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Cerebral aneurism

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https://www.readbyqxmd.com/read/27410411/atrial-natriuretic-factor-is-it-responsible-for-hyponatremia-and-natriuresis-in-neurosurgery
#1
Ana Paula Devite Cardoso Gasparotto, Antonio Luis Eiras Falcão, Carolina Kosour, Sebastião Araújo, Eliane Araújo Cintra, Rosmari Aparecida Rosa Almeida de Oliveira, Luiz Claudio Martins, Desanka Dragosavac
OBJECTIVE: To evaluate the presence of hyponatremia and natriuresis and their association with atrial natriuretic factor in neurosurgery patients. METHODS: The study included 30 patients who had been submitted to intracranial tumor resection and cerebral aneurism clipping. Both plasma and urinary sodium and plasma atrial natriuretic factor were measured during the preoperative and postoperative time periods. RESULTS: Hyponatremia was present in 63...
June 2016: Revista Brasileira de Terapia Intensiva
https://www.readbyqxmd.com/read/26971811/tendencies-in-cerebral-aneurism-treatment-analysis-of-a-hospital-series
#2
A Lago, R López-Cuevas, J I Tembl, G Fortea, D Górriz, F Aparici, V Parkhutik
INTRODUCTION AND OBJECTIVE: To discover if there have been changes in the treatment time for SAH in our hospital environment. MATERIAL AND METHODS: Comparative analysis of 571 patients treated at Hospital Universitari la Fe during 2 different time periods. The SAH-OLD group consisted of 462 patients attended consecutively between April 1997 and March 2005, while SAH-NEW comprised 109 patients attended consecutively between March 2007 and April 2010. We analysed demographic factors, risk factors, severity at time of admission, time to arteriography, diagnosis of aneurysm, use of surgical or endovascular treatment and time to treatment, frequency of neurological complications, in-hospital deaths, and modified Rankin Scale (mRS) at discharge...
March 11, 2016: Neurología: Publicación Oficial de la Sociedad Española de Neurología
https://www.readbyqxmd.com/read/26884688/diagnostic-approach-and-current-treatment-options-in-childhood-vasculitis
#3
REVIEW
Kenan Barut, Sezgin Şahin, Amra Adroviç, Özgür Kasapçopur
All inflammatory changes in the vessel wall are defined as vasculitis. Pediatric vasculitis may present with different clinical findings. Although Henoch-Schönlein purpura which is the most common pediatric vasculitis generally recovers spontaneously, it should be monitorized closely because of the risk of renal failure. Although Kawasaki disease is easy to diagnose with its classical findings, the diagnosis may be delayed in case of incomplete Kawasaki disease. Kawasaki disease should be considered especially in infants in case of prolonged fever even if the criteria are not fully met and intravenous immunoglobulin treatment should be administered without delay in order to prevent development of coronary artery aneurism...
December 2015: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/26466502/-a-case-of-cesarean-section-preceded-by-coil-embolization-for-subarachnoid-hemorrhage-under-general-anesthesia
#4
Yoshifumi Okada, Tomoko Hayasaka, Satoko Chiba, Ryou Nishino, Yasuhiro Endo, Masanori Yamauchi
We report a case of subarachnoid hemorrhage due to rupture of a cerebral aneurysm in a 29-year-old woman in the 34th week of pregnancy. The aneurysm at the anterior communicating artery was up to 10 mm in diameter on magnetic resonance imaging and scheduled for emergent coil embolization. Simultaneously, obstetricians determined that cesarean section should be performed. Maintaining anesthesia by propofol and remifentanil, coil embolization was first performed to avoid aneurism re-rupture, and the patient was then transferred from an angiography room to an operating room where a cesarean section was performed...
September 2015: Masui. the Japanese Journal of Anesthesiology
https://www.readbyqxmd.com/read/26356510/-surgical-treatment-of-cerebral-vascular-diseases
#5
A N Konovalov, Yu M Filatov, T P Tissen, Sh Sh Eliava, S B Yakovlev, I N Pronin, D Yu Usachev, A V Golanov, V A Lukshin, S R Arustamyan, A Kheyreddin, O D Shekhtman, I A Sazonov, S A Maryashev, O B Belousova, A E Korshunov, Yu V Pilipenko, A V Shmigelsky
Theoretical and practical aspects of the complex treatment of brain and spinal vascular diseases using microsurgical, endovascular and radiosurgical methods are considered. Authors present the data demonstrating that, due to the implementation of the program of development of vascular centers in the Russian Federation, considerable progress was made in the treatment of cerebral aneurisms and hemorrhagic stroke. In author's opinion, wide introduction of surgical methods in the treatment of occlusive lesions of the blood vessels supplying the brain is needed...
