Mini-thoracostomy with vacuum-assisted closure: a minimally invasive alternative to open-window thoracostomy / Minipleurostomia com curativo a vácuo: uma opção minimamente invasiva a pleurostomia

ABSTRACT Thoracostomy is a common treatment option for patients with stage III pleural empyema who do not tolerate pulmonary decortication. However, thoracostomy is considered mutilating because it involves a thoracic stoma, the closure of which can take years or require further surgery. A new, minimally invasive technique that uses the vacuum-assisted closure has been proposed as an alternative to thoracostomy. This study aims to analyze the safety and effectiveness of mini-thoracostomy with vacuum-assisted closure in an initial sample of patients.

RESUMO A pleurostomia é uma opção frequente de tratamento para pacientes com empiema pleural fase III que não toleram decorticação pulmonar. Todavia, esse tratamento é considerado mutilante por envolver a confecção de um stoma torácico, que pode demorar anos para se fechar ou requerer nova cirurgia. Descreveu-se recentemente uma técnica minimamente invasiva que associa uso intrapleural de curativo a vácuo como opção a pleurostomia. A presente comunicação objetiva demonstrar o resultado de uma série inicial de pacientes tratados com a minipleurostomia associada ao uso de curativo a vácuo no que tange a sua efetividade e segurança.

Neumonías necrosantes graves con empiema asociado / Severe necrotizing pneumonias with secondary empyemas

Introducción: Las neumonías necrosantes (NN) con empiema son una enfermedad grave y un desafío multidisciplinario. El objetivo de este estudio es realizar una caracterización epidemiológica y, en forma secundaria, analizar su tratamiento y evolución. Presentación de casos: Se realizó un estudio retrospectivo de una serie de casos consecutivos con NN con empiema que se presentaron en el Hospital Padre Hurtado. Siete (77,8%) eran de sexo masculino. La mediana de edad fue de 53 (rango 21-73) años. El 44% presentaban comorbilidades (diabetes, HTA o enfermedades neurológicas). El 44% presentaban abuso de drogas y 3 estaban en un estado de desnutrición severa. Manejo y evolución: La mediana de tiempo de hospitalización fue de 41 (rango 16-129) días. En 4 pacientes el germen aislado fue un Enterococcus faecalis. Complicaciones torácicas ocurrieron en el 33,3% de los pacientes. Un paciente requirió una lobectomía, un paciente una fenestración y otro paciente falleció. Discusión: Las NN con empiemas son raras. Sin embargo, frente a la asociación de diabetes, desnutrición y abuso de drogas continuaremos viendo estos casos de difícil manejo con elevada morbimortalidad.

Introduction: Necrotizing pneumonia complicated with empyema is a life-threatening condition that challenges multidisciplinary teams. The aim of this study is to perform an epidemiological characterization of these patients, and secondly, analyse their treatment and outcomes. Case presentation: A retrospective analysis of a series of consecutive patients experiencing necrotizing pneumonia with empyema who presented at Hospital Padre Hurtado. Seven (77.8%) were male. The median age was 53 (range 21-73) years. 44% presented with comorbidities (diabetes, high blood pressure, and neurological diseases). 44% presented drug abuse consumption and three (33.3%) were in a state of severe malnutrition. Management and outcome: The median time of hospitalization was 41 (range 16-129) days. Thoracotomies were performed in eight (83.2%) of the patients. In four patients, the isolated bacteria's were Enterococcus faecalis. Thoracic complications occurred in three (33.3%) patients. One patient required a lobectomy, one patient a fenestration and one (11.1%) patient died. Discussion: Necrotizing pneumonias complicated with empyema are rare, however, if there is an association with drug abuse, diabetes and malnutrition, we will continue to see such challenging cases with high morbidity and mortality.

Tratamiento quirúrgico del empiema pleural / Surgical treatment of pleural empyema

Empyema in children occurs mainly in association with an underlying pneumonia. The causative microorganisms have changed with the introduction of vaccines; Streptococcus pneumoniae remains the predominant organism. Symptoms and physical examination can not differentiate between pneumonia with or without pleural effusion, when this one is of small amount. So the chest radiograph is essential. Failure to respond to 48 hours of pneumonia treatment should suggest pleural empiema. If the chest radiograph shows parapneumonic pleural effusion, ultrasound should be performed to confirm the presence of fluid in the pleural space and evaluate the first loculations and wall septations. If liquid is clear and sufficient, pleurocentesis for cytochemical and microbiological analysis must be made. If pleural effusion reproduces or has septations, a pleuropulmonary debridement with videothoracoscopy must be done to cure the child in less time and with less consequences.

