Laser therapy offers new weapon against deadly brain cancer

Laser therapy is proving to be an effective new treatment for deadly brain tumors, according to recent research. For patients diagnosed with glioblastoma, one of the most aggressive forms of brain cancer, traditional treatment options have often involved invasive open-skull surgery and a poor prognosis. Minimally invasive laser treatment, known as laser interstitial thermal therapy or LITT, has offered a safer alternative that can extend survival by several months.

A study led by researchers at Washington University School of Medicine in St. Louis analyzed patient outcomes and found that the extent of tumor removal during the procedure and the timing of treatment can further improve survival rates. Prof. Eric C. Leuthardt, the study's principal investigator, emphasizes that understanding these factors can help optimize patient care and improve the quality of life for those affected by brain tumors.

The analysis, which included 787 patients from 25 locations across the US, focused on glioblastoma and other brain tumors that were difficult or impossible to remove through conventional surgery. For patients with inoperable or recurrent tumors, the researchers discovered that the amount of tumor destroyed by the laser is a critical factor in determining survival.

Glioblastoma patients who had at least 91% of their tumor removed survived an average of 2.1 years from diagnosis, compared to approximately 1.5 years with standard open surgical resection.

For brain metastases, which are tumors that have spread from other parts of the body to the brain, the study found that earlier treatment with laser therapy when the tumors are still small can provide a survival advantage. This challenges the common practice of watching and waiting for tumors to grow before intervening, as earlier treatment may yield better outcomes.

The study also revealed that laser therapy is well-tolerated by patients, maintains their quality of life, and results in a shorter hospital stay compared to traditional surgery. Recovery is quick, and most patients avoid the need for intensive care and readmission. Additionally, laser treatment reduces the need for anti-seizure medication compared to the pre-surgery state.

These findings have the potential to significantly enhance clinical care for patients with brain tumors, offering a less risky procedure that allows them to return home sooner. As Leuthardt notes, this new approach is shifting the way brain tumors are managed, providing patients with a more favorable prognosis and improving their overall quality of life.