Efecto de la aplicación de un protocolo para pie diabético en un servicio de cirugía general / Effect of the application of a diabetic protocol in a general surgery service

Resumen Objetivo: El fin principal en el paciente con pie diabético es evitar la amputación, por ello, este estudio pretendió analizar el efecto que produjo la instauración de un protocolo de actuación para el pie diabético en nuestro departamento de salud. Materiales y Método: Se trata de un estudio retrospectivo. Se evaluó la edad, el sexo, la tasa de amputaciones y re-amputaciones en el primer mes, la estancia media y la añadida por reingreso para reamputación, la solicitud de pruebas analíticas y radiológicas complementarias específicas (analítica de sangre completa con hemoglobina glicosilada y angioTC/RWdoppler arterial de miembros inferiores), y pacientes derivados al centro de referencia para valorar revascularización. Todos estos datos se analizaron comparando los pacientes ingresados con diagnóstico de pie diabético en el periodo previo a la implantación del protocolo (años 2010 a 2013), con los del periodo posterior (años 2014 a 2018). Resultados: Se compararon grupos homogéneos en cuanto a edad y sexo. El resultado del análisis fue una reducción estadísticamente significativa de la tasa de amputaciones (172 frente a 111, media de 22,2 ± 9,9), reamputaciones (41 frente a 15) y de reingreso (18 frente a 7) por mala evolución en el primer mes. No se encontraron cambios en el número de pruebas complementarias radiológicas realizadas y el número de pacientes remitidos a hospital de referencia para valorar revascularización. Conclusiones: Dentro del manejo multidisciplinar, el cirujano general es uno de los pilares importantes. La implantación de un protocolo de actuación para el pie diabético reduce de forma significativa la tasa de amputaciones.

Aim: The main objective in the patient with diabetic foot is to avoid amputation, thus, this study pretended to analyze the effect produced by the introduction of a protocol for the diabetic foot in our Department of Health. Materials and Method: It is a retrospective study. Age, sex, amputation and re-amputations rate in the first month, the average stay and the hospital re-entry were evaluated, the request for specific complementary analytical and radiological tests (blood test analytics with glycosylated hemoglobin and CT/MR/doppler arterial limb angiography) and patients remitted to the reference center to assess revascularization. All these data were analyzed comparing the patients admitted with diagnosis of diabetic foot in the period before to the implementation of the protocol (years 2010 to 2013) with those of the subsequent period (years 2014 to 2018). Results: Homogeneous groups were compared by age and sex. The result of the analysis was a significant reduction in the rate of amputations (172 versus 111, average of 22.2 ± 9.9), re-amputations (41 versus 15) and re-entry due to poor evolution in the first month (18 versus 7). No changes were found in the number of complementary radiological tests performed and the number of patients remitted to the reference hospital to assess revascularization. Conclusions: In the multidisciplinary management, the general surgeon is one of the important pillars. The implementation of an action protocol for the diabetic foot significantly reduces the amputation rate.

Reoperaciones no programadas en un servicio de cirugía adultos: análisis del protocolo MINSAL / Unscheduled reoperations in adult surgery: analysis of the MINSAL protocol

Resumen Introducción: El análisis de reoperaciones no programadas (RONP) es un indicador de calidad solicitado por el Ministerio de Salud de Chile (MINSAL) desde julio de 2010 como una forma de retroalimentar a los equipos quirúrgicos sobre las causas de reintervenciones en cirugía electiva, promoviendo la discusión técnica en una reunión clínica de pares. Objetivo: Evaluar los resultados de un protocolo de RONP en un hospital público docente de alta complejidad. Materiales y Método: Estudio descriptivo que analiza la base de datos prospectiva iniciada en nuestro centro en julio de 2010 incluyendo todos los pacientes reoperados antes de 30 días desde la intervención inicial electiva. El indicador se consideró cumplido si hubo un análisis crítico del caso antes de 15 días desde la fecha de la reintervención y si hay un documento que lo respalda. Resultados: En el periodo de 9,5 años se efectuaron 18.536 intervenciones electivas con una tasa global de RONP de 2,5%. El protocolo se cumplió en el 97% de los casos. Las RONP representan el 45,5% de la mortalidad global de los equipos estudiados en el periodo. Conclusión: El indicador de las RONP nos parece una práctica relevante en el contexto acotado de un servicio y su evolución en el tiempo. No es útil como indicador global de una institución que involucra servicios de adultos y niños con múltiples especialidades no comparables. Para cumplir con el objetivo debe medirse en forma prospectiva, completa, no discriminatoria y sin carácter punitivo. Teóricamente podría retroalimentar la estrategia quirúrgica de los equipos.

Background: Unplanned reoperations (UPRO) after elective surgery was proposed by Ministry of Health (MINSAL) as a quality indicator since 2010. The goal was to promote the discussion between pairs as an effective feedback for the surgical team. Aim: The purpose of this study is to analyze the results of a protocol of UPRO in a high complexity public institution. Materials and Method: The 9.5 years data base starting in July 2010 was analyzed. All reoperations within 30 days of the initial surgery were included. The UPRO indicator was considered fulfilled if the critical discussion of the case occurred in the clinical meeting within 15 days of the reoperation and if there is a document to support it. Results: in the indicated period the rate of UPRO was 2.5% (455 of 18,536 patients) and the protocol was accomplished in 97% of the cases. The stay in hospital and mortality rate in re-operated patients were high, with great differences between the surgical teams. Conclusions: The UPRO indicator is useful as a detailed analysis of postoperative morbidity of specific surgical teams and the changes along the years. Considering the great differences between the procedures in adults and children and the huge variation and complexity of the operations of multiple surgical specialties, it seems not relevant as a global indicator of a General Hospital. The UPRO must be prospective, complete, non-discriminatory and non-punitive. Theoretically UPRO could be useful as a feedback of surgical teams.