El empiema en pediatría se produce principalmente en asociación con una neumonía subyacente. Los organismos causantes han cambiado con la introducción de vacunas, siendo el Streptococcus pneumoniae el microorganismo predominante. Tanto los síntomas como el examen físico no permiten diferenciar entre una neumonía con o sin derrame pleural, cuando éste es de poca cuantía, por lo que la radiografía de tórax es fundamental. La falta de respuesta a 48 horas de terapia de la neumonía debe hacer sospechar empiema. Si la radiografía muestra derrame debe realizarse una ecografía torácica para confirmar la presencia de líquido en el espacio pleural y evaluar las primeras loculaciones y tabiques. Si el líquido está libre y en cantidad suficiente debe realizar una pleurocentesis para análisis citoquímico y microbiológico. Si el derrame se reproduce o está tabicado se debe realizar una debridamiento pleuropulmonar videotoracoscópico que mejora al niño en menor tiempo y con menos secuelas.

Thoracoscopic debridement and/or decortication for thoracic empyema: a comparative study with open decortication

To compare between thoracoscopic debridement and/or decortication versus open decortication in the management of thoracic empyema. This retrospective study was conducted out at King Hussein Medical Center, during the period of December 2006 and November 2011. Fifty-five patients with the diagnoses of stage two or three thoracic empyema were included in this study. The patients were divided in two groups. Group A included patients who underwent thoracoscopic debridement and/or decortication and group B included patients who underwent open decortication. Efficacy of the procedure, operative time, and postoperative blood loss, the need for ventilator support, postoperative complications, postoperative hospital stay and mortality were compared in both groups. Males constituted 61.8% [n=34] of the studied patients. Twenty-nine patients [52.7%]; underwent thoracoscopic debridement and /or decortication while 26 patients [47.3%] underwent open decortication. Mean age [range] was 36.55 +/- 16.47 [16-70] years for group A, and 37.70 +/- 14.28 [17-67] years for group B. There was no statistical significant difference between both groups regarding postoperative hospital stay [P=0.1012] and duration of air leak [P=0.1515]. Duration of the procedure was 209.29 +/- 20.93 minutes for group A patients, while it was 97.86 +/- 38.06 minutes for group B patients [P<0.001]. Three out of the 26 patients [11.5%] who underwent open decortication died in the postoperative period though the fatality was zero in group A patients. Thoracoscopic debridement and/or decortication should be considered as the first surgical option in the management of stage two and three thoracic empyema.

Fatores determinantes no resultado do tratamento do empiema pleural em crianças drenagem pleural simples ou videotoracoscopia? Ensaio clínico controlado / Determining factors in the outcome of treatment of pleural empyema in children simple pleural drainage or thoracoscopy ? Controlled clinical trial

O empiema tem sido tratado de várias formas, desde a toracocentese seriada, drenagem torácica fechada (drenagem simples), drenagem com infusão de fibrinolíticos, descorticação por toracotomia e limpeza da cavidade e drenagem através da videotoracoscopia (CTVA). Apesar de a drenagem simples ser um método bastante antigo, é muito eficaz, dependendo do estágio do empiema. Já a CTVA, mesmo sendo mais invasiva, por demandar anestesia geral, é resolutiva na maioria dos estágios do empiema. Analisar os casos de empiema pleural parapneumônico em crianças submetidas à drenagem simples ou à videotoracoscopia precoce em nosso serviço para determinar quais são os fatores determinantes na evolução favorável do tratamento. Ensaio clínico controlado avaliando idade, gênero, queixa, tempo de diagnóstico, aspecto do líquido, patógenos encontrados, tipo de tratamento (drenagem torácica simples ou videotoracoscopia precoce), tempo de drenagem, necessidade de reintervenção, troca do antibiótico e tempo de internação. Foram analisados 54 pacientes com idade de sete meses a 10 anos, tratados no Serviço de Cirurgia Torácica do HCFMB UNESP, com diagnóstico de empiema pleural. O gênero masculino foi predominante (54%), o hemitórax mais acometido foi o direito (28 pacientes) e o tempo de história clínica variou de um a 30 dias. Trinta e dois pacientes foram tratados previamente com antibióticos e em 22% dos casos a bacterioscopia ou a cultura foram positivos para Streptococcus pneumoniae. Vinte e oito crianças foram submetidas à drenagem torácica simples e 26 a CTVA. As variáveis idade, tempo de história e pH do líquido pleural, não apresentaram diferenças significativas. No entanto, o tempo de drenagem foi significativamente menor nos pacientes submetidos à CTVA (4,5 ± 1,8 dias) (p<0,001). A necessidade de abordagem cirúrgica ocorreu somente no grupo submetido à drenagem torácica simples (17,9% p=0,02)...

