Geeta Shroff, Barthakur JK, Parul Mohan and Harsh Mahajan
Introduction: Cerebral palsy (CP) is caused by abnormalities in the developing brain leading to an impairment of muscle coordination and movement control in the body. Neonatal hypoxic-ischemic brain injury and hypoxic ischemic encephalopathy (HIE) are major causes of CP. Neurodegenerative disorders can be treated with human embryonic stem cells (hESC). Magnetic resonance imaging (MRI), positron emission tomography and single photon emission computed tomography (SPECT) scan are some of the imaging modalities for CP, but among all SPECT scan is more sensitive in detecting abnormalities in the brain. SPECT scan is an effective tool for the detection of cerebral blood flow, cerebral impairment and local brain metabolism. The present study was conducted to evaluate the diagnostic modality of SPECT scan that can assess the patient with CP before and after hESC therapy.
Methodology: The study included the patients with CP for whom SPECT scan was performed before and after the therapy. Technetium-hexa methyl propylene aminoxime (Tc-HMPAO) SPECT scan was analyzed to assess the number of hypoperfused lesions/ areas in the brain and the percentage of improvement by hESC treatment. The patients were scored clinically using GMFCS scores.
Results: Overall, 88 patients aged 2 months to 18 years with clinical manifestations of CP had SPECT scan performed before and after the therapy. The total treatment days varied from 31 to 310 days. All the subjects showed improvement in SPECT scan. Majority of subjects (n=58) had significant SPECT scan (>60%) change, followed by moderate SPECT scan (>30% <60%) change in 15 subjects, mild scan (>10% <30%) change in 3 subjects. These patients also showed a clinical improvement as reflected in their GMFCS scores.
Conclusion: SPECT scan can be a crucial diagnostic modality to assess patients with CP.
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