Reintervención Quirúrgica No Programada: Un análisis de calidad de la atención / Unplanned Return to the Operating Room: An analysis of the quality of the health care

INTRODUCCIÓN: Una Reintervención Quirúrgica No Programada (RQNP) es aquella cirugía no planificada que se rea liza durante los primeros 30 días como consecuencia de una cirugía primaria. En Chile, el análisis y la tasa de RQNP son un indicador de calidad. OBJETIVO: describir y analizar las RQNP en pediatría. PACIENTES Y MÉTODO: Estudio observacional de corte transversal. Se revisaron los registros clínicos de los pacientes pediátricos sometidos a RQNP en el Hospital Carlos Van Buren en un período de 5 años. Se analizó su incidencia, indicaciones y causas que se clasificaron en 1) causas atribuibles a la técnica quirúrgica; 2) causas relacionadas al tratamiento; 3) patología propia del paciente y 4) otras causas. Se analizó además el cumplimiento de reuniones de análisis de RQNP. RESULTADOS: Se efectuaron 23 RQNP de un total de 5.503 cirugías en 5 años (0,42%). Hubo 11 RQNP de 3.434 cirugías electivas realizadas y 12 RQNP de 2069 cirugías de urgencia realizadas (0,32% v/s 0,58% respectivamente, p = NS). Hubo 2 RQNP en los 82 recién nacidos operados en el período (2,43%, p < 0,01). En todos los casos se realizaron reuniones de análisis de RQNP. En 18 de los 23 pacientes sometidos a RQNP se encontró una causa atribuible a la técnica o planificación quirúrgica. CONCLUSIONES: Las RQNP son poco frecuentes en pediatría excepto en el período neonatal. Se da total cumplimiento a la normativa nacional de reunión de análisis luego de una RQNP que indican que las causas son mayoritariamente atribuibles a la técnica o planificación quirúrgica.

INTRODUCTION: An Unplanned Return to the Operating Room (UROR) is an unplanned surgery performed during the first 30 days as a result of primary surgery. In Chile, the analysis and the UROR rate are quality indicators. OBJECTIVE: to describe and analyze UROR in a pediatrics. PATIENTS AND METHOD: Observa tional cross-sectional study. The clinical records of pediatric patients undergoing UROR at the Hos pital Carlos Van Buren over 5 years were reviewed. The incidence, indications, and causes of UROR were analyzed. The causes of UROR were classified as 1) causes attributable to surgical technique, 2) treatment-related causes, 3) the patient pathology, and 4) other causes. In addition, the observance of the case review meetings after an UROR was analyzed. RESULTS: 23 UROR out of 5,503 surgeries were performed in 5 years, (0.42%). There were 11 UROR out of 3,434 elective surgeries and 12 UROR out of 2,069 emergency ones (0.32% v/s 0.58% respectively, p=NS). There were 2 UROR out of 82 surgeries in newborns, (2.43%, p<0.01). After every UROR, a case review meeting was held. In 18 out of the 23 patients who underwent UROR (78%), the cause was attributable to the surgical technique or planning. CONCLUSIONS: UROR is rare in pediatric surgery, except for the newborn period. Case review meetings are held after every UROR case, according to the national guidelines. The causes of UROR are mostly attributable to the surgical technique or planning.

Does total hip arthroplasty provide better outcomes than hemiarthroplasty for the femoral neck fracture? A systematic review and meta-analysis / 中华创伤杂志(英文版)

PURPOSE@#By comparing the outcomes of total hip arthroplasty with hemiarthroplasty in elderly patients with a femoral neck fracture to investigate the one-year mortality, dislocation, infection, reoperation rate, and thromboembolic event.@*METHODS@#The PubMed, EMBASE databases, and Cochrane library were systematically searched from the inception dates to April 1, 2020 for relevant randomized controlled trials in English language using the keywords: "total hip arthroplasty", "hemiarthroplasty" and "femoral neck fracture" to identify systematic reviews and meta-analyses. Two reviewers independently selected articles, extracted data, assessed the quality evidence and risk bias of included trials using the Cochrane Collaboration' stools, and discussed any disagreements. The third reviewer was consulted for any doubts or uncertainty. We derived risk ratios and 95% confidence intervals. Mortality was defined as the primary outcome. Secondary outcomes were other complications, dislocation, infection, reoperation rate, and thromboembolic event.@*RESULTS@#This meta-analysis included 10 studies with 1419 patients, which indicated that there were no significant differences between hemiarthroplasty and total hip arthroplasty in reoperation, infection rate, and thromboembolic event. However, there was a lower mortality and dislocation rate association with total hip arthroplasty at the one-year follow-up.@*CONCLUSION@#Based on our results, we found that total hip arthroplasty was better than hemiarthroplasty for a hip fracture at one-year follow-up.

Our tubularized incised plate urethroplasty Repair. Results for Hypospadias Surgery

Background: The Tubularized Incised Urethral Plate (TIP) urethroplasty is a widely accepted technique among urologists and heavily used in their centers. This technique was developed by Snodgrass in 1994 for repairing varied degrees of hypospadias. Aim: This paper aims at analyzing and evaluating our early experience and the outcomes of using TIP urethroplasty technique. Therefore, the results have to be assessed in a large series. Methods: In this prospective study, 95 patients with varying hypospadiac meatus levels who experienced the procedure of TIP. During the entire sampling period, patients had varying degrees of hypospadias ranging from glanular to penoscrotal (glanular 2, coronal/subcoronal 37, distal shaft 30, mid-shaft 10, proximal shaft 5 and penoscrotal 11). Results: The overall success rate of TIP procedure repair of hypospadias was 87.4%; whereas the overall reoperation rate was 12.6%. The highest percentage was for those with failed previous repair (secondary). The average duration of the procedure was 58.6±18.4 minutes. Nearly a third of the patients developed one or more postoperative major complication. The total rate of fistula was 12.6%, with "10.6% in primary distal, 15.9% in primary proximal and 20% in secondary repair". Sixteen cases had a mild degree of "meatal stenosis" (16.8%), but all were managed by simple dilatation at the office or at home using 8 F feedingtube. Conclusion: The outcomes demonstrated that the TIP procedure is a quick, safe and reliable technique. Additionally, it can provide excellent cosmoses and function with few complications and acceptable reoperation rate.

