Primary end-point times, functional outcome and adverse event profile after acute ischaemic stroke

Myzoon Ali, Ralph Sacco, Kennedy Lees

    Research output: Contribution to journalArticle

    Abstract

    Poststroke complications such as pulmonary embolism, deep vein thrombosis and pneumonia can impact outcome by causing deterioration in general health, delaying or preventing rehabilitation. While stroke carries a direct risk of complications, some events may be unrelated to index stroke severity and could confound outcome. We examined whether the presence of complications ‘unrelated’ to index stroke at later time-points could confound outcome, and if this could be minimised through altering study end-points. The majority of complications in the early acute period after index stroke were ‘stroke related’ (30·2%). Patients did not have a better modified Rankin Scale profile at 30 days when compared with 90 days, regardless of the type of complications experienced. The absence of ‘stroke unrelated’ complications was associated with a worse outcome at 30 days [P=0·04, adjusted odds ratio for good functional outcome=0·54, 95% confidence interval (0·3, 0·96)], and had no significant effect on outcome at 90 days.

    Original languageEnglish
    Article number2
    Pages (from-to)432–442
    Number of pages11
    JournalInternational Journal of Stroke
    Volume4
    Issue number6
    Early online date4 Nov 2009
    DOIs
    Publication statusPublished - Dec 2009

    Fingerprint

    Stroke
    Pulmonary Embolism
    Venous Thrombosis
    Pneumonia
    Rehabilitation
    Odds Ratio
    Confidence Intervals
    Health

    Keywords

    • clinical trial
    • ischaemic stroke

    Cite this

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    abstract = "Poststroke complications such as pulmonary embolism, deep vein thrombosis and pneumonia can impact outcome by causing deterioration in general health, delaying or preventing rehabilitation. While stroke carries a direct risk of complications, some events may be unrelated to index stroke severity and could confound outcome. We examined whether the presence of complications ‘unrelated’ to index stroke at later time-points could confound outcome, and if this could be minimised through altering study end-points. The majority of complications in the early acute period after index stroke were ‘stroke related’ (30·2{\%}). Patients did not have a better modified Rankin Scale profile at 30 days when compared with 90 days, regardless of the type of complications experienced. The absence of ‘stroke unrelated’ complications was associated with a worse outcome at 30 days [P=0·04, adjusted odds ratio for good functional outcome=0·54, 95{\%} confidence interval (0·3, 0·96)], and had no significant effect on outcome at 90 days.",
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    Primary end-point times, functional outcome and adverse event profile after acute ischaemic stroke. / Ali, Myzoon; Sacco, Ralph ; Lees, Kennedy .

    In: International Journal of Stroke, Vol. 4, No. 6, 2, 12.2009, p. 432–442.

    Research output: Contribution to journalArticle

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    AU - Ali, Myzoon

    AU - Sacco, Ralph

    AU - Lees, Kennedy

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    AB - Poststroke complications such as pulmonary embolism, deep vein thrombosis and pneumonia can impact outcome by causing deterioration in general health, delaying or preventing rehabilitation. While stroke carries a direct risk of complications, some events may be unrelated to index stroke severity and could confound outcome. We examined whether the presence of complications ‘unrelated’ to index stroke at later time-points could confound outcome, and if this could be minimised through altering study end-points. The majority of complications in the early acute period after index stroke were ‘stroke related’ (30·2%). Patients did not have a better modified Rankin Scale profile at 30 days when compared with 90 days, regardless of the type of complications experienced. The absence of ‘stroke unrelated’ complications was associated with a worse outcome at 30 days [P=0·04, adjusted odds ratio for good functional outcome=0·54, 95% confidence interval (0·3, 0·96)], and had no significant effect on outcome at 90 days.

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