Alternative use of endocavitary probe to guide minimally invasive partial nephrectomy: is it reasonable?

Purpose: To describe the use of endocavitary ultrasound probe as an auxiliary tool when performing partial nephrectomy in cases of endophytic renal tumors, to standardize the method, and to report the preliminary results achieved with this technique. Methods: Fifteen patients diagnosed with completely endophytic underwent partial nephrectomy with the use of an endocavitary ultrasound probe. This article describes the technique involved in partial nephrectomy and details the preparation of the endocavitary ultrasound probe to ensure its safe use. Results: All the patients had a RENAL score between 8 and 11. The median time of warm ischemia was 26 and 18 minutes for laparoscopic or robot-assisted surgery, respectively. The median duration of surgery was 150 minutes, and the median console time was 145 minutes for the laparoscopic and robot-assisted surgery groups, respectively. The median estimate of blood loss was 200 mL. Only three patients in the laparoscopic group had focal positive surgical margins. There were no cases of infection at the site of probe entry. Conclusions: Intraoperative use of an endocavitary ultrasound probe for partial nephrectomy is possible and a safe alternative to the excision of endophytic tumors when neither robotic probes nor laparoscopic probes are available.

Impacto de las nuevas tecnologías en la endoscopía diagnóstica y terapéutica / Impact of new technologies in diagnostic and therapeutic endoscopy

El desarrollo y aplicación de la tecnología en la medicina ha creado dilemas éticos para los galenos, al tener que definir hasta qué punto es ético someter a un paciente a una técnica quirúrgica o un procedimiento endoscópico que presente una alta incidencia de complicaciones cuando pueden existir otros con mejores resultados. En este trabajo se analizan los efectos beneficiosos y nocivos de los adelantes tecnológicos para las ciencias médicas, de ahí que el objetivo fue identificar la influencia de la revolución científico técnica en el desarrollo de la cirugía endoscópica endoluminal. Se analiza cómo el médico debe mantener un equilibrio entre la ciencia y la ética, que le permita, además de ser acertado en el diagnóstico y el tratamiento, ser más humano y comprensivo con sus pacientes. Se concluye que la revolución científica técnica de hoy, que integra conocimientos y experiencia, ha dado solidez al cómo hacer y por qué. Sin embargo, los recursos en ocasiones pueden ser limitados. Ello significa que no siempre se puede realizar todo lo que es técnicamente factible. Las buenas prácticas médicas deben acompañar a todos los galenos a sabiendas de que es la vida de un ser humano que ha confiado en sus capacidades intelectuales y buen poder de decisión(AU)

The development and application of technology in medicine has created ethical dilemmas for physicians to define to what extent it is ethical to subject a patient to a surgical technique or an endoscopic procedure that presents a high incidence of complications when there may be others with best results. In this work the beneficial and harmful effects of the technological advancements for the Medical Sciences are analyzed, for that reason the objective of the same one was to identify the influence of the Technical Scientific Revolution in the development of the Endoluminal Endoscopic Surgery. It is analyzed how the doctor must maintain a balance between science and ethics, which allows him, in addition to being successful in diagnosis and treatment, to be more human and understanding with his patients. It is concluded that the technical scientific revolution of today, which integrates knowledge and experience, has given solidity to how to do and why. However, resources can sometimes be limited. This means that everything that is technically feasible cannot always be done. Good medical practices should accompany all physicians knowing that it is the life of a human being who has relied on their intellectual abilities and good decision-making power(AU)

Minilaparoscopic lumbar sympathectomy with 3 mm instruments for plantar hyperhidrosis / Simpatectomia lombar endoscópica com microinstrumental de 3 mm para hiperidrose plantar

Abstract Severe palmoplantar hyperhidrosis affects about 1.5-2.8% of the general population. Plantar hyperhidrosis (PHH) is related to foot odor, cold feet, skin lesions and infections, and even instability when walking. Endoscopic Lumbar Sympathectomy (ELS) is the treatment of choice for this condition. However, few surgeons have used this technique over the past 20 years because of its technical difficulty. Two and 3 mm instruments, rather than the standard 5 mm instruments, have been used to improve the results of several standard laparoscopic procedures. Use of these minilaparoscopic instruments to perform ELS so far has not yet been published. We describe a technique for ELS using minilaparocopic instruments, which we have used for our last 70 cases and has become our standard technique. The aim of this study is to demonstrate the feasibility of this technique and its advantages compared to the conventional technique.