The empyema have been treated in various ways, from the serial thoracocentesis, exclusive thoracic drainage, drainage and fibrinolytics, infusion thoracotomy and decortication for cavity cleansing to drainage through videothoracoscopy (VATS). Although drainage is a quite old method, it is very effective, depending on the stage of empyema. The VATS even being more invasive, since requires general anesthesia, is resolute in most stages of empyema. To analyze cases of parapneumonic pleural empyema in children undergoing simple drainage or early VATS in our service in order to determine the conclusive factors in a favorable treatment outcome. Prospective controlled trial that evaluated age, gender, time of diagnosis, aspect of the fluid, pathogens, type of treatment (simple chest tube drainage or early VATS), drainage time, need for reintervention, need to change antibiotics and hospitalization time. Fifty-four patients aged seven months old to 10 years old with a diagnosis of empyema were analyzed. Male gender was predominant (54%), right hemithorax was the most affected (28 patients) and the duration of clinical symptoms ranged from one to 30 days. Thirty- two patients were previously treated with antibiotics and in 22% of cases bacterioscopy and / or culture were positive and the most common agent was Streptococcus pneumoniae (22%). Twenty-eight children underwent simple chest tube drainage and 26 underwent VATS. The variables age, history time and pH of the pleural fluid showed no significant differences. The drainage time was significantly lower in patients undergoing VATS (4.5 ± 1.8 days) (p < 0.001). The need for surgical approach was significantly higher in the group undergoing simple chest tube drainage (17.9%)...

Empiema paraneumónico: caracterización y factores asociados a morbi-mortalidad en 242 casos tratados quirúrgicamente / Parapneuminic empyema: characterization and factors associated with morbility and mortality in 242 surgical cases

Objectives: To describe and evaluate factors associated with morbidity and mortality in surgically treated parapneumonic empyemas (PNE). Method: Retrospective review between January 2000 and August 2006. We described clinical features and we performed univariate and multivariate analysis to find the factors associated with morbidity and mortality. SPSS 15.0 program was used in the statistical analysis. Results: 242 of 343 surgically treated empyemas (70.6 percent) were paraneumonic. Of these 165 (68.2 percent were men, average age 52.1 years, 229 (94.6 percent were community-acquired pneumonia (CAP) and 13 (5.4 percent) nosocomial. Germs were isolated in pleural fluid in 57 (23.6 percent). Surgical procedures were: 183 (75.6 percent decortications, 49 (20.2 percent pleurotomies, 7 (2.9 percent video-assisted surgery and 3 (1.2 percent decortications with pulmonary resection. Complications occurred in 65 cases (26.9 percent) and 16 patients died (6.6 percent). We found variables associated with morbidity and mortality. Conclusions: PNE is the most common cause of empyema, mostly associated with CAP and germs are difficult to identify. Decortication is the most common surgical treatment. Morbidity and mortality are present. Variables associated with morbidity and mortality were identified in this clinical series.

Objetivos: Describir las características y evaluar los factores asociados a morbi-mortalidad en el empiema paraneumónico (EPN) tratado quirúrgicamente. Método: Revisión retrospectiva entre Enero 2000 y Agosto 2006. Se describen características y factores asociados a morbi-mortalidad, se realizó análisis univariado y multivariado utilizando programa SPSS 15.0. Resultados: 242 pacientes tenían EPN (70,6 por ciento de los empiemas tratados), 165 (68,2 por ciento) fueron hombres, edad promedio 52,1 años, 229 (94,6 por ciento) fueron neumonías adquiridas en la comunidad (NAC) y 13 (5,4 por ciento intrahospitalarias. Se aisló gérmenes en líquido pleural en 57 (23,6 por ciento). Se realizaron 183 (75,6 por ciento) decorticaciones, 49 (20,2 por ciento) pleurotomías, 7 (2,9 por ciento), cirugías video-asistidas y 3 (1,2 por ciento decorticaciones con resección pulmonar. Presentaron complicaciones 65 (26,9 por ciento. Fallecieron 16 pacientes (6,6 por ciento). Se identificaron variables asociadas a morbi-mortalidad. Conclusiones: El EPN es la causa más frecuente de empiema, la mayoría está asociado a NAC y en pocos se identifican gérmenes. La decorticación es el procedimiento más frecuente. Se identificaron las variables asociadas a morbi-mortalidad en esta serie clínica.

