Hypercoagulable state in Cushing's syndrome is reversible following remission

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Hypercoagulability is a commonly described complication in patients with Cushing's syndrome (CS). The aim of this study was to assess the long-term effects of surgical remission from CS on serum levels of coagulation and fibrinolytic markers.

Design and methods

Eighteen patients with active CS (16 women, 2 men; age: 38·6 ± 13·7 years) were enrolled in the study. We measured serum levels of coagulation and fibrinolytic markers during active CS and 6 months after remission. The control group comprised 18 age- and sex-matched healthy individuals.


Six months after remission from CS, patients had lower levels of factors II (P < 0·001), V (P = 0·02), XI (P = 0·04) and XII (P < 0·001), protein C (P < 0·001), protein S (P = 0·002), antithrombin (P = 0·03), antithrombin Ag (P = 0·008), plasminogen (P = 0·03) and C1 inhibitor (P = 0·001), and aPTT was longer than at enrolment (P = 0·001). Levels of PAI-1 and factors VII, VIII and IX tended to normalize, but there were no significant differences in these parameters before and after surgery, nor were differences found in haemostatic and fibrinolytic markers between the patients in remission and control individuals, except for factor XII (P = 0·02) and protein C (P = 0·004), which were lower among patients in remission.


Six months after remission from CS, patients' risk of thromboembolism is comparable to that of healthy individuals.

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