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Abstract
Purpose
The aim of this study was to investigate whether laboratory findings on arrival may be useful in predicting the outcome of out-of-hospital cardiopulmonary arrest (CPA).
Methods
Between January 2005 and September 2007, a medical chart review was retrospectively performed for CPA. The individual medical records were reviewed for the following data: background of CPA, arterial blood gas, cell blood count, serum biochemical, and cerebral performance category (CPC) 1 month after the CPA. The subjects were divided into patients with a CPC ranging from 3 to 5 (CPC 3-5 group) and from 1 to 2 (CPC 1-2 group).
Findings
The total protein, platelets, pH, and Po2 in the CPC 1-2 group tended be higher than those in the CPC 3-5 group. The Pco2, potassium, phosphorus, and ammonia in the CPC 1-2 group tended be lower than those in the CPC 3-5 group. However, there were no factors independently associated with the outcome by multivariate analysis.
Conclusion
Some of the biochemical-hematologic parameters demonstrate significant changes concerning the outcome. However, initial blood work cannot be used to make clinical decisions because there are no factors independently associated with the outcome.
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