Early and long-term outcomes of surgical treatment of ebstein's anomaly

Abstract Objective: This study aimed to evaluate Ebstein's anomaly surgical correction and its early and long-term outcomes. Methods: A retrospective analysis of 62 consecutive patients who underwent surgical repair of Ebstein's anomaly in our institution from January 2000 to July 2016. The following long-term outcomes were evaluated: survival, reoperations, tricuspid regurgitation, and postoperative right ventricular dysfunction. Results: Valve repair was performed in 46 (74.2%) patients - 12 of them using the Da Silva cone reconstruction; tricuspid valve replacement was performed in 11 (17.7%) patients; univentricular palliation in one (1.6%) patient; and the one and a half ventricle repair in four (6.5%) patients. The patients' mean age at the time of surgery was 20.5±14.9 years, and 46.8% of them were male. The mean follow-up time was 8.8±6 years. The 30-day mortality rate was 8.06% and the one and 10-year survival rates were 91.9% both. Eleven (17.7%) of the 62 patients required late reoperation due to tricuspid regurgitation, in an average time of 7.1±4.9 years after the first procedure. Conclusion: In our experience, the long-term results of the surgical treatment of Ebstein's anomaly demonstrate an acceptable survival rate and a low incidence of reinterventions.

Factores pronósticos para pérdida de extremidad con trauma arterial periférico en un hospital de Colombia / Prognostic factors for extreme loss in peripheral arterial trauma at a Colombian hospital

INTRODUCCIÓN: El trauma vascular es un evento de baja frecuencia, con alta morbimortalidad que afecta la población joven; requiere en general un manejo quirúrgico. Se asocia a complicaciones desde la reintervención quirúrgica hasta la amputación de la extremidad, influenciado por variables tanto asociadas al trauma como a la atención hospitalaria. OBJETIVO: Determinar los factores de riesgo relacionados con amputación, en pacientes con trauma arterial periférico (TAP), atendidos en un Hospital de III nivel Huila- Colombia entre 2014-2017. MATERIALES Y MÉTODOS: Estudio observacional, analítico de corte retrospectiva con pacientes mayores de 13 años con TAP. RESULTADOS: Se incluyeron 79 pacientes, con un 1,56% de las consultas en nuestro Servicio de Urgencia. 89% hombres, promedio de edad 28,5 años. La principal comorbilidad fue la farmacodependencia 8,8%. El MESS (mangled extremity severity) promedio fue de 5,27 puntos y un tiempo critico de isquemia de extremidad > a 6 horas en el 38%. El mayor compromiso fue de miembros superiores, secundario a heridas por arma cortopunzante. La lesión predominante fue la transección arterial. Las principales complicaciones posquirúrgicas fueron la trombosis del vaso (21,5%) y la amputación (13,9%). Factores de riesgo asociados a amputación fueron la edad > 20 años, estancia hospitalaria > 7 días, MESS > 7 puntos, que presentaran como complicación quirúrgica la trombosis arterial y que requirieran reintervención quirúrgica. CONCLUSIONES: El trauma arterial periférico es una patología con gran repercusión socioeconómica y secuelas funcionales. Es necesaria la atención oportuna con tratamiento de las variables relacionadas con mal pronóstico, con el fin de disminuir las tasas de morbimortalidad.

INTRODUCTION: Vascular trauma is a low frequency event, with high morbidity and mortality that affects the young population; In general, it requires surgical management. It is associated with complications from surgical reintervention to amputation of the limb, influenced by trauma associated variables such as hospital care. AIM: Determine risk factors related to amputation, in patients with peripheral arterial trauma (TAP), treated at a Hospital of III level Huila-Colombia between 2014-2017. MATERIALS AND METHOD: Observational, retrospective analytical study with patients older than 13 years with TAP. RESULTS: We included 79 patients with an incidence of 1.56%. 89% men, average age 28.5 years. The main comorbidity was 8.8% drug dependence. The MESS (Mangled extremity severity) average was of 5.27 points and a critical time of limb ischemia > to 6 hours in 38%. The greater commitment was of superior members, secondary to injuries by sharp weapon. The predominant lesion was arterial transection. The main postoperative complications were vessel thrombosis (21.5%) and amputation in 13.9%. Risk factors associated with amputation were determined by age > 20 years, hospital stay > 7 days, MESS > 7 points, and that they presented arterial thrombosis as a surgical complication and finally required surgical reoperation. CONCLUSIONS: Peripheral arterial trauma is a pathology with great socioeconomic impact and functional sequelae. It is necessary the timely attention with treatment of the variables related to poor prognosis, in order to decrease the morbidity and mortality rates.

Identificação e análise das causas responsáveis por reoperações de estrabismo / Identification and analysis of the responsible causes for reoperations of strabismus

RESUMO Introdução: A dificuldade na obtenção de resultados previsíveis é um grande desafio atual da cirurgia corretiva de estrabismo. Os resultados não desejados podem ocorrer em cerca de 51% dos procedimentos e a dificuldade pode ser devida ao fato da cirurgia ser realizada sobre tecidos perioculares bastante moles e com difícil referência para a localização anatômicas das estruturas. Objetivo: Identificar e analisar as principais causas responsáveis por reoperações nos usuários submetidos à cirurgia corretiva de estrabismo, atendidos no Centro de Oftalmológico do HUUFMA, em São Luís-MA. Métodos: Estudo do tipo pesquisa documental retrospectiva dos registros institucionais, por meio da coleta de dados dos prontuários físicos e eletrônicos no sistema ambulatorial interno do HUUFMA. Resultados: A taxa de reoperação analisada foi de 7,31%. Foram operados 89 pacientes menores de 15 anos (72,35%), 23 na faixa de 15 a 30 anos (18,69%) e 11 pacientes maiores de 30 anos (8,94%). A média da idade dos 123 operados foi de 10,32 anos. O sexo feminino foi prevalente na população (58,53%). Conclusão: O desvio Esotrópico (ET) foi o tipo de desvio mais comum no grupo de reoperados. Os resultados inesperados e os maiores desvios foram nos pacientes com relatos de comorbidades e/ou síndromes associadas ao estrabismo, assim como o desvio horizontal congênito (Dhc) foi prevalente entre as queixas apresentadas. A anestesia geral foi mais relatada em pacientes de menor faixa etária. O tempo médio decorrido entre a primeira e a segunda cirurgia foi de 10,54 meses e houve relativa prevalência das subcorreções nas reoperações.

