bluuebunny/crossref_metadata_2025_split huggingface dataset:
Contrast-enhanced Computed Tomography Imaging of Splenic Artery Aneurysms and Pseudoaneurysms: A Single-center Experience
Authors: Therakathu Jacob , Panwala Hirenkumar Kamleshkumar , Bhargava Salil , Eapen Anu , Keshava Shyamkumar Nidugala , David Deepu 
Published: August 2018

Aim:
The aim of our study was to evaluate the computed tomography (CT) imaging features of splenic artery aneurysm and pseudoaneurysm and to identify the disease conditions related to the same. We also wanted to ascertain any relationship between these associated disease conditions and the imaging features of the aneurysms.

Materials and Methods:
This retrospective study included patients diagnosed to have splenic artery aneurysms on contrast-enhanced CT examination between January 2001 and January 2016. Data were obtained from the picture archiving and communication system. The size, number, location, morphology, the presence of thrombosis, calcification, and rupture of the aneurysms were evaluated.

Results:
A total of 45 patients were identified with a mean age of 45 years. Splenic artery aneurysms were idiopathic in 12 (26.6%) patients. In the remaining patients, the main associated disease conditions included pancreatitis 15 (33%), chronic liver disease with portal hypertension 8 (18%), and extrahepatic portal vein obstruction (EHPVO) 6 (13%). Statistically significant findings included the relationship between EHPVO and multiple aneurysms (P = 0.002), chronic liver disease and fusiform aneurysm (P = 0.008), and smaller size of idiopathic aneurysms (P < 0.001).

Conclusion:
Based on this study, splenic artery aneurysms were associated with a variety of etiologies. The characteristics of the aneurysms such as size, location, and morphology vary with the associated disease conditions. These variations may have implications for the management.
A Study on the Use of Radiation-Protective Apron among Interventionists in Radiology
Authors: Livingstone Roshan Samuel , Varghese Anna , Keshava Shyamkumar N. 
Published: August 2018

Objective:
Radiation-protective aprons are commonly used by interventionists to protect against the harmful effects of ionizing radiation. Choice of appropriate aprons with respect to lead equivalence and weight is necessary for effective protection and reduced physical strain. This study evaluates the knowledge and practice of using radiation-protective aprons by interventionists.

Materials and Methods:
Ninety-one interventional radiologists who attended an annual interventional conference were provided with a questionnaire which included age, years of experience, area of expertise, type and weight of apron used, and physical strain caused due to the use of apron.

Results:
About 14.3% of the interventionists practiced in an angiographic suite for less than an hour a day, 45% for 2–4 h, 21% for 4–6 h, 10% for 6–10 h, and the rest above 10 h/day. About 68% of the interventionists wore 0.5 mm lead-equivalent (Pbeq) aprons; 15.4% with 0.25 mm Pbeq; about 5.5% with 0.35 mm Pbeq aprons, and the remaining were not aware of the lead equivalence. About 47% reported that they had body aches due to wearing single-sided aprons. Interventionists working more than 10 h/day wearing single-sided lead apron predominantly complained of shoulder pain and back pain.

Conclusion:
A large fraction of interventionists reported that they had physical strain. It is suggestive for interventionists to wear correct fit and light-weight aprons with appropriate lead equivalence.
Sociodemographic Profile, Semiology, and Etiology of Patients with Status Epilepticus: A Study from a Tertiary Care Hospital in North India
Authors: Qadir Wasim , Wani Khurshid Ahmad , Bhat Bilal Ahmad 
Published: August 2018

