Author Interviews, Melanoma, Vaccine Studies / 16.11.2020

MedicalResearch.com Interview with: Nina Bhardwaj MD, PhD Professor of Medicine (Hematology and Medical Oncology) and Urology Tisch Cancer Institute Icahn School of Medicine at Mount Sinai New York, NY MedicalResearch.com: What is the background for this study? What types of cancer may be amenable to this vaccine? Response: The goal was to determine if vaccine responses could be improved by increasing special white cell numbers, namely dendritic cells, which are key for jumpstarting an immune response. MedicalResearch.com: What are the main findings?  Response: We found that the agent flt3-L mobilized these dendritic cells which help to improve the vaccine’s ability to prime the immune system.  (more…)
Author Interviews, COVID -19 Coronavirus, Occupational Health / 16.11.2020

MedicalResearch.com Interview with: Emily Barrett, PhD Associate Professor Department of Biostatistics and Epidemiology Rutgers School of Public Health MedicalResearch.com: What is the background for this study? Response: We started this study in the very early stages of the pandemic to look at SARS-CoV-2 viral transmission and disease severity in health care workers as compared to non-health care workers.  There was a tremendous amount of fear and uncertainty about the virus and the early anecdotal reports coming out of China and Italy highlighted the plight of many frontline health care workers who had been infected on the job. We knew that our U.S. health care workers would soon be facing this tremendous challenge. We started this study to examine risks of infection in our vulnerable frontline health care workers and a comparison group of non-health care workers. Our results are from the early stages of the U.S. pandemic in March-April 2020. (more…)
Author Interviews, Genetic Research / 16.11.2020

MedicalResearch.com Interview with: Philippe M Soriano, PhD Professor,  Cell, Developmental & Regenerative Biology and Oncological Sciences Icahn School of Medicine at Mount Sinai MedicalResearch.com: What is the background for this study? Response: The study was performed primarily to help understand how signals sent from growth factors to their receptors on the cell surface (see reply to the following question) initiate a cascade of events within the cells that lead to proliferation, survival, or other biological responses. This is important to know because deregulation of many of these pathways can lead to cancers. MedicalResearch.com: Would you explain what is meant by FGFs and their interaction with RTKs? Response: FGFs are cell signaling proteins that are also known as growth factors because they often lead to cell proliferation. They act by binding to receptors on the cell surface that are part of a family of receptor tyrosine kinases (RTKs). These RTKs are transmembrane proteins that have a domain outside of the cell that binds to the growth factor and a domain within the cell that has tyrosine kinase activity, hence the name “receptor tyrosine kinase (RTK).” This enzymatic activity adds a phosphate to a tyrosine residue of target proteins and starts a typical signal transduction pathway (referred to in the paper as “canonical”) leading to the usual biological responses (proliferation, survival, migration, etc.) (more…)
Author Interviews, Cancer Research, JAMA, Prostate Cancer, Technology / 13.11.2020

MedicalResearch.com Interview with: Dave Steiner MD PhD Clinical Research Scientist Google Health, Palo Alto, California MedicalResearch.com: What is the background for this study? Response: For prostate cancer patients, the grading of cancer in prostate biopsies by pathologists is central to risk stratification and treatment decisions. However, the grading process can be subjective, often resulting in variability among pathologists. This variability can complicate diagnostic and treatment decisions. As an initial step towards addressing this problem, we and others in the field have recently developed artificial intelligence (AI) algorithms that perform on-par with expert pathologists for prostate cancer grading. Such algorithms have the potential to improve the quality and efficiency of prostate biopsy grading, but the impact of these algorithms when used by pathologists has not been well studied. In the current study, we developed and evaluated an AI-based assistant tool for use by pathologists while reviewing prostate biopsies. (more…)
Author Interviews, Gout, Rheumatology / 12.11.2020