ABSTRACT Introduction: The difficulty in obtaining predictable results is a great challenge on the strabismus surgery field. Procedures can lead to an undesirable development in about 51% of patients, and this difficulty may be due to surgery being perfomed on soft periocular tissues in which anatomical structure can be tricky to locate. Objective: Identify and analyse the main causes of reoperation on strabismus surgery patients treated at Centro Oftamológico do HUUFMA, in São Luís-MA. Methods: A retrospective documental research based on institutional registries, through data collection from physical and eletronic patient records of HUUFMA's ambulatorial internal system. Results: The analysed reoperation rates were in about 7,31%. 89 patients under 15-year-old (72,35%), 23 patients aged between 15 to 30 (18,69%), and 11 patients over the age of 30 (8,94%) were submitted to surgery, with total number of 123 patients and mean age of 10,32 years. Female patients have prevailed in the population (58,53%). Conclusion: Esotropic deviation was the most common deviation in the reoperated group. The unexpected results and greatest deviations occurred on patients with reported comorbidities and/or syndromes associated with strabismus, such as dissociated horizontal deviation (DHD), which was prevalent among the presented complaints. General anesthesia was most reported in lower age patients. The average time elapsed between the first and the second procedure was 10,54 months, and a relative prevalence of the undercorrections occurred on reoperations procedures.

Late follow-up of patients submitted to total cavopulmonary derivation: clinical aspects, reinterventions, and complications interfering in morbidity

Abstract Objective: To identify main complications in outpatient follow-up, as well as factors before or during operation that may interfere in patient's evolution. Methods: Retrospective study of patients submitted to total cavopulmonary shunt with extracardiac conduit from 2000 to 2014 at the Hospital do Coração (São Paulo, Brazil) and who underwent clinical follow-up at this institution. Results: One hundred and fifty surgeries were performed and 59 patients maintained outpatient follow-up. The mean age of these patients at the time of surgery was 4.45 years (median of 45 months) and 70.2% of them were males. Among the patients undergoing outpatient follow-up, postoperative time at evaluation ranged from 10 days to 145 months; 30 (50.8%) patients had single left ventricle and 29 (49.2%) had single right ventricle (48.2% of these presented with hypoplastic left heart syndrome [HLHS]). Patients with single left ventricle had a higher percentage of reintervention-free survival, but without statistically significant difference. 40% of the patients had no complications and 35% of them presented with thrombosis at some point in the follow-up period, with ventricular dysfunction being the second most frequently found complication (15% of cases), mainly among patients with single right ventricle morphology (P=0.04). Between the patients currently under follow-up, 20 (35%) of them had been evaluated by ultrasonography and had some degree of hepatic congestion and/or hepatomegaly. 16.7% of the patients with such alteration had HLHS (P=0.057). Conclusion: Except for the right ventricular morphology, no other factor has been shown to interfere in late evolution after total cavopulmonary shunt.

Reintervenciones por fracaso de la miotomía de Heller por acalasia esofágica / Reintervention after failed Heller myotomy for esophageal achalasia

Introducción: la cardiomiotomía de Heller asociada al proceder antirreflujo descrito por Dor constituye el tratamiento de elección en los pacientes con acalasia esofágica; sin embargo, las causas del fracaso del tratamiento aún son controversiales. Objetivo: describir las causas del fracaso de la miotomía de Heller en pacientes operados por acalasia esofágica y la evolución clínica de los pacientes reintervenidos. Métodos: se realizó un estudio descriptivo, retrospectivo y longitudinal de una serie de pacientes reintervenidos por fracaso de la miotomía de Heller en el Centro Nacional de Cirugía de Mínimo Acceso desde enero de 2010 hasta diciembre de 2016. Resultados: se les realizó miotomía de Heller a 253 pacientes con diagnóstico de acalasia esofágica. De ellos, 7 (2,7 por ciento) fueron reintervenidos por recurrencia de los síntomas, 4 (1,5 por ciento) fueron operados inicialmente en la institución y el resto fueron remitidos de otras instituciones del país. La edad media fue de 41 ± 15 años (rango 20-59). Los síntomas más frecuentes fueron la disfagia posoperatoria y la pérdida de peso (100 por ciento). El tiempo de recurrencia de los síntomas después de la primera operación fue de 6-12 meses en 4 (57 por ciento), de 12 a 18 meses en 1 (16 por ciento) y de 18 a 24 en 2 (33 por ciento) pacientes. Conclusiones: la miotomía incompleta fue la causa principal de reintervención. La remiotomia laparoscópica con o sin fundoplicatura fue la técnica quirúrgica de elección para estos pacientes los cuales tuvieron una evolución clínica excelente o buena en el posoperatorio(AU)

Introduction: Heller's cardiomyotomy associated with the antireflux procedure described by Dor is the treatment of choice in patients with esophageal achalasia. However, the causes of treatment failure are still controversial. Objective: To describe the causes of failure of Heller's myotomy in patients operated for esophageal achalasia and the clinical progress of patients who required another surgery. Methods: A descriptive, retrospective and longitudinal study was performed in a series of patients who required another surgery due to failed Heller's myotomy at the National Center for Minimally Invasive Surgery from January 2010 to December 2016. Results: Heller's myotomy was performed in 253 patients diagnosed with esophageal achalasia. Among these patients, 7 (2.7 percent) required another surgery due to the relapse of symptoms, 4 (1.5 percent) were initially operated at the institution, and the rest were referred from other institutions in the country. The average age was 41±15 years (range 20-59). The most frequent symptoms were postoperative dysphagia and weight loss (100 percent). The time of symptoms relapse after the first surgery was 6-12 months in 4 patients (57 percent), 12-18 months in 1 (16 percent) and 18-24 months in 2 (33 percent) patients. Conclusions: Incomplete myotomy was the main cause of reintervention, laparoscopic myotomy with or without fundoplication being the surgical technique of choice for these patients, who had an excellent or good postoperative clinical evolution(AU)

Does aortic valve repair in valve-sparing aortic root reconstruction compromise the longevity of the procedure?

