Patient perspectives on management of pneumothorax in lymphangioleiomyomatosis

STUDY OBJECTIVES

The American College of Chest Physicians Delphi Consensus Statement on management of spontaneous pneumothorax recommended pleurodesis after the first secondary spontaneous pneumothorax to prevent recurrence, and evaluation of patients' perspectives regarding pneumothorax treatment was identified as a future research priority. Patients with lymphangioleiomyomatosis (LAM) are an ideal population for performing these studies, since pneumothorax occurs and recurs more commonly in LAM than in any other chronic pulmonary disorder.

STUDY DESIGN AND PARTICIPANTS

A 23-item questionnaire evaluating opinions of pneumothorax treatment was distributed to 615 patients in the LAM Foundation patient database, with a response rate of 52%.

RESULTS

Of respondents, 69% (216 of 314 patients) reported a history of radiographically documented pneumothorax, and 181 patients (84%) reported at least one pleurodesis procedure. Neither a history of pneumothorax nor surgical management of pneumothorax affected reported oxygen use or perception of overall lung function, yet 41% thought that their pneumothorax had contributed to a decline in lung function. Few patients (12%) worried frequently about a pneumothorax developing, but one third made lifestyle modifications due to fear of pneumothorax. Extensive pain associated with chest tube placement and inadequate pain management throughout treatment for pneumothorax were frequent concerns. Only 25% of respondents thought that pleurodesis was appropriate for a first pneumothorax, while 60% favored pleurodesis for a second pneumothorax. Despite the apparent reluctance to undergo pleurodesis, most patients agreed that pleurodesis helps prevent pneumothorax recurrence. One third of patients believed that their physicians did not consider their preferences regarding pneumothorax management.

CONCLUSIONS

LAM patients and physicians may have different views about the significance of pneumothorax, in that most patients appear to favor a conservative initial approach to pneumothorax management. In conjunction with appropriate pain management, a better understanding of patients' perspectives will facilitate cooperative decision making and may ultimately improve clinical outcomes in LAM related to pneumothorax.

CT of pleural abnormalities in lymphangioleiomyomatosis and comparison of pleural findings after different types of pleurodesis

OBJECTIVE

The objective of our article was to describe the spectrum and frequency of pleural abnormalities on CT in patients with lymphangioleiomyomatosis (LAM) and the pleural findings associated with different types of pleurodesis (talc, mechanical, and chemical) performed to treat the complications of pleural disease in these patients.

MATERIALS AND METHODS

Two hundred fifty-eight patients with LAM underwent CT of the chest. Pleural abnormalities assessed included pleural thickening, presence of a pleural mass, areas of high attenuation, effusion, and pneumothorax. In patients who had had pleurodesis, the CT findings were correlated with the type of procedure performed.

RESULTS

One hundred thirty-three (52%) of 258 patients had pleurodesis (unilateral, 68/133; bilateral, 65/133). Pleural abnormalities were more common in patients who had pleurodesis (101/133, 76%) than in those who had not (47/125, 38%) and were more prevalent on the operated side than on the unoperated side of those 68 patients who had unilateral pleurodesis. The frequencies of findings for the group without pleurodesis versus the group with pleurodesis were pleural thickening (26% vs 65%), effusion (10% vs 13%), loculated effusion (2.4% vs 11%), pneumothorax (1.6% vs 10%), areas of high attenuation (1.6% vs 23%), and mass (0.8% vs 14%), respectively. Areas of high attenuation in the pleura were present in all types of pleurodesis (mechanical, 8%; chemical, 13%; talc, 40%) and in two patients who had had repeated thoracentesis or pleurectomy. Pleural masses were present in patients who had had all types of pleurodesis (mechanical, 10%; chemical, 9%; talc, 24%) and in one patient who had had thoracentesis and thoracostomy; the masses commonly enhanced and did not change in size over time.

CONCLUSION

Pleural abnormalities are common in patients with LAM as complications of the disease itself and as sequelae of pleurodesis and other pleura manipulations. Pneumothorax and pleural effusion result from the underlying pathophysiology of LAM, whereas areas of high attenuation and masses develop after all types of pleurodesis and other manipulations of the pleura (i.e., thoracentesis, thoracostomy).