Resumo A hiperidrose palmoplantar grave afeta cerca de 1,5-2,8% da população geral. A hiperidrose plantar está relacionada a odor dos pés, pés frios, lesões cutâneas, infecções, e até instabilidade da marcha. A simpatectomia lombar endoscópica (endoscopic lumbar sympathectomy, ELS) é o tratamento de escolha para essa condição; entretanto, tem sido utilizada por poucos cirurgiões nos últimos 20 anos, devido à sua dificuldade técnica. Instrumentos de 2 e 3 mm em vez de 5 mm vêm sendo utilizados para melhorar os resultados de vários procedimentos laparoscópicos padrão. O uso desses instrumentos para realizar ELS ainda não foi descrito. Descrevemos a técnica para ELS usando microinstrumentos, a qual vem sendo usada para os nossos últimos 70 casos, pois passou a ser nosso procedimento padrão. O objetivo deste estudo é apresentar a experiência com essa modificação técnica, assinalando as vantagens em relação à técnica tradicional.

Retrograde vs. antegrade flexible nephroscopy for detection of residual fragments following PNL: a prospective study with computerized tomography control

ABSTRACT Introduction: The main aim of stone surgery is to establish stone free status. Performing flexible nephroscopy is an effective tool in this manner. The aim of this study was to evaluate the role of retrograde flexible nephroscopy for detection of residual fragments following percutaneous nephrolithotomy (PNL) in comparison with antegrade approach. Materials and Methods: Data of 137 patients underwent ECIRS was collected prospectively. In all cases following stone clearance, collecting system was checked for residual fragments. First antegrade than retrograde flexible nephroscopy was performed and success rates to reach all calices and detection of residual fragments were noted. All patients underwent CT and success rate of antegrade and retrograde approaches were compared. PPV and NPV of retrograde approach to detect residual fragments were calculated. Results: Antegrade and retrograde nephroscopy successfully accessed all of the calices in 101 (73.7%) and 130 (94.9%) patients respectively (p<0.0001). Residual fragments were observed in 18 (13.1%) patients following antegrade flexible nephroscopy. Retrograde approach identified residual stones in 17 more cases. These cases were treated with flexible nephroscopy or secondary percutaneous tract. Postoperative CT revealed residual stones in 10 (7.3%) patients. PPV and NPV of retrograde flexible nephroscopy were 83.3% and 96.2%. Conclusions: Flexible nephroscopy effectively detects residual fragments following PNL. Retrograde approach was more successful than antegrade approach to reach all calices. We recommend performing retrograde flexible nephroscopy following PNL especially in complex cases as it has the potential to increase SFR, decrease the need for second look surgery and unnecessary postoperative imaging.

Experimental model for transforaminal endoscopic spine

Abstract Purpose: To validate the porcine spine as a model for learning and practicing transforaminal percutaneous endoscopic lumbar procedures (TF-PELP). Methods: TF-PELP was performed in three porcine cadaver lumbar spine levels. Anatomical features of the current cadaver were compared to human and porcine spines. Performance and documentation of endoscopic procedures were described. Results: This study shows that this representative animal model reflects anatomical characteristics of the human spine. Transforaminal approaches were successfully completed. Although lower disc heights make disc puncture more difficult, the outside-in technique is feasible and more useful to identify anatomical parameters and to practice different surgical steps and maneuvers. Conclusion: This is an effective and representative model for learning and practicing this procedure. Difficulties of the procedure, as well as the differences compared to the human spine, were described.

Safety of non-anaesthesiologist-administered propofol sedation in ERCP

Propofol is increasingly being used for sedation purposes during endoscopic retrograde cholangiopancreatography [ERCP]. This study aimed to evaluate the safety of nonanaesthesiologist administration of propofol [NAAP] during therapeutic ERCP. Patients, who underwent ERCP at Centre for Liver and Digestive Diseases, Holy Family Hospital, Rawalpindi, were included in the study. Propofol sedation was administered by a physician who was a non-anaesthesiologist certified in basic and advanced cardiac life support. The total study duration was 6 months. The primary outcome variable was the frequency of any sedation-related complication. A total of 156 patients [41% males and 59% females] were enrolled in the study. The mean propofol dose used during the procedure was 201 +/- 132 mg. The mean propofol dose, when adjusted to weight and duration of procedure, was 0.05 +/- 0.04 mg kg[-1] min[-1]. According to the American Society of Anesthesiologists [ASA] classification. 136 [87%] patients were placed in ASA class I and II and 20 [13%] patients were of ASA class III. Only two patients developed sedation-related complication: one minor requiring bag-mask ventilation and other major requiring mechanical ventilation via endotracheal intubation. Both were managed by the trained non-anaesthesiologist and gastroenterologist at the pIace of procedure. No patients required cardiopulmonary resuscitation and admission to the intensive care unit. There were no sedation-related deaths. NAAP sedation can be considered safe for low-risk patients [ASA class I and II] undergoing ERCP. The presence of a trained anaesthetist is advisable in high-risk patients [ASA class III and higher] with significant co-morbidities

