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Background: Pediatric intracranial aneurysms (PIAs) are uncommon. Flow diverters (FDs) have shown to be effective on treatment of selected aneurysms. Methods: We describe 10 cases of PIAs treated with FDs at one medical center in Mexico, from April 2015 to April 2020. Results: Out of 230 patients treated with FDs, 10 (4.3%) were pediatric. Average age was 9.4 years old (R: 6-15). Two patients (20%) had subarachnoid hemorrhage, 3 had epilepsy (30%), 3 (30%) had clinical signs of cranial nerve compression, and 4 (40%) had only headache. Two patients were in 1a grade of Hunt and Kosnik scale. Out of the nonruptured aneurysms, 7 (70%) were in 15 points of Glasgow Coma Scale and 1 patient (10%) was in 13 points. Treatment was performed without complications; nevertheless, appropriate distal deployment was not achieved in one case. At discharge, nine patients had 5 points of Glasgow Outcome Scale. All patients underwent computed tomography angiography or digital subtraction angiography at 1, 3, 6, and 12 months, 2 patients (20%) had a 2-year follow-up, and 3 patients (30%) had a 3-year follow-up. According to Kamran grading scale, 9 patients (90%) were classified as Grade 4 and 1 patient (10%) as Grade 3. Conclusion: Even though it is a small series, as this is an uncommon disease, we may suggest that FDs are useful to treat properly selected PIAs. Our study has consecutive imaging assessment at least a year of follow-up in which aneurysm stable occlusion was observed in 90% of patients. [ABSTRACT FROM AUTHOR]

Copyright of Tecnología y Ciencias del Agua is the property of Instituto Mexicano de Tecnologia del Agua (IMTA) and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Copyright of Boletín de la Sociedad Geológica Mexicana is the property of Sociedad Geologica Mexicana and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

The application in the Mezquital Valley of the theoretical and methodological model applied by William T. Sanders in the basin of Mexico has allowed us to learn about some of the socio-cultural dynamics and the types of settlements that could have been established in different time periods in this region. In the pre-classic there were small settlements with Chupicuaro and Ticoman influence, but, apparently, the Mezquital was a region sparsely populated. The settlement of the north-west began during the Classic period by Xajay groups with possible Chupicuaro- Mixtlan connections, while groups with Teotihuacan affiliation, possibly entering from the southeast, founded towns in the vicinity of Tula. By the Epiclassic period the Teotihuacan sites were abandoned and autonomous systems linked with the Coyotlateclo sphere were developed, while the Xajay settlements remained occupied especially their civic-ceremonial centers. At this time, the settlement of the dry region beyond the Tula River was begun even though the valley does not appear to have been densely populated. With the rise of Tula there was an increase in the population of the valley zone that it occupied while in the rest of the region the population density decreased concentrating in specific core villages. In the Post-classic the region is dominated by the Triple Alliance and a strong population increase is observed throughout the valley through systems of disperse settlements and ceremonial centers on hilltops. The presence of the Otomi ethno-biological group in these dynamics is evident starting during the Epiclassic. [ABSTRACT FROM AUTHOR]

The history of Mexican archaeology has not deal their profesionalization with sufficient way. When the subject is treated, it has been from an official and government perspective, with a cumulative and progressive vision of knowledge. In this article a reflection is constricted on the formation of archeologist of the Escuela Nacional de Antropología e Historia in the first years of their foundation. The data of this years is compared with those of generations 1954, 1964, 1974, 1984 and 1994, taking as it bases some crucial indicators like the one of entrance-debit, terminal efficiency and other that today are used to evaluate superior institutions of education in Mexico. This perspective is complemented with some data on the historiography of the archaeological profession, to demonstrate that the nouns problems of Mexican archaeology had their origin in the profesionalization process, during its gestation, and that does not have been possible to break contact itself with those initial conditions. [ABSTRACT FROM AUTHOR]