检索结果-南通市图书馆

Cranio-cervical bone hyperpneumatization: An overview and illustrative case

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Acute Disease 2018年第4期7卷 145-148页

作者： Mohammed Maan AbdulAzeez Padilla-Zambrano Huber salima B.Alsaadi Cabreras-Nanclares B.Vladimir Luis Rafael Moscote salazar samer s.hoz College of Medicine Baghdad UniversityBaghdadIraq College of Medicine University of CartagenaCartagena de IndiasColombia Neuroradiology Department Neurosurgery Teaching HospitalBaghdadIraq Department of Neurosurgery Red-Latino-Colombia Neurosurgery Department Neurosurgery Teaching HospitalBaghdadIraq

The pneumatization of regions such as the apex of the temporal crag, the mastoid cells and the perilaberytic region is considered physiological in adults. The process of craniocervical pneumatization in unhealthy adults derives from a dysfunction at the level of the eustachian tube, which provides a valve effect causing an increase in pressure at the level of the middle ear, forcing the entry of air into the dome of the skull through the opening of the occipitomastoidal suture. The process of standard pneumatization of the temporal bones, begins in the final weeks preceding birth, characterized by a decrease in the embryonic mesenchyme at the antrum level and progresses through childhood until adolescence, when the stone portion at the level of the rock is pneumatized;Normal variants have been reported, such as pneumatization that extends from the temporal scale to behind the sigmoid sinus. With regard to the process of hyperneumatization, several etiologies have been proposed that a congenital process versus an acquired process to develop this condition should be compared. The present illustrative case is a seventy-three years old male presented to the outpatient clinic with chronic recurrent occipital headache, already investigated by general practitioner for elevated blood pressure which was excluded. We had checked him to exclude the cervical spinal origin of the occipital headache which was then excluded too. This case scenario demonstrates the debate about how to deal with such cases and thus the review will bring the attention of those who take care of such radiological findings to keep in mind the possible causes and complications according to the reported cases till now. We concluded that the hyperpneumatization of the craniocervical junction is an uncommon radiological finding that is usually asymptomatic although it can entail serious complications in some instances, especially when it enlarges progressively, which may be due to an acquired process. Thus,

关键词： Craniocervical bone Hyperpneumatization of cranial bones

The use of non-living animals as simulation models for cranial neurosurgical procedures: a literature review

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Chinese Neurosurgical Journal 2020年第4期6卷 230-234页

作者： Zahraa F.Al-sharshahi samer s.hoz Mohammed A.Alrawi Mohammed A.sabah saja A.Albanaa Luis Rafael Moscote-salazar Department of Neurosurgery Neurosurgery teaching HospitalBaghdadIraq College of Medicine University of BaghdadBaghdadIraq RED LATINO Latin American Trauma&Intensive Neuro-Care OrganizationBogotáColombia

simulation plays a pivotal role in neurosurgical training by allowing trainees to develop the requisite expertise to enhance patient *** models have been used for simulation ***-living animal models offer a range of benefits,including affordability,availability,biological texture,and a comparable similarity to human *** this paper,we review the available literature on the use of non-living animals in neurosurgical simulation *** aim to answer the following questions:(1)what animals have been used so far,(2)what neurosurgical approaches have been simulated,(3)what were the trainee tasks,and(4)what was the experience of the authors with these models.A search of the PubMed Medline database was performed to identify studies that examined the use of non-living animals in cranial neurosurgical simulation between 1990 and *** initial search yielded a total of 70 *** careful screening,we included 22 articles for qualitative *** compared the reports in terms of the(1)animal used,(2)type of surgery,and(3)trainee *** articles were published between 2003 and *** simulations were performed on three types of animals,namely sheep,cow,and *** authors designed specific,task-oriented approaches and concluded that the models used were adequate for replicating the surgical *** on non-living animal heads has recently gained popularity in the field of neurosurgical ***-living animal models are an increasingly attractive option for cranial neurosurgical simulation *** models enable the acquisition and refinement of surgical skills,with the added benefits of accessibility and *** date,16 different microneurosurgical cranial approaches have been replicated on three non-living animal models,including sheep,cows,and *** review summarizes the experience reported with the use of non-living animal models as alternative laboratory tools for cranial neurosurgi

