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Incidence and risk factors of delayed pneumothorax after transthoracic needle biopsy of the lung.

STUDY OBJECTIVES: To evaluate the incidence and clinical significance of delayed pneumothorax, and to analyze the influence of multiple variables on the rate of delayed pneumothorax associated with transthoracic needle biopsy (TTNB) of the lung. STUDY DESIGN: Prospective study. SETTING: Tertiary care university hospital. STUDY SUBJECTS: Adult patients underwent TTNB from June 2001 to June 2002. MEASUREMENTS AND RESULTS: Among the 458 patients included in this study, 280 fluoroscopic-guided, 21 CT-guided, and 157 ultrasonography-guided lung biopsies were performed. A follow-up chest radiograph was obtained immediately, and 3 h, 8 h, and 24 h after the biopsy procedure. Pneumothorax that had not developed up to 3 h but developed later was defined as a delayed pneumothorax. Patients with a symptomatic or enlarged pneumothorax were treated using a pigtail catheter or chest tube. Variables such as age, gender, lesion size, location, presence of an emphysematous change, biopsy guidance methods, and biopsy devices were analyzed. Pneumothorax developed in 100 of the 458 patients (21.8%), and delayed pneumothorax developed in 15 patients (3.3%). Seventeen patients, including 3 patients with delayed pneumothorax, required a pigtail catheter or a chest tube insertion. The pigtail catheter or chest tube insertion rate in delayed pneumothorax was 20% (3 of 15 patients). Female gender and the absence of an emphysematous change correlated with an increased rate of delayed pneumothorax (p < 0.05). Lesion size, location, biopsy guidance methods, devices, and underlying diseases were not correlated with the delayed pneumothorax rate. CONCLUSIONS: The incidence of delayed pneumothorax was 3.3% of all TTNBs. Female gender and the absence of an emphysematous change were identified as risk factors for delayed pneumothorax. Delayed pneumothorax is clinically important because of its considerable incidence and the necessity for pigtail catheterization or chest tube insertion in these patients.

Adult↗

Incidence, management, and outcome of childhood empyema: a prospective study of children in Cambodian refugee camps.

To determine the incidence, outcome, and optimal management of empyema, all children less than 15 years of age admitted to Khao-I-Dang Hospital with a diagnosis of empyema during a 23-month period were prospectively studied. Khao-I-Dang Hospital provides care to 137,000 Cambodian children residing in eight refugee camps along the Thai-Cambodian border. Ninety-eight children with empyema were identified, for an annual incidence of 0.37 cases per 1,000 children. All patients had chest tubes inserted on admission, and all were treated with parenteral antibiotics, which included chloramphenicol in 92% of the patients and cloxacillin in 72%. Patients were hospitalized a mean of 30 days, and chest tubes were in place for a mean of 12 days. Surgery was performed on four patients who had bronchopleural fistulas that persisted for more than 14 days. Only one (1%) of the 70 patients treated with cloxacillin required thoracotomy, compared with three (11%) of the 28 patients who did not receive cloxacillin (P = 0.07). In a multiple regression analysis, the presence of pneumatoceles or mediastinal shift on admission chest radiograph, a history of tuberculosis in the family, and an age of more than five years were predictive of a longer duration of chest tube drainage. No patient died in the hospital, and only one patient died in the six months following discharge from the hospital. Chest radiographs that were obtained six months after discharge in 25 patients were all essentially normal, despite marked abnormalities on chest radiographs obtained at discharge. In summary, conservative medical management with the use of chest tubes for these 98 children with empyema resulted in a mortality rate of 1.0%, and should be considered as an effective alternative to the surgical management of patients presenting with this complication.

Adolescent↗

Hydatid cysts of the lung in childhood: is capitonnage advantageous?

