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.
The purpose of the main study is to describe the incidence of influenza virus and respiratory syncytial virus (RSV) in adults hospitalized with acute respiratory tract infection (ARTI) during the influenza/RSV season, and the purpose of the substudy is to describe the clinical and economic burden in adults hospitalized with confirmed influenza/RSV infection.
This study aims to determine if auriculotherapy is effective in the treatment of dysmenorrhoea. This intervention consists of fixation of yellow mustard seeds at specific points of the auricular pavilion (or area), with opaque tape. Half of the participants will have specific ear pinch points stimulated by mustard seeds fixed with opaque plaster, while the other half will have only the adhesive plasters fixed, without the seeds for stimulation.
Anal incontinence (AI) is used to englobe the involuntary loss of both fecal material and gases, which can help to improve quality of life. Based on these experiences objectives were drawn: to evaluate the effectiveness of radiofrequency and it's influence on quality of life of patients with anal incontinence, to correlate the anal incontinence severity and to evaluate a sexual function and to verify an influence with radiofrequency treatment. It is a blind randomized clinical trial. For the collection of data it was used a fecal quality of life questionnaire (FIQL). The questionnaire assess the severity of Anal Incontinence (FISI), the degree of patient's satisfaction using a five-point scale (Likert) and a visual analogue EVA scale). It was divided in two groups, in one group it was used radiofrequency and pelvic exercises and in the other turned off radiofrequency (heated glycerin) and pelvic exercises. It was accomplished in eight sections. As a result, it is expected the efficiency of the treatment of radiofrequency in the quality of life, in sexual function and in it's severity.
Human immune system produces many different factors, which will influence health-disease statuses. This partially explains why under similar conditions only some people become sick. Therefore, specific analyses of such factors in healthy and diseased patients are crucial for a better knowledge about diseases development and successful treatments. Human beta defensins (hBD) may have a key role in patient's susceptibility to gum diseases. In the lab, high levels of sugar (glucose) could inhibit their expression and contribute to the occurrence of infections associated with diabetic wounds. This study will evaluate if treatment of the most common gum disease in adults influences production of beta defensins by gingiva. Also, clinical improvements and treatment effects on blood glycemic levels will be monitored throughout a 2-month period. Patients with or without gum diseases and with or without diabetes mellitus will be able to participate. After a complete oral examination to determine periodontal status, gingival fluid samples will be collected using paper strips. These samples will be collected before and also two-months after oral treatment and will be analyzed by an immune-enzymatic test named ELISA (Enzyme-Linked Immunosorbent Assay). In weekly sections, one trained specialist will performed treatment of gum diseases under local anesthesia using hand-instruments. Researchers hypothesized that a) levels of defensins would be lower in the presence of periodontal disease when compared to a healthy periodontal condition; b) diabetes would influence production of these immune protective factors; and c) treatment would provide a greater beneficial amount of defensins.
Chemotherapy induces nausea and vomit for some large patients. But, some chemotherapy protocol has a high indices of the incidence as observed in a combination of Anthracycline and Cyclophosphamide (AC). To prevent this symptoms, some medication can be used as Ondansetron. By other hands, the traditional acupuncture on Chinese Medicine have been used a PC6 point to avoid nausea and vomit. More recently, a transcutaneous electric nerve stimulation (TENS) also has been used for this application. Our study will test the TENS applied on PC6 point with two different frequencies (high and low) to evaluated the nausea and vomit inhibition effects.
Breast cancer has become a major public health problem in Latin America, as it is the most common form of cancer among women. Women are more likely to develop breast cancer at younger age, and to be diagnosed at an advanced stage compared to western women. Over the past twenty years, the mortality from breast cancer in Latin America has also been increasing very rapidly, and is currently the leading cause of cancer mortality. Little is known on specific risk factors for premenopausal breast cancer in general, and in Latin America in particular. There is a lack of specific knowledge on tumor molecular and pathological characteristics of breast cancer in Latin America premenopausal women, and this has major consequences on cancer treatment and survival. To improve our understanding on determinants of breast cancer incidence and mortality in young Latin America women and support preventive actions, we implemented an international, population-based multi-center study in Latin America: the PRECAMA study (Molecular Subtypes of Premenopausal Breast Cancer in Latin American Women (PRECAMA): a multicenter population-based case-control study). PRECAMA is coordinated by the International Agency for Research on Cancer (IARC), and is conducted within 4 Latin American countries: Mexico, Costa Rica, Colombia and Chile. Major aims of the project are the following: 1. To develop a multi-centric population-based case-control study on breast cancer in premenopausal women in several countries in Latin America with structured collection of individual, clinical, pathological information and biological specimens, according to strictly controlled protocols 2. To characterize, in these populations, the subtypes of premenopausal breast cancer on the basis of their molecular and pathological phenotypes 3. To improve the identification of specific endogenous/exogenous factors, and disentangle the interplay of these different factors with regard to breast tumor subtypes. 4. Provide advanced training, induce a structuring effect on the breast cancer research community in Latin America and influence the public health agenda regarding the management of breast cancer. The results of our study will be of utmost importance to understand the etiology of breast cancer in Latin America countries, and would provide important information on the role of modifiable exposures for breast cancer prevention.
General objective of the research project: To evaluate the alterations of systemic microvascular reactivity during cardiopulmonary bypass (CPB), in children submitted to cardiac surgery for repair of congenital heart defects.
Introduction: Intracranial pressure (ICP) monitoring is essential in several medical situations, however, currently there is an invasive technique, costly, not widely available and sometimes contraindicated. Transcranial Doppler (TCD) pulsatility index (PI) measure can provide indirect information on the cerebrovascular resistance (CVR) augmentation, which is present concomitantly with intracranial hypertension (ICH). The hypothesis that PI measure accurately indicates cerebral compliance impairment (CCI) has been not assessed by large studies currently, and would be of value as a non invasive technique to denote earlier installing of therapeutics to prevent the effects of ICH. Likewise, a novel technique of intracranial compliance assessment by means of an external sensor has been developed, still in need of being prospectively studied. Objective: The present study aims to assess PI accuracy indicating CCI, and dynamic cerebral auto regulation (dCAR) during internal jugular veins (IJVs) compression observed by both invasive and non-invasive techniques. Methods: A prospective, observational controlled study, including critical neurological patients with ICP monitoring in normal range (under 20 mmHg). Initially, dCAR is monitored, then, the IJVs are compressed for 60 seconds with ultrasound guidance. We evaluate optic nerve sheath prior to intervention, and dCAR, ICP values, ICP waveforms and PI variation at different times, correlating results.
The present study aims to investigate the effect of immediate feedback on long-term blood pressure measurement skills. This is a randomized controlled trial including first year students from a Brazilian medical school, which will be randomized in two groups: an intervention group (submitted to a training on blood pressure measurement skills and an immediate feedback) and a control group (submitted to a training on blood pressure measurement skills, but with no immediate feedback). Then, students will be assessed 3 months after the feedback in order to see whether there will be a difference between groups. Our hypothesis is that students submitted to immediate feedback would have better scores in the blood-pressure measurement skills after 3 months. A knowledge questionnaire as well as a standardized patient scenario will be used to assess students' knowledge and skills.
This study evaluates the patient 's discomfort when submitted to partial caries removal through the atraumatic restorative treatment compared to chemo-mechanical caries removal using Papacarie™ gel.