Increased bone resorption by long-term cigarette smoke exposure in animal model.

INTRODUCTION: Clinical and experimental studies have been attesting the deleterious effects of smoking mainly due to the stimulation of osteoclastogenesis and inhibition of osteoblastogenesis. However the physiological mechanisms that can explain these changes are not fully understood. AIMS: To evaluate the trabecular bone resorption effect caused by long-term exposure to cigarette smoke and the action of cytokines and reactive oxygen species involved in this process. METHODS: Sixty young adult C57BL/6 mice were allocated to two groups: control, 30 animals exposed to filtered air for 1, 3 and 6 months; and smoke, 30 animals exposed to cigarette smoke for 1, 3 and 6 months. Femoral and tibial extraction was performed to evaluate the bone mineral matrix, bone cytokines (Receptor activator of nuclear factor-kappa B ligand - RANKL and Osteoprotegerin - OPG) and oxidative stress markers (Thiobarbituric acid reactive substances - Tbars). RESULTS: Exposure to cigarette smoke (CS) generated changes in bone structural parameters in the 6th month of follow-up, demonstrating an evident bone loss; reduction in OPG/RANKL ratio from the 3rd month on and increase in Tbars in the first month, both closely related to the increase in osteoclastogenic activity and bone resorption. CONCLUSION: These findings reinforce the importance of CS-induced oxidative stress in bone compromising the bone cellular activities with a consequent impairment in bone turn over and changes in bone structure.

Decreased Bone Type I Collagen in the Early Stages of Chronic Obstructive Pulmonary Disease (COPD).

Smoking is the main risk factor for the development of chronic obstructive pulmonary disease (COPD) and is known to have deleterious effects on bone metabolism. However, the effects on bone collagen matrix during the development of COPD are unclear. The aim of this study was to evaluate the temporal effect of cigarette smoke exposure on bone type I collagen during COPD development in a cigarette smoke-induced model. C57BL/6 mice were allocated to three groups: control (C), animals exposed to filtered air for 1, 3 and 6 months; cigarette smoke (S), animals exposed to cigarette smoke for 1, 3 and 6 months; provisional smoking (PS), animals exposed to cigarette smoke for 3 months, followed by another 3 months of filtered air exposure. Evaluation of the respiratory mechanics and alveolar enlargement were performed. Femoral and tibial extraction was also performed to evaluate the type I collagen by immunofluorescence and COL1A1 gene expression. Exposure to cigarette smoke led to an alveolar enlargement and progressive reduction in lung tissue resistance and elastance, progressive reduction of type I collagen and reduction in COL1A1 gene expression. Although we did not observe any improvement in the functional and histological parameters in the provisional smoking group, we detected an increase in COL1A1 gene expression. A worsening in bone collagen matrix is part of the initial physiopathological events during COPD development and the smoking cessation induced an evident recovery of COL1A1 expression, possibly to attempt at tissue repair.

The deleterious effects of smoking in bone mineralization and fibrillar matrix composition.

INTRODUCTION: This study aimed to verify the effects of cigarette smoke exposure in bone mineralization and fibrillar matrix composition as well as in bone healing after tibial fracture induction. METHODS: C57Bl/6 Mice were assigned according to exposure and surgery: C room air; F room air and tibia open osteotomy; CS cigarette smoke; FCS cigarette smoke and tibia open osteotomy. In order to study fracture healing we performed, under anesthesia, a bone injury through a tibial shaft osteotomy. Bone samples were obtained to evaluate bone histomorphometry, trabecular morphology and volume, trabecular collagen types composition and presence of inflammatory cytokines and growth factors. RESULTS: CS exposure significantly reduced the thickness of bone trabeculae associated with decrease in mineralizing surface and mineral deposition rate, leading a lower bone formation rate and longer mineralization time. Resorption surface and osteoclastic surface were greater in the CS group, attesting increased resorptive action. There was a decrease in type I collagen deposition and genes expression in the CS and FCS groups compared to C group and in contrast there was an increase in type V collagen deposition and genes expression in the CS, FC and FSC groups compared to C group. Also, CS exposure induced a decrease in bone forming cytokines and an increase in inflammatory associated cytokines, and these changes were intensified under fracture conditions. CONCLUSION: Cigarette smoke exposure alters bone matrix composition and worsens bone mineralization, leading to bone fragility by increasing collagen V synthesis and deposition and impairing collagen I fibril forming and assembling. And these deleterious effects contributed to the worsening in fracture healing after tibia osteotomy.