In the treatment of thoracal hydatid cysts, there is not an agreement whether the cyst cavity to be capitonnaged or not. In this retrospective study, it was aimed to compare the cases of capitonnaged and not capitonnaged thoracal hydatid cysts with regard to hospital stay and post-operative chest tube removal day. Documents of 15 patients operated for pulmonary hydatid cysts in our clinic were reviewed. In 7 cases pericystectomy and removal of germinative membrane was performed whereas in 8 patients capitonnage was added to the procedure. In all cases open airways were suture controlled and pleural cavity was drained with chest tube connected to waterseal system. Average hospital stay of capitonnaged cases was 8 days and of uncapitonnaged ones was 12 days. Thoracal drainage tubes were removed in an average of 4 post-operative days in capitonnaged cases and of 7 days in the others. Statistical analysis were made by Mann-Whitney U test. Difference between the hospital stays of the 2 groups were not significant, whereas it was significant statistically between chest tube removal days (p<0.05). Capitonnage shortens postoperative chest tube drainage period in pulmonary hydatid cysts, resulting in lower morbidity compared with the uncapitonnaged cases.

Adolescent↗

Complicated parapneumonic effusion and empyema thoracis: microbiologic and therapeutic aspects.

Patients with pleural infections have a high risk of morbidity and mortality with prolonged hospitalization. The best methods for treating pleural infections remain debatable. Although the increasing drainage volume effect of streptokinase adjunctive to chest-tube, is well known, its effect on clinical outcomes like duration of hospitalization and need for further surgery, remains controversial. The aim of this study was to analyze the etiological and microbiological factors for pleural infections, and assess the effect of streptokinase adjunctive to chest tube for clinical outcomes. Charts of patients with a chest disease department discharge diagnosis of complicated parapneumonic effusion or empyema were retrospectively reviewed. Of the 107 patients (85 male), the mean age was 47.9+/-17.1 years. The most frequently shown bacteriological agent was Staphylococcus aureus. Drainage with thoracentesis was used in 44 patients (group 1); chest tube was performed in 44 patients (group 2) and intrapleural streptokinase was given after chest tube insertion in 19 patients (group 3). Mean hospitalization time in group 1 was shorter than the other two groups (P<0.05), but there was no significant difference between group 2 and 3. Our mortality rate was 8.4%. Success rates were 95.4%, 65.9% and 78.5% in groups 1, 2, and 3, respectively (P>0.05). Intrapleural streptokinase is a safe procedure but it did not effect the duration of hospitalization, mortality and success rate. Mortality remains especially high in patients with concomitant disease.

Adult↗

A comparison of rotation and nonrotation in tetracycline pleurodesis.

Previously, we have shown rapid and complete dispersion of tetracycline hydrochloride in the pleural space following chest tube instillation. To assess the clinical relevance of this observation, we randomized patients with symptomatic pleural effusions to rotation (R) (n = 19) and nonrotation (NR) (n = 21) groups following administration of tetracycline hydrochloride, 20 mg/kg (n = 30); 300 mg of minocycline hydrochloride (n = 6); and 500 mg of doxycycline hydrochloride (n = 4) through a chest tube. Patients in the R group were maneuvered through six positions for the 2 h that the chest tube remained clamped. The NR patients remained supine for 2 h. Rotation and nonrotation groups were similar in demographics, source of pleural effusion, symptoms, and serum and pleural fluid analyses (all p = NS). A chest radiograph was scored based on pleural fluid recurrence throughout survival or up to 12 months. Survival, duration of chest tube instillation, and success of pleurodesis assessed by radiographic pleural fluid reaccumulation (73.7 vs 61.9 percent; R vs NR) were similar (p = NS). Rotational maneuvers appear to offer no benefit to the success of pleural symphysis after intrapleural instillation of tetracycline class agents.

Aged↗

Induction of wide QRS tachycardia during transthoracic echocardiography.

A wide QRS tachycardia was repeatedly triggered during transthoracic echocardiographic examination in a critically ill premature infant with bilateral chest tubes. The left-sided tube was anterior to the heart. The arrhythmia was not induced after removal of the chest tubes at the follow-up ultrasonographic evaluation. Compression of the thoracic wall and chest tube, and subsequently the heart, by the ultrasound transducer is postulated as the cause for this wide QRS tachycardia.

Chest Tubes↗

Horner's syndrome as a complication in thoracic surgical practice.

