Active surveillance

Active surveillance (AS) is a management option for localized prostate cancer that can be offered to appropriate patients who would also be candidates for aggressive local therapies (surgery and radiotherapy), with the intent to intervene if the disease progresses. This distinguishes AS from watchful waiting, another observational strategy for men...
Found on http://en.wikipedia.org/wiki/Active_surveillance

active surveillance

Closely watching a patient
Found on http://www.cancer.gov/dictionary?expand=A
No exact match found