Active clinical trials for "Syndrome"

This study involves study participants who have been clinically diagnosed with parkinsonian syndrome or who are at-risk for parkinsonian syndrome, have a family history of parkinsonian syndrome or exposure to environmental toxins potentially associated with parkinsonian syndrome. Participants will have brain imaging to assess dopamine transporter density. The imaging data coupled with family history and environmental exposure data may provide important information about potential risk factors for parkinsonian syndrome.

The purpose of this clinical research study is to determine whether apixaban will be safe in people who have recently had unstable angina or a heart attack.

The investigators designed a compassionate basis phase II study for refractory/relapsed mycosis fungoides/Sezary syndrome consisting of alemtuzumab (Campath) for primary evaluation of overall response and time to relapse. Other goals to consider are toxicity and time to new therapy.

This study assesses dopamine transporter density using single photon emission computed tomography (SPECT) brain imaging with an investigational radiopharmaceutical, [123I]ß-CIT, in research participants with Parkinson's disease.

Cushing Syndrome is an endocrine disorder causing an over production of the hormone cortisol. Cortisol is produced in the adrenal gland as a response to the production of corticotropin (ACTH) in the pituitary gland. Between 10% and 20% of patients with hypercortisolism (Cushing Syndrome) have ectopic production of the hormone ACTH. Meaning, the hormone is not being released from the normal site, the pituitary gland. In many cases the ectopic ACTH is being produced by a tumor of the lung, thymus, or pancreas. However, in approximately 50% of these patients the source of the ACTH cannot be found even with the use of extensive imaging studies such as computed tomography (CT) scans, magnetic resonance imaging (MRI), and nuclear scans (111-indium pentetreotide). The ability of these tests to locate the source of the hormone production is dependent on the changes of anatomy and / or the dose and adequate uptake of the radioactive agent. The inability to detect the source of ectopic ACTH production often results in unnecessary pituitary surgery or irradiation. Unlike the previously described tests, positron emission tomography (PET scan) has the ability to detect pathologic tissue based on physiologic and biochemical processes within the abnormal tissue. This study will test whether fluorine-18-fluorodeoxyglucose (FDG), fluorine-18-dihydroxyphenylalanine (F-DOPA) or use of a higher dose of 111-indium pentetreotide can be used to successfully localize the source of ectopic ACTH production.

Hyper Ventilation Syndrome is a frequent disease affecting adults whose diagnosis is often belated or even unrecognized due to the lack of "gold standard" criteria. Its diagnosis currently relies on the Nijmegen score associated with a PetCO2 assesment using a hyperventilation provocation test. Correlation between Nijmegen Questionnaire scores and PetCO2 appears highly variable. PtcCO2 monitoring is a noninvasive alternative method providing a continuous estimation of arterial CO2 pressure (PaCO2) which could represent an advantageous alternative to PetCO2 measurements. Several reports have demonstrated that PtcCO2 monitoring reflects more faithfully PaCO2 than PetCO2, no study have evaluated its value in this indication. The primary aim of the study is to compare the diagnostic value of PtcPCO2 monitoring with PetCO2, the method currently used. Included patient will be invited to fill in the Nijmegen questionnaire and an ambient air gas measurement will be performed. PtcCO2 (mmHg) will be simultaneously measured during hyperventilation test. Nijmegen score signs reproduced by the test will be analysed. HVS diagnosis will be assessed by usual criteria (PetCO2 <30 mmHg at the end of hyperventilation test or under the PetCO2 value at rest, Nijmegen score> 23). PtcCO2 data will be blinded interpreted later. We will compare if PetCO2 and PtcCO2 leads to the same diagnosis or not.

The purpose of this study is to improve the differential diagnosis and clinical outcomes of acute coronary syndrome with non-obstructive coronary arteries, to investigate the relationship between the structural and functional state of the heart and the clinical course of the disease.

Colorectal Cancer is the commonest cancer diagnosed for both genders combined in Hong Kong. In 2015 16.6% of all new cancer cases registered on the Hong Kong registry were cancer of colon and rectum. With recent development in oncological and surgical treatments for rectal cancer, many patients are receiving sphincter-preserving surgery with low colorectal or coloanal anastomosis to avoid permanent stoma. Up to 80% of patients who has undergone low anterior resection (LAR), suffer from severe bowel dysfunction post operatively. Patients may suffer from a wide range of symptoms from incontinence, frequency, and urgency to constipation and feelings of incomplete emptying. This combination of symptoms after LAR is referred to as Low Anterior Resection Syndrome (LARS) which is associated with negative impact on quality of life (QoL). Originally, it was thought that these symptoms were due to early postoperative changes. Many studies report that the majority of patients experience longterm changes in quality of life after LAR. Therefore, a large number of patients worldwide are suffering from unpredictable, poor bowel function postoperatively affecting their day-to-day activity and quality of life. The cause of LARS is often multifactorial and difficult to define. Unfortunately, there is no cure for LARS at present. This trial is designed to use Fecobionics, a new Hong Kong based innovation of a simulated stool, to provide new mechanistic insights regarding anorectal physiological function post low anterior resection to understand the condition better to improve their treatment options.

This study evaluates the less invasive surfactant administration (LISA) combined with synchronized nasal intermittent positive pressure ventilation (SNIPPV) technique in the treatment of respiratory distress syndrome (RDS) of preterm neonates. The modified InSurE group will receive "LISA + SNIPPV" technique, while the traditional InSurE group will receive the intubation, surfactant, extubation and CPAP technique.

Chronic Compartment Syndrome (CCS) is a pathology that affects more specifically subjects exposed to repeated movements, particularly in a professional life or sports. The diagnosis is difficult and often delayed. Currently, the reference technique is invasive. It consists of measuring by a intramuscular puncture (IMP) pressure in the offending compartment early after effort (usually between 1 and 5 minutes post-exercise). A value greater than or equal to 30 mmHg in the first 5 minutes is used as a diagnostic criterion for CCS. Other less invasive techniques (scintigraphy) exist but are subject to certain discordances of interpretation. The advent of new assessment tools, like the MyotonPRO, pave the way for a non-invasive diagnostic approach.