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Method to prevent early and late relapses in breast cancer; possible collaboration with Sensors

Journal of Electrical Engineering and Electronic TechnologyISSN: 2325-9833

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Method to prevent early and late relapses in breast cancer; possible collaboration with Sensors

My colleagues and I were confronted in 1993 with an unexpected bimodal relapse pattern in breast cancer. Data showed that in patients treated only with surgery, 50 to 80% of all relapses occurred in an early sharp wave in the first 3 years post-surgery. We eventually determined that surgery to remove a primary tumor causes systemic inflammation for a week. During that time, dormant single malignant cells and avascular deposits escape from dormancy and appear as relapses within 3 years. The multi-national authors of our reports include medical oncologists, surgeons, anaesthesiologists, physicists, and other scientists. A solution seems to exist based on our analysis. That therapy is the common nonsteroidal anti-inflammatory drug (NSAID) analgesic ketorolac administered as iv at the time of surgery and perhaps orally for a few days after surgery. Three animal models and two retrospective clinical trials support our findings. All has been reported in a recent review. 

It was recently reported that a prospective trial of a different perioperative NSAID is planned in Japan to treat lung cancer (Sakamaki K, Watanabe K, Woo T, et al. Multicentre randomised phase II study of the perioperative administration of flurbiprofen axetil in patients with non-small cell lung cancer: study protocol of the FLAX Study. BMJ Open 2020;10:e040969. doi:10.1136/ bmjopen-2020-0409692).

Another paper suggests a way to prevent at least some late relapses. There are two situations where late relapses can be prevented. One is for planned surgery for cosmetic or health reasons. In that case the surgeon can make sure the patient is given the proper anti-inflammatory drug just before surgery. The other situation is for unplanned events such as after a sudden injury from a fall or a car accident. In that case it would be important to know the current level of systemic inflammation and patient medical history so a proper anti-inflammatory can be used. Timing is critical since it would be needed to treat within about two hours. A method to determine the level of systemic inflammation is needed without a blood draw. Perhaps someone from Sensors can help.

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