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Evidence-based approach to providing informed consent for hip fracture surgery during the COVID-19 era

World Journal of Orthopedics 2021年第6期12卷 386-394页

作者： Rory Cuthbert David Ferguson babar kayani Saeef Haque Aoun Ali Asif Parkar Peter Bates Krishna Vemulapalli Department of Trauma&Orthopaedic Surgery Queen's Hospital-RomfordLondon RM70AGUnited Kingdom Department of Trauma&Orthopaedic Surgery Royal London HospitalLondon E11FRUnited Kingdom

BACKGROUND Hip fractures are the most common reason for inpatient orthopaedic trauma *** surgical intervention for hip fractures has remained a clinical priority throughout the coronavirus disease 2019(COVID-19)*** this,there is a paucity of clinical guidance addressing the informed consent process for hip fracture surgery in COVID-19 positive *** is of paramount medicolegal importance in a high-risk patient *** To quantify the additional perioperative risks for COVID-19 positive patients undergoing hip fracture surgery and provide clinicians with an evidence-based framework to establish an informed consent *** Two hundred and fifty nine consecutive patients undergoing surgical intervention for hip fractures in four hospitals in the United Kingdom were recruited.51 patients were confirmed positive for *** outcomes were analyzed over a 30-d postoperative ***-19 positive and COVID-19 negative patients were compared after adjustment for confounding *** COVID-19 positive patients had more intensive care admissions(27%vs 5%,P<0.001),longer inpatient stays(median 23 d vs 9 d,P<0.001)and a higher 30-d mortality(29%vs 10%,P=0.001)than COVID-19 negative *** complications were evident in 74.5%of COVID-19 positive patients.35.3%of COVID-19 positive patients suffered postoperative lower respiratory tract infections with 13.7%developing acute respiratory distress syndrome(ARDS)and 9.8%experiencing symptomatic thromboembolic *** The COVID-19 pandemic has created uncertainty in the medical community worldwide and poses unique challenges in providing informed consent for ***-19 positive patients undergoing hip fracture surgery should be consented for the additional risk of postoperative complications(including lower respiratory tract infection,ARDS,deep vein thrombosis and pulmonary embolism),increased requirement for intensive care admission,lo

关键词： COVID-19 Hip fractures Mortality Morbidity Outcome assessment Informed consent

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On Computer Implementation for Comparison of Inverse Numerical Schemes for Non-Linear Equations

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Computer Systems Science & Engineering 2021年第3期36卷 493-507页

作者： Mudassir Shams Naila Rafiq Nazir Ahmad Mir babar Ahmad Saqib Abbasi Mutee-Ur-Rehman kayani Department of Mathematics and Statistics Riphah International UniversityI-14Islamabad44000Pakistan Department of Mathematics NUMLIslamabadPakistan Department of Mathematics Comsats UniversityIslamabad44000Pakistan

In this research article,we interrogate two new modifications in inverse Weierstrass iterative method for estimating all roots of non-linear equation *** modifications enables us to accelerate the convergence order of inverse Weierstrass method from 2 to *** analysis proves that the orders of convergence of the two newly constructed inverse methods are *** computer algebra system Mathematica,we find the lower bound of the convergence order and verify it *** planes of the inverse simultaneous methods and classical iterative methods are generated using MATLAB(R2011b),to present the global convergence properties of inverse simultaneous iterative methods as compared to classical *** non-linear models are taken from Physics,Chemistry and engineering to demonstrate the performance and efficiency of the newly constructed *** CPU time,and residual graphs of the methods are provided to present the dominance behavior of our newly constructed methods as compared to existing inverse and classical simultaneous iterative methods in the literature.

关键词： Non-linear equation inverse iterative method simultaneous method basins of attraction lower bound of convergence

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