Publications by authors named "Ravindra Rao"

Article Synopsis
  • This study investigates the patterns of amphetamine-type stimulant (ATS) use and high-risk behaviors among adults in Manipur, India, revealing that the majority of users engage in daily use and dependence on substances.
  • Most participants reported significant health issues related to ATS, including a tendency to inject drugs and risky sexual behavior, such as unprotected sex.
  • The findings indicate a need for targeted strategies in India to address and reduce ATS use and its associated physical and psychological consequences.
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Article Synopsis
  • - This study aimed to understand how opioid users and their peer educators in Kolkata view treatment and overdose risks related to opioid use.
  • - Researchers conducted in-depth interviews with 20 opioid users and six peer educators, identifying key themes around knowledge, treatment effectiveness, and awareness of overdose resources like naloxone.
  • - The results highlight a critical need for better training and support for opioid users in recognizing overdoses and administering life-saving interventions, which can inform future policymaking to combat the opioid crisis.
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Various factors limit the acceptability of methadone as an opioid agonist treatment (OAT), in which case, buprenorphine becomes the preferred alternative. The classical approach is to gradually taper methadone to a low dose and buprenorphine is initiated after some opioid-free period, which generally takes weeks. A novel approach known as 'microdosing' or the 'Bernese method' might serve as a valuable alternative.

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Background: Naltrexone is a Food and Drug Administration (FDA)-approved anti-craving agent for the long-term treatment of alcohol dependence syndrome (ADS). However, it may not be equally effective in all patients. This study aims to assess naltrexone treatment response over four weeks in a national-level tertiary care setting.

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Background Untreated co-occurring substance use and substance use disorders (SUDs) in patients with medical conditions may be associated with unfavourable medical outcomes. Understanding the prevalence of substance use and SUDs among patients admitted to hospital for medical illness may help in developing appropriate strategies to manage SUDs in this population and improve the outcomes of medical illness. We assessed the prevalence of substance use and SUDs among patients admitted for medical illnesses and the association between substance use and medical illness.

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Introduction: Opioid agonist treatment (OAT) is an effective treatment for opioid dependence syndrome in adults. However, studies on effectiveness of OAT in adolescents are limited; existing studies show varying retention rates. The present study aimed to assess OAT retention rates in adolescent patients with opioid dependence syndrome registered in a community drug treatment clinic in Delhi, India, and to analyse factors associated with retention at 1 year.

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Background: Methadone take-home doses for opioid dependence treatment are strictly regulated due to diversion and overdose concerns, so patients must visit the clinic daily for dispensing. This was also done in India until the COVID-19 pandemic, when lockdown restriction compelled take- home dispensing of methadone. This study examined experience of patients who received take- home methadone during COVID-19 pandemic in India.

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is one of the biggest and complex genera of the Acanthaceae family. is commonly known as 'Adosa'. It is an ayurvedic medicine with a medicinal history of more than a thousand years in India.

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Background: Sleep disturbances are seen even in individuals on opioid agonist treatment (OAT). Established pharmacotherapy for sleep disturbances such as benzodiazepines have misuse potential and increased mortality risk in patients with OAT. No study has explored the role of trazodone on sleep disturbance in individuals maintained on buprenorphine.

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Background: The balloon expandable Myval transcatheter heart valve (THV) showed encouraging results regarding residual aortic regurgitation (AR) from multiple observational studies. The newly designed Myval Octacor has been introduced recently, aiming for a reduction in AR and improved performance.

Objectives: The focus of this study is to report the incidence of AR using the validated quantitative Videodensitometry angiography technology (qLVOT-AR%) in the first in human use of the Myval Octacor THV system.

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Aim: Ethyl glucuronide (EtG) in hair is a direct biomarker proven to be useful for the detection of chronic excessive alcohol use. This study investigated the association of self-reported alcohol consumption with traditional biomarkers: GGT, AST, ALT, CDT, and MCV in blood and a direct biomarker, hair EtG, in a total of 122 patients with alcohol dependence syndrome. The diagnostic accuracy of the biomarkers to differentiate heavy from non-heavy drinkers was also evaluated.

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Background: Integrating mobile technologies in healthcare (mHealth) is helpful to manage various medical conditions. mHealth applications can bridge the gap in the management of patients with opioid use disorder (OUD). Research evaluating the feasibility of mHealth to address OUD is limited in developing countries.

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Background: Opioid-dependent patients undergoing opioid substitution therapy (OST) consume alcohol in a hazardous pattern which adversely affects their treatment outcome. This study aims to measure alcohol biomarkers to screen for secondary alcohol use in OST patients.

Methods: A pilot study was planned to measure alcohol biomarkers (AST, ALT, GGT, and CDT) to assess alcohol use in OST patients from three community clinics.

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Background: Chronic opioid use affects biological functioning implicating the hematopoietic and immune system. It may alter various hematological parameters and inflammatory markers. This study aimed to assess the association of opioid dependence with the hematological parameters and inflammatory markers in the Indian population.

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Substance use disorder impacts the lives of significant others, more especially the wives of individuals using substances. However, the physical and mental health issues among wives of people who inject drugs (PWID) are less studied. The current cross-sectional, multisite study assessed the physical and mental health of wives of 433 PWID across six sites in Delhi.

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Objective: Calcified coronaries still remain a major challenge for interventional cardiologist. This study aims to evaluate safety and efficacy of intravascular lithotripsy (IVL) in management of coronary artery calcification.

Methods: This was a retrospective single centre study regarding the utility of IVL in management of calcified coronaries.

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Background/objective: The most recent versions of the two main mental disorders classifications-the World Health Organization's ICD-11 and the American Psychiatric Association's DSM-5-differ substantially in their diagnostic categories related to transgender identity. ICD-11 gender incongruence (GI), in contrast to DSM-5 gender dysphoria (GD), is explicitly not a mental disorder; neither distress nor dysfunction is a required feature. The objective was compared ICD-11 and DSM-5 diagnostic requirements in terms of their sensitivity, specificity, discriminability and ability to predict the use of gender-affirming medical procedures.

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India has a huge burden of substance use disorder (SUD). The national response to the problem of SUD has been to support addiction treatment centers either in government hospitals or in nongovernmental settings. The existing number of addiction treatment facilities is less compared to the burden of substance use in India.

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Objective: To assess the implementation of a mobile dispensing service to improve opioid users' access to methadone maintenance therapy.

Methods: In March 2019, we started mobile methadone dispensing in an urban underprivileged locality in Delhi, India. The doctor was available only at the main community drug treatment clinic for clinical services, while the nurse dispensed methadone from a converted ambulance.

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Objectives: To assess the cognitive functions in participants maintained on buprenorphine for opioid dependence at peak and trough buprenorphine levels.

Methods: This was a double-blind, randomized, experimental study. Sixty participants maintained on buprenorphine were matched for age and education and randomly allocated to "peak" group or "trough" group.

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Chronic pain is associated with higher rates of psychiatric comorbidity, including substance use disorders. Patients with chronic pain often require opioids for their pain relief. Often, clinicians are reluctant to prescribe opioids to patients with chronic pain due to fear of patients becoming dependent on opioids.

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