OBJECTIVES: The effect of performing aortic valve repair in combination with valve-sparing operation on the length of time for which patients are free from reoperation is unclear. The objective of this study was to determine if the performance of aortic valve repair during valve-sparing operation modified the freedom from reoperation time. METHODS: From January 2003 to July 2014, 78 patients with a mean age of 49±15 years underwent valve-sparing operation. Sixty-eight percent of these patients were male. Twenty-two (28%) aortic valve repair procedures were performed in this patient population. In the aortic valve repair + valve-sparing operation group, 77.3% of patients had moderate/severe aortic insufficiency, while in the valve-sparing operation group, 58.6% of patients had moderate/severe aortic insufficiency (ns = not significant). Additionally, 13.6% of patients in the aortic valve repair + valve-sparing operation group had functional class III/IV, while 14.2% of patients in the valve-sparing operation group had functional class III/IV (ns). RESULTS: The in-hospital and late mortality rates, for the aortic valve repair + valve-sparing operation and valve-sparing operation groups were similar, as they were 4.5% and 3.6%; and 0% and 1.8%, respectively. In the aortic valve repair + valve-sparing operation group, 0% of patients presented moderate/severe aortic insufficiency during late follow-up, while in the valve-sparing operation group, 14.2% of patients presented with moderate/severe aortic insufficiency during this period (ns). In the aortic valve repair + valve-sparing operation group, 5.3% of patients presented with functional class III/IV, while in the valve-sparing operation group, 4.2% of patients presented with functional class III/IV (ns). In the aortic valve repair + valve-sparing operation group, 0% of patients required reoperation, while in the valve-sparing operation group, 3.6% of patients required reoperation over a mean follow-up period of 1621±1156 days (75 patients). CONCLUSION: Valve-sparing operation is a safe and long-lasting procedure and performance of aortic valve repair when necessary does not increase risk of reoperation on the aortic valve.

Complications after Surgical Procedures in Patients with Cardiac Implantable Electronic Devices: Results of a Prospective Registry / Complicações após Procedimentos Cirúrgicos em Portadores de Dispositivos Cardíacos Eletrônicos Implantáveis: Resultados de um Registro Prospectivo

Abstract Background: Complications after surgical procedures in patients with cardiac implantable electronic devices (CIED) are an emerging problem due to an increasing number of such procedures and aging of the population, which consequently increases the frequency of comorbidities. Objective: To identify the rates of postoperative complications, mortality, and hospital readmissions, and evaluate the risk factors for the occurrence of these events. Methods: Prospective and unicentric study that included all individuals undergoing CIED surgical procedures from February to August 2011. The patients were distributed by type of procedure into the following groups: initial implantations (cohort 1), generator exchange (cohort 2), and lead-related procedures (cohort 3). The outcomes were evaluated by an independent committee. Univariate and multivariate analyses assessed the risk factors, and the Kaplan-Meier method was used for survival analysis. Results: A total of 713 patients were included in the study and distributed as follows: 333 in cohort 1, 304 in cohort 2, and 76 in cohort 3. Postoperative complications were detected in 7.5%, 1.6%, and 11.8% of the patients in cohorts 1, 2, and 3, respectively (p = 0.014). During a 6-month follow-up, there were 58 (8.1%) deaths and 75 (10.5%) hospital readmissions. Predictors of hospital readmission included the use of implantable cardioverter-defibrillators (odds ratio [OR] = 4.2), functional class III­-IV (OR = 1.8), and warfarin administration (OR = 1.9). Predictors of mortality included age over 80 years (OR = 2.4), ventricular dysfunction (OR = 2.2), functional class III-IV (OR = 3.3), and warfarin administration (OR = 2.3). Conclusions: Postoperative complications, hospital readmissions, and deaths occurred frequently and were strongly related to the type of procedure performed, type of CIED, and severity of the patient's underlying heart disease.

Resumo Fundamento: Complicações após procedimentos cirúrgicos em portadores de dispositivos cardíacos eletrônicos implantáveis (DCEI) são um problema emergente devido ao aumento crescente na taxa destes procedimentos e ao envelhecimento da população, com consequente aumento de comorbidades. Objetivos: Identificar as taxas de complicações pós-operatórias, mortalidade e readmissão hospitalar, e pesquisar fatores de risco para a ocorrência desses eventos. Métodos: Registro prospectivo e unicêntrico que incluiu todos os indivíduos submetidos a procedimentos cirúrgicos em DCEI no período de fevereiro a agosto de 2011. Os pacientes foram distribuídos por tipos de procedimento nos seguintes grupos: implantes iniciais (coorte 1), troca de gerador (coorte 2) e procedimentos em cabos-eletrodos (coorte 3). Os desfechos foram avaliados por um comitê independente. Empregou-se a análise univariada e multivariada para a pesquisa de fatores de risco e o método de Kaplan-Meier para análise de sobrevida. Resultados: Foram incluídos 713 pacientes, sendo 333, 304 e 76 distribuídos nas coortes 1, 2 e 3, respectivamente. Complicações pós-operatórias foram detectadas em 7,5%, 1,6% e 11,8% dos pacientes nas coortes 1, 2 e 3, respectivamente (p = 0,014). Durante os 6 meses de seguimento, houve 58 (8,1%) óbitos e 75 (10,5%) readmissões hospitalares. Preditores de readmissão hospitalar incluíram o uso de cardioversor-desfibrilador implantável ( odds ratio [OR] = 4,2), classe funcional III-IV (OR = 1,8) e uso de warfarina (OR = 1,9). Preditores de mortalidade incluíram idade acima de 80 anos (OR = 2,4), disfunção ventricular (OR = 2,2), classe funcional III-IV (OR = 3,3) e uso de warfarina (OR = 2,3). Conclusões: Complicações pós-operatórias, readmissões hospitalares e óbitos foram frequentes. Esses eventos estiveram fortemente relacionados ao tipo de procedimento realizado, tipo de DCEI e gravidade da doença cardíaca do paciente.

