Title: Partial Thromboplastin Time as a Predictor of Blood Loss in Oral Surgery Patients Receiving Coumarin Anticoagulants
Abstract: Blood loss after dental extractions was quantitated in 13 patients receiving therapeutic levels of coumarin anticoagulants and 7 control patients. Eleven of the 13 patients receiving anticoagulants had the prothrombin time maintained in the therapeutic range and a normal partial thromboplastin time. These patients did not lose significantly more blood than the control patients. The two other patients treated with anticoagulants had prothrombin times maintained in the therapeutic range but had prolonged partial thromboplastin times. These patients had significantly higher levels of blood loss than the others. These preliminary results suggest that patients taking coumarin anticoagulants should have both a prothrombin time and a partial thromboplastin time evaluation just before surgery to help predict the chances of severe postextraction bleeding. Blood loss after dental extractions was quantitated in 13 patients receiving therapeutic levels of coumarin anticoagulants and 7 control patients. Eleven of the 13 patients receiving anticoagulants had the prothrombin time maintained in the therapeutic range and a normal partial thromboplastin time. These patients did not lose significantly more blood than the control patients. The two other patients treated with anticoagulants had prothrombin times maintained in the therapeutic range but had prolonged partial thromboplastin times. These patients had significantly higher levels of blood loss than the others. These preliminary results suggest that patients taking coumarin anticoagulants should have both a prothrombin time and a partial thromboplastin time evaluation just before surgery to help predict the chances of severe postextraction bleeding.
Publication Year: 1972
Publication Date: 1972-03-01
Language: en
Type: article
Indexed In: ['crossref', 'pubmed']
Access and Citation
Cited By Count: 19
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