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El tratamiento quirúrgico de la equinococosis quística hepática se asocia (entre otras), con una tasa de recurrencia actual de hasta 27%, aunque es infrecuente la recurrencia después de la exéresis total de un quiste intacto. Por lo general, la recurrencia ocurre producto del derrame de estructuras parasitarias vivas a alguna cavidad, o de dejar residuos de germinal, vesículas hijas o protoescólices durante la cirugía. La recurrencia suele ser asintomática, por lo que el diagnóstico depende, casi exclusivamente, de un seguimiento riguroso y prolongado en el tiempo, con controles clínicos, determinaciones serológicas, e imágenes. El tratamiento puede incluir el uso de albendazol, asociado a técnicas de radiología intervencionista o cirugía. El objetivo de este manuscrito fue generar un documento de lectura referente a la recurrencia de la equinococosis quística hepática.

Surgical treatment of hepatic cystic echinococcosis is associated (among others), with a current recurrence rate of up to 27%; although recurrence after total resection of an intact cyst is rare. In general, recurrence occurs as a result of the spillage of living parasitic structures into a cavity, or of leaving germinal residues, daughter vesicles, or protoscolices during surgery. Recurrence is usually asymptomatic, so the diagnosis depends almost exclusively on a rigorous and prolonged follow-up, with clinical controls, serological determinations, and images. Treatment may include the use of albendazole, followed by interventional radiology techniques or surgery. The aim of this manuscript was to generate a reading document regarding the recurrence of hepatic cystic echinococcosis.

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El Paraguay integra la Iniciativa Sudamericana para el Control y Vigilancia de Equinococosis Quística. Con el fin de optimizar los informes epidemiológicos sobre hidatidosis, presentamos tres casos clínicos vistos en centros nacionales y realizamos una revisión de la literatura local sobre el tópico. Desde 1969 hasta la fecha se describen 70 casos de equinococosis quística. Se requieren estudios epidemiológicos sistemáticos para evaluar el grado de penetración, la distribución geográfica y las características de transmisión de esta enfermedad en nuestro país.

Paraguay is a member of the South American Initiative for the Control and Surveillance of Cystic Echinococcosis. In order to optimize the epidemiological reports on hydatidosis, we present three clinical cases seen in national centers and we carry out a review of the local literature on the topic. From 1969 to date, 70 cases of cystic echinococcosis have been described. Systematic epidemiological studies are required to assess the degree of penetration, geographic distribution, and transmission characteristics of this disease in our country.

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Primary splenic hydatid cyst is a rare entity even in endemic areas. In most cases it presents asymptomatically being diagnosed by imaging findings. Treatment is multimodal and individualized, being surgical treatment the one that allows an integral solution of the disease. Conventional surgery continues to be the "Gold standard" in its approach. We present the case of a patient with this condition and the resolution approached by the surgical team.

O cisto hidatides esplénico primário é uma entidade rara mesmo em áreas endémicas. Na maioria dos casos apresenta-se de forma assintomática, sendo diagnosticada através de resultados de imagem. O tratamento é multimodal e individualizado, com um tratamento cirúrgico que proporciona uma solução abrangente para a condição. A cirurgia convencional continua a ser a abordagem "padrão de ouro". Apresentamos o caso de um paciente com esta condição e a resolução abordada pela equipa cirúrgica.

El quiste hidático primario esplénico es una entidad poco frecuente aún en áreas endémicas. Se presenta en la mayoría de los casos de forma asintomática, siendo diagnosticado por hallazgo imagenológico. El tratamiento es multimodal e individualizado, siendo el tratamiento quirúrgico el que permite una solución integral de la dolencia. La cirugía convencional sigue siendo el "Gold estándar" en su abordaje. Presentamos el caso de una paciente con esta afección y la resolución abordada por el equipo de cirugía.

