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Filter by:Tuberculosis (TB) is transmitted in bioaerosols containing Mycobacterium tuberculosis (Mtb). Mtb-containing bioaerosols are likely related to host infectiousness and central to ongoing TB transmission. No routine diagnostic assay exists to measure Mtb in bioaerosols. Furthermore, published studies of Mtb in bioaerosol samples, have been limited to individuals with sputum-positive pulmonary TB. Currently TB diagnosis is based on clinical symptoms and sputum laboratory findings. However, approximately half of all patients commencing TB treatment are sputum negative resulting in a high proportion of presumptive treatments. We therefore propose to use a sensitive sampling protocol to investigate the prevalence of Mtb-containing bioaerosols in both sputum-positive and sputum-negative TB suspects.
The Auditory Nerve Test System (ANTS) is a novel device that stimulates the auditory nerve much like a cochlear implant. The purpose of this study is to demonstrate feasibility of the ANTS during translabyrinthine surgery for vestibular schwannoma resection. If the auditory nerve is kept intact, then the patients will also receive a cochlear implant at the same time potentially alleviating the morbidities caused by a vestibular schwannoma and asymmetric sensorineural hearing loss.
The study will include up to 30 AMD patients, recruited by two medical centers, Tel-Aviv medical center and Assuta Hashalom medical center. At the screening visit, the patients will be imaged in their tested, eligible eye(s), using a commercial Zeiss Cirrus or Heidelberg Spectralis OCT.
In this study, the investigators hypothesize that preemptive scalp block in neurosurgical patients may decrease incidence of PONV after craniotomy through decreasing intraoperative inhalational agents' concentration and decreasing intraoperative opioids requirements, with better intraoperative hemodynamics and lesser recovery time
What is the purpose of the study? People with Multiple Sclerosis often say that they feel less support is available after they are diagnosed with Secondary Progressive Multiple Sclerosis, compared to before they received this diagnosis. People sometimes experience a lessening of support, despite their physical symptoms becoming more severe from both professionals and those in their personal lives. The purpose of this study is to see whether providing some telephone support to those who have recently received a diagnosis of Secondary Progressive Multiple Sclerosis is experienced as helpful and is possible to do practically. This study will help the investigators understand which type of support may be helpful for patients in the future and may pave the way for larger studies and changes to NHS provision. Who is it for? Participants will be those who have transitioned recently (within the last year) to Secondary Progressive Multiple Sclerosis. The investigators are inviting 40 participants to take part. What will happen to participants if they take part? Participants will be asked by their Neurologist or MS Nurse to take part in the study and will provide written consent to be contacted, which will be stored by the research team. Their details will be passed to the study team at the University of Nottingham, who will telephone the participant within a week to tell them a bit more about the study and ensure they are suitable for the study by asking them some questions. Following this, the participant will be sent some paper or online questionnaires to complete and return. After this, the researcher will visit the participant face to face to introduce themselves and answer any questions they may have. They will also tell the participants what "group" they have been randomly put into. There are two groups. Those in the first group would be asked to commit to receiving a 30 minute support phonecall each week for five weeks in addition to any usual care, and the second group will receive their usual NHS care. The support phonecalls will draw from techniques used in a type of psychological therapy (acceptance and commitment therapy). All the phonecalls can be done whilst the participant is at home or in a quiet place of their choosing. After this, both groups will fill in some more paper questionnaires eight and twelve weeks after the start of the study. The investigators expect that participants will be involved in the study for around 4 months. After the study, participants will also have the opportunity to feedback how they experienced being a participant in the study. Their responses will help the researchers understand their experience, and help them use this to think about how to adapt similar studies in the future.
This is a prospective, two-arm randomized controlled trial. 100 patients diagnosed with resistant depression in psychiatric care clinic in Edmonton, Alberta, Canada will be randomized to one of two conditions: (1) enrolment in rTMS sessions alone (2) enrolment in the rTMS sessions plus iCBT. Patients in each group will complete evaluation measures (eg, recovery, general symptomatology and functional outcomes) at baseline, 1 month, 3 months and 6 months. The primary outcome measure would be changes to scores on the Hamilton Depression Rating Scale. Patient service utilization data and clinician-rated measures will also be used to gauge patient progress. Patient data will be analyzed with descriptive statistics, repeated measures and correlational analyses.
This study series consists of four related studies and aims to explore and describe many important elements of alopecia areata over three key areas: (1) the current epidemiology of alopecia areata, (2) the prevalence and incidence of psychiatric co-morbidities in people with alopecia areata, (3) the prevalence and incidence of autoimmune and atopic conditions in people with alopecia areata, and (4) the incidence of common infections in people with alopecia areata.
Current rapid molecular assays for detection of drug-resistant TB from direct clinical samples have important limitations. They are not suited for high-throughput settings; can only be used to detect a limited number of target gene regions and are not ideal for detection of phenotypic resistance conferred by mutations across large gene regions (e.g. pyrazinamide). Culture-free, end-to-end targeted NGS (tNGS) Solutions for Diagnosis of Drug Resistant TB can offer higher throughput and greater accuracy across more TB drugs than current WHO endorsed molecular assays, and a significantly faster time to result than phenotypic drug susceptibility testing (DST). Evidence regarding the clinical diagnostic accuracy and operational characteristics of tNGS solutions is needed to comprehensively evaluate tNGS for diagnosis of drug-resistant TB among patients who have been diagnosed with TB, and will be critical to inform global and national policy.
A prospective, interventional, multicenter pilot study to characterize differences in performance and patient reported outcomes between the Taleo, Proflex XC, and the new Revo prosthetic foot.
Neovascular age-related macular degeneration (nAMD) is characterized by the presence of choroidal neovascularization (CNV). Choroidal neovascularization consists of abnormal blood vessels originating from the choroid and can lead to hemorrhage, fluid exudation, and fibrosis, resulting in photoreceptor damage and vision loss. The safety and efficacy of brolucizumab has been demonstrated in 2 randomized, multicenter, double-masked, active controlled Phase 3 studies in nAMD patients (RTH258-C001 and RTH258-C002). Anatomical changes were evaluated in these studies using spectral domain optical coherence tomography (SD-OCT), which relied on indirect parameters for the diagnosis of active CNV. The OCT-angiography (OCT A) that directly visualize retinal circulation and image CNV and vascular diseases of the retina was not included in previous brolucizumab studies. This single-arm, open-label, multicenter study was performed to evaluate the efficacy and safety of brolucizumab 6 mg in patients with nAMD. OCT-A was used in this study to assess the morphological response of patients to brolucizumab in terms of percentage change in CNV lesion area in the short term (i.e. at Week 12) and in the long term (i.e. at Week 48), as well as changes in other OCT-A features up to Week 48.