OBJECTIVE: To determine the incidence, reasons and prognosis about Horner's syndrome in thoracic surgical patients. METHODS: In this prospective clinical study, 933 adult patients were assessed between the years of 1998 and 2002. All patients who underwent chest tube insertion (n: 662 patients) or thoracotomy (n: 342 patients), or who had thoracic trauma (n: 268 patients) were routinely examined to detect of Horner's syndrome. The patients with Horner's syndrome due to the invasion of malignant tumour to sympathetic chain were not included in the study. RESULTS: Horner's syndrome was detected in twelve patients from these 933 patients (1.3%). The considered etiologic factors were chest tube pressure in five patients, operative complication in two patients and trauma in five patients. In patients with chest tube pressure were fully recovered from Horner's syndrome but the remaining did not. CONCLUSIONS: Malposition of the chest tube is an important aetiological factor of Horner's syndrome, and it is reversible if the tube position is corrected urgently.

Adolescent↗

Comparison of water seal and suction after pulmonary lobectomy: a prospective, randomized trial.

BACKGROUND: The objective of the present study was to assess whether placing chest tubes on water seal after pulmonary lobectomy reduced the duration of air leak compared with suction. METHODS: One hundred forty-five patients who underwent pulmonary lobectomy for lung cancer and with an air leak on the first postoperative day were prospectively randomly assigned to two groups: in group 1 (72 patients), chest tubes were placed on water seal on the morning of the first postoperative day; in group 2 (73 patients), chest tubes were on continuous suction (-20 cm H(2)O). Eighty percent of the patients who underwent upper lobectomy had also a pleural tent procedure. Preoperative, operative, and postoperative variables were compared between the groups. RESULTS: The two groups were evenly matched for preoperative and operative characteristics. No statistically significant differences were found between group 1 and group 2 in terms of air leak duration (6.5 versus 6.3, respectively; p = 0.9) and the incidence of prolonged air leak cases (27.8% versus 30.1%, respectively; p = 0.8). Similar results were obtained when the analysis was corrected for the length of the stapled parenchyma and the site of resection (upper and lower resections) or restricted to patients with a forced expiratory volume in 1 second less than 80% of predicted. Water seal patients had increased postoperative complications compared with suction patients (31.9% versus 17.8%, respectively; p = 0.056). CONCLUSIONS: Chest tubes placed on water seal after pulmonary lobectomy were generally well tolerated and safe; however, they did not reduce the duration of air leak or the incidence of prolonged air leak compared with suction.

Aged↗

Outcome of parapneumonic empyema.

OBJECTIVE: Empyema thoracis is known to have variable age group affection, causative agents and controversy regarding primary mode of management. To look into current demography, bacteriology and treatment outcome. METHODS: Prospective study made on admitted cases of parapneumonic empyema from July 2001 to June 2003. All cases were treated with chest tube drainage, parenteral antibiotics or thoracotomy in multiloculated or non-improving cases. RESULTS: 0.8% (C.I. 0.6-1.0) of total pediatric admission had empyema, who were more likely to be females (P< 0.05), under-weight (P< 0.05) compared to children admitted for other reasons. Staphylococcus aureus is still the commonest isolate (13.2%). All cases received antibiotics prior to hospitalisation. Majority of cases (90.5%) could be successfully managed with antibiotics and chest tube drainage alone. 9.4% cases needed thoracotomy. 5.8% cases needed salvage thoracotomy following non-improvement with chest tube drainage. Fever remission time and duration of hospital stay were comparable in both groups. Thoracotomy cases required antibiotics for shorter period (P=0.04). Two cases died due to reasons other than mode of management. Radiological and lung function recovery was excellent in most of the cases. CONCLUSION: Chest tube drainage is a safe, efficacious primary method of empyema management.

Adolescent↗

Predicting and treating coagulopathies after cardiopulmonary bypass in children.

