Related Experiment Video

Updated: Oct 1, 2026

A Retrograde Implantation Approach for Peritoneal Dialysis Catheter Placement in Mice
06:27

A Retrograde Implantation Approach for Peritoneal Dialysis Catheter Placement in Mice

Published on: July 20, 2022

Prevalence of constipation in continuous ambulatory peritoneal dialysis patients and comparison with hemodialysis

Gen Yasuda1, Kazuhiko Shibata, Toshikazu Takizawa

  • 1Division of Nephrology, Second Department of Internal Medicine and Hygiene, Yokohama City University School of Medicine, Yokohama, Japan. y911429@urahp.yokohama-cu.ac.jp

American Journal of Kidney Diseases : the Official Journal of the National Kidney Foundation
|June 5, 2002
PubMed

Insights

Constipation is less common in continuous ambulatory peritoneal dialysis (CAPD) patients compared to hemodialysis patients. CAPD patients reported better bowel function, likely due to higher dietary fiber and potassium intake.

Area of Science:

  • Nephrology
  • Gastroenterology
  • Clinical Nutrition

Background:

  • Constipation is a prevalent issue among hemodialysis patients.
  • The prevalence of constipation in continuous ambulatory peritoneal dialysis (CAPD) patients remains under-evaluated.
  • Understanding constipation in different dialysis modalities is crucial for patient care.

Purpose of the Study:

  • To evaluate the frequency of constipation in CAPD patients.
  • To compare constipation rates between CAPD and hemodialysis patients.
  • To identify factors contributing to constipation differences in these patient groups.

Main Methods:

  • A questionnaire-based survey was administered to 204 CAPD and 268 hemodialysis patients.
  • Data collected included bowel habits, laxative use, and dietary intake (fiber, potassium).
  • Statistical analysis compared constipation prevalence and risk between the two groups.

Main Results:

  • Constipation occurred in 28.9% of CAPD patients versus 63.1% of hemodialysis patients.
  • Hemodialysis patients had a 3.14 times higher relative risk of constipation.
  • CAPD patients consumed significantly higher daily dietary fiber (11.0g vs 5.9g) and potassium (1.8g vs 1.3g).

Conclusions:

  • Constipation is significantly less frequent in CAPD patients compared to hemodialysis patients.
  • Higher dietary fiber intake and potentially lifestyle differences in CAPD may contribute to lower constipation rates.
  • These findings highlight the importance of dietary management in dialysis-related constipation.

Related Concept Videos

Peritoneal Dialysis II: Peritoneal Dialysis Systems and Complications01:25

Peritoneal Dialysis II: Peritoneal Dialysis Systems and Complications

Peritoneal dialysis (PD) is a medical process that removes waste products and excess fluid from the body using the peritoneal membrane as a natural filter.Peritoneal Dialysis MethodsSeveral methods can be used for peritoneal dialysis, including Acute Intermittent Peritoneal Dialysis, Continuous Ambulatory Peritoneal Dialysis, and Automated Peritoneal Dialysis, also known as Continuous Cyclic Peritoneal Dialysis.Acute Intermittent Peritoneal Dialysis (AIPD) is used for patients with uremic...
Peritoneal Dialysis I: Introduction and Procedure01:30

Peritoneal Dialysis I: Introduction and Procedure

Peritoneal dialysis (PD) is a procedure that facilitates the exchange of solutes, waste products, electrolytes, and excess fluid between the blood in the peritoneal capillaries and a dialysis solution introduced into the peritoneal cavity.Principles of Peritoneal Dialysis (PD)Diffusion: Waste products such as urea and electrolytes move from high concentrations in the blood to low concentrations in the dialysate across the peritoneal membrane. This mechanism is driven by the concentration...
Peritoneal Dialysis III: Nursing Management01:25

Peritoneal Dialysis III: Nursing Management

Peritoneal dialysis, or PD, utilizes the peritoneal membrane as a filter to eliminate excess fluid and waste products. Effective nursing management is essential for ensuring patient safety, preventing complications, and promoting optimal function of the peritoneal dialysis process.Assessment and MonitoringNurses must thoroughly assess the patient before, during, and after each dialysis session. Regular monitoring includes vital signs, daily weight, fluid intake and output, and laboratory values...
Hemodialysis III: Nursing Management01:25

Hemodialysis III: Nursing Management

The nursing management of a patient undergoing hemodialysis includes several critical steps, starting with a thorough assessment before the procedure.Before the Hemodialysis ProcedureFirst, record the patient's vital signs—blood pressure, heart rate, respiratory rate, and temperature—to establish a baseline. This baseline is essential for detecting conditions such as hypotension that could impact the patient's response to dialysis. Document the patient's pre-dialysis weight, as this measurement...
Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis01:30

Extracorporeal Removal of Drugs: Peritoneal Dialysis and Hemodialysis

Patients with end-stage renal disease (ESRD) or those experiencing drug overdose often require extracorporeal methods to eliminate accumulated drugs and metabolites. Hemoperfusion, hemofiltration, and dialysis are the primary techniques to rapidly remove harmful substances without disrupting the patient's fluid and electrolyte balance. For those with compromised renal function, dosage adjustments of concurrent medications may be necessary during extracorporeal drug removal.Dialysis is a process...
Hemodialysis II: Procedure and Complications01:24

Hemodialysis II: Procedure and Complications

DialyzersA hemodialysis (HD) dialyzer is a plastic cartridge containing thousands of parallel hollow fibers, which serve as semipermeable membranes. These fibers are typically made from cellulose-based or other synthetic materials. During HD, blood is pumped into the top of the cartridge and distributed among these fibers. Simultaneously, dialysis fluid, known as dialysate, is introduced into the bottom of the cartridge, bathing the outside of the fibers. Across the semipermeable membrane,...