MedicalResearch.com Interview with: Jeffrey D. Kent, M.D., FACG, FACP Executive Vice President, Medical Affairs and Outcomes Research Horizon MedicalResearch.com: What is the background for this study? What is the marker for reduced immunogenicity with Pegloticase?   Response: Pegloticase is a recombinant, pegylated uricase that is used for treatment of chronic gout in patients who fail oral urate lowering therapy (uncontrolled gout) and has a demonstrated impact on the serum uric acid (sUA) level. As with other biologics, in some people the body’s immune system develops anti-drug antibodies and reduces the effectiveness of the biologic therapy.  Recent case series and open-label trials have suggested that using an immunomodulator with pegloticase has the potential to increase the durability of response so patients can receive a full course of therapy. Researchers in the RECIPE trial sought to examine whether the co-administration of disease-modifying antirheumatic drugs (DMARDs), specifically mycophenolate mofetil, may mitigate this loss of efficacy and increase in response rates for people living with uncontrolled gout (more…)
Author Interviews, COVID -19 Coronavirus, JAMA / 12.11.2020

MedicalResearch.com Interview with: Brunella Posteranno PhD Associate Professor of Microbiology Department of Medical and Surgical Sciences Rome, Italy MedicalResearch.com: What are the main findings? Response: This study arises from an attempt to clarify some recent evidences of positive real-time PCR (RT-PCR) test results among patients who recovered from COVID-19 with prior negative results. Retesting positive for SARS-CoV-2 RNA, in the absence of any symptoms suggestive of new infection, poses questions regarding not only the SARS-CoV-2 infection course but also, most importantly, the infectivity status of recovered COVID-19 patients. In other words, it is unknown whether such patients are infectious and whether they should be quarantined. Detecting genetic sequences (i.e., RNA) of SARS-CoV-2 in respiratory samples (e.g., nasal/oropharyngeal swab samples) by RT-PCR assays enable us to identify persons suffering from COVID-19 along with those who have been exposed and able to transmit virus to others even if they are asymptomatic. It is not hyperbole to say that without RT-PCR testing an effective fight against the virus would be impossible. However, RT-PCR assays are not a viral culture and do not allow to determine whether the virus is viable and, consequently, transmissible. In this study, we investigated RT-PCR retested positive nasal/oropharyngeal swab (NOS) samples from recovered COVID-19 patients for the presence of replicative SARS-CoV-2 RNA to assess active virus replication.  (more…)
Annals Internal Medicine, Author Interviews, Kidney Disease, Pediatrics / 12.11.2020

MedicalResearch.com Interview with: Prof. Dr. Hans Pottel PhD Professeur Invité (titre honorifique) Faculté de Médecine Université de Liège KULeuven-KULAK, Kortrijk, Belgium  MedicalResearch.com: What is the background for this study? Why do we need a new GFR? Response: The currently recommended equations have flaws, mainly because there is one equation (CKiD) recommended for children, and one recommended (CKD-EPI) for adults (by KDIGO). When transitioning from pediatric nephrology care to adult nephrology care, the switch from CKiD to CKD-EPI causes implausible jumps (of more than 50%), mainly because CKD-EPI largely overestimates GFR in young adults (18-30 years). The new equation overcomes this problem as it applies for all ages (for children and adults) and overcomes the known flaws of the currently most used equations. The new equation is less biased and more precise across the full age spectrum and for the full range of serum creatinine concentrations. The equation was developed in 11 251 participants from 7 cohorts (development and internal validation datasets) and validated in 8 378 participants from 6 cohorts (external validation dataset). Data were coming from European and American nephrology centers. No patients of African-American ancestry were included. Actually, the previously published FAS-equation served as the basic mathematical form for the equation, but we adjusted the power coefficients for serum creatinine (very much like it was done in the CKD-EPI equation). You could say that we used properties of both the FAS and CKD-EPI equation to come to an improved equation to estimate GFR. (more…)
Author Interviews, COVID -19 Coronavirus, Depression, Mental Health Research, Occupational Health, Pediatrics, UCSF / 11.11.2020

