Hypervolumetric hemodilution with HES 100/0.5 10% in patients with peripheral arterial occlusive disease (Fontaine, stage II): an open clinical and pharmacological phase IV study.

TL;DRAbstract

The efficacy of three weekly interventions with hypervolumetric hemodilution of a new preparation of hydroxyethyl starch (HES 100/0.5, 10%, C2/C6 substitution ratio of 6.5) on pain-free walking distance of patients with peripheral arterial occlusive disease (PAOD) stage IIb on the Fontaine classification was investigated. In addition quantitative data on the pharmacokinetic properties of this HES preparation, and it's impact on hemorheology, hemostasis and homeostasis were shown. Ten patients were included according to a predefined protocol, and treated openly with 500 ml HES 100/0.5 10% on nine occasions over 18 days. Pain-free walking distance, the main outcome measure, showed a mean increase of 82 m (+60%). Hematocrit decreased 4 percentage points on average (5.5 percentage points one hour after interventions). Plasma viscosity dropped 5% on average with significant changes immediately after interventions only in patients whose baseline values had been equal to or above the 2 s refe

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