Empiema pleural en 343 casos con tratamiento quirúrgico: características, resultados inmediatos y factores asociados a morbilidad y mortalidad / Pleural empyema: retrospective review of 343 patients

Background: Pleural empyema still has a dismal prognosis. Aim: To describe features and prognostic factors of patients with pleural empyema subjected to surgical procedures. Material and Methods: Retrospective review of 343 patients with pleural empyema (mean age 52 years, 71 percent males), that were subjected to any type of surgical procedure. Criteria for diagnosis of empyema were a positive culture, a fluid pH of less than 7.2 or a compatible macroscopic appearance of the fluid. Results: Empyema was secondary to pneumonia in 243 patients (71 percent, secondary to surgical procedures in 41 patients (12 percent), secondary to trauma in 19 patients (5.5 percent), secondary to a lung abscess in 10 patients (3 percent), tuberculous in 10 patients (3 percent), neoplastic in two cases (0.6 percent), secondary to pneumothorax in 2 cases (0.6 percent) and of unknown origin in 13 patients (4 percent). A microorganism was isolated from pleural fluid in 89 patients (26 percent). The surgical procedures performed were 251 decortications by thoracotomy (73 percent), 70 pleurotomies (20 percent), 11 video assisted surgeries (3 percent), seven decortications with lung resections and four fenestrations. Complications were recorded in 104 patients (30 percent), 29 patients were re-operated (8.5 percent) and 31 died (10 percent), all due to sepsis. Conclusions: The main cause of pleural empyema is pneumonia. In most patients, microorganisms are not isolated from pleural fluid, thoracotomy with decortication is the most frequent surgical procedure. There is a high rate of complications and mortality.

Objetivos: Describir características, resultados inmediatos y evaluar factores asociados a morbi-mortalidad de Empiema Pleural (EP) con tratamiento quirúrgico. Método: Revisión retrospectiva. Período: enero 2000 - agosto 2006. Se describen características, resultados inmediatos y factores asociados a morbi-mortalidad. Se utilizó programa SPSS 15.0. Se consideró significativo p < 0,05. Resultados: 343 pacientes, 243 (70,8 por ciento) hombres (relación 2,4:1), edad promedio 51,7 años. Etiología: 242 (70,6 por ciento) paraneumónico, 41 (12,0 por ciento) postquirúrgico, 19 (5,5 por ciento) postraumático, 10 (2,9 por ciento) absceso pulmonar, 10 (2,9 por ciento) tuberculoso, 6 (1,7 por ciento) neoplásico, 2 (0,6 por ciento) neumotórax y 13 (3,8 por ciento) desconocido. Se aisló germen en líquido pleural en 89 (25,9 por ciento). Se realizaron: 251 (73,2 por ciento) decorticaciones por toracotomía, 70 (20,4 por ciento) pleurotomías, 11 (3,2 por ciento) cirugías video-asistidas, 7 (2,1 por ciento) decorticaciones con resección pulmonar y 4 (1,2 por ciento) fenestraciones. Presentaron complicaciones 104 (30,3 por ciento) pacientes. Se reoperaron 29 (8,5 por ciento). Fallecieron 31 (9,6 por ciento), todos por sepsis. Se encontraron variables asociadas a morbi-mortalidad. Conclusiones: El EP tiene como causa más frecuente el empiema paraneumónico seguido de los postoperatorios, en la mayoría no se identifican gérmenes en líquido pleural. La toracotomía con decorticación es el procedimiento quirúrgico más frecuente. El EP tiene una considerable morbi-mortalidad. Se identifican variables asociadas a morbilidad y mortalidad.

Does videothoracoscopy improve clinical outcomes when implemented as part of a pleural empyema treatment algorithm?

OBJECTIVE: We aimed to evaluate whether the inclusion of videothoracoscopy in a pleural empyema treatment algorithm would change the clinical outcome of such patients. METHODS: This study performed quality-improvement research. We conducted a retrospective review of patients who underwent pleural decortication for pleural empyema at our institution from 2002 to 2008. With the old algorithm (January 2002 to September 2005), open decortication was the procedure of choice, and videothoracoscopy was only performed in certain sporadic mid-stage cases. With the new algorithm (October 2005 to December 2008), videothoracoscopy became the first-line treatment option, whereas open decortication was only performed in patients with a thick pleural peel (>2 cm) observed by chest scan. The patients were divided into an old algorithm (n = 93) and new algorithm (n = 113) group and compared. The main outcome variables assessed included treatment failure (pleural space reintervention or death up to 60 days after medical discharge) and the occurrence of complications. RESULTS: Videothoracoscopy and open decortication were performed in 13 and 80 patients from the old algorithm group and in 81 and 32 patients from the new algorithm group, respectively (p<0.01). The patients in the new algorithm group were older (41 +1 vs. 46.3+ 16.7 years, p = 0.014) and had higher Charlson Comorbidity Index scores [0(0-3) vs. 2(0-4), p = 0.032]. The occurrence of treatment failure was similar in both groups (19.35% vs. 24.77%, p = 0.35), although the complication rate was lower in the new algorithm group (48.3% vs. 33.6%, p = 0.04). CONCLUSIONS: The wider use of videothoracoscopy in pleural empyema treatment was associated with fewer complications and unaltered rates of mortality and reoperation even though more severely ill patients were subjected to videothoracoscopic surgery.

