Mobile health intervention leads to improved lifestyle preventing secondary Stroke: ICMR Study

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 The mobile health intervention can lead to improved lifestyle-related behaviours that can prevent secondary stroke, according to a study conducted under Indian Council of Medical Research’s Indian Stroke Clinical Trial Network (INSTRuCT) of stroke-ready centres in India. The study was done across 31 stroke centres in India.

Stroke is one of the leading causes of death and disability in India. After a stroke about 15 to 20 per cent of the patients in India develop another stroke (recurrence). The main reasons for recurrence are discontinuing medicines, lack of control of BP, blood sugar, continuing smoking, alcohol intake, following unhealthy food habits etc. There are two types of stroke – ischemic when there is a blockage in one of the brain arteries and brain hemorrhage when there is rupture and leakage of one of the arteries which supplies blood to the brain. High blood pressure is the number one cause of ischemic and hemorrhagic strokes.

The trial was conducted by SPRINT-India (Secondary Prevention by Structured Semi-Interactive Stroke Prevention Package) under ICMR’s Indian Stroke Clinical Trial Network  (INSTRuCT) of stroke-ready centres in India, one of its kind in developing countries and the fourth government-supported network around the world. The trial’s intervention was a package composed of SMS text messages, health education videos and stroke prevention workbook for patients. The messages focused on control of blood sugar, blood pressure, cholesterol, improve physical activity, eat healthy diet and not to miss taking medicines to prevent stroke. The awareness material was systematically developed in 12 different regional languages.

The patients in the control group received standard care whereas those in the intervention arm received awareness materialat weekly intervalsto promote healthy living and adherence to medicines.

A total 4298 patients were randomly allocated to intervention arm (2148) and control arm (2150). 1502 patients in intervention arm and 1536 patients in the control arm completed 1 year follow up. SPRINT India trial used complex behavioral interventions to reduce recurrence of stroke. The results of the trial revealed that structured semi-interactive stroke prevention package improved lifestyle behavioral factors and adherence to medication, which might have long-term benefits. The trial went a step further than contemporary trials in assessing the effect on endpoints such as recurrence of cardiovascular events and deaths. However, the follow up period was short to show any differences between control and intervention group. The results of the trial were published in the Lancet Global Health journal on 14th February 2023.

Dr Jeyaraj D Pandian, Professor of Neurology and Principal, Christian Medical College, Ludhiana and Principal Investigator of the clinical coordinating centre, said that the proportion of patients who stopped smoking (83 per cent) and alcohol (85 per cnet) improved in the intervention group as compared to control group (78 per cnet and 75 per cent respectively). “Adherence to medications was also better in intervention arm (94 per cnet) as compared to control arm (89 per cnet). The events like stroke, heart attack and death did not differ between the two groups (5.5% vs 4.9%) at one year follow up. This may be because the follow up period was too short or study centres were stroke-ready centers, which were already providing good quality of care to stroke patients”.

“SPRINT study is the first trial in India (and perhaps globally) to try to assess the role of an mHealth intervention in secondary prevention of stroke at such a large scale. It provides hope in improving lifestyle and medical complications leveraging technology in a resource-constrained setup. In phase 2 which started in September 2022, 4 more stroke trials, which are very relevant to the country, have been initiated by ICMR. We would get answers to important treatments for stroke in the coming years”, said Dr Meenakshi Sharma Scientist-G, Noncommunicable Diseases Division, ICMR.