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[Factors associated with pleural thickening in pleural tuberculosis. Review of 99 cases].

OBJECTIVE: To analyze which factors were related to the development of pleural thickening in pleural tuberculosis (PT). METHODS: We reported 99 patients diagnosed as having PT separated into two different groups according to the presence of radiographic pleural thickening after completing the treatment: normal chest roentgenogram (group 1) or pleural thickening (group 2). We compared: clinical history, chest radiography, pleural fluid analysis, microbiological studies and effects of the treatment. RESULTS: 35 cases in group 1 (35.35%) and 64 in group 2 (64.45%). All the compared results did not differ between the two groups, excluding a higher incidence of febrile cases, increased white cell count and decreased relative percentage of pleural lymphocytes in group 1, and increased number of cases with hemoptysis, positive sputum cultures in patients with parenchymal infiltrates, relative percentage of pleural lymphocytes and decreased white cell count in group 2. CONCLUSIONS: We reported an elevated incidence of residual pleural thickening, but it is unlikely that all the cases could have any clinical significance. We didn't confirm a characteristic pattern. Our findings suggested that a different reaction related or not to the hypersensitivity, rather than the inflammatory response to infection was the responsible for the fibrosis.

Adolescent↗

Percutaneous needle pleural biopsies in pleural effusion of uncertain aetiology in a Nigerian teaching hospital.

Clinical observation shows that most of the patients with pleural effusion of undetermined aetiology in a Nigerian teaching hospital receive antiTB drug trials. This observation prompted the authors to evaluate the role of percutaneous needle pleural biopsy as a diagnostic tool in effusions of uncertain aetiology. Thirty-seven patients with pleural effusion of uncertain aetiology were investigated by percutaneous pleural biopsies using Abrams pleural biopsy needle over an 18-month period. In 34, the aetiology was established giving a sensitivity of 92%. Non-specific pleurisy/empyema remains the commonest cause of effusion (41%), followed closely by malignancies (29.4%) and TB pleurisy (22%), respectively. Percutaneous needle pleural biopsies establish diagnosis of malignancy in 91% of the cases with 72% of the malignancies originating from the lung. There is a significant association between malignancy and pleural effusion of uncertain aetiology in patients above 40 years of age (P = 0.022). The empirical use of antiTB drugs in the absence of investigative results suggestive of the diagnoses should be discouraged. Instead concerted effort should be made to establish the cause of such effusion.

Adolescent↗

[Clinical value of tumor supplied group of factor combined with CEA in diagnosing tuberculosis pleural effusion and malignant pleural effusion].

OBJECTIVES: To determine the clinical value of tumor supplied group of factor (TSGF) combined with carcinoembryonic antigen (CEA) in diagnosing tukerculosis pleural effusion and malignant pleurul effusion. METHODS: TSGF and CEA were detected by ELISA in 14 patients with tuberculosis pleural effusion and 28 patients with malignant pleural effusion. RESULTS: The average levels of TSGF and CEA in patients with malignant pleural effusion were higher than those with tuberculosis pleural effusion. The diagnostic sensitivity of TSGF and CEA in the malignant pleural effusion was 67.5% and 57.5%, the specificity was 85.7% and 78.6%, and the agreement rate was 72.2% and 62.9% respectively; while the sensitivity, specificity and agreement rate of TSGF combined with CEA were 93%, 67.4%, and 88.9%. CONCLUSION: The sensitivity and agreement rate of TSGF combined with CEA are higher than those of either of the two methods. TSGF combined with CEA is important in differentiating tuberculosis and malignant pleural effusion.

Adult↗

A randomized comparison of indwelling pleural catheter and doxycycline pleurodesis in the management of malignant pleural effusions.