Management of thoracic empyema: review of 112 cases

To review our experience in treatment of patients with thoracic empyema at a teaching hospital chart of patients were retrospectively reviewed over a 72-month period. A total of 112 patients [94 men, 18 women, mean age: 39, range: 6-89 years] underwent therapeutic procedures for thoracic empyema between 2001-2006. The causes of empyema included parapneumonic empyema [60.7%], thoracic trauma [20.5%], surgical procedures [7.1%] and seeding from an extra-pulmonary source [11.7%]. Multiloculated empyemas were documented in 45 patients [40%]. Insertion of chest tube was the first procedure in 103 patients [92%]. Nineteen patients [17%] were treated by thoracotomy, ten patients [8.9%] had fibrinolytic therapy, eight patients [7.2%] underwent video assisted thoracic surgery [VATS] and sixteen patients [14.3%] had subsequent radiologic-guided drainage. Thoracotomy-Decortication was successful in 90% of patients undergoing surgery and the least successful intervention was tube thoracostomy alone. Twelve of 112 patients [10.7%] died in the hospital including one patient in the thoracotomy group. Long-term follow-up was available in 67 patients including all of patients requiring surgery and fibrinolytic therapy. Thirty four patients [50%] obtained complete functional recovery. Simple drainage as the first procedure for the treatment of thoracic empyema has a high failure rate. Selection of a therapeutic option should be based on age, underlying disease, stage of the empyema, state of the loculation, local expertise and availability. Surgical procedures such as VATS or thoracotomy are recommended as the first procedure in elderly patients and advanced empyema

Evaluation of serial C-reactive protein measurements after surgical treatment of pleural empyema

OBJECTIVE: Serial C-reactive protein measurements have been used to diagnose and monitor the response to therapy in patients with pneumonia and other infectious diseases. Nonetheless, the role of C-reactive protein measurement after surgical treatment for pleural empyema is not well defined. The aim of this study is to describe the behavior of C-reactive protein levels after the surgical treatment of pleural empyema and to correlate this parameter with the patient's prognosis. METHODS: We retrospectively analyzed the records of patients with pleural empyema treated by either chest-tube drainage or surgery from January 2006 to December 2008. C-reactive protein levels were recorded preoperatively and 2 and 7 days postoperatively. The clinical outcome was binary: success or failure (mortality or the need for repeated pleural intervention). RESULTS: The study group comprised fifty-two patients. The median C-reactive protein values were as follows: 146 mg/L (pre-operative), 134 mg/L (post-operative day 2), and 116 mg/L (post-operative day 7). There was a trend toward a decrease in these values during the first week after surgery, but this difference was only statistically significant on day 7 after surgery. Over the first week after surgery, the C-reactive protein values decreased similarly in both groups (successful and failed treatment). No correlation between the preoperative C-reactive protein level and the clinical outcome was found. CONCLUSIONS: We observed that, in contrast to other medical conditions, C-reactive protein levels fall slowly during the first postoperative week in patients who have undergone surgical treatment for pleural empyema. No correlation between the perioperative C-reactive protein level and the clinical outcome was observed.

Experiencia inicial en videotoracoscopía: Hospital Base Osorno / Initial experience in videothoracoscopy: Base Hospital Osorno

Introducción: La videotoracoscopía constituye un abordaje mínimamente invasivo del tórax de gran desarrollo en las últimas décadas, permitiendo la realización de prácticamente todos los procedimientos quirúrgicos del tórax. El objetivo de este trabajo es presentar nuestra experiencia inicial con el uso de la videotoracoscopía, sus resultados y realizar una revisión de la literatura. Material y métodos: Se revisó una serie de casos retrospectiva de todos los pacientes intervenidos por vía videotoracoscópica en el Hospital Base Osorno, entre Octubre del 2005 y Septiembre del 2011. Resultados: Se realizaron 31 videotoracoscopías en 29 pacientes. Dieciocho (62 por ciento) pacientes fueron de sexo masculino y 11 (28 por ciento) de sexo femenino. La edad promedio fue de 46,2 +- 16 años de edad. Las indicaciones más frecuentes fueron: estudio de nódulos pulmonares sospechosos de metástasis, empiema pleural y derrame pleural en estudio. Los procedimientos realizados con mayor frecuencia fueron debridaje y aseo, biopsia incisional y biopsia en cuña de nódulos pulmonares. El tiempo operatorio promedio fue de 80,1 +- 43,4 minutos. El tiempo de hospitalización post operatoria promedio fue de 10 +- 10,1 días (rango 1 a 36 días). No hubo mortalidad perioperatoria en la serie. Discusión: Nuestros resultados son satisfactorios y acorde a los reportados en la literatura.

