Effect of modifiable and non-modifiable risk factors as predictors of functional outcome of stroke rehabilitation

ABSTRACT

The old myth that the survival of patients with complete stroke is not sufficiently long enough to justify the great expenses and efforts of rehabilitation has been disproved by recent studies which show that at least 50 percent of the survivors lived for 7.5 years or longer. The risk factors may act as stroke outcome predictors and hence determine the intensity and type of rehabilitation program. To investigate the stroke outcome predictors that will define groups of patients with maximal or minimal benefit from rehabilitation of stroke. This prospective study included 115 Ischemic stroke patients attending the Department of Rheumatology and Rehabilitation, Zagazig University Hospitals, Zagazig Health Insurance Hospital and Zagazig Rehabilitation Centre, Ministry of Social Affairs, Egypt during 2005-2006. All the patients were subjected to full history and clinical examination and routine investigations. We analyzed the influence of modifiable risk factors diabetes mellitus [DM], hypertension [HTN], ischemic heart disease [IHD] and the duration before rehabilitation and non modifiable factors; age, sex and side of lesion on stroke outcome. All patients received regular rehabilitation and an evaluation at enrolling and discharge, using the modified Barthel Index. The study lasted for 9 months duration. Our results after statistical analysis showed that patients with ischemic heart disease [IHD] showed the greatest improvement after 4 months of rehabilitation. The group of patients without risk co-morbid factor followed and then patients with hypertension [HTN], patients with diabetes mellitus, patients with combined DM and HTN and patients with combined HTN and ischemic heart disease IHD. The group of patients known to have HTN, DM and IHD combined did not show significant improvement. The non modifiable risk factors age, sex and site of cerebrovascular lesion did not show any significant difference although younger patients showed better improvement without significant difference. Modifiable risk factors have a strong effect as predictors of functional outcome at rehabilitation. Patients with more than 2 risk factors as well as late entry for rehabilitation may have bad prognosis