MedicalResearch.com Interview with: Kyle T. Ganson, PhD, MSW Assistant Professor, Factor-Inwentash Faculty of Social Work University of Toronto Toronto, Canada   Jason Nagata, MD, MSc Assistant Professor of Pediatrics University of California, San Francisco San Francisco, California, USA     MedicalResearch.com: What is the background for this study? Response: A quarter of young adults in the US have reported being unemployed during the COVID-19 pandemic. Young adults may be especially affected by employment loss as they often work in industries most adversely affected by social distancing. MedicalResearch.com: What are the main findings? Response: Among a sample of nearly 5,000 young adults age 18 to 26 in the US, we found that since March 2020, young adults who lost their job or were part of a household that experienced employment loss were more likely than those with secure employment to experience four common symptoms of anxiety and depression. This was also true of young adults who expected an employment loss in the next four weeks. The study also found that symptoms of anxiety and depression were common among the sample of young adults. In the seven days prior to the survey, 75% reported being nervous, anxious or on edge, 68% reported not being able to stop or control worrying, 67% reported having little interest or pleasure in doing things, and 64% reported feeling down, depressed, or hopeless. (more…)
Author Interviews, Baylor College of Medicine Houston, Smoking, Tobacco Research / 11.11.2020

MedicalResearch.com Interview with: Mahmoud Al Rifai, MD, MPH Cardiovascular Disease Fellow Baylor College of Medicine Houston, TX Salim S. Virani, MD, PhD, FACC, FAHA, FASPC Professor, Section of Cardiovascular Research Director, Cardiology Fellowship Training Program Baylor College of Medicine Staff Cardiologist, Michael E. DeBakey Veterans Affairs Medical Center Co-Director, VA Advanced Fellowship in Health Services Research & Development at the Michael E. DeBakey VA Medical Center Investigator, Health Policy, Quality and Informatics Program Michael E. DeBakey Veterans Affairs Medical Center HSR&D Center of Innovation Houston, TX MedicalResearch.com: What is the background for this study? What are the main findings? Response: E-cigarettes have gained popularity since their introduction in the U.S. market nearly 20 years ago and their use has increased especially among younger adults. On the other hand, public health efforts aimed at curbing tobacco use over the past few decades have resulted in a decrease in cigarette use. However, state-specific laws and regional cultural differences with regards to perception of these products may result in variability in tobacco use patterns. We therefore evaluate temporal changes in e-cigarette and cigarette use in each U.S. state between the years 2016 to 2018. (more…)
Aging, Author Interviews, Geriatrics, Heart Disease, Lancet, Lipids / 11.11.2020

MedicalResearch.com Interview with: Børge G. Nordestgaard, MD, DMSc Professor, University of Copenhagen Chief Physician, Dept. Clinical Biochemistry Herlev and Gentofte Hospital Copenhagen University Hospital Herlev, Denmark  MedicalResearch.com: What is the background for this study? Response: Previous studies have yielded mixed results regarding the association between elevated cholesterol levels and increased risk of atherosclerotic cardiovascular disease in individuals above age 70 years; with some studies showing no association and others only minimal association. However, these previous studies were based on cohorts recruiting individuals decades ago where life-expectancy were shorter and where treatment of comorbidities were very different from today (more…)
Author Interviews, COVID -19 Coronavirus, Nutrition, Pediatrics, UCSF / 11.11.2020

MedicalResearch.com Interview with: Jason M Nagata M.D., M.Sc Assistant Professor of Pediatrics Division of Adolescent and Young Adult Medicine Department of Pediatrics, University of California San Francisco, San Francisco, CA MedicalResearch.com: What is the background for this study? Response: During the COVID-19 pandemic, food insecurity is expected to rise given economic uncertainty and job losses. Vulnerable and marginalized populations are disproportionately affected by both COVID-19 and food insecurity.   (more…)
Author Interviews, Cancer Research / 10.11.2020

MedicalResearch.com Interview with: Brianna M. Jones, MD Icahn School of Medicine at Mount Sinai New York, NY MedicalResearch.com: What is the background for this study? Response: Oral tongue cancer has traditionally been a diagnosis associated with older age and habitual tobacco or alcohol use. However, in the past few decades there has been a disproportionate increase in oral tongue cancer in young patients, particularly in those without a prior history of significant alcohol or tobacco use. In the literature, these young patients without traditional risk factors seem to represent a distinct clinical entity with worse oncologic outcomes. The purpose of this study was to compare young patients (age ≤45) to older patients (>45) with oral tongue squamous cell carcinoma (OTSCC) without habitual smoking or drinking history.  (more…)
Author Interviews, BMJ, Breast Cancer, Cancer Research, Radiation Therapy / 10.11.2020