UNLABELLED: Coagulopathies in children after cardiopulmonary bypass (CPB) are complex. There are very limited data correlating coagulation tests with postoperative bleeding. We evaluated coagulation changes after CPB and after the administration of coagulation products to 75 children. Baseline coagulation tests were obtained and repeated after protamine administration, after transfusion of individual coagulation products, and on arrival in the intensive care unit (ICU). Regression analysis demonstrated no baseline coagulation test to predict postoperative chest tube drainage. Weight and duration of CPB were determined to be the only predictors of bleeding. Further analyses demonstrated that children <8 kg had more bleeding and required more coagulation products than children >8 kg. Postprotamine platelet count and fibrinogen level correlated independently with 24-h chest tube drainage in children <8 kg, whereas postprotamine platelet count and thrombelastographic values did so in patients weighing >8 kg. Platelet administration alone was found to restore effective hemostasis in many patients. With ongoing bleeding, cryoprecipitate improved coagulation parameters and limited blood loss. Fresh-frozen plasma administration after platelets worsened coagulation parameters and was associated with greater chest tube drainage and more coagulation product transfusions in the ICU. Objective data to guide post-CPB component therapy transfusion in children are suggested. IMPLICATIONS: Children <8 kg can be expected to have more severe coagulopathies, require more coagulation product transfusions, and bleed more after cardiopulmonary bypass. Correlations between coagulation tests and postoperative chest tube drainage are defined. Platelets and, if necessary, cryoprecipitate optimally restore hemostasis. Fresh-frozen plasma offers no benefits in correcting postcardiopulmonary bypass coagulopathies in children.

Anticoagulants↗

Prospective randomized trial compares suction versus water seal for air leaks.

BACKGROUND: Surgeons treat air leaks differently. Our goal was to evaluate whether it is better to place chest tubes on suction or water seal for stopping air leaks after pulmonary surgery. A second goal was to evaluate a new classification system for air leaks that we developed. METHODS: Patients were prospectively randomized before surgery to receive suction or water seal to their chest tubes on postoperative day (POD) #2. Air leaks were described and quantified daily by a classification system and a leak meter. The air-leak meter scored leaks from 1 (least) to 7 (greatest). The group randomized to water seal stayed on water seal unless a pneumothorax developed. RESULTS: On POD #2, 33 of 140 patients had an air leak. Eighteen patients had been preoperatively randomized to water seal and 15 to suction. Air leaks resolved in 12 (67%) of the water seal patients by the morning of POD #3. All 6 patients whose air leak did not stop had a leak that was 4/7 or greater (p < 0.0001) on the leak meter. Of the 15 patients randomized to suction, only 1 patient's air leak (7%) resolved by the morning of POD #3. The randomization aspect of the trial was ended and statistical analysis showed water seal was superior (p = 0.001). The remaining 14 patients were then placed to water seal and by the morning of POD #4, 13 patients' leaks had stopped. Of the 32 total patients placed to seal, 7 (22%) developed a pneumothorax and 6 of these 7 patients had leaks that were 4/7 or greater (p = 0.001). CONCLUSIONS: Placing chest tubes on water seal seems superior to wall suction for stopping air leaks after pulmonary resection. However, water seal does not stop expiratory leaks that are 4/7 or greater. Pneumothorax may occur when chest tubes are placed on seal with leaks this large.

Adolescent↗

Neonatal phrenic nerve paralysis resulting from intercostal drainage of pneumothorax.

Four cases of phrenic nerve paralysis complicating chest tube placement in the newborn for pneumothorax are presented. This complication is related to abnormal location of the medial end of the chest tube. It is suggested that on the frontal chest radiograph, the medial end of the chest tube should be no less than 1 cm from the spine.

Chest Tubes↗

Factors influencing pneumothorax rate at lung biopsy: are dwell time and angle of pleural puncture contributing factors?

PURPOSE: To study factors that may influence pneumothorax and chest tube placement rate, especially needle dwell time and pleural puncture angle. MATERIALS AND METHODS: In 159 patients, 160 coaxial computed tomography (CT)-guided lung biopsies were performed. Dwell time, the time between pleural puncture and needle removal, was calculated. The smallest angle of the needle with the pleura ("needle-pleural angle") was measured. These and other variables were correlated with pneumothorax and chest tube rates. RESULTS: One hundred fifty biopsies were included. There were 58 (39%) pneumothoraces (14 noted only at CT), with eight (5%) biopsies resulting in chest tube placement. Longer dwell times (mean, 29 minutes; range, 12-66 minutes) did not correlate with pneumothoraces (P =.81). Smaller needle-pleural angles (< 80 degrees) [corrected], decreased forced expiratory volume in 1 second to vital capacity ratio (<50%), lateral pleural puncture, and lesions along fissures were associated with higher [corrected] pneumothorax rates (P <.05). Emphysema along the needle path, pulmonary function tests showing ventilatory obstruction, and lesions along fissures predisposed patients to chest tube placement (P <.05). Pleural thickening and prior surgery were associated with lower pneumothorax rates (P <.05). CONCLUSION: Longer dwell times do not correlate with pneumothorax and should not influence the decision to obtain more biopsy samples. A shallow pleural puncture angle may increase the pneumothorax rate.

