Valor de la ecoendoscopia transesofágica en el diagnóstico de localización en el hiperparatiroidismo primario / Oesophageal endoscopic ultrasound in the accurate location of primary hyperparathyroidism (HPT)

Objetivos. Considerar la utilidad de la ecoendoscopia trasesofágica en la localización del hiperparatiroidismo primario recidivado o persistente. Material y método Durante 7 años consecutivos, hemos intervenido a 352 pacientes con hiperparatiroidismo primario (HPP). Sistemáticamente se realiza gammagrafía paratiroidea con 99Tc-sestamibi preoperatorio y determinación intraoperatoria de paratirina. Sólo 5 (1,4%) pacientes han presentado problemas de localización: 3 por persistencia tras cirugía paratiroidea, 1 por recidiva y 1 por HPP con antecedente de hemitiroidectomía derecha. Antes de indicar una cervicotomía exploradora, se decide la realización de una ecoendoscopia trasesofágica para intentar una localización definitiva. Resultados La ecoendoscopia detecta una imagen clara de adenoma con localización precisa en 4 pacientes. Sólo en 1 paciente no se visualiza tumoración. Los 5 pacientes fueron intervenidos. Se confirmó la exactitud del diagnóstico en los 4 pacientes con visualización positiva. La exploración quirúrgica del quinto paciente resultó ser una paratireosis. Los 5 pacientes tuvieron un postoperatorio favorable, sin lesiones recurrenciales ni morbilidad asociada a la ecoendoscopia. Conclusiones La ecoendoscopia trasesofágica resulta muy útil en los hiperparatiroidismo que presenta dificultades para localizar la glándula patológica, especialmente en casos con alteración anatómica por cirugía previa. Así, ayuda a que el cirujano pueda explorar la zona sospechosa de forma más selectiva y más eficiente (AU)

Aim. Our aim was to estimate the usefulness of oesophageal endoscopic ultrasound in the accurate location of recurrent or persistent primary hyperparathyroidism (HPT).Material and methodA total of 352 patients with primary hyperparathyroidism were operated on over the last seven years. A preoperative parathyroid 99Tc- sestamibi gammagraphy and an intraoperative PTH determination were performed routinely. Only 5 patients (1.4%) had localization problems: three with persistent HPT after parathyroid extirpation, one recurrent HPT and one HPT after a right hemithyroidectomy. An oesophageal endoscopic ultrasound was carried out before any new exploratory neck surgery in order to find the definitive location. Results The endoscopic ultrasound showed a clear image of adenoma with an accurate location in four patients. No tumour was present in one patient. All five patients were operated on. The exact location was confirmed in the four patients with positive endoscopic ultrasound images. The fifth surgical exploration revealed a parathyreosis. All five patients had a favourable post-operative period, with no nerve lesions or morbidity associated with the endoscopic ultrasound. Conclusions Oesophageal endoscopic ultrasound is a very useful diagnostic tool in HPT patients with location problems, particularly in cases having anatomical changes due to previous surgery. It is a procedure that helps the surgeon to make a more selective and efficient exploration of parathyroid glands (AU)

[Oesophageal endoscopic ultrasound in the accurate location of primary hyperparathyroidism (HPT)]. / Valor de la ecoendoscopia transesofágica en el diagnóstico de localización en el hiperparatiroidismo primario.

AIM: Our aim was to estimate the usefulness of oesophageal endoscopic ultrasound in the accurate location of recurrent or persistent primary hyperparathyroidism (HPT). MATERIAL AND METHOD: A total of 352 patients with primary hyperparathyroidism were operated on over the last seven years. A preoperative parathyroid 99Tc- sestamibi gammagraphy and an intraoperative PTH determination were performed routinely. Only 5 patients (1.4%) had localization problems: three with persistent HPT after parathyroid extirpation, one recurrent HPT and one HPT after a right hemithyroidectomy. An oesophageal endoscopic ultrasound was carried out before any new exploratory neck surgery in order to find the definitive location. RESULTS: The endoscopic ultrasound showed a clear image of adenoma with an accurate location in four patients. No tumour was present in one patient. All five patients were operated on. The exact location was confirmed in the four patients with positive endoscopic ultrasound images. The fifth surgical exploration revealed a parathyreosis. All five patients had a favourable post-operative period, with no nerve lesions or morbidity associated with the endoscopic ultrasound. CONCLUSIONS: Oesophageal endoscopic ultrasound is a very useful diagnostic tool in HPT patients with location problems, particularly in cases having anatomical changes due to previous surgery. It is a procedure that helps the surgeon to make a more selective and efficient exploration of parathyroid glands.