Total knee arthroplasty with subvastus approach in patient with chronic post-traumatic patellar dislocation / Artroplastia total de joelho por via subvasto em paciente com luxação crônica pós-traumática de patela

ABSTRACT Chronic lateral dislocation of the patella is a rare condition and acquired causes are usually secondary to knee trauma. The neglected chronic dislocation leads to progressive genu valgum and external tibial torsion deformities with subsequent gonarthrosis, which becomes painful and debilitating. There is no consensus regarding treatment of these patients, but total knee arthroplasty (TKA) is a useful therapy in cases of painful symptomatic gonarthrosis. Few reports have shown that subvastus approach and lateral release may be a valid option for TKA, since it allows the correction of valgus deformity and patellar tracking without interrupting vascular blood supply of patella. This article reports a case of TKA and extensor mechanism realignment without patellar resurfacing in a patient with genu valgum and chronic post-traumatic patellar dislocation with satisfactory results after two years of follow-up.

RESUMO A luxação crônica da patela é uma patologia rara e o trauma sua principal causa adquirida. Quando negligenciada, leva ao geno valgo progressivo, à torção externa da tíbia e à subsequente artrose debilitante. Não existe consenso na literatura com relação ao tratamento desses pacientes, porém a artroplastia total de joelho (ATJ) tem se mostrado um procedimento eficaz em casos de gonartrose sintomática dolorosa. Poucos relatos mostraram que a via subvasto associada à liberação lateral é uma opção válida para ATJ, já que permite a correção de deformidades em valgo e da boa excursão patelar, sem interrupção do suprimento sanguíneo. Relatamos um caso de uma paciente com geno valgo e luxação crônica pós-traumática de patela submetida a ATJ associada ao realinhamento do mecanismo extensor, com resultados satisfatórios persistentes após seguimento de dois anos.

Effect of postoperative use of nasal oxygen catheter supplementation in wound healing following total knee arthroplasty

OBJECTIVES: Healing is an event that is fundamental to the success of total knee arthroplasty. The aims of the present study were to compare the rates of complications related to wound healing between two groups of volunteers submitted to total knee arthroplasty and to evaluate the effects of postoperative oxygen supplementation by means of a nasal catheter. METHOD: A total of 109 patients who underwent total knee arthroplasty were randomized into two groups, namely, groups that did and did not receive postoperative oxygen supplementation via a nasal catheter. The surgical wound was monitored every day during the hospital stay and on the 7th, 14th, 21st, 30th and 42nd postoperative days. Characteristics related to healing were observed, including hyperemia, dehiscence, necrosis, phlyctenules and deep and superficial infection. RESULTS: There were no cases of deep infection. Hyperemia was statistically correlated with the total number of complications in the groups, with oxygen demonstrated to be a protective factor against hyperemia. Approximately 30% of the patients who exhibited hyperemia had other complications, independent of oxygen supplementation. CONCLUSION: Oxygen supplementation following total knee arthroplasty was shown to be effective in diminishing hyperemia around the operative wound. The development of hyperemia was a precursor to other complications, irrespective of whether oxygen supplementation was used. .

Derrame pleural secundário à hiperestimulação ovariana / Pleural effusion following ovarian hyperstimulation

A síndrome de hiperestimulação ovariana (SHEO) é uma complicação iatrogênica que ocorre na fase lútea de um ciclo hormonal induzido. Na maioria dos casos, os sintomas são autolimitados e regridem espontaneamente. Entretanto, casos graves comumente cursam com desconforto respiratório agudo. O objetivo deste estudo foi descrever a apresentação clínica, o tratamento e os desfechos de derrame pleural associado a SHEO em três pacientes submetidas a fertilização in vitro. A idade das pacientes variou de 27 a 33 anos, e o aparecimento do derrame pleural sintomático (bilateral em todos os casos) ocorreu, em média, 43 dias (variação: 27-60 dias) após o início da terapia hormonal para a indução da ovulação. Todas as pacientes necessitaram de internação hospitalar para reposição volêmica maciça, e duas delas necessitaram de ventilação mecânica não invasiva. Embora todas as pacientes tenham sido inicialmente submetidas à toracocentese, a recidiva precoce dos sintomas e do derrame pleural fez com que se optasse pela drenagem pleural com cateter do tipo pigtail. Apesar do alto débito de drenagem (média de 1.000 mL/dia na primeira semana) e do tempo de drenagem prolongado (9-22 dias), os desfechos foram excelentes (alta hospitalar). Embora o derrame pleural secundário a SHEO seja provavelmente subdiagnosticado, a morbidade associada não deve ser subestimada, principalmente devido a seus efeitos em pacientes potencialmente gestantes. Nesta série de casos, o diagnóstico precoce e as medidas de suporte clínico adequadas permitiram uma evolução favorável, limitando a abordagem cirúrgica a uma drenagem pleural adequada.

