La audición en la enfermedad ósea de Paget / Hearing in Paget's disease of bone

Introducción y objetivos: La enfermedad ósea de Paget (EOP) puede cursar con hipoacusia. Con el objetivo de cuantificar, caracterizar y determinar los factores de riesgo de hipoacusia en un grupo de pacientes con EOP se realiza el presente estudio. Métodos: Se realizó un estudio observacional, transversal del tipo casos y controles que incluyó una cohorte de 76 sujetos con diagnóstico de EOP en el grupo caso y un grupo control de 134 sujetos. Se analiza la información clínica, demográfica y audiométrica de los sujetos incluidos. Resultados: El análisis comparativo entre el grupo de sujetos con EOP y el grupo control determinó que el grupo caso presentaba un umbral medio auditivo mayor (39,51dB) que el grupo control (37,28 dB) (p = 0,069) y que presentaba hipoacusia transmisiva con mayor frecuencia (22,76%) que el grupo control (12,05%) (p = 0,0062). El análisis de los factores de riesgo de hipoacusia determinó que la afectación craneal en la gammagrafía ósea, la edad y la HTA, entre otros, constituían factores de riesgo de mayor pérdida auditiva en la EOP. Conclusiones: Los sujetos con EOP presentaron una pérdida auditiva más severa y con mayor frecuencia de tipo transmisivo que el grupo control. Los sujetos con afectación de la calota craneal por EOP presentaron mayor pérdida auditiva que los sujetos sin afectación craneal. La afectación de la calota craneal por la EOP y la edad constituyeron factores de riesgo de hipoacusia

Introduction and objectives: Paget's disease of bone (PDB) may lead to hearing loss. The present study was conducted with the aim of measuring, characterizing and determining the risk factors for hearing loss in a group of subjects with PDB. Methods: An observational, transversal, case-control study was conducted, a cohort of 76 subjects diagnosed with PDB in the case group and a control group of 134 subjects were included. Clinical, demographic and audiometric data were analysed. Results: The comparative analysis between the subjects in the PDB group and the control group found that the case group showed higher hearing thresholds (39,51 dB) compared with the control group (37.28 dB) (P=.069) and presented a greater rate of conductive hearing loss (22.76%) than the control group (12.05%) (P=.0062). The study of risk factors for hearing loss found that skull involvement in bone scintigraphy, age and high blood pressure were risk factors for higher impairment in PDB. Conclusions: The subjects with PDB showed more profound and a higher proportion of conductive hearing loss than the control group. The patients with PDB and skull involvement presented a more severe hearing loss compared with the subjects without skull involvement. Skull involvement and age were found to be risk factors for hearing loss

Hearing in Paget's disease of bone. / La audición en la enfermedad ósea de Paget.

INTRODUCTION AND OBJECTIVES: Paget's disease of bone (PDB) may lead to hearing loss. The present study was conducted with the aim of measuring, characterizing and determining the risk factors for hearing loss in a group of subjects with PDB. METHODS: An observational, transversal, case-control study was conducted, a cohort of 76 subjects diagnosed with PDB in the case group and a control group of 134 subjects were included. Clinical, demographic and audiometric data were analysed. RESULTS: The comparative analysis between the subjects in the PDB group and the control group found that the case group showed higher hearing thresholds (39,51dB) compared with the control group (37.28dB) (P=.069) and presented a greater rate of conductive hearing loss (22.76%) than the control group (12.05%) (P=.0062). The study of risk factors for hearing loss found that skull involvement in bone scintigraphy, age and high blood pressure were risk factors for higher impairment in PDB. CONCLUSIONS: The subjects with PDB showed more profound and a higher proportion of conductive hearing loss than the control group. The patients with PDB and skull involvement presented a more severe hearing loss compared with the subjects without skull involvement. Skull involvement and age were found to be risk factors for hearing loss.

Nuestra experiencia con la monitorización del nervio facial en cirugía del schwannoma del vestibular bajo bloqueo neuromuscular parcial / Our experience with facial nerve monitoring in vestibular schwannoma surgery under partial neuromuscular blockade

Introducción y objetivos: La monitorización del nervio facial es fundamental en la preservación del nervio facial en la cirugía del schwannoma del nervio vestibular. Nuestro objetivo es analizar la utilidad de la monitorización facial bajo bloqueo neuromuscular parcial. Métodos: Análisis retrospectivo de 69 pacientes operados en un hospital de nivel terciario. Resultados: En el 100% de los casos se pudo realizar monitorización electromiográfica. Se obtuvo respuesta electromiográfica tras la escisión tumoral en el 75% de los casos. En 17 casos no hubo respuesta electromiográfica. En 15 hubo lesión de continuidad del nervio facial y en 2 hubo lesión pero se logró mantener la continuidad anatómica del nervio. La presencia de parálisis facial preoperatoria (29 vs. 7%; p = 0,0349), el mayor tamaño tumoral (88 vs. 38%; p = 0,0276) y una audición no funcional (88 vs. 51%; p = 0,0276) son factores significativamente más prevalentes en el grupo en que no se pudo obtener una respuesta electromiográfica. Conclusiones: La monitorización del nervio facial bajo bloqueo neuromuscular moderado es factible y segura en pacientes sin lesión facial preoperatoria. Los pacientes que obtienen respuesta electromiográfica tras la extirpación del tumor tienen mejor función facial en el postoperatorio y al año de seguimiento (AU)

Introduction and objectives: Facial nerve monitoring is fundamental in the preservation of the facial nerve in vestibular schwannoma surgery. Our objective was to analyse the usefulness of facial nerve monitoring under partial neuromuscular blockade. Methods: This was a retrospective analysis of 69 patients operated in a tertiary hospital. Results: We monitored 100% of the cases. In 75% of the cases, we could measure an electromyographic response after tumour resection. In 17 cases, there was an absence of electromyographic response. Fifteen of them had an anatomic lesion with loss of continuity of the facial nerve and, in 2 cases, there was a lesion with preservation of the nerve. Preoperative facial palsy (29% 7%; P=.0349), large tumour size (88 vs. 38%; P=.0276), and a non-functional audition (88 vs. 51%; P=.0276) were significantly related with an absence of electromyographic response. Conclusions: Facial nerve monitoring under neuromuscular blockade is possible and safe in patients without previous facial palsy. If the patient had an electromyographic response after tumour excision, they developed better facial function in the postoperative period and after a year of follow up (AU)

Our experience with facial nerve monitoring in vestibular schwannoma surgery under partial neuromuscular blockade.

INTRODUCTION AND OBJECTIVES: Facial nerve monitoring is fundamental in the preservation of the facial nerve in vestibular schwannoma surgery. Our objective was to analyse the usefulness of facial nerve monitoring under partial neuromuscular blockade. METHODS: This was a retrospective analysis of 69 patients operated in a tertiary hospital. RESULTS: We monitored 100% of the cases. In 75% of the cases, we could measure an electromyographic response after tumour resection. In 17 cases, there was an absence of electromyographic response. Fifteen of them had an anatomic lesion with loss of continuity of the facial nerve and, in 2 cases, there was a lesion with preservation of the nerve. Preoperative facial palsy (29% 7%; P=.0349), large tumour size (88 vs. 38%; P=.0276), and a non-functional audition (88 vs. 51%; P=.0276) were significantly related with an absence of electromyographic response. CONCLUSIONS: Facial nerve monitoring under neuromuscular blockade is possible and safe in patients without previous facial palsy. If the patient had an electromyographic response after tumour excision, they developed better facial function in the postoperative period and after a year of follow up.