Background The contact system (CAS) is part of the coagulation system, consisting of a
group of plasma proteins stimulating inflammation, coagulation, and fibrinolysis when …

Objective To study the fibrinolytic pathways and their relationship with the contact system in
women using combined oral contraceptives (COCs). Design Serial plasma samples were …

Objectives Venous thromboembolism (VTE) risk increases within months of combination oral
contraceptive (COC) initiation. Because elevated endogenous thrombin potential (ETP) has …

Hemostasis in women is influenced by physiological changes in hormone status associated
with the menstrual cycle, pregnancy and hormone-based contraceptives, and hormone …

BACKGROUND: The study was conducted to determine the impact of switching from oral to
transdermal patch or vaginal ring contraception on biomarkers of thrombosis. STUDY …

The plasma levels of contact activation factors were measured in women using a low
estrogen dose oral contraceptive (OC). Basic values for factor XII (FXII), factor XI (FXI) …

Background and objectives The effect of oral contraceptive (OC) usage on coagulation has
been studied worldwide. However, no such studies have been conducted in Saudi Arabia …

The plasma levels of FXII, prekallikrein (PK) and high-and low molecular weight kininogens
(HK and LK) were measured in women on low estrogen dose (30–40 μg ethinylestradiol) …

In order to compare the effect of combined oral contraceptive (COC) and combined vaginal
contraceptive (CVC) methods on the inflammation and procoagulation, we recruited female …

Introduction The increased thrombotic risk of oral contraceptives (OC) has been attributed to
various alterations of the hemostatic system, including acquired resistance to activated …