ABSTRACT
Background and Objectives: Despite advance in treatment of status epilepticus (SE), a major neurological emergency, it is still associated with mortality and morbidity. The objective of our study was to estimate sociodemographic profile, semiology, and etiology in the children with SE admitted in pediatric intensive care. Materials and Methods: Children between 1 month and 18 years with continuous seizure activity of >5 min or two or more sequential seizures without full recovery of consciousness between seizures, admitted in the Pediatric Intensive Care Unit of the Department of Pediatrics, Government Medical College, Srinagar, were included in the study. A semi-structured tool was designed to record the sociodemographic details. Detailed history, clinical examination, and investigations (including neuroimaging as and when needed) were used to determine the type of seizure and etiology. Results: A total of 51 patients were included in our study. Most of the patients were <5 years with 47.10% in 1–5 years’ age group and 43.10% in >1-year age group. Males (60.80%) outnumbered females. Thirty-nine patients (76.47%) belonged to “known” or “symptomatic” group with 35 (68.60%) of them presenting with SE as their fresh seizure. Thirty-nine (76.47%) of our patients had generalized tonic–clonic seizure (GTCS) type of SE. Conclusion: Most of the children (90%) were below the age of 5 years with male predominance. Most of the patients had SE as their first seizure without prior history of seizures with GTCSs was the most frequent seizure type.
Astrocytic Tumors in Mexico: An Overview of Characteristics and Prognosis in an Open Reference Center for Low-Income Population
Authors: Beltrán Jesús Quetzalcoatl , Soto-Abraham Julian Eduardo , Vidaurreta-Serrano Jorge , Macias Laura Graciela Chavez , Apo Erick Gómez , Ogando-Rivas Elizabeth 
Published: August 2018

ABSTRACT
Objective: The authors aimed to analyze the current epidemiology of high- and low-grade gliomas, follow-up strategies, and prognosis in a national reference center of a developing country. Materials and Methods: Medical records of patients diagnosed with intracranial gliomas from January 2012 to January 2016 were reviewed. Data were classified by age, symptoms, Karnofsky functional scale (KFS), tumor location, extent of resection (EOR), histopathology, hospital stay, Glasgow outcome scale (GOS), adjuvant treatments, overall survival (OS), and mortality. Results: Astrocytomas accounted for 28.2% of the intracranial tumors and 53.5% were male. Headache was the most common symptom, while sensory disturbance was the least frequent. The right cerebral hemisphere was involved in 56.5% of cases and frontal lobe in 31.3%. Gross total resection (GTR) was achieved in 18.1% cases, 35.3% subtotal resection, and 46.4% biopsy. Regarding the astrocytomas, 43.3% were low grade and 56.4% high grade. Low-grade tumors had the highest frequency in the fourth decade of life, while Grade III and IV in the fifth and seventh decades of life, respectively. In high-grade lesions, there was a slight male predominance (~1.4:1). The initial KFS was regularly 80 for low-grade gliomas and 60 for high-grade. By 1-month postdischarge, the score decreased by 10 points. About half of the patients (47.5%) received adjuvant therapy after surgery. From the Glasgow Outcome Scale (GOS), the majority had a form of disability and 30-month OS was above 88% for Grade I-II and 0% for Grade III and IV. Conclusions: Astrocytic tumors were the most frequently noted intra-axial tumors. Age, histological grade, and EOR are important prognostic factors. These results are similar to other reports; however, increased variability was noted when treatment-related factors were considered. Additional studies are necessary to identify the factors related to these treatment results.
Highlights:
• There are no data describing the basic epidemiology and prognosis of high-grade and low-grade gliomas in Mexico.• Intracranial astrocytomas account for 28.2% tumors in our institution.• Age, histological grade, and EOR are important prognostic factors.• Poor overall survival was achieved in our target population.
Response of Syrinx Associated with Chiari I Malformation to Posterior Fossa Decompression with or without Duraplasty and Correlation with Functional Outcome: A Prospective Study of 22 Patients
Authors: Kumar Anil , Pruthi Nupur , Devi B. Indira , Gupta Arun Kumar 
Published: August 2018