A desinfecção de endoscópios com ácido peracético por dez minutos é efetiva? / Is endoscope disinfection with peracetic acid during ten minutes effective?

Artigos médico-hospitalares permanentes necessitam ser processados de maneira segura. Os objetivos foram avaliar a efetividade do ácido peracético na desinfecção de eendoscópios; identificar a oxidação dos equipamentos e verificar o tempo de atividade da solução. Métodos: Coletamos 40 amostras antes e 40 após a desinfecção dos gastroscópios. os lavados foram envaidos para identificação de bactérias, fungos e micobactérias. A avaliação da integridade foi feita antes e após seis meses. A monitoração da atividade da solução foi diária. Resultados: Pré-desinfecção, 12,5% dos videogastroscópicos foram positivas e pós, todas negativas. Na pré-desinfecção dos videocolonoscópios, 34,1% positivas e na pós-desinfecção, negativas. Pesquisa para micobactérias foi negativa. Conclusões: a desinfecção por dez minutos de endoscópios com ácido peracético foi efetiva, os equipamentos não oxidaram, e a solução apresentou boa estabilidade.

Initial Experience of Transurethral Resection with Pediatric Resectoscope for Incomplete Anterior Urethral Stricture

Purpose Endoscopic urethrotomy is an alternative method in treatment of urethral stricture. However, it have high recurrence rate because of the remained fibrotic tissue. Removal of the fibrotic tissue can maintain the patency of the urethral lumen after the procedure. We report the therapeutic efficacy of our initial experience using pediatric resectoscope for treating anterior urethral stricture in 16 cases. Materials and Methods From January 2009 to April 2011, transurethral resection with pediatric resectoscope was primarily performed on 16 patients with anterior urethral stricture. Retrograde urethrography, uroflowmetry, postvoid residual volume, IPSS score and QoL score were performed preoperatively. We used 11.5Fr pediatric resectoscope (Wolf) and monopolar electrosurgical generator. The stricture was incised under vision at the 12 o'clock location or the site of maximum scar tissue or narrowing in asymmetric strictures for working space. After incision, transurethral resection with pediatric resectoscope was performed to all scar tissues. Monopolar cutting current was set on 45 watt and coagulation current was set on 30 watt, fulgurate mode. Postoperatively, drainage of the bladder was performed for 7 days using an 18F latex catheter. Patients were followed up by IPSS score, QoL score, uroflowmetry and postvoid residual volume. Results Successful results without recurrence were achieved in 11 of 16patients. Postoperative urethral dilation had been performed average 2.4 times (0∼6 times). When we classified the results by etiology, the number of successful results in strictures with a trauma, iatrogenic, or unknown cause was 5 (7/11), 3 (3/4) and 1 (1/1), respectively. In 5 patients who failed treatment, we repeated transurethral resection with pediatric resectoscope in 1 patient, and periodic urethral dilation in 4 patients. No operative complications occurred in any patients. Conclusions Transurethral resection with ...

Coledoscopia con un videoendoscopio ultradelgado / Choledoscopy with an ultraslim endoscope

El interés en la coledoscopia se ha incrementado por la aparición de nuevos equipos de videoendoscopia electrónica de diámetro muy delgado dotados de microchips que proveen mejores imágenes (CCD). Se presenta nuestra experiencia inicial con el uso de un endoscopio ultradelgado para la visualización del hepatocolédoco. Se empleó un nasofibroscopio ultradelgado Fujinon EG-530N de 5,9 mms de diámetro (EG530N, Fujinon-Toshiba, Tokyo, Japón). Se presentan 7 casos en los que se practicó con este equipo una coledocoscopia con fines diagnósticos. Fue posible detectar la presencia de litiasis residual después de procedimientos endoscópicos para extraer cálculos en dos pacientes, confirmar la ausencia de cálculos en otros 3, diagnosticar mediante biopsia guiada por coledoscopia la naturaleza de una lesión estenosante a nivel del hilio hepático (adenoma tubular) y precisar la causa de disfunción de una prótesis biliar metálica autoexpandible. 1. Se presenta nuestra experiencia inicial con coledoscopia practicada con un videoendoscopio ultradelgado. 2. Se discuten las indicaciones del procedimiento y las complicaciones eventuales del mismo. 3. Se demuestra la factibilidad del procedimiento y la utilidad del mismo en el manejo de patología biliar