Ovarian hyperstimulation syndrome (OHSS) is an iatrogenic complication that occurs in the luteal phase of an induced hormonal cycle. In most cases, the symptoms are self-limited and spontaneous regression occurs. However, severe cases are typically accompanied by acute respiratory distress. The objective of the present study was to describe the clinical presentation, treatment, and outcome of pleural effusion associated with OHSS in three patients undergoing in vitro fertilization. The patients ranged in age from 27 to 33 years. The onset of symptomatic pleural effusion (bilateral in all cases) occurred, on average, 43 days (range, 27-60 days) after initiation of hormone therapy for ovulation induction. All three patients required hospitalization for massive fluid resuscitation, and two required noninvasive mechanical ventilation. Although all three patients initially underwent thoracentesis, early recurrence of symptoms and pleural effusion prompted the use of drainage with a pigtail catheter. Despite the high output from the pleural drain (mean, 1,000 mL/day in the first week) and prolonged drainage (for 9-22 days), the outcomes were excellent: all three patients were discharged from hospital. Although pleural effusion secondary to OHSS is probably underdiagnosed, the associated morbidity should not be underestimated, especially because it affects potentially pregnant patients. In this study, early diagnosis and appropriate supportive measures yielded favorable results, limiting the surgical approach to adequate pleural drainage.

Conduta cirúrgica do derrame pleural parapneumônico em adultos / Surgical treatment for parapneumonic pleural effusion in adults

Cerca de 40% dos pacientes portadores de pneumoniadesenvolverão derrame pleural parapneumônico (DPP), o que está associado a considerável morbimortalidade. O DPP possui três fases: exsudativa, fibrino-purelenta e de organização, que representam o progresso da doença. Apesar das várias opções de tratamento existentes, a conduta terapêutica não está bemestabelecida, visto que para cada fase a eficácia de cada método é variável. Procurou-se, nesta revisão de literatura, analisar as diversas opções disponíveis e os critérios que determinam suaindicação. De modo geral, o uso da toracocentese terapêutica deve ser restrito a casos de DPP simples pequenos, que ocupam até metade do hemitórax. Já a toracostomia com drenagem fechada apresenta indicação mais ampla: DPP simples volumosos ouDPP complicados e empiema livres na cavidade. Para tais casos com múltiplas loculações, a decorticação vídeo-assistida (VATS) constitui o tratamento ideal. Por fim, a decorticação por toracotomia está indicada em casos mais crônicos com encarceramentopulmonar, embora existam evidências de que a VATS também pode ser empregada nesses casos e, em caso de necessidade, convertida no intra-operatório para toracotomia. Em relação aos agentes fibrinolíticos, os dados existentes sobre sua eficácia sãocontraditórios, de modo que seu uso ainda é restrito...

At least, 40% of all patients with pneumonia will have a parapneumonic pleural effusion (PPE), which is associated to considerable morbidity and mortality. The PPE has three phases: exsudative, fibrinopurulent and organizing, which represent the development of the disease. Despite the great number of therapeutic methods, the PPE management is not well established, because for each phase the success rate of each technique is variable. The objective of this review of literature was to analyzeeach method available and its indications. Briefly, the use oftherapeutic thoracocentesis is restricted to small simple PPE, which are limited to half of the hemithorax. On the other hand, tube thoracostomy has a wider indication: large simple effusions and free-flowing complicated PPE or empyema. For multiloculated cases, the Video-assisted Thoracoscopic Surgery (VATS) is recommendable. Finally, the decortication through thoracotomy isindicated for chronic cases with lung entrapment, although there areevidences that VATS can be used too and, if needed, converted tothoracotomy in the operation room. Regarding thrombolytics, the data available about its efficacy is controversial, thereby its use isstill very restricted...