BACKGROUND: The purpose of this study was to compare the effectiveness and safety of a chronic indwelling pleural catheter with doxycycline pleurodesis via tube thoracostomy in the treatment of patients with recurrent symptomatic malignant pleural effusions (MPE). METHODS: In this multi-institutional study conducted between March 1994 and February 1997, 144 patients (61 men and 83 women) were randomized in a 2:1 distribution to either an indwelling pleural catheter or doxycycline pleurodesis. Patients receiving the indwelling catheter drained their effusions via vacuum bottles every other day or as needed for relief of dyspnea. RESULTS: The median hospitalization time was 1.0 day for the catheter group and 6.5 days for the doxycycline group. The degree of symptomatic improvement in dyspnea and the quality of life was comparable in each group. Six of 28 patients who received doxycycline (21%) had a late recurrence of pleural effusion, whereas 12 of 91 patients who had an indwelling catheter (13%) had a late recurrence of their effusions or a blockage of their catheter after the initially successful treatment (P = 0.446). Of the 91 patients sent home with the pleural catheter, 42 (46%) achieved spontaneous pleurodesis at a median of 26.5 days. CONCLUSIONS: A chronic indwelling pleural catheter is an effective treatment for the management of patients with symptomatic, recurrent, malignant pleural effusions. When compared with doxycycline pleurodesis via tube thoracostomy, the pleural catheter requires a shorter hospitalization and can be placed and managed on an outpatient basis.

Catheters, Indwelling↗

Hyaluronan content in pleural fluid as a prognostic factor in patients with malignant pleural mesothelioma.

BACKGROUND: Regardless of the modality of therapy used, malignant pleural mesothelioma is a highly treatment-resistant and invariably fatal disease. Identification of prognostic variables are important for future investigational therapeutic studies. METHODS: The prognostic significance of various clinical variables, including hyaluronan levels in pleural fluid, was evaluated in a retrospective analysis in 100 patients with histologically confirmed malignant pleural mesothelioma. RESULTS: The overall median survival was 11.5 months. Univariate analyses identified histologic subtype, i.e., epithelial or mixed, and elevated content of hyaluronan in the pleural effusion as significant prognostic variables. A multivariate analysis confirmed the independent predictive power of histologic subtype, and an elevated concentration of hyaluronan in the pleural fluid also indicated longer survival in older patients and in patients receiving therapy other than supportive. CONCLUSIONS: The prognostic value of histologic subtype and the concentration of hyaluronan in pleural effusions should be considered when designing and evaluating treatment trials for patients with malignant pleural mesothelioma.

Adult↗

Intracranial hypotension and recurrent pleural effusion after snow-boarding injury: a manifestation of cerebrospinal fluid-pleural fistula.

BACKGROUND DATA: Intracranial hypotension causing postural headaches has been described after occult and postsurgical cerebrospinal fluid (CSF) leaks and rarely isolated lumbar punctures. The occurrence of a CSF-pleural communication is much rarer, and a high level of suspicion aids in prompt recognition. PURPOSE: Early detection and anatomic delineation of the site of CSF-pleural fistula allows prompt intervention, results in resolution of symptoms and prevents the complication of meningitis. STUDY DESIGN: A case of intracranial hypotension with postural headaches is described after spinal surgery, with demonstration on computed tomography (CT) myelography of a rare CSF-pleural fistula. METHODS: The clinical presentation, postoperative intervention and imaging as well as laboratory data are presented. RESULTS: Chest X-ray showed recurrent pleural effusion after placement of chest tube, and serial head CT studies revealed decreasing ventricular size with development of severe headaches. Myelogram and CT postmyelogram demonstrate the CSF-pleural communication, allowing appropriate surgical repair. CONCLUSION: Severe headaches with a recurrent pleural effusion after thoracic spinal surgery may indicate presence of a CSF-pleural fistula, an unusual complication of thoracic spinal surgery.

Adolescent↗

Palliative and therapeutic activity of IL-2 immunotherapy in unresectable malignant pleural mesothelioma with pleural effusion: Results of a phase II study on 31 consecutive patients.