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RESUMEN La equinococosis quística (EQ) en niños es un problema de salud pública. Para describir las características clínicas y epidemiológicas de la EQ se revisaron los registros de 55 niños con diagnóstico confirmado de EQ admitidos entre 2017 y 2019 en un centro quirúrgico referencial del Perú. Se analizaron los datos demográficos, las manifestaciones clínicas y el tratamiento. El 61,8% (34/55) de los niños fue de sexo masculino. La edad promedio fue de 9,25 años (DE: 2,79); un 16,4% tuvo diagnóstico previo de EQ, y un 50,9% tuvo contacto con perros. La mediana de tiempo de enfermedad fue de dos meses. El 65,5% tuvo afectación hepática, el 56,4% pulmonar y el 21,8% hepática y pulmonar. Los síntomas más frecuentes fueron dolor abdominal (80,6%) y tos (80,6%). El tratamiento quirúrgico se realizó en el 87,5% de los casos con EQ hepática y en el 100% de los casos con EQ pulmonar y EQ hepática y pulmonar. Se prescribió albendazol en el 100% de casos hepáticos, en el 73,7% de casos pulmonares y en el 75% de ambas afectaciones. No se reporta mortalidad.

ABSTRACT Cystic echinococcosis (CE) in children is a public health problem. To describe the clinical and epidemiological profile of CE, we reviewed the records of 55 children admitted to our institution with a confirmed diagnosis of CE between 2017-2019, analyzing demographic data, clinical manifestations, and treatment. Of the population, 61.8% (34/55) were male. The mean age was 9.25 years (SD: 2.79); 16.4% had previous CE diagnosis, and 50.9% had contact with dogs. The median time of illness was 2 months. Of the patients, 65.5% had hepatic involvement, 56.4% had pulmonary involvement, and 21.8% had both hepatic and pulmonary involvement. The most frequent symptoms were abdominal pain (80.6%) and cough (80.6%). Surgical treatment was performed in 87.5% of patients with hepatic CE, in 100% of those with pulmonary CE and in 100% of those with hepatic and pulmonary CE. Albendazole was prescribed in 100% of hepatic cases, in 73.7% of pulmonary cases, and in 75% of those with both conditions. Mortality was not reported.

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ABSTRACT - BACKGROUND: Hydatidosis is a rare and endemic parasitic disease in Brazil that causes the proliferation of cysts mainly in the liver, leading to many complications, such as compression of vessels and biliary ducts, liver failure, portal hypertension, and cirrhosis. The treatment of choice is the resection of the lesions combined with albendazole therapy. This disease is a rare indication for liver transplantation, a feasible treatment option in more advanced stages. AIM: The purpose of this study was to describe two cases of patients from northern Brazil who underwent liver transplantation due to hepatic hydatidosis. METHODS: This is a retrospective study with data collected from medical records. RESULTS: Case 1: A 51-year-old female patient presented pain in the right hypochondriac, dyspepsia, consumptive syndrome, and obstructive jaundice, with a previous diagnosis of Caroli's disease with no possibility of surgical resection and a MELD score of 24. She underwent liver transplantation, and the anatomopathological result demonstrated hydatidosis. Case 2: A 52-year-old female patient presented multiple episodes of cholangitis in 30 years, with three liver resections and clinical treatment with albendazole for hydatidosis. She underwent liver transplantation due to recurrent cholangitis with a MELD score of 20. Both patients underwent post-transplant clinical therapy with albendazole, had good outcomes, and remain in follow-up without complications after 5 and 96 months, respectively. CONCLUSION: The patients benefited from the procedure and have a good prognosis due to the absence of metastasis, early reintroduction of antiparasitic drugs, and continuous follow-up.