MedicalResearch.com Interview with: Professor Jayant S Vaidya MBBS MS DNB FRCS PhD Professor of Surgery and Oncology University College London MedicalResearch.com: What is the background for this study? What type of single dose radiation is used?  Response: The findings of the large international randomised trial (TARGIT-A trial), published in the British Medical Journal (BMJ 2020;370:m2836), confirm the long-term effectiveness of Targeted Intraoperative Radiotherapy (TARGIT-IORT): a breast cancer treatment which is increasingly available throughout the world. For most women with early breast cancer, a single dose of targeted radiotherapy during surgery is just as effective as conventional radiotherapy, which requires several visits to hospital after surgery. Conventional external beam radiotherapy (EBRT) is delivered from outside the body via a radiotherapy machine (linear accelerator), and consists of a daily treatment session (known as fractions) to the whole breast, over a period between three to six weeks. Each of these treatments is given over a few minutes, but requires 15 to 30 hospital visits, which could be a significant distance from where the patient lives. TARGIT-IORT is delivered immediately after lumpectomy (tumour removal), via a small ball-shaped device placed inside the breast, directly where the cancer had been. The single-dose treatment lasts for around 20 to 30 minutes and replaces the need for extra hospital visits, benefiting both patient safety and well-being. The device used is called INTRABEAM. More details are described on the BMJ and UCL webpages: https://www.bmj.com/company/newsroom/single-dose-radiotherapy-as-good-as-conventional-radiotherapy-for-most-women-with-early-breast-cancer/ https://www.ucl.ac.uk/news/2020/aug/single-dose-radiotherapy-effective-treating-breast-cancer https://blogs.bmj.com/bmj/2020/08/20/targeted-intraoperative-radiotherapy-for-early-breast-cancer-new-evidence/ (more…)
Author Interviews, Cannabis, Ophthalmology, Race/Ethnic Diversity, Social Issues / 09.11.2020

MedicalResearch.com Interview with: Joshua Uhr MD Ophthalmologist Philadelphia, PA MedicalResearch.com: What is the background for this study? Response: Disparities in American society have been at the forefront of the public consciousness in recent months. As part of the larger discussion about inequality, disparities in health outcomes have received much attention. In light of the renewed recognition that these disparities are stark and widespread, we felt it important to evaluate disparities in our own field, ophthalmology. Previous studies have shown disparate outcomes for individual eye conditions, such as glaucoma, cataract, and retinal detachment. Although the common and relevant endpoint of these is visual impairment, few prior studies have examined disparities in visual impairment more broadly. Our aim was to provide an updated analysis of disparity in visual impairment among adults in the United States based on race and socioeconomic status.  (more…)
Author Interviews, COVID -19 Coronavirus, Race/Ethnic Diversity, Rheumatology, UCSF / 07.11.2020

MedicalResearch.com Interview with: Milena Gianfrancesco, PhD, MPH Assistant Professor. Education Division of Rheumatology, Department of Medicine University of California, San Francisco MedicalResearch.com: What is the background for this study? Response: This study utilized data from the COVID-19 Global Rheumatology Alliance Provider Survey, which launched on March 25th. To date, it has collected information on over 6,000 patients with rheumatic disease diagnosed with COVID-19 from over 40 countries worldwide. As COVID-19 spread across the world in the spring, and especially within the United States, it became clear that the disease was impacting certain groups more than others. Growing attention and research began to illustrate the disproportionate burden of COVID-19 among racial/ethnic minorities in the United States. We know that racial and ethnic minorities experience a higher burden of rheumatic disease risk and severity; therefore, our group was interested in examining whether the disproportionate burden of COVID-19 also affected this susceptible population. (more…)
Author Interviews, COVID -19 Coronavirus, Hearing Loss / 06.11.2020