2015: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/26260204/-re-bleeding-predictors-in-patients-with-aneurysmal-subarachnoid-haemorrhage-and-delayed-neurosurgical-treatment
#6
Dannys Rivero Rodríguez, Claudio Scherle Matamoros, Leda Fernández Cúe, José Luis Miranda Hernández, Yanelis Pernas Sánchez, Jesús Pérez Nellar
OBJECTIVE: To evaluate the re-bleeding predictors in patients with delayed treatment of aneurysmal subarachnoid hemorrhage. PATIENTS AND METHODS: A prospective cohort study enrolled 261 patients with aneurysmal subarachnoid hemorrhage, attending in Hermanos Ameijeiras Hospital from October 2005, and June 2014. RESULTS: An increased re-bleeding risk in the multivariate analysis was associated with grade III (OR 2.01; 95% CI; 1.06-3.84) and grade IV (OR 3...
March 2016: Neurocirugía
https://www.readbyqxmd.com/read/26141676/near-infrared-spectroscopy-assessed-cerebral-oxygenation-during-open-abdominal-aortic-aneurysm-repair-relation-to-end-tidal-co2-tension
#7
H Sørensen, H B Nielsen, N H Secher
During open abdominal aortic aneurism (AAA) repair cerebral blood flow is challenged. Clamping of the aorta may lead to unintended hyperventilation as metabolism is reduced by perfusion of a smaller part of the body and reperfusion of the aorta releases vasodilatory substances including CO2. We intend to adjust ventilation according end-tidal CO2 tension (EtCO2) and here evaluated to what extent that strategy maintains frontal lobe oxygenation (ScO2) as determined by near infrared spectroscopy. For 44 patients [5 women, aged 70 (48-83) years] ScO2, mean arterial pressure (MAP), EtCO2, and ventilation were obtained retrospectively from the anesthetic charts...
August 2016: Journal of Clinical Monitoring and Computing
https://www.readbyqxmd.com/read/25882107/supravalvular-aortic-stenosis-associated-to-infectious-endocarditis-and-cerebral-vascular-disease-in-a-patient-with-williams-beuren-syndrome
#8
Jesús De Rubens Figueroa, Alfonso Marhx, Javier López Terrazas, Alexis Palacios Macedo
The Williams-Beuren syndrome is a rare genetic disease characterized by: (a) typical facial features; (b) psychomotor retardation with a specific neurocognitive profile; (c) cardiovascular condition and (d) likely transient hypocalcemia in infancy. The objective of this study was to describe the clinic evolution and diagnosis of patient with this syndrome that was associated with endocarditis caused by Streptococcus parasanguis in the ascending aorta and an aneurism located in the fronto-temporal area, which produced a parenchymal hematoma in the left lobe, and subarachnoid hemorrhage...
October 2015: Archivos de Cardiología de México
https://www.readbyqxmd.com/read/25837239/surgery-of-brain-aneurysm-in-a-brainsuite-%C3%A2-theater-a-review-of-105-cases
#9
Giancarlo D'Andrea, Alessandro Frati, Andrea Pietrantonio, Pietro Familiari, Antonino Raco, Luigi Ferrante
INTRODUCTION: The BrainSuite(®) is a highly integrated operating theater designed mainly for brain tumor surgery. The issues concerning its routine use in vascular neurosurgery have not been discussed in literature to date. We report our experience of surgical treatment of cerebral aneurysms in the BrainSuite(®), with a view to evaluating safety, feasibility, advantages, disadvantages, and contraindications. MATERIAL AND METHODS: Retrospectively, we reviewed all the patients affected by ruptured and unruptured aneurysms that underwent craniotomy with clipping between January 2007 and May 2013 and a subsequent minimum 12-month follow up...
June 2015: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/25365656/on-the-integration-of-the-baroreflex-control-mechanism-in-a-heterogeneous-model-of-the-cardiovascular-system
#10
P J Blanco, P R Trenhago, L G Fernandes, R A Feijóo
The aim of the present work is to describe the integration of a mathematical model for the baroreceptor reflex mechanism to provide regulatory action into a dimensionally heterogeneous (3D-1D-0D) closed-loop model of the cardiovascular system. Such heterogeneous model comprises a 1D description of the arterial tree, a 0D network for the venous, cardiac and pulmonary circulations and 3D patient-specific geometries for vascular districts of interest. Thus, the detailed topological description of the arterial network allows us to perform vasomotor control actions in a differentiated way, while gaining insight about the effects of the baroreflex regulation over hemodynamic quantities of interest throughout the entire network...