Introduction: the video-assisted thoracoscopy (VATS) is a minimally invasive approach to thoracic surgery with a great development in recent decades, allowing the performance of almost all thoracic surgical procedures. The aim of this study is to present our initial experience with the use of VATS, its results and review the literature. Material and methods: We reviewed a retrospective case series of all patients undergoing VATS in the Hospital Base Osorno between October 2005 and September 2011. Results: We performed 31 VATS in 29 patients. Eighteen (62 percent patients were male and 11 (28 percent female. The average age was 46.2 +- 16 years. The most frequent indications were: study of suspected pulmonary metastasis, pleural empyema and pleura effusion. The most frequently performed procedures were drainage, incisional biopsy and wedge biopsy of lung nodules. The mean operative time was 80.1 +- 43.4 minutes. The mean postoperative hospital stay was 10 +- 10.1 days (range 1 to 36 days). There was no mortality. Discussion: Our results are satisfactory and consistent with those reported in the literature.

Pneumonia necrosante em crianças submetidas à toracoscopia por empiema pleural: incidência, tratamento e evolução clínica / Necrotizing pneumonia in children submitted to thoracoscopy due to pleural empyema: incidence, treatment and clinical evolution

OBJETIVO: Analisar a incidência de pneumonia necrosante (PN) em crianças submetidas a toracoscopia e comparar pacientes com e sem PN em relação às diferentes apresentações e evolução clínica. MÉTODOS: Estudo retrospectivo de crianças portadoras de empiema e submetidas a toracoscopia. A toracoscopia foi realizada em pacientes não submetidos a drenagem torácica prévia e evidência de derrame septado ou pneumotórax, assim como naqueles submetidos previamente a drenagem torácica e pneumotórax persistente ou febre e secreção purulenta. Baseado na presença de PN durante a toracoscopia, os pacientes foram divididos em dois grupos: com PN e sem PN. RESULTADOS: Participaram do estudo 52 pacientes. Dos 24 pacientes com PN, 19 (79 por cento) foram submetidos a drenagem torácica anterior à toracoscopia, 11 (46 por cento) apresentaram pneumotórax, e 16 (67 por cento) evoluíram com fístula broncopleural. Neste grupo, as medianas do tempo de drenagem e de hospitalização foram, respectivamente, 18 e 19 dias. Dos 28 pacientes sem PN, 10 (36 por cento) foram submetidos a drenagem torácica anterior à toracoscopia, 9 (32 por cento) apresentaram pneumotórax, e 5 (18 por cento) evoluíram com fístula broncopleural. Neste grupo, as medianas do tempo médio de drenagem e de hospitalização foram, respectivamente, 6 e 10 dias. CONCLUSÕES: A PN deve ser suspeitada na presença de pneumotórax. A toracoscopia precoce pode ser uma opção terapêutica de grande valor na PN da infância, pois acelera a recuperação quando comparada ao tratamento médico isolado e evita ressecções pulmonares extensas da toracotomia tardia.

OBJECTIVE: To assess the incidence of necrotizing pneumonia (NP) in children submitted to thoracoscopy, comparing patients with and without NP in terms of the presentation and clinical evolution. METHODS: A retrospective study of children with pleural empyema submitted to thoracoscopy. Thoracoscopy was performed in patients not previously submitted to thoracic drainage and in whom there was evidence of loculated effusion or pneumothorax, as well as in those previously submitted to thoracic drainage and in whom there was persistent pneumothorax or fever with purulent discharge. On the basis of the thoracoscopy findings, patients were distributed into two groups: those with NP (NP group) and those without (no-NP group). RESULTS: The study sample comprised 52 patients. Of the 24 patients with NP, 19 (79 percent) had undergone thoracic drainage prior to thoracoscopy, 11 (46 percent) presented with pneumothorax, and 16 (67 percent) developed bronchopleural fistula. In the NP group, the median drainage time and the median length of hospital stay were 18 and 19 days, respectively. Of the 28 patients without NP, 10 (36 percent) had undergone thoracic drainage prior to thoracoscopy, 9 (32 percent) presented pneumothorax, and 5 (18 percent) developed bronchopleural fistula. In the no-NP group, the median drainage time and the median length of hospital stay were 6 and 10 days, respectively. CONCLUSIONS: Pneumothorax should raise the suspicion of NP. Early thoracoscopy can be a valuable treatment option for NP in children because it hastens recovery in comparison with the medical treatment alone and avoids extensive late thoracotomy lung resections.

