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Coagulation screening before epidural analgesia in pre-eclampsia
1Department of Anaesthetics, University Hospital of Wales, Cardiff, UK.
Anaesthesia
|January 1, 1991
Summary
Routine coagulation screens for pre-eclamptic patients needing epidurals are not standardized. Significant abnormalities are rare, occurring only in severe pre-eclampsia, suggesting targeted platelet count testing.
Area of Science:
- Obstetrics and Gynecology
- Anesthesiology
- Hematology
Background:
- Current practice for coagulation screening in pre-eclamptic patients undergoing epidural procedures lacks standardization across UK obstetric units.
- A significant portion of UK deliveries were covered by the initial survey, highlighting the widespread nature of this practice variation.
Purpose of the Study:
- To investigate the utility and yield of routine coagulation screening in pre-eclamptic patients considered for epidural analgesia.
- To determine if current coagulation testing practices align with the actual incidence of coagulation abnormalities in this patient population.
Main Methods:
- Retrospective audit of 434 coagulation screens requested for pre-eclamptic patients.
- Analysis of coagulation parameters, including platelet counts, in relation to pre-eclampsia severity.
Main Results:
- Only 2% of patients exhibited borderline coagulation abnormalities.
- Thrombocytopenia (platelet count < 150 x 10(9)/litre) was present in 28% of cases.
- Significant thrombocytopenia (< 100 x 10(9)/litre) and all coagulation abnormalities were exclusively found in severe pre-eclampsia cases, often associated with reduced platelet counts.
Conclusions:
- Coagulation testing in pre-eclamptic patients undergoing epidural procedures should be restricted to cases of severe pre-eclampsia.
- For severe pre-eclampsia, initial coagulation assessment can be limited to a platelet count.
- This approach can streamline anesthetic practice and resource utilization.
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