April 2012: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/25088007/modeling-of-human-circle-of-willis-with-and-without-aneurisms
#11
Dmitry Ivanov, Alexander Dol, Olga Pavlova, Asel Aristambekova
PURPOSE: This paper includes results of the first stage of research aimed at the development of recommendations for physicians in order to help them to choose a particular type of cerebral arteries aneurysms treatment. METHODS: Recent studies show that the majority of aneurysms develop as a result of hemodynamic and degenerative lesions of the vascular wall. Obviously, such wall damage can be studied using the methods of continuum mechanics and numerical simulations...
2014: Acta of Bioengineering and Biomechanics
https://www.readbyqxmd.com/read/25033604/-the-analysis-of-complications-of-surgical-treatment-of-brain-aneurysms-in-patients-operated-on-in-the-late-posthemorrhagic-period
#12
Iu V Pilipenko, Sh Sh Éliava, S B Iakovlev, O B Belousova, S B Buklina, S R Arustomian, K G Mikeladze, A A Bondarenko, A E Bykanov
UNLABELLED: Most patients with brain aneurisms were operated on in the late posthemorrhagic period at the Burdenko Neurosurgical Institute. OBJECTIVE: To investigate the rate and structure of complications of microsurgical and endovascular surgery for different topographic anatomic variants of cerebral aneurysms in patients operated on in the late posthemorrhagic period in order to assess the risk of intervention in these patients. MATERIAL AND METHODS: The study group comprised 1074 patients with single brain aneurysms who had been treated at the Burdenko Neurosurgical Institute (Russian Academy of Medical Sciences) for the period from 2005 to 2012...
2014: Zhurnal Voprosy Neĭrokhirurgii Imeni N. N. Burdenko
https://www.readbyqxmd.com/read/24953318/-image-distortion-and-artifacts-caused-by-the-use-of-a-titanium-aneurism-clip-in-1-5-tesla-and-3-tesla-magnetic-resonance-imaging-effect-on-60cobalt-stereotactic-radiosurgery-treatment-planning
#13
Hisato Nakazawa, Osamu Yamamuro, Yukio Uchiyama, Masataka Komori
In gamma knife stereotactic radiosurgery (GKSRS) treatment planning, 1.5 tesla (T)-magnetic resonance imaging (MRI) is normally used to identify the target lesion. Image artifacts and distortion arise in MRI if a titanium clip is surgically implanted in the brain to treat cerebral aneurysm. 3-T MRI scanners, which are increasingly being adopted, provide imaging of anatomic structures with better clinical usefulness than 1.5-T MRI machines. We investigated signal defects and image distortions both close to and more distant from the titanium clip in 1...
June 2014: Nihon Hoshasen Gijutsu Gakkai Zasshi
https://www.readbyqxmd.com/read/24341044/-influence-of-cerebral-perfusion-pressure-and-cardiac-output-on-brain-oxygenation-and-metabolism
#14
Iu V Titova, S S Petrikov, A A Solodov, V V Krylov
The article contains results of examination of correlation between systemic hemodynamic and brain oxygenation and metabolism in patients with intracranial hemorrhage. Cardiac index (CI) and cerebral perfusion pressure (CPP) levels were compared to brain oxygenation and metabolism in 8 patients with intracranial hemorrhage (137 measurements). CI alterations didn't influence on PbrO2, glucose level or lactate/pyruvate ratio in the brain interstitial fluid in patients with traumatic brain injury. CPP elevation led to cerebral metabolism improvement...
July 2013: Anesteziologiia i Reanimatologiia
https://www.readbyqxmd.com/read/24151523/fluid-structural-analysis-of-human-cerebral-aneurysm-using-their-own-wall-mechanical-properties
#15
Alvaro Valencia, Patricio Burdiles, Miguel Ignat, Jorge Mura, Eduardo Bravo, Rodrigo Rivera, Juan Sordo
Computational Structural Dynamics (CSD) simulations, Computational Fluid Dynamics (CFD) simulation, and Fluid Structure Interaction (FSI) simulations were carried out in an anatomically realistic model of a saccular cerebral aneurysm with the objective of quantifying the effects of type of simulation on principal fluid and solid mechanics results. Eight CSD simulations, one CFD simulation, and four FSI simulations were made. The results allowed the study of the influence of the type of material elements in the solid, the aneurism's wall thickness, and the type of simulation on the modeling of a human cerebral aneurysm...