关键词： Neurosurgery Cranial simulation Non-living sheep swine Cow

Intracranial ricocheted-bullet injuries: An overview and illustrative case

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Acute Disease 2018年第5期7卷 186-190页

作者： Mohammed Maan AbdulAzeez Ali Adnan Dolachee Padilla-Zambrano Huber Mendoza-Florez Romario Haitham Ahmcd Obaid Alaa H.Arakwazi Mustafa M.Altaweel samer s.hoz College of Medicine/University of Baghdad BaghdadIraq Department of Neurosurgery College of MedicineAL-Qadisiyah UniversityIraq Neurosurgery Department Neurosurgery Teaching HospitalBaghdadIraq Centro de Investigaciones Biomédicas Cartagena Neurotrauma Research Group Research LineFaculty of MedicineUniversity of CartagenaCartagena de IndiasColombia

The impact of a bullet by firearm is a mortal entity that in recent years has been on the rise due to the increase in crime,confrontations,among other acts of *** injuries by firearm account for 33.3% of all fatal injuries from this type of *** resulted in a significant number of disabilities with its burden cost at a global *** types of bullet injuries to the head include:penetrating (inlet without outlet),perforating (through and through),tangential (not enter the skull,causing coupe injury),ricochet (intracranial bouncing of bullet) and careening (*** skull but not brain,runs in the subdural space).There are several situations that can occur once the bullet enters the body or into the intracranial *** association of the bullet trajectory with the final position of the bullet within the body raise the suspicion for additional phenomena involvement,this can be explained by either internal bullet ricochet or internal bullet *** former usually represents an active movement and the latter is a passive *** ricocheting of bullets forms up to 25% of all penetrating bullet injuries to the *** bullets types are commonly tumbling and have an unpredictable *** surgical management for intracranial bullet injury developed over decades from the time of Harvey Cushing and the World War I till the ***,the accepted intervention ranges from simple wound care to a proper surgery that includes hematoma evacuation,removal of only accessible bone fragments and foreign bodies,dural repair and wound debridement with or without decompressive *** pressure monitoring is generally *** reported a thirty-three years old *** of homicidal bullet injury to the *** with Glasgow Coma scale score of 8 (best eye response:*** motor response:4,best verbal response:2),upon examination a right parietal (near vertex) inlet without outlet was ***

关键词： Trauma Head Injury Ricocheted

Pharmacological potential of acetazolamide in traumatic intracranial hypertension

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Acute Disease 2018年第4期7卷 149-151页

作者： López-Cepeda Daniela Ramos-Villegas Yancarlos Padilla-Zambrano Huber s. Andrade-López Andrea Quintana-Pájaro Loraine Corrales-santander Hugo samer s.hoz Luis Rafael Moscote-salazar 无 University of Cartagena Cartagena de IndiasBolivarColombia Center for Biomedical Research Faculty of Medicine-University of CartagenaCartagena Colombia Cartagena Neurotrauma Research Group Universidad de CartagenaColombia Coordinator Center for Biomedical Research(CIB) Faculty of Medicine-University of CartagenaCartagena Colombia Medicine Program-Rafael Nú?ez University Corporation CartagenaColombia specialist in Neurosurgery Faculty of Medicine-University of CartagenaCartagena de IndiasBolívarColombia Department of Neurosurgery Neurosurgery teaching Hospital-BaghdadIraq

Traumatic brain injuries are an important cause of morbidity and mortality around the world. These types of lesions are often associated with increased intracranial pressure and cerebral edema, proper management of this can reduce tissue damage of the brain and improve brain perfusion. The use of acetazolamide is not indicated in guidelines for the management of intracranial hypertension, which is used to a great extent for the management of idiopathic intracranial hypertension. However, it is not yet known in the management of traumatic intracranial hypertension.

