Herediter trombofili sebebiyle rekürren pulmoner embolizm (Olgu sunumu)
Pulmoner embolizm sık olarak görülebilen fakat güç teşhis edilen, mortalitesi yüksek olan bir hastalıktır. Pulmoner embolizm için tanımlanan birçok risk faktörü bulunmaktadır. Ancak herediter faktörler, özellikle tekrarlayan venöz tromboembolili olgular için önemli bir risk faktörüdür. Daha önce üç kez pulmoner embolizm tanısı konularak antikoagülan tedavi uygulanan olgumuzda, tekrarlayan pulmoner embolizm nedeni ile genetik risk faktörleri araştırıldı. Vakada homozigot faktör V Leiden mutasyonu, protein S eksikliği ve hiperhornosisteinemi tespit edildi. Ayrıca yapılan aile taramasında olgunun üç kız çocuğunda protein S, protein C eksikliği ue faktör V Leiden mutasyonu tespit edildi. Tekrarlayan pulmoner embolizm ve birden fazla genetik risk faktörü olan olgumuza yaşamı süresince antikoagülan tedavi verilmesi planlandı. Tekrarlayan pulmoner embolizm, hayatı tehdit etmesi nedeniyle son derece önemlidir. Trombozise eğilimde artışa neden olan genetik risk faktörlerinin araştırılması hem hastalar hem de aileleri için çok önemlidir.
Recurrent pulmonary embolism secondary to hereditary thrombophilia (Case report)
Pulmonary embolism is seen commonly but diagnosed difficulty and has high mortality. There are too many risk factors that have been described for pulmonary embolism: However, the hereditary factors are important risk factors for the cases especially with recurrent pulmonary embolism. In our case who had been diagnosed as pulmonary embolism three times before and treated with anticoagulants, because of the recurrent pulmonary embolism, the genetic risk factors were investigated. Homozygous factor V Leiden mutation, deficiency of protein S and hyperhomocysteinaemia were determined in our case. In addition, in the investigation of the family, protein S, protein C and factor V Leiden mutation were determined in all three daughters of our case. Since our patient has recurrent pulmonary embolism and has more than one genetic risk factors, anticoagulant treatment was planned for lifelong. Recurrent thromboembolism is too important because ofthreating the life. Identification of the genetic risk factors that result in increased tendency to thrombosis has important implications for the patients and their families.
___
- 1. Greaves M, Baglin T. Laboratory testing for heritable thrombophilia Impact on clinical management of thrombotic disease annotation. Br J Haematol 2000; 109:699-703.
- 2. Dahlback B, Carlsson M, Svensson PJ. Familial thrombofilia due to previously unrecognized mechanism characterized by poor antikoagulant response to activated protein C: Predication of a cofactor to activated protein C. Proc Natl Acad 1993; 90: 1004-8.
- 3. Zöller B, Berntsdotter A, Garcia de Frutos P, Dahiback B. Resistance to activated protein C as an additional genetic risk factor in hereditary deficiency of protein S. Blood 1995; 82: 3518-23.
- 4. Gorman T, Arcot A, Baker P, Prior T. Prevalance of the factor V Leiden mutation among autopsy patients with pulmonary thromboembolic disease using an improved method for factor V Leiden detection. Am J Clin Pathol 1999; 111:413-7.
- 5. Rees DC, Cox M, Clegg JB. World distribution of factor V Leiden. Lancet 1995; 346: 1133-4.
- 6. Akar N, Akar E, Dalgın G, et al. Frequency of factor V mutation in Turkish population. Thromb Heamost 1997; 78: 1527-8.
- 7. Koster T, Rosendaal FR, de Ronde H, et al. Venous thrombosis due to a poor response to activated protein C. Leiden Thrombophilia Study. Lancet 1993; 342: 1503-6.
- 8. Rosendaal FR, Koster T, Vanderbroucke JP, Reitsma PH. High risk of thrombosis In patients homozygosus for factor V Leiden activated protein C resistance. Blood 1995; 85: 1504-8.
- 9. Simioni P, Prandoni P, Lensing A, Scudeller A. The risk of recurrent venous thromboembolism in patients with an arg506-gln mutation in the gene for factor V. N Engl J Med 1997; 336: 339-403.
- 10. British Committee for Standarts in Heamatology. Guidelines on investigation and management of heritable thrombophilia. Br J Haematol 2001; 114:512-28.
- 11. De Stefano V, Finazzi G, Mannucci G. Inheredited thrombophilia: Pathogenesis, clinical syndromes, and management. Blood 1996; 87:3531-44.
- 12. Dykes AC, Walker ID, McMahon AD, et al. A study of protein S antigen levels in 3788 healthy volunteers: Influance of age, sex and hormone use, and estimate for prevalance of deficiency state. Br J Haematol 2001; 113: 636-41.
- 13. Bertina RM. Molecular risk factors for thrombosis. Thromb Heamost 1999; 82: 601-9.
- 14. Engeser LA, Broekmans W, Briet E, Brommer EJ. Hereditary protein S deficiency: Clinical manifestations. Ann Intern Med 1987; 106: 677-82.
- 15. Tosetto A, Rodeghiero F, Martinelli I, De Stefano V. Additional genetic risk factors for venous thromboembolism in carriers of the factor V leiden mutation. Br J Haematol 1998; 103: 871-6.
- 16. Öner F, Kaya A, Doğan A, Numanoğlu N. Venöz tromboembolizmde kalıtsal risk faktörleri. Tüberküloz ve Toraks 2003; 51: 60-9.
- 17. Den Heijer M, Koster T, Bloom H, Bos G. Hyperhomocysteinemia as a risk factor for deep-vein thrombosis. N Engl J Med 1996; 334: 759-62.
- 18. Falcon CR, Cattanetto M, Panzeri D, Martinelli I. High prevalance of hyperhomocysteinemia in patients with juvenile venous thrombosis. Arterioscler Thromb 1994; 14: 1080-3.
- 19. Den Heijer M, Bloom HJ, Gerrits WJB. Is hyperhomocysteinemia a risk factor for recurrent venous thrombosis? Lancet 1995; 85: 2756-61.
- 20. Laffan M. Pulmonary embolism. Thorax 1998; 53:698-702.
- 21. Martinelli I. Risk factors in venous thromboembolism. Thromb Haemost 2001; 109: 395-403.
- 22. Martinelli I, Bucciarelli P, Margaglione M, et al. The risk of venous thromboembolism in family members with mutations in the genes of factor V or prothrombin or both. Br J Haematol 2000; 111: 1233-9.