View clinical trials related to Covid19.
Filter by:The educational process of general surgery residents is a very important step in every surgeon's career, which is often overlooked or neglected. The Covid-19 pandemic has inflicted deep changes in the medical activity in general and in the training process of young doctors in particular. Our study aims to assess the impact of the Covid-19 pandemic on the educational process of general surgery residents, through a comparative study. The responses of resident doctors at a questionnaire, in two different time periods, will be compared: pre-Covid era (December 2019) and Covid era (December 2020).
This is a implementation research study of a surgical wound tele-monitoring online tool developed at the University of Edinburgh and demonstrated in the "Tracking wound infection with smartphone technology" (TWIST) randomised control trial (NCT02704897) conducted in NHS Lothian. The study design is based on the Medical Research Council (MRC) "Guidance for developing and evaluating complex interventions".
This is a longitudinal study of participants from two university communities in Chile. The primary objective is to examine the effect of a regional lockdown on alcohol and tobacco use, using a difference-in-difference analysis to obtain causal estimates of these COVID-19 policies.
The investigators used a retrospective review of 251 SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) positive patients' cesarean section anesthesia to determine the rate of failed spinal anesthesia, management techniques for failed block, and risk factors that contribute to failure in this study.
Part 1: An open label, dose and age escalation phase to evaluate the safety and immunogenicity of VXA-CoV2-1.1-S with a repeat-dose vaccination schedule in healthy adults aged 18 - 75 years old that are either vaccine naive or have received prior vaccination with an mRNA (messenger ribonucleic acid) vaccine for the prevention of COVID-19. Part 2: This phase will assess the efficacy of prophylactic VXA-CoV2-1.1-S against confirmed COVID-19 occurring from 7 days after second dose with a repeat-dose vaccination schedule in healthy adults compared to placebo. Safety and immunogenicity of VXA-CoV2-1.1-S will also be evaluated in this phase.
COVID-19 is an infectious disease caused by SARS-CoV2 virus. COVID-19 patients can develop a severe disease that can lead to hypoxic respiratory failure and acute respiratory distress syndrome (ARDS). Severe patients can require access to intensive care unit (ICU). Early rehabilitation is known to be effective in critically ill patients and in ARDS. Early rehabilitation is known to be effective in critically ill subjects. The role of physiotherapy in severe COVID-19 patients is still unclear and few guidelines have been proposed so far. Aim of this study is to assess efficacy of early rehabilitation for severe ICU-admitted COVID-19 patients as compared to a group that did not received physiotherapy treatment in ICU.
The study is an observer-blind, randomized, controlled prospective intervention study of Phase I. The primary objective is To evaluate the safety of the SARS-CoV-2 protein subunit recombinant vaccine within 7 days after each dose.
Introduction. As the COVID-19 pandemic has continued, an increasing number of long-term complications are emerging. Recently, the appearance of characteristic pulmonary lesions has been noted, being described as post COVID-19 pneumatocele. The aim of this study is to describe the clinical, histopathologic and imaging features of post COVID-19 pneumo-hematoceles (PHC) and secondarily to suggest a treatment algorithm in these patients. Methods. A retrospective study was performed in patients admitted with diagnosis of SARS-CoV2 infection from March 2020 to September 2021 who presented PHC on imaging studies. Clinical and demographic variables were recorded and CT scans were analyzed. A logistic regression analysis was performed to determine the risk for rupture according to PHC characteristics. It appears that PHC occurs secondary to encapsulation of blood accumulation, the result of micro capillary bleeding, with partial reabsorption of blood and subsequent air filling. The recommendation is to operate on patients with PHC of 5cm and those with persistent lesions of 3cm.
Prospective, observational SARS-CoV2 serological surveillance single London HIV outpatient center study using NHS participants
To evaluate the post-marketing immunogenicity and safety of the inactivated severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine (Vero cells) in patients aged 60 years or older with hypertension and/or diabetes, thus to further collect the immunogenicity and safety data of this product in special populations.