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Study of Peritoneal/Bowel Morphology and Splanchnic Hemodynamics by Sonography, Doppler Ultrasound and Computed Tomography in CAPD Patients

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00821405
Recruitment Status : Unknown
Verified January 2009 by National Taiwan University Hospital.
Recruitment status was:  Not yet recruiting
First Posted : January 13, 2009
Last Update Posted : January 13, 2009
Information provided by:
National Taiwan University Hospital

Brief Summary:
Use ultrasound and computed tomography to evaluate the condition of peritoneum(thickness, calcified, etc. )and correlate the relationship between the peritoneum and other clinical condition

Condition or disease
Peritoneum Calcification Bowel Wall Calcification

Detailed Description:

The peritoneum after long-term peritoneal dialysis is inevitably associated with fibrosis, which further compromises the efficiency of dialysis and ultrafiltration, or even worse the development of encapsulating sclerosing peritonitis (EPS) and mortality. Transabdominal ultrasonography and computed tomography has been reported in the diagnosis of EPS. Until now, it remains a critical clinical issue to early diagnose thickening of peritoneum and preventing the formation of EPS. Transabdominal ultrasonography and computed tomography are convenient and non-invasive, and has been reported to detect the thickening of peritoneum in pediatric PD patients with a history of peritonitis.

Our recent published study confirmed the utility of transabdominal ultrasonography in the evaluation of parietal peritoneum in adult PD patients. In previous work, we examined and compared eighteen adult PD patients with PD duration of more than 7 years with other eighteen adult PD patients wit PD duration of less than 1 year. Our results indicated that sonographic thickness is associated with PD peritoneal transport characteristics but not with the duration of PD. This work was just published in Nephrology, Dialysis and Transplantation in year 2008. We believe that was the earliest published ultrasonographic study in adult PD patients.

This proposed study aims to extend from previous study by increasing examinee population to include all adult PD patients as a cross sectional observational study. We will utilize previously published sonographic examination method on PD patients (both B-mode and Doppler ultrasonography). We will collect the blood, urine and peritoneal effluent sample at the same time. We hope that through this large-scale survey we can elucidate more clearly the relationship between morphology and functional/transport characteristics of the parietal peritoneum during the natural course of renal replacement therapy with peritoneal dialysis. The results will form our basis of future longitudinal serial follow-ups for the adult PD patients. Besides, for those PD patients with suspected peritonitis, we will also perform non-invasive ultrasonographic examinations and collect relevant samples on the initial days of hospitalization in order to establish an "early predicting model" of severe, medical-refractory peritonitis by using transabdominal ultrasonography.

Peritoneum and bowel wall calcifications are found frequently in EPS, and although while pre-EPS stage. This study will utilize computed tomography to detect peritoneum and bowel calcifications in PD patients. We hope to found the relationship between calcification, peritoneum function, peritonitis frequency and future possibility of EPS.

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Study Type : Observational
Estimated Enrollment : 300 participants
Observational Model: Cohort
Time Perspective: Cross-Sectional
Study Start Date : March 2009
Estimated Primary Completion Date : September 2009
Estimated Study Completion Date : March 2010

Resource links provided by the National Library of Medicine

MedlinePlus related topics: Minerals

peritoneal dialysis
peritoneal dialysis patient lasting for more than 3 months

Primary Outcome Measures :
  1. peritoneal thickness, calcification, PET, glucose loading [ Time Frame: 12 months ]

Information from the National Library of Medicine

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Ages Eligible for Study:   15 Years to 90 Years   (Child, Adult, Older Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   No
Sampling Method:   Probability Sample
Study Population
Patients received peritoenal dialysis more than 3 months

Inclusion Criteria:

  • peritoneal dialysis more than 3 months

Exclusion Criteria:

  • 1. pregnancy 2. received CT in recent 3 months

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00821405

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Contact: Jenq-Wen Huang, MD +886-2-23123456 ext 63288

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National Taiwan University Hospital
Taipei, Taiwan, 100
Contact: Jenq-Wen Huang, MD    +886-2-23123456 ext 63288   
Sponsors and Collaborators
National Taiwan University Hospital
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Responsible Party: Jenq-Wen Huang, National Taiwan University Hospital Identifier: NCT00821405    
Other Study ID Numbers: 200808062R
First Posted: January 13, 2009    Key Record Dates
Last Update Posted: January 13, 2009
Last Verified: January 2009
Keywords provided by National Taiwan University Hospital:
Number : 250~300 patients
Correlation between PET, glucose loading and peritoneal thickness/calcification
Additional relevant MeSH terms:
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Calcium Metabolism Disorders
Metabolic Diseases