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Current issues in the diagnosis and management of pediatric empyema.

Empyema is a rare but recognized complication of bacterial pneumonia in children. The incidence of empyema may be rising as vaccination practices and antibiotic prescribing practices promote the emergence of more virulent and resistant organisms. Diagnostic methods vary widely, from thoracentesis to plain radiographs to detailed computed tomography scans. Treatment practices also vary, with some practitioners preferring medical treatment, others employing chest tube drainage or fibrinolytic therapy, and still others aggressively pursuing surgical options. Further study is needed to define the ideal management of empyema. The authors review the current literature and propose an updated management algorithm that incorporates accepted practices as well as emerging trends in diagnosis and management of empyema.

Adult↗

Video-assisted thoracoscopic surgery in the paediatric population.

OBJECTIVE: Video-assisted thoracoscopic surgery (VATS) is now widely practised in adults but there are few publications on its application in the paediatric population. METHODOLOGY: Retrospective review of the authors' experience with VATS in children under 16 years old during an 18 month period in a university teaching hospital. RESULTS: From September 1993 to March 1994, VATS was attempted in 14 patients. Five were unsuccessful because of pleural symphysis or inability to collapse the upper lung. Ten cases of VATS were successfully performed in the remaining nine patients (eight males, one female; age range from 22 days to 15 years old). These included two drainages and limited decortications for loculated pleural effusion, one guided drainage of pericardial effusion, one thymectomy for thymic hyperplasia, three wedge resections for metastatic pulmonary osteosarcoma and three bleb excisions and pleurodesis for primary spontaneous pneumothoraces. There were no intra-operative complications. There was one death from dysrhythmia following an uneventful wedge resection. The mean duration of chest tube drainage was 1.4 days and postoperative hospital stay 2.6 days excluding two patients who stayed for further medical treatment. CONCLUSION: VATS is a useful approach in selected cases but further development of this approach awaits refinement of anaesthetic technique and endoscopic instrumentation.

Adolescent↗

Management of bronchopleural fistula in the adult respiratory distress syndrome.

Bronchopleural fistula occurring as a complication in patients with the adult respiratory distress syndrome typically appears after 1 to 2 wks of illness, and is associated with a poor prognosis. Whether the bronchopleural fistula per se worsens outcome is not known because of the lack of studies on its natural history. There are several potential adverse effects of bronchopleural fistula in adult respiratory distress syndrome (e.g., incomplete lung expansion, loss of effective tidal volume or positive end-expiratory pressure, inability to remove CO2, etc.), but the actual frequency of these problems among patients with this complication appears to be low, and their magnitude and clinical impact remain uncertain. Most of the literature consists of anecdotal reports of innovative measures for reducing the leak, such as manipulation of chest tube suction, high-frequency jet ventilation, independent lung ventilation, and various maneuvers using the fiberoptic bronchoscope. Controlled studies are lacking, however, and the application of sound, general management principles is of primary importance. The great majority of patients can be managed satisfactorily without resort to unfamiliar, labor-intensive, potentially hazardous measures.

Adult↗

The effects of milrinone on platelets in patients undergoing cardiac surgery.

Although amrinone produces thrombocytopenia, no information is available regarding the acute effects of milrinone on platelets. Therefore, we evaluated the effects of milrinone on platelet number and function in cardiac surgical patients. Twenty-seven patients were studied during cardiac surgery requiring cardiopulmonary bypass (CPB). Patients were randomized to receive no milrinone (n = 10), or milrinone (n = 17) at a loading dose of 50-75 micrograms/kg in the CPB circuit followed by 0.5-0.75 micrograms.kg-1.min-1 for 12-24 h. Bleeding times and blood samples for coagulation studies were obtained prior to induction, and at 2 and 24 h after CPB. In both groups, platelet counts decreased significantly from the baseline at 2 and 24 h after CPB, and bleeding time increased significantly from the baseline at 2 and 24 h after CPB. No significant thromboelastoplasty (TEG) changes were observed in either group, and there were no significant differences in platelet aggregation or chest tube drainage between the groups. Acute milrinone administration did not cause significant changes in platelet number or function in patients undergoing cardiac operations requiring CPB, beyond the usual adverse effects of cardiac surgery and CPB.

