[Deep neck space abscesses in children: 15 years of experience in a children's ENT referral unit]. / Abscesos cervicales profundos infantiles: experiencia de una unidad de ORL infantil de referencia durante 15 años.

INTRODUCTION: Deep neck space abscesses in infants are clinical entities of great importance due to their severity and possible complications. The aim of the study is to review our experience in the diagnostic and therapeutic management of deep neck space abscesses, and compare it with published literature. MATERIAL AND METHODS: Retrospective study was carried out on all patients diagnosed and treated for deep neck space abscesses over a 15-year period (2002-2016), including an analysis of the demographic, clinical, diagnostic and therapeutic characteristics. RESULTS: A total of 72 cases were diagnosed. An increase was observed in their incidence in recent years. The most frequent locations were peri-tonsillar (30.6%), followed by swollen lymph nodes (18.1%), parapharyngeal (16.7%), and retropharyngeal (16.7%). The least frequent were submandibular abscesses (12.5%) and parotid abscesses (5.6%). The distribution was different according to age (P<.001). The most frequent clinical symptom was fever (70.8%), followed by odynophagia (55.56%). The most used imaging tests were CT (50.7%) and ultrasound (28.2%). The treatment used was pharmacological in 11.1%, all of them abscessed swollen lymph nodes of less than 1.5cm in maximum size. The other 88.9% underwent surgery. There was recurrence in 12.5% of the cases. CONCLUSIONS: The performance of tonsillectomy and/or early cervicotomy in abscesses larger than 2cm or lesions of deep location decreases the number of serious complications and does not have recurrences. When using more conservative surgery, there were 12.5% of recurrences.

A predictive model for recurrence in patients with glottic cancer implemented in a mobile application for Android.

OBJECTIVES: The existing predictive models of laryngeal cancer recurrence present limitations for clinical practice. Therefore, we constructed, internally validated and implemented in a mobile application (Android) a new model based on a points system taking into account the internationally recommended statistical methodology. MATERIALS AND METHODS: This longitudinal prospective study included 189 patients with glottic cancer in 2004-2016 in a Spanish region. The main variable was time-to-recurrence, and its potential predictors were: age, gender, TNM classification, stage, smoking, alcohol consumption, and histology. A points system was developed to predict five-year risk of recurrence based on a Cox model. This was validated internally by bootstrapping, determining discrimination (C-statistics) and calibration (smooth curves). RESULTS: A total of 77 patients presented recurrence (40.7%) in a mean follow-up period of 3.4 ±â€¯3.0 years. The factors in the model were: age, lymph node stage, alcohol consumption and stage. Discrimination and calibration were satisfactory. CONCLUSION: A points system was developed to obtain the probability of recurrence of laryngeal glottic cancer in five years, using five clinical variables. Our system should be validated externally in other geographical areas.