MedicalResearch.com Interview with: Dr Eldré Beukes PhD Clinical Scientist in Audiology Clinical Audiologist: Spire Cambridge Lea Hospital Associate lecturer: Anglia Ruskin University, Cambridge MedicalResearch.com: What is the background for this study? Would you briefly explain what is meant by tinnitus? Response: Tinnitus is characterised by hearing unwanted sounds, such as a ringing or buzzing, without a corresponding sound in the environment. It is one of the most frequently occurring chronic conditions, affecting 1 in 8 adults worldwide. People with tinnitus are found to be at higher risk of lower emotional wellbeing, depression and anxiety. This led our team to realise that tinnitus may be more problematic as a result of the added stress and anxiety brought on by the pandemic. As such, we initiated an exploratory study to examine changes in tinnitus during the pandemic. (more…)
Author Interviews / 06.11.2020

MedicalResearch.com Interview with: Emily S. Barrett, PhD Rutgers School of Public Health Environmental and Occupational Health Sciences Institute Piscataway, NJ 08854  MedicalResearch.com: What is the background for this study? Response: As the covid-19 pandemic hit the us, it became clear that health care workers were potentially at risk and there was great concern for frontline doctors and nurses treating infected patients. With the health and safety of our hospital staff in mind, we offered covid-19 virus and antibody testing to all of the hospital employees. (more…)
Author Interviews, Columbia, JAMA, OBGYNE, Weight Research / 05.11.2020

MedicalResearch.com Interview with: Marisa N. Spann, PhD, MPH Columbia University Irving Medical Center New York, New York MedicalResearch.com: What is the background for this study? Response: Prior research has demonstrated that higher maternal pre-pregnancy body mass index is associated with adverse long-term outcomes for offspring including obesity, poorer cognitive and social abilities, and increased risk of psychiatric disorders.  MedicalResearch.com: What are the main findings? Response: In this study, we investigated the association of maternal pre-pregnancy body mass index with fetal growth and neonatal functional connectivity and found that maternal pre-pregnancy BMI has a significant positive correlation with fetal weight and with greater thalamic connectivity of the brain.  (more…)
Author Interviews, Cancer Research, Colon Cancer / 05.11.2020

MedicalResearch.com Interview with: Hisham Hussan, MD, FACG The Ohio State University Wexner Medical Center  MedicalResearch.com: What is the background for this study? Response: Early-onset colorectal cancer (i.e., CRC diagnosed before 50 years of age) is predicted to rise to 10.9% of all colon and 22.9% of all rectal cancers by 2030. Some studies identified an association between early-onset CRC and obesity. By contrast, other studies found a similar body mass index (BMI) between adults with and without early-onset CRC. These conflicting findings are possibly due to weight loss from colorectal cancer that may obscure its relation to obesity. (more…)
AHA Journals, Author Interviews, Blood Pressure - Hypertension, Circadian Rhythm / 05.11.2020

MedicalResearch.com Interview with: Kazuomi Kario, MD, PhD, FACP, FACC, FAHA, FESC, FJCS Professor, Chairman Division of Cardiovascular Medicine, Department of Medicine, Jichi Medical University School of Medicine (JMU) JMU Center of Excellence, Cardiovascular Research and Development (JCARD) Hypertension Cardiovascular Outcome Prevention and Evidence in Asia (HOPE Asia) Network Shimotsuke, Tochigi, 329-0498, JAPAN MedicalResearch.com: What is the background for this study? Response: To date, it remains unclear whether disrupted blood pressure (BP) circadian rhythm is associated with adverse outcomes independent of nighttime BP. The JAMP study includes 6359 outpatient population who had ambulatory BP monitoring to evaluate the association between both nocturnal hypertension and nighttime BP dipping patterns and the occurrence of cardiovascular events in patients with hypertension. (more…)
Author Interviews, Brigham & Women's - Harvard, COVID -19 Coronavirus / 05.11.2020

MedicalResearch.com Interview with: Duane Wesemann, MD, PhD Div. of Rheumatology, Immunology and Allergy Brigham and Women's Hospital Boston, MA 02115 Wesemann Lab   MedicalResearch.com: What is the background for this study? Response: There is a lot of variability in how long antibodies to pathogens are produced in humans.  Some infections and vaccinations like measles induce high levels of antibodies that can be produced for a lifetime.  Other infections or vaccinations induce only short lived antibody responses. Also, some people make longer lasting antibodies compared to others.   We wanted to ask what the antibody durability dynamics looked like after COVID-19 and if we could tease out any insights—both with regard to COVID-19 as well as in general.  (more…)
Author Interviews, Surgical Research / 03.11.2020