2013: Computational and Mathematical Methods in Medicine
https://www.readbyqxmd.com/read/24075318/prospective-study-of-kawasaki-disease-complications-review-of-115-cases
#16
Natália Ribeiro de M Alves, Cristina Medeiros R de Magalhães, Roseane de Fátima R Almeida, Regina Cândido R Dos Santos, Lenora Gandolfi, Riccardo Pratesi
OBJECTIVE: To draw attention to complications that might arise in any Kawasaki disease (KD) stage, risk factors contributing to the onset of complications and possible transient or permanent disease sequelae. METHODS: Prospective study (clinical cohort) conducted between April 2002 and April 2009 of 115 patients with KD admitted to the Pediatric Rheumatology Clinic of the General Hospital of the Federal District, Brazil. All patients were sequentially assessed with clinical and laboratory examinations, Doppler echocardiography, imitanciometry, auditory evoked potentials, psychological evaluation, ophthalmologic examination and, in one patient with chorea, cerebral magnetic resonance angiography...
May 2011: Revista da Associação Médica Brasileira
https://www.readbyqxmd.com/read/23394851/-subarachnoidal-hemorrhage-and-multiple-vascular-cerebral-abnormalities-in-%C3%AE-thalassemia-major
#17
J Svahn, T-H Cho, L Derex, L Mechtouff, N Nighoghossian
β-thalassemia is a genetic hemoglobinopathy, which can cause hypercoagulability, vessel wall damages and thromboembolic events. Spontaneous subarachnoidal hemorrhages are not commonly described in this affection. We report subarachnoidal hemorrhage, observed during the post-partum period in a 27-year-old woman suffering from β-thalassemia major. Brain MRI revealed complex vascular abnormalities: intracranial carotid occlusion, carotid micro-aneurisms, abnormally developed deep perforators and cortical arteries...
March 2013: Revue Neurologique
https://www.readbyqxmd.com/read/23098766/-anterior-cerebral-artery-aneurism-presenting-as-a-third-ventricular-mass-and-hydrocephalus-case-report
#18
REVIEW
Julián Castro Castro, Jesús Patricio Agulleiro Díaz, Juan Manuel Villa Fernández, Alfonso Pinzón Millán
Aneurysms which appear as third ventricular masses are uncommon; most are giant aneurysms arising from the basilar apex. We present the case of a 67-year-old male who was admitted to hospital with a 4-week history of gait instability, urinary incontinence and progressive visual loss. A cranial computed tomography scan revealed a hyperdense mass in the third ventricle with triventricular dilatation. Cerebral magnetic resonance imaging, magnetic resonance-angiography and conventional angiography identified this lesion as a partially thrombosed aneurysm of the anterior cerebral artery...
January 2013: Neurocirugía
https://www.readbyqxmd.com/read/23078619/botulinum-toxin-type-a-in-the-healing-of-chronic-lesion-following-bilateral-spasticity-of-gluteus-muscle
#19
Emanuele Cigna, Michele Maruccia, Benedetta Fanelli, Nicolò Scuderi
Use of botulinum toxin is expanding as the clinical studies demonstrate new potential therapeutic applications. In rehabilitation, botulinum toxin is above all used as adjunct therapy for the treatment of spasticity, but it may prove useful for other atypical clinical situations. A 17-year-old man had a sub-arachnoid haemorrhage following the rupture of cerebral aneurism. The patient presented gluteus maximus and medius bilaterally spasticity that produced a chronic lesion in the intergluteal cleft, a flexed wrist and a flexed elbow...
August 2014: International Wound Journal
https://www.readbyqxmd.com/read/22902782/a-dimensionally-heterogeneous-closed-loop-model-for-the-cardiovascular-system-and-its-applications
#20
P J Blanco, R A Feijóo
In the present work a computational model of the entire cardiovascular system is developed using heterogeneous mathematical representations. This model integrates different levels of detail for the blood circulation. The arterial tree is described by a one dimensional model in order to simulate the wave propagation phenomena that take place at the larger arterial vessels. The inflow and outflow locations of this 1D model are coupled with lumped parameter descriptions of the remainder part of the circulatory system, closing the loop...
May 2013: Medical Engineering & Physics
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