Korean J Nephrol.
1999 Nov;18(6):959-964.
A Study on the About Timing of Arteriovenous Fistula Formation for Maintenance
Hemodialysis patients
Abstract
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The number of patients and long-term survival rates of chronic renal failure have been
increasing since the development of renal replacement therapy. Therefore, continuous
follow-up observation on an outpatient basis, vascular access for dialysis and the
determination of when to start dialysis have clinical significance associated with the
prognosis of these patients. Presently, there is little clinical data about chronic renal
failure patients such as, clinical features at initial dialysis, the presence or absence
of neph-rologist follow-up, and the types and timing of vas-cular access. The goal of this
study therefore was to investigate the clinical features at initial dialysis, presence or
absence of follow-up, types and timing of vascular access in 80 patients retrospectively.
The results are as below ; 1) The mean age of the patients was 47.8+/-14.0 years, and there
were 47 male and 33 female patients. 2) Seventeen patients(21.3%) had DM as an underlying
disease and 63 patients(78.79%) were non-diabetic patients. 3) At the initial dialysis,
the diabetic patients had an average BUN of 79.2 +/- 29.6mg/dl, average Cr of 7.82.0mg/dl
and an average Ccr of 10.0+/-7.0ml/min. The non-diabetic patients had the following averages
' BUN 118.7 +/- 37.9mg/dl, Cr 15.36.3mg/dl and Ccr 5.5 +/- 4.3ml/min. 4) The initial meeting with
a nephrologist prior to dialysis occured as follows : in the diabetic group,
13 patients(76.596) met their nephrologist 12 months before, 3 patients(17.6%) 1 month before,
one patient(5.9N) met the specialist one to 3 months before and no one had meeting 4 to
12 month before their dialysis. In the non-diabetic group, 36 patients(63.296) initially
visited a nephrologist 12 months before, 16 patients (28.1M) one month before,
3 patients(5.3%) one to 3 months before and 2 patients(3.5%) had a meeting 4 to 12 months
before the first dialysis. 5) The timing of native arteriovenous fistula for- mation was
as follows; In the diabetic group, 10 patients(66.7%) had an A-V fistula constructed
imme- diately upon admission, 2 patients(13.3%) had one constructed one to 3 months before,
2 patients(13.396) had one made 4 to 12 months before, one patient (6.7%) had a fistula
created one week to one month before, and no one had a fistula formed 12 months before
their initial dialysis. In the non-diabetic group, 36 patients(69.2%) had an A-V fistula
constructed on admission ll patients(21.2%), one week to one month before 2 patients(3.8%),
one to 3 rnonths before 2 patients(3.8%), 4 to 12 months before - one patient(1.9%) had the
fistula created 12 months before initial dialysis. From these results, we learned that the
time interval between either the patient's first meeting with his/her nephrologist or initial
referral for renal replacement and vascular access preparation for hemodialysis was much
longer than what is currently known. In conclusion, prompt referral to a nephro-logist early
in the course of the disease and proper education of the patient by the nephrologist can
lead to timely initiation of dialysis at a lower serum creatinine and higher Ccr levels
which will reduce mortality, morbidity, and hospital care cost.