Endovascular treatment of internal iliac artery aneurysms: single center experience

Abstract Objective: Internal iliac artery aneurysms (IIAA) are rare, representing only 0.3% of aortoiliac aneurysms. Its treatment with open surgery is complex and associated with high morbidity and mortality, which led to increasing application of endovascular solutions. In this study, we aimed to evaluate outcomes of endovascular aneurysm repair (EVAR) of IIAA in one institution. Methods: We retrospectively reviewed all cases of IIAA treated with endovascular techniques between 2003 and 2014. Endpoints were morbidity, mortality, freedom from pelvic ischemic symptoms (buttock claudication, ischemic colitis, and spinal cord injury), and need for reintervention. Results: There were 16 patients, 13 males and 3 females, with mean age of 75.1±7 years. A total of 20 IIAA (4 cases were bilateral), with mean diameter of 37.9 mm, were treated. EVAR was performed in 13 (81.3%) patients, with associated internal iliac artery's outflow occlusion in 2. Iliac branch device was used in one patient. Two patients underwent endovascular IIAA embolization alone. One patient underwent percutaneous, transgluteal, IIAA embolization. IIAA flow preservation in at least one internal iliac artery was possible in 9 (56.3%) patients. Early mortality was 7% (1 case). Early morbidity was 18.8%. Pelvic ischemic complications occurred in 1 (7%) patient with buttock claudication. Late reintervention was needed in 3 patients, none of them for IIAA related complications. Conclusion: Endovascular treatment of IIAA is technically feasible and durable. Although overall morbidity is relatively high, major complications are infrequent and perioperative mortality is low. internal iliac artery flow preservation is technically challenging and, in a significant number of cases, not possible at all.

Performance of the fixed pressure valve with antisiphon device SPHERA® in the treatment of normal pressure hydrocephalus and prevention of overdrainage / Efeito da válvula de pressão fixa com antisifão SPHERA®no tratamento da hidrocefalia de pressão normal e prevenção de hiperdrenagem

ABSTRACT Normal pressure hydrocephalus (NPH) is characterized by the triad of gait apraxia, dementia and urinary incontinence associated with ventriculomegaly and normal pressure of cerebrospinal fluid. Treatment is accomplished through the implantation of a ventricular shunt (VPS), however some complications are still frequent, like overdrainage due to siphon effect. This study analyses the performance of a valve with anti-siphon device (SPHERA®) in the treatment of patients with NPH and compares it with another group of patients with NPH who underwent the same procedure without anti-siphon mechanism (PS Medical® valve). 30 patients were consecutively enrolled in two groups with 15 patients each and followed clinically and radiologically for 1 year. Patients submitted to VPS with SPHERA® valve had the same clinical improvement as patients submitted to VPS with PS Medical®. However, complications and symptomatology due to overdrainage were significantly lower in SPHERA® group, suggesting it as a safe tool to treat NPH.

RESUMO A hidrocefalia de pressão normal (HPN) é caracterizada pela tríade de sintomas de apraxia de marcha, demência e incontinência urinária. O tratamento padrão é realizado através de implantação de derivação ventricular, porém várias complicações são frequentes, como a hiperdrenagem secundária ao efeito sifão. Este estudo avaliou o resultado da válvula SPHERA® no tratamento desses pacientes em comparação com um grupo controle (PS Medical®). 30 pacientes foram consecutivamente alocados em dois grupos de 15 e seguidos por 1 ano. Pacientes com a válvula SPHERA® tiveram o mesmo grau de melhora clínica em comparação ao grupo controle, no entanto as complicações diagnósticadas e sintomatologia secundária à hiperdrenagem foi significativamente inferior no grupo da válvula SPHERA® group, sugerindo-a como uma ferramenta segura e aplicável.

Negative Biopsy after Referral for Biopsy-Proven Gastric Cancer

BACKGROUND/AIMS: Repeat endoscopy with biopsy is often performed in patients with previously diagnosed gastric cancer to determine further treatment plans. However, biopsy results may differ from the original pathologic report. We reviewed patients who had a negative biopsy after referral for gastric cancer. METHODS: A total of 116 patients with negative biopsy results after referral for biopsy-proven gastric cancer were enrolled. Outside pathology slides were reviewed. Images of the first and second endoscopic examinations were reviewed. We reviewed the clinical history from referral to the final treatment. RESULTS: Eighty-eight patients (76%) arrived with information about the lesion from the referring physician. Among 96 patients with available outside slides, the rate of interobserver variation was 24%. Endoscopy was repeated at our institution; 85 patients (73%) were found to have definite lesions, whereas 31 patients (27%) had indeterminate lesions. In the group with definite lesions, 71% of the lesions were depressed in shape. The most common cause of a negative biopsy was mistargeting. In the group with indeterminate lesions, 94% had insufficient information. All patients with adequate follow-up were successfully treated based on the findings in the follow-up endoscopy. CONCLUSIONS: A negative biopsy after referral for biopsy-proven gastric cancer is mainly caused by mistargeting and insufficient information during the referral.

Morbilidad postoperatoria en pacientes con hidatidosis hepática complicada / Post surgery morbidity in patients with complicated hepatic hydatidosis

Introduction: Hepatic echinococcosis (HE) surgery is common in southern's Chile hospitals; however, related publications are scarce and with conflicting results, especially with regard to postoperative morbidity (POM), due to the diversity in it severity. The aim of this study is to determine POM in patients undergoing surgery for complicated HE (CHE). Material and Methods: Case series part of a prospective cohort. Patients undergoing surgery for CHH in hospitals Hernán Henríquez Aravena hospital and Clínica Mayor of Temuco, between 2000 and 2012 were included. The main outcome variable was development of POM using the Clavien scale. Other variables of interest were hospital stay, mortality and recurrence. Descriptive statistics were applied and incidence of POM was determined. Results: 73 patients with a median age of 41 years and 58.9% female were studied. The median ultrasound diameter cysts were 15.0 cm. The average surgical time was 125.4 ± 26.3 min. The surgical procedure used most often was the pericystectomy (84.9%); and 84.9% of cases was performed concomitantly some other surgical procedure. The incidence of POM was 19.2%, 78.6% of whose cases were Grade I or II Clavien. The aetiology was 10.9% of medical complications and 8.2% of surgical complications. 1.4% of mortality was recorded; and with a median follow up of 97 months, no recurrence was verified. Conclusions: POM in a cohort of patients with CHE is lower than the published and low severity. Subgroups with higher POM were: patients with coexistence of more than one complication, those with colangiohydatidosis and patients with liver abscess of hydatid origin.

