[Venous thromboembolism: What other risk factors in a North African population? A study of 276 cases].
BACKGROUND
Venous thromboembolism is a multicausal disease. Understanding interactions between risk factors is the key to advance knowledge about the etiology of venous thrombosis. These interactions are still unclear. In addition to traditional risk factors, there is data about many other risk factors, recorded with few populations based prospective epidemiologic studies or punctually reported. Interactions between these risk factors remain unclear. The aim of our work is to identify and analyze combinations of risk factors.


METHODS
This is a retrospective, single-center study, which investigates the etiology of venous thromboembolism, on the records of patients hospitalized in internal medicine for venous thrombosis, over a period of 12 years.


RESULTS
We selected 276 cases. The average age was 51 years. At least, we found one traditional risk factors in 87 % of cases, 34 patients had no traditional risk factors. Suspected risk factors were found in 81 % of cases and there was at least one punctually reported factor in 34 % of cases. The combination of risk factors mostly found was association of traditional and suspected risk factors. In more than 50 % of patients, we noted at least, more than one traditional or one suspected risk factors. Among 18 patients presenting only suspected risk factors, there was at least combination of 3 risk factors per patient.


CONCLUSIONS
The role of suspected risk factors in the occurrence of venous thrombosis was not negligible in this work. Our data suggest a hypothesis that it's through their association that suspected risk factors might be able becoming comparable to traditional risk factors.
Service de médicine interne B, hôpital Charles-Nicolle, faculté de médecine de Tunis, université de Tunis El Manar, 1006 Bab Saadoun, Tunis, Tunisie. Electronic address: imen.boukhris@laposte.net.
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Boukhris
Service de médecine interne, hôpital Mongi Slim la Marsa, 2046 Sidi Daoued, Tunis, Tunisie.
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Abdallah
Service de médecine interne, hôpital Mongi Slim la Marsa, 2046 Sidi Daoued, Tunis, Tunisie.
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Bouslema
Service de médecine interne, hôpital Mongi Slim la Marsa, 2046 Sidi Daoued, Tunis, Tunisie.
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Hamzaoui
Service de médecine interne, hôpital Mongi Slim la Marsa, 2046 Sidi Daoued, Tunis, Tunisie.
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Larbi
Service de médecine interne, hôpital Mongi Slim la Marsa, 2046 Sidi Daoued, Tunis, Tunisie.
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Harmel
Service de médicine interne B, hôpital Charles-Nicolle, faculté de médecine de Tunis, université de Tunis El Manar, 1006 Bab Saadoun, Tunis, Tunisie.
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N
Khalfallah
Service de médecine interne, hôpital Mongi Slim la Marsa, 2046 Sidi Daoued, Tunis, Tunisie.
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Mrad
D000293:Adolescent; D000328:Adult; D000352:Africa, Northern / Q000453:epidemiology; D000368:Aged; D000369:Aged, 80 and over; D015992:Body Mass Index; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009765:Obesity / Q000453:epidemiology; D015995:Prevalence; D012189:Retrospective Studies; D012307:Risk Factors; D054556:Venous Thromboembolism / Q000175:diagnosis / Q000453:epidemiology*
Facteurs de risque; Maladie thromboembolique veineuse; Risk factors; Venous thromboembolism