Risk factors for deep venous thrombosis in tetraparesic mentally retarded patients

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Abstract
Objectives : The risk factors and incidence of deep venous thrombosis were studied in a population of para- and tetraparesic patients institutionalized for long durations. Methods : Retrospectively, the antecedents and risk factors of deep venous thrombosis were collected for each patient. Results : Data were available for 57 patients. The mean duration of hospitalization was 18 years. None of the patients presented thromboembolic pathology. Ninety-three per cent of the patients were spastic tetraparesic, 7% were spastic paraparesic. Sixty per cent of the patients presented added risk factors, mostly orthopaedic surgery, bone fractures and hormonal treatments. Conclusion : Spasticity probably plays a role in preventing deep venous thrombosis in paralysed patients, but it does not fully explain the absence of deep venous thrombosis in this population.

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