Distinctive visual tasks for characterizing mild cognitive impairment and dementia using oculomotor behavior.

Introduction: One's eye movement (in response to visual tasks) provides a unique window into the cognitive processes and higher-order cognitive functions that become adversely affected in cases with cognitive decline, such as those mild cognitive impairment (MCI) and dementia. MCI is a transitional stage between normal aging and dementia. Methods: In the current work, we have focused on identifying visual tasks (such as horizontal and vertical Pro-saccade, Anti-saccade and Memory Guided Fixation tasks) that can differentiate individuals with MCI and dementia from their cognitively unimpaired healthy aging counterparts based on oculomotor Performance indices. In an attempt to identify the optimal combination of visual tasks that can be used to differentiate the participant groups, clustering was performed using the oculomotor Performance indices. Results: Results of our study with a group of 60 cognitively unimpaired healthy aging individuals, a group with 60 individuals with MCI and a group with 60 individuals with dementia indicate that the horizontal and vertical Anti-saccade tasks provided the optimal combination that could differentiate individuals with MCI and dementia from their cognitively unimpaired healthy aging counterparts with clustering accuracy of ∼92% based on the saccade latencies. Also, the saccade latencies during both of these Anti-saccade tasks were found to strongly correlate with the Neuropsychological test scores. Discussion: This suggests that the Anti-saccade tasks can hold promise in clinical practice for professionals working with individuals with MCI and dementia.

Effects of transcranial direct current stimulation upon attention and visuoperceptual function in Lewy body dementia: a preliminary study.

BACKGROUND: Individuals with Lewy body dementia (LBD) typically exhibit impairments in attentional and executive function. Current pharmacological treatments have limited efficacy, with associated side effects. Transcranial direct current stimulation (tDCS) may represent an alternative treatment, as cognitive improvements have been demonstrated in healthy individuals. However, no studies to date have assessed the feasibility of tDCS in an LBD population. The aim of this preliminary study, therefore, was to assess the tolerability of tDCS, as well as its effects upon attentional and visuoperceptual performance, in LBD patients. METHODS: Thirteen participants completed attentional (simple reaction time, choice reaction time, and digit vigilance) and forced-choice visuoperceptual (angle and motion perception) tasks before and after one 20-min session of active tDCS (0.08 mA/cm2). The anodal electrode was applied to the left dorsolateral prefrontal cortex and the cathodal electrode was applied to the right deltoid. Attentional (task accuracy and reaction time to correct answers) and visuoperceptual (task accuracy and difficulty) outcome measures were compared using paired t-tests. RESULTS: All participants tolerated stimulation and did not report any side effects during or immediately after stimulation. Post-stimulation improvements were observed in the choice reaction time (increased percentage of correct answers; p = 0.01) and digit vigilance (reduced mean reaction time to correct answers; p = 0.02) attention tasks. Visuoperceptual task performance did not improve (all p-values > 0.05). CONCLUSIONS: Attentional, but not visuoperceptual, improvements were observed following stimulation in LBD patients. Larger-scale, placebo-controlled trials are needed to confirm whether tDCS is a useful treatment option for attentional deficits in LBD.

A comparative study of caregivers' perceptions of health-care needs and burden of patients with bipolar affective disorder and schizophrenia.

BACKGROUND: Although many studies in schizophrenia have evaluated health-care needs, there is a lack of data on the needs of patients with bipolar affective disorder (BPAD), with only occasional studies evaluating them, and no study has evaluated the relationship of health-care needs of patients with caregiver's burden. AIM: To study the relationship of caregiver's burden and needs of patients as perceived by caregivers of patients with BPAD and schizophrenia. METHOD: Caregivers of patients with BPAD and schizophrenia were assessed using the Camberwell Assessment of Needs - Research version (CAN-R) and Supplementary Needs Assessment Scale (SNAS), the Family Burden Interview schedule (FBI) and the Involvement Evaluation Questionnaire (IEQ). RESULTS: Mean total needs of patients on CAN-R were 7.54 (SD 3.59) and 7.58 (SD 4.24) for BPAD and schizophrenia respectively. Mean total needs for SNAS were 7.24 (SD 3.67) and 7.68 (SD 5.02) for BPAD and schizophrenia groups, respectively. Total objective and subjective burden as assessed on FBI was significantly more for the schizophrenia group. Caregivers of patients with BPAD perceived significantly less disruption of routine family activities and lower impact on the mental health of others. On IEQ, the mean score on the domain of supervision was significantly higher for the BPAD group. In the schizophrenia group, positive correlations were seen between the total number of unmet and total (met and unmet) needs and certain aspects of burden, but no such correlations emerged in the BPAD group. CONCLUSION: There is no correlation between number of needs and burden in the BPAD group; however, in the schizophrenia group the number of needs correlated with the perceived burden. Accordingly, orienting services to address needs of patients with schizophrenia can lead to reduction in burden among caregivers.

