Articles tagged with Medical Tests
A comprehensive study found pulse oximeters significantly overestimated oxygen saturation readings in individuals with darker skin tones. This could lead to missed treatments and incorrect diagnoses, as devices may not accurately reflect critical oxygen levels.
Rice researchers developed a rapid and accurate point-of-care malaria test that is 12 times faster and easier to use than traditional tests. The device can detect asymptomatic infections and predict disease outcomes, leading to early identification and treatment of severe cases.
Researchers found that synthetic PIC gel can stimulate cell growth and increase collagen production, potentially improving wound healing after pelvic organ prolapse surgery. The study also showed a mild immune response to the gel when tested on laboratory animals.
A study of routine fecal occult blood testing found a significant decrease in colorectal cancer mortality in Sweden. The association between screening and reduced mortality is expected to be higher due to co-existing testing and delayed diagnoses.
A new AI system is being developed to provide real-time feedback and instruction for surgical trainees, addressing the need for constant supervision in laparoscopic surgery. The system uses computer vision model to detect the student's actions and provides immediate assessment and training direction.
Researchers developed a new recombinant flu vaccine called Hexaplex, which provided superior protection against H1N1 and H3N2 viruses in animal models. The vaccine's combination of six proteins from different groups resulted in strong antibody production and T-cell activation, offering broader immunity.
Researchers at the University of Waterloo have developed a rapid blood testing method that can detect fentanyl and other opioids in under three minutes, making it twice as quick as traditional approaches. This new technique has the potential to save lives by quickly identifying overdoses.
Researchers developed a portable, droplet-based millifluidic device to monitor patients in the critical first days after surgery. The device measures drainage fluid's alpha-amylase activity in real time, reducing test duration from six hours to two minutes.
A new blood test has been shown to diagnose Alzheimer's disease pathology as accurately as FDA-approved spinal fluid tests, making early diagnosis and treatment accessible to more people. The blood test measures levels of Alzheimer's proteins in the blood, detecting molecular signs of the disease even before symptoms appear.
A new study from Edith Cowan University found that a blood test using joint cumulative high-sensitivity C-reactive protein and monocyte to high-density lipoprotein ratio can predict type 2 diabetes risk more effectively. Females were most at risk with significant interaction between MHR and CRP observed.
A Tel Aviv University study found that women in this age group experience increased AMH secretion when exposed to UV radiation from the sun. This increase in hormone levels is associated with a positive effect on fertility.
A recent study by Swansea University analyzed the link between digit ratio and oxygen consumption in professional football players. The research found that athletes with longer ring digits relative to their index fingers had more efficient oxygen metabolism, reaching high maximal oxygen consumption during a cardiopulmonary test.
A new hand-held device screens for breast cancer biomarkers from a tiny spit sample, offering quick and efficient results. The portable tool distinguishes between healthy tissue, early cancer, and advanced cancer in a small group of women.
Renowned expert John Galgiani, MD, shares current body of knowledge about endemic fungal diseases, focusing on Valley fever and histoplasmosis. Early diagnosis is crucial to avoid unnecessary treatments and complications.
Researchers developed a test to predict which heart attack patients are likely to experience dysfunction after receiving mechanical pumps. The test measures pulmonary vascular compliance and its adaptability, helping doctors prevent right ventricle failure.
Researchers have developed a new urine-based test for early detection of ovarian cancer using nanopore sensing technology. The method can simultaneously identify multiple peptides, including those derived from LRG-1, and shows promise for improving 5-year survival rates by up to 75%.
A new stool test, multitargetFIT-test (mtFIT), detects cancer precursors more effectively than the current FIT test, predicting a reduction in new cases of colorectal cancer and mortality. The new test yields more true-positive results without an increase in 'false-positive' results.
Researchers at Northwestern University found a significant decrease in screenings for prostate cancer and urinary tract infections after implementing point-of-care alerts. The study showed a 9% reduction in PSA screenings and a 5.5% reduction in urine testing, with minimal changes in overtreatment of blood sugar.
The American Heart Association's PREVENT risk calculator will be evaluated among diverse populations to assess its accuracy and fairness. The research aims to ensure that the tool provides accurate risk predictions for people from various racial, ethnic, and socioeconomic backgrounds.
Researchers at Virginia Tech have developed a simple, noninvasive, rapid screen to detect cancer in dogs using urine analysis. The test is more than 90% accurate and provides a preliminary understanding of whether a dog has cancer markers in minutes.
