Evaluation of the Coagulation Profile Among Oral and Vaginal Combined Hormonal Contraceptive Users Using Sonoclot Coagulation Analyzer Academic Article uri icon

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  • Combined hormonal contraceptives possess an inherent risk of thrombus-related events. The purpose of this study is to elucidate alterations in the coagulation profile among young women using combined oral contraceptive (COC) or combined vaginal contraceptive (CVC) compared to a normal, healthy, female control group using the Sonoclot coagulation analyzer. We enrolled 159 participants (64 control individuals, 51 COC users, and 44 CVC users). Each participant completed a survey of medical history, family medical history, and lifestyle choices. Citrated venous whole blood was collected and analyzed using the Sonoclot coagulation analyzer. After adjusting for age, race, alcohol consumption, sleeping habits, and family history of cardiovascular disease, and stroke, we observed COC and CVC users had mostly similar coagulation profiles except when compared to the control, and COC and CVC users had an elevated glass bead peak signal while COC users had a shorter peak time.


  • Brandy, Kyle R
  • Meyer, Ralph
  • Luo, Xianghua
  • Rao, Gundu H
  • Datta, Yvonne H
  • Divani, Afshin A

publication date

  • November 2012