Sylvia De Vries was diagnosed with Stage III-C Ovarian Cancer in October 2003. She had major surgery to remove her cancer-infected reproductive organs and her appendix, followed by 6 rounds of Carboplatin Taxol chemotherapy. She went into remission until December 2009, and commenced Carboplatin Taxol chemotherapy once again for her metastases. After 3 failed treatments, she was put on 6 rounds of Calyx, then Gemzar, which ended up attacking her bone marrow, for which she had a hard time.

On August 2, 2010, her Canadian oncologist deemed her terminal and gave her approximately 2 months to live, but she and her husband were not prepared to accept that. Her husband began researching for other alternative cures and was impressed by the Issels Treatment. They also talked to another woman from Windsor, Ontario, who had experienced the treatment.

In October 14, 2010 Sylvia came to the Issels Treatment Center in a very frail state, in a wheelchair, and unable to walk. In her own words: "In less than 3 weeks I was able to walk 6 blocks to the ocean from here...The doctors are very caring, they're very aggressive with their treatment, they're very hands-on. You're not a number."

Her tumor marker Ca-125 was 141 when she started the Issels Treatment, and in less than 3 weeks it dropped down to 77.9. She feels stronger, more vibrant, and feel alive again. "I know I'm going to be healed. This is the place to be."