Ranjit C Chacko

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OBJECTIVE This study examined whether psychosis in Alzheimer's disease is associated with cerebral perfusion patterns appreciable by single photon emission computed tomography (SPECT) scans. METHOD All cooperative outpatients enrolled in an Alzheimer's disease research center with the diagnosis of probable Alzheimer's disease and a Clinical Dementia(More)
The authors report 5 cases of acquired obsessive-compulsive disorder occurring later in life. Patients' presentations, which could be readily mistaken for a delusional disorder, were associated with depressive symptoms and basal ganglia lesions, implicating dysfunction of the cortical-basal ganglia-thalamic-cortical neuroanatomical circuit.
OBJECTIVE The authors explored whether personal or family history of major mental illness, negative symptoms, or behavioral measures are associated with positive psychotic symptoms in Alzheimer's disease. METHOD Fifty-seven patients with Alzheimer's disease were studied prospectively during interviews with the patients and their primary caregivers. (More)
In a prospective, open-label study, 12 patients manifesting psychosis associated with Parkinson's disease were treated with clozapine. Cognitive functioning and type of psychotic symptoms were measured prior to treatment, and changes in psychiatric and behavioral symptoms were studied by using the Behave-AD Scale. Significant resolution in psychotic(More)
A group of 19 geriatric bipolar lithium patients were interviewed in order to assess the incidence, bothersomeness and intensity of medication side effects. The role of subject variables was also examined. Most often reported side effects included excessive thirst, hand tremor, excessive urination and dry mouth. Although many side effects were experienced,(More)
OBJECTIVE This study prospectively investigated the relation between pretransplant assessment of psychiatric diagnosis, coping skills, and social support and outcome measures of survival and health care utilization. METHOD Ninety-four heart transplant patients underwent structured interviews and completed a battery of self-report psychometric tests(More)
The purpose of this study was to explicate the statistical relationship between psychiatric diagnosis and psychosocial adjustment and health status in organ transplant candidates. Interview and psychometric data were obtained from 311 heart, kidney, lung, and liver transplant candidates. Over 60% of the cases met criteria for DSM-III-R Axis I diagnoses,(More)