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Spacer-type tibial osteotomy versus open wedge high tibial osteotomy and unicompartmental knee arthroplasty for Kellgren-Lawrence grade 3-4 medial unicompartmental knee osteoarthritis in patients younger than 65 years.
J Orthop Surg Res
January 2025
Department of Orthopedics, Qingdao Municipal Hospital, 1 Jiaozhou Road, Shinan District, QingDao, Shandong Province, 266399, China.
Background: Spacer-type tibial osteotomy have been proven a novel and effective osteotomy to treat osteoarthritis, while lack of comparison with other surgical methods in younger patients. This study aims to evaluate the short-term clinical outcomes of spacer-type tibial osteotomy versus open wedge high tibial osteotomy (OWHTO) and unicompartmental knee arthroplasty (UKA) for Kellgren-Lawrence (K-L) grade 3-4 osteoarthritis (OA) in patients younger than 65 years.
Methods: This retrospective study analyzed a total of 224 patients with K-L grade 3-4 knee OA treated from March 2018 to November 2020.
Author Correction: Global loss of promoter-enhancer connectivity and rebalancing of gene expression during early colorectal cancer carcinogenesis.
Nat Cancer
January 2025
Department of Genetics, Stanford School of Medicine, Stanford, CA, USA.
Subendocardial ischemia: does CMD really exist?
Cardiovasc Revasc Med
January 2025
Weatherhead PET Imaging Center, Division of Cardiology, Department of Medicine, McGovern Medical School at UTHealth and Memorial Hermann Hospital, Houston, TX, United States of America.
Patients with angina but without obstructive epicardial coronary disease still require a specific mechanistic diagnosis to enable targeted treatment. The overarching term "coronary microvascular dysfunction" (CMD) has been applied broadly - but is it correct? We present a series of case examples culminating a systematic exploration of our large clinical database to distinguish among four categories of coronary pathophysiology. First, by far the largest group of "no stenosis angina" patients exhibits subendocardial ischemia during intact flow through diffuse epicardial disease during dipyridamole vasodilator stress.
View Article and Find Full Text PDFRegional Image Quality Scoring for 2-D Echocardiography Using Deep Learning.
Ultrasound Med Biol
January 2025
Department of Circulation and Medical Imaging, Norwegian University of Science and Technology - NTNU, Trondheim, Norway; Health Research, SINTEF, Trondheim, Norway.
Objective: To develop and compare methods to automatically estimate regional ultrasound image quality for echocardiography separate from view correctness.
Methods: Three methods for estimating image quality were developed: (i) classic pixel-based metric: the generalized contrast-to-noise ratio (gCNR), computed on myocardial segments (region of interest) and left ventricle lumen (background), extracted by a U-Net segmentation model; (ii) local image coherence: the average local coherence as predicted by a U-Net model that predicts image coherence from B-mode ultrasound images at the pixel level; (iii) deep convolutional network: an end-to-end deep-learning model that predicts the quality of each region in the image directly. These methods were evaluated against manual regional quality annotations provided by three experienced cardiologists.
Right Ventricular Outflow Tract Obstruction: Transcatheter Correction In Tetralogy Of Fallot: A Pilot Study.
Am J Cardiol
January 2025
Department of Anaesthesiology, All India Institute of Medical Sciences, Kalyani, Kolkata.
This study evaluated transcatheter approach for relieving right ventricular outflow tract (RVOT) obstruction using combined non-compliant balloon dilatation of the RVOT and conal artery occlusion in patients with Tetralogy of Fallot (TOF), both uncorrected and post-intra-cardiac repair (ICR) restenosis. A prospective study was conducted from January 2022 to June 2023, including 40 symptomatic patients aged over 12 years with RVOT obstruction in TOF. Exclusion criteria included moderate to severe pulmonary regurgitation.
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