Viswanathan Ramakrishnan

Viswanathan Ramakrishnan

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Viswanathan Ramakrishnan

Department of Public Health Sciences, College of Medicine, Medical University of South Carolina, Charleston, SC, USA

Research Focus & Metrics

Academic Career Length

32Years (1995-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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1 January 2016 in Brain Stimulation
Verified
Journal Article
Closed access
PCPratik Y. Chhatbar
Pratik Y. Chhatbar
VRViswanathan Ramakrishnan
Viswanathan Ramakrishnan
SKSteve A Kautz
Steve A Kautz
MGMark S. George
Mark S. George
RARobert J. Adams
Robert J. Adams
WFWuwei Feng
Wuwei Feng

18 April 2018 in Arthritis Care & Research
Verified
Journal Article
Closed access
PDF file
EWEdith Williams
Edith Williams
JHJ. Madison Hyer
J. Madison Hyer
RVRamakrishnan Viswanathan
Ramakrishnan Viswanathan
TFTrevor D. Faith
Trevor D. Faith
DVDelia Voronca
Delia Voronca
LELeonard E. Egede
Leonard E. Egede

22 July 2022 in JMIR Formative Research
Verified
Journal Article
Open access
AGAmanda Gilmore
Amanda Gilmore
RLRuschelle M Leone
Ruschelle M Leone
DODaniel William Oesterle
Daniel William Oesterle
KDKelly Cue Davis
Kelly Cue Davis
LOLindsay M. Orchowski
Lindsay M. Orchowski
DKDebra Kaysen
Debra Kaysen
Background: Alcohol use and sexual assault are common on college campuses in the United States, and the rates of occurrence differ based on gender identity and sexual orientation. Objective: We aimed to provide an assessment of the usability and preliminary outcomes of Positive Change (+Change), a program that provides integrated personalized feedback to target alcohol use, sexual assault victimization, sexual assault perpetration, and bystander intervention among cisgender heterosexual men, cisgender heterosexual women, and sexual minority men and women. Methods: Participants included 24 undergraduate students from a large university in the Southwestern United States aged between 18 and 25 years who engaged in heavy episodic drinking in the past month. All procedures were conducted on the web, and participants completed a baseline survey, +Change, and a follow-up survey immediately after completing +Change. Results: Our findings indicated that +Change was acceptable and usable among all participants, despite gender identity or sexual orientation. Furthermore, there were preliminary outcomes indicating the benefit for efficacy testing of +Change. Conclusions: Importantly, +Change is the first program to target alcohol use, sexual assault victimization, sexual assault perpetration, and bystander intervention within the same program and to provide personalized content based on gender identity and sexual orientation. Trial Registration: ClinicalTrials.gov NCT04089137; https://clinicaltrials.gov/ct2/show/NCT04089137

5 April 2016 in The Journal of the American Dental Association
Verified
Journal Article
Open access
PDF file
JMJenna L. McCauley
Jenna L. McCauley
JHJ. Madison Hyer
J. Madison Hyer
VRV. Ramesh Ramakrishnan
V. Ramesh Ramakrishnan
RLRenata Leite
Renata Leite
CMCathy L. Melvin
Cathy L. Melvin
Kathleen T. BradyKathleen T. Brady
Kathleen T. Brady
Background Despite increased attention to dentists' roles in curbing opioid misuse, abuse, and diversion, information regarding prescribing practices and the frequency of multiple concurrent opioid prescriptions among dental patients is limited. Methods The authors reviewed South Carolina prescription drug monitoring program data representing dispensed medication for patients prescribed at least 1 opioid by a dentist during the most recently available 2-year time frame (2012-2013). The authors used descriptive analyses to examine the types and frequency of dental opioid prescriptions and the frequency of existing multiple concurrent opioid prescriptions among dental patients. Results Nearly all dispensed dental opioid prescriptions (99.9%; n = 653,650) were for immediate-release opioids and were initial prescription fills (96.2%). Hydrocodone (76.1%) and oxycodone (12.2%) combination products were the most frequently dispensed opioids prescribed by dentists. People younger than 21 years received 11.2% of dentist-prescribed opioids dispensed. Patients with multiple concurrent opioid prescriptions were identified within 30-day (n = 113,818), 90-day (n = 166,124), and 180-day (n = 205,576) time frames. Conclusions Dentists prescribed a high volume of the immediate-release opioids dispensed in South Carolina. A notable minority of dental patients had incidents of multiple preexisting opioid prescriptions, a factor implicated in patient misuse, abuse, overdose, and diversion. Practical Implications Use of a prescription drug monitoring program before prescribing provides a record of controlled substances dispensed to a patient and may inform prescribing, coordination of care, and addiction screening or referral. Patients should receive information regarding misuse behaviors and their risks, as well as the importance of secure storage and disposal of leftover opioid medications.

