There are about 4372 clinical studies being (or have been) conducted in Greece. The country of the clinical trial is determined by the location of where the clinical research is being studied. Most studies are often held in multiple locations & countries.
The purpose of this study is to learn about the safety and effects of nirmatrelvir/ritonavir for the potential treatment of COVID-19 rebound. The study is seeking participants who: - Have completed treatment with nirmatrelvir/ritonavir - Have a rebound in COVID-19 symptoms - Are SARS-CoV-2 (COVID-19) positive All study medications will be taken 2 times a day by mouth for 5 days. The first dose of study medication is taken at the study clinic and the rest at home. We will examine the experiences of people receiving the study medicines to those who do not. This will help us determine if the study medicines are safe and effective. People taking part will be in this study for about 24 weeks. Enrolled participants will need to visit the study clinic at least 8 times during the study.
Prostate cancer is one of the most commonly diagnosed neoplasm in men worldwide. The gold standard of therapy is radical prostatectomy, a wide surgical excision of the neoplasm and can be performed either open, laparoscopic or robotic. The open retropubic approach, still performed today, can be completed under either general anaesthesia or combined (spinal/epidural) anaesthesia without any clear guideline on which one should be preferred. In this study the investigators aim to evaluate general anaesthesia and combined (spinal/ epidural) anaesthesia in patients undergoing open retropubic radical prostatectomy and define whether these may have an impact on the oncological outcome and safety of the procedure.
This proposal aims to describe research that will utilize first aid in primary education students and will attempt to identify the frequency with which the training should be repeated and the type of trainer who will carry out the training program.
Chronic kidney disease (CKD), especially end-stage kidney disease (ESKD), is associated with increased risk for cardiovascular events and all-cause mortality. Exercise intolerance as well as reduced cardiovascular reserve are extremely common in patients with CKD. Cardiopulmonary exercise testing (CPET) is a non-invasive, dynamic technique that provides an integrative evaluation of cardiovascular, pulmonary, neuropsychological and metabolic function during maximal or submaximal exercise, allowing the evaluation of functional reserves of these systems. CPET is currently considered to be the gold-standard for identifying exercise limitation and differentiating its causes. It has been widely used in several medical fields for risk stratification, clinical evaluation and other applications. However, the use of CPET in assessment of exercise intolerance in everyday nephrology practice is limited. Hence, this is the first study possible differences in CPET's parameters during long and short interdialytic intervals in hemodialysis patients.
Complicated Intra-Abdominal Infections (cIAIs) represent an emergent surgical situation which lead to important non trauma-related mortality in several Emergency Surgical Centers worldwide. Their prevalence seemed to be unrelated to age, gender, health status and socioeconomic condition. Early diagnosis, timely septic source control, wide-spectrum antibiotic delivery and resuscitation with fluids and vasoactive agents in critically ill patients are fundamentals for successful cIAIs management. Moreover, septic shock, antibiotic resistant multi-pathogens and comorbidities have been associated with increased morbidity and mortality of cIAIs. Several international health associations announce updated guidelines for cIAIs management. Nevertheless, such guidelines could not be widely implemented, because of specific features of several healthcare systems worldwide. The aim of the present study is to investigate the prevalence of cIAIs among the Greek health system and the potential association of time interval of septic source control, preoperative resuscitation and multidrug resistant pathogens with morbidity, mortality, ICU stay and length of stay in patients with cIAIs.
Surgical site infections (SSIs) are the most complication after a surgical operation and their incidence reaches 20% worldwide. SSIs have been associated to significant morbidity and mortality, high ICU admission rates, increased length of hospital stay, high readmission rates and raised cost. However, there is no registry for SSIs in Greece so far. In addition, it has been considered that almost half of SSIs could be prevented. Therefore, several prevention strategies have been suggested by international health organizations, such as WHO and NICE, that seem to be effective. The aim of the present study is to investigate the effect of 10 prevention bundles on the rate of SSIs, as well their consequences on several financial parameters of the Greek healthcare system.
This was the pilot study of the EU funded research and innovation project WELMO (Wearable Electronics for Effective Lung Monitoring) -Grant agreement number: 825572. The clinical trial involved patients suffering from a variety of respiratory pathological conditions and examined the ease-of-use and efficacy of the WELMO system, comprising a sensors vest for thorax auscultation and recording of Electric Impedance Tomography (EIT) signals and transmitting those on the cloud for review by physicians. The study recruited and briefly monitored 27 patients who underwent brief training and subsequent wearing of the sensors vest for 15-20 minutes, after manual auscultation, spirometry and oximetry. The collected data were transmitted wirelessly to a tablet and then securely to the cloud for review by attending physicians. The usability of the system, the quality of the obtained signals and the validity of the results were evaluated.
Although great progress has been made over the past 2 years in the scientific understanding of the biology, epidemiology, and pathogenesis of severe acute respiratory syndrome coronavirus 2 (SARS-CoV2), case morbidity and fatality rates remain a great concern and continue to challenge the healthcare resources worldwide as novel variants emerge. There is therefore an urgent need for affordable and readily available strategies to reduce viral transmission. Previous studies in non coronavirus disease 2019 (COVID-19) patients have demonstrated that administration of low-salt (isotonic but 0.0375% Na) and isotonic saline (0.9% Na) solutions has been associated with an immediate, significant reduction in the microbial antigens and a related decline of microbial burden. The primary aim of the present study is to determine the effect of nasal washes with normal saline 0.9% on nasopharyngeal viral load in hospitalized patients with COVID-19 pneumonia. The secondary aim is to examine if this effect influences escalation to high flow nasal oxygen or non-invasive ventilation and admission to ICU in patients with COVID-19 pneumonia.
COVID-19 disease (coronavirus disease 2019) primarily affects the respiratory system, using the angiotensin-converting enzyme 2 receptor. However, there is increasing evidence that COVID-19 can also affect the heart (myocardial injury, myocarditis, arrhythmias) and the vascular system, effects that may worsen the clinical outcome of patients. The aim of this study is to assess the effect of COVID-19 on the patients' endothelial function, during the acute phase of the disease (inpatient), shortly after recovery (2 months) and in the mid-term (6 months). Evaluation of endothelial function will be performed non-invasively by the method of Peripheral Arterial Tonometry (PAT) using the EndoPAT2000 system (Itamar Medical, Israel). This is a prospective, case-controlled, single-center clinical observational study. The study will include adult patients who developed COVID-19 disease for whom admission for hospitalization was required, while the control group will consist of healthy volunteers matched for age, gender and cardiovascular risk factors. Patients enrolled in the study will undergo the following visits: - Visit 1: Hospitalization - Visit 2: 2 months after discharge - Visit 3: 6 months after discharge - Visit 4: 1 year after discharge Patients will be subjected to measurement of the reactive hyperemia index with the EndoPAT2000 system in Visits 1, 2 and 3. The aim of the study is to compare the endothelial function between the two groups (COVID-19 vs. Controls).
Primary objective of this study is to compare two presbyopia correction surgical techniques, specificaly premium monovision, in which the dominant eye is corrected with an extended depth of field intraocular lens and the non-dominant eye with a trifocal diffractive intraocular lens, and the bilateral implantation of trifocal diffractive intraocular lenses.