Malignant pleural mesothelioma is often unresectable at diagnosis, is refractory to cytotoxic agents and is frequently complicated by pleural effusion. The expected survival range for patients with or without involvement of visceral pleura is respectively 1-9 and 9-12 months; mesothelioma-related pleural effusion severely impairs the patients' quality of life and easily relapses after conservative treatments. Intrapleural administration of IL-2 is reported to be effective both in tumor-associated malignant pleurisy and on primary mesothelioma, whereas few data exist about IL-2 systemic administration. In order to assess the palliative and therapeutic activity of IL-2 in unresectable pleural malignant mesothelioma with pleural effusion, we performed a phase II study on 31 consecutive patients (M/F 16/15; median age 61 years, range 40-84; PS ECOG 0 n=7; ECOG 1 n=15; ECOG 2 n=9; stage IA n=13; IB n=9; II n=7; IV=2) who received first-line therapy with intrapleural repeated instillation of 9000000 I.U. IL-2 twice/weekly for 4 weeks, after needle thoracenthesis. In nonprogressing patients, 3000000 I.U. IL-2 were subcutaneously administered thrice weekly for up to 6 months. Toxicity (WHO criteria) with intrapleural IL-2 consisted of grade 3 fever in 6/31 (19%) patients and of cardiac toxicity (failure) grade 3 in one patient (3%); toxicity during subcutaneous treatment was mild to moderate, mainly a flu-like syndrome. In 28/31 (90%) of patients there was no further or minimal (asymptomatic) pleural fluid collection (according to Paladine criteria); pleurisy relapsed only in 1/28 patients after 19 months. Tumor objective response (WHO criteria), evaluated by CT, occurred in seven patients (one CR and six PR; ORR 22%); ten patients achieved SD and 14 patients progressed. Median overall survival was 15 months (range 5-39) in all patients. IL-2 intrapleural administration followed by low-dose IL-2 subcutaneously in pleurisy-complicated malignant mesothelioma is feasible and active both in palliation of pleural effusion and on primary tumor, with manageable toxicity. The overall survival observed in nonprogressing patients warrants further randomized studies with IL-2 aimed to the patient outcome.

Adult↗

Evaluation of pleural disease using MR and CT. With special reference to malignant pleural mesothelioma.

PURPOSE: To evaluate MR imaging and CT in differentiating malignant pleural mesothelioma from other malignancies or benign pleural disease. MATERIAL AND METHODS: Thirty-four patients (18 pleural mesotheliomas, 9 other malignancies, 7 benign pleural diseases) were examined using enhanced CT and MR. Two radiologists reviewed the CT and two others the MR images. Comparisons were made between the diagnostic groups and the imaging methods. RESULTS: The abnormalities commonly found in malignant disease, but significantly less frequently in benign pleural disease, were focal thickening and enhancement of interlobar fissures. In mesothelioma, enhancement of interlobar fissures, tumour invasion of the diaphragm, mediastinal soft tissue or chest wall, were significantly more often observed than in other malignancies and MR was the most sensitive method. In other malignancies, invasion of bony structures was a more common finding and was also better shown by MR. The contrast-enhanced T1 fat-suppressed (CET1fs) sequence detected these features better than other MR sequences. CONCLUSION: MR, especially the CET1fs sequence in three planes, gave more information than enhanced CT. Focal thickening and enhancement of interlobar fissures were early abnormalities indicating malignant pleural disease. MR could be clinically useful for differentiating mesothelioma from other pleural diseases.

Adult↗

Percentage reduction of pleural effusion as a simple predictor of pleural scarring in tuberculous pleuritis.

OBJECTIVE: The aim of the present study was to evaluate the utility of serum and pleural fluid biomarkers for predicting residual pleural scarring (RPS) in tuberculous pleuritis. METHODOLOGY: A retrospective study of patients with pleural tuberculosis was performed. Demographic data, clinical parameters, haematological indices, serum and pleural fluid biochemistry and pleural effusion area were assessed for correlation with the extent of RPS. RESULTS: RPS was found in 41.4% of the 70 cases evaluated, with significant pleural scarring being present in 7.1%. It was more common in males (odds ratio 5.55). Among the variables studied, only the percentage reduction of the effusion after 2 weeks of treatment was found to independently predict the extent of RPS (r=-0.502, P<0.001). CONCLUSION: RPS was more common in males and the percentage reduction in pleural effusion on CXR after 2 weeks of treatment was found to be a useful predictor of RPS.