[Lung hyperinflation after single lung transplantation to treat emphysema]. / Hiperinsuflação pulmonar após transplante unilateral por enfisema.

Despite preventive measures, lung hyperinflation is a relatively common complication following single lung transplantation to treat pulmonary emphysema. The progressive compression of the graft can cause mediastinal shift and respiratory failure. In addition to therapeutic strategies such as independent ventilation, the treatment consists of the reduction of native lung volume by means of lobectomy or lung volume reduction surgery. We report two cases of native lung hyperinflation after single lung transplantation. Both cases were treated by means of lobectomy or lung volume reduction surgery.

Hiperinsuflação pulmonar após transplante unilateral por enfisema / Lung hyperinflation after single lung transplantation to treat emphysema

Apesar das medidas de prevenção, a hiperinsuflação pulmonar é uma complicação relativamente comum após transplantes unilaterais por enfisema. Quando progressiva, pode comprimir o pulmão transplantado, gerando desvio mediastinal e insuficiência respiratória. Além de estratégias terapêuticas como a ventilação independente, o tratamento consiste na redução volumétrica do pulmão nativo, seja por meio de cirurgia redutora, seja por lobectomia. São relatados dois casos de hiperinsuflação do pulmão nativo após transplante pulmonar, tratados com redução volumétrica do pulmão por meio de lobectomia ou cirurgia redutora.

Despite preventive measures, lung hyperinflation is a relatively common complication following single lung transplantation to treat pulmonary emphysema. The progressive compression of the graft can cause mediastinal shift and respiratory failure. In addition to therapeutic strategies such as independent ventilation, the treatment consists of the reduction of native lung volume by means of lobectomy or lung volume reduction surgery. We report two cases of native lung hyperinflation after single lung transplantation. Both cases were treated by means of lobectomy or lung volume reduction surgery.

Is full postpleurodesis lung expansion a determinant of a successful outcome after talc pleurodesis?

STUDY OBJECTIVES: To analyze and compare radiologic lung expansion after talc pleurodesis performed either by videothoracoscopy or chest tube and correlate it with clinical outcome. Secondary end points evaluated were as follows: clinical efficacy; quality of life; safety; and survival. METHODS: Prospective randomized study that included 60 patients (45 women, 15 men; mean age, 55.2 years) with recurrent malignant pleural effusion between January 2005 and January 2008. They were randomized into the following two groups: video-assisted thoracic surgery (VATS) talc poudrage; and talc slurry (TS) administered through a chest tube. Lung expansion was evaluated through chest CT scans obtained 0, 1, 3 and 6 months after pleurodesis. Complications, drainage time, hospital stay, and quality of life (Medical Outcomes Study 36-item short form and World Health Organization quality-of-life questionnaires) were also analyzed. RESULTS: There were no significant differences in preprocedure clinical and pathologic variables between groups. The immediate total (ie, > 90%) lung expansion was observed in 27 patients (45%) and was more frequent in the VATS group (60% vs 30%, respectively; p = 0.027). During follow-up, 71% of the patients showed unaltered or improved lung expansion and 9 patients (15%) needed new pleural procedures (VATS group, 5 recurrences; TS group, 4 recurrences; p = 0.999). No differences were found between groups regarding quality of life, complications, drainage time, hospital stay, and survival. Immediate lung expansion did not correlate with radiologic recurrence, clinical recurrence, or complications (p = 0.60, 0.15, and 0.20, respectively). CONCLUSION: Immediate partial lung expansion was a frequent finding and was more frequent after TS. Nonetheless, no correlation between immediate lung expansion and clinical outcome was found in this study. TRIAL REGISTRATION: ClinicalTrials.gov Identifier: NTC00789087.

Perfil do doador de pulmão disponibilizado no estado de São Paulo, Brasil, em 2006 / Lung donor profile in the state of São Paulo, Brazil, in 2006