Aged↗

Suction versus water seal after thoracoscopy for primary spontaneous pneumothorax: prospective randomized study.

BACKGROUND: The objectives of the study were to review our experience of video-assisted thoracoscopic apical pleurectomy and to evaluate whether suction or water seal is superior in the postoperative treatment of primary spontaneous pneumothorax. METHODS: One hundred consecutive patients undergoing thoracoscopy for primary spontaneous pneumothorax from January 1995 to December 1999 were prospectively randomly assigned after surgery to receive suction or water seal to their chest tubes after a brief period of suction. RESULTS: There were 50 patients in each group. The two groups were evenly matched for age and operation performed. The method of management was stapling of an identified bleb or apex of the upper lobe and apical pleurectomy. Postoperative prolonged air leak longer than 5 days occurred in 8 patients (8%), 7 in the suction group and 1 in the water seal group (p = 0.03). The mean duration of chest tube days was lower in the water seal group (2.7 days) than in the suction group (3.8 days; p = 0.004). The mean hospital stay in the water seal group was 3.7 days and in the suction group it was 4.8 days (p = 0.004). Mean follow-up was 48 months (range, 30 to 60) for all patients. Pneumothorax recurred in 2 patients (2%). The recurrences occurred in the first year. CONCLUSIONS: Video-assisted thoracoscopic apical pleurectomy is effective and safe for treating primary spontaneous pneumothorax. Placing chest tubes on water seal after a brief period of suction shortens the duration of chest tube placement and hence the hospital stay.

Adolescent↗

Intrapleural streptokinase versus urokinase in the treatment of complicated parapneumonic effusions: a prospective, double-blind study.

Intrapleural administration of fibrinolytics has been shown in small numbers of patients with complicated parapneumonic effusions (CPE) and pleural empyema to be effective and relatively safe. Although streptokinase (SK) is recommended as the fibrinolytic of choice, there are no comparative studies among fibrinolytics. We therefore compared the efficacy, safety, and the cost of treatment two of the most used thrombolytics, SK and urokinase (UK). Fifty consecutive patients with CPE or empyema were randomly allocated to receive either SK (25 patients) or UK, in a double-blind fashion. All patients had inadequate drainage through chest tube (< 70 ml/24 h). Both drugs were diluted in 100 ml normal saline and were infused intrapleurally through the chest tube in a daily dose of 250,000 IU of SK or 100,000 IU of UK. The chest tube was clamped for 3 h after instillation. Response was assessed by clinical outcome, fluid drainage, chest radiography, pleural ultrasound, and/or computed tomography. Clinical and radiologic improvement was noted in all but two patients in each group, who required surgical intervention. The mean volume drained during the first 24 h after instillation was significantly increased; 380 +/- 99 ml for the SK group (p < 0.001) and 420.8 +/- 110 ml for the UK group (p < 0.001). The total volume (mean +/- SD) of fluid drained after treatment was 1,596 +/- 68 ml for the SK group, and 1,510 +/- 55 ml for the UK group (p > 0.05). The SK instillations (mean +/- SD) were 6 +/- 2.16 (range, 3 to 10) and those of UK 5.92 +/- 2.05 (range, 3 to 8). High fever as adverse reaction to SK was observed in two patients. The total cost of the drug in the UK group was two times higher than that of SK ($180 +/- 47 for SK and $320 +/- 123 for UK). The mean total hospital stay after beginning fibrinolytic therapy was 11.28 +/- 2.44 d (range, 7 to 15) for the SK group and 10.48 +/- 2.53 d (range, 6 to 18) for the UK group (p = 0.32). We conclude that intrapleural SK or UK is an effective adjunct in the management of parapneumonic effusions and may reduce the need for surgery. UK could be the thrombolytic of choice given the potentially dangerous allergic reactions to SK and relatively little higher cost of UK.