Management of pneumothorax in lymphangioleiomyomatosis: effects on recurrence and lung transplantation complications

STUDY OBJECTIVES

Pneumothorax is a common complication of lymphangioleiomyomatosis (LAM), and the optimal approach to its treatment and prevention is unknown. Chemical or surgical pleurodesis are often required to prevent recurrence. However, their efficacy in LAM is unclear, and whether they contribute to perioperative complications during lung transplantation is uncertain.

SETTING

The LAM Foundation database of registered patients.

DESIGN

A questionnaire was sent to all registered patients who had at least one pneumothorax to determine rates and patterns of recurrence and efficacy of interventions. A second questionnaire was sent to registered LAM patients who received a lung transplant.

PATIENTS OR PARTICIPANTS

Of 395 registered patients, 260 patients (66%) reported at least one pneumothorax during their lifetime, 193 of whom (74%) completed the questionnaire. Of the 85 lung transplant patients who were sent a separate questionnaire, 80 patients (94%) responded.

INTERVENTIONS

None.

MEASUREMENTS AND RESULTS

Of the 193 respondents to the pneumothorax questionnaire, data on 676 episodes of pneumothorax were collected. Eighty-two percent (158 of 193 patients) had their first pneumothorax prior to a diagnosis of LAM. One hundred forty patients (73%) had at least one additional pneumothorax, either an ipsilateral recurrence (99 of 140 patients, 71%) or a contralateral pneumothorax (104 of 140 patients, 74%). Recurrence rates were 66% after conservative therapy, 27% after chemical pleurodesis, and 32% after surgery. In patients who had undergone lung transplantation, prior chemical or surgical pleurodesis was performed in 45 of 80 patients (56%). Fourteen of 80 patients (18%) reported pleural-related postoperative bleeding, 13 of whom (93%) had prior pleurodesis.

CONCLUSIONS

Chemical pleurodesis or surgery are equally effective and better than conservative therapy in preventing recurrence of pneumothorax in LAM. Due to the high recurrence rate, either procedure should be considered for the initial pneumothorax in these patients. However, both contribute to increased perioperative bleeding following lung transplantation, with no effect on length of hospital stay.

The evidence on the effectiveness of management for malignant pleural effusion: a systematic review

The aim of this study was to review systematically the available evidence on pleurodesis for malignant effusion, focusing on the choice of the agents, route of delivery and other strategies to improve outcomes. Four electronic databases (MEDLINE, EMBASE, Web of Science and Cochrane Controlled Trials Register) were searched, reference lists checked and letters requesting details of unpublished trials and data sent to authors of previous trials. Studies of malignant pleural effusion in humans were selected with no language restrictions applied. Criteria for randomised clinical trial (RCT) eligibility were random allocation of patients and non-concurrent use of another experimental medication or device. Methodological quality evaluation of the trials was based on randomisation, blinding, allocation concealment and intention to treat analysis. A random effect model was used to combine the relative risk estimates of the treatment effects whenever pooling for an overall effect was considered appropriate. Forty-six RCTs with a total of 2053 patients with malignant pleural effusions were reviewed for effectiveness of pleurodesis. Talc tended to be associated with fewer recurrences when compared to bleomycin (RR, 0.64; 95% CI, 0.34-1.20) and, with more uncertainty, to tetracycline (RR, 0.50; 95% CI, 0.06-4.42). Tetracycline (or doxycycline) was not superior to bleomycin (RR, 0.92; 95% CI, 0.61-1.38). When compared with bedside talc slurry, thoracoscopic talc insufflation was associated with a reduction in recurrence (RR, 0.21; 95% CI, 0.05-0.93). Strategies such as rolling the patient after instillation of the sclerosing agent, protracted drainage of the effusion and use of larger chest tubes were not found to have any substantial advantages. Talc appears to be effective and should be the agent of choice for pleurodesis. Thoracoscopic talc insufflation is associated with fewer recurrences of effusions compared with bedside talc slurry, but this is based on two small studies. Where thoracoscopy is unavailable bedside talc pleurodesis has a high success rate and is the next best option.

