Although HIFU is considered a minimally to non-invasive treatment, just like radiation therapy, there is a small risk to adjacent tissues, especially if the aim is even slightly off. This is a bigger risk with radiation, and fistulas are more common with radiation. My wife, a surgical RN sees this quite often. As we all know so well, the colon and rectum are in immediate contact with the prostate area, and it is possible that your colon received just enough heat to cause damage. However, as James pointed out, there are a number of other causes for fistulas. I made an appointment with my GI doc about two months after my surgery so that he could do a quick in office check and veryify everything was ok. You may have already been told all of this by your doc. I presume they told you what caused your fistula. Good luck!
first biopsy was in 1997. Neg. Dx BPH PSA 5.4
second biopsy in 2001 neg again PSA 9.8
passed blood Feb 08 3rd biopsy positive PSA 14.6 Gleason (3+3)=6
Pre op Xrays, CT scans, bone scans all neg
Da Vinci surgery 3/3/08 no complications, nodes clear
Significant post op discomfort for approx one week
Daily improvement 2nd week, near nornal mobility, etc 4th week
Filled pads every 2 hours for first month, gradually improved to not wearing pads after 2 months. Whoopee!
Occasional small leak when sneezing or farting, haha
Total loss of erectile function so far, some loss of rectal muscle function also.
Currently back to 100% physically, working out, etc.
Some lingering attitude issues over lack of function. Anger sometimes, moderate depression sometimes. Feel good physically but lingering changes in emotions. Joi da vie not the same. Feel lucky overall, but emotionally flat. A vague sense of loss, diminished pleasure in life. Hope to rebound as time goes by. Survived melanoma in 2000, pacemaker in 2002. Three time winner? Doesn't feel that way.