Ureter reimplant
Cohen Crosstrigonal technique
- Position supine, arms tucked, prep abdomen and genitals
- Pfannenstiel incision along Langer lines, incise down to fascia
- Separate fascia off underlying muscle
- Separate rectus muscles at linea alba almost to pubis, retract laterally with Denis Browne ring
- Place stitch on either side of midline incision, then make vertical cystotomy
- Pack bladder dome with moist raytec x3, retract edges superiorly and laterally
- Identify ureters at trigone, beware of ureteral duplication
- Place holding stitch past distal portion of ureteral orifice
- Incise mucosa with cautery (cut), ensure enough room around orifice for suturing
- Dissect away underlying tissue from ureter, obtain enough length that the ureter can reach the skin without tension
- Create the cross-trigonal tunnel with a right-angle retractor, grasp the ureteral retraction stitch and pull through the neohiatus
- Stitch the ureteral apex with 4-0 vicryl x1, then stitch in the rest of the ureter with 6-0 vicryl
- Close the mucosa over the dissection site with ***
- Remove the raytecs, close the bladder in two layers, start towards bladder neck, close one layer, then continue the same stitch on the outer layer
- Close the fascia with ***, scarpas with vicryl interrupted x3, and skin with subcuticular stitch, then apply dermabond
Ureteral trauma
Open repair technique
- Identify ends of ureter
- Debride injured tissue
- Place 2-0 stitch on each end for traction
- Spatulate to widen anastomosis
- Place wire through midpoint hole of stent, and place stent into proximal and distal ends
- Use 4-0 monocryl x2 to close in running fashion circumferentially
Postop care
- No set duration for stent, can leave for 3-6wk
- Usually no anastomotic test, just remove stent
- Check renal US 4-6wk after stent removal to confirm no residual obstruction
Bladder Augmentation
Ileocecoplasty technique
- Place patient supine with arms out, place in trendelenberg, do not need to hyperextend bed, give cefazolin + metronidazole for bowel coverage
- Tip: can place foley prior to prep/drape, but need accessible to fill bladder during case
- Make midline incision from pubic symphysis to slightly above umbilicus to access hepatic flexure, divide layers and enter peritoneal cavity
- Free up ascending colon from retroperitoneal attachments, can see kidney/duodenum underneath, free up to hepatic flexure
- Mark 10-15cm terminal ileum and 10-15cm cecum/ascending colon, identify mesenteric blood supply to ensure presence, can perform doppler and IC green before stapling
- Create mesenteric window with tonsil/bovie, then divide mesentery up to bowel with ligasure, then staple bowel
- Take bowel ends, create opening and staple together (ensure new conduit is inferior), then close the hole either with new staple load or 2-0 vicryl interrupted, can oversew with 2-0 silks
- Fill bladder with 200mL water, then open bladder at dome transversely, place traction 2-0 vicryl stitches on flaps for access
- Ensure cecum lays comfortably on bladder, then open antimesenteric end of cecum
- Open end of ileum, place 12Fr catheter, grasp redundant tissue with allis clamps, and staple off excess ileum (taper off towards ileocecal valve)
- Switch for 16Fr catheter, place plication (imbricating) sutures with 2-0 vicryl on antimesenteric side, checking that catheter pops in/out after tying each one down
- Secure cecum to bladder with 2-0 vicryl - place 3 stitches and run each one, try to have knots on outside of bladder
- Place drain - make separate stab incision, then push tonsil clamp from skin into abdomen, grasp drain and pull through, secure with nylon stitch
- Cut out circle on skin at ideal channel site, remove underlying subcutaneous fat (expose with army/navy retractors), create small cruciate incision on fascia, should be large enough to allow one finger through
- Insert babcock clamp through channel incision into abdomen, grasp channel and bring out through skin, stitch to skin with 3-0 vicryl (do not stitch mesentery), make sure balloon is inflated, should have either separate suprapubic or urethral foley as safety valve
- Closure - #1 PDS x2 (meet in middle) for fascia, then 3-0 vicryl to bring subcutaneous tissue together and staples for skin
Cystotomy repair
Repair steps
- Identify cystotomy - can make anterior cystotomy to find posterior cystotomy
- Can place full-thickness traction sutures to help with visualization
- Run mucosal 2-0 vicryl to close bladder
- Run serosal/detrusor 2-0 vicryl to close outer bladder layer
- Leak test via catheter with 120mL (or more) to ensure no leaks
- Can consider placing drain at repair site
Postop care
- No required foley duration, can consider 1-4 weeks
- Cystogram recommended prior to catheter removal to confirm no residual leaks