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  • Open Access


    Enhanced Route Optimization for Wireless Networks Using Meta-Heuristic Engineering

    S. Navaneetha Krishnan1, P. Sundara Vadivel2,*, D. Yuvaraj3, T. Satyanarayana Murthy4, Sree Jagadeesh Malla5, S. Nachiyappan6, S. Shanmuga Priya7

    Computer Systems Science and Engineering, Vol.43, No.1, pp. 17-26, 2022, DOI:10.32604/csse.2022.021590

    Abstract Wireless Sensor Networks (WSN) are commonly used to observe and monitor precise environments. WSNs consist of a large number of inexpensive sensor nodes that have been separated and distributed in different environments. The base station received the amount of data collected by the numerous sensors. The current developments designate that the attentFgion in applications of WSNs has been increased and extended to a very large scale. The Trust-Based Adaptive Acknowledgement (TRAACK) Intrusion-Detection System for Wireless Sensor Networks (WSN) is described based on the number of active positive deliveries and The Kalman filter used in Modified Particle Swarm Optimization (MPSO) has… More >

  • Open Access


    One-Stage Correction with Intra- and Extraatrial Rerouting of Anomalous Systemic and Pulmonary Venous Return and Intraventricular Repair of Double Outlet Right Ventricle in a Patient with Heterotaxy Syndrome

    Helena Staehler1, Carina Hopfner2, Masamichi Ono1,*, Jürgen Hörer1

    Congenital Heart Disease, Vol.17, No.1, pp. 25-30, 2022, DOI:10.32604/CHD.2022.018366

    Abstract We report a very rare case of successful intracardiac correction in a patient with heterotaxy syndrome. The cardiac malformations included dextrocardia, double outlet right ventricle, pulmonary stenosis, interrupted inferior vena cava, hemiazygos continuation and total anomalous pulmonary venous return. One-stage correction was performed. The atrial procedure consisted of intra- and extraatrial rerouting of the anomalous systemic and pulmonary venous return. The hepatic veins were detached and diverted to the left atrium via an extracardiac conduit. The correction of the double outlet right ventricle was accomplished by intraventricular redirection of the blood flow from the left ventricle to the aorta. The… More >

  • Open Access


    Isolation of the Left Subclavian Artery in D-Transposition of the Great Arteries with Right Aortic Arch

    Kotaro Hine*, Kohei Ogata, Keiko Saitou, Norio Mizukaki, Hiroko Arai, Hitoshi Yoda

    Congenital Heart Disease, Vol.16, No.4, pp. 369-371, 2021, DOI:10.32604/CHD.2021.014516

    Abstract Abnormal branching of the aorta associated with the right aortic arch (RAA) has been reported as isolation of left subclavian artery (ILSA), isolation of left common carotid artery, isolation of brachiocephalic artery. ILSA is a rare aortic branch anomaly that originates in the left subclavian artery from the pulmonary artery via ductus arteriosus. Several reports have described ILSA associated with 22q11.2 deletion syndrome and tetralogy of Fallot. Here, we present a very unusual case of RAA with ILSA associated with D-transposition of the great arteries and inferior vena cava interrupted with azygos continuation. More >

  • Open Access


    Hemodynamic, biological, and right ventricular functional changes following intraatrial shunt repair in patients with flow-induced pulmonary hypertension

    Chih-Hsin Hsu1,2, Jun-Neng Roan1,3, Jieh-Neng Wang4, Chien-Chi Huang5, Chao-Jung Shih3, Jyh-Hong Chen2,6, Jing-Ming Wu4, Chen-Fuh Lam7,8

    Congenital Heart Disease, Vol.12, No.4, pp. 533-539, 2017, DOI:10.1111/chd.12479

    Abstract Objectives: Atrial septal defects may result in pulmonary hypertension and right heart remodeling. We analyzed improvements in patients with flow-induced pulmonary hypertension and the activation of endothelial progenitor cells after flow reduction.
    Design: This prospective cohort study included 37 patients who were admitted for an occluder implantation. Blood samples were collected before and after the procedure. We determined the number of endothelial progenitor cells in outgrowth colonies and serum Hsp27 concentrations. Daily performance and cardiothoracic ratio were reevaluated later.
    Results: Closure of the defect significantly reduced the pulmonary pressure and B-type natriuretic peptide levels. The cardiothoracic ratio and daily performance… More >

  • Open Access


    Influence of Clip Locations on Intraaneurysmal Flow Dynamics in Patient-specific Anterior Communicating Aneurysm Models with Different Aneurysmal Angle

    Lizhong Mu1, *, Qingzhuo Chi1, Changjin Ji2, Ying He1, Ge Gao3

    CMES-Computer Modeling in Engineering & Sciences, Vol.116, No.2, pp. 175-197, 2018, DOI:10.31614/cmes.2018.04191

    Abstract To improve aneurysm treatment, this study examined the influence of clip locations on hemodynamic factors in patient-specific anterior communicating artery (ACoA) aneurysms with different aneurysmal angle. We proposed a simplified classification of ACoA aneurysms using aneurysmal angle, defined by the angle of pivot of the aneurysmal dome and the virtual two-dimensional plane created by both proximal A2 segments of anterior cerebral artery (ACA). ACoA aneurysms with three different aneurysmal angles, which are 15°, 80° and 120°, were analyzed in our study. In this work, we obtained hemodynamics before and after clipping surgery with three clip locations based on clinical clipping… More >

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