[Pleurodesis using autologous blood plus OK-432 for intractable spontaneous pneumothorax with high surgical risk]

Air leakage persisted from the lung in three cases of spontaneous pneumothorax. Pleurodesis with autologous blood ended in failure. Autologous blood plus OK-432 was instilled into the thoracic cavity from the chest drainage tube. Air leakage was stopped without serious side effects and the chest tube was removed uneventfully. Although the long-term outcome of this treatment is not known, pleurodesis using autologous blood plus OK-432 may be an effective way of treatment for spontaneous pneumothorax in cases with high surgical risk.

[Sudden chest pain and shortness of breath in a young man]

Wir berichten über einen jungen bisher gesunden Patienten, der sich mit plötzlich in Ruhe aufgetretenen Thoraxschmerzen notfallmässig in unserer Sprechstunde vorgestellt hat. Das Leitsymptom Thoraxschmerzen wird in der Hausarztpraxis häufig angetroffen. Differentialdiagnostische Überlegungen des Leitsymptoms Thoraxschmerzen werden diskutiert. Schon die gründliche klinische Untersuchung, mit abgeschwächtem Atemgeräusch, hypersonorem Klopfschall und vermindertem Stimmfremitus führte in diesem Fall zu der Diagnose eines Pneumothorax, welcher radiologisch gesichert werden konnte. Je nach Grösse, Lokalisation und Symptomatik ist die Therapie unterschiedlich. Aufgrund der persönlichen Risikofaktoren für ein Rezidiv und des ausdrücklichen Wunschs des Patienten wurde schon bei erster Episode thorakoskopisch eine Talkpleurodese durchgeführt.

Influence of antiinflammatory drugs (methylprednisolone and diclofenac sodium) on experimental pleurodesis induced by silver nitrate or talc

STUDY OBJECTIVE

To determine whether the administration of antiinflammatory drugs interferes with experimental pleurodesis induced by silver nitrate or talc.

STUDY DESIGN

Two groups of 30 white New Zealand rabbits were scheduled to receive an intrapleural injection of 0.5% silver nitrate or 400 mg/kg of talc. Each group was further classified into three subgroups (10 animals each), which received the following: (subgroup 1) the sclerosing agent only, (subgroup 2) the sclerosing agent plus 1 mg/kg of methylprednisolone, and (subgroup 3) the sclerosing agent plus 1.1 mg/kg of diclofenac sodium. The antiinflammatory agents were administered IM 24 h before the sclerosing agent and daily during the first week, followed by once-weekly injections until death at 28 days. At this time, the pleural cavity was macroscopically evaluated, and samples of pleura and lungs were collected for further microscopic examination.

MEASUREMENTS AND RESULTS

The degree of pleural adhesions was higher after silver nitrate administration (p = 0.019). No reduction in the adhesions was observed after administering antiinflammatory drugs to this group (p > 0.05). Conversely, the adhesion score was significantly reduced after administration of both prednisolone (p = 0.028) and diclofenac (p = 0.032) to the animals that received talc. Administration of the antiinflammatory agents did not influence microscopic pleural or lung changes induced by silver nitrate or talc.

CONCLUSION

These results show that the sustained systemic administration of antiinflammatory agents (steroidal or nonsteroidal) reduces the degree of pleural adhesions in animals with talc-induced pleurodesis but does not affect silver nitrate-induced pleurodesis. Extrapolation of these results to humans suggests that the use of antiinflammatory drugs should be avoided in patients with talc-induced pleurodesis and that appropriate clinical studies with silver nitrate should be conducted in patients chronically treated with these antiinflammatory agents.

Rapid pleurodesis with doxycycline through a small-bore catheter for the treatment of metastatic malignant effusions

GOALS OF WORK

The goal of the study was to evaluate the safety and efficacy of bedside pleurodesis with doxycycline using a short-term indwelling chest catheter for the palliative treatment of malignant effusions.

MATERIALS AND METHODS

A prospective study of 36 rapid pleurodesis procedures in 34 patients with malignant pleural effusions was conducted over a 5-year period in a university hospital. A 12F chest catheter placement was facilitated utilizing the Seldinger percutaneous entry technique. Patients received 500 mg of intrapleural doxycycline combined in half of the cases with mepivacaine. We assessed success or failure of pleurodesis in addition to the frequency of complications and survival.