关键词： Brain injuries Intracranial hypertension Acetazolamide

Preoperative embolization of skull-base tumors: Indications, utility, and concerns

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Acute Disease 2019年第3期8卷 89-94页

作者： Luis Rafael Moscote-salazar Ali Adnan Dolachee Alexis Narvaez-Rojas Hayder Ali Al-saadi Arjan A.Najim Aysar Khudhair jassam Alyaa Khadim Abdulreda Ali Odai Mahmood Haya Jasim Mohammed samer s.hoz University of Cartagena Cartagena de IndiasColombia Department of surgery College of MedicineUniversity of Al-QadisiyahIraq Department of Neurosurgery Universidad Nacional Autonoma de NicaraguaManaguaNicaragua Department of Neurosurgery Neurosurgery Teaching HospitalBaghdadIraq

skull-base tumors are generally difficult to access compared with many other cranial lesions. Usually surgery remains the gold standard treatment for the majority of these tumors. However, in many cases, surgical resection is a challenge because the disease usually is already in the advanced stage by the time of diagnosis. Additionally, there are hypervascular lesions which cause excessive loss of blood, then results in multiple blood transfusions and prolonged operative time, increases the risk of neural injury and prevents complete excision. In order to reduce blood loss intraoperatively, many alternatives were available with the neurosurgical armamentarium, such as head elevation, intravenous use of tranexamic acid, total intravenous anesthesia and even preoperative embolization of tumors. However, preoperative embolization carries variable results, potentially aggravating edema and increasing tumor size. To ascertain the current status and the up-to-date indications, an evaluation of the therapeutic role of preoperative embolization was performed in the current study.

关键词： Pre-operative Embolization skull-base tumors

Data-Driven Learning Control Algorithms for Unachievable Tracking Problems

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

IEEE/CAA Journal of Automatica sinica 2024年第1期11卷 205-218页

作者： Zeyi Zhang Hao Jiang Dong shen samer s.saab the school of Mathematics Renmin University of ChinaBeijing 100872China IEEE the school of Engineering Lebanese American UniversityByblos 2038Lebanon

For unachievable tracking problems, where the system output cannot precisely track a given reference, achieving the best possible approximation for the reference trajectory becomes the objective. This study aims to investigate solutions using the Ptype learning control scheme. Initially, we demonstrate the necessity of gradient information for achieving the best ***, we propose an input-output-driven learning gain design to handle the imprecise gradients of a class of uncertain systems. However, it is discovered that the desired performance may not be attainable when faced with incomplete *** address this issue, an extended iterative learning control scheme is introduced. In this scheme, the tracking errors are modified through output data sampling, which incorporates lowmemory footprints and offers flexibility in learning gain *** input sequence is shown to converge towards the desired input, resulting in an output that is closest to the given reference in the least square sense. Numerical simulations are provided to validate the theoretical findings.

关键词： Data-driven algorithms incomplete information iterative learning control gradient information unachievable problems

A gated recurrent unit model to predict Poisson’s ratio using deep learning

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

Journal of Rock Mechanics and Geotechnical Engineering 2024年第1期16卷 123-135页

作者： Fahd saeed Alakbari Mysara Eissa Mohyaldinn Mohammed Abdalla Ayoub Ibnelwaleed A.Hussein Ali samer Muhsan syahrir Ridha Abdullah Abduljabbar salih Petroleum Engineering Department Universiti Teknologi PETRONAS32610Bandar Seri IskandarPerakMalaysia Institute of Hydrocarbon Recovery Universiti Teknologi PETRONAS32610Bandar Seri IskandarPerakMalaysia Gas Processing Center College of EngineeringQatar UniversityP.O.Box 2713DohaQatar Department of Chemical Engineering College of EngineeringQatar UniversityP.O.Box 2713DohaQatar Mechanical Engineering Department Universiti Teknologi PETRONAS32610Bandar Seri IskandarPerakMalaysia

