Publications by authors named "Rk Chadda"

Background: Schizophrenia is a severe mental illness that greatly impacts the real-world functioning of patients. In India, caregivers are primarily responsible for their patients and function as their support system, often taking treatment decisions on their behalf. However, they may have insufficient knowledge of the illness, which can have a negative impact on their roles as effective caregivers.

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Background: The onset of psychosis brings unfamiliar experiences that can be disturbing for patients and their caregivers. Few studies from India (only one from North India) have examined these experiences from the perspective of the patient and caregiver. We explored experiences of first episode psychosis (FEP) patients and their caregivers within a North Indian context.

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Background: Home-based psychosocial care has the potential to improving outcomes in patients with schizophrenia and related disorders (SCZ). There is lack of India data for such care in early psychosis. We developed the "Saksham" programme, a bespoke self-managed home-based psychosocial care model, available in two formats: manual-based and mobile-application based.

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Background: Psychosocial interventions, crucial for recovery in patients with schizophrenia, have often been developed and tested in high income countries. We aimed at developing and validating home-based a booklet based psycho-social intervention with inputs from stakeholders: patients, families, and mental health professionals (MHP) for patients with schizophrenia and related disorders in low resource settings.

Methods: We developed a preliminary version of psychosocial intervention booklets based on six themes derived from focus group discussions conducted with patients, families, and MHP.

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Background: Standard assessment and management protocols exist for first episode psychosis (FEP) in high income countries. Due to cultural and resource differences, these need to be modified for application in low-and middle-income countries.

Aims: To assess the applicability of standard assessment and management protocols across two cohorts of FEP patients in North and South India by examining trajectories of psychopathology, functioning, quality of life and family burden in both.

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Background: Family caregivers provide essential support to their loved ones with schizophrenia with profound outcomes for themselves. The caregiver burden fails to consider the entire caregiving experience, which also incorporates positive aspects of caring. Many potentially significant variables are associated with this.

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Background And Aims: Caring for a person with schizophrenia entails considerable effort. The caregiving experience while caring for a person with schizophrenia has been described as both stressful and enriching. The literature on changes in caregiving experience with time has been fairly limited.

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A gap exists in published data on psychiatric emergencies presenting to Indian centers over the entire pandemic. We assessed 2,048 consecutive adult psychiatric emergencies for the period April 2019-September 2021 to compare 18 months following the onset of the pandemic, with the pre pandemic year as the control. Mean age was 33.

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Psychiatric sequelae may occur following traumatic injury irrespective of whether an insult has been caused to the brain. A range of psychiatric illnesses have been either causative of or associated with road traffic accidents and traumatic injuries, including depression, anxiety, post-traumatic stress disorder, substance use disorder and attention-deficit hyperactivity disorder. Despite literature on such associations, psychiatric intervention in the treatment of patients following traumatic injury is limited.

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Aims And Objectives: To assess the current patterns and experience of internet use among persons with depressive and anxiety disorders, particularly for health-related issues.

Methodology: In-depth interviews were conducted with persons diagnosed with depressive and anxiety disorders (DSM-5), aged ≥18 years who could read and write in Hindi/English, using an interview guide. The interview guide contained questions related to internet use in daily life, internet use for health-related issues, and internet use for stress, and internet use for anxiety/depressive disorder.

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Background: Alcohol use disorder has a substantial impact on patients' caregivers, leading to burden and adverse effects on their psychological health. Currently, there is limited literature which is available to suggest whether the burden and psychological distress of the family members change when patients with alcohol dependence undergo treatment. This study aimed to longitudinally examine the change in burden, depression, anxiety, and stress experienced by caregivers of patients with alcohol dependence undergoing treatment.

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Article Synopsis
  • Researchers identified biomarkers for diagnosing and treating Major Depressive Disorder (MDD) through a whole genome study in a North Indian population, examining gene expression in 72 MDD patients and 50 healthy controls.
  • The study found distinct gene expression patterns associated with MDD severity and treatment response, with involvement of immune and inflammatory pathways.
  • Additionally, significant biochemical differences were observed between MDD patients and healthy controls, highlighting key predictors like monocytes and creatinine that could aid in clinical diagnosis and understanding of MDD.
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Background And Aims: There is lack of research on somatic symptoms in schizophrenia. We aimed at finding prevalence and types of somatic symptoms in patients with schizophrenia and assessed their association with socio-demographic and clinical characteristics.