MAIN RESULTS

Chest tubes were removed within 24 h in 69% and within 48 h in 94% of the patients. Complete success of pleurodesis was achieved in 17 (55%), partial success in eight (26%), and failure in six (19%) out of 31 evaluative procedures. Thus, the overall success rate of pleurodesis was 81%. Toxicity was mild and included pain (36%), fever (8%), and pneumothorax (6%). The median survival was 105 days. There was no relationship between instillation of intrapleural anesthetics and development of pain.

CONCLUSIONS

Rapid pleurodesis with doxycycline, which can be accomplished within 24 to 48 h, is a valid option for the symptomatic treatment of malignant effusions. This technique can be used as a first-line procedure in the majority of cases, particularly if thoracoscopic facilities are not available.

[The using doxycycline in procedure chemical pleurodesis of malignancy pleural effusion]

Pleural effusion is acumulation of liquid in pleural space, wich caused primary of pleural diseases or secundary of systemic diseases.

PROBLEM

Pleural effusion are the most frequently caused by malignancy and make worse poor condition of patients with malignancy. Pleural punction is insufficient metod for treatmen of malignancy pleural effusion. The best modefor treatment is pleurodesis using Doxicyclin.

PATIENTS AND METHODS

There are embrased all patient hospitalized in thoracis surgery department of KCU Sarajevo in period may 1999. - septembar 2002. whole medicaly treatet in procedure of chemical pleurodesis because of malignant pleural effusion. Examinee group of patients are medicaly treatet in procedure of chemical pleurodesis. Control group of patients are medicaly treatet by pleural punction because of malignanacy pleural effusion, same diseases in both group of patients. The results are present textualy, numberly and graphic printing.

RESULTS

Procedure of chemical pleurodesis obtained in mostly patients obliteration of pleural space, and prevent reaccumulation of pleural effusion. Procedure of chemical pleurodesis make quality of life better, complications are rare, mortality conect with procedure is not exist.

Efficacy and safety of iodopovidone pleurodesis through tube thoracostomy

OBJECTIVE

To evaluate the efficacy and safety of iodopovidone as an agent for pleurodesis through tube thoracostomy in patients with recurrent pleural effusions and pneumothorax.

METHODS

This was a prospective study in which pleurodesis was performed with a solution of 20 mL 10% iodopovidone and 80 mL normal saline solution infused through a tube thoracostomy and left in the pleural cavity for 4 h.

RESULTS

A total of 64 patients (34 men) with a mean (+/-SD) age of 47.1 +/- 15.4 years were included. There were 37 cases of pleural effusion and 27 of pneumothorax. A complete response (neither reaccumulation of fluid nor recurrence of pneumothorax) was obtained in 32 (86.5%) patients with pleural effusion and 25 (92.6%) patients with pneumothorax. A second procedure (i.e. repeated pleurodesis) was attempted successfully in four patients in the pleural effusion group. All patients experienced chest pain to a varying degree as recorded on a Visual Analogue Scale (median 50.5, range 10-95). Seven patients developed fever and one immunocompromised patient developed empyema following the procedure. There were no recurrences at a median follow up of 5 months (range 3-15 months) in the pleural effusion group, and 13 months (range 6-24 months) in the pneumothorax group.

CONCLUSIONS

Iodopovidone can be used as an effective and safe agent for (chemical) pleurodesis (through tube thoracostomy), which is inexpensive and readily available.

Combination therapy with intrapleural doxycycline and talc in reduced doses is effective in producing pleurodesis in rabbits

BACKGROUND

It has been suggested that talc and doxycycline might be acting through different pathways in creating pleurodesis. We hypothesized that combining doxycycline and talc in half the usual doses would be synergistic in inducing pleurodesis.

