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https://www.readbyqxmd.com/read/28602925/supracerebellar-infratentorial-paramedian-approach-in-helsinki-neurosurgery-cornerstones-of-a-safe-and-effective-route-to-the-pineal-region
#1
Joham Choque-Velasquez, Roberto Colasanti, Julio C Resendiz-Nieves, Behnam Rezai Jahromi, Danil A Kozyrev, Peeraphong Thiarawat, Juha Hernesniemi
OBJECTIVE: The supracerebellar infratentorial (SCIT) paramedian approach in sitting position represents one of the most used surgical route for dealing with pineal region lesions. Purpose of our study is to determine the cornerstones to perform this approach in a simple, safe and effective way, so that it could be easily reproduced in other neurosurgical centers, particularly in those with modest resources. METHODS: We reviewed and analyzed the surgical videos of twenty-four pineal region lesions that were operated on through a SCIT approach between June 2012 and October 2015...
June 8, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28540128/three-distal-anterior-cerebral-artery-aneurysms-in-the-same-branch-associated-with-five-additional-intracranial-aneurysms
#2
Danil A Kozyrev, Behnam Rezai Jahromi, Peeraphong Thiarawat, Joham Choque-Velasquez, Christopher Ludtka, Felix Goehre, Juha Hernesniemi
BACKGROUND: Multiple distal anterior cerebral artery (DACA) aneurysms appear as rare findings. Simultaneous treatment of such lesions can be particularly challenging. A report of three aneurysms on the same parent artery has not been reported before. We report a case of three DACA aneurysms treated within one microsurgical operation in a patient with eight aneurysms. CASE DESCRIPTION: A 62-year-old woman incidentally presented with multiple various size saccular aneurysms, including tree on the left DACA...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28489217/intra-aortic-balloon-pump-in-cardiogenic-shock-state-of-the-art
#3
Petronio Generoso Thomaz, Leonel Adelino Moura, Giovana Muramoto, Renato Samy Assad
The clinical definition of cardiogenic shock is that of a low cardiac output and evidence of tissue hypoxia in the presence of adequate blood volume. Cardiogenic shock is the main cause of death related to acute myocardial infarction (AMI), with a mortality rate of 45-70% in the absence of aggressive and highly specialized technical care. The intra-aortic balloon pump (IABP) is one of the most widely used mechanical assisting devices. During the last two decades, about 42% of patients with AMI who evolved with cardiogenic shock received mechanical circulatory assistance with IABP...
January 2017: Revista do Colégio Brasileiro de Cirurgiões
https://www.readbyqxmd.com/read/28458947/suboccipital-osteoblastoma-microsurgical-resection-of-a-rare-entity
#4
Joham Choque-Velasquez, Roberto Colasanti, Anna Piippo, Mika Niemelä
BACKGROUND: Osteoblastomas are rare lesions comprising 1% of all bone tumors. The occipital bone is one of the rarest affected bone, with only 11 cases reported during the last 40 years. CASE DESCRIPTION: Here, we describe the clinical presentation and the radiological features of a suboccipital osteoblastoma that was successfully resected in a 30-year-old man. A short video shows the microsurgical removal of the lesion. There was no recurrence during a 12-month follow-up...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28419295/anatomic-features-of-paraclinoid-aneurysms-computed-tomography-angiography-study-of-144-aneurysms-in-136-consecutive-patients
#5
Ahmadreza Rafiei, Ahmad Hafez, Hanna Lehto, Behnam Rezai Jahromi, Juha Hernesniemi, Riku Kivisaari, Bruno Canato, Joham Choque, Sharafeddin Fransua, Hugo Andrade-Barazarte, Roberto Colasanti
BACKGROUND: Paraclinoid aneurysms are among the most challenging aneurysms to treat. Computed tomography (CT) angiography helps in evaluating the radiological characteristics of these aneurysms next to bony structures. OBJECTIVE: To present the CT angiography characteristics of paraclinoid aneurysms in order to better understand such pathology. METHODS: The study examined CT angiography-based anatomical characteristics obtained retrospectively from 136 patients with 144 paraclinoid aneurysms selected from single-defined catchment populations in Finland...