MedicalResearch.com Interview with: Dr. Pravesh S. Gadjradj, MD Department of Neurosurgery, Leiden University Medical Center, University Neurosurgical Center Holland Leiden, Netherlands neurosurgery brain surgery ct scan MedicalResearch.com: What is the background for this study? What are the main findings?  Response: Many healthcare professionals throughout the world face issues surrounding medical malpractice at some point in their careers. Unfortunately, a number of these cases turn into medical malpractice lawsuits. As a specialty that treats acute pathology and refractory pain, neurosurgery is at risk for high liability. By the means of a survey among members of the Congress of Neurological Surgeons (CNS), we aimed to illustrate how malpractice lawsuits affect neurosurgeons professionally, emotionally and financially.   MedicalResearch.com: What are the main findings?  Response: Some 490 members of the CNS shared their experiences with us. Among these members, 81% faced a medical malpractice lawsuit. The main concerns expressed about being sued included losing confidence and practicing defensive medicine, personal assets being at risk, and being named in the National Practitioner Data Bank. Of the respondents, 40% stated they were frequently or always concerned about being sued, and 77 % stated their fear had led to a change in how they practice medicine. For 58 %, this change led to the practice of defensive medicine, while for others it led to more extensive documentation (14%) and/or to referring or dropping complex cases (12%). Given the medical malpractice environment, 59% of respondents considered referring complex patient cases, whereas 37% considered leaving the practice of medicine. (more…)
Author Interviews, Brigham & Women's - Harvard, COVID -19 Coronavirus, Occupational Health / 03.11.2020

MedicalResearch.com Interview with: Fan-Yun Lan, MD, MS PhD candidate in Population Health Sciences | Environmental Health Graduate School of Arts and Sciences & T.H. Chan School of Public Health Harvard University MedicalResearch.com: What is the background for this study? Response: Existing evidence has indicated that essential workers are heavily affected by the COVID-19 pandemic, as they are not able to benefit from mitigation policies. Their occupational exposures increase their own risk to SARS-CoV-2 infection, and increase the risk of secondary transmissions to their colleagues, families and communities. Research, however, has largely focused on healthcare workers with relatively limited literature investigating non-healthcare essential workers. (more…)
Author Interviews, Cancer Research, Journal Clinical Oncology, University of Pittsburgh / 03.11.2020

MedicalResearch.com Interview with: Kristine Gade, MD Hematology/Oncology Fellow UPMC Hillman Cancer Center MedicalResearch.com: What is the background for this study? Would you briefly describe the “surprise question”?  Response:  Via Oncology Pathways, a cancer care platform used by UPMC and other institutions across the country, asks physicians to answer the surprise question – “Would I be surprised if this patient died in the next 12 months?” – whenever a new treatment plan is implemented.   This question has been widely adopted by many oncology and palliative care frameworks and has been shown to be modestly predictive of mortality in multiple studies.  We know that advanced cancer patients have a high utilization of the emergency department, even near end of life.  Our group wanted to see if we could use the results of the surprise question to easily and quickly communicate to emergency department providers the expected prognosis for our advanced cancer patients.  First, we set out to assess the surprise question’s ability to predict survival among our UPMC Hillman Cancer Center patients with select stage IV cancer diagnoses.   (more…)
Asthma, Author Interviews / 03.11.2020