Adolescent↗

Pleural fluid pseudouridine in malignant and benign pleural effusions.

Pseudouridine in urine and plasma has been proved to be a useful tumour marker in many malignant conditions. We studied its usefulness in pleural fluid for distinguishing malignant from non-malignant pleural effusions. Pleural fluid pseudouridine concentrations in different groups of patients with pleural effusion (31 malignant, 29 benign, 16 unknown, 1 double pathology) was measured and compared. Its usefulness in distinguishing malignant from non-malignant pleural effusions was analysed by receiver-operating characteristic (ROC) curve analysis. Pseudouridine concentrations in the malignant group were significantly higher than the non-malignant group (P < 0.017, Bonferroni adjustment) with values overlapping extensively at the lower end. The area-under-the curve (AUC) value in the ROC curve analysis was 0.675 (P < 0.05). We conclude that the pleural fluid pseudouridine is of limited clinical value in distinguishing malignant from non-malignant pleural effusion due to its extensive overlap. However, it is useful when the concentration is higher than 65 mumol/L, which indicates malignancy.

Area Under Curve↗

Are pleural fluid parameters related to the development of residual pleural thickening in tuberculosis?

STUDY OBJECTIVE: Identification of predictive factors for the development of residual pleural thickening (RPT). DESIGN: Retrospective study. LOCATION: A 1,500-bed tertiary hospital. PATIENTS: Patients with pleural tuberculosis diagnosed between December 1991 and February 1995 in our Respiratory Disease Service. INTERVENTIONS: The clinical and radiologic characteristics, and measurements of microbiological and biochemical parameters and markers in pleural fluid were studied. RPT was defined in a posteroanterior chest radiograph as a pleural space of >2 mm measured in the lower lateral chest at the level of an imaginary line intersecting the diaphragmatic dome. MEASUREMENTS AND RESULTS: In 56 patients studied, 11 (19.6%) had RPT 10 mm and 24 (42.8%) had RPT >2 mm. The pleural fluid of patients with RPT 10 mm had a significantly lower glucose concentration and pH and higher lysozyme and tumor necrosis factor-alpha levels than the other patients. The pleural fluid of patients with RPT >2 mm showed no significant differences. CONCLUSIONS: The development of RPT 10 mm was related to higher concentrations of lysozyme and tumor necrosis factor-alpha and lower glucose concentration and pH in pleural fluid compared with development of lower measurements of RPT.

Adolescent↗

Closed pleural biopsy and fluid cytology in the diagnosis of suspected pulmonary cancer with pleural involvement.

In a retrospective study of 44 cases of suspected primary pulmonary cancer with pleural involvement, the diagnostic value of pleural biopsy a.m. Abrams was evaluated. Biopsy specimens in 20 patients showed malignancy, which in 16 cases provided an adequate diagnosis, while 4 patients needed pleural biopsy by means of operation. In a total of 24 cases showing biopsy specimens without malignancy there were 4 false-negative ones. Among the patients under study, closed pleural biopsy combined with pleural fluid cytology proved malignancy in 96% of the cases in which neoplastic disease of the lungs and pleura was otherwise diagnosed. These findings indicate the value of using both fluid cytology and closed pleural biopsy at an early stage of the diagnostic procedure in cases of suspected pulmonary cancer with pleural involvement.

Adult↗

The diagnostic value of the adenosine deaminase activity in the pleural fluid of renal transplant patients with tuberculous pleural effusion.

