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Full-Text Articles in Medicine and Health Sciences
Prediction Of Mortality In Stroke Patients Using Multilayer Perceptron Neural Networks, Necdet Süt, Yahya Çeli̇k
Prediction Of Mortality In Stroke Patients Using Multilayer Perceptron Neural Networks, Necdet Süt, Yahya Çeli̇k
Turkish Journal of Medical Sciences
We aim ed to predict mortality in stroke patients by using multilayer perceptron (MLP) neural networks. Materials and methods: A data set consisting of 584 stroke patients was analyzed using MLP neural networks. The effect of prognostic factors (age, hospitalization time, sex, hypertension, atrial fibrillation, embolism, stroke type, infection, diabetes mellitus, and ischemic heart disease) on mortality in stroke were trained with 6 different MLP algorithms [quick propagation (QP), Levenberg-Marquardt (LM), backpropagation (BP), quasi-Newton (QN), delta bar delta (DBD), and conjugate gradient descent (CGD)]. The performances of the MLP neural network algorithms were compared using the receiver operating characteristic (ROC) …
Predictors Of Warfarin Use In Patients With Non-Valvular Atrial Fibrillation Who Presented To The Cardiology Outpatient Clinic Of A Tertiary Hospital In Turkey: An Observational Study, Faruk Ertaş, Hasan Kaya, Zuhal Aritürk Atilgan, Mehmet Ali̇ Elbey, Mesut Aydi̇n, Mehmet Ata Akil, Mustafa Oylumlu, Mehmet Siddik Ülgen
Predictors Of Warfarin Use In Patients With Non-Valvular Atrial Fibrillation Who Presented To The Cardiology Outpatient Clinic Of A Tertiary Hospital In Turkey: An Observational Study, Faruk Ertaş, Hasan Kaya, Zuhal Aritürk Atilgan, Mehmet Ali̇ Elbey, Mesut Aydi̇n, Mehmet Ata Akil, Mustafa Oylumlu, Mehmet Siddik Ülgen
Turkish Journal of Medical Sciences
The aim of this study was to investigate the predictors of warfarin use in patients with non-valvular atrial fibrillation (AF). This study was the first to be conducted in a Turkish population. Materials and methods: Patients who presented to our outpatient clinic with the diagnosis of AF between September 2008 and October 2009 were enrolled. The patients were classified according to the CHADS2 risk scoring system recommended by the AHA/ACC/ESC guidelines for the classification of stroke risk in non-valvular AF patients. The probable variables influencing the use of warfarin were determined as age, sex, income level, healthcare coverage, lifestyle, place …
Limb Remote Ischemic Postconditioning Is Effective But Also Time-Course-Limited In Protecting The Brain From I/R Injury, Ce Xu, Chengju Yi, Haidong Guo, Qiangqiang Liu, Li Wang, Hongxia Li
Limb Remote Ischemic Postconditioning Is Effective But Also Time-Course-Limited In Protecting The Brain From I/R Injury, Ce Xu, Chengju Yi, Haidong Guo, Qiangqiang Liu, Li Wang, Hongxia Li
Turkish Journal of Medical Sciences
To determine the effect of limb remote ischemic postconditioning (LIPoC) against cerebral ischemia reperfusion in rats and the relationship between cycle number or remote postconditioning episode duration and the protective function of LIPoC. Materials and methods: Transient focal ischemia/reperfusion was induced by 90 min of middle cerebral artery occlusion (MCAO) with nylon monofilament and 22 h of reperfusion in male Sprague-Dawley rats. The animals underwent LIPoC consisting of 1, 2, or 3 cycles, with each occlusion or release lasting for 5 min (5/5), 10 min (10/10), or 15 min (15/15) of bilateral femoral artery occlusion/release. Neurological score, infarct volume, water …