April 17, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28346568/impact-of-3-monthly-vitamin-d-supplementation-plus-exercise-on-survival-after-surgery-for-osteoporotic-hip-fracture-in-adult-patients-over-50-years-a-pragmatic-randomized-partially-blinded-controlled-trial
#6
A Laiz, J Malouf, A Marin, V Longobardi, J de Caso, J Farrerons, J Casademont
OBJECTIVE: To determine whether 3-monthly supplementation of an oral vitamin D widely used in Spain (calcifediol) plus daily exercise could influence survival at one and four years after surgery for osteoporotic hip fracture. DESIGN: A pragmatic, randomized, partially single-blind placebo-controlled study. SETTING: Patients admitted to a tertiary university hospital for acute hip fracture. PARTICIPANTS: 675 healthy adult patients undergoing surgery for osteoporotic hip fracture were recruited from January 2004 to December 2007...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/28283870/-dirty-coagulation-technique-as-an-alternative-to-microclips-for-control-of-bleeding-from-deep-feeders-during-brain-arteriovenous-malformation-surgery
#7
Danil A Kozyrev, Peeraphong Thiarawat, Behnam Rezai Jahromi, Patcharin Intarakhao, Joham Choque-Velasquez, Ferzat Hijazy, Mario K Teo, Juha Hernesniemi
BACKGROUND: Meticulous haemostasis is one of the most important factors during microneurosurgical resection of brain arteriovenous malformation (AVM). Controlling major arterial feeders and draining veins with clips and bipolar coagulation are well-established techniques, while managing with bleeding from deep tiny vessels still proves to be challenging. This technical note describes a technique used by the senior author in AVM surgery for last 20 years in dealing with the issue highlighted...
May 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28217397/a5-segment-aneurysm-of-the-anterior-cerebral-artery-imbedded-into-the-body-of-the-corpus-callosum-a-case-report
#8
Fransua Sharafeddin, Ahmad Hafez, Martin Lehecka, Rahul Raj, Roberto Colasanti, Ahmadreza Rafiei, Joham Choque, Behnam R Jahromi, Mika Niemelä, Juha Hernesniemi
BACKGROUND: The A5 segment aneurysms of the anterior cerebral artery are rare, approximately 0.5% of all intracranial aneurysms. They are small with a wide base located in the midline, with the domes mostly projecting upward or backward. CASE DESCRIPTION: The authors describe a unique case of A5 segment aneurysm, with the dome embedded into the body of the corpus callosum. This 41-year-old female was admitted to the neurology department for possible multiple sclerosis investigation...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28213191/microneurosurgical-management-of-posterior-communicating-artery-aneurysm-a-contemporary-series-from-helsinki
#9
Peeraphong Thiarawat, Behnam Rezai Jahromi, Danil A Kozyrev, Patcharin Intarakhao, Mario K Teo, Joham Choque-Velasquez, Juha Hernesniemi
OBJECTIVE: The objectives of this study were to analyze microsurgical techniques and to determine correlations between microsurgical techniques and the radiographic findings in the microneurosurgical treatment of posterior communicating artery aneurysms (PCoAAs). METHODS: We retrospectively analyzed radiographic findings and videos of surgeries in 64 patients with PCoAAs who underwent microsurgical clipping by the senior author from August 2010 to 2014. RESULTS: From 64 aneurysms, 30 (47%) had acute subarachnoid hemorrhage (SAH) that necessitated lamina terminalis fenestration (odds ratio [OR], 67...
May 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28137542/developing-the-first-highly-specialized-neurosurgical-center-of-excellence-in-trujillo-peru-work-in-progress-results-of-the-first-four-months
#10
Joham Choque-Velasquez, Roberto Colasanti, Virginia Baffigo-Torre, Luisa Estela Sacieta-Carbajo, Jacqueline Olivari-Heredia, Yolanda Falcon-Lizaraso, Juan Huber Mallma-Torres, Humberto Elera-Florez, Juha Hernesniemi
BACKGROUND: Economic, cultural, and geographical reasons usually limit the access to specialized health centers in developing countries, especially in rural areas. Peruvian health system indicators still highlight significant unmet clinical need for neurosurgical patients. Our project is to develop the first highly specialized neurosurgical center in the EsSalud hospital of Trujillo, with the goal to improve the treatment of neurosurgical diseases in that region, thus optimizing their outcomes while decreasing expensive and risky patients transfer to the neurosurgical departments in the capital district...