Researchers have developed an AI-driven test that accurately diagnoses ovarian cancer in women clinically classified as normal, improving detection of early-stage disease. The test uses machine learning and blood metabolite information to assign a probability of disease presence or absence, offering a more clinically informative approach.
A study of 824 N95 masks used by 412 emergency department workers found that trifold N95s had a higher incidence of fit failure compared to dome N95s. The results highlight the importance of selecting appropriate N95 masks for reuse and extended use in pandemic preparedness
A recent study by Spanish and British researchers found that the influence of clinical microbiologists in Spain helped prepare public hospital laboratories for COVID-19 testing. In contrast, the UK's large centralized laboratories built during the pandemic have been dismantled due to high costs and low quality of testing.
A Phase 3 clinical trial found that combining testosterone-blocking drugs prevents cancer spread and extends treatment time in patients with relapsed prostate cancer. The approach is more effective than single-drug treatment in delaying cancer progression.
A new cancer GPS method uses a water-soluble, luminescent europium complex to evaluate the malignancy grade of model glioma tumor cells without causing harm. The method measures changes in the lifetime of the complex's red-light emission, revealing differences in tumor activity and growth processes between different malignancy grades.
A new screening tool helps identify primary care patients with precarious employment, associated with health insurance issues, lower incomes, and greater psychological stress. The tool assesses temporary contracts, job insecurity, and income variability.
A study found rectal examinations offer no advantages over PSA blood tests for detecting prostate cancer. The research analyzed data from 85,738 participants and concluded digital rectal examination alone or with PSA is not more effective than the PSA test.
Researchers are developing new materials to treat spinal injury, repair, and recovery. A team led by Pitt Engineer Amir Alavi is testing the first
Researchers discover antibody-dependent enhancement of toxicity (ADET), a phenomenon where antibodies can amplify venom's potency. The breakthrough contributes to expediting the development of a new generation of antivenom, potentially saving millions from snakebites yearly.
Rheumatoid arthritis patients who underwent a single session of aerobic exercise experienced temporary reductions in blood pressure at rest and under stress. The study, conducted at the University of São Paulo, demonstrates the benefits of moderate-intensity walking for cardiovascular management and blood pressure control.
Diagnostic errors in hospitalized adults who died or were transferred to the intensive care unit were common, with problems in test choice and clinician assessment identified as high-priority areas for improvement. The study analyzed 2,428 patient records at 29 hospitals and found that these errors led to significant patient harm.
A study of nearly 900 patients found that delayed or missed diagnoses contributed to temporary or permanent harm in three-quarters of cases. Improving diagnostic tools and techniques could reduce errors by up to 40%, according to researchers.
Researchers from UC San Francisco have found that Paxlovid treatment does not reduce the risk of developing long COVID. They also discovered a higher proportion of individuals with acute symptoms rebounding after treatment, and those who took Paxlovid were just as likely to develop severe Long COVID symptoms as those who did not.
A study by Mass General Brigham found that daily learning tests can detect Alzheimer's disease-related changes in memory among cognitively normal older adults. The test, called BRANCH, was completed over seven days on a smartphone, revealing diminished learning curves associated with elevated amyloid levels.
A study by the University of Gothenburg found that maintaining aerobic fitness is linked to a 7-14% lower risk of hospitalizations for any reason. Increased fitness also reduces hospital admissions due to cardiovascular disease. The findings suggest potential benefits for individual health and healthcare costs.
A study found that clinicians can be fooled by biased AI models even with provided explanations, leading to serious declines in accuracy. While accurate AI models improved diagnostic decisions for some demographics, biased models worsened decisions for others.
A new metagenomics tool has improved the diagnosis of infections by detecting rare pathogens with high accuracy. The tool was tested on 742 samples from 523 patients and showed a diagnostic yield of over 25% in cases where infection was strongly suspected.
Researchers have developed an AI-powered system to diagnose autism spectrum disorder (ASD) in children using a single flash of light to the eye. The system uses electroretinography (ERG) to identify specific features that classify ASD, providing a faster and more accurate method for diagnosis than existing tests.
A new study on wearable health monitors reveals that a failure to understand race leads to flawed technology, exacerbating existing racial health inequities. The researchers found significant challenges with 'race correction' in health technologies, which assumes biology over system racism.
A randomized clinical trial found that throat specimens had higher sensitivity for rapid antigen testing than nasal specimens when collected by a healthcare worker. In contrast, self-collected nasal specimens showed higher sensitivity for symptomatic participants, suggesting improved sensitivity with dual sampling.