Adolescent↗

Transthoracic needle aspiration biopsy: variables that affect risk of pneumothorax.

PURPOSE: To analyze the influence of multiple variables on the rate of pneumothorax and chest tube placement associated with transthoracic needle aspiration biopsy of the lung. MATERIALS AND METHODS: In 346 patients, 331 computed tomographically (CT) guided and 24 fluoroscopically guided lung biopsies were performed. Variables analyzed were lesion size, depth, and location; number of pleural passes; needle size; presence of emphysema; and training level of the person who performed the biopsy. RESULTS: Pneumothorax occurred at 144 (40.4%) of 356 biopsies, including 139 (42.0%) CT-guided and five (21%) fluoroscopically guided biopsies. Chest tube placement was needed in 25 (17.4%) of 144 cases of pneumothorax (7% of all biopsies). An increased rate of pneumothorax was correlated with smaller lesion size (P = .001) and presence of emphysema (P = .01). Patients with emphysema were three times as likely to require chest tube placement. The pneumothorax rate was 15% (16 of 105) if no aerated lung was traversed and approximately 50% if aerated lung was penetrated. Lesion location, needle size, number of pleural passes, and level of training were not correlated with pneumothorax rate. CONCLUSION: Smaller lesion size and emphysema are strongly correlated with occurrence of pneumothorax. Pneumothorax was more than three times less frequent if no aerated lung was traversed. After pneumothorax, chest tube placements were related to the presence of emphysema.

Adolescent↗

Delayed pulmonary perforation. A rare complication of tube thoracostomy.

Tube thoracostomy is a standard therapy for a number of pulmonary disorders. The procedure is associated with a certain incidence of morbidity related to the technique of insertion, the patient population selected, and the length of time the tube remains in place. Complications of tube placement previously described include empyema, residual pneumothorax, lung perforation, placement of the tube in the chest wall, diaphragmatic perforation, perforation of intraabdominal organs (such as spleen, liver and stomach), unilateral pulmonary edema, bronchopleural fistula, hemothorax, cardiogenic shock and Horner syndrome. A case of a delayed pulmonary perforation developing several days after placement of a chest tube is described with a discussion of the clinical and radiographic findings associated with this complication. A possible pathophysiologic mechanism by which this complication may have occurred is proposed.

Aged↗

Thoracoscopic application of a topical sealant for the management of persistent posttraumatic pneumothorax.

BACKGROUND: Persistent posttraumatic pneumothorax (PPP) is an uncommon complication of blunt or penetrating chest trauma. Currently, most patients are managed with pleural chest tube(s) and suction drainage. Prolonged hospital stay and added cost of care are not uncommon. METHODS: Over a 2-year period, 13 patients with PPP, nonresponsive to conventional management, underwent video-assisted thoracoscopic surgery (VATS). As part of our protocol for PPP, routine preoperative computed tomography of the chest and bronchoscopy to determine the presence of associated injuries were performed in all of the patients. During the VATS procedure, all of the patients underwent drainage of any retained hemothorax, and a topical surgical sealant was applied to the source of the air leak as definitive treatment. RESULTS: A persistent pneumothorax with an air leak was identified in all 13 of the patients. There were 10 patients with blunt and 3 patients with penetrating injuries, respectively. The mean age for the patients was 34 years (range, 13 to 64 years). Parenchymal lacerations were identified in all of the patients ranging in size from 0.5 to 3 cm. After the VATS procedure and application of the surgical sealant, 11 patients had the chest tubes removed within 24 hours of the procedure. In the other two patients, the chest tubes were removed within 48 hours. There was no recurrence of the pneumothorax in any of these patients. The mean length of hospital stay before VATS and the application of the surgical sealant was 6 days (range, 2-14 days). CONCLUSION: Early VATS and the use of a topical sealant in patients with PPP is a safe and effective alternative to the conventional management with prolonged thoracostomy chest tubes or an open thoracostomy. This alternative management, when used early in the appropriate patient, will decrease the length of hospital stay, cost of care, and unnecessary procedures.

Administration, Topical↗