Clinicians' versus caregivers' ratings of burden in patients with schizophrenia and bipolar disorder.

BACKGROUND: Only a few studies have evaluated the similarities and differences between clinicians' and caregivers' rating of burden of caring for a person with chronic mental illness. AIM: To compare clinician-rated and caregiver-rated burden in a population of patients with either schizophrenia or bipolar disorder, using two different scales to measure caregiver burden. METHODOLOGY: Caregivers of patients with schizophrenia (n = 65) or bipolar disorder (n = 57) completed the Hindi version of the Involvement Evaluation Questionnaire (Hindi-IEQ) by themselves. Clinicians rated the burden on the Family Burden Interview Schedule (FBI) based on semi-structured interview with the same caregivers. RESULTS: Both total objective and subjective burden on the FBI (clinician ratings) demonstrated significant positive correlations with the total Hindi-IEQ (caregiver ratings) scores. Most areas of burden on the FBI correlated positively with the tension and the worrying-urging II subscales, as well as the total Hindi-IEQ scores. According to clinicians, a significantly higher percentage of caregivers of patients with schizophrenia were experiencing a moderate to severe degree of subjective burden; objective burden in this group was also significantly higher in the domains of effect on the mental health of caregivers. Contrastingly, caregivers of patients with bipolar disorder judged burden to be higher in this group than schizophrenia. CONCLUSIONS: There were many areas of agreement as well as some significant discrepancies between clinicians' and caregivers' assessment of burden in this population of patients. This suggests that a comprehensive evaluation of burden should include assessments by both clinicians and caregivers of patients.

Prevalence and pattern of sexual dysfunction in married females receiving antidepressants: An exploratory study.

OBJECTIVE: To study the prevalence and patterns of sexual dysfunctions in female patients receiving antidepressants. MATERIALS AND METHODS: Eighty married female patients with a diagnosis of depressive disorder, currently in remission, and receiving a single antidepressant at least for 3 months, were assessed for sexual dysfunction on female sexual function index (FSFI) scale. RESULTS: Thirty four patients (42.5%) receiving antidepressants had FSFI score less than 26.55 and were considered to have sexual dysfunction. When only the domain cutoff scores were used for the whole study sample (n=80), it was found that 95% had decreased desire, 60% had decreased arousal, 37.5% had decreased lubrication, 63.8 had decreased orgasm, 55% had decreased satisfaction and 25% had pain during sexual activity. CONCLUSIONS: To conclude, our study suggests that sexual dysfunction is quite prevalent in married female patients receiving antidepressants and all the domains of sexual functioning are impaired by antidepressants.

Prevalence of metabolic syndrome in patients with schizophrenia in India.

Prevalence of metabolic syndrome (MS) was estimated in 227 patients with schizophrenia. A total of 43.6% of patients fulfilled International Diabetes Federation (IDF) criteria and 44.5% met modified National Cholesterol Education Program Adult Treatment Panel-III (NCEP ATP- III) criteria of MS. Increased waist circumference was the most common abnormality (64.8%) and high glucose level was the least common (15.9%). In regression analysis, age more than 35 years (OR-3.37), female gender (odds ratios (OR-1.81)), urban locality (OR-2.08), being employed (OR-2.12) and BMI more than 25 (OR-5.64) emerged as significant predictors of MS.

Treatment resistant non-catatonic mutism in schizophrenia responding to a combination of continuation electroconvulsive therapy and neuroleptics.

Non-catatonic mutism in schizophrenia has been described less frequently in literature. We describe the case of a young male who presented with non-catatonic mutism, secondary to first rank symptoms, which was refractory to adequate antipsychotic trials (quetiapine, risperidone, aripiprazole, ziprasidone, and trifluperazine) and responded to a combination of electroconvulsive therapy (ECT) and neuroleptics partially. However, when the ECT was continued in the continuation phase, the patient started speaking.

Prevalence of metabolic syndrome in bipolar disorder: an exploratory study from North India.

