Peritoneal Dialysis — Home Dialysis Option
Peritoneal dialysis (PD) is a home-based dialysis treatment that uses the lining of your abdomen (peritoneum) as a natural filter to clean your blood. A special dialysis fluid is introduced into the abdominal cavity through a catheter, where it absorbs waste products and excess fluid from the blood vessels in the peritoneum. After a dwell period, the fluid is drained and replaced with fresh solution. PD offers flexibility and independence compared to centre-based hemodialysis.
Types of Peritoneal Dialysis
CAPD (Continuous Ambulatory PD)
Manual exchanges done 4-5 times per day. You carry the fluid in a袋 and perform exchanges wherever you are — at home, work, or while travelling. No machine required.
APD (Automated PD)
A machine (cycler) performs exchanges while you sleep at night. You are free during the day. Typically 4-6 cycles over 8-10 hours. Requires a cycler machine at home.
How Does PD Work?
Step 1: Drain
The used dialysis fluid (which has absorbed waste) drains out of your abdomen through the PD catheter into a drainage bag.
Step 2: Fill
Fresh dialysis fluid flows from a sterile bag into your abdomen. The solution contains dextrose (sugar) that creates an osmotic gradient to pull waste and fluid from blood into the peritoneal cavity.
Step 3: Dwell
The fluid stays in your abdomen for 4-6 hours (CAPD) or 1-2 hours per cycle (APD). During this time, waste products and excess fluid diffuse from the blood into the dialysis fluid.
PD Catheter Placement
A soft, flexible tube (Tenckhoff catheter) is surgically placed into your abdomen. The procedure is done under local or general anaesthesia, usually laparoscopically. Key details:
- Small incision near the navel or lower abdomen
- Catheter tip placed deep in the pelvis for optimal drainage
- Exit site is usually below the belt line for comfort and concealment
- Healing period of 2-4 weeks before starting PD
- Regular catheter care prevents infection (peritonitis)
Advantages Over Hemodialysis
Who is a Candidate for PD?
PD may be suitable if you:
- Prefer home-based treatment over centre-based dialysis
- Have a functioning peritoneal catheter
- Can perform or have help with daily exchanges
- Have adequate abdominal space (no major surgeries planned)
- Want to preserve residual kidney function longer
- Are a candidate for kidney transplant in the future (PD preserves options)
Lifestyle on PD
PD allows you to maintain a near-normal lifestyle. You can travel with supplies, continue working, and manage dialysis around your schedule. However, you must maintain strict hygiene during exchanges to prevent peritonitis. Regular follow-up with your nephrologist, catheter site care, and monitoring for signs of infection (cloudy effluent, fever, abdominal pain) are essential for long-term success on PD.
Discuss Peritoneal Dialysis Options
Dr. Rajesh Goel can evaluate whether peritoneal dialysis is the right choice for you. He provides complete PD training, catheter management, and ongoing support.