ABSTRACT
Background: The aim of the study is to correlate the surgical outcome with radiological changes in patients with Chiari I malformation (CMI) with syrinx. We also compared long-term functional and radiographic outcome in CM1 patients treated with posterior fossa decompression (PFD) with or without duroplasty. Patients and Methods: From December 2013 to October 2015, 22 patients who underwent surgery with the diagnosis of CMI and syrinx were included in the study. Measurements were performed on preoperative and postoperative magnetic resonance (MR) scans using the same software. All patients underwent PFD with or without duroplasty. Clinical results were evaluated on the basis of the Chicago Chiari Outcome Scale (CCOS). We assessed the degree of resolution of syrinx and outcome of Chiari decompression with PFD versus PFD with duroplasty. Mean duration of follow-up was 12.4 ± 5.37 months (range: 6–24 months). Results: Out of 19 patients in whom syrinx diameter decreased on postoperative MR imaging, 17 (89.5%) improved based on CCOS and 2 (10.5%) were unchanged while out of three patients in whom syrinx worsened, 2 (66.7%) improved and 1 (33.3%) was unchanged (P = 0.37). The cord diameter was found to have decreased in 12 patients and of these 11 (91.7%) improved. The cord diameter increased in 10 patients, but 8 (80%) improved (P = 0.57). The mean changes in syrinx, cord, and syrinx/cord ratio were studied in both groups with and without duroplasty, were not statistically significant. In this study, radiological parameters failed to predict functional outcome. Conclusions: The outcome does not correlate with change in any of the syrinx-related factors. Surgical decompression with or without duroplasty does not have a statistically significant relationship in the degree of syrinx resolution. Surgical decompression without duroplasty provides the benefits of surgical decompression while avoiding the complications of intradural techniques.
Isolated Wrist Drop Presenting as Acute Stroke: Rare Case Report with Review of Literature
Authors: Goel Khushbu , Singh Saraj Kumar , Agarwal Himanshu , Mukherji Joy Dev , Kumar Mukesh 
Published: August 2018

ABSTRACTIsolated wrist drop is very unusual clinical presentation due to cerebral stroke. It is highly confused with peripheral neuropathy. However, timely detection of acute stroke as one of the causes of wrist drop is necessary as it changes the line of treatment and prognosis significantly. Here we are presenting a 62 year-old diabetic and hypertensive male patient who came with acute onset weakness of right hand. Initial Magnetic resonance imaging (MRI) of the brain showed hyperacute infarct in the splenium of corpus callosum. Magnetic resonance angiography (MRA) was normal. Repeat brain MRI on next day showed acute infarct at hand area of motor strip in posterior frontal region. The patient underwent intravenous thrombolysis and thereafter improved significantly. Isolated hand palsy is a rare presentation of stroke, often mistaken for peripheral lesion.
Association between Indoor Air Pollution and Cognitive Impairment among Adults in Rural Puducherry, South India
Authors: Krishnamoorthy Yuvaraj , Sarveswaran Gokul , Sivaranjini K. , Sakthivel Manikandanesan , Majella Marie Gilbert , Kumar S. Ganesh 
Published: August 2018

ABSTRACT
Background: Recent evidences showed that outdoor air pollution had significant influence on cognitive functioning of adults. However, little is known regarding the association of indoor air pollution with cognitive dysfunction. Hence, the current study was done to assess the association between indoor air pollution and cognitive impairment among adults in rural Puducherry. Methodology: A community-based cross-sectional study was done among 295 adults residing in rural field practice area of tertiary care institute in Puducherry during February and March 2018. Information regarding sociodemographic profile and household was collected using pretested semi-structured questionnaire. Mini-Mental State Examination was done to assess cognitive function. We calculated adjusted prevalence ratios (aPR) to identify the factors associated with cognitive impairment. Results: Among 295 participants, 173 (58.6) were in 30–59 years; 154 (52.2%) were female; and 59 (20.0%) were exposed to indoor air pollution. Prevalence of cognitive impairment in the general population was 11.9% (95% confidence interval [CI]: 8.7–16.1). Prevalence of cognitive impairment among those who were exposed to indoor air pollution was 27.1% (95% CI: 17.4–39.6). Individuals exposed to indoor air pollution (aPR = 2.18, P = 0.003) were found to have two times more chance of having cognitive impairment. Conclusion: About one-fourth of the participants were exposed to indoor air pollution, out of which more than one-fourth was found to have cognitive impairment which is twice that of the general population. Hence, prevention of exposure to indoor air pollution needs to be done through increased availability to cleaner fuels for household usage.
Neuro-Ophthalmology at the Bedside: A Clinical Guide
Authors: Heckmann Josef G. , Vachalova Ivana , Lang Christoph J. G. , Pitz Susanne 
Published: August 2018

