Multidisciplinary radio-guided surgery team: Alternative to change the current paradigm.

INTRODUCTION: Given the constant increase in the healthcare demand for examinations related to radio-guided surgery (RGS), our hospital adopted new professional profiles in the RGS team, in order to partially reduce the time spent by nuclear medicine physicians on this task. AIM: To analyze the process of incorporating the profiles of Diagnostic Imaging Technician (DIT) and Sentinel Node Referent Nurse (SNRN), evaluating their deployment in the procedures linked to the technique. MATERIAL AND METHODS: Analysis of RGS activity during the period 2018-2022, focusing on pre-surgical and surgical procedures related to breast cancer (BC) and malignant melanoma (MM), as they are those pathologies on which the transfer of care competencies was concentrated. Chronological evolution of the competencies assumed by the different profiles during their integration into the RGS team. RESULTS: RGS's healthcare activity during the analyzed period experienced an increase of 109%. BC and MM were the pathologies that accounted for by far the greatest demand for care. The transfer of competencies in these two pathologies occurred in a progressive and staggered manner, with 74% (460/622) of the administration phase being carried out by the SNRN and 64% (333/519) of the surgeries by the DIT in 2022. CONCLUSIONS: The creation of a multidisciplinary RGS team that includes different professional profiles (nuclear medicine physician [MN], ERGC and TSID) is an effective strategy to respond to the increase in the complexity and number of all procedures related to RGS.

Perfil enfermera referente de ganglio centinela: descripción, validación y aplicación en la práctica asistencial / Sentinal lymph node reference nurse model: description, validation, and application in clinical practice

Introducción En 2019 se genera la oportunidad de integrar un enfermero en el equipo de cirugía radioguiada (CRG), adaptando el modelo de enfermera referente a las exploraciones de ganglio centinela (GC). Objetivos Describir el procedimiento adoptado para definir el perfil enfermera referente de ganglio centinela (ERGC), validar su aplicación práctica y establecer su implementación asistencial. Material y métodos Metodología de análisis y mejora continua en gestión de procesos (ciclo PDCA): definición y planificación de las funciones de ERGC en el protocolo de cáncer de mama, realización prueba piloto con 20 pacientes y análisis de los datos de cara a validar el circuito y establecer su implementación asistencial. Resultados Se elaboraron flujos del procedimiento, integrando la figura de ERGC. En la prueba piloto, un 15% de las mujeres presentaron un resultado positivo de ansiedad frente a un 60% de valoración subjetiva positiva de ansiedad. Tras las intervenciones enfermeras realizadas, se obtuvo una reducción del 58,3% en valoración subjetiva de ansiedad, un 100% de conocimiento de la prueba y una valoración del dolor en la administración del radiotrazador aceptable en las pacientes. En el nivel de calidad técnica, 8/10 ítems valorados consiguieron el objetivo previamente establecido por el equipo de CRG. Conclusiones La creciente complejidad de la técnica de biopsia de GC ha creado la oportunidad de implementar cuidados enfermeros en el procedimiento de localización prequirúrgica del GC. El perfil ERGC es el idóneo para llevarlo a cabo y ha conllevado mejoras objetivas en los diagnósticos enfermeros e ítems evaluados (AU)

Introduction In 2019 the opportunity to add a nurse within the radioguided surgery (RGS) team was generated. The referent nurse model was adapted to, the sentinel node (SN) preoperative approaches. Objectives To describe the process performed to define the sentinel node referentnurse (SNRN) profile, to validate its practical application and to establish its clinical implementation. Material and methods Methodology of analysis and continuous improvement in the management of processes (cycle PDCA): Definition and planning of the SNRN functions in the breast cancer protocol, performance of a pilot test with 20 patients and analysis of the data in order to validate the circuit and establish its final clinical implementation. Results New procedure flows-charts were elaborated, adding the figure of the SNRN, its function and nursing interventions during the process. In the pilot test a 58.3% reduction in subjective anxiety, a 75% decrease of the overall anxiety level, a 100% knowledge of the test and an acceptable patient perception of pain's level during the radiotracer administration were obtained. Regarding technical quality, 8/10 items assessed reached the level previously established by the RGS team. Conclusions The increasing complexity of the SN biopsy technique has created the opportunity to implement nursing care in the presurgical SN localization process. The profile of the SNRN is ideal for carrying it out and has led to improvements in the nursing diagnoses and assessed items (AU)

Semillas radiactivas y no radiactivas como método de localización quirúrgica de las lesiones mamarias no palpables / Radioactive and non-radioactive seeds as surgical localization method of non-palpable breast lesions

