Aortic stenosis: 200 newly identified genes raise hope for future treatments - McGill University Health Centre

{ "title": "Study Evaluates Diagnostic Accuracy of Photon-Counting Detector CT in Coronary Angiography", "excerpt": "Research finds photon-counting detector CT offers high sensitivity, specificity, and accuracy for detecting coronary artery stenosis. ", "body": "A recent study published in the American Journal of Roentgenology examined the diagnostic performance of standard resolution (SR) and ultra-high resolution (UHR) modes in coronary computed tomography angiography (CCTA) using photon-counting detector CT (PCD CT). Researchers analyzed data from 122 inpatients, totaling 1,613 segments for evaluation. The findings indicate a segment-level sensitivity and accuracy rate consistently above 89.6 percent for diagnosing coronary artery stenosis.\n\nThe study assessed images from 61 patients using SR (total of 788 segments) and 61 patients utilizing UHR (total of 825 segments). The image reconstructions included SRnormal and SR virtual non-calcium (SRVNCa) images for the SR exams, while UHR exams were categorized into UHRnormal and UHRthin images.

Rheumatic heart disease (RHD) has become uncommon in the United Kingdom, particularly among British-born adults without a recognized history of acute rheumatic fever (ARF). A 40-year-old British-born female with no previously diagnosed cardiac disease presented with a one-year history of progressive exertional dyspnoea. Chest radiography demonstrated cardiomegaly, and the N-terminal pro-B-type natriuretic peptide concentration was 1,800 pg/mL. Transthoracic echocardiography showed very severe mitral stenosis with characteristic rheumatic morphology, a mitral valve area of 0.33 cm² by planimetry, and a mean transmitral gradient of 16.6 mmHg. Associated findings included mild mitral regurgitation, tricuspid valve abnormalities with moderate-to-severe tricuspid regurgitation, and discordant aortic valve findings consistent with a low-flow, low-gradient pattern of aortic stenosis, an estimated pulmonary artery systolic pressure of approximately 105-110 mmHg, left ventricular systolic impairment, and impaired right ventricular longitudinal systolic function. Further history identified intermittent involuntary left-hand movements, arthralgia, and an annular abdominal eruption with centra

Researchers at Weill Cornell Medicine and Hospital for Special Surgery have identified a previously elusive population of stem cells that appears to produce the body's tendons and ligaments, the connective tissues that link muscles and bones. The scientists also found evidence that these cells can become overactive in the lower spine, where they may contribute to lumbar spinal stenosis. The condition affects an estimated 103 million people worldwide and develops when thickened ligaments reduce space inside the spinal canal. This narrowing can put pressure on nerves and lead to pain, numbness and difficulty walking.

Pakistani health officials have confirmed the seventh polio case of 2026 for Pakistan from Karachi East District in Sindh. The affected child is a six-month-old male from Union Council Jamali Colony of Karachi East. The last case from Karachi was reported in December 2024. Of this year’s 7 reported cases, five are from Khyber Pakhtunkhwa (four from southern KP alone) and two are from Sindh. Despite an overall decline in wild poliovirus transmission, Karachi has continued to report environmental detections throughout the year, indicating that ongoing transmission remains a real threat for children. Subscribe to Outbreak News TV on YouTubeIn 2026, Pakistan has already implemented four large-scale polio campaigns, protecting more than 45 million children multiple times, alongside smaller targeted oral and injectable vaccination campaigns in high-risk areas. In September, a subnational campaign protected over 29.3 million children across the country, while the next vaccination round is scheduled from November 2-8 to protect nearly 24 million in 97 districts, including all districts of Karachi.

The Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) adopted a positive opinion on October 15, recommending an extension of indication for AstraZeneca’s H5N1 pandemic influenza vaccine.1 The extension removes the upper age limit from the vaccine’s current indication, which covers children and adolescents aged 12 months to younger than 18 years.2,3Pandemic influenza vaccine H5N1 AstraZeneca (pandemic influenza vaccine [H5N1] [live attenuated, nasal]; AstraZeneca) is an intranasal pandemic preparedness vaccine with conditional EU authorization since 2016.³ It is intended for use only after an official pandemic declaration and in line with official recommendations.¹What the CHMP Indication Extension Means AstraZeneca applied to remove the upper age limit based on efficacy and safety data already submitted in the original marketing authorization application, according to the CHMP agenda.² The revised indication covers active immunisation against influenza in an officially declared pandemic situation, used in accordance with official recommendations.¹ Adults would become eligible alongside children aged 12 months and older once the change