RESUMO - RACIONAL: A hidatidose é uma doença parasitária rara, endêmica no Brasil, que causa a proliferação de cistos, principalmente no fígado, levando a muitas complicações, como compressão de vasos e ductos biliares, hipertensão portal e cirrose. O tratamento ideal é a ressecção cirúrgica das lesões combinada à terapia com albendazol. Essa doença é uma rara indicação para o transplante hepático, que é um possível tratamento para estágios avançados. OBJETIVO: Descrever dois casos de pacientes provenientes da região Norte do Brasil, que foram submetidos a transplante hepático por hidatidose hepática. MÉTODOS: Estudo retrospectivo com coleta de dados de prontuários. RESULTADOS: Caso 1: Paciente do sexo feminino de 51 anos, apresentava dor em hipocôndrio direito, sintomas dispépticos, síndrome consumptiva e icterícia obstrutiva, com diagnóstico inicial de doença de Caroli sem possibilidade de ressecção cirúrgica e com MELD 24. Foi submetida a transplante hepático, e o resultado anatomopatológico do explante evidenciou hidatidose. Caso 2: Paciente do sexo feminino de 52 anos, apresentava há cerca de 30 anos, múltiplos episódios de colangite, com realização de três ressecções hepáticas e tratamento clínico com albendazol para hidatidose. Foi submetida a transplante hepático por equinococose alveolar difusa, com situação especial por colangite de repetição, com MELD 20. Ambas fizeram tratamento clínico pós transplante com albendazol, apresentaram boas evoluções e permanecem em acompanhamento sem complicações após 5 e 96 meses, respectivamente. CONCLUSÃO: As pacientes se beneficiaram do procedimento e têm bom prognóstico, devido à ausência de metástases, reintrodução precoce das drogas antiparasitárias e acompanhamento contínuo.

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Infected hepatic echinococcosis (IHE), defined as a cystic infection, and the development of a liver abscess may be a complication in the natural history of hepatic echinococcosis. The aim of this study was to review the evidence available related to clinical, therapeutic, and prognostic aspects of IHE. We conducted a systematic review. Trip Database, BIREME-BVS, SciELO, LILACS, IBECS, PAHO-WHO; WoS, EMBASE, SCOPUS and PubMed were consulted. Studies related to IHE in humans, without language restriction, published between 1966 and 2020 were considered. Variables studied were publication year, geographical origin of the samples, number of patients, therapeutic and prognosis aspects, and methodological quality (MQ) for each article. Descriptive statistics was applied. Subsequently, weighted averages (WA) of the MQ of each article were calculated for each variable of interest. 960 related articles were identified; 47 fulfilled selection criteria, including 486 patients with a median age of 48 years, 51.6% being male. The largest proportion of articles were from Spain, India, and Greece (36.1%). Mean cyst diameter was 14.1 cm, and main location was right liver lobe (74.0%). WA for morbidity, mortality, hospital stay, and follow-up were 28.5%, 7.4%, 8.5 days and 14.8 months, respectively. The most common causative microorganisms of superinfection isolated were Enterobacteriaceae. An association with cholangitis was reported in 13.4% of cases. Mean MQ of the 47 articles included was 7.6 points. We can conclude that the information related to IHE is scarce and scattered throughout articles of small casuistry and poor quality, and consequently does not provide strong evidence.

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Introducción: Nuestro país tiene una alta tasa de prevalencia de quiste hidatídico. El presente estudiofue realizado en un centro de referencia nacional y es el primer estudio peruano en comparar losresultados clínicos y económicos de las técnicas quirúrgicas para el tratamiento de esta enfermedad.Objetivo: Comparar los resultados clínicos y económicos de la cirugía laparoscópica y la cirugía abiertaen el tratamiento del quiste hidatídico hepático. Métodos: Estudio analítico y transversal. Se revisaron lashistorias clínicas de todos los pacientes adultos con quiste hidatídico hepático operados de quistectomíaparcial abierta y laparoscópica desde enero del 2013 a diciembre del 2015. Se evaluaron y compararonmorbilidad, mortalidad, recurrencia, tiempo operatorio, estancia hospitalaria, dolor, descanso médicopostoperatorio y costos. Resultados: 22 pacientes fueron operados de quistectomía parcial abierta (grupo1) y 13 por laparoscopia (grupo 2). No hubo diferencias en los tiempos operatorios, ni en las complicacionesquirúrgicas, siendo la morbilidad postoperatoria 27,3% (grupo 1) y 30,7% (grupo 2). La tasa de conversiónfue de 18,7%. No hubo casos de mortalidad intrahospitalaria y un caso de recurrencia (4,5%) postcirugíaabierta. No se encontraron diferencias significativas entre el costo intraoperatorio, postoperatorio y total. Sibien el costo total promedio fue menor para la cirugía laparoscópica (1 700,99 ± 1 195,82 USD para la abiertay 1 561,83 ± 702,53 USD para la laparoscópica) no tuvo diferencias significativas (p=0,64). Hubo menor dolorpostoperatorio, menor estancia hospitalaria y menor duración del descanso médico para la laparoscópica(p<0,05). Conclusión: Los resultados clínicos y económicos fueron similares; sin embargo, hubo menordolor post-operatorio, estancia hospitalaria y más rápida reinserción laboral con cirugía laparoscópica.