El diagnóstico cada vez más precoz de la enfermedad mamaria y el uso más extendido del tratamiento sistémico primario conlleva en la práctica clínica un creciente número de cirugías de lesiones mamarias no palpables (LMNP).La cirugía conservadora de la mama requiere a menudo la utilización de un procedimiento de localización preoperatorio guiado por imagen, en el cual se coloca un dispositivo en el interior de la lesión a extirpar para guiar al cirujano durante la cirugía. Se trata de pacientes con tumores pequeños, no palpables, detectados en la mamografía de cribado poblacional, casos con significativa reducción de la lesión tras la quimioterapia neoadyuvante e incluso en ocasiones es necesario el marcaje de adenopatías axilares previo al tratamiento sistémico.Durante décadas, la localización con arpón ha sido el estándar para el marcaje preoperatorio en cáncer de mama. Debido al componente externo del arpón, se debe extremar el cuidado de no alterar su posición antes de la cirugía, por lo que se coloca horas antes de la cirugía y conlleva una compleja y limitada flexibilidad de programación quirúrgica.La ecografía intraoperatoria subsana este inconveniente, pero tiene la limitación de que únicamente va a poder realizarse en aquellas LMNP que tienen traducción ecográfica. La técnica Radioguided Ocult Lesión Localization (ROLL), si bien es otra alternativa adoptada por muchas instituciones, no está exenta de complicaciones, entre las que destaca la posibilidad de difusión del radiotrazador hacia el tejido sano.Para solventar estos inconvenientes, más recientemente, se comenzaron a utilizar las semillas radiactivas de 125I. Posteriormente, gracias a los avances tecnológicos, han surgido alternativas de semillas no radiactivas como los reflectores de radar, las semillas magnéticas y los marcadores por radiofrecuencia. Estos dispositivos de localización se pueden colocar días antes de la cirugía

The increasingly early diagnosis of breast disease and the more widespread use of primary systemic therapy leads to an increasing number of surgeries for non-palpable breast lesions (NPL) in clinical practice.Breast-conserving surgery often requires the use of an image-guided preoperative localization procedure, in which a device is placed within the lesion to be removed to guide the surgeon during surgery. These are patients with small, non-palpable tumors detected in the population screening mammogram, cases with significant reduction of the lesion after neoadjuvant chemotherapy and sometimes it is even necessary to mark axillary lymphadenopathies prior to systemic treatment.For decades, wire localization has been the standard for preoperative marking in breast cancer. Due to the external component of this device, extreme care must be taken not to alter its position before surgery, which is why it is placed hours before surgery and entails complex and limited flexibility in surgical programming.Intraoperative ultrasound improves this drawback but has the limitation that it can only be performed in those NPLs that have ultrasound translation. The Radioguided Occult Lesion Localization (ROLL) technique, although it is another alternative adopted by many institutions, is not without complications, among which the possibility of diffusion of the radiotracer into healthy tissue stands out.To overcome these problems, more recently, 125I radioactive seeds began to be used. Subsequently, thanks to technological advances, non-radioactive seed alternatives such as radar reflectors, magnetic seeds and radio frequency markers have emerged. These locating devices can be placed days before surgery, avoiding wire-related problems and complications. They are introduced percutaneously and identified intraoperatively using a detector device.There is no perfect intraoperative localization method for NPL excision, but fortunately, we have multiple techniques

Sentinel node referent nurse: Description, validation and application in clinical practice.

INTRODUCTION: In 2019 the opportunity to add a nurse within the radioguided surgery (RGS) team was generated. The referent nurse model was adapted to, the sentinel node (SN) preoperative approaches. OBJECTIVES: To describe the process performed to define the sentinel node referent nurse (SNRN) profile, to validate its practical application and to establish its clinical implementation. MATERIAL AND METHODS: Methodology of analysis and continuous improvement in the management of processes (cycle PDCA): definition and planning of the SNRN functions in the breast cancer protocol, performance of a pilot test with 20 patients and analysis of the data in order to validate the circuit and establish its final clinical implementation. RESULTS: New procedure flows-charts were elaborated, adding the figure of the SNRN, its function and nursing interventions during the process. In the pilot test a 58.3% reduction in subjective anxiety, a 75% decrease of the overall anxiety level, a 100% knowledge of the test and an acceptable patient perception of pain's level during the radiotracer administration were obtained. Regarding technical quality, 8/10 items assessed reached the level previously established by the RGS team. CONCLUSIONS: The increasing complexity of the SN biopsy technique has created the opportunity to implement nursing care in the presurgical SN localization process. The profile of the SNRN is ideal for carrying it out and has led to improvements in the nursing diagnoses and assessed items.

Radioactive and non-radioactive seeds as surgical localization method of non-palpable breast lesions.

