Resistive index (RI) and peak systolic velocity (PSV) are important Color doppler ultrasonography (CDU) parameters indicating the microcirculation and flow velocity in tissues. We aim to determine the changes in vascular flow characteristics in clubfoot after Ponseti treatment. There were three groups: the clubfoot group, the healthy group (the unaffected feet with unilateral deformities) and the control group. The Pirani severity scoring and CDU examinations of the foot were performed at initial admission and the 6th-month follow-up after Ponseti treatment. A total of 34 feet of 24 patients were included in the study. The mean age at initial treatment was 20.9 ± 22.5 days. The RI and PSV values of the clubfeet and the healthy group were similar. Resistive index values were significantly lower, and PSV values were significantly higher in the control group. After Ponseti treatment, only RI of the dorsalis pedis artery decreased, but PSV increased for all of the arteries. Recurrence of the deformity deteriorates the improvement in vascular development. Resistive index and PSV values were not related to the initial severity of the deformity. The RI values were higher, and PSV values were lower in clubfoot patients compared with the normal control group. Vascular pathology is a component of clubfoot, and treatment success improves vascular development. The improvement of microcirculation and blood flow velocity together was detected only in the dorsalis pedis artery. The effect of vascular flow change on prognosis was not detected.
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http://dx.doi.org/10.1097/BPB.0000000000001063 | DOI Listing |
Sci Rep
December 2024
Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing, 100029, China.
The incident angle of seismic waves influences the dynamic response of rock slopes. However, the relationship between the back-slope effect in strong earthquake areas and the incident angle has not been well-explained. Based on the equivalent nodal force method and the viscoelastic artificial boundary theory, the oblique incidence of seismic P-wave and SV-wave are carried out in FLAC3D software.
View Article and Find Full Text PDFFront Neurol
December 2024
Department of Neurosurgery, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, University of Electronic Science and Technology of China, Chengdu, China.
Objective: To evaluate postoperative cerebral perfusion changes and their influencing factors in carotid endarterectomy (CEA) patients by integrating multimodal monitoring methods, including cerebral regional oxygen saturation (rSO), carotid ultrasound (CU), computed tomographic angiography (CTA), and computed tomographic perfusion imaging (CTP), with computational fluid dynamics (CFD) assessment.
Methods: We conducted a cohort study on patients with internal carotid artery (ICA) stenosis undergoing CEA at our institution. Pre- and postoperative assessments included CU, CTA, CTP, and rSO monitoring.
Int J Cardiovasc Imaging
December 2024
Department of Radiology, Austin Health, Heidelberg, VIC, 3084, Australia.
A four-dimensional phase-contrast magnetic resonance imaging sequence with respiratory-controlled adaptive k-space reordering (ReCAR-4DPC) offers potential benefits of improved scan efficiency and motion robustness. The purpose of this study was to evaluate the reproducibility of flow measurement using this technique and to compare hemodynamic metrics obtained to two-dimensional phase contrast MRI (2DPC)-derived metrics of the thoracic aorta. ReCAR-4DPC was performed with identical scan parameters in 15 healthy volunteers (6M,9F, mean [range] 37 [23-47] years) and 11 patients with thoracic aortic dissection (6M,5F, 56 [31-81] years) and acquisition time was recorded.
View Article and Find Full Text PDFNiger J Clin Pract
November 2024
Department of Intensive Care Unit, Basaksehir Cam and Sakura Training and Research City Hospital, Istanbul, Turkey.
Background: INTELLIVENT-Adaptive Support Ventilation (I-ASV; C6; Hamilton Medical; Bonaduz, Switzerland) is a closed-loop ventilation mode that continuously controls the patient's ventilation and oxygenation. It sets the minute ventilation, PEEP, and oxygen levels based on the targets set by the clinician and on physiological input from the patient.
Aim: The aim was to compare I-ASV and PSV modes regarding weaning in intensive care patients.
J Clin Ultrasound
November 2024
Unit of Fetal Medicine, National Institute of Women's, Children's and Adolescents' Health Fernandes Figueira, Oswaldo Cruz Foundation (IFF/Fiocruz), Rio de Janeiro, Rio de Janeiro, Brazil.
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