A research team at Iowa State University is developing a 'placenta-on-a-chip' model to study substance transport across the placental barrier. The project aims to integrate sensing platforms and imaging technology to advance personalized medicine and commercialization.
A randomized clinical trial of 31,000 individuals found that direct-mail human papillomavirus (HPV) self-sampling increased cervical cancer screening by more than 14%. The study suggests that systems implementing HPV self-sampling should prioritize direct-mail outreach for under-screened individuals to increase screening adherence.
A new checklist, Consensus Reporting Items for Studies in Primary Care (CRISP), outlines key reporting items for primary care studies. The CRISP Checklist describes aspects of research, including teams, patients, and study implementation, to improve primary care research reporting worldwide.
A new study found that an AI-aided home stethoscope can efficiently detect asthma exacerbation in patients of all ages, including children under 5 years old. The device records and analyzes respiratory sounds, providing valuable information for parents and caregivers to identify symptoms early on.
A study by Karolinska Institutet found that drones equipped with automated external defibrillators (AED) can arrive at the scene before an ambulance in 67% of cases. This lead time enables people on site to use the AED, increasing the chances of survival for patients with cardiac arrest.
A novel electrical impedance-based microfluidic platform provides rapid and accurate antimicrobial susceptibility testing within an hour, eliminating the need for long-term bacterial culture. The platform reduces human error and increases reliability, making it a promising tool in combating antimicrobial resistance.
Excessive fluid consumption can be caused by a rare hormone deficiency, polyuria-polydipsia syndrome, which regulates the body's water and salt content. Researchers have developed a reliable test using highly concentrated salt infusion to diagnose this condition.
Rates of completion for diagnostic tests and referrals were low across all visit types, with telehealth encounters performing worse. The study highlights the patient safety challenge of incomplete diagnostic loops during primary care, particularly during telehealth encounters.
Researchers aim to optimize digital weight-loss programs for rural populations by adding human components, such as weekly group video sessions and individual coaching calls. The goal is to help residents manage their weight and fight the obesity epidemic in areas with limited access to in-person programs.
A study of 54,000 participants found that diabetes was associated with an elevated risk of colorectal cancer. The association was attenuated for those who completed colonoscopies, highlighting the potential benefits of preventative screening.
Researchers created a blood-based test to detect both diseases, measure viral and bacterial loads, and track treatment progress. The test aims to improve patient outcomes by catching immune reconstitution inflammatory syndrome (IRIS) earlier.
Scientists at Nagoya University have discovered a reliable cancer marker, stromal cell-derived factor 4 (SDF-4), that detects gastric cancer with high accuracy. The protein is found in high levels even in patients with stage I gastric cancer, suggesting its potential for early detection.
Researchers at the University of São Paulo have tested a synthetic molecule called AD-9308, which has shown potential in treating heart failure by activating the enzyme aldehyde dehydrogenase 2. The study found that the molecule improved mitochondrial filtration, eliminating cellular pollutants and boosting heart function by up to 40%.
Researchers at Gwangju Institute of Science and Technology developed metal-enhanced fluorescence probes for rapid and accurate detection of influenza viruses. The probes showed high sensitivity and specificity, detecting the virus even at low concentrations, with a remarkable accuracy of over 99%.
A new rheumatology training program for Native American primary care physicians has expanded its reach to tribes in 15 states. The program, which includes virtual classes and case-based discussions, aims to improve diagnosis and management of rheumatoid arthritis, but faces challenges due to mistrust of accessing private health records.
Researchers introduced a cost-effective solution to correct tilt and curvature errors in two-photon polymerization 3D printing. The method uses Fourier scatterometry, which offers lower uncertainties than traditional methods, resulting in improved image quality and precision.
A study found that physicians who presented treatments for obesity as good news and an opportunity were more successful in helping patients lose weight. Patients who received counseling with a positive and optimistic tone had significantly higher weight loss outcomes compared to those who received neutral or negative advice.
Researchers found that patients with elevated NfL levels had a 91% higher risk of worsening disability with relapse within a year, and a 49% higher risk without relapse nearly two years later. The study suggests that interventions may prevent worsening symptoms by targeting nerve cell death.
A new smartphone app using the APRI+ALBI score increases the safety of liver surgery by providing an individualized risk assessment for patients prior to resection. The score offers a cheaper and less invasive option with comparable predictive power compared to standard preoperative tests.
A recent study published in Nutrients found that daily strawberry consumption can improve cognitive performance and reduce depressive symptoms in middle-aged adults. The research, led by Professor Robert Krikorian, suggests that strawberries contain antioxidants and micronutrients that may help mitigate the risk of dementia.