There are about 10004 clinical studies being (or have been) conducted in Brazil. 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.
Transsphenoidal surgery is considered safe and effective and is currently the procedure of choice for the removal of intrasellar lesions. Direct transnasal access to the sphenoid sinus, without the need for detachment of the nasal septum, provides less postoperative morbidity compared to traditional methods. Sphenopalatine ganglion block is known for its efficacy in otorhinolaryngological surgeries in which the sinuses are approached by transnasal endoscopy, as an important part of postoperative analgesia. However, in a neurosurgical environment, specifically in the treatment of tumors of the sella turcica, the use of the blockade of the referred ganglion to produce postoperative analgesia has been used in a scarce way in the literature. The primary objective of the study is to verify whether blocking the sphenopalatine nerve ganglion in the nasopharynx posterior wall provides better postoperative pain control in surgeries with nasal access for transsphenoidal approach, compared to the placebo group. As secondary objectives, the investigators will observe the consumption of opioids in the intraoperative period, in addition to the incidence of nausea, vomiting and postoperative headache also within 24 hours. Forty patients with physical status P1, P2 or P3 will be prospectively analyzed by the American Society of Anesthesiology (ASA) to undergo microsurgery for tumors with a sellar and / or suprasellar location, with transsphenoidal access, in patients with an age range between 18 and 64 years old, including men and women.
This study aims to investigate the neurophysiological mechanisms of placebo perceived as caffeine during a motor task. Central and peripheral measures (i.e. electroencephalography and electromyography) will be assessed.
Vasoplegia is an important determinant for adverse postoperative outcome and is observerd in 5% to 54% of patients undergoing cardiac surgery using cardiopulmonary bypass (CPB). Postoperative vasoplegia is defined as a state with low systemic vascular resistance despite a normal or high cardiac output, and the need for vasopressor therapy. Steroids attenuate the inflammatory response to cardiopulmonary bypass,but their effect on clinical outcomes is uncertain. This is a double-blinded, randomized, clinical trial designed to determine the efficacy of low dose corticosteroid infusion in vasopressor free-days in vasoplegia after cardiac surgery.
To compare haemodynamics and bispectral index values between conventional bolus propofol induction and target-controlled propofol infusion.
Insomnia and OSA coexist in clinical populations, but the prevalence of comorbid insomnia among OSA patients in the community and risk factors remain poorly known. Little is known about the impact of sleep apnea and insomnia on the quality of life and quality of sleep compared to the presence of one of the sleep disorders alone. Our hypothesis is that the co-existence of OSA and insomnia is high in our community. We also hypothesized that the co-existence of OSA and insomnia promotes greater impairment of quality of life and quality of sleep when compared to the presence of OSA or insomnia alone. Patients referred to polysomnography will be submitted to 6 questionnaires to assess daytime sleepiness (EPWORTH), insomnia severity index (ISI), anxiety and depression assessment (Beck's anxiety and depression inventory), quality of life assessment(WHOQOL- BREF) and sleep quality assessment (Pittsburgh questionnaire) and they will also be submitted to a polysomnography type III. It will be calculated the frequency of insomnia, OSA and the comorbidity between insomnia and OSA in the sample. It will be analysed correlations between the insomnia severity index, apnea and hypopnea index, Epworth sleepiness scale, quality of life scale (WHOQOL-BREF), anxiety and depression scale (Beck's anxiety and depression inventory) and Pittsburgh sleep quality scale. Insomnia severity index scores, Epworth sleepiness scale, quality of life scale (WHOQOL-BREF), anxiety and depression scale (Beck anxiety and depression inventory) and Pittsburgh sleep quality scale will be compared according to the presence and absence of OSA and the presence and absence of insomnia and the presence of the comorbidity insomnia and OSA.
A case-control study with oral squamous cell carcinoma (OSCC) patients from Instituto do Câncer do Estado de São Paulo (ICESP) and healthy volunteers. In this study, it will be collected saliva samples from both groups that will be submitted to sequencing analysis to evaluate the frequency of ALDH1b1 and ALDH2 polymorphisms in the Brazilian population. Also, correlate OSCC risk to alcohol consumption or smoke, by applied questionnaires.