PURPOSE: To study the prevalence of metabolic syndrome in patients with bipolar disorder. MATERIAL AND METHOD: By using purposive random sampling 200 patients with bipolar disorder receiving treatment were evaluated for presence of metabolic syndrome using International Diabetes Federation (IDF) and modified National Cholesterol Education Program Adult Treatment Panel III (NCEP ATP-III) criteria. RESULTS: Eighty patients fulfilled IDF criteria and 82 patients met NCEP ATP-III criteria for metabolic syndrome. There was significant concordance between these two criteria sets for metabolic syndrome (Kappa value 0.979, p<0.015). Among the individual parameters studied--increased waist circumference (70.1%) was the most common abnormality, followed by increased blood pressure (44.5%) and increased triglycerides levels (42%). Compared to patients without metabolic syndrome, patients with metabolic syndrome had significantly higher body mass index and higher percentage of them (74.4% vs 51.7%) were more than 35 years of age. Logistic regression analysis revealed that these two variables significantly predicted metabolic syndrome. CONCLUSION: Findings of the present study suggest that abdominal obesity is the most common abnormality and metabolic syndrome is best predicted in patients with bipolar disorder by higher age and higher body mass index.

Perceived burden and quality of life of caregivers in obsessive-compulsive disorder.

AIM: The study aimed to examine the family burden and quality of life (QOL) of caregivers of patients with obsessive-compulsive disorder (OCD). METHODS: A cross-sectional assessment of 50 patients with OCD and their caregivers was carried out. The severity of OCD was assessed using the Yale-Brown Obsessive Compulsive Scale. The caregivers were assessed using the Family Burden Interview Schedule and the World Health Organization Quality of Life BREF version (WHOQOL-BREF). RESULTS: Fifty-six percent of caregivers reported a high objective burden. Severity of illness correlated with burden and impaired QOL of caregivers. Age of patient, longer duration of illness and longer duration of treatment were predictive of poorer QOL of caregivers in the physical health domain. Greater objective burden, disruption of family leisure and interaction due to OCD led to significantly poorer QOL in all domains in caregivers. Higher financial burden, perception of poorer mental health, and higher subjective burden were predictive of poorer physical, general health and general and psychological QOL, respectively. CONCLUSIONS: The study provides important insights into the QOL and perceived burden of caregivers of OCD patients. It highlights the need for improving the quality of care not only for patients but also for primary caregivers.

Phenomenology and treatment of Catatonia: A descriptive study from north India.

BACKGROUND: Studies on clinical features of catatonia in the Indian population are few in number. AIM: To study the phenomenology, clinical profile and treatment response of subjects admitted to the psychiatry inpatient with catatonia. MATERIALS AND METHODS: Detailed treatment records of all the inpatients were scanned for the period January 2004 to December 2008. Patients with catatonia (diagnosed as two symptoms as per the Bush Francis Catatonia Rating scale) were included. RESULTS: During the study period, 1056 subjects were admitted in the inpatient unit, of which 51 (4.8% of the total admissions) had catatonic features and had been rated on the Bush Francis Catatonia Rating scale. The mean age of the sample was 30.02 years (SD=14.6; range 13-69), with an almost equal gender ratio. Most of the patients presenting with catatonia were diagnosed as having psychotic disorders (40; 74.8%), of which the most common diagnosis was schizophrenia (27; 52.9%) of the catatonic subtype (20; 39.2%). Three subjects with primary diagnosis of a psychotic disorder had comorbid depression. Other diagnoses included mood disorders (7; 13.72%) and organic brain syndromes (04; 7.9%). According to the Bush Francis Rating scale, the common signs and symptoms exhibited by the subjects were mutism (94.1%), followed by immobility/stupor (78.5%), staring (78.4%), negativism (74.5%), rigidity (63%) and posturing/catalepsy (61.8%). All the patients were initially treated with lorazepam. Electroconvulsive therapy was required in most cases (42; 82.35%). CONCLUSION: The common symptoms of catatonia are mutism, immobility/stupor, staring, posturing, negativism and rigidity. The most common underlying psychiatric diagnosis was schizophrenia.

Angioneurotic edema with risperidone: a case report and review of literature.

Angioedema is characterised by oedema of the deep dermal and subcutaneous tissues and is reported as a rare adverse cutaneous reaction with risperidone, clozapine, ziprasidone, droperidol and chlorpromazine. Here we report a case of angioedema with risperidone. A 15-year-old boy diagnosed with schizophrenia was started on risperidone 1 mg/day, which was increased to 2 mg/day after 2 weeks. Within a week of increasing risperidone, he developed swelling over the face and feet. On examination he was found to have periorbital oedema and swollen lips. Following this, risperidone was stopped. Over the period of 1 week his oedema subsided, following which he was started on Haloperidol 5 mg/day, with which his psychosis improved significantly.

Indian research: Focus on clozapine.

Clozapine has been used in the treatment of schizophrenia for about two decades and extensive data have been accumulated with regard to its use in various parts of the world. However, in contrast to Western countries, there are few studies which have evaluated the usefulness of clozapine in Indian patients. This article attempts to review the available data on clozapine originating from India. This review reflects the fact that there are few studies from the Indian subcontinent and most of these are case reports. In view of the same, there is a need for further research to evaluate the effectiveness of clozapine in India.

