A prospective longitudinal surveillance for a period of 2 months. Sample - identify suitable Chronic Kidney Disease (CKD) patients who undergo HD with functioning AVF. Participants at various age range and both sexes are recruited to observe their access flow, access recirculation and cardiac function and assess their relationship.
All patients recruited who met the inclusion criteria were investigated access flow, access recirculation and cardiac function(including cardiac output,cardiac index,central blood volume,et al).Measurement time is the beginning of HD session (first 30min to 1 hr),Middle of HD session (optional),and the end of the HD session (1hr to 30 min prior to end of session). The follow-up duration is 6 months and 12 months.Repeat the assessment at the above time points.
Study Type
OBSERVATIONAL
Enrollment
100
The 1st Affiliated Hospital, Sun Yet-sen University
Guangzhou, Guangdong, China
to access the chang of the fistula blood flow in HD patients using Ultrasound Dilution method
Time frame: Change of the fistula blood flow from baseline to 6 months
Changes of the Cardiac Index (CI) during the course of hemodialysis therapy
Time frame: from baseline to 6 months
Changes of the Oxygen delivery ( Adequacy of hemoglobin level to Epoetin) during the course of hemodialysis therapy
Time frame: from baseline to 6 months
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