct asymmetry caused by the radiation changes (usually firming and shrinking) of the irradiated breast.

The response she received from the radiation oncologist baffled me (and is actually the reason behind this blogpost)...... "DIEP flap? What's a DIEP flap?.... if you'd had a TRAM flap then you wouldn't be needing radiation".

What?

This is a ridiculous statement. Let me clarify why...

This lady is being recommended radiation therapy as an insurance policy to decrease the risk of local recurrence (cancer coming back in the same breast). This is a consequence of her "near margins" which in turn are a result of the mastectomy specimen. Obviously the mastectomy was completed before the reconstruction was even started. If this lady had only had the mastectomy (without reconstruction) the margins would be the same. The breast reconstruction, and moreover, the type of breast reconstruction has absolutely nothing to do with it. The margins, the pathologist reading and the recommendation for radiation therapy would have been exactly the same whether reconstruction was performed or not.

So what's the take home message if you're considering breast reconstruction surgery? Choose whichever method of reconstruction is best for you. Your decision will not influence the likelihood of your cancer coming back in any way. The risk of cancer recurrence is related to the characteristics of the cancer itself and the mastectomy margins, not the method of reconstruction.

Dr C

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Dr Chrysopoulo is a board certified breast reconstruction surgeon specializing in DIEP flap breast reconstruction surgery. He and his partners perform over 350 DIEP flap procedures each year with a success rate of over 99%. PRMA Plastic Surgery, San Antonio, Texas. Toll Free: (800) 692-5565. Keep up to date with the latest breast reconstruction news by following Dr Chrysopoulo's Breast Cancer Reconstruction Blog.

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