Empiema pleural causado por tricomonas: caso clínico / Pleural empyema caused by trichomonas: case report

Pleural empyema formation is one of the potential complications of lower respiratory tract infections and it is characterized by bacterial organisms seen on gram stain or the aspiration of pus on thoracentesis. Very rarely empyema can be caused by trichomonas species, of which Trichomonas Tenax appears to be the most common cause. In this article we report the case of a 51-year-old man who developed a pleural empyema caused by trichomonas, and review the available literature of this rare infection of unknown incidence and uncertain pathogenetic significance. Our patient was treated with metronidazole, however complete cure was not achieved and pulmonary decortication was necessary for the successful outcome. As far as we know, this is the first case of pleural empyema caused by trichomonas reported in Chile.

La formación de un empiema pleural es una de las potenciales complicaciones de las infecciones de la vía aérea inferior, y se caracteriza por la observación de bacterias en la tinción de Gram, o la aspiración de pus en la toracocentesis. Muy infrecuentemente el empiema puede ser causado por alguna de las especies de tricomonas, de las cuales Trichomonas Tenax parece ser la causa más común. En este artículo, reportamos el caso de un hombre de 51 años que desarrolló un empiema pleural causado por tricomonas, y revisamos la literatura disponible de esta rara infección, de incidencia desconocida, y significancia patogénica incierta. Nuestro paciente fue tratado con metronidazol, observándose sólo una respuesta parcial, necesitándose decorticación pulmonar para una recuperación completa. Hasta donde sabemos, este es el primer caso de empiema pleural causado por tricomonas reportado en Chile.

Empiema pleural: etiología, tratamiento y complicaciones / Therapy of empyema: retrospective review of 77 patients

Background: Empyema can cause significant medical problems, despite the advances in antimicrobial and surgical treatments. Aim: To compare the results of different therapeutic approaches to empyema. Material and Methods: Retrospective review of medical records of 77 patients with empyema (aged 53 +/- 20 years, 48 males) treated in a clinical hospital between 1994 and 2007. Results: In 74 percent of patients the cause of empyema was pneumonia. Thirty two were initially managed with percutaneous pleurostomy. Seven of these required and additional intervention due to residual empyema. Eleven patients were managed with open thoracotomy and 34 with video assisted thoracoscopy. Complications for percutaneous pleurostomy, open thoracotomy and video assisted thoracoscopy were 34, 36 and 12 percent respectively. The figures for mortality were 25, 0 and 0 percent respectively. Patients subjected to video assisted thoracoscopy required less days with a pleural tube than those subjected to percutaneous pleurostomy or open thoracotomy (5,5-14,3 and 12,4 days respectively). Conclusions: Video assisted thoracoscopy had the best therapeutic results for empyema in this series of patients.

Introducción: Definido como la presencia de infección bacteriana en el espacio pleural, determina una importante morbimortalidad a pesar de los avances en el tratamiento antibiótico y las nuevas técnicas quirúrgicas. Objetivos: Comparar resultados de las distintas estrategias terapéuticas para el Empiema Pleural (EP). Material y Métodos: Revisión retrospectiva de fichas clínicas de pacientes con diagnóstico de EP manejados en el Hospital Clínico Universidad de Chile entre enero de 1994 y junio de 2007. Se consideró significación estadística con p < 0,05. Resultados: De 77 pacientes, 48 fueron hombres y 29 mujeres, con edad promedio de 52,6 +/- 19,9 años. La causa más frecuente de EP fue la neumonía (74 por ciento). En 55 pacientes se realizaron exámenes imagenológicos complementarios a la radiografía de tórax. Treinta y dos pacientes se manejaron inicialmente con pleurostomía percutánea (PP). Siete de ellos requirieron una nueva intervención por empiema residual. Once se manejaron con toracotomía abierta (TA) y 34 con Toracoscopia Vídeo asistida (TVA). La tasa de complicaciones y mortalidad fue: 34,37 por ciento y 25 por ciento para PP, 11,7 por ciento y 0 por ciento para TVA y 36,36 por ciento y 0 por ciento para TA, respectivamente (diferencias significativas). El tiempo de hospitalización promedio fue de 22,8 días, y el de tubo pleural de 9,21 días. Se encontró diferencias significativas entre los días con tubo pleural de los pacientes sometidos a TVA (X = 5,56) respecto de los sometidos a PP (X = 14,24) y TA (X = 12,4). No se observan diferencias en tiempo de hospitalización. Conclusiones: La TVA demuestra obtener mejores resultados que la PP y la TA al evaluar mortalidad, complicaciones y días de tubo pleural.