Introducción: La cirugía de la hidatidosis hepática (HH) es habitual en hospitales del sur de Chile; sin embargo, las publicaciones relacionadas son escasas y sus resultados disímiles, en especial respecto de la morbilidad postoperatoria (MPO), debido a la diversidad en la gravedad. El objetivo de este estudio es determinar la incidencia de MPO en pacientes intervenidos quirúrgicamente por HH complicada. Material y Método: Serie de casos, parte de una cohorte prospectiva. Se incluyeron pacientes intervenidos quirúrgicamente por HH complicada, en el hospital Hernán Henríquez Aravena y en la Clínica Mayor de Temuco, entre 2000 y 2012. La variable resultado principal fue desarrollo de MPO aplicando la escala de Clavien. Otras variables de interés fueron estancia hospitalaria, mortalidad y recurrencia. Se aplicó estadística descriptiva y, se determinó incidencia de MPO. Resultados: 73 pacientes, con mediana de edad de 41 años (16 a 84 años); 58,9% de género femenino. La mediana del diámetro ultrasonográfico de los quistes fue de 15,0 cm. El tiempo quirúrgico promedio fue de 125,4 ± 26,3 min. El procedimiento quirúrgico utilizado con mayor frecuencia fue periquistectomía (84,9%); y en 84,9% de los casos se realizó de forma concomitante algún otro procedimiento quirúrgico. La incidencia de MPO fue 19,2% (10,9% de tratamiento médico y 8,2% de tratamiento quirúrgico); 78,6% de cuyos casos eran Grado I o II de Clavien. Se registró 1,4% de mortalidad; y con una mediana de seguimiento de 97 meses, no se verificó recurrencia. Conclusiones: La incidencia de MPO en pacientes con HH complicada es inferior a la publicada y de bajo nivel de gravedad. Los subgrupos de complicaciones evolutivas con mayor MPO fueron la co-existencia de más de una complicación, la colangiohidatidosis y el absceso hepático de origen hidatídico.

Implications of a two-step procedure in surgical management of patients with early-stage endometrioid endometrial cancer / 부인종양

OBJECTIVE: Since European Society for Medical Oncology (ESMO) recommendations and French guidelines, pelvic lymphadenectomy should not be systematically performed for women with early-stage endometrioid endometrial cancer (EEC) preoperatively assessed at presumed low- or intermediate-risk. The aim of our study was to evaluate the change of our surgical practices after ESMO recommendations, and to evaluate the rate and morbidity of second surgical procedure in case of understaging after the first surgery. METHODS: This retrospective single-center study included women with EEC preoperatively assessed at presumed low- or intermediate-risk who had surgery between 2006 and 2013. Two periods were defined the times before and after ESMO recommendations. Demographics characteristics, surgical management, operative morbidity, and rate of understaging were compared. The rate of second surgical procedure required for lymph node resection during the second period and its morbidity were also studied. RESULTS: Sixty-one and sixty-two patients were operated for EEC preoperatively assessed at presumed low-or intermediate-risk before and after ESMO recommendations, respectively. Although immediate pelvic lymphadenectomy was performed more frequently during the first period than the second period (88.5% vs. 19.4%; p<0.001), the rate of postoperative risk-elevating or upstaging were comparable between the two periods (31.1% vs. 27.4%; p=0.71). Among the patients requiring second surgical procedure during the second period (21.0%), 30.8% did not undergo the second surgery due to their comorbidity or old age. For the patients who underwent second surgical procedure, mean operative time of the second procedure was 246.1+/-117.8 minutes. Third operation was required in 33.3% of them because of postoperative complications. CONCLUSION: Since ESMO recommendations, second surgical procedure for lymph node resection is often required for women with EEC presumed at low- or intermediate-risk. This reoperation is not always performed due to age/comorbidity of the patients, and presents a significant morbidity.

Delta Reverse Polarity Shoulder Replacement: Single Surgeon Experience with a Minimum 2-Year Follow-up

BACKGROUND: The delta reverse shoulder replacement system was developed for the treatment of rotator cuff arthropathy so that the deltoid can substitute for the deficient rotator cuff. To evaluate the results of delta reverse shoulder replacement for functional improvement and complications in a consecutive series by a single surgeon over a period of six years with a minimum follow-up of 2 years. METHODS: The data were collected retrospectively from electronic theatre records. Over a period of 6 years (2006-2012), 46 cases that fulfilled the inclusion criteria were identified. There were 34 females and 12 males. The average age of patients was 76.2 years (range, 58 to 87 years). A single surgeon performed all procedures using the anterosuperior approach. The mean follow-up time was 49 months (range, 24 to 91 months). All cases had preoperative and postoperative Constant scores. We collected the data on indications, hospital stay, and change in the Constant score, complications, and reoperation rates. RESULTS: The main indication for surgery was rotator cuff arthropathy (52.2%), followed by massive rotator cuff tear (28.3%), osteoarthritis (8.7%), fractures (6.5%), and rheumatoid arthritis (4.3%). Also, 65.2% of the cases were referred by general practitioners, 26% of the cases were referred by other consultants, and 8.8% of the cases were already under the care of a shoulder surgeon. The average preoperative Constant score was 23.5 (range, 8 to 59). The average Constant score at the final follow-up was 56 (range, 22 to 83). On average, there was an improvement of 33 points in the Constant score. The improvement in the Constant score was significant (p < 0.001). We observed complications in four patients (8.6%). Three of four patients (6.5%) needed reoperation. The first complication was pulmonary embolism in the early postoperative period. The other complications included dissociation of the glenosphere from the metaglene, deltoid detachment, and stitch abscess. CONCLUSIONS: This is a single-surgeon, single-approach series of 46 cases with a minimum follow-up of 2 years. At this stage, the results are encouraging with no cases of loosening, dislocation, or nerve injury.