OBJETIVO: Analisar a taxa de aproveitamento de pulmões disponibilizados em São Paulo no ano de 2006, bem como caracterizar o perfil dos doadores de pulmão deste período. MÉTODOS: Estudo retrospectivo de 497 prontuários de doadores de pulmão, no período de janeiro a dezembro de 2006. RESULTADOS: Não houve oferta de doação de pulmões para transplante em 149 (30 por cento) dos prontuários analisados, sendo excluídos do estudo. A idade média dos 348 doadores eleitos para o estudo foi de 37,4 ± 16,1 anos, e 56,9 por cento deles eram do sexo masculino. As principais causas da morte cerebral dos doadores foram: acidente vascular cerebral (40,5 por cento); trauma cranioencefálico (34,2 por cento); e hemorragia subaracnóidea (10,9 por cento). A grande maioria dos doadores recebia drogas vasoativas (90,5 por cento), sendo que 13,5 por cento haviam apresentado parada cárdio-respiratória. Do ponto de vista infeccioso, o leucograma médio foi de 15.008 ± 6.467 células/mm³, 67,8 por cento recebiam antibioticoterapia e 26,1 por cento apresentavam infecção pulmonar. Quase 40 por cento dos doadores apresentavam alterações radiográficas. Apenas 4,9 por cento dos doadores foram aceitos, representando 28 pulmões (taxa de aproveitamento de órgãos de 4 por cento). Os motivos de recusa foram: alteração gasométrica (30,1 por cento); infecção (23,7 por cento); e distância (10,9 por cento). CONCLUSÕES: A taxa de aproveitamento de pulmões em nosso meio é baixa quando comparada às taxas médias de aproveitamento mundial. Além disso, mais de 50 por cento das recusas deveram-se à gasometria arterial inadequada e infecção pulmonar. Aliar melhor cuidado ao potencial doador à menor rigidez nos critérios de seleção poderia aumentar a utilização dos órgãos doados.

OBJECTIVE: To analyze the rate at which lungs available for transplantation in the state of São Paulo in 2006 were utilized and to determine the lung donor profile in the same period. METHODS: A retrospective study of 497 clinical charts of lung tissue donors from January to December of 2006. RESULTS: According to the clinical charts, lungs were not offered for transplant in 149 cases (30 percent), which were therefore excluded from the study. Among the 348 lung donors eligible for inclusion in the study, the mean age was 37.4 ± 16.1 years, and 56.9 percent were males. The main causes of brain death among the donors were stroke (in 40.5 percent), skull-brain trauma (in 34.2 percent) and subarachnoid hemorrhage (in 10.9 percent). The great majority of these lung donors (90.5 percent) received vasoactive agents, and 13.5 percent presented cardiopulmonary arrest. The mean donor leukocyte count was 15,008 ± 6,467 cells/mm³, 67.8 percent of the donors received anti-bacterial agents, and 26.1 percent presented lung infection. Nearly 40 percent of the lung donors presented chest X-ray abnormalities. Only 4.9 percent of the lung donors were accepted, representing 28 lungs (allograft utilization rate of 4 percent). The causes for donor exclusion were gas exchange alterations (in 30.1 percent), infection (in 23.7 percent) and distance (in 10.9 percent). CONCLUSIONS: The lung utilization rate in the state of São Paulo is low when compared to mean rates worldwide. In addition, more than half of the donor pool was excluded due to altered gas exchange or pulmonary infection. The combination of better care of the potential donor and more flexible selection criteria could increase allograft utilization.

Análise das características dos pulmões disponibilizados para transplante no Estado de São Paulo / Analysis of the characteristics of lungs available fot transplantation in São Paulo State

Analisar a taxa de aproveitamento de pulmões disponibilizados em São Paulo em 2006, bem como caracterizar o perfil dos doadores de pulmão, no peródo...

Objectives: To analyze the utilization rate of lungs available for transplantation in São Paulo State during 2006, as well as to determine the lung donor profile in this same period. Methods: Retrospective study of 497 lung-donor's medical records during jan/ 2006 to dec/2006...

Endopróteses: opção terapêutica para estenoses traqueobrônquicas adquiridas / Traqueobronchial stents: opção terapêutica option for acquired tracheobronchial stenosis

A estenose traqueobrônquica é uma condição que cursa com dispnéia, estridor e pneumonia obstrutiva, causada por diversas condiçoes como tumores, compressão extrínseca e traqueobroncospia, porém a causa. mais frequente é a complicação resultante de intubação prolongada...

Tracheobronchial stenosis curses with dyspnea, stridor and obstructive pneumonia, and can be caused by tumors, extrinsic compression and tracheobronchomalacia, butthe most frequent cause is the sequel resulting of prolonged intubation, occurring in about intubations. The treatment of choice for such condition is resection of the compromise segment; however this procedure isn´t possible in every patient and this led to the development of endoscopic palliative technique. Tracheobronchial stentintg is between one of such techniques that obtain the best results. Tracheobronchial stents can be divided manly between silicone tubes and self-expandable metallic stents, each one with specific advantages and disadvantages. The present study presents the main stent models, comparing their advantages and disadvantages and complications rates, aiming to systematize the ideal indications for every type of stent...