Introduction: Our country has a high prevalence rate of hydatid cyst. The present study, was performed ina national reference center, and it is the first Peruvian study to compare the clinical and economic resultsof surgical techniques for the treatment of this disease. Objective: To compare the clinical and economicresults for laparoscopic surgery and open surgery in the treatment of hepatic hydatid cyst. Methods: Themedical records of all patients who underwent open partial cystectomy and laparoscopic partial cystectomy(2013-2015) were retrospectively reviewed. Morbidity, mortality, recurrence, operative time, length ofhospital stay, postoperative pain, and medical rest were evaluated. The costs per patient were found usingthe ABC costing system. Results: 22 patients were underwent open partial cystectomy (group 1) and 13underwent laparoscopic (group 2). There weren ́t differences in operative time, surgical complications, withpostoperative morbidity of 27.3% (group 1) and 30.7% (group 2). The conversion rate was 18.7%. There weren ́tcases of in hospital-mortality and one case of recurrence (4.5%) post open surgery. There weren ́t differencesbetween operative, postoperative and overall cost. Although the overall cost was lower for laparoscopicsurgery (1 700.99 ± 1 195.82 USD for group 1 and 1 561.83 ± 702.53 USD for group 2) but without significantdifferences (p = 0.64). There was less postoperative pain, shorter hospital stay and duration of medical rest (p<0.05). Conclusion: The clinical and economic results were similar for both types of surgery; However, therewas less post-operative pain, hospital stay, and quicker reintegration into working life for patients operatedby laparoscopic surgery.Key words: Echinococcosis

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Although infrequent in the diagnostics areas, liver abscesses are of significant relevance, which is related to the high morbidity and mortality figures they can cause if they are not detected and treated in time. Although multiple operational classifications are described, the one most recognized for its usefulness is that related to its causative agent (pyogenic or bacterial infection, hydatid origin or secondary to infected hydatidosis, and amoebic or by invasive amebiasis). The objective of this article was to generate a study report regarding the morphological characteristics of liver abscesses, characterizing them according to their etiology, as well as describing their study and the latest recommended treatments.

Los abscesos hepáticos son entidades nosológicas de baja frecuencia, pero de significativa relevancia, la que se relacionada con las elevadas cifras de morbilidad y mortalidad que pueden causar si no son detectados y tratados a tiempo. Si bien se describen múltiples clasificaciones operacionales, aquella más reconocida por su utilidad es la relacionada a su agente causal (piógenos o bacterianos, hidatídicos o secundarios a hidatidosis infectada, y amebianos o por amebiasis invasora). El objetivo de este artículo fue generar un documento de estudio respecto de las características morfológicas de los abscesos hepáticos, caracterizándolos de acuerdo con su etiología, así como describir su estudio y tratamiento recomendado de acuerdo con el estado del arte.

