BACKGROUND. Neck abscesses are defined as processes of infectious origin, which form a collection of purulent material through the deep planes of the neck, formed by fasciae. It may involve one or more spaces of the cervical region. In addition, they can be localized or disseminated and generate extremely serious and life-threatening complications.OBJECTIVE. To identify the prevalence of deep neck abscess in our tertiary hospital center.MATERIAL AND METHODS. A retrospective, analytical, observational, and cross-sectional study was carried out from January 2015 to May 2019. The data observed during the care of the patients with a diagnosis of deep neck abscess were collected from the clinical records. Descriptive statistics were performed, and the odd ratio was used for the risk probability analysis.RESULTS. A prevalence of 42 cases was found in 5 years, with 8.4 annual cases, average age of 45.2 years, male gender predominance in 53% of the cases. Descending mediastinitis was the most common complication and a mortality of 8.33% was presented. Type 2 diabetes mellitus and the involvement of 3 or more spaces represented a higher risk for complications compared to healthy patients who presented involvement of ≤2 spaces.CONCLUSION. In the Northwestern region of Mexico of IMSS beneficiaries, we have a prevalence of 42 cases in 5 years, 8.4 per year. The average age of our series is 45.2 years and there is no difference regarding the affection by gender. The involvement of two or more than three spaces represents the majority of cases. More than half of our cases underwent surgical drainage. Type 2 diabetes mellitus alone or accompanied with other comorbidities was the most common associated pathology; this same entity and the involvement of 3 or more spaces presented a higher risk of complications

BACKGROUND. Otosclerosis is a primary disease of the human otic capsule and stapes stage, being a frequent cause of conductive hearing loss in our country. The surgical treatment of choice is stapes surgery and prosthesis placement, performed in a conventional way, with a surgical microscope, for 30 years in our hospital. Recently, the option of performing stapes surgery endoscopically was introduced in our centre. OBJECTIVE. To evaluate the results in stapes surgery for otosclerosis between the conventional microscopic versus endoscopic procedure. MATERIAL AND METHODS. An observational, analytical and retrospective study on patients undergoing stapes surgery with microscopic and endoscopic technique was conducted. Data such as age, sex, state of origin, affected ear, as well as the technique used, duration of surgical intervention, hearing gain and postsurgical complications were taken. Data were taken from the records of patients admitted to the hospital. Descriptive statistics, Mann-Whitney U and Pearson’s Ji2, were used, considering a value of p≤ 0.05 as significant. RESULTS. No significant differences were found in surgical time or postoperative hearing between the two surgical techniques. The female sex was the most intervened. There was no significant difference between the post-surgical complications of both groups. CONCLUSION. Both procedures appear to be effective, with similar risks and postoperative results for the surgical treatment of otosclerosis.

Las lesiones de la región nasofrontal en los niños son un reto diagnóstico debido a surareza, y su potencial comunicación con el sistema nervioso central también aumentasu complicacioneDentro de las principales entidades de esta región se encuentranlos quistes dermoides, los gliomas nasales y losencefaloceles. Un abordaje diagnósticoy terapéutico inapropiado podría generar desde simples recurrencias hastafistulas e infecciones en el sistema nervioso central, que podríancontribuir a mayorescomplicaciones o, incluso, poner en riesgo la vida de los pacientes.

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BACKGROUND. Mucormycosis is an emerging angioinvasive, potentially fatal infection caused by the ubiquitous filamentous fungi of the order Mucorales of the class Phycomycetes. They occur particularly in metabolically decompensated diabetic patients. OBJECTIVE. To evaluate the factors associated with survival in a group of diabetic patients with rhino-orbito-cerebral mucormycosis. MATERIAL AND METHODS. A case-control study of a series of cases from January 2013 to May 2020 was designed. Patients with diabetes mellitus and a diagnosis of rhino-orbito-cerebral mucormycosis were included. The clinical findings were considered, as well as age, gender, laboratory and radiological results, and mortality. For the statistical analysis, we used descriptive statistics, Mann Whitney U test. We considered a p-value equal to or less than 0.05 to indicate a statistically significant association or difference. Likewise, the odds ratio was used to determine the relative risk. RESULTS. 19 cases were included, with an average age of 60.8 years and female gender predominance. In 100% of the cases, nonseptate hyphae were identified in histopathological studies. We had a mortality of 7 (36.8%), where the rhino-orbital complications were the most frequent. The findings of CRP ≤23.1mm/L, an absolute neutrophil count ≥13.2 x1000 /µl and absence of bone erosion in the simple tomography, the rhino-orbital stage, could be related to greater survival. CONCLUSION. Our series presented mortality close to 40%. Age <64 years, CRP ≤23.1mm/L, absolute neutrophil count ≥13.2 x1000 /µl and absence of bone erosion in the simple tomography, rhino-orbital stage were associated with a better survival in our series.