Derrame pleural maligno: abordagem individualizada conforme apresentação clínica / Malignant pleural effusion: individual management according to clinical presentation

Os pacientes com derrame pleural maligno (DPM) têm neoplasias em fase avançada com mau prognóstico e baixa resposta a tratamento sistêmico. Devido à curta expectativa de vida e ao controle muitas vezes ineficaz pela quimioterapia, quando se apresentam muito sintomáticos alguma terapêutica paliativa efetiva é necessária para oferecer conforto e qualidadede vida a estes pacientes. Porém, visto a grande variedade de apresentações clínicas, a terapêutica ideal não deve ser generalizada para todos os pacientes com DPM, como é pode ser observado em muitos ensaios clínicos sobre o assunto. Esta deve ser individualizada considerando principalmente a performance status e as condições clínicas do paciente. Revisamos as várias opções terapêuticas descritas na literatura para o tratamento de pacientescom DPM, propondo uma abordagem individualizada destes pacientes, de acordo com a suas...

Malignant pleural effusion (MPE) patients have advanced neoplasms with bad prognosis and low response of systemic therapy. When symptomatic, a palliative treatment is mandatory in order to offer comfort and quality of life to these patients. Several options areavailable, as ambulatory procedures and video assisted thoracic surgery. The clinical efficacy of these methods is a matter of debate and subject of many papers. Because of the high varietyof clinical presentations, no single method should be considered as a gold standard procedure, rather the management should be individualized considering the performance status and clinical condition of the patient. We reviewed the options described in the literature for the treatment ofMPE and proposed an individualized management strategy for these patients according to their clinical presentation...

Open bedside tracheostomy: routine procedure for patients under prolonged mechanical ventilation

BACKGROUND: Tracheostomy is electively performed in critically ill patients requiring prolonged respiratory support. The risk of transporting, the increasing associated cost and operative room schedule are some of the obstacles for wider acceptance of this procedure. The use of rigid selection criteria exclude many patients who would benefit of this approach. OBJECTIVE: To determine the safety of open bedside tracheostomy (OBT) as a routine intensive care units (ICU) procedure without any selection criteria, considering its peri and postoperative complications. METHOD: Retrospective medical chart review of all patients that underwent elective tracheostomy between April 1999 and December 2005 at ICU of three private hospitals. RESULTS: The study group comprised 552 patients with a mean age of 69.6 ± 15.8 years. The incidence of significant complications (until 30 days after the procedure) was 4.34 percent (24 cases): 9 minor bleeding, 9 major bleeding, 2 subcutaneous emphysema, 4 stomal infections. Late complications were: laryngotracheal stenosis in 2 and tracheoinomminate fistula in 1 patient. CONCLUSIONS: OBT seems to be a safe and simple procedure, when performed by a team of experienced physicians under controlled circumstances, and should be considered as an option for ICU patients.

INTRODUÇÃO: A traqueostomia é um procedimento eletivo realizado em pacientes de unidades de terapia intensiva sob ventilação mecânica prolongada. O risco associado ao transporte, custos e dificuldades de agendamento cirúrgico são alguns obstáculos para uma maior aceitação da traqueostomia. O uso de rígidos critérios de seleção para a realização deste procedimento a beira do leito exclui muitos pacientes que se beneficiariam deste método. OBJETIVO: Determinar à segurança da traqueostomia convencional a beira do leito como procedimento de rotina (sem a utilização dos critérios de seleção) em unidades de terapia intensiva, considerando as complicações intra e pós-operatórias. MÉTODO: Revisão retrospectiva de prontuários de pacientes submetidos à traqueostomia eletiva nas unidades de terapia intensiva de três hospitais privados no período de abril de 1999 a dezembro de 2005. RESULTADOS: Foram incluídos 552 pacientes com idade media de 69.6 ± 15.8 anos. A incidência de complicações pós-operatórias (até o 30° pós-operatório) foi 4.34 por cento (24 casos): 9 sangramentos leves, 9 sangramentos importantes, 2 enfisemas subcutâneos, 4 infecções do estoma. As complicações tardias observadas foram: estenose laringotraqueal em 2 pacientes e fistula traqueo-inominada em 1 paciente. CONCLUSÃO: A traqueostomia convencional a beira do leito parece ser um procedimento simples e seguro quando realizado por equipe experiente em condições controladas, deve, portanto ser considerada como uma opção para pacientes em terapia intensiva sob ventilação prolongada.