The interest with choledoscopy has been increased with the new videoendoscopy instruments of very small diameter provided with microchips which give better images (CCD). Patients and methods: a nasofiberscope, 5.9 mm diameter (EG530N, Fujinon-Toshiba, Tokyo, Japan) was utilized. We present 7 cases studied with choledoscopy performed with this instrument for diagnostic purposes. It was possible to detect residual lithiasis after endoscopic procedures for the extraction of biliary stones in two cases, to confirm the absence of stones in other three cases, to diagnose with choledoscopy-guided biopsy the presence of a stenosing lesion at the hepatic hilum (tubular adenoma) and to precise the cause of dysfunction of a self-expandable metal stent. 1. Our initial experience with choledoscopy performed with a small caliber videoendoscope is presented. 2. The indications and eventual complications of the procedure are discussed. 3. The feasibility of the procedure and its application in the management of biliary pathology is demonstrated

Endoscopically assisted root splitting (EARS): method and first results / Sección radicular endoscópicamente asistida (SREA): método y primeros resultados

The trauma of surrounding bone structures during exodontia represents a mayor clinical shortcoming of conventional oral surgery. An alternative minimal invasive technique is presented to support aesthetic rehabilitation by conservation of alveolar bone walls. Endoscopically assisted root splitting (EARS) is a new technique for root removal wothout ostectomy. EARS consists of enlargment of the root canal, longitudinal root splitting, inward mobilisation and removal of the fragments under endoscopic control. In 24 patients (11 m, 13 f), aged 18-66 years, 8 central incisors, 6 lateral incisor, 5 canines and 5 bicuspids were removed using EARS. Endoscopic observation revealed complete maintenance of the buccal wall at it's preoperative level, control radiographs showed no apical root remnants. EARS has revealed to be a valuable tool to avoid alveolar crest trauma during exodontia...

El trauma de las estructuras circundantes al hueso durante la exodoncia representa una de las principales deficiencias de la cirugía cirugía oral convencional. Se presenta una técnica alternativa mínimamente invasiva para apoyar la rehabilitación estética mediante la conservación de las paredes alveolares óseas. La sección radicular endoscópicamente asistida (SREA) es una nueva técnica para la eliminación de raíz sin osteotomía. La SREA consiste en la ampliación del canal de la raíz, división longitudinal de la raíz, movilización hacia el interior y eliminación de los fragmentos bajo control endoscópico. En 24 pacientes (11 hombres y 13 mujeres), con edades comprendidas entre 18-66 años, 8 incisivos centrales, 6 incisivos laterales, 5 caninos y 5 premolares fueron eliminadas mediante SREA. La observación endoscópica reveló la mantención completa de la pared ósea bucal a nivel preoperatorios, y las radiografías de control no mostraron restos radiculares apicales. SREA se muestra como una valiosa herramienta para evitar el trauma de la cresta alveolar durante la exodoncia...

Update on Endoscopic Management of Main Pancreatic Duct Stones in Chronic Calcific Pancreatitis

Pancreatic duct stones are a common complication during the natural course of chronic pancreatitis and often contribute to additional pain and pancreatitis. Abdominal pain, one of the major symptoms of chronic pancreatitis, is believed to be caused in part by obstruction of the pancreatic duct system (by stones or strictures) resulting in increasing intraductal pressure and parenchymal ischemia. Pancreatic stones can be managed by surgery, endoscopy, or extracorporeal shock wave lithotripsy. In this review, updated management of pancreatic duct stones is discussed.