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Hepatic echinococcosis (HE) is a prevalent health problem, and there is limited published information regarding HE surgery. On the other hand, postoperative morbidity (POM) has not varied significantly. The aim of this study was to describe early and late outcomes in terms of POM of a series of patients with non-complicated liver hydatid cysts (NLHC) treated surgically. Prospective cohort. We included patients undergoing surgery for NLHC in the Hospital Regional and Clínica in Temuco, between 2000 and 2015. The main outcome variable was the development of early and late POM. Other variables of interest were hospital stay, mortality and recurrence. Surgical techniques used were total or subtotal pericystectomy and liver resection. Percentages, measures of central tendency and dispersion, and incidence were calculated. We studied 136 patients with a median age of 41 years and 60.3 % female The median ultrasound diameter of the cysts was 15.0 cm. The median surgical time was 95 minutes. The incidence of POM was 9.6 %, 92.3 % of whose cases were Grade I or II Dindo & Clavien. The aetiology was 5.9 % and 3.7 % medical complications of surgical complications. There was no mortality and with a median follow up of 115 months, recurrence was observed in one patient, representing an incidence of 0.7 %. POM was determined in a cohort of patients with NLHC throughout an extended follow-up period, and the incidence and gravity of POM is smaller and of lower gravity than those previously published.

Siendo una equinococosis hepática (EH) un problema de salud prevalente, la información publicada respecto a la cirugía de EH no es abundante. Por otro lado, la morbilidad postoperatoria (MPO) no ha variado de forma muy significativa. El objetivo de este estudio fue describir los resultados tempranos y tardíos en términos de MPO de una serie de pacientes con quistes hidatídicos hepáticos no complicados (QHHN) tratados quirúrgicamente. Estudio de cohorte prospectiva. Se incluyeron pacientes sometidos a cirugía para QHHN en el Hospital Regional y Clínica en Temuco, entre 2000 y 2015. La variable resultado principal fue desarrollo de MPO temprana y tardía. Otras variables de interés fueron estancia hospitalaria, mortalidad y recurrencia. Las técnicas quirúrgicas utilizadas fueron periquistectomía total o subtotal y resección hepática. Se calcularon porcentajes, medidas de tendencia central y dispersión, e incidencia. Se estudiaron 136 pacientes con una mediana de edad de 41 años; 60,3 % de los cuales son mujeres. La mediana del diámetro de los quistes y del tiempo quirúrgico fue de 15,0 cm y 95 min. Respectivamente. La incidencia de MPO fue 9,6 %, de los cuales 92,3 % fueron Grado I o II de Dindo y Clavien. La etiología fue: 5,9 % de complicaciones médicas y 3,7 % de complicaciones quirúrgicas. No hubo mortalidad; y con una mediana de seguimiento de 115 meses, se determinó una incidencia de recidiva de 0,7 % (1 paciente, en el período estudiado). Se describe la MPO de una cohorte de pacientes con QHHN. La morbilidad observada es inferior a la publicada y de bajo nivel de gravedad.

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ABSTRACT Background. One of the evolutionary complications of hepatic echinococcosis (HE) is cholangiohydatidosis, a rare cause of obstructive jaundice and cholangitis. The aim of this study was to describe the results of surgical treatment on a group of patients with cholangiohydatidosis and secondary cholangitis in terms of post-operative morbidity (POM). Material and method. Case series of patients operated on for cholangiohydatidosis and cholangitis in the Department at Surgery of the Universidad de La Frontera and the Clínica Mayor in Temuco, Chile between 2004 and 2014. The minimum follow-up time was six months. The principal outcome variable was the development of POM. Other variables of interest were age, sex, cyst diameter, hematocrit, leukocytes, total bilirubin, alkaline phosphatase and transaminases, type of surgery, existence of concomitant evolutionary complications in the cyst, length of hospital stay, need for surgical re-intervention and mortality. Descriptive statistics were calculated. Results. A total of 20 patients were studied characterized by a median age of 53 years, 50.0% female and 20.0% having two or more cysts with a mean diameter of 13.3 ± 6.3 cm. A median hospital stay of six days and follow-up of 34 months was recorded. POM was 30.0%, re-intervention rate was 10.0% and mortality rate was 5.0%. Conclusion. Cholangiohydatidosis is a rare cause of obstructive jaundice and cholangitis associated with significant rates of POM and mortality.(AU)

