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Discover 17,468 clinical trials near Dallas, Texas. Find research studies in your area.
Showing 7541-7560 of 17,468 trials
NCT04435457
At the end of December of 2019, a series of patients in Wuhan, China were struck with a mysterious respiratory infection. These isolated events have rapidly grown into a deadly, global pandemic. This pandemic is caused by the Severe Acute Respiratory Syndrome Coronavirus 2 (SARS-CoV-2), which results in the Coronavirus Disease 2019 (COVID-19). For individuals infected with COVID-19, approximately 30% of the hospitalized cases are associated with cardiovascular complications. Data are emerging that individuals with pre-exiting conditions (like hypertension, diabetes, cancer, or medical issues related to the immune system) are most susceptible to complications related to COVID-19. Furthermore, individuals of certain racial and ethnic backgrounds (e.g. African American and Hispanic) are at a higher risk of death from COVID-19. Despite these emerging observations, it remains unclear who will develop the cardiovascular complications (acute myocardial injury with evidence of a myocarditis-like picture and cardiogenic shock) and what the long term sequelae of this disease will be for survivors of this infection after hospitalization. Thus, the goals of this project are to better understand the epidemiology of cardiac injury in acutely ill COVID-19 patients through deep cardiac phenotyping and identify the molecular profile of individuals most susceptible to cardiac injury from COVID-19.
NCT04876625
Breathing is one of the body's vital functions that occur under normal conditions using the nose. When humans breathe primarily through the mouth instead of the nose, this is referred to as mouth breathing. Snoring and obstructive sleep apnea (OSA) occur frequently in mouth breathers. Mouth breathing impairs oral health, reduces quantity and quality of saliva, and increases dry mouth, risk of developing dental caries, gingival inflammation, bad breath and dry lips. Serious health conditions associated with an obstructed upper airway in those who snore include hypertension, cardiovascular disease and mild cognitive impairment. Oral appliances (OAs) that bring the lower jaw (mandible) forward have been shown to be highly effective in reducing snoring and interruptions in breathing (respiratory events) that occur in those who snore and/or have OSA. The myTAP™ OA (AMI, Dallas, TX) includes an optional mouth shield (MS) that is anticipated to promote nasal breathing. The purpose of this study is to investigate the effects of oral appliance plus mouth shield therapy on sleep cardio-respiratory dynamics (breathing and heart activity) and their effect on improving OSA and oral health, especially of the periodontal tissues, in confirmed mouth breathers who snore and/or have OSA. As many as 70 adults at least 18 years old will be recruited to participate. All participants will wear the OA during sleep for 8 weeks (Phase 1). Half of the participants will be randomly assigned to wear the OA only for the first 4 weeks; all will wear both the OA and MS for the last 4 weeks. Participants will wear an easy-to-use home sleep recording system (NOX T3) for 2 nights at the start of the study and again at 4 weeks and 8 weeks. Based on the investigators' experience, some participants will not have achieved maximal benefit from the OA at 8 weeks, and will require addition adjustment. These participants will enter a second phase of the study where they will have 1 or more sleep studies done at 2 week intervals, and will further adjust their OAs (that is, advance the mandible) to eliminate snoring.