An overview of Indian research in depression.

Depression as a disorder has always been a focus of attention of researchers in India. Over the last 50-60 years, large number of studies has been published from India addressing various aspects of this commonly prevalent disorder. The various aspects studied included epidemiology, demographic and psychosocial risk factor, neurobiology, symptomatology, comorbidity, assessment and diagnosis, impact of depression, treatment related issues and prevention of depression in addition to the efficacy and tolerability of various antidepressants. Here, we review data on various aspects of depression, originating from India.

Effectiveness of clozapine: A study from North India.

BACKGROUND: There are few studies from India which have evaluated the usefulness and tolerability of clozapine from India. AIM: To study the sociodemographic profile, clinical profile, comorbidity, side effects and outcome of subjects treated with clozapine. METHODS AND MATERIAL: For this study, the inpatient register was screened to obtain data of all patients admitted to the psychiatric inpatient unit during January 2000 to December 2006 and who were either started or continued on clozapine. Case records of 51 patients were taken up for the study. RESULTS: Majority of the patients who were started on clozapine were male (80.4%), single (70.6%), unemployed (70.6%), educated up to or beyond 10 years of schooling (86.3%) and belonged to nuclear families (64.7%). More than three-fourth's of them had received two or more adequate antipsychotic trials before being considered for clozapine. The mean dose of clozapine was 298.97mg/day. During the inpatient stay (mean duration 63 days), there was significant reduction (34.7%) in PANSS rating after starting clozapine. Sialorrhoea was the most common side effect, reported by 58.8% of subjects. In terms of long term outcome at a mean duration of 3.99 (SD 3.13) years after starting clozapine, 37 cases were on clozapine at the time of last follow-up. While receiving clozapine, three cases developed leucopenia and four patients developed seizures. CONCLUSION: Clozapine leads to reduction in psychopathology and sialorrhoea is the most common side effect reported.

Early intervention in schizophrenia.

Early intervention (EI) programs in schizophrenia and other psychoses are aimed at early detection (ED) of the disease; prevent conversion to manifested psychosis and phase-specific treatment to reduce development of chronic disabilities. EI strategies include targeting people at "high risk" for developing schizophrenia, intervening in prodromal phase of schizophrenia, and reducing the "duration of untreated psychosis" (DUP). Services are delivered by a specialized team and are usually resource intensive. Several strategies like treatment with antipsychotics, family interventions, and cognitive behavior therapy have been tried with modest success in prodromal patients. Significant ethical reservations exist regarding exposing prodromal patients to the stigma of labeling as "high risk for schizophrenia" and side effects of psychotropics in the absence of clear evidence of efficacy in favor of ED, intervention by specialist teams, and phase-specific interventions in prodrome of psychosis. More research is warranted to demonstrate the risk-benefit and cost-benefit of such interventions before these can be routinely recommended.

Long-term outcome of in-patients with substance use disorders: A study from North India.

BACKGROUND: Research into substance use disorders (SUD) has been unable to unequivocally demonstrate effectiveness of treatment modalities. AIMS: The aim of the study was to study the long-term outcome after in-patient treatment in a cohort of patients admitted for SUD in a deaddiction unit of a hospital in North India. MATERIALS AND METHODS: The case notes of all in-patients with a primary diagnosis of alcohol and/or opioid dependence syndrome (F10.24 and F11.24) in the calendar year 2006 were examined. All patients without any physical or mental comorbidity other than comorbid SUD were included in the study. They were contacted telephonically or their case notes examined in September, 2007. Status regarding abstinence or relapse was determined and data was analyzed. Independent samples t-test and chi-square test were used for determining significance of difference between continuous and categorical variables respectively. Kaplan-Meier analysis was applied to find the survival times of different groups with the duration to relapse as variable of interest. Log rank test was applied to find the significance of differences in various groups. Cox's Regression analysis was applied to find the hazard ratio. RESULTS AND CONCLUSIONS: Data for 59.22% of patients included in the study were available for analysis. Mean survival time was 36.35 weeks (28.74-43.95, 95% CI) for patients across different groups, 36.71 weeks (26.24-47.18, 95% CI) for the alcohol group, 34.00 weeks (8.37-59.36, 95% CI) for natural opioids group, 37.53 weeks (26.33-48.73, 95% CI) for semi/synthetic opioids group and 17.00 weeks (3.39-30.60, 95% CI) for the mixed group. Kaplan-Meier analysis revealed that those who were following-up at time of evaluation had significantly longer durations to relapse. Deaddiction services should stress on keeping patients on follow-up as a means to better outcomes.