June 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28100304/iron-responsive-like-elements-in-the-parasite-entamoeba-histolytica
#11
Liliana Soto-Castro, Laura Yuliana Plata-Guzman, Elisa Elvira Figueroa-Angulo, Jaeson Calla-Choque, Magda Reyes-Lopez, Mireya DE LA Garza, Nidia Leon-Sicairos, Jose Antonio Garzon-Tiznado, Rossana Arroyo, Claudia Leon-Sicairos
In Entamoeba histolytica, iron modulates virulence and gene expression via unknown regulatory mechanisms. The existence of a posttranscriptional iron regulatory system parallel to the IRE/IRP (Iron-Responsive Element/Iron Regulatory Protein) system in the protozoan Trichomonas vaginalis has recently been reported. Due to their evolutionary closeness and the importance of iron for growth and virulence in these protozoa, we hypothesized the existence of an IRE/IRP-like mechanism in E. histolytica. To determine the presence of IRE-like elements in some mRNAs from this parasite, we performed in silico analyses of the 5'- and 3'-UTRs of mRNAs encoding virulence factors and cytoskeleton, ribosomal, and metabolism proteins...
January 18, 2017: Microbiology
https://www.readbyqxmd.com/read/27886069/co-creating-the-cities-of-the-future
#12
Verónica Gutiérrez, Evangelos Theodoridis, Georgios Mylonas, Fengrui Shi, Usman Adeel, Luis Diez, Dimitrios Amaxilatis, Johnny Choque, Guillem Camprodom, Julie McCann, Luis Muñoz
In recent years, the evolution of urban environments, jointly with the progress of the Information and Communication sector, have enabled the rapid adoption of new solutions that contribute to the growth in popularity of Smart Cities. Currently, the majority of the world population lives in cities encouraging different stakeholders within these innovative ecosystems to seek new solutions guaranteeing the sustainability and efficiency of such complex environments. In this work, it is discussed how the experimentation with IoT technologies and other data sources form the cities can be utilized to co-create in the OrganiCity project, where key actors like citizens, researchers and other stakeholders shape smart city services and applications in a collaborative fashion...
November 23, 2016: Sensors
https://www.readbyqxmd.com/read/27878222/microbiological-evaluation-of-the-steam-sterilization-of-assembled-laparoscopic-instruments
#13
Tamara Carolina de Camargo, Kazuko Uchikawa Graziano, Alda Graciele Claudio Dos Santos Almeida, Karina Suzuki, Cely Barreto da Silva, Flávia Morais Gomes Pinto
Objective: assess the safety of steam sterilization of assembled laparoscopic instruments with challenge contamination. Method: a laboratory experimental study, using as test samples trocars and laparoscopic graspers. Geobacillus stearothermophillus ATCC-7953 was used, with a microbial population of 106UFC/Filter paper substrate, removed from the biological indicator. Three of them were introduced into each instrument at the time of assembly, and sterilized at pressurized saturated steam, 134oC for 5 minutes...
November 21, 2016: Revista Latino-americana de Enfermagem
https://www.readbyqxmd.com/read/27777548/crush-syndrome-chez-l%C3%A2-adulte-et-problematique-de-sa-prise-en-charge-a-la-phase-aigu%C3%A3
#14
P F Hemou, H D Sama, P Tchétikè, T Potkar
Le crush syndrome se définit comme l'ensemble des manifestations locales et générales secondaires à une rhabdomyolyse traumatique avec ischémie de grosses masses musculaires par compression prolongée, à l'origine d'un syndrome compartimental ou syndrome des loges. Rarement isolé, il peut passer inaperçu dans les 24 à 48 premières heures de la phase aiguë d'un traumatisme sévère quand les principales préoccupations médicales sont la sauvegarde des fonctions vitales. La souffrance musculaire liée au syndrome compartimental entraîne la libération de myoglobine dans la circulation générale...
December 31, 2015: Annals of Burns and Fire Disasters
https://www.readbyqxmd.com/read/27777165/seven-cerebral-aneurysms-a-challenging-case-from-the-andean-slopes-managed-with-1-stage-surgery
#15
Joham Choque-Velasquez, Roberto Colasanti, George Fotakopoulos, Humberto Elera-Florez, Juha Hernesniemi
BACKGROUND: Treatment of multiple intracranial aneurysms is particularly demanding and even more so in a developing country where access to specialized centers may be prevented by different factors. METHODS: Single-stage surgical treatment of 7 cerebral aneurysms was performed in a 58-year-old woman from the northern Peruvian Andes. RESULTS: All 7 aneurysms were successfully and safely clipped through 2 lateral supraorbital craniotomies. The double clip technique was used in 3 aneurysms to prevent any residual aneurysmal neck...
