Dr. John Sylvester completed both his Medical Degree and specialty training in Radiation Oncology at UCLA. He is board certified in Radiation Oncology by the American Board of Radiology. He was awarded the American Cancer Society Fellowship during his year as chief resident at UCLA.
He is a member of the American Brachytherapy Society (ABS), the American Society of Therapeutic Radiation Oncology (ASTRO), and the American College of Radiology (ACR).
Over the past two decades, Dr. Sylvester has performed over three thousand prostate brachytherapy procedures. He has developed, and assisted in the development, of several technical improvements in the procedure, including how to better visualize the urethra during the procedure and how to optimally utilize R.A.P.I.D. strand. He was the first physician in the U.S to use I125 Echo Seed, a more visible (on ultrasound) radioactive seed. He was the lead investigator in a gene therapy protocol for salvage of external beam radiation therapy failures. He helped develop the newest thinnest seed with GE-Oncura (ThinStrand). He has trained literally thousands of physicians in prostate cancer treatment.
Dr. Sylvester's work has led him to being called upon to present at national and international conferences on prostate cancer on a regular basis. Recently, he presented the 15-year Seattle results on external beam radiation therapy and radioactive seed implantation of the prostate, at the American Society of Clinical Oncology (ASCO) and the World Congress of Endourology. He presented the modern Seattle technique and outcomes data at the May 2009 American Brachytherapy Society (ABS) conference in Toronto.
Dr. Sylvester is also one of the three clinicians who wrote the most recent ABS guidelines used by prostate cancer Brachytherapists worldwide. He continues to lecture and lead prostate cancer panels at major medical meetings, such as the 2010 ABS Conference where he gave 9 talks while also moderating a session on prostate cancer.
He is the lead investigator in a Palladium dose de-escalation protocol for men with low risk prostate cancer. He has published numerous articles and medical textbook chapters on prostate brachytherapy and co-authored and edited The Prostate Cancer Treatment Book.