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Middle Cerebral Artery Velocities Are Inversely Related to Hemoglobin Levels and Acutely Drop in Response to RBC Transfusion: Implications for Stroke Screening in SCD
DiscussionThese data show a striking relationship between anemia and TCD velocity, and that RBC transfusion can alter MCA velocity. Even an 11% increase in hemoglobin such as that seen in the low-responder in Figure 3 could change a patient classification from high-risk to conditional TCD. These data also show the significant sensitivity of MCA velocity to the depth of measurement (Figure 2 & 3). The investigators in the STOP study went to extreme ends to standardize these measurements. Nonetheless, TCD measures may not be done with such rigor in clinical settings. It is clear that standard TCD screening has been of tr...
Source: Blood - November 21, 2018 Category: Hematology Authors: Perumbeti, A., Carreras, O., Detterich, J. A., Shah, P., Sunwoo, J., Khoo, M., Wood, J. C., Coates, T. D. Tags: 114. Hemoglobinopathies, Excluding Thalassemia-Clinical: Poster II Source Type: research

Pial synangiosis for moyamoya syndrome in children with sickle cell anemia: a comprehensive review of reported cases.
Conclusions Pial synangiosis in patients with SCA, MMS, and brain ischemia appears to be a safe and effective treatment option. Transcranial Doppler and/or MRI screening in asymptomatic patients with SCA is recommended for the diagnosis of MMS. PMID: 24380478 [PubMed - in process]
Source: Neurosurgical Focus - January 1, 2014 Category: Neurosurgery Authors: Kennedy BC, McDowell MM, Yang PH, Wilson CM, Li S, Hankinson TC, Feldstein NA, Anderson RC Tags: Neurosurg Focus Source Type: research