UTI Staphylococcus haemolyticus

I'm a 46 year old male and was diagnosed as having a UTI with the specific bacteria being Staphylococcus haemolyticus. I was prescribed SMX-TMP (Bactrin) for 10 days. I didn't really have any UTI symptoms but I went in for another condition and the urologist wanted to do a urine analysis and the infection was discovered. My worry is that I've read up on this bacteria and it seems to be quite adept at acquiring drug resistance. Also the potential side effects of the antibiotic are kind of scary.

I guess my question should I be worried about a worsening infection? What are the chances that if the antibiotic doesn't work that this could progress to a kidney infection or sepsis? Also I was diagnosed a year ago with a slightly elevated uric acid level in my blood and a small kidney stone which I read can cause recurring UTIs. I informed the urologist but didn't receive a response. Should the kidney stone be treated somehow?

[Stephen Liroff, MD]

Sorry to hear of your infection. Once treated you need to have a work-up to determine the cause. This will probably consist of studying your kidneys and bladder with x-rays  or ultrasound and possibly a look inside your bladder.
Certainly you should take the antibiotic prescribed. It is one of the most commonly used ones in urology. Yes, there are possible problems with it just as there are with any drug, but not especially so. The chances are that resistance will not develop in the short period that  you shall be taking the medicine The chances that this infection will lead to sepsis are small. There may be a relationship between your kidney stone and the infection. The decision to remove the stone after the infection has been treated would be based upon recurrence of the uti with the same bacteria, or proving that the urine from that side is infected. If the stone is not treated now, then it does need to be observed for growth.. Sometimes it is just easier to get rid of the stone than continue with observation indefinitely.
S.A.Liroff, M.D.

[raihan]

A related discussion, Urinary tract infections, bladder outlet obstruction & urogical problems was started.