January 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27729299/-squeeze-maneuver-assisted-by-indocyanine-green-videoangiography-simple-technique-to-resuscitate-partially-occluded-bridging-veins-during-microneurosurgical-operations
#16
Joham Choque-Velasquez, Roberto Colasanti, Behnam Rezai Jahromi, Juha Hernesniemi
OBJECTIVE: The preservation of normal peri/intralesional bridging veins is extremely important in every microneurosurgical operation. The purpose of our study was to describe the "squeeze maneuver" assisted by indocyanine green videoangiography (ICGV), a simple technique to "resuscitate" partially occluded bridging veins during microneurosurgical operations. METHODS: When a bridging vein is inadvertently stretched up to its collapse during microneurosurgical procedures, a precise identification of the partially occluded zone is carried out under high magnification (10-15×), as well as with the aid of the ICGV...
January 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27579543/fondaparinux-versus-enoxaparin-which-is-the-best-anticoagulant-for-acute-coronary-syndrome-brazilian-registry-data
#17
Alexandre de Matos Soeiro, Pedro Gabriel Melo de Barros E Silva, Eduardo Alberto de Castro Roque, Aline Siqueira Bossa, Maria Cristina César, Sheila Aparecida Simões, Mariana Yumi Okada, Tatiana de Carvalho Andreucci Torres Leal, Fátima Cristina Monteiro Pedroti, Múcio Tavares de Oliveira
Background: Recent studies have shown fondaparinux's superiority over enoxaparin in patients with non-ST elevation acute coronary syndrome (ACS), especially in relation to bleeding reduction. The description of this finding in a Brazilian registry has not yet been documented. Objective: To compare fondaparinux versus enoxaparin in in-hospital prognosis of non-ST elevation ACS. Methods: Multicenter retrospective observational study. A total of 2,282 patients were included (335 in the fondaparinux group, and 1,947 in the enoxaparin group) between May 2010 and May 2015...
September 2016: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/27547346/examining-variation-in-the-leaf-mass-per-area-of-dominant-species-across-two-contrasting-tropical-gradients-in-light-of-community-assembly
#18
Margot Neyret, Lisa Patrick Bentley, Imma Oliveras, Beatriz S Marimon, Ben Hur Marimon-Junior, Edmar Almeida de Oliveira, Fábio Barbosa Passos, Rosa Castro Ccoscco, Josias Dos Santos, Simone Matias Reis, Paulo S Morandi, Gloria Rayme Paucar, Arturo Robles Cáceres, Yolvi Valdez Tejeira, Yovana Yllanes Choque, Norma Salinas, Alexander Shenkin, Gregory P Asner, Sandra Díaz, Brian J Enquist, Yadvinder Malhi
Understanding variation in key functional traits across gradients in high diversity systems and the ecology of community changes along gradients in these systems is crucial in light of conservation and climate change. We examined inter- and intraspecific variation in leaf mass per area (LMA) of sun and shade leaves along a 3330-m elevation gradient in Peru, and in sun leaves across a forest-savanna vegetation gradient in Brazil. We also compared LMA variance ratios (T-statistics metrics) to null models to explore internal (i...
August 2016: Ecology and Evolution
https://www.readbyqxmd.com/read/27517042/corrigendum-to-%C3%AE-actinin-tvactn3-of-trichomonas-vaginalis-is-an-rna-binding-protein-that-could-participate-in-its-posttranscriptional-iron-regulatory-mechanism
#19
Jaeson Santos Calla-Choque, Elisa Elvira Figueroa-Angulo, Leticia Ávila-González, Rossana Arroyo
[This corrects the article DOI: 10.1155/2014/424767.].
2016: BioMed Research International
https://www.readbyqxmd.com/read/27508918/factors-associated-with-mortality-in-patients-undergoing-coronary-artery-bypass-grafting
#20
Cintia Koerich, Gabriela Marcellino de Melo Lanzoni, Alacoque Lorenzini Erdmann
OBJECTIVE: to investigate the factors associated with mortality in patients undergoing coronary artery bypass grafting in a cardiovascular referral hospital in Santa Catarina. METHOD: quantitative, exploratory, descriptive and retrospective study. The medical records of 1447 patients, from 2005 to 2013, were analyzed for statistically related variables, these being: profile, hospitalization diagnosis, risk factors for coronary artery disease, complications recorded during the hospitalization, length of hospitalization and cause of death...
August 8, 2016: Revista Latino-americana de Enfermagem
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