ABSTRACTNeuro-ophthalmological signs and symptoms are common in the emergency department but are a frequent source of diagnostic uncertainties. However, neuro-ophthalmological signs often allow a precise neuro-topographical localization of the clinical problem. A practical concept is presented how to perform a neuro-ophthalmological examination at the bedside and to interpret key findings under the aspect of emergency medicine with limited resources.
Acute Hemiplegia in Children: A Prospective Study of Etiology, Clinical Presentation, and Outcome from Western India
Authors: Chinnabhandar Vasant , Singh Amitabh , Mandal Anirban , Parmar B. J. 
Published: August 2018

ABSTRACT
Background: Hemiplegia/hemiparesis denotes the weakness of one side of the body. In contrast to adults, hemiparesis in children occurs secondary to a variety of etiological conditions. Aims: The aim of this study was to assess the clinical, laboratory, and radiological features of children with acquired hemiparesis/hemiplegia of nontraumatic origin and intended to find its underlying etiology in the Indian children. Settings and Design: This prospective, observational study was carried out at a tertiary care hospital in western India. Materials and Methods: Children aged between 3 months and 14 years admitted to the in-patient department of a tertiary care hospital with acquired hemiparesis/hemiplegia were included over 2 years. Children with perinatal insult, preexisting neurological diseases, neurotrauma, hemiplegic migraine, and Todd's paralysis were excluded from the study. Detailed clinical examination, laboratory, and radiological investigations were done, and an attempt was made to find the underlying etiology. These children were also followed up after 1 month of discharge to look at short-term outcomes. All clinical information was recorded in a predesigned performa and was managed with Microsoft Excel spreadsheet. Frequency was presented as number (N) and percentage (%). Results: Fifty-five children (male:female = 1.2:1), predominantly between 1 and 5 years of age were studied. Apart from weakness (92.8%), vomiting (70.9%), fever (58.2%), and seizure (58.2%) were the predominant presenting complaints. One-fifth of them had comorbidities; most commonly congenital heart disease. Cerebral infarction was the most common pathology in neuroimaging. Central nervous system infection (45.5%) was the most common identified etiology followed by vascular events (21.8%). Among those who could be followed up at 1 month, about 65% had some improvement in their power. Conclusion: Infections continue to be an important cause of neurodisability in the developing countries.
Orbital Tuberculosis with Intracranial Extension
Authors: Diyora Batuk , Giri Sachin Ashok , Bhende Bhagyashri , Giri Deepali , Kukreja Sanjay , Sharma Alok 
Published: August 2018

ABSTRACTWe report a case of orbital tuberculosis (OTB) with intracranial extension without active tuberculosis in the rest of the body organs or a history of tuberculosis infection. A 29-year-male patient presented with left-sided painful periorbital swelling with pus discharging sinus and visual impairment. Orbital computed tomography revealed contrast enhancing cystic mass lesion in the left orbit with erosion of the lateral and superior orbital wall with intracranial extension. After the failure of 3 weeks’ course of oral antibiotics, the patient underwent left lateral orbitotomy, pus was drained out, and granulation tissues were excised. Histopathological examination confirmed OTB. The patient had received antituberculous treatment. Periorbital swelling completely disappeared and vision improved over a period of 2 weeks. OTB should be considered in differential diagnosis of periorbital swelling especially when it does not respond to oral antibiotics.
Electrochemical Behavior of Alloy 825 at High-Temperature Pressurized Water–Chloride Solutions (30°C to 280°C)
Authors: Zhang Lefu , Wang Jiamei , Arjmand Farzin 
Published: August 2018