Patellofemoral Pain Syndrome (PPS) is common in athletes, especially when performing jumps. To reduce pain and improve functionality, orthoses such as the infrapatellar strip (IPS) and functional bandage (FB) are indicated, but their effects are controversial. The objective is to evaluate the effect of IPS and FB on lower limb pain, agility, balance and strength in athletes with PPS. Will be evaluated 25 athletes with PPS (10 women and 15 men), who will answer the sample characterization questionnaires, pain scale and performed the Side Hope Test (SHT), modified star excursion balance test (SEBTm) and Sit to Stand 30 in seconds (STS30 ") to analyze lower limb agility, balance and strength, respectively. Three repetitions of each functional test will be performed, with an interval of one minute between repetitions and tests. Still, the tests will be developed with IPS, with FB and without any orthosis, with previously randomized sequence. Expected to establish the effects of IPS and FB for athletes with PPS.
The presence of periodontitis has been hypothesized as a risk factor for several systemic outcomes, including chronic kidney disease (CKD). Therefore, the aim of this study is to evaluate the impact of non-surgical periodontal treatment on CRP levels and quality of life of patients with chronic kidney disease undergoing hemodialysis (HD) in Santa Maria-RS.
Knee osteoarthritis (OA) is one of the most common musculoskeletal disorders in the world. The aim of this project is to evaluate the additional effect of photobiomodulation therapy on the quadriceps muscle and knee joint in a blood flow restriction exercise program for individuals with knee OA. To this end, volunteers will be selected at random, aged between 40 and 65 years with pain in one knee, at least in the last 6 months, diagnosed with unilateral knee OA based on the criteria established by the American College of Rheumatology and radiographic confirmation for grades 2 or 3 of the Kellgren-Lawrence Classification, will be randomized into the following groups: (Exercises with blood flow restriction, n = 20), (Exercises with blood flow restriction + photobiomodulation, n = 20) and Exercises with blood flow restriction + placebo photobiomodulation (n = 20). 12 consecutive weeks of treatment will be carried out, with the volunteers being evaluated before and after, using the following instruments: The Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), sit and stand test, Timed up and Go (TUG), numerical scale pain assessment (END), pain-to-pressure threshold (LDP), skin temperature: quadriceps musculature, knee joint and maximum voluntary isometric contraction (MVIC) of the muscles: quadriceps, middle gluteus. For data analysis, normality test will be used to verify the data distribution and statistical test consistent with the appropriate comparisons within and between groups, thus, two factors are considered in the comparisons, time and group. A significance level of 5% will be adopted.
To evaluate: 1) Evaluate the efficacy of a regimen commercially available versus brush alone on established plaque and gingivitis on adolescents. The Group 1 will use the following procedure: Colgate Ultrasoft toothbrush, Colgate Total 12 toothpaste and Plax Mouthwash, and the other Group will use Colgate Ultrasoft toothbrush and Colgate Cavity Protection toothpaste; 2) The level of halitosis. Two calibrated and blinded examiners (Cohen Kappa 85%) will evaluate the gingival condition using the visible plaque indices, a simplified oral hygiene index - IHOS and gingival bleeding index, with the aid of a WHO probe. For the evaluation of halitosis levels, all individuals will respond to a questionnaire regarding personal data, general and oral health, which includes hygiene habits and received previous guidelines for the procedures to be performed in the second moment. At the next consultation, subjects will be assessed clinically for halitosis using the portable BreathAlert™ sulfide monitor (Tanita Corporation, Japan), in addition to the evaluation of the tongue flap index (ISL), pH and salivary flow. The evaluations will be in the following periods: baseline, 1, 3 and 6 months of brushing. Data will be submitted to descriptive statistical analysis to demonstrate the distributions frequency of biofilm indices and gingival bleeding. The differences in the criteria evaluated will be submitted to Fisher's exact test (α = 0.05) and their performance at different times will be evaluated by the Mann-Whitney test (α = 0.05).