Adult↗

Successful management of postoperative chylothorax with fibrin glue in a premature neonate.

Chylothorax is a potentially serious condition that may complicate a variety of thoracic operations, particularly cardiothoracic procedures for congenital heart disease. Conservative therapy with chest tube drainage of the chyle fluid and dietary manipulations is frequently effective. When conservative treatment fails, surgery may be necessary. In this report, the authors discuss their recent experience with fibrin glue in the management of a 600-g premature neonate who had a postoperative chylothorax. Recent trends in the management of this difficult problem are also discussed.

Chest Tubes↗

Central nervous system toxicity in a patient receiving continuous intrapleural bupivacaine.

A patient developed signs of central nervous system (CNS) toxicity during treatment of postthoracotomy pain with a continuous intrapleural bupivacaine infusion. This incident occurred after the patient's chest tube was clamped, without any decrease in the bupivacaine infusion rate. This is the first reported case of CNS toxicity in a patient receiving a continuous intrapleural bupivacaine infusion. Possible etiologies of this complication are discussed, as are ways to avoid such a complication in the future.

Akathisia, Drug-Induced↗

Thoracoscopic findings in spontaneous pneumothorax in AIDS.

Six patients with the acquired immunodeficiency syndrome (AIDS) who suffered eight spontaneous pneumothoraces between January 1990 and January 1993 underwent videothoracoscopy. The predominant macroscopic findings, found in four patients on five occasions, were white-yellow nodules dispersed throughout the lung surface. In addition, in one patient, these lesions were associated with multiple small apical bullae and, in another, a large reddish nodule with several smaller white satellite nodules was noted on the parietal pleura. Methenamine silver stain of biopsy samples of both the visceral and parietal nodules in these patients showed the presence of Pneumocystis carinii. May-Grunwald-Giemsa stain of brushing samples of visceral lesions revealed P-carinii in two patients. In one of these patients, previously performed bronchoalveolar lavage (BAL) had not yielded P-carinii. On two occasions, the thoracoscopic findings were unremarkable, although in one of these patients, computed tomography (CT) had shown a large thick-walled cyst near the left hilum and BAL revealed P-carinii. Talc poudrage through the thoracoscopic cannula followed by chest tube drainage was performed in all patients and was successful in treating three of five with proved P-carinii pneumonia-related pneumothorax. The etiology of pneumothorax in AIDS and the diagnostic and therapeutic utility of videothoracoscopy in these patients are discussed.

AIDS-Related Opportunistic Infections↗

Technique for high volume drainage beneath large tissue flaps.

We have found that a chest tube placed beneath large tissue flaps and connected to a standard closed pleural drainage system gives superior results in terms of approximation of tissues and evacuation of the fluid to any available self-contained suction drain. This system makes continuous high volume drainage possible without sacrificing the mobility of the patient or the sterility of the drainage system. Quantifying daily drainage into the closed pleural drainage system is easy for nurses and surgical staff alike. We suggest that this type of drainage system is applicable to a wide variety of reconstructions of the abdominal and chest walls involving extensive soft tissue flaps.

Abdominal Muscles↗

On the possible role of positive end-expiratory pressure ventilation in the treatment of chylothorax caused by blunt chest trauma.

Recent reports on the treatment of chylothorax postulate a benefit to ventilator therapy, especially using positive end-expiratory pressure (PEEP). This report describes the use of mechanical ventilation with PEEP in the management of a 24-year-old male motorcyclist who sustained a ligamentous Chance fracture of the thoracic spine at the T6-7 level with bilateral traumatic chylothorax. Treatment of the chylothorax consisted of high PEEP ventilation, bilateral chest tube thoracostomies, and total parenteral nutrition. The chylothoraces resolved within 4 days of treatment and mechanical ventilation was stopped. Ventilator therapy of traumatic chylothorax and the physiologic grounds for its use are discussed. A review of the literature and experimental evidence seem to suggest that ventilator treatment of traumatic chylothoraces is effective.

