A small amount can make a difference: a prospective human study of the paradoxical coagulation characteristics of hemothorax.
Am J Surg
; 206(6): 904-9; discussion 909-10, 2013 Dec.
Article
em En
| MEDLINE
| ID: mdl-24296097
ABSTRACT
BACKGROUND:
The evacuated hemothorax has been poorly described because it varies with time, it has been found to be incoagulable, and its potential effect on the coagulation cascade during autotransfusion is largely unknown.METHODS:
This is a prospective descriptive study of adult patients with traumatic chest injury necessitating tube thoracostomy. Pleural and venous samples were analyzed for coagulation, hematology, and electrolytes at 1 to 4 hours after drainage. Pleural samples were also analyzed for their effect on the coagulation cascade via mixing studies.RESULTS:
Thirty-four subjects were enrolled with a traumatic hemothorax. The following measured coagulation factors were significantly depleted compared with venous blood international normalized ratio (>9 vs 1.1) (P < .001) and activated partial thromboplastin time (aPTT) (>180 vs 24.5 seconds) (P < .001). Mixing studies showed a dose-dependent increase in coagulation dilutions through 18 (P < .05).CONCLUSIONS:
An evacuated hemothorax does not vary in composition significantly with time and is incoagulable alone. Mixing studies with hemothorax plasma increased coagulation, raising safety concerns.Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Traumatismos Torácicos
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Coagulação Sanguínea
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Transfusão de Sangue Autóloga
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Toracotomia
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Drenagem
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Hemotórax
Tipo de estudo:
Etiology_studies
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Observational_studies
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Prognostic_studies
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Risk_factors_studies
Limite:
Adult
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Female
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Humans
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Male
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Middle aged
Idioma:
En
Revista:
Am J Surg
Ano de publicação:
2013
Tipo de documento:
Article