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Objetivo: Describir las características clínicas, laboratoriales y radiológicas de pacientes con quiste hidatídico hepático tratados en el servicio de cirugía general de un hospital de referencia nacional de Lima (Perú). Materiales y métodos: Se realizó un estudio de casos, el cual incluyó a todos los pacientes con diagnóstico de quiste hidatídico hepático hospitalizados entre 1997 y 2010. Se recogieron datos sociodemográficos (edad, sexo, procedencia y actividad habitual), datos clínicos, laboratoriales, radiográficos y referidos al tratamiento. Resultados: El síntoma más frecuente fue el dolor abdominal (93,9%), en tanto que el signo más frecuente fue el incremento del span hepático (68,7%). El 86,4% de los pacientes tenían una formula leucocitaria dentro de rangos normales, la eosinofilia estuvo presente solo en el 25,9% de los casos. El lóbulo hepático derecho fue el más afectado (80%) y en el 40,8% de los pacientes se encontró afección de un solo segmento. En el 75,4% de los pacientes los quistes eran únicos. La complicaciones más frecuentes fueron: la comunicación a la vía biliar (48,9%), los abscesos hidatídicos (32,6%), la colangitis (4%) y el quiste hidatídico roto más peritonitis (4%). Conclusión: La población más afectada fueron adultos jóvenes de entre 30 a 39 años. La población estudiada reside en su mayoría en el departamento de Lima, pero provienen de departamentos en donde la hidatidosis hepática ha sido descrita como endémica. A pesar de que esta población es en su mayoría urbana, las características epidemiológicas no varían en relación a la descrita en investigaciones previas.

Objective: To describe the clinical, laboratory and radiological features of patients with hepatic hydatid cyst treated at the department of general surgery of a national referral hospital in Lima (Peru). Materials and methods: A cross-sectional study was performed, all patients diagnosed with hepatic hydatid cyst hospitalized between 1997 and 2010 were included. Sociodemographic data (age, sex, origin and usual activity), clinical, laboratory, radiographic and data referrals to treatment were collected. Results: The most common symptom was abdominal pain (93.9%), while the most frequent sign was the increase in liver span (68.7%). 86.4% of patients had a leukocyte formulated within normal ranges, eosinophilia was only present in 25.9% of cases. The right hepatic lobe was the most affected (80%) and in 40.8% of patient’s condition one segment was found. In 75.4% of patients the cysts were unique. The most frequent complications were: communication to the bile duct (48.9%), hydatid abscesses (32.6%), cholangitis (4%), hydatid cyst and broken more peritonitis (4%). Conclusion: The population more affected was young adults aged 30 to 39 years. The population studied lives mostly in the department of Lima, but come from departments where hepatic hydatid disease has been described as endemic. Although this population is mostly urban, epidemiological characteristics do not vary in relation to that described in previous research.

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Hydatidosis is common in Southern Chile and it is usually located in the liver. The complications of surgical procedures for liver hydatidosis, which fluctuate from 11 to 86 percent, are superposed to the own complications of the disease. The frequency of surgical complications is associated with evolutionary complications of the cysts, the need to perform additional procedures to treat the disease in other simultaneous locations and previous surgical interventions for the disease. Operative mortality is lower than 5 percent. The surgical treatment of hydatidosis is divided in four phases: isolation of the surgical zone, cyst evacuation, treatment of cyst complications and treatment of residual cavity. The conservative surgical procedures are marsupialization, cystostomy, Posadas intervention and cystojejunostomy. Surgical procedures involving resection are pericys-tectomy, subtotal cystectomy and liver resections. The role of laparoscopic surgery is still under evaluation.