Prosthesis for open pleurostomy (POP): management for chronic empyemas

OBJECTIVES: We developed a prosthesis for open pleurostomy cases where pulmonary decortication is not indicated, or where post-pneumonectomy space infection occurs. The open pleural window procedure not only creates a large hole in the chest wall that is shocking to patients, also results in a permanent deformation of the thorax. prosthesis for open pleurostomy is a self-retained silicone tube that requires the removal of 3 cm of one rib for insertion, and acts as a mature conventional open pleural window. Herein, we report our 13-year experience with this device in the management of different kinds of pleural empyema. METHODS: Forty-four consecutive patients with chronic empyema were treated. The etiology of empyema was diverse: pneumonia, 20; lung resections, 12 (pneumonectomies, 7; lobectomies, 4; non-anatomical, 1); mixed-tuberculous, 6; and mixed-malignant pleural effusion, 6. After debridment of both pleural surfaces, the prosthesis for open pleurostomy was inserted and attached to a small recipient plastic bag. RESULTS: Infection control was achieved in 20/20 (100 percent) of the parapneumonic empyemas, in 3/4 (75 percent) of post-lobectomies, in 6/7 (85 percent) of post-pneumectomies, in 6/6 (100 percent) of mixed-tuberculous cases, and in 4/6 (83 percent) of mixed-malignant cases. Lung re-expansion was also successful in 93 percent, 75 percent, 33 percent, and 40 percent of the groups, respectively CONCLUSIONS: Prosthesis for open pleurostomy insertion is a minimally invasive procedure that can be as effective as conventional open pleural window for management of chronic empyemas. Thus, we propose that the use of prosthesis for open pleurostomy should replace the conventional method.

Toracoscopia no tratamento do empiema pleural em pacientes pediátricos / Thoracoscopy in the treatment of pleural empyema in pediatric patients

OBJETIVO: Apresentar resultados obtidos com a toracoscopia no tratamento do empiema pleural em pacientes pediátricos. MÉTODOS: Foram avaliados 117 empiemas pleurais, utilizando-se o mediastinoscópio ou a videotoracoscopia, com anestesia geral e sonda de intubação simples. As indicações para a intervenção cirúrgica foram: derrame pleural com ausência de resposta clínica e radiológica ao tratamento clínico (antibióticos, fisioterapia e toracocentese) ou sepse grave, e derrame pleural loculado (documentado por ultrassonografia ou tomografia computadorizada do tórax). RESULTADOS: De fevereiro de 1983 a julho de 2006, 117 toracoscopias foram realizadas em pacientes com idade entre 5 meses e 17 anos (média, 4 anos). O tempo médio de permanência do dreno torácico foi de 9 dias (2 a 33), e o tempo de internação hospitalar foi de 16,44 dias (4 a 49). Houve apenas um óbito (0,8 por cento), e 33 pacientes (28 por cento) tiveram como complicação fístula aérea prolongada. Em 7 pacientes (6 por cento), houve necessidade de conversão para toracotomia com decorticação pulmonar em decorrência da organização do empiema. CONCLUSÕES: Não existe consenso para o tratamento do empiema pleural nesta faixa etária. A terapêutica cirúrgica é geralmente requisitada tardiamente no curso da doença, particularmente quando já existem múltiplas loculações ou quadro séptico grave. A toracoscopia indicada mais precocemente no tratamento do empiema pleural em pacientes pediátricos proporcionou uma melhor resposta à terapêutica clínica, aparentemente reduzindo o índice de morbi-mortalidade, o tempo de permanência do dreno torácico, o tempo de internação hospitalar e o tempo de antibioticoterapia.

OBJECTIVE: To evaluate the results of thoracoscopy for the treatment of pleural empyema in pediatric patients. METHODS: A retrospective study of 117 patients who underwent mediastinoscopy or video-assisted thoracoscopy for pleural empyema treatment. General anesthesia and single-lumen oral intubation were used. Surgery was indicated when there was pleural effusion and no clinical and radiological response to clinical treatment (antibiotics, physiotherapy and thoracocentesis) or severe sepsis, together with loculated pleural effusion (confirmed through ultrasound or computed tomography of the chest). RESULTS: Between February of 1983 and July of 2006, 117 thoracoscopies were performed in patients ranging in age from 5 months to 17 years (mean, 4 years). Mean time for thoracic drainage was 9 days (range, 2-33 days), and mean period of hospitalization was 16.4 days (range, 4 to 49 days). One patient (0.8 percent) died after surgery, and persistent fistula was observed in 33 patients (28 percent). In 7 cases (6 percent), open thoracotomy with pulmonary decortication was performed due to the disposition of the empyema. CONCLUSIONS: Management of pleural empyema in this age bracket is still controversial, and surgical indication is often delayed, particularly when there are multiple loculations or severe sepsis. Early thoracoscopy yields a better clinical outcome for pediatric patients with pleural empyema, with apparent decreased morbidity and mortality, earlier chest tube removal, earlier hospital discharge and improved response to antibiotic therapy.