Search results for "Data"
showing 10 items of 12992 documents
Femtosecond laser versus mechanical microkeratome laser in situ keratomileusis for myopia: Metaanalysis of randomized controlled trials.
2011
Purpose To examine differences in efficacy, accuracy, safety, and changes in aberrations between femtosecond and mechanical microkeratome laser in situ keratomileusis (LASIK) for myopia. Setting Department of Ophthalmology, Shanghai First People's Hospital Affiliated to Shanghai Jiaotong University, Shanghai, China. Design Evidence-based manuscript. Methods Data sources, including PubMed, Medline, EMBASE, and Cochrane Controlled Trials Register, were searched to identify potentially relevant prospective randomized controlled trials. Primary outcome measures were efficacy (uncorrected distance visual acuity ≥20/20), accuracy (±0.50 diopter mean spherical equivalent), and safety (loss of ≥2 l…
Temporal trends and determinants of peripartum hysterectomy in Lombardy, Northern Italy, 1996-2010.
2013
Purpose: To analyze the temporal trends of peripartum hysterectomy (PH) in the period 1996-2010 in Lombardy, Italy. Methods: Using data from the Regional Database, PH ratios/1,000 deliveries were calculated from 1996 to 2010, in strata of age and mode of delivery among women resident in Lombardy, Italy. PH cases were identified searching the database for the ICD-9 and ICD-10 codes for subtotal and total hysterectomy. PH ratios/1,000 deliveries in strata of age, mode of delivery and calendar year were computed. Poisson's regression analysis was used to test trend over time. Results: A total of 905 PH and 1,289,163 deliveries were recorded between 1996 and 2010. The overall PH ratio was 0.70/…
Epidemiology of distal radius fractures in children and adults during the COVID-19 pandemic - a two-center study
2021
Abstract Background Distal radius fractures (DRFs) constitute 15–21% of all fractures. There are no detailed data on the possible changes in the epidemiology and treatment of DRFs in children and adults during the Covid pandemic. The purpose of our study was a comprehensive assessment of the impact of the COVID-19 pandemic on distal radius fractures (DRF) epidemiology, including both children and adults and various fracture fixation methods in two large trauma centers in Poland. Methods This study compared the medical data on the treatment of distal radius fractures in Poland in two periods: the period of the COVID-19 pandemic (from March 15 to October 15, 2020) and the corresponding period…
Evidence of unbalanced regulatory mechanism of heart rate and systolic pressure after acute myocardial infarction
2002
The interactions between systolic arterial pressure (SAP) and R-R interval (RR) fluctuations after acute myocardial infarction (AMI) were investigated by measures of synchronization separating the feedback from the feedforward control and capturing both linear and nonlinear contributions. The causal synchronization, evaluating the ability of RR to predict SAP (χs/t) or vice versa (χt/s), and the global synchronization (χ) were estimated at rest and after head-up tilt in 35 post-AMI patients, 20 young and 12 old. Significance and nonlinearity of the coupling were assessed by surrogate data analysis. Tilting increased the number of young subjects in which RR-SAP link was significant (from 17…
Surgical therapy of recurrent vulvar cancer.
2005
Objective The success of various surgical interventions in 201 cases with recurrent vulvar carcinoma was examined in the light of patients' pretreatment, surgical therapy, plastic reconstruction, and postoperative disease course. Study design A databank of standardized clinical data was analyzed using statistical procedures. Results Therapy was selected on an individual basis according to tumor status. Recurrence at a site distant from the primary tumor, particularly in the inguinal region, indicated a markedly unfavorable prognosis. In contrast, tumors recurring locally did not exhibit any significant differences. Plastic surgery reconstruction led to improvements with respect to operabili…
Progestogens to prevent preterm birth in twin pregnancies:an individual participant data meta-analysis of randomized trials
2012
Abstract Background Preterm birth is the principal factor contributing to adverse outcomes in multiple pregnancies. Randomized controlled trials of progestogens to prevent preterm birth in twin pregnancies have shown no clear benefits. However, individual studies have not had sufficient power to evaluate potential benefits in women at particular high risk of early delivery (for example, women with a previous preterm birth or short cervix) or to determine adverse effects for rare outcomes such as intrauterine death. Methods/design We propose an individual participant data meta-analysis of high quality randomized, double-blind, placebo-controlled trials of progestogen treatment in women with …
Minimally Invasive Pelvic Exenteration for Gynecologic Malignancies: A Multi-Institutional Case Series and Review of the Literature.
2019
ABSTRACT Study Objective To assess the feasibility and efficacy of minimally invasive pelvic exenteration (MIPE) in a multi-institutional Italian case series of women with gynecologic cancer and a review of the literature. Design Retrospective cohort study (Canadian Task Force classification II-2). Setting Three Italian university/teaching hospitals: “Agostino Gemelli” Foundation University Hospital in Rome, "ARNAS Civico Di Cristina Benfratelli” Hospital in Palermo, and “Maggiore della Carita” Hospital in Novara. Patients We reviewed all consecutive cases with gynecologic malignancies in this multi-institutional setting recorded between March 2014 and June 2017. Women with primary or centr…
Clinical and echographical control protocol of haemarthrosis in haemophilia patients with inhibitors: evaluation of the efficacy of recombinant facto…
2008
Summary. The intention of the ‘clinical and echographical protocol of evaluation the efficacy of recombinant activated factor VII in the haemarthrosis’ (EFFISEVEN protocol) was to provide an extensive study of the evolution of haemarthrosis, and second, of its repercussions on the degenerative process of joints. The clinical evaluation of haemarthroses and their evolution is based on a well-established methodology, although very few studies have sought to determine the correlation between pain, mobility and the objective data regarding the haemorrhage. We believe that it is necessary to unify criteria and that the EFFISEVEN protocol may contribute data that improve standards which, in turn…
The smokeless tobacco habit and DNA damage: A systematic review and meta-analysis.
2018
Background The aim of this systematic review was to evaluate the frequency of micronuclei or other DNA damage in the oral mucosa of adults that have smokeless tobacco habits compared to adults that not have these habits. Material and Methods We searched PubMed, Scopus, Web of Science, LILACS, BBO and Cochrane Library and SIGLE. We also surveyed gray literature. We included only clinical trials that compare the frequency of micronuclei or other DNA damage in the oral mucosa of adults that have smokeless tobacco habits compared to adults that not have these habits. Quality assessments of the selected trials were evaluated by two independent reviewers, using the Effective Public Health Practic…
A Graph-Grammar Approach to Represent Causal, Temporal and Other Contexts in an Oncological Patient Record
1996
AbstractThe data of a patient undergoing complex diagnostic and therapeutic procedures do not only form a simple chronology of events, but are closely related in many ways. Such data contexts include causal or temporal relationships, they express inconsistencies and revision processes, or describe patient-specific heuristics. The knowledge of data contexts supports the retrospective understanding of the medical decision-making process and is a valuable base for further treatment. Conventional data models usually neglect the problem of context knowledge, or simply use free text which is not processed by the program. In connection with the development of the knowledge-based system THEMPO (The…