Reoperaciones posadenoidectomía por hiperplasia adenoidea obstructiva / Post-adenoidectomy reoperations due to obstructive adenoid hyperplasia

Introducción: La incidencia de reoperación posadenoidectomía, ya sea una segunda adenoidectomía o una amigdalectomía, no es conocida en nuestro medio. Publicaciones extranjeras muestran 2% de readenoidectomías y 8% de amigdalectomías posteriores. Objetivo: Describir las adenoidectomías efectuadas en nuestro centro, evaluar la prevalencia de reoperaciones y buscar posibles factores asociados a éstas. Material y método: Estudio retrospectivo descriptivo y analítico. Se revisaron fichas de pacientes adenoidectomizados por roncopatía con pausas respiratorias entre enero de 1999 y diciembre 2010. Se registraron datos demográficos, controles y nasofaringolaringoscopías (NFL). Se consignaron las reoperaciones (readenoidectomías y amigdalectomías). Resultados: Se revisaron 106 fichas. Un 55,7% de los pacientes eran hombres. A la NFL, 42% de los pacientes tenían adenoides grado 3y 58% grado 4 de Parikh. Un 5,6% de los pacientes fueron reoperados (1 adenoidectomía y 5 adenoamigdalectomías). Se observó diferencia significativa en edad (p =0,04) y tamaño amigdalino (p =0,004) entre los reoperados y lo no reoperados. No hubo asociación por sexo (p =0,45), asma (p =0,31) ni rinitis (p =0,18). Sin embargo, a la regresión logística multivariada, ninguna variable se asoció significativamente de manera independiente con la necesidad de reoperación. Conclusión: La prevalencia de reoperaciones fue similar a la publicada, no encontrándose asociación con otros factores.

Introduction: The incidence of post-adenoidectomy reoperation, be it a second adenoidectomy or a tonsillectomy, is unknown within our environment. Foreign publications show a 2% of re-adenoidectomies and an 8% of ulterior tonsillectomies. Aim: To describe the adenoidectomies performed at our center, to assess the prevalence of reoperations, and to seek possible associated factors to the latter. Material y method: Descriptive and analytical retrospective assessment. A review was performed of records for patients that between January of 1999 and December of 2010 underwent adenoidectomy on account of snoring pathology. Demographics, controls, nasopharyngolaryngoscopies and reoperations (re-adenoidectomies and tonsillectomies) were recorded. Results: The review entailed checking 106 records. 55,7% of patients were men. 42% of patients had Parikh?s Grade III adenoids and 58% showed Grade IV ones. 5,6% of patients underwent reoperation. A significant difference could be observed in age (p=0,04) and tonsillar size (p=0,004) between those that had and had not undergone reoperation. There was no gender association (p=0,45), neither for asthma (p=0,31) or rhinitis (p=0,18). Yet, by multivariate logistic regression, no variable was significantly associated by itself to the need for reoperation. Conclusion: Reoperation prevalence was similar to that published, and no association to other factors was discovered.

Espondilolistesis lumbar degenerativa de un solo segmento tratada con espaciador interespinoso / Single-segment degenerative lumbar spondylolisthesis treated with an interspinous spacer

Antecedentes: El término de espondilolistesis degenerativa acuñado por Newman en 1963, es el deslizamiento hacia adelante de una vértebra inmediatamente inferior sin lisis ístmica. Se observa predominantemente en personas mayores de 40 años, con un predominio de 4:1 del sexo femenino, teniendo una prevalencia de 7.5% en hombres y 28% en mujeres, respectivamente en pacientes con lumbalgia mayores a 50 años. Material y métodos: Evaluar a un año el resultado del uso de espaciadores dinámicos en listesis grado 1 de Meyerding utilizando la escala de incapacidad de Oswestry. Se revisa el historial electrónico y radiográfico de los pacientes según los criterios en el período de Enero 2008 a Diciembre 2010 con el propósito de realizar un estudio de cohortes, retrospectivo, longitudinal y observacional. Resultados: El Oswestry prequirúrgico fue de 3.4% leve, 55.2% moderado y 41.4% severo; mientras que el postquirúrgico fue de 79.3% leve y 20.7% moderado. La cirugía más comúnmente realizada fue exploración y liberación con 72.4%, presentando discectomía únicamente en 27.6%. Los pacientes presentaron dolor irradiado a miembro pélvico derecho en 37.9%, miembro pélvico izquierdo en 44.8% y a ambos miembros pélvicos en 17.2%. Se presentó dolor postquirúrgico irradiado a miembro pélvico únicamente en 2.4%, siendo que en 100% de los casos presentaron algún tipo de dolor irradiado. Se utilizó espaciador DIAM en 79.3% y Wallis en 20.7%. Conclusiones: El tratamiento con espaciador interespinoso presenta un bajo índice de reintervención y, por lo menos a un año, presenta mejoría significativa en el índice de incapacidad.

Background: The term degenerative spondylolisthesis, coined by Newman in 1963, refers to the forward slippage of an immediately inferior vertebra without isthmic lysis. It occurs predominantly in individuals over 40 years of age and affects mainly women, with a female:male ratio of 4:1. Prevalence is 7.5% in males and 28% in females among patients over 50 years of age with low back pain. Material and methods: Assess the one-year results of the use of dynamic spacers for Meyerding grade 1 listhesis with the Oswestry disability scale. The patient's electronic and radiographic records from January 2008 to December 2010 were reviewed according to different criteria to conduct a retrospective, longitudinal and observational cohort study. Results: The preoperative Oswestry score was 3.4% mild, 55.2% moderate, and 42.4% severe; the postoperative score was 79.3% mild and 20.7% moderate. The most common surgical procedure was exploration and release in 72.4% of patients; only 27.6% underwent diskectomy. Pain irradiating to the right pelvic limb occurred in 37.9% of patients, to the left pelvic limb in 44.8%, and to both pelvic limbs in 17.2%. Only 2.4% of patients experienced postoperative pain that irradiated to the pelvic limb, as 100% of cases had some type of irradiating pain. A DIAM spacer was used in 79.3% and a Wallis device in 20.7%. Conclusions: Treatment with an interspinous spacer results in a low reoperation rate and, at least one year later, it resulted in a significant improvement in the disability rate.