MedicalResearch.com Interview with: https://www.gsk.com/en-gb/home/Beth Hahn, PhD, Director U.S. Value Evidence and Outcomes, GlaxoSmithKline, Research Triangle Park, NC MedicalResearch.com: What is the background for this study? Response: Biologic therapies are increasing as a treatment for patients with severe asthma, with multiple therapies approved by the FDA.  There is also an increasing understanding of the factors influencing preference for and adherence to biologic therapies for patients with severe asthma; however, little is known about why patients discontinue biologic therapy. In patients who have access to biologic treatment, understanding the circumstances and asthma characteristics associated with discontinuation of biologic therapy may allow for the identification of barriers to treatment success . The objective of this study of cross-sectional physician and patient survey data was to assess the patient characteristics and the given reasons for treatment discontinuation in a US patient cohort with severe asthma treated with biologic therapy. A total of 117 physicians and 285 patients completed surveys with 70% of patients continuing biologic therapy (N=200). This study included a number of different FDA approved biologics. From the perspectives of the physicians included in the current study (85 providing a rationale for discontinuation), the majority reported a lack of symptom control, particularly shortness of breath (46%), exacerbations (26%) and other chronic symptoms (29%), as a key reason for discontinuing biologic therapy in severe asthma. Symptom control was also key for patients, with these three symptom categories among their top six reasons for biologic discontinuation. The cost of biologic treatment was also an important factor, cited as the 5th most common reason for discontinuation among physicians and the 3rd among patients. (more…)
Author Interviews, COVID -19 Coronavirus, JAMA / 02.11.2020

MedicalResearch.com Interview with: Darpun D. Sachdev, M.D. Case investigation and Contact tracing Branch Chief SFDPH Covid Command Center San Francisco Department of Public Health MedicalResearch.com: What is the background for this study? What are the main findings? Response: The ultimate goal of contact tracing is to rapidly identify and isolate contacts who are COVID-19 positive before they have time to transmit to others. As mentioned in the published research letter by SFDPH, through JAMA, during early shelter-in-place (from April to June 2020), our contact tracing program successfully reached greater than 80% of cases and contacts within a median timeframe of 6 days from the onset of their case’s symptoms. Approximately 10% of named contacts were newly diagnosed with COVID-19 (compared to 2% positivity during this time period). Household contacts made up approximately 80% of all identified contacts, but 90% of contacts who tested positive lived in the same household as the case. Secondary cases (contacts who were found to be newly diagnosed with COVID-19) were traced and quarantined within 6 days of the case’s symptom onset. With that said, the 6-day time difference between symptom onset and contact notification raises concern regarding the overall effectiveness of tracing in preventing onward transmission by infected contacts. We are working with community-based organizations to scale up access to testing and culturally competent tracing and wraparound services. Currently, we have now decreased the time difference to 5 days. Moreover, given that the majority of contacts resided in the same household, transmission could have occurred presymptomatically such that by the time infected contacts were identified, they might have already transmitted the virus. Hence, why SFDPH, on May 5, 2020, implemented the recommendation of universal testing for COVID-19 contacts, regardless of symptoms. We recommend that testing should be offered to all contacts regardless of symptoms and encourage local health departments to adopt novel ways of increasing testing access for contacts.    (more…)
Author Interviews, COVID -19 Coronavirus, Gastrointestinal Disease / 01.11.2020

MedicalResearch.com Interview with: Darbaz Adna​n, MBChB Lab Research Assistant Department of Internal Medicine - Section of Gastroenterology Rush University Medical Center Chicago, Illinois 60612 MedicalResearch.com: What is the background for this study? Response: - We have conducted a large study of over 1000 patients at a major COVID-19 response center in Chicago at Rush University Medical Center, to assess for the frequency of initial GI symptoms (diarrhea, vomiting, abdominal pain) and evaluate whether these symptoms in adult COVID-19 positive could predict the disease course. Overall, 22.4% of our patients reported at least one GI symptom at the onset of their infection, with nausea/vomiting being the most common complaint. GI symptoms in COVID-19 patients were associated with worse outcomes. (more…)
Author Interviews, Cleveland Clinic, Infections / 31.10.2020

MedicalResearch.com Interview with: MedicalResearch.com Interview with: Curtis J. Donskey, MD Professor of Medicine Case Western Reserve University Staff Physician, Infectious Diseases Section, Louis Stokes Cleveland VA Medical Center MedicalResearch.com: What is the background for this study? Response: The goal of the study was to obtain a better understanding of how healthcare-associated pathogens are transmitted.  Infection control efforts tend to emphasize hand hygiene and cleaning of high-touch surfaces in patient rooms.  However, there is evidence that portable equipment and floors could be underappreciated sources of transmission. We previously found that a nonpathogenic virus inoculated onto floors in patient rooms spread rapidly to the hands of patients and to surfaces in the room and throughout the ward.  This raised concern that pathogens could spread by the same route. (more…)