Pneumotórax pós-acupuntura: apresentação clínica e tratamento / Pneumothorax after acupuncture: clinical presentation and management

OBJETIVOS: Apesar de raro, o pneumotórax é um evento adverso da acupuntura potencialmente grave. Visto sua baixa freqüência, apenas relatos de casos são disponíveis e faltam informações quanto os seus aspectos clínicos e terapêuticos. O objetivo deste trabalho é avaliar apresentação clínica, tratamento e evolução do pneumotórax pós-acupuntura. MÉTODOS: Análise retrospectiva de pacientes com pneumotórax pós-acupuntura tratados em hospital terciário no período 2001 2006. RESULTADOS: Cinco pacientes (Três homens e duas mulheres) com idade média de 46 anos (30 73) foram incluídos. Com exceção de um caso em que houve pneumotórax bilateral, em todos houve perfuração pleural à esquerda. Dor torácica foi o sintoma inicial em todos os pacientes, sendo intensa em três casos, levando a procura imediata por serviço de emergência; e leve em dois casos. Quatro pacientes foram tratados com drenagem pleural (três imediatamente após a admissão e uma após falha de tratamento conservador), devido à sintomatologia exuberante e/ou volume do pneumotórax, e um paciente foi tratado conservadoramente. Todos os pacientes apresentaram evolução clínica satisfatória após resolução do pneumotórax e, em seguimento de 6 meses após o evento, apresentavam-se assintomáticos e sem alterações significativas à radiografia de tórax. CONCLUSÃO: Dor torácica ocorreu em todos os casos, em intensidade variável; a drenagem pleural foi a terapêutica mais frequentemente instituída; e todos os casos evoluíram satisfatoriamente, sem complicações.

INTRODUCTION: Pneumothorax is a rare but dangerous complication of acupuncture. Because of its rarity, there are few reports in literature and, therefore little information regarding clinical and therapeutic aspects. This article aims to analyze the clinical presentation, management and follow-up of patients with pneumothorax after acupuncture. METHODS: Retrospective study of patients with post-acupuncture pneumothorax evaluated in a tertiary hospital during a five-year period (2001-2006). RESULTS: Five patients (3 male and 2 female), mean age 46 years (30 73) were included. All patients but one (who had a bilateral pneumothorax) had left-sided pneumothorax . Chest pain, which was the initial symptom in all patients was severe in three cases and mild in two. Four patients underwent tube thoracostomy (pig-tail catheter), three of them immediately after admission and the other after a failed 12-hour conservative treatment period. One patient had a successful conservative management. All had an excellent outcome and were asymptomatic and exhibited a normal chest X-ray at 6-month follow-up CONCLUSION: In all patients, the initial symptom was chest pain, of varying intensity. Tube thoracostomy was the therapeutic modality most frequently employed. All patients had a successful outcome with no further complications.

Post-transplantation lymphoproliferative disorder in pediatric patient.

Immunosuppressive therapy for transplanted patients exposes them to a high risk of developing posttransplantation lymphoproliferative disorders (PTLD). We report the case of a child undergoing heart transplantation at seven months of age who developed PTLD at nine years of age, diagnosed by resection of a pulmonary nodule.

Desordem linfoproliferativa pós-transplante em paciente pediátrico / Post-transplantation lymphoproliferative disorder in pediatric patient / Post-transplantation lymphoproliferative disorder in pediatric patient

Terapias de imunossupressão, a que pacientes transplantados devem ser submetidos, os expõe a um alto risco de desenvolver desordens linfoproliferativas pós-transplante (PTLD). Descrevemos o caso de uma criança submetida a transplante cardíaco aos sete meses de idade e que acabou desenvolvendo PTLD, aos nove anos, diagnosticada por meio de retirada de nódulo pulmonar.

Immunosuppressive therapy for transplanted patients exposes them to a high risk of developing posttransplantation lymphoproliferative disorders (PTLD). We report the case of a child undergoing heart transplantation at seven months of age who developed PTLD at nine years of age, diagnosed by resection of a pulmonary nodule.