The assessment of the adenosine deaminase activity (ADA) in the pleural effusion is used for the diagnosis of tuberculous pleural effusion (TPE). To examine whether the procedure can be applied to immunocompromised patients, we analyzed the ADA activity in the pleural fluid of renal transplant recipients. We studied 23 renal transplant patients with TPE (21 men and 2 women; the mean age, 33 years). They were treated at the Yonsei University Hospital between January 1985 and December 2001. Patients with granuloma in the pleural biopsy specimen or positive for Mycobacterium tuberculosis in the pleural fluid culture were recruited. The ADA activity in the pleural effusion of 23 renal transplant patients with TPE was compared with 23 immunocompetent patients with TPE. The mean ADA activity was 69.5 +/- 4.6 in renal transplant patients and 65.0 +/- 4.9 U/L in immunocompetent patients. Applying the 40 U/L cut-off point, the positivity of ADA was 91.3% in renal transplant patients, and 86.9% in immunocompetent patients. We thus concluded that the measurement of ADA in the pleural fluid is a useful means in the diagnosis of TPE in renal transplant patients.

Adenosine Deaminase↗

[The role of thoracoscopy in pleural biopsy in cases with pleural effusion].

Between April 1985 and July 1989, 125 cases with pleural effusion were admitted to our department. The causes of pleural effusion were carcinomatous pleurisy in 47 cases, infection without tuberculosis in 34 cases, tuberculous pleurisy in 17 cases, cardiac insufficiency and hypoproteinemia in 11 cases, trauma and pneumothorax in nine cases, collagen disease in two cases and unknown origin in five cases. Carcinomatous pleurisy and tuberculous pleurisy, the differential diagnosis of which is very important, comprised 37% and 14% of all cases, respectively. These diseases can be definitively diagnosed by pleural biopsy, effusion cytology and/or effusion culture. In July 1987, we introduced thoracoscopy to improve the ratio of definitive diagnoses. The ratio for carcinomatous pleurisy in the previous term, when thoracoscopy was not being used, was 59%, while that in the latter term, when it was used, was 73%. The ratio for all cases with tuberculous pleurisy was 47%. Prior to June 1987, pleural biopsies in our department were performed with a Cope needle. Using that procedure, a low positive ratio of 50% was obtained. For thoracoscopic pleural biopsies, a high positive ratio of 84% was achieved (in carcinomatous pleurisy, 13 out of 15 cases; in tuberculous pleurisy, three out of four cases). This procedure was performed with minimal patient discomfort and no serious complications. Therefore, thoracoscopic pleural biopsy is recommended as a diagnostic procedure for cases with pleural effusion.

Adult↗

Pleural fluid characteristics of patients with symptomatic pleural effusion after coronary artery bypass graft surgery.

BACKGROUND: This study describes the pleural fluid characteristics of patients who develop symptomatic pleural effusions after coronary artery bypass graft surgery (CABG). METHODS: Post-CABG patients who underwent a therapeutic thoracentesis for a symptomatic pleural effusion were included unless another explanation for the pleural effusion was present. RESULTS: During the study, 71 patients (mean age, 61 years) were identified; 49 were men and 22 were women. All patients underwent internal mammary artery grafting. Early effusions (<30 days after CABG) occurred in 45 patients (63%) and late effusions (>/=30 days after CABG) developed in 26 (37%). Early effusions were bloody (median red blood cell count, 706 x 10(12)/L [706,000 mm(3)])with a high eosinophil count (median, 0.385), whereas effusions that occurred in the late period were yellow exudates with predominant lymphocytes (median, 0.68) and monocytes (median, 0.20). The mean pleural fluid level of lactate dehydrogenase was more than 3 times the upper limit of the reference range in serum in early effusions, whereas late effusions had significantly lower lactate dehydrogenase levels. CONCLUSIONS: Characteristics of early and late effusions differ significantly, suggesting a different pathogenesis of the effusions. Patients who develop a symptomatic pleural effusion after CABG should undergo a therapeutic thoracentesis; however, further investigations are warranted only in patients who have pleural fluid characteristics different from those described.