Gasless Transaxillary Robot-Assisted Neck Dissection: A Preclinical Feasibility Study in Four Cadavers

PURPOSE: We hypothesized that comprehensive neck dissection could be achieved via a gasless transaxillary approach using a robotic system. We intended to evaluate the accessibility of level I, IIB and VA nodes with transaxillary robot-assisted neck dissection of four cadavers. MATERIALS AND METHODS: Transaxillary robotic neck dissection was performed in four cadavers through a 7-cm longitudinal incision at the anterior axilla and a 0.8-cm-sized incision in the chest wall. RESULTS: We successfully performed neck dissection from level II to V in all four cadavers. However, dissection of levels IIB and VA, which lie on the cephalic portion of the spinal accessory nerve, was difficult. Vital structures, including the internal jugular vein, carotid artery, vagus nerve, phrenic nerve, superior thyroid artery and hypoglossal nerve, were successfully identified and preserved. CONCLUSION: Our results demonstrate the feasibility of robot-assisted neck dissection using a transaxillary approach. We suggest that gasless, transaxillary robotic neck dissection is a promising technique for treating nodal metastasis in thyroid cancers or in selected squamous cell carcinomas of the head and neck. However, some modification of the approach might be needed when performing comprehensive neck dissections of all levels of the neck.

Retroperitoneal less donor nephrectomy

Donor nephrectomy with laparo-endoscopic single site (LESS) surgery has been reported via the transperitoneal approach. We describe a novel technique of retroperitoneal donor nephrectomy using a single surgical incision in the groin, below the abdominal skin crease or "bikini line". The LESS groin incision offers superior cosmesis, while the retroperitoneal approach has distinct advantages, such as the ability to identify the renal vessels early. The new procedure has been performed in two obese patients (body mass index 32 and 33 kg/m2, respectively). The operative times were 4 and 5 hours, warm ischemic times 135 and 315 seconds, blood loss 100 and 250 mL, and hospitalization 3 and 2 days, respectively. Retroperitoneal LESS donor nephrectomy through a single, inconspicuous groin incision is feasible and safe. Further evaluation of the technique in a larger patient cohort is indicated.

Acute buried bumper syndrome: An endoscopic buried bumper syndrome:approach.

Acute buried bumper syndrome is an uncommon complication of percutaneous endoscopic gastrostomy (PEG) tube placement. If not recognized and treated appropriately, it can lead to serious complications including death. We report a case of an acute buried bumper syndrome, successfully managed with PEG tube repositioning through the original tract, without the need of replacement.

Colangiopancreatografía retrógrada endoscópica: prácticas en un centro hospitalario privado / Endoscopic retrograde cholangiopancreatography: practices in a private hospital

Colangiopancreatografía Retrógrada Endoscópica (CPRE), es un método endoscópico avanzado que posibilita el estudio y tratamiento de la vía biliar y pancreática. Este procedimiento requiere alto nivel de conocimientos y destrezas técnicas para garantizar mínimas complicaciones en el paciente. En nuestro país, existen pocos centros para la formación de gastroenterólogos para desarrollar habilidad en la realización de CPRE. Determinar la casuística en procedimientos de CPRE en un centro privado para proveer los estándares más altos en la capacitación teórica y práctica en las técnicas avanzadas de este procedimiento. Estudio retrospectivo, descriptivo, que incluyó pacientes con patologías bilio-pancreáticas que acudieron a la Policlínica Metropolitana y se les realizó CPRE. Durante el período de estudio se realizaron 815 procedimientos, 486 (59,6%) y 329 (40,36%) eran del sexo femenino y masculino respectivamente. La edad promedio de los pacientes fue 53,34 años, con edades comprendidas entre 2 y 98 años, con 18 menores de 12 años. Las indicaciones más frecuentes: colestasis, litiasis biliar, pancreatitis aguda y crónica. Otras indicaciones: fístula biliar, recambio de prótesis, colangitis y pacientes con tumor bilio-pancreático. Los procedimientos terapéuticos abarcaron desde esfinterotomía hasta ampulectomía, toma de biopsia, colocación de prótesis tanto en vía biliar como pancreática, con resolución del problema en la mayoría de los pacientes. Hubo complicaciones en 36 pacientes (4,17%), las más frecuentes fueron hemorragia (16) y pancreatitis post-CPRE (7), de los cuales 3 fueron severas. No se reportaron muertes debido al procedimiento. En nuestro estudio demostramos que estamos dentro de lo que realiza cualquier centro de entrenamiento reportado en la literatura mundial (número de procedimientos, indicaciones, hallazgos, procedimientos terapéuticos y tasa de éxito...