Accidents, Traffic↗

Video-assisted evacuation of empyema is the preferred procedure for management of pleural space infections.

BACKGROUND: Empyema remains a cause of morbidity and mortality. Thoracoscopy has proved its versatility in the management of pleural space disorders. The suitability of video-assisted thoracic surgery (VATS) for decortication in the management of the fibrotic stage of empyema is unclear. METHODS: VATS evacuation of empyema and decortication was performed on seventeen patients presenting with pleural space infections. A retrospective review was performed and constitutes the basis of this report. RESULTS: VATS evacuation of empyema and decortication was successfully performed in 13 of 17 patients. Blood loss was 325 +/- 331 cc. Mean hospital stay was 18 +/- 10 days. Postoperative hospitalization was 11 +/- 7 days. Chest tubes remained in place for 7 +/- 3 days. There were no operative mortalities. CONCLUSIONS: Video-assisted evacuation of empyema and decortication is an effective modality in the management of the exudative and fibrinopurulent stages of empyema. An organized empyema should be approached thoracoscopically, but may require open decortication.

Blood Loss, Surgical↗

Parapneumonic empyema in children: diagnosis and management.

Parapneumonic effusion can be a significant problem if it is not recognized and treated promptly. The amount of pleural fluid at presentation is usually small and may not be detected on physical examination. If pleural fluid is seen on radiographs, thoracentesis must be performed. Early, free-flowing parapneumonic effusions usually respond clinically to antibiotic therapy without the necessity of draining the pleural space. Distinguishing between exudative effusion and empyema is crucial. Failure of effusion or empyema to respond to the treatment is usually due to failure to adequately drain the pleural space or inappropriate antibiotic therapy. If chest tube drainage does not result in a lower temperature and an appropriate clinical response within a few days, further evaluation by computed tomographic scanning and surgical consultation are indicated. In patients with pleural effusion and empyema that responds poorly to medical and/or surgical therapy, underlying causes or associated debilitating disease should be excluded.

Age Factors↗

[Treatment of spontaneous pneumothorax: survey among Dutch pneumonologists].

OBJECTIVE: To gain insight into the treatment of spontaneous pneumothorax in the Netherlands. DESIGN: Questionnaire. SETTING: Nationwide in the Netherlands. METHOD: A questionnaire was sent to all 286 practising pulmonologists in the Netherlands to inquire about the mode of treatment used for spontaneous pneumothorax. Answers were sorted by size of practice. University hospital, non-university hospitals qualified for residency training and offices with at least 4 pulmonologists were classified as large practices. Other practices were classified as small. RESULTS: 89% of all pulmonologists responded. In small practices, a first spontaneous pneumothorax was treated by chest tube drainage; in large practices, thoracoscopy was usually performed. In recurrent pneumothorax, thoracoscopy was the first choice in both small and large practices. The role of interventional thoracoscopy and surgery was not established. CONCLUSION: Worldwide, including in the Netherlands, there is no consensus about the treatment of spontaneous pneumothorax. Randomised studies with cost-effect analysis are necessary.

Chest Tubes↗

Bacteremic necrotizing pneumococcal pneumonia in children.

Necrotizing pneumonia, massive necrosis of lung tissue, is a serious, often fatal, complication of lobar pneumonia. Four children 1.3 to 7.5 yr of age were hospitalized with bacteremic pneumococcal pneumonia. All of them were acutely ill on presentation with arterial desaturation, and they developed anemia and thrombocytosis. Two patients had pleural effusion requiring drainage. A chest CT scan revealed segmental or lobar pulmonary liquification, which led to the diagnosis of necrotizing pneumonia. This finding could be demonstrated early in the course of the disease. Subsequently, all of the patients developed cavitating lesions. With adequate antipneumococcal therapy and/or chest tube drainage, all of the patients recovered completely; however, clinical improvement was prolonged: fever lasted 9 to 20 days, and length of hospitalization was 12 to 26 days. Contrary to that in adults, complete recovery is anticipated in children with bacteremic necrotizing pneumococcal pneumonia, and no invasive investigations are required.

