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A risk score for prediction of venous thromboembolism in gynecologic cancer: The Thrombogyn score.Norris, Lucy A; Ward, Mark P; O'Toole, Sharon A; Marchocki, Zibi; Ibrahim, Nadia; Khashan, Ali S; Abu Saadeh, Feras; Gleeson, Noreen (2020-05-28)Background: Gynecologic cancers are associated with high rates of venous thromboembolism (VTE), which is exacerbated by pelvic surgery and chemotherapy. Objectives: The aim of this study was to develop and validate a risk score for VTE in patients with gynecologic cancer and to test the predictive ability of the score following addition of procoagulant biomarker data. Patients and methods: Clinical and laboratory variables were used to develop a risk score for the prediction of VTE in patients with gynecological cancer (n = 616), which was validated in a separate cohort of patients (n = 406). Endogenous thrombin potential and D-dimer levels were determined in a subset (n = 290) of patients and used to produce an extended score in the validation cohort. Results: Multivariable regression analysis identified BMI >30, hemoglobin <11.5 g/dL and chemotherapy as independent predictors of VTE, which formed the Thrombogyn score. Following competing risk regression analysis, subdistribution hazard ratios (SHRs), adjusted for cancer stage, were 8.16 (95% confidence interval [CI], 1.69-43.77) in the high-risk group (score = 2-3) and 4.12 (95% CI, 0.85-20.15) in the intermediate-risk group (score = 1) compared with the low-risk group (score = 0). SHRs for the validation cohort were 6.26 (95% CI, 1.24-31.39) and 3.00 (95% CI, 0.67-13.32), respectively. Cumulative incidence of VTE in the validation cohort high-risk group was 10.34% (95% CI, 6.51-16.41) per women-years compared with 1.06% (95% CI, 0.26-4.26) in the low-risk group. Using the extended Thrombogyn score, adjusted SHRs were 16.83 (95% CI, 4.20-67.37) in the high-risk group with a cumulative incidence of 21.15% (95% CI, 10.32-45.24). External validation of the score is required. Conclusions: The Thrombogyn score identifies patients with gynecologic cancer at high and low risk of VTE. Addition of biomarker data improves the predictive power of the score.
Venous thromboembolism in ovarian cancer: incidence, risk factors and impact on survival.Abu Saadeh, Feras; Norris, Lucy; O'Toole, Sharon; Gleeson, Noreen; Department of Obstetrics & Gynaecology, Trinity Centre for Health Sciences, St. James' Hospital, Dublin 8, Ireland. Electronic address: firstname.lastname@example.org. (2013-09)Ovarian cancer has a higher incidence of venous thromboembolism (VTE) than other cancers. Clear cell cancers carry the highest risk at 11-27%. The aim of this study was to identify the predisposing factors for VTE in a population of ovarian cancer patients and to determine the influence of VTE on overall survival.