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Ann Intern Med. 1995 Jul 1;123(1):35-7.

Increased nitric oxide production in patients with hypotension during hemodialysis.

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  • 1Osaka City University Medical School, Japan.

Abstract

OBJECTIVE:

To determine the involvement of nitric oxide production in hemodialysis-induced hypotension.

DESIGN:

Examination of nitric oxide synthesis, cyclic guanosine 3'5'-monophosphate (cGMP) levels, and endothelin-1 levels in plasma before and after hemodialysis.

SETTING:

Veterans Affairs medical center.

PATIENTS:

13 patients with end-stage renal failure who were receiving hemodialysis: Six patients had hypotensive episodes during dialysis and 7 did not.

INTERVENTION:

Patients received heparin at a bolus dose of 2000 U at the initiation of dialysis followed by 1000 U/h during 4-hour hemodialysis sessions.

RESULTS:

Nitric oxide production markedly increased during hemodialysis-induced hypotensive episodes; this increase was not seen in patients who did not have a hypotensive episode. In both groups, the plasma cGMP and endothelin-1 levels decreased after hemodialysis. According to multiple regression analysis, standard coefficients of nitric oxide production, plasma cGMP levels, and endothelin-1 levels with mean blood pressure after hemodialysis were -0.743, -0.07, and 0.31, respectively.

CONCLUSION:

Nitric oxide production increased in patients who had a hypotensive episode during hemodialysis but did not increase in those who did not have a hypotensive episode.

Comment in

PMID:
7762912
[PubMed - indexed for MEDLINE]
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