What Happens if PSA Comes Back After Surgery?
Preserving Lives, Improving Lives, Teaching Others
The return of PSA is a possibility that strikes terror in the heart of every radical prostatectomy patient; in fact, for many men, the dreaded follow-up PSA tests after surgery are almost worse than having the operation itself. What will you do if your PSA is no longer undetectable? The good news is, you may not need to do anything for years. |
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In a landmark paper -- the largest, most complete study of the return of PSA after radical prostatectomy -- Hopkins doctors have developed guidelines to help patients and doctors know what to do if PSA comes back. Their remarkable effort -- an elegantly simple chart that accurately predicts a man's risk of developing metastatic cancer -- is the post-operative equivalent of the "Partin tables," developed by urologist Alan W. Partin, M.D., and urologist-in-chief Patrick C. Walsh, M.D. Like those now-indispensable tables, this chart has the potential to revolutionize the way doctors and patients make decisions about what to do next.
Until now, there has been no way to tell. The study, published in the Journal of the American Medical Association, is based on 10,000 patient-years of follow-up data. Between 1982 and 1997, nearly 2,000 men underwent a radical prostatectorny at Johns Hopkins. Of these, 315 men developed an elevated PSA (defined as being higher than 0.2 nanograms/milliliter). Eleven of these men opted for early hormone therapy, and were not included in the study. The remaining 304 men were followed carefully. |
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"We set out to ask a few questions, says Walsh: "Could we predict how long it would take for patients who had metastases to show them on a bone scan, and then once that happened, how long would they live? The news is actually quite good: Most patients do very well for a long period of time". On average, it took eight years from the time a man's PSA first went up until he developed metastatic disease -- which suggests, Walsh says, that "there is no need to panic" at the first sign of a rise in PSA. Even after developing metastatic cancer (detected by bone scans and other imaging techniques), men still lived an average of five years -- and if the metastases showed up more than seven years after surgery, men had a seventy percent chance of being alive seven years later. "When men see their PSA levels rise again, they think that means the cancer is back and they need to get treated right away," says oncologist Mario Eisenberger, M.D., a co-author of the study. "But men often live for years without having the cancer spread. This information will better equip doctors and their patients to decide what treatment -- if any -- is most appropriate."
Using these criteria, men and their doctors can pinpoint the likelihood of developing metastatic disease. For example: If a man has Gleason 7 disease, has his first PSA recurrence more than two years after surgery, and has a PSA doubling time longer than 10 months, his likelihood of being, free of metastasis at seven years is 82 percent. Conversely, if a man has Gleason 7 disease, but his PSA goes up within two years of surgery, and the time it takes PSA to double is less than 10 months, his likelihood of being metastasis-free at seven years is 15 percent. "So the first thing these tables can do is reassure the many patients who are going to have a long-term, symptom-free, metastasis-free interval, that close observation is all that's really necessary," says Walsh. On the other hand, says urologist Alan W. Partin, M.D., Ph.D., co-author of the study: "If their chances of progressing rapidly are high, they may wish to start hormonal therapy earlier or get involved in an experimental trial" of more aggressive treatment. "These tables are going to help men who are at low risk and help men at high risk make a more educated decision. We hope it will also decrease the anxiety for some of them." The tables will also provide invaluable baseline data for future drug research, adds Partin. "Until now, it's been difficult to know if a drug was helping someone, because you couldn't be sure what the disease would have done on its own. Now, researchers can compare their treatment groups with our study group and tell if their treatment is improving survival." |
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FURTHER READING Pound, CP; Partin, AW; Einsenberger, MA; Chan, DW; Pearson, JD; and Walsh,PC. "New Method to Assess Risk of Advanced Cancer After Prostate Removal," Journal of the American Medical Association, Vol.281, pp.1591-1597. |