Variations in the transpassive potential (Et) and open circuit potential (OCP) of Alloy 825 were investigated at high-temperature pressurized water–Cl solutions. Using an experimental design strategy, the effects of temperature (T) (30°C to 280°C), Cl− concentration (10 ppb to 1,000 ppb), and dissolved oxygen (DO) concentration (0 ppb to 200 ppb) on the electrochemical responses (Et and OCP) of the alloy were analyzed by conducting only a short series of experiments. The optimum values of each factor was obtained from the designed matrix of the experiments and the constructed 3D response surface plots based on the most positive values of the Et and OCP. The optimum experimental conditions in which the most positive Et can be recorded was found as follows: T ≈ 30°C (significant), [Cl−] ≈ 10 ppb (significant), and [DO] ≈ 200 ppb (less significant). The most positive OCP values were recorded when the analyzed factors were as follows: T ≈ 120°C (significant), [DO] ≈ 200 ppb, and [Cl−] ≈ 10 ppb (less significant). Finally, the microscopic surface analysis of the alloy coupons revealed the great impact of temperature on the oxide film formation on Alloy 825.
Aerosol distribution in the northern Gulf of Guinea: local anthropogenic sources, long-range transport, and the role of coastal shallow circulations
Authors: Flamant Cyrille , Deroubaix Adrien , Chazette Patrick , Brito Joel , Gaetani Marco , Knippertz Peter , Fink Andreas H. , de Coetlogon Gaëlle , Menut Laurent , Colomb Aurélie , Denjean Cyrielle , Meynadier Rémi , Rosenberg Philip , Dupuy Regis , Dominutti Pamela , Duplissy Jonathan , Bourrianne Thierry , Schwarzenboeck Alfons , Ramonet Michel , Totems Julien 
Published: August 2018

Abstract. The complex vertical distribution of aerosols over coastal southern West Africa (SWA) is investigated using airborne observations and numerical simulations. Observations were gathered on 2 July 2016 offshore of Ghana and Togo, during the field phase of the Dynamics-Aerosol-Chemistry-Cloud Interactions in West Africa project. This was the only flight conducted over the ocean during which a downward-looking lidar was operational. The aerosol loading in the lower troposphere includes emissions from coastal cities (Accra, Lomé, Cotonou, and Lagos) as well as biomass burning aerosol and dust associated with long-range transport from central Africa and the Sahara, respectively. Our results indicate that the aerosol distribution on this day is impacted by subsidence associated with zonal and meridional regional-scale overturning circulations associated with the land–sea surface temperature contrast and orography over Ghana and Togo, as typically observed on hot, cloud-free summer days such as 2 July 2016. Furthermore, we show that the zonal circulation evidenced on 2 July is a persistent feature over the Gulf of Guinea during July 2016. Numerical tracer release experiments highlight the dominance of aged emissions from Accra on the observed pollution plume loadings over the ocean, in the area of aircraft operation. The contribution of aged emission from Lomé and Cotonou is also evident above the marine boundary layer. Given the general direction of the monsoon flow, the tracer experiments indicate no contribution from Lagos emissions to the atmospheric composition of the area west of Cotonou, where our airborne observations were gathered. The tracer plume does not extend very far south over the ocean (i.e. less than 100 km from Accra), mostly because emissions are transported northeastward near the surface over land and westward above the marine atmospheric boundary layer. The latter is possible due to interactions between the monsoon flow, complex terrain, and land–sea breeze systems, which support the vertical mixing of the urban pollution. This work sheds light on the complex – and to date undocumented – mechanisms by which coastal shallow circulations can distribute atmospheric pollutants over the densely populated SWA region.
Causal dependences between the coupled ocean–atmosphere dynamics over the tropical Pacific, the North Pacific and the North Atlantic
Authors: Vannitsem Stéphane , Ekelmans Pierre 
Published: August 2018

Abstract. The causal dependences (in a dynamical sense) between the dynamics of three
different coupled ocean–atmosphere basins, the North Atlantic, the North
Pacific and the tropical Pacific region (Nino3.4), have been explored using
data from three reanalysis datasets, namely ORA-20C, ORAS4 and ERA-20C. The
approach is based on convergent cross mapping (CCM) developed by
Sugihara et al. (2012) that allows for evaluating the dependences between
variables beyond the classical teleconnection patterns based on correlations. The use of CCM on these data mostly reveals that (i) the tropical Pacific
(Nino3.4 region) only influences the dynamics of the North Atlantic region
through its annual climatological cycle; (ii) the atmosphere over the North
Pacific is dynamically forcing the North Atlantic on a monthly basis; (iii)
on longer timescales (interannual), the dynamics of the North Pacific and
the North Atlantic are influencing each other through the ocean dynamics,
suggesting a connection through the thermohaline circulation. These findings shed a new light on the coupling between these three different regions of the globe. In
particular, they call for a deep reassessment of the way teleconnections are
interpreted and for a more rigorous way to evaluate dynamical dependences
between the different components of the climate system.