static Poisson’s ratio(vs)is crucial for determining geomechanical properties in petroleum applications,namely sand *** models have been used to predict vs;however,the published models were limited to specific data ranges with an average absolute percentage relative error(AAPRE)of more than 10%.The published gated recurrent unit(GRU)models do not consider trend analysis to show physical *** this study,we aim to develop a GRU model using trend analysis and three inputs for predicting n s based on a broad range of data,n s(value of 0.1627-0.4492),bulk formation density(RHOB)(0.315-2.994 g/mL),compressional time(DTc)(44.43-186.9 μs/ft),and shear time(DTs)(72.9-341.2μ s/ft).The GRU model was evaluated using different approaches,including statistical error *** GRU model showed the proper trends,and the model data ranges were wider than previous *** GRU model has the largest correlation coefficient(R)of 0.967 and the lowest AAPRE,average percent relative error(APRE),root mean square error(RMsE),and standard deviation(sD)of 3.228%,1.054%,4.389,and 0.013,respectively,compared to other *** GRU model has a high accuracy for the different datasets:training,validation,testing,and the whole datasets with R and AAPRE values were 0.981 and 2.601%,0.966 and 3.274%,0.967 and 3.228%,and 0.977 and 2.861%,*** group error analyses of all inputs show that the GRU model has less than 5% AAPRE for all input ranges,which is superior to other models that have different AAPRE values of more than 10% at various ranges of inputs.

关键词： static Poisson’s ratio Deep learning Gated recurrent unit(GRU) sand control Trend analysis Geomechanical properties

sigmoid Micro-Perforation and Pelvic Abscess Masquerading as Hyperactive Delirium

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Case Reports in Clinical Medicine 2024年第8期13卷 315-320页

作者： samer Alkhuja susheer Gandotra Hirenkumar Faldu Pravinkumar Patel Olutunde Odeyemi Department of Medicine Thomas Jefferson Medical School Thomas Jefferson University Lehigh Valley Health Network-Pocono Stroudsburg PA USA

Diagnoses Background: Delirium is a common finding in elderly patients with sepsis. Early identification of the cause of delirium and treatment is important to avoid any worsening of mental or physical status. sepsis secondary to colonic micro-perforation (CMP) in a patient with a history of diverticulosis should be high on the list of differential diagnosis. Case Report: We present a case of a patient who presented with hyperactive sepsis-associated delirium (sAD). six days after the presentation, the patient started complaining of abdominal pain. An abdominal and pelvic computed tomography (CT) scan showed free air in the abdomen. The patient underwent surgical intervention and treatment with intravenous antibiotics. Pathological examination showed CMP connected to the patient’s history of diverticulosis. Delirium superimposed on dementia (DsD) resulted in the worsening of both the mental and physical status of our patient with the need for placement in a nursing home.

关键词： Delirium Dementia Colon Perforation sepsis Diverticulosis

Discharge summaries Based sentiment Detection Using Multi-Head Attention and CNN-BiGRU

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Computer systems science & Engineering 2023年第7期46卷 981-998页

作者： samer Abdulateef Waheeb school of Computer science and Engineering Northwestern Polytechnical UniversityXi’an710072China

Automatic extraction of the patient’s health information from the unstructured data concerning the discharge summary remains *** summary related documents contain various aspects of the patient health condition to examine the quality of treatment and thereby help improve decision-making in the medical *** a sentiment dictionary and feature engineering,the researchers primarily mine semantic text ***,choosing and designing features requires a lot of *** proposed approach is an unsupervised deep learning model that learns a set of clusters embedded in the latent space.A composite model including Active Learning(AL),Convolutional Neural Network(CNN),BiGRU,and Multi-Attention,called ACBMA in this research,is designed to measure the quality of treatment based on discharge summaries text sentiment *** is utilized for extracting the set of local features of text *** BiGRU network was utilized to extract the text’s global features to solve the issues that a single CNN cannot obtain global semantic information and the traditional Recurrent Neural Network(RNN)gradient *** prove that the ACBMA method can demonstrate the effectiveness of the suggested method,achieve comparable results to state-of-arts methods in sentiment detection,and outperform them with accurate ***,several algorithm studies ultimately determined that the ACBMA method is more precise for discharge summaries sentiment analysis.

关键词： sentiment analysis lexicon discharge summaries active learning multi-head attention mechanism