General HIFU Questions:
- Presence of significant (>10mm) fluid-filled cavities (for example, cysts), large reflective surfaces (for example, significant calcifications >10mm, urethral stent) observed in the planned ablation zone. Varying attenuation among these tissues may cause an unpredictable size of lesion.
- Metal implants or stents in the urethra, within the area to be ablated
- Presence of brachytherapy seeds adjacent to the posterior prostate capsule, the Denonvilliers’ fascia, or the rectal wall
- Preexisting inflammatory disease of the colon or rectum; including proctitis, ulcerative colitis
- Prior significant rectal surgery
- Inability to insert or tolerate a transrectal ultrasound probe
- Active urinary tract infection
- Urethral stricture
- Latex allergy. Note: Ablation with Sonablate requires that the transrectal probe be covered with a sheath prior to insertion, and the sheath provided for use is made from natural rubber latex. For those patients who are allergic to latex, a non-latex ultrasound probe sheath is available as an option; please contact your distributor or SonaCare Medical.
Use of Nitrous Oxide should be AVOIDED
General anesthesia is typically used, but spinal with conscious sedation is an option. The key is that the patient cannot move during the procedure.
- 2-3 hours in recovery at the surgery center/hospital
- Patient able to return to normal activities within 1-2 days
- Catheter in place for 5-21 days