Peritoneal dialysis catheter insertion
General remarks
- The incidence of peritonitis has been markedly reduced, mainly because of the new connection systems
- Therefore the focus of attention is perceived to be shifting from peritonitis reduction to preventing exit-site infections (ESI)
- Prevention of ESI has 3 prerequisites; optimal catheter design, appropriate implatation technique and post operative care
- The overall survival probability of swan neck missouri catheters at 36 months is double when compared to standard catheters
- Most common cathetes failures are due to obstruction, peritonitis, exit site infection, and leaks (cuff extrusion)
- Double-cuff catheters are preferred over single-cuff catheters
- PD catheters peritoneoscopically placed have less incidence of complications (infection, exit site leak) and longer catheter survival rates than those inserted surgically
Step by step
- The patient is draped and the abdomen is exposed
- Draw catheter position and entry site
- Subumbilical incision, introduction of trocar and establishing pneumoperitoneum
- Intra abdominal laparoscopic inspection
- Paramedian incision and opening anterior rectus sheath
- Exposing posterior rectus sheath
- Place purse string suture in posterior rectus sheath
- Insert stilette in catheter and avoid rotation
- Opening peritoneum
- Leave about 1cm of catheter beyond tip of stilette to avoid bowel damage during introduction
- Insert catheter and check position
- Position catheter in Douglas’s pouch
- Partially retract stilette and enhance catheter position
- ntroduce bead into peritoneal cavity (laparoscopic guidance)
- Place flange flat on posterior rectus sheath
- Remove stilette
- Tie purse string securely between bead and flange
- Anchor flange with 4 sutures
- Create subcutaneous pocket for bent portion of catheter
- Tunnel catheter to exit site
- Suture anterior rectus fascia and avoid constricting catheter
- Attach connector and infuse sterile saline
- Final laparoscopic check of catheter position
- Release pneumoperitoneum and close subumbilical fascia
- Skin closure and check catheter function
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