Like the Partin tables, the Han tables, developed by Misop Han, MD (see right) and colleagues at Johns Hopkins, are also based on data from the thousands of patients receiving “nerve-sparing” open radical retropubic prostatectomies at the hands of Patrick Walsh, MD.
While the Partin tables are designed to inform patients and their doctors about the probability of occurrence of specific pathological stages after surgery based on presurgical data, the Han tables are designed to inform patients and their doctors about the probability of post-surgical biochemical disease recurrence (a rising PSA) at specific points in time based on one of two sets of data:
- The pre-surgical data available before the patient is actually treated and
- The post-surgical data available after the radical prostatectomy is complete.
In other words, the Han tables allow a patient and his doctor to calculate the probablity of a rising PSA at 3, 5, 7, and 10 years after surgery either before the operation is done or immediately after the operation is complete (or of course both).
Full details about the derivation of the Han tables, together with two “plug and pay” calculators are provided on the Johns Hopkins web site. If you want to use the calculators, follow the instructions below:
- Men who are considering surgery for prostate cancer, but have not had surgery yet, need to use the preoperative model calculator, and will need to know their clinical stage, their PSA, and their biopsy-based Gleason score (i.e., the same data as is needed to use the Partin tables).
- Men who have had surgery for prostate cancer need to use the postoperative model calculator, and will need to know their pathological stage, their pre-surgical PSA, and their post-surgical Gleason score.
The Han tables can be used in conjunction with the Kattan nomograms and the Partin tables to get a very good idea of the probabilities of certain types of outcome after surgery compared to one’s available diagnostic information available before surgery and one’s pathological information after surgery.