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Wearable Multimodal Optical Analyzers: Physiological Variability and Reproducibility of Measurements.
J Biophotonics
January 2025
Research and Development Center of Biomedical Photonics, Orel State University, Orel, Russia.
The work is devoted to the study of the physiological variability of the microcirculatory-tissue system (MTS) parameters under normal conditions and during functional tests. The results were obtained in vivo using multimodal wearable analyzers implementing methods of laser Doppler flowmetry and fluorescence spectroscopy. Comprehensive data analysis and calculation of the coefficients of variation of the MTS parameters of the human body for various topographic and anatomical areas of the skin were carried out.
View Article and Find Full Text PDFMonitoring of perioperative tissue perfusion and impact on patient outcomes.
J Cardiothorac Surg
January 2025
Department of Anesthesiology, Zhongda hospital, Southeast University, No. 87 Dingjiaqiao, Nanjing City, 210009, Jiangsu Province, China.
Monitoring perioperative tissue perfusion is crucial in clinical anesthesia to protect organs and ensure patient safety. Indicators like hemodynamic parameters, tissue metabolism, and microcirculation markers are used for assessment. Studies show intraoperative hypotension negatively impacts outcomes, though blood pressure alone may not reflect tissue perfusion accurately.
View Article and Find Full Text PDFImpairment of Microcirculation Parameters in Patients with a History of Diabetic Foot Ulcers.
Medicina (Kaunas)
December 2024
Laboratoire de Biologie Tissulaire et Ingénierie Thérapeutique, CNRS UMR 5305, 69367 Lyon, France.
: According to the International Working Group on Diabetic Foot (IWGDF) risk classification, the estimated risk of developing a diabetic foot ulcer (DFU) is much higher in patients with a history of DFUs (Grade 3) compared to those with a peripheral neuropathy but without a history of DFUs (Grades 1 and 2). It has been suggested that microcirculation impairment is involved in DFU genesis and could be taken into account to refine the existing risk classification. The aim of this study was to evaluate microcirculation parameters in patients with diabetes according to their estimated DFU risk.
View Article and Find Full Text PDFUtility of Free Fibula Flap With an Extended Banana-shaped Skin Paddle for Oro-mandibular Reconstructions.
Plast Reconstr Surg Glob Open
January 2025
Department of Plastic and Reconstructive Surgery, Tokyo Women's Medical University, Tokyo, Japan.
The free fibula flap is a common technique for mandibular bone defects. However, its limited skin paddle is disadvantageous in cases with significant soft-tissue defects. A free fibula dual-skin paddle flap is used for medium-sized soft-tissue defects.
View Article and Find Full Text PDFSex and age-related day-to-day variability in the skin microcirculation during post-occlusive reactive hyperemia.
Microvasc Res
January 2025
Primary Health Care Center, Department of Health, Medicine and Caring Sciences, Faculty of Medicine and Health Sciences, Linköping University, Linköping, Sweden; Wallenberg Centre for Molecular Medicine, Linköping University, Linköping, Sweden. Electronic address:
Introduction: Little is known about the day-to-day variability of different skin microcirculation parameters, and how this variability is influenced by age and sex. The aim was to examine the day-to-day variability of microcirculatory parameters in relation to age and sex.
Methods: The cutaneous microcirculation was measured using a fiber optic probe integrating laser Doppler flowmetry (LDF) and diffuse reflectance spectroscopy (DRS) to measure oxygen saturation, red blood cell (RBC) tissue fraction, speed-resolved and conventional perfusion.
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