اثار حبوب منع الحمل الفومية احادية الطور على فعالية عامل التخثر السابع ومستوى ثنائي ال دي - دايمر في النساء الاصحاء والبدينات == The Effect of Regular Monophasic Oral Contraceptive Pills on Factor VII Activity and D - dimer Level in Healthy and Obese Women
Author name:
اسراء سعدي عباس
Supervisor name:
هيثم احمد الربيعي
General topic:
Medicine
Specific topic:
Diseases - Blood
Degree:
Higher Diploma
University:
University of Baghdad - Faculty Of Medicine
Language:
English
University location:
Baghdad
First pages:
19T1610 - p.pdf
Abstract:
The combined oral contraceptive pill includes a combination of estrogen and progestin. Clinical and epidemiological studies indicate that the use of these pills is associated with an increased risk of thrombotic disorder including both deep vein thrombosis and pulmonary embolism.The pathogenesis of increased thrombotic risk with pills use is that the estrogen content in the pills has many effects on coagulation system that results in shifting of the hemostatic balance toward a prothrombotic state.Obesity is defined as abnormal or excessive fat accumulation that may impair health. Body mass index is commonly used to classify overweight and obesity. It is an independent risk factor for venous thromboembolism and increases the risk of thrombosis 2 - fold, since obese individuals have higher levels of several procoagulant factors. There may be an additional risk of thrombosis caused by venous stasis that also occurs with obesity. Oral contraceptive use in conjunction with obesity increases the risk of thrombosis about 10 - fold.Aim of the studyTo assess the level of FVII activity, D - dimer level, and other hemostatic changes in healthy non - obese and obese women on contraceptive pills and compare them to that found in normal healthy non - user women.Patient, materials and methodsThis case - control study included 50 females attending the family planning clinic at Baghdad Teaching Hospital of Medical City. TheyIIIwere regularly using monophasic regular dose estrogen containing combined oral contraceptive pills (Microgynon® ED Fe) for at least 3 months. Their ages were between 18 and 45 years. Females on pills were divided into 2 groups : Non - obese group : enrolled 25 females with BMI of < 30 kg/m2 (15/25 females were overweight, and 10/25 were of normal weight) Obese group : composed of 25 females with BMI of ≥ 30 kg/m2Twenty five healthy, non - obese (16/25 were overweight and 9/25 had normal weight), age - matched non - pregnant females neither on pills, nor taking any hormonal therapy and having no history of malignancy or previous thrombosis, were assigned as a control group.Relevant clinical data were collected from all participants. Weight and height were measured (in kilograms and centimeters, respectively), and then the BMI was calculated accordingly for each participant.Platelet counts were measured by a hematology auto - analyzer (Cell - DYN, RUBY ABBOTT Diagnostic, USA). Prothrombin time, activated partial thromboplastin time, and factor VII activity were measured using semi - automated coagulometer (STart4®, DIAGNOSTICA STAGO/France). D - dimer levels were measured by turbidimetric immunoassay using an automated analyzer (ARCHITECT c4000, Abbott Diagnostics, USA).ResultsThere was significant reduction in prothrombin time in the non - obese, obese, and pills users groups compared to that in the control group (P= 0.014, 0.020, and 0.006 respectively), while the activated partial thromboplastin time was insignificantly reduced in all of these groups.Moreover 22% of pills user cases had shortened prothrombin time compared to the lower limit of prothrombin time in the control group (11.8 sec), and 8% of them were found to have shortened activated partial thromboplastin time compared to the lower limit of activated partial thromboplastin time in the control group (24.6 sec).The correlations between the duration of pills use (< 1 year and > 1 year) and prothrombin time and activated partial thromboplastin time showed statistically insignificant differences in both study groups.The factor VII activity in the non - obese, obese, and pills users groups were significantly higher than that of the control group (P= 0.041, 0.001, and 0.004 respectively). It had been observed that 22% of pills user cases had FVII activity above the highest value of activity that was found in the control group (95%). Also there was a significant inverse correlation between the prothrombin time and factor VII activity with P - value of 0.008.The D - dimer levels were found to be significantly higher in the non - obese and obese group compared to that of the control group (P= 0.029 and 0.038, respectively). The mean D - dimer of the pills users group was insignificantly higher than that of the control group, P value = 0.053.The platelet count was insignificantly increased in the non - obese group when compared with that in the control group (P= 0.106), while it was significantly increased in the obese and pills users groups compared with that in the control (P = 0.027, and 0.034, respectively). There were no statistically significant differences in the means of prothrombin time, activated partial thromboplastin time, factor VII activity, D - dimer level, and platelet count between the non - obese and obese groups (P > 0.05).