23 August 2019 in Trials
Verified
Journal Article
Open access
PDF file
EWEdith Williams
Edith Williams
LELeonard E. Egede
Leonard E. Egede
JOJames C. Oates
James C. Oates
CDClara L. Dismuke
Clara L. Dismuke
VRViswanathan Ramakrishnan
Viswanathan Ramakrishnan
JRJillian Rose
Jillian Rose
Systemic lupus erythematosus (SLE or lupus) is a chronic autoimmune disease that is associated with increased morbidity, mortality, healthcare costs and decreased quality of life. African Americans in the USA have three to four times greater prevalence of SLE, risk of developing SLE at an earlier age, and SLE-related disease activity, damage, and mortality compared with Caucasians, with the highest rates experienced by African American women. There is strong evidence that patient-level factors are associated with outcomes, which justifies targeting them with intervention. While evidence-based self-management interventions that incorporate both social support and health education have reduced pain, improved function, and delayed disability among patients with SLE, African Americans and women are still disproportionately impacted by SLE. Peer mentoring interventions are effective in other chronic conditions that disproportionately affect minorities, such as diabetes mellitus, HIV, and kidney disease, but there is currently no empirically tested peer mentoring intervention developed for patients with SLE. Preliminary data from our group suggest that peer mentoring improves self-management, reduces disease activity, and improves health-related quality of life (HRQOL) in African American women with SLE. This study will test an innovative, manualized peer mentorship program designed to provide modeling and reinforcement by peers (mentors) to other African American women with SLE (mentees) to encourage them to engage in activities that promote disease self-management. Through a randomized, “mentored” or “support group” controlled design, we will assess the efficacy and mechanism(s) of this intervention in self-management, disease activity, and HRQOL. This is the first study to test peer mentorship as an alternative strategy to improve outcomes in African American women with SLE. This could result in a model for other programs that aim to improve disease self-management, disease activity, and HRQOL in African American women suffering from chronic illness. The peer mentoring approach is uniquely fitted to African Americans, and this intervention has the potential to lead to health improvements for African American women with SLE that have not been attainable with other interventions. This would significantly reduce disparities and have considerable public health impact. ClinicalTrials.gov, NCT03734055 . Registered on 27 November 2018.

23 July 2024 in Trials
Verified
Journal Article
Open access
PDF file
WMWilliam J. Meurer
William J. Meurer
FSFlorian F. Schmitzberger
Florian F. Schmitzberger
SYSharon Yeatts
Sharon Yeatts
VRViswanathan Ramakrishnan
Viswanathan Ramakrishnan
BABenjamin S. Abella
Benjamin S. Abella
RSRobert Silbergleit
Robert Silbergleit
Background: Cardiac arrest is a common and devastating emergency of both the heart and brain. More than 380,000 patients suffer out-of-hospital cardiac arrest annually in the USA. Induced cooling of comatose patients markedly improved neurological and functional outcomes in pivotal randomized clinical trials, but the optimal duration of therapeutic hypothermia has not yet been established. Methods: This study is a multi-center randomized, response-adaptive, duration (dose) finding, comparative effectiveness clinical trial with blinded outcome assessment. We investigate two populations of adult comatose survivors of cardiac arrest to ascertain the shortest duration of cooling that provides the maximum treatment effect. The design is based on a statistical model of response as defined by the primary endpoint, a weighted 90-day mRS (modified Rankin Scale, a measure of neurologic disability), across the treatment arms. Subjects will initially be equally randomized between 12, 24, and 48 h of therapeutic cooling. After the first 200 subjects have been randomized, additional treatment arms between 12 and 48 h will be opened and patients will be allocated, within each initial cardiac rhythm type (shockable or non-shockable), by response adaptive randomization. As the trial continues, shorter and longer duration arms may be opened. A maximum sample size of 1800 subjects is proposed. Secondary objectives are to characterize: the overall safety and adverse events associated with duration of cooling, the effect on neuropsychological outcomes, and the effect on patient-reported quality of life measures. Discussion: In vitro and in vivo studies have shown the neuroprotective effects of therapeutic hypothermia for cardiac arrest. We hypothesize that longer durations of cooling may improve either the proportion of patients that attain a good neurological recovery or may result in better recovery among the proportion already categorized as having a good outcome. If the treatment effect of cooling is increasing across duration, for at least some set of durations, then this provides evidence of the efficacy of cooling itself versus normothermia, even in the absence of a normothermia control arm, confirming previous RCTs for OHCA survivors of shockable rhythms and provides the first prospective controlled evidence of efficacy in those without initial shockable rhythms. Trial registration: ClinicalTrials.gov NCT04217551. Registered on 30 December 2019.