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Intensive Care Medicine

, Volume 22, Issue 10, pp 1075–1081 | Cite as

Influence of different volume therapies on platelet function in the critically ill

  • J. Boldt
  • M. Müller
  • M. Heesen
  • O. Heyn
  • G. Hempelmann
Original

Abstract

Objective

Both albumin and synthetic colloids such as hydroxyethyl starch (HES) solution are used to optimize hemodynamics in the critically ill. The influence of different long-term infusion regimes on platelet function was studied.

Design

Prospective, randomized study.

Setting

Clinical investigation on a university hospital surgical intensive care unit.

Patients

Twenty-eight consecutive trauma patients (injury severity score>15 points) and 28 consecutive nontraumatized surgical patients with sepsis.

Interventions

The patients received either 20% human albumin (HA trauma,n=14; HA sepsis,n=14) or 10% low-molecular-weight HES solution HES 200/0.5 (HES trauma,n=14; HES sepsis;n=14) for 5 days to maintain central venous pressure and/or pulmonary capillary wedge pressure between 12 and 16 mmHg.

Measurements and results

Platelet function was assessed by aggregometry (=turbidimetric technique) using adenosine diphosphate 2.0 μmol/l, collagen 4 μl/ml, and epinephrine 25 μmol/l as inductors. Arterial blood was sampled on the day of admission or the day of diagnosis of sepsis (=baseline value) and over the next 5 days. Standard coagulation parameters (antithrombin III, fibrinogen, partial thromboplastin time) were also measured. Total use of HES by the 5th day totalled 4870±990 ml in the trauma and 3260±790 ml in the sepsis patients (HA trauma: 1850±380 ml; HA sepsis: 1790±400 ml). Maximum platelet aggregation decreased significantly during the first 2–3 days after baseline in all groups. At the end of the investigation period, platelet aggregation variables had recovered and reached (or even exceeded) baseline values. Within the entire investigation period, the course of platelet aggregation variables did not differ significantly between HA and HES-treated patients irrespective of whether they were trauma or sepsis patients.

Conclusions

Alterations in hemostasis may occur for several reasons in the critically ill. Human albumin is the preferred first-line volume therapy in patients at risk for coagulation disorders. With respect to platelet function, volume replacement with (lower-priced) low-molecular-weight HES solutions can be recommended in this situation without any risk.

Key words

Critically ill Sepsis Trauma Volume therapy Platelet function Aggregometry Hydroxyethyl starch solution Albumin 

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Copyright information

© Springer-Verlag 1996

Authors and Affiliations

  • J. Boldt
    • 1
  • M. Müller
    • 1
  • M. Heesen
    • 1
  • O. Heyn
    • 1
  • G. Hempelmann
    • 1
  1. 1.Department of Anesthesiology and Intensive Care MedicineJustus-Liebig-University GiessenGiessenGermany

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