La hidatidosis es una zoonosis endémica en el sur de Chile, por lo que tenemos la oportunidad de tratar un número importante de pacientes, especialmente hepática, localización más común de esta enfermedad. La hidatidosis hepática (HH) tiene morbilidad y mortalidad propia debido a sus complicaciones evolutivas, a lo que se agrega el riesgo de complicaciones asociados a los procedimientos quirúrgicos, cuya morbilidad se ha reportado entre 11 por ciento y 86 por ciento; la que se ha relacionado con intervenciones previas por HH, complicaciones evolutivas de los quistes, la necesidad de realizar procedimientos adicionales como el tratamiento de la enfermedad en otras localizaciones simultáneas. La mortalidad reportada es inferior al 5 por ciento. Sin embargo, tanto morbilidad como mortalidad persisten altas a pesar de los avances tecnológicos terapéuticos. El tratamiento quirúrgico de la HH se puede dividir en cuatro fases: aislamiento de la zona quirúrgica, evacuación del quiste, tratamiento de las complicaciones del quiste; y tratamiento de la cavidad residual. Por otro lado, la cirugía de la HH se puede clasificar en procedimientos conservadores (marsupialización, quistostomía, operación de Posadas y quistoyeyunostomía) y resectivos (periquistectomía, quistectomía subtotal y resecciones hepáticas). Por último, cabe señalar el rol de la cirugía laparoscópica, que aún se encuentran en evaluación.

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Background: Surgery for hepatic hydatidosis is common in Southern Chile and it is important to know the rates of complications of the procedure. Aim: To report the rates of postoperative complications in patients operated for uncomplicated hepatic hydatidosis. Material and Methods: Prospective study of patients operated for uncomplicated hepatic hydatidosis between 1997 and 2008. The surgical techniques employed were total or partial peri cystectomies, or hepatic resection. Results: One hundred sixteen patients aged 43 +/- 17 years, 60 percent females, were included in the series. Median cyst diameter was 15 cm. Ten patients (8.6 percent) had complications. Three patients had an atelectasis, two had an acute bronchitis, one had a urinary tract infection, two had surgical wound infections, one developed a residual cavity and one had an eventration. During a median follow up of 95 months, no patient died and one had a recurrence of the disease. Conclusions: Surgery for uncomplicated hydatidosis has a low rate of complications.

Introducción: La cirugía de la hidatidosis hepática (HH) es habitual en hospitales del sur de Chile. El número de publicaciones relacionadas es escasa y los resultados disímiles. Hablar de morbilidad postoperatoria es complejo debido a la diversidad en la gravedad e implicancias para el paciente; basado en ello, Clavien publicó una clasificación basada en la gravedad de la morbilidad postoperatoria. El objetivo de este estudio es reportar la morbilidad postoperatoria en pacientes intervenidos por HH no complicada aplicando la clasificación de Clavien. Material y Método: Estudio de cohorte prospectiva. Se incluyeron pacientes intervenidos quirúrgicamente por HH no complicada, en el Hospital Hernán Henríquez Aravena de Temuco, entre 1997 y 2008. La variable resultado principal fue desarrollo de morbilidad postoperatoria aplicando la escala de Clavien. Otras variables de interés fueron estancia hospitalaria, mortalidad y recurrencia. Las técnicas quirúrgicas empleadas fueron periquistectomía total o subtotal y resección hepática. Se calcularon porcentajes, medidas de tendencia central y dispersión; intervalos de confianza de 95 por ciento e incidencia. Resultados: 116 pacientes, con mediana de edad de 40,5 años; 60,3 por ciento de género femenino. La mediana del diámetro quirúrgico promedio fue de 115,4 +/- 23,2 min. La incidencia de morbilidad fue de 8,6 por ciento; 90 por ciento de los cuales eran Grado I o II de Clavien. La etiología fue 5,2 por ciento de complicaciones médicas y 3,4 por ciento de complicaciones quirúrgicas. No se registró mortalidad. Con una mediana de seguimiento de 95 meses, se verificó recurrencia en 1 paciente, lo que representa una incidencia de 0,9 por ciento. Conclusiones: Se describe la morbilidad postoperatoria de una cohorte de pacientes con HH no complicada con énfasis en la gravedad de esta. La morbilidad observada es inferior a la publicada y de bajo nivel de gravedad.

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