Vascular access monitoring evaluated from automated recirculation measurement.
EDTNA ERCA J
; 27(1): 17-22, 2001.
Article
in En
| MEDLINE
| ID: mdl-12603068
Vascular access quality monitoring by means of vascular access blood flow (QVA) evaluated from automated thermodilutional measurement of recirculation with reverse needle position is described. This method provides significant advantages over conventional methods based on simple monitoring of pressures in the extracorporeal circuit and/or measurement of recirculation with normal needle position. AQVA evaluation protocol was developed and introduced into the system of primary nursing. The QVA values were found independent of the extracorporeal blood flow used during the recirculation measurement. QVA values from below 200 ml/min to over 2 l/min were seen. In general, lower values were found in diabetics compared to non-diabetics and in females compared to males. While blood flow below 600 ml/min is considered risky for synthetic vascular grafts, native AV-fistulae seem to remain stable and patent at a flow of 400 ml/min or even below. The method is able to detect erroneous needle placement in looped grafts, stenosis between needles, and is also well suited for effective evaluation of success/failure of interventions on access.
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Collection:
01-internacional
Database:
MEDLINE
Main subject:
Automation
/
Thermodilution
/
Catheters, Indwelling
/
Renal Dialysis
Type of study:
Evaluation_studies
Limits:
Female
/
Humans
/
Male
Language:
En
Journal:
EDTNA ERCA J
Journal subject:
ENFERMAGEM
/
NEFROLOGIA
Year:
2001
Document type:
Article
Affiliation country:
Czech Republic
Country of publication:
Belgium