The increasingly early diagnosis of breast disease and the more widespread use of primary systemic therapy leads to an increasing number of surgeries for non-palpable breast lesions (NPL) in clinical practice. Breast-conserving surgery often requires the use of an image-guided preoperative localization procedure, in which a device is placed within the lesion to be removed to guide the surgeon during surgery. These are patients with small, non-palpable tumors detected in the population screening mammogram, cases with significant reduction of the lesion after neoadjuvant chemotherapy and sometimes it is even necessary to mark axillary lymphadenopathies prior to systemic treatment. For decades, wire localization has been the standard for preoperative marking in breast cancer. Due to the external component of this device, extreme care must be taken not to alter its position before surgery, which is why it is placed hours before surgery and entails complex and limited flexibility in surgical programming. Intraoperative ultrasound improves this drawback but has the limitation that it can only be performed in those NPLs that have ultrasound translation. The Radioguided Occult Lesion Localization (ROLL) technique, although it is another alternative adopted by many institutions, is not without complications, among which the possibility of diffusion of the radiotracer into healthy tissue stands out. To overcome these problems, more recently, 125I radioactive seeds began to be used. Subsequently, thanks to technological advances, non-radioactive seed alternatives such as radar reflectors, magnetic seeds and radio frequency markers have emerged. These locating devices can be placed days before surgery, avoiding wire-related problems and complications. They are introduced percutaneously and identified intraoperatively using a detector device. There is no perfect intraoperative localization method for NPL excision, but fortunately, we have multiple techniques with different advantages and disadvantages that must be assessed and adapted to the center's own resources, the type of surgery, and always to the benefit of the patient.

PET/TC 11C-colina detecta múltiples pequeñas metástasis peritoneales en un paciente con cáncer de próstata / 11C-Choline PET/CT detects multiple small peritoneal metastasis in a prostate cancer patient

No disponible

Detección del foco epileptógeno mediante dos nuevos métodos de procesamiento de imágenes SPECT y PET cerebral: PET-Analysis y PISCOM / Detection of epileptogenic focus with two new methods of processing of SPECT and PET cerebral images: PET-Analysis and PISCOM

La neuroimagen funcional de la PET con 18F-FDG y la SPECT de perfusión son exploraciones cada vez más imprescindibles para la localización prequirúrgica del foco epileptógeno. Presentamos el caso de un paciente varón de 18 años con crisis epilépticas refractarias a tratamiento antiepiléptico. La RM mostró displasia en córtex insular posterior derecho. El SISCOM detectó un aumento focal de captación en cíngulo frontoparietal izquierdo y en la PET-FDG se visualizaba una distribución normal del radiotrazador. Se realizó resección insular posterior derecha, cuyo resultado anatomopatológico fue ganglioglioma grado I de la clasificación de la OMS. El paciente mostró una evolución posquirúrgica favorable, encontrándose libre de crisis desde hace 5 años (Engel I). Un análisis retrospectivo de este caso con 2 nuevos métodos de procesamiento de imágenes: PET-Analysis y PISCOM, permitió localizar correctamente el foco epileptógeno en córtex insular posterior derecho

Functional neuroimaging with positron emission tomography with 18F-fluorodeoxyglucose (PET-18F-FDG) and perfusion single photon emission computerized tomography (SPECT) are increasingly more essential for presurgically locating the epileptogenic focus. We present the case of an 18-year-old male with epileptic seizures refractory to antiepileptic treatment. Magnetic resonance (MR) showed dysplasia in the posterior right insular cortex. Subtraction of ictal SPECT co-registered to MR (SICOM) detected a focal increase of uptake in the left fronto-parietal cingulate and PET-FDG showed normal distribution of the radiotracer. The posterior right insula was resected with histopathological results of grade I ganglioglioma according to the World Health Organization classification. The patient made favourable post-surgical progress, and remains seizure-free after 5 years (Engel I). Retrospective analysis of this case with two new image processing methods (PET analysis and PET interictal subtracted ictal SPECT coregistered with MR [PISCOM]) correctly localized the epileptogenic focus in the posterior right insular cortex

Detection of epileptogenic focus with two new methods of processing of SPECT and PET cerebral images: PET-Analysis and PISCOM. / Detección del foco epileptógeno mediante dos nuevos métodos de procesamiento de imágenes SPECT y PET cerebral: PET-Analysis y PISCOM.

Functional neuroimaging with positron emission tomography with 18F-fluorodeoxyglucose (PET-18F-FDG) and perfusion single photon emission computerized tomography (SPECT) are increasingly more essential for presurgically locating the epileptogenic focus. We present the case of an 18-year-old male with epileptic seizures refractory to antiepileptic treatment. Magnetic resonance (MR) showed dysplasia in the posterior right insular cortex. Subtraction of ictal SPECT co-registered to MR (SICOM) detected a focal increase of uptake in the left fronto-parietal cingulate and PET-FDG showed normal distribution of the radiotracer. The posterior right insula was resected with histopathological results of grade I ganglioglioma according to the World Health Organization classification. The patient made favourable post-surgical progress, and remains seizure-free after 5 years (Engel I). Retrospective analysis of this case with two new image processing methods (PET analysis and PET interictal subtracted ictal SPECT coregistered with MR [PISCOM]) correctly localized the epileptogenic focus in the posterior right insular cortex.