METHODS

Thirty-two rabbits were equally allocated into four groups: group 1, half-dose combination (5 mg/kg of doxycycline and 200 mg/kg of talc slurry); group 2, quarter-dose combination (2.5 mg/kg of doxycycline and 100 mg/kg of talc slurry); group 3, half-dose doxycycline (5 mg/kg of doxycycline); and group 4, half-dose talc (100 mg/kg of talc slurry). The pleurodesis scores from historical groups that received a full dose of talc (400 mg/kg) or doxycycline (10 mg/kg) were also compared to those obtained in the current study. Pleural fluid lactate dehydrogenase and protein levels were measured 24 h after the injection. Pleurodesis was graded from 1 (none) to 8 (> 50% symphysis) by two observers blinded to treatment groups. All rabbits underwent an ultrasonic examination on each side of their chest for the evaluation of pleurodesis.

RESULTS

The mean pleurodesis score in the half-dose combination group was significantly higher than that in the half-dose talc group, half-dose doxycycline group, and the historical full-dose talc group (p = 0.009, p = 0.01, and p < 0.05, respectively). The quarter-dose combination group also had a significantly higher mean pleurodesis score compared to the half-dose talc group (p = 0.013). The difference between the historical full-dose doxycycline and the half-dose combination or quarter-dose combination groups was not significant (p > 0.05). A significantly positive correlation existed between the pleurodesis score and the ultrasound scores (r = 0.876, p = 0.000000005).

CONCLUSIONS

This study demonstrates that the combination of half doses of talc and doxycycline is more effective than the half dose of either drug alone or the full dose of talc in producing pleurodesis in rabbits. In addition, ultrasound is an accurate imaging modality for the evaluation of pleurodesis, in that the absence of pleural gliding on ultrasound correlates well with the presence of a pleurodesis in rabbits.

Oral forms of tetracycline and doxycycline are effective in producing pleurodesis

PURPOSES

We investigated whether oral tetracyclines could produce an efficient and safe pleurodesis as does parenteral doxycycline, which is currently unavailable in many countries.

METHODS

Parenteral doxycycline (10 mg/kg), oral tetracycline (35 mg/kg), or doxycycline (10 mg/kg) was injected intrapleurally through a right chest tube in rabbits. The oral forms were dissolved in saline solution and passed through a sterile membrane filter. When daily aspirated pleural fluid was < 5 mL/24 h, the chest tube was removed. Fluid WBC, lactate dehydrogenase (LDH), and protein levels were measured 24 h after the injection. After the death of the animals on day 14, pleurodesis was graded from 1 (none) to 8 (> 50% symphysis) by two observers blinded to treatment groups.

RESULTS

The right pleurodesis score of the combined oral groups (median, 7.0; interquartile range [IQR], 4.0; n = 26) did not differ significantly (p = 0.349) from that of the parenteral group (median, 7.5; IQR, 6.0; n = 10). Oral tetracycline (capsule or tablet, n = 6 in each group) and doxycycline (capsule or tablet, n = 7 in each group) were as effective as parenteral doxycycline in producing pleurodesis: tetracycline capsule (median, 7.50; IQR, 6.00); tetracycline tablet (median, 6.50; IQR, 6.00); doxycycline capsule (median, 4.00; IQR, 1.00); doxycycline tablet (median, 8.00; IQR, 5.00), and parenteral doxycycline (median, 7.50; IQR, 6.00) [p = 0.235]. The left pleurodesis scores were 1.00 in all 36 rabbits. Fluid total volume, WBC, LDH, and protein levels were comparable between each oral and parenteral group, excluding WBCs in the tetracycline tablet group (p = 0.047). The complications were nonfatal (right hemothorax: tetracycline capsule [n = 3]/tetracycline tablet [n = 2], doxycycline tablet [n = 2], parenteral doxycycline [n = 2]; left hemothorax: tetracycline capsule [n = 1]; ascites: parenteral doxycycline [n = 1]). There was no growth on all filtrate cultures. Oral forms cost less than parenteral doxycycline (<1 US dollar vs 4.72 US dollars per rabbit). Filtering costs were 1.12 US dollars per rabbit.

CONCLUSION

Oral tetracycline or doxycycline is as effective and safe as parenteral doxycycline in producing pleurodesis in rabbits; thus, they may also be used in humans.

Additional minocycline pleurodesis after thoracoscopic surgery for primary spontaneous pneumothorax

RATIONALE

Ipsilateral recurrence rates of spontaneous pneumothorax after video-assisted thoracoscopic surgery are higher than rates after open thoracotomy.