Anti-Bacterial Agents↗

Intrapleural streptokinase as adjunctive treatment for persistent empyema in pediatric patients.

Successful treatment of persistent empyema by intrapleural streptokinase is described in five pediatric patients. Their ages ranged from 18 months to 7 years. All experienced dramatic improvement in the resolution of their empyemas following intrapleural streptokinase. Improved chest tube drainage occurred concurrently with clinical improvement. Intrapleural instillation of streptokinase appears to be a safe adjunctive therapeutic tool to facilitate drainage of persistent empyema in the small number of pediatric patients in whom it has been employed. Additional study will be required to further assess the long-term therapeutic efficacy and consequences of intrapleural streptokinase therapy.

Chest Tubes↗

VATS debridement versus thoracotomy in the treatment of loculated postpneumonia empyema.

BACKGROUND: There are approximately 60,000 new cases of postpneumonic empyema every day in the United States. Usually the fibrinopurulent stage of this complication has been treated by either tube thoracostomy or thoracotomy and debridement. According to the literature, thoracoscopic treatment has not been used often for this disease. METHODS: Sixty-four cases of postpneumonic fibrinopurulent empyema were operated on at our institution: 33 cases (group I) by means of a formal thoracotomy and 31 cases (group II) by thoracoscopy. In the thoracoscopic subset the data were collected prospectively since 1992. These results were compared with those of a historical series treated by thoracotomy between 1985 and 1991. Both populations were similar in terms of age (mean, 49 years), number of cases (33/31), sex (2.1 male/female), and comorbid status. RESULTS: Mean preoperative length of the medical management (11.5 versus 17 days) (p = 0.03) and chest tube removal (4.3 versus 6.1 days) were shorter in group II than in group I (p = 0.02). Morbidity and mortality were identical: one death and five complications in each group. Mean operative time was similar in both groups, and hospital stay was shorter in the video-assisted thoracic surgery group (6.8 versus 11.2 days) (p = not significant). Three patients from group II needed utilitary thoracotomies for debridement completeness (10% conversion rate). CONCLUSIONS: We conclude that video-assisted thoracic surgical treatment has the same rate of success as open thoracotomy but offers substantial advantages over thoracotomy in terms of resolution of the disease, hospital stay, and cosmesis. A prospective and randomized study is needed to confirm the findings of this nonrandomized initial experience.

Adolescent↗

Chylothorax complicating left lower sleeve lobectomy.

Postoperative chylothorax is an infrequent but potential life-threatening complication and has most often been described following oesophageal resection. Its incidence after pulmonary resection is low, but has increased to 0.3-0.5%, probably due to more extensive types of resections and radical lymph node dissections. We report a case of chylothorax after a left sleeve lobectomy for a primary bronchogenic carcinoma, that was treated conservatively with chest tube drainage and a diet of medium chain triglycerides. Five additional case reports in English and French literature confirmed chylothorax after bronchoplastic procedures to be extremely rare. More frequent use of bronchial sleeve resection as alternative to pneumonectomy to save functional lung tissue, can increase the incidence of chylothorax after bronchoplastic procedures.

Aged↗

[Simplified technique for thoracic drainage in anterior surgery of scoliosis in the child].

The authors describe a technique of thoracic drainage after anterior surgery of the spine in a pediatric population. A comparative study of drainage using the standard chest tube in one group of patients and small multiperforated vacuum drainage do not show any difference in term of morbidity. As the modified drainage is best tolerated in term of pain, easier to take care of and costless, the authors recommand this technique in children when hermetic closing of the pleura is possible and in absence of air-leakage.

Adolescent↗

Modified central line for pneumothorax.

Pneumothoraxes, whether spontaneous or iatrogenic, frequently require drainage. Although the recent trend has been toward a catheter-based approach, many thoracic surgeons continue to use chest tubes. Tube thoracostomy is associated with significant pain at the time of insertion and during continued drainage. Pneumothorax catheters are less painful but more expensive, and some have been associated with significant failure. After disappointing experience with pneumothorax catheters, we have modified a central line to use in lieu of a pneumothorax kit. We have found this technique to be effective, safe, reliable, and inexpensive.

Catheterization↗