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State Of The Art Functional Imaging In Sickle Cell Disease

2014-08-27 03:13:09 | BioPortfolio

Summary

Sickle cell anemia (SCA) is a serious blood disease with blood vessel changes leading to brain injury and stroke. Studies show about 11% of patients with SCA will develop obvious stroke before age 20 years, with children less than 10 years of age especially vulnerable.The main objective of the SCDMR4[State Of The Art Functional Imaging In Sickle Cell Disease] trial is to compare the gray matter cerebral blood flow, measured by MRI,[magnetic resonance imaging] ASL [Arterial Spin Labeling] perfusion before treatment begins and after the appropriate hydroxyurea dosage is reached (~ one year). Other important objectives of the SCDMR4 trial include describing the effect of hydroxyurea therapy and transfusion therapy on the functional MRI response, diffusion tensor imaging of white matter, brain function, and transcranial Doppler blood velocities.

Description

The Primary Objective of the study is to compare the research participant's GM[Gray Matter] CBF [Cerebral Blood Flow] by ASL [Arterial Spin Labeling] techniques before and after reaching a stable hydroxyurea MTD[Maximum Tolerated Dose] (12±3 months after starting hydroxyurea).

Study Design

Observational Model: Case Control, Time Perspective: Prospective

Conditions

Sickle Cell Disease [SCD]

Location

St. Jude Children's Research Hospital
Memphis
Tennessee
United States
38105

Status

Not yet recruiting

Source

St. Jude Children's Research Hospital

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-08-27T03:13:09-0400

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Medical and Biotech [MESH] Definitions

One of the sickle cell disorders characterized by the presence of both hemoglobin S and hemoglobin C. It is similar to, but less severe than sickle cell anemia.

An abnormal hemoglobin resulting from the substitution of valine for glutamic acid at position 6 of the beta chain of the globin moiety. The heterozygous state results in sickle cell trait, the homozygous in sickle cell anemia.

An acute purulent infection of the meninges and subarachnoid space caused by Streptococcus pneumoniae, most prevalent in children and adults over the age of 60. This illness may be associated with OTITIS MEDIA; MASTOIDITIS; SINUSITIS; RESPIRATORY TRACT INFECTIONS; sickle cell disease (ANEMIA, SICKLE CELL); skull fractures; and other disorders. Clinical manifestations include FEVER; HEADACHE; neck stiffness; and somnolence followed by SEIZURES; focal neurologic deficits (notably DEAFNESS); and COMA. (From Miller et al., Merritt's Textbook of Neurology, 9th ed, p111)

A disease characterized by chronic hemolytic anemia, episodic painful crises, and pathologic involvement of many organs. It is the clinical expression of homozygosity for hemoglobin S.

The condition of being heterozygous for hemoglobin S.

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