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.
A Feasibility Study to evaluate the initial safety and performance of the RapidPulseTM Aspiration System in the treatment of patients with Acute Ischemic Stroke (AIS) due to Large Vessel Occlusion (LVO).
Background: Although placement of an intra-cerebral catheter remains the gold standard method for measuring intracranial pressure (ICP), there are several limitations to the method. Objectives: The main objective of this study was to compare the correlation and the agreement of the wave morphology between the ICP (standard ICP monitoring) and a new nICP monitor in patients admitted with stroke. Our secondary objective was to estimate the accuracy of four non-invasive methods to assess intracranial hypertension. Methods: We prospectively collected data of adults admitted to an intensive care unit (ICU) with subarachnoid hemorrhage (SAH), intracerebral hemorrhage (ICH) or ischemic stroke (IS) in whom invasive ICP monitoring placed. Measures had been simultaneously collected from the following non-invasive indices: optic nerve sheath diameter (ONSD), pulsatility index (PI) using transcranial Doppler (TCD), a 5-point visual scale designed for Computed Tomography (CT) and two parameters (time-to-peak [TTP] and P2/P1 ratio) of a non-invasive ICP wave morphology monitor (Brain4care[B4c]). Intracranial hypertension was defined as an invasively measured ICP > 20 mmHg for at least five minutes.
cervical cancer is the fourth most frequent cancer in women worldwide and in Brazil, it occupies the third position for the triennium 2020/2022, with a high mortality rate and maintained in the last 10 years. It is associated with persistent human papillomavirus (HPV) infection. Primary prevention can be accomplished through vaccines that prevent HPV infection of the epithelial cells of the cervix. Secondary prevention in screening for precursor lesions through periodic repeat cervical sampling in a population of asymptomatic women. Women with abnormal cytology are more likely to have pre-invasive or invasive lesions and are referred for further testing, colposcopy. Colposcopy identifies suspicious areas and guides the best site for biopsy. In the situation of negative colposcopy and abnormal cytology, suspicion for high-grade lesion (HSIL). It recommends further investigation of the endocervical canal before the possible excisional procedure and obtaining an additional canal sample by brushing or curettage. However, to date, there is no consensus and studies lack consistent results on which is the best method for further investigation of the endocervix. Objectives: To compare the performance of additional strategies in the investigation and detection of precursor or invasive lesions in the endocervical canal in women with abnormal cytology (ASC H+) and with initial colposcopy without suspicious images.
Spinal cord injury is caused by any harmful process in the spinal cord, impairing its function, generating loss of muscle strength, impairing orthostatism and walking. In rehabilitation, some strategies are used to activate the muscles involved in the gait of these individuals, including the ergometric bicycle and the elliptical. Understanding the pattern of muscle activation generated by these methods is important to answer questions arising from clinical practice. Thus, we seek to verify the pattern of muscle activation of the vastus laterals, vastus medialis, gluteus medius, tibialis previous, rectus abdominis and paravertebral muscles during exercises with ellipticals and ergometric bicycle with and without electromyography biofeedback in individuals with spinal cord injury. Cross-sectional study of the type crossover. Individuals will sign the Informed Consent Form (FICF) and answer the identification form. They will be evaluated for functionality using the Functional Independence Measure (FIM), injury classification by the American Spinal Injury Association (ASIA) and muscle tone by the modified Ashworth scale. Later, they will be randomized to define the order of the devices in which they will be evaluated. Muscle activity will be verified with electromyography of the paravertebral, abdominal, vastus laterals, vastus medialis, gluteus medius and tibialis anterior unilateral muscles on the right side of individuals, comparing muscle activation during exercise cycling, elliptical and adding biofeedback in both modalities. The wash-out interval between each evaluation will be 7 days. We hypothesize that the elliptical with biofeedback will cause greater activation of the assessed muscles.
Erectile dysfunction (ED) affects up to 20% of men and is a growing problem with advancing age. There are many causes that contribute to ED, including the concomitant use of prescription drugs for health problems, including hypertension, or diseases such as diabetes. causes an up-regulation or increased local tissue expression of these proteins. This study follows the demonstration of the effectiveness of using BES in the treatment of ED. The aim of this study will be to examine the potentially additive effect of adding a third arm to the previous protocol to include the addition of 4 new target proteins to VEGF, including endothelial nitric oxide (eNOS), stromal-derived factor 1 (SDF-1), insulin-like growth factor (IGF) and follistatin.
The proposed control intervention trial, aims to analyse the effects of Dance in the turning characteristics in patients with Parkinson Disease (PD) using three- dimensional (3D) analysis during the timed up and go (TUG) test.
The main aim of this study is to capture management and treatment outcome data in participants with short bowel syndrome and chronic intestinal failure (SBS-IF) that underwent intestinal transplantation in Brazil. This study is about collecting data available in the participant's medical record and will also describe the demographic and clinical characteristics of these participants. No medication will be provided to participants in this study. Clinical data will be collected from a period up to 10 years before the day of the intestinal transplantation. No clinic visits will be required as part of participation in this study.
Azoospermia is defined as the complete absence of spermatozoa in the ejaculate. Two-thirds of azoospermic patients have non-obstructive azoospermia (NOA); the latter comprises up to 10% of infertile men overall. NOA is an untreatable testicular disorder associated with spermatogenic failure and is the most severe male infertility phenotype. Among the available surgical sperm retrieval techniques, microdissection testicular sperm extraction (micro-TESE) is the procedure of choice due to its high sperm retrieval success rates (SRR), minimal tissue extraction, and low complication rates. Even with the use of micro-TESE, the likelihood of retrieving sperm in patients with NOA remain suboptimal (40% to 60%). Hypogonadism is detected in approximately half of the patients with NOA. Given the role of intratesticular testosterone (ITT) levels for spermatogenesis, some studies have explored the clinical utility of testosterone optimization by medical therapy before sperm retrieval. Moreover, some investigators have hypothesized that the follicle-stimulating hormone (FSH) reset might increase the expression of FSH receptors and improve Sertoli cell function. Hormonal therapy with human chorionic gonadotropin (hCG) has been shown to improve ITT production and decrease FSH levels in patients with NOA. The investigators, therefore, designed an observational cohort study aiming to evaluate whether hormone stimulation with gonadotropins (e.g., hCG alone or combined with FSH) previous to micro-TESE increases sperm retrieval rates in hypogonadal infertile men with NOA, candidates for sperm retrieval. The investigators hypothesize that optimizing ITT production and resetting FSH levels may improve spermatogenesis and successful sperm recovery.
This study aims to evaluate the effectiveness of ultrasonic irrigation in improving root canal disinfection after chemomechanical procedures.
155 Pérola Byington Hospital patients presenting early stage luminal BC were submitted to Oncotype Dx® evaluation. Changes in treatment recommendations and costs were obtained from Pérola Byington Hospital. Oncotype DX® incorporation in the Brazilian Public Health System should be considered, as it results in high clinical impact for patient and high economic impact for health system, being a tool that safely and accurately delimits the subgroup of patients who really need AC.