Aged↗

Use of pleural Tenckhoff catheter to palliate malignant pleural effusion.

Malignant pleural effusion and its treatment both cause substantial morbidity in patients with advanced neoplastic disease. We hypothesized that this morbidity might be ameliorated by placement of an indwelling Tenckhoff catheter into the involved pleural space. Catheters were placed in 9 patients under local anesthesia. Three patients underwent bilateral catheter placement, for a total of 12 catheters placed. Four of the 9 patients had undergone previous unsuccessful pleurodesis (using tetracycline or bleomycin). Whenever it became symptomatic, the malignant pleural effusion was simply drained into a calibrated container and the volume recorded. Patients were followed on a weekly basis until their death (mean, 16 weeks). The mean drainage was 477 mL per 24 hours (range, 200 to 1,100 mL). No pleural space infections occurred, although local cellulitis developed in 3 patients around the catheter exit site; all patients responded to oral antibiotics. There were no significant changes in either the serum albumin or total protein levels. No catheters malfunctioned and no patients required further treatment or hospitalization for symptoms of malignant pleural effusion. We conclude that this technique may reduce the morbidity stemming from malignant pleural effusion and its treatment by allowing patients to conveniently and painlessly drain the effusion at home when it becomes symptomatic. This technique may provide superior palliation in patients with malignant pleural effusion.

Adult↗

Left pleural effusion after coronary artery bypass decreases with a supplemental pleural drain.

BACKGROUND: This prospective study was undertaken to determine the incidence of symptomatic left pleural effusion after coronary artery bypass grafting, and to determine if routine drainage of the pleural cavity with a supplemental flexible drain reduces this incidence. METHODS: The clinical course of study patients was prospectively recorded during the initial hospitalization and at 6-weeks after surgery. All patients had a mediastinal and a left pleural tube, which were removed on the 1st postoperative day. The supplemental drain system was implanted in a subset of patients and remained in place for 3 to 5 days. A symptomatic effusion was defined as one that required thoracentesis, tube thoracostomy, or readmission for treatment. RESULTS: A total of 460 patients were studied, of whom 115 had a supplemental drain. The two groups (supplemental drain versus control) were equivalent with respect to age, gender distribution, and comorbid diseases. The incidence of symptomatic left pleural effusion for the entire group was 9.8% (45 of 460). Symptomatic left pleural effusion occurred in 11.9% (41 of 345) patients when only chest tubes were used, and in 3.5% (4 of 115) when a supplemental drain was placed. This difference was significant (F ratio 7.583, p < 0.005). There were no complications from the supplemental drain. CONCLUSIONS: The incidence of symptomatic left pleural effusion can be greatly reduced with the use of a supplemental pleural drain that remains in place for several days after surgery.

Aged↗

Pleural cytologies in lung cancer without pleural effusions.

BACKGROUND: Malignant pleural effusions significantly increase the stage of lung cancer with attendant worsening of prognosis. There is a paucity of literature evaluating malignant pleural lavage cytology in patients without pleural effusions. We propose to determine the incidence of malignant pleural cytologies in patients without pleural effusions who undergo curative resection for lung cancer and to identify any predictive risk factors for positive cytology. METHODS: Seventy-eight patients underwent curative resection for lung cancer. Lavage was performed before lung manipulation and after resection and cytologically evaluated. RESULTS: Twelve pneumonectomies, 64 lobectomies, and 2 wedge resections were performed on 40 men and 38 women with an average age of 65.7 years. Fourteen percent had positive lavage cytology before lung resection with an 11% (6 of 53) incidence in stage I. A significant correlation to adenocarcinoma compared with squamous cell was found (p = 0.03) but not to stage, T or N status, grade, pleural invasion, or preoperative transthoracic needle biopsy. CONCLUSIONS: The incidence of positive pleural cytology in otherwise stage I patients is disconcertingly high. Positive cytology may be a prognosticator of a more aggressive tumor biology.

Adult↗