Endoscopic Retrograde Cholangiopancreatography (ERCP) is an advanced endoscopic procedure that allows the study and treatment of biliary and pancreatic ducts. This procedure requires a higher level of knowledge and technical skills, to ensure a minimal complications outcome of the patient. In our country there are few training centers for gastrointestinal specialists for developing the necessary skills for performing ERCP. To asses the statistics of ERCP procedures that were performed in our private hospital between January 2005 until January 2009, to demonstrate that we possessed the high standars on capacitation, both theorical and practical on performing ERCP. ItÊs a descriptive and retrospective study, including all patients that came to our center with pancreatic or billiary pathology and underwent the procedure. 815 ERCP were performed during the time of the study, 486 (59.6%) were female and 329 (40, 36%) were male. The mean age was 53, 34 years, with range between 2 and 98 years, and 18 patients were younger than 12 years. The main indications for the procedure were cholestasis, billiary litiasis, acute and chronic pancreatitis. Also other indications were billiary fistulae, billiary prothesis placement and replacement, cholangitis and tumors of the pancreas and billiary ducts. The therapeutics procedures performed were sphinctectomy, ampullectomy, biopsy, billiary and pancreatic prothesis placement. In most of the cases the problem was solved. There were complications in 36 patients (4, 17%), the most common being bleeding 16 and post ERCP acute pancreatitis 7 there were no deaths attributed to the procedure. In our study we show that our statistics are well placed among the standards of any reported trainning center in the world, regarding number of procedures, indications for the procedure, findings, therapeutic procedures and a very low morbility/mortality rate...

Describen la utilidad de la endoscopia virtual para diagnosticar enfermedades del tracto urinario superior / Virtual endoscopy in the diagnosis of upper urinary tract pathologies

Introducción: La patología del tracto urinario superior supone un reto diagnóstico para el urólogo. La aparición de nuevo hardware y software de adquisición y procesamiento de imágenes de tomografía computarizada (TC) ha hecho posible el desarrollo de técnicas como la que presentamos en este estudio. Material y métodos: Entre enero de 2005 y agosto de 2007 hemos incluido 57 urografías por tomografía computarizada (Uro-TC) realizadas en nuestro centro a pacientes con enfermedades del tracto urinario superior. Recogemos las indicaciones, los diagnósticos y comparamos los valores de validez interna y externa de la prueba con los de otras exploraciones radiológicas. Resultados: Realizamos un total de 57 exploraciones a 56 pacientes con edades entre los 38 y los 84 años en las que diagnosticamos 21 litiasis, 8 neoformaciones uroteliales, 2 pélvicas, 3 ureterales y 3 vesicales. En 6 pacientes con ureterohidronefrosis de etiología incierta en otras exploraciones conseguimos dilucidar la causa de la obstrucción. Diagnosticamos 2 litiasis durante el seguimiento de pacientes portadores de derivaciones urinarias, así como 5 casos de estenosis benigna. En 11 pacientes se diagnosticaron diferentes malformaciones congénitas. Los valores de validez interna de la prueba fueron superiores a los de las pruebas de imagen usadas convencionalmente para el diagnóstico de trastornos del tracto urinario superior. Conclusiones: La Uro-TC es una prueba eficiente, que está al alcance de la mayoría de centros en los que se disponga de la tecnología necesaria. Permite en casos seleccionados optimizar recursos sanitarios y agilizar el diagnóstico de la enfermedad urológica.

Manual endoscopia digestiva superior diagnóstica / Manual diagnostic upper endoscopy

En el Manual se muestran los pasos para la confección del informe endoscópico (descripción, interpretación y diagnóstico final), describiéndose las características endoscópicas normales del esófago, estómago y duodeno y los términos empleados por la Organización Mundial de Endoscopia, así como, las posibilidades diagnósticas ante variaciones de su normalidad. Se describen las enfermedades más frecuentes del esófago, estómago, duodeno y afecciones misceláneas; se hace referencia, sistemáticamente al concepto, diagnóstico y clasificación endoscópica de cada una de ellas. En Cuba no se contaba con un manual o libro de texto donde el estudiante de la endoscopia digestiva superior pueda consultar de una forma didáctica y resumida los diagnósticos y clasificaciones endoscópicas de las afecciones más frecuentes del tracto digestivo superior, junto con los aspectos técnicos de la endoscopia. Esta ha sido la principal motivación para la realización de esta obra, con la colaboración de excelentes endoscopistas, estudiosos de este fascinante mundo.

Experiencia con el uso del microdebridador en cirugía nasal / Experience using microdebridator in nasal surgery

Se analiza la experiencia quirúrgica del autor en el microdebridador nasal. Enumerando sus características técnicas y las ventajas de su uso en poliposis efectuadas 12, adenoidectomías 7, turbinectomía 1 y cirugías endoscópicas funcionales 4