Katzarski KS, Nisell J, Bergstrom J
Relationship between blood volume and inferior cava diameter
during and after short and long hemodialysis
Am Soc Nephrol
J Am Soc Nephrol (abstract)
(Nov) 6:604 1995
The study measured blood volume and inferior vena caval (IVC)
diameter during and after a 3 hr dialysis session and during and
after a 6 hr dialysis session. BV was measured by an optical
hematocrit method and IVC diameter by ultrasound. In the 3-hour
sessions, an acceleration in the fall in BV was seen during the
last hour. There was also a rapid rebound in BV during the 2
hours after dialysis. The rebound in BV was larger after 3 hr
dialysis sessions than after 6 hr sessions. The changes in IVC
diameter were similar after the 3 and 6 hr dialyses.
Comment: The study is interesting in that it
documents a large rebound in BV after "short" dialysis. Because
the same amount of fluid was removed during the 3 and 6 hr
sessions by design, it is not surprising that IVC measurements
were not different 2 hr after the two different dialysis
sessions.
(Daugirdas)
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Am Soc Nephrol
Basic hemodialysis :
Complications (acute)