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FIXED POINT RESULTS ON METRIC-TYPE SPACES

Acta Mathematica Scientia 2014年第4期34卷 1237-1253页

作者： monica cosentino Peyman SALIMI Pasquale VETRO Dipartimento di Matematica e Informatica Universita degli Studi di PalermoVia Archirafi3490123 PalermoItaly Young Researchers and Elite Club Rasht BranchIslamic Azad UniversityRashtIran

In this paper we obtain fixed point and common fixed point theorems for self- mappings defined on a metric-type space, an ordered metric-type space or a normal cone metric space. Moreover, some examples and an applica... 详细信息

关键词： metric-type space fixed point common fixed point Suzuki type mappings cone metric space integral equation

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Preoperative and postoperative risk factors for periprosthetic joint infection in primary total hip arthroplasty:A 1-year experience

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World Journal of Orthopedics 2022年第10期13卷 903-910页

作者： Giuseppe Ferdinando Tella Cesare Donadono Francesco Castagnini Barbara Bordini monica cosentino Michele Di Liddo Francesco Traina Ortopedia-Traumatologia e Chirurgia protesica e dei reimpianti d'anca e di ginocchio IRCCS Istituto Ortopedico RizzoliBologna 40125Italy Laboratorio di Tecnologia Medica IRCCS Istituto Ortopedico RizzoliBologna 40125Italy

BACKGROUND Periprosthetic joint infection(PJI)in primary total hip replacement(THR)is one of the most important threats in orthopedic surgery,so one important surgeon’s target is to avoid or early diagnose a *** the incidence of PJI is very low(0.69%)in our department,with an average follow-up of 595 d,this infection poses a serious threat due to the difficulties of treatment and the lower functional outcomes after *** To study the incidence of PJI in all operations occurring in the year 2016 in our department to look for predictive signs of potential *** We counted 583 THR for 578 patients and observed only 4 cases of infection(0.69%)with a mean follow-up of 596 d(min 30,max 1451).We reviewed all medical records to collect the data:duration and time of the surgery,presence,type and duration of the antibiotic therapy,preoperative diagnosis,blood values before and after surgery,transfusions,presence of preoperative drugs(in particularly anticoagulants and antiaggregant,corticosteroids and immunosuppressants),presence of some comorbidities(high body mass index,blood hypertension,chronic obstructive pulmonary disease,cardiac ischemia,diabetes,rheumatological conditions,previous local infections).RESULTS No preoperative,intraoperative,or postoperative analysis showed a higher incidence of *** did not find any class with evident major odds of *** our study,we did not find any border value to predict PJI and all patients had similar values in both groups(non-PJI and PJI).Only some categories,such as female patients,showed more frequency of PJI,but this difference related to sex was not statistically *** We did not find any category with a higher risk of PJI in THR,probably due to the lack of few cases of infection.

关键词： Primary total hip replacement Periprosthetic joint infection Preoperative risk factors Postoperative risk factors Preoperative and postoperative blood value Total hip arthroplasty

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Vitamin D and acute myocardial infarction

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World Journal of Cardiology 2017年第1期9卷 14-20页

作者： Valentina Milazzo monica De Metrio Nicola cosentino Giancarlo Marenzi Elena Tremoli Centro Cardiologico Monzino I.R.C.C.S.20138 MilanItaly

Vitamin D deficiency is a prevalent condition,cutting across all ethnicities and among all age groups,and occurring in about 30%-50% of the population. Besides vitamin D established role in calcium homeostasis,its deficiency is emerging as a new risk factor for coronary artery disease. Notably,clinical investigations have suggested that there is an association between hypovitaminosis D and acute myocardial infarction(AMI). Not only has it been linked to incident AMI,but also to increased morbidity and mortality in this clinical setting. Moreover,vitamin D deficiency seems to predispose to recurrent adverse cardiovascular events,as it is associated with post-infarction complications and cardiac remodeling in patients with AMI. Several mechanisms underlying the association between vitamin D and AMI risk can be involved. Despite these observational and mechanistic data,interventional trials with supplementation of vitamin D are controversial. In this review,we will discuss the evidence on the association between vitamin D deficiency and AMI,in terms of prevalence and prognostic impact,and the possible mechanisms mediating it. Further research in this direction is warranted and it is likely to open up new avenues for reducing the risk of AMI.

关键词：维生素 D 尖锐心肌的梗塞发生预后

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