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2018 ; 18
(1
): 33
Nephropedia Template TP
gab.com Text
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Twit Text #
English Wikipedia
Cerebral microbleeds shouldn t dictate treatment of acute stroke: a retrospective
cohort study evaluating risk of intracerebral hemorrhage
#MMPMID29587638
Chacon-Portillo MA
; Llinas RH
; Marsh EB
BMC Neurol
2018[Mar]; 18
(1
): 33
PMID29587638
show ga
BACKGROUND: Intravenous tissue plasminogen activator (IV tPA) after acute
ischemic stroke carries the risk of symptomatic intracerebral hemorrhage (sICH).
Cerebral microbleeds (CMBs) may indicate increased risk of hemorrhage and can be
seen on magnetic resonance imaging (MRI). In this study, we examined the
association between CMBs and sICH, focusing on the predictive value of their
presence, burden, and location. METHODS: Records from all patients presenting to
two academic stroke centers with acute ischemic stroke treated with IV tPA over a
5-year period were retrospectively reviewed. Demographic, medical, and imaging
variables were evaluated. The presence, number, and location (lobar vs nonlobar)
of CMBs were noted on gradient echo MRI sequences obtained during the admission.
Univariable and multivariable statistical models were used to determine the
relationship between CMBs and hemorrhagic (symptomatic and asymptomatic)
transformation. RESULTS: Of 292 patients (mean age 62.8 years (SD 15.3), 49%
African-American, 52% women), 21% (n =?62) had at least one CMB, 1% (n =?3) had
>?10 CMBs, and 1% (n?=?3) were diagnosed with probable cerebral amyloid
angiopathy. After treatment, 16% (n =?46) developed hemorrhagic transformation,
of which 6 (2%) were sICH. There was no association between CMB presence
(p =?.135) or location (p =?.325) with sICH; however, those with a high CMB
burden (>?10 CMB) were more likely to develop sICH (OR 37.8; 95% CI: 2.7-539.3;
p =?.007). CONCLUSIONS: Our findings support prior findings that a high CMB
burden (>?10) in patients with acute stroke treated with IV tPA are associated
with a higher risk of sICH. However, the overall rate of sICH in the presence of
CMB is very low, indicating that the presence of CMBs by itself should not
dictate the decision to treat with thrombolytics.