Objective To present the results after balloon eustachian tuboplasty (BET) in patients with obstructive Eustachian tube dysfunction (OETD) grouped up into: baro-challenge, chronic serous otitis media and adhaesive otitis media. Methods A retrospective study was carried out on patients who underwent BET surgery. As outcome measures, otoscopy, tympanometry, Eustachian tube dysfunction questionnaire-7 (ETDQ-7) and ability to perform the Valsalva manoeuvre were recorded at baseline and at 3, 12 and 24 months after BET. A p value of 0.05 was used to indicate a statistically significant difference for all statistical tests. Results Three hundred and nineteen ears (248 patients) were included with a 3-month follow-up, 272 ears had a 12-month follow-up, and 171 ears had 24-month follow-up. Globally, a statistical significance improvement in all groups in all outcome measures was found. According to BET indication, in the baro-challenge group, there was no improvement in otoscopy, but ETDQ-7, Valsalva manoeuvre and tympanogram improved significantly. In the chronic serous otitis media group, otoscopy, ETDQ-7 and Valsalva manoeuvre were significantly improved in all the three timelines, including the avoidance of a new transtympanic tube after the BET in over 80% of cases. In the adhaesive otitis media group, Valsalva manoeuvre improved significantly, ETDQ-7 decreased and tympanogram improved but not significantly. Few mild complications were reported. Conclusions BET is an effective method for the treatment of OETD in all etiologic groups. The greatest benefit was observed in patients with baro-challenge. A long-term follow-up is recommended since the benefit seems to increase over time.
En la última década, Mazatlán ha tenido una dinámica de crecimiento económico sin precedente en la industria inmobiliaria, lo cual se ha traducido en aumentos significativos de la expansión urbana. Con lo anterior es de esperarse que se tenga un efecto indirecto en un incremento de los ingresos locales, particularmente en los impuestos que gravan la tierra, tal es el caso del impuesto sobre adquisición de inmuebles (ISAI). En ese sentido, el presente trabajo busca medir la correlación entre la expansión urbana de Mazatlán y el ISAI, la metodología que se emplea es de un enfoque cuantitativo a través de técnicas econométricas y construcción de índices para capturar el efecto de la expansión urbana para posteriormente correlacionarlos con el ISAI. Los datos recopilados son directamente de fuentes oficiales tales como el Sistema Municipal de Bases de Datos, H. Ayuntamiento de Mazatlán a través de la Dirección de Ingresos y el Consejo para el Desarrollo Económico de Sinaloa. Entre los resultados encontrados se puede mencionar que Mazatlán ha estado envuelto en un proceso de especulación de la tierra y de uso del suelo dirigido a grandes complejos y desarrollos de turismo residencial, segregando a la población local hacia las periferias de la ciudad. Por otro lado, a pesar de que el crecimiento urbano ha sido acelerado, los ingresos provenientes del impuesto sobre adquisición de inmuebles no muestran una correlación significativa
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