OBJECTIVES

This study was conducted to determine whether additional minocycline pleurodesis would be effective in diminishing recurrence after video-assisted thoracoscopic surgery treatment of primary spontaneous pneumothorax.

METHODS

Between June 2001 and February 2004, 202 patients with primary spontaneous pneumothorax were treated by conventional or needlescopic video-assisted thoracoscopic surgery. The procedures included resection of blebs and mechanical pleurodesis by scrubbing the parietal pleura. After the operation, patients were randomly assigned to additional minocycline pleurodesis (103 patients) or to observation (99 patients).

MAIN RESULTS

Patients in the minocycline group had higher intensity chest pain and required a higher accumulated dose of meperidine. Short-term results showed that the two groups had comparable chest drainage duration, postoperative hospital stay, and complication rates. Patients in the minocycline group demonstrated a trend of decreased rate of prolonged air leaks (1.9 vs. 6.1%, p = 0.100). After a mean follow-up of 29 mo (12-47 mo), recurrent ipsilateral pneumothorax was noted in two patients in the minocycline group and eight patients in the observation group (p = 0.044 by the Kaplan-Meier method and log-rank test). Postoperative long-term residual chest pain and pulmonary function were comparable in both groups.

CONCLUSIONS

Although associated with intense immediate chest pain, additional minocycline pleurodesis is a safe and convenient procedure that can reduce the rate of ipsilateral recurrence after thoracoscopic treatment for primary spontaneous pneumothorax.

Polidocanol at Different Concentrations for Pleurodesis in Rats

PURPOSE

We previously found that 0.5% polidocanol was more effective than tetracycline for pleurodesis in rats. Thus, we conducted the present study to evaluate the efficacy of different concentrations of polidocanol for pleurodesis in rats.

METHODS

We divided 54 albino Wistar rats into six groups. Groups 1, 2, and 3 were given isotonic saline, 35 mg/kg tetracycline, and 0.6 mg of diluted polidocanol, respectively, being the daily recommended dose for humans. Groups 4, 5, and 6 were given 0.5%, 1%, and 2% polidocanol, respectively. All solutions were given intrapleurally in a volume of 0.5 ml. We examined the rats for macroscopic pleural adhesions and compared the mean values of macroscopic scoring among the six groups.

RESULTS

The rats given polidocanol and tetracycline had significantly more adhesions than the control group, and polidocanol at concentrations of 0.5%, 1%, and 2% was more effective for pleurodesis than tetracycline. The diluted polidocanol was not more effective than tetracycline. There was no difference between the effects of the 0.5% and 1% concentrations, but the 2% polidocanol group had significantly more adhesions than the other groups.

CONCLUSIONS

Polidocanol at concentrations of 0.5%, 1%, and 2% was a more effective sclerosing agent than tetracycline for pleurodesis. While 2% polidocanol was the most efficient sclerosing agent, the daily maximum recommended dose of polidocanol for humans was not more effective than tetracycline.

The efficacy of fibrin tissue adhesives in pleurodesis in rats

In search for a new sclerosing agent for pleurodesis, fibrin tissue adhesive is compared to tetracycline for its efficacy in rats. Twenty-four albino Wistar rats were divided into 3 groups. Groups 1, 2, and 3 were given intrapleural isotonic saline, 35 mg/kg tetracycline, and fibrin tissue adhesive with fibrinogen and thrombin concentrations of 30 mg/mL and 10 U/mL, respectively. Rats were evaluated for macroscopic pleural adhesions and mean values of macroscopic scoring were compared among the groups. Fibrin tissue adhesive- and tetracycline-treated rats had significantly more adhesions compared to the control group, whereas fibrin tissue adhesive was more effective for pleurodesis than tetracycline and no deaths or major side effects were observed in any rat. Thus, fibrin tissue adhesive was found as a more effective sclerosing agent than tetracycline for pleurodesis in rats.

Pleurodesis is inhibited by anti-vascular endothelial growth factor antibody

STUDY OBJECTIVES

The intrapleural injection of transforming growth factor (TGF)-beta2 produces pleurodesis in rabbits associated with large pleural effusions. This study investigated whether anti-vascular endothelial growth factor (VEGF) antibody has any effect on the fluid production or the pleurodesis induced by TGF-beta2.

INTERVENTIONS AND MEASUREMENTS

Three groups of seven New Zealand white rabbits were administered TGF-beta2 5.0 microg intrapleurally. Two groups received anti-VEGF antibody (10 mg/kg and 25 mg/kg) IV 24 h before TGF-beta2 injection, and the third group received no antibody. The rabbits were killed at 2 weeks, and the macroscopic pleurodesis score was determined. The degree of pleural angiogenesis was assessed by immunohistochemical staining for factor VIII.

RESULTS

The administration of anti-VEGF antibodies had no significant effect on the pleural fluid volume or the characteristics of the fluid. The mean pleurodesis score of the seven rabbits in the control group (7.71 +/- 0.76) was significantly (p < 0.05) higher than that for seven rabbits in the low-dose treatment group (4.43 +/- 2.37) and the seven rabbits in the high-dose treatment group (4.57 +/- 2.36) [+/- ]. The percentage of pleural tissue demonstrating angiogenesis in the control group (4.87 +/- 0.43%) was significantly (p < 0.05) higher than that for the low-dose (2.94 +/- 0.68%) or high-dose (2.67 +/- 0.64%) antibody groups. When all rabbits were considered, there was a highly significant correlation between the pleural vascular density scores and the pleurodesis scores (r = 0.84, p < 0.01).

CONCLUSION

VEGF and angiogenesis appear to play a pivotal role in the production of a pleurodesis.

Can chest ultrasonography assess pleurodesis after VATS for spontaneous pneumothorax?

OBJECTIVE

Thoracic echography easily detects the sign of 'pleural sliding', due to the movement of the visceral pleura on the parietal pleura. This sign is absent when pleurodesis is present. This study was designed to test thoracic echography in the assessment of difference in pleurodesis obtained after abrasion or pleurectomy performed for spontaneous pneumothorax, mainly based on the presence or absence of the 'pleural sliding' sign.

METHODS

The population was composed by 10 patients, 5 submitted to VATS complete pleurectomy and 5 to VATS pleural abrasion. Thoracic ultrasonography was performed 4-6 weeks after surgery by an anesthesist trained in thoracic echography blinded to the pleurodesis technique used. Pleurodesis was defined as excellent if pleural sliding was absent in all the 9 considered points, effective when it was present in less than 3 points, poor when it was present in 3 points or more.

RESULTS

Pleurodesis was excellent in all the pleurectomy patients and in 1 abrasion patient. In one case, pleural sliding was present at one single explored point and in the last 3 cases there were two contiguous points of pleural sliding. Interestingly, one of these patients developed partial recurrence of pneumothorax 3 weeks after echography exactly at the level of recorded pleural sliding.

CONCLUSIONS

Thoracic echography for the postoperative evaluation of pleurodesis is feasible and simple. An ideal pleurodesis is more likely after pleurectomy than after pleural abrasion. Areas of persisting pleural sliding are probably at risk of recurrence.

Thoracoscopic collagen pleurodesis in the treatment of malignant pleural effusions

OBJECTIVE

Pleurodesis is of a potential benefit in pleural carcinomatosis and symptomatic malignant effusions, but the best way of achieving this is still uncertain. The aim of this prospective study was to analyse the results of pleurodesis after intra-pleural thoracoscopic administration of collagen powder.

METHODS

45 patients (19 men and 26 women; median age of 64 years, range from 36 to 73 years) with malignant pleural effusions underwent thoracoscopic collagen pleurodesis. The procedure involved thoracoscopic drainage of pleural effusion and intra-pleural insufflation of 1 g of bovine dermal collagen powder under general anaesthesia. Assessment of the immediate side effects and pH estimation of drained pleural fluid took place whilst inpatient. The patients were subsequently followed up for 1 year at 3-monthly intervals including outpatient clinical review and chest radiography. Prognostic value of pleural fluid pH in relation to the outcome of pleurodesis and patients' survival was statistically analysed.

RESULTS

The procedure was well tolerated and there were no serious complications or deaths. Thoracoscopic collagen pleurodesis resulted in immediate resolution of malignant pleural effusion and all patients