What is the prognosis of chronic bacterial prostatitis (CBP)?

Updated: Jan 15, 2019
  • Author: Samantha D Kraemer, MD; Chief Editor: Edward David Kim, MD, FACS  more...
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Answer

Treatment success rates with the administration of trimethoprim-sulfamethoxazole (TMP-SMZ) approach 30%-40%, while success rates with fluoroquinolones are 40%-75%. Relapses are common and can be treated with another course of antibiotics. If repeat treatment fails, consider a low, suppressive dose of antibiotics.

Infection often persists because antibiotics do not penetrate the prostate easily and no active transport mechanism exists whereby antibiotics can enter the prostatic ducts. Another inhibiting factor is that prostatic fluid is acidic compared with plasma, thus creating a pH gradient that further inhibits diffusion of acidic antibiotics into the prostatic fluid.


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