Methods: We assessed somatic symptoms using Patient Health Questionnaire-15 (PHQ-15) in 93 patients with schizophrenia diagnosed on ICD10-DCR.

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Purpose Of Review: Polysubstance use is very common in the world, but there has been limited research in this area. South Asia is sandwiched between two of the world's largest heroin producing areas: the Golden Crescent and the Golden Triangle. The burden and prevalence of polysubstance use have not been estimated in this region of the world.

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Background & Objectives: There is a possibility that vaccinated people may experience lesser psychological distress due to the sense of safety felt by them against getting the COVID-19 infection as compared to those who are not vaccinated. However, there is a paucity of research examining the mental health status of this important sub-group of population. Thus, the present study was aimed to examine the pattern of psychological distress and its correlates among people receiving COVID-19 vaccine.

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Objectives: To assess changes in profile of psychiatric emergencies in children and adolescents (aged <19 year) during the coronavirus disease 2019 (COVID-19) pandemic compared to pre-pandemic period.

Methods: The psychiatric emergency records were analyzed for the period of April, 2019 - September, 2021 to assess the pattern and profile of mental health emergencies in children and adolescents in the period before and after the onset of the pandemic lockdown (i.e.

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Background: Comparative studies of the naturalistic course of patients of opioid dependence on naltrexone and buprenorphine are likely to be helpful for clinical decision-making. The article aimed to report on the three-months naturalistic outcomes of patients discharged on naltrexone or buprenorphine from the same center.

Methods: Patients with opioid dependence who were discharged on either naltrexone ( = 86) or buprenorphine ( = 30) were followed up for three months for retention in treatment.

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Article Synopsis
  • - This study explores the genetic factors related to major depressive disorder (MDD) and how they influence treatment responses, aiming to compile a comprehensive list of genetic variants linked to the disorder and its treatment effectiveness.
  • - Researchers reviewed numerous studies to identify genetic variants associated with MDD susceptibility and antidepressant response, finding 31 replicated variants for MDD and 18 for treatment response.
  • - The analysis showed that a significant portion of these variants could potentially harm gene function or regulate it, suggesting they could be useful in diagnosing MDD and predicting treatment outcomes, but more focused studies are needed to validate these findings.
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Objective: Developing countries such as India face a major mental health care gap. Delayed or inadequate care can have a profound impact on treatment outcomes. We compared pathways to care in first episode psychosis (FEP) between North and South India to inform solutions to bridge the treatment gap.

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Objectives: We assessed and correlated neurochemical levels and cognitive functions in left dorsolateral prefrontal cortex (DLPFC) and left hippocampus in euthymic patients with bipolar disorder and compared these with healthy controls METHODOLOGY: Twenty-five right-handed euthymic patients (HAM-D score < 7, and YMRS score < 7) with bipolar disorder and 20 age and gender matched controls were compared for neurometabolites (n-acetylaspartate - tNAA, choline - Cho, creatinine - Cr, myoinositol - Ins, and glutamine/glutamate - Glu/Gln) measured in left DLPFC and left hippocampus using single voxel magnetic resonance spectroscopy (MRS) and cognitive functions assessed using trail making test (TMT - A and B), wisconsin card sorting test (WCST), and wechsler memory scale (WMS-III Indian adaptation).

Results: The two groups were comparable on socio-demographic variables. tNAA levels in DLPFC and hippocampus, and glutamate levels in hippocampus were found to be significantly lower and Inositol and glutamine levels in hippocampus were found to be significantly higher in patients as compared to controls.

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Introduction: The study aimed to evaluate COVID-19 associated psychological distress among pregnant and postpartum women during the second wave of COVID-19 in India.

Methods: A cross-sectional survey was done using a pre-validated tool involving 491 participants attending a tertiary-care hospital during the second wave of COVID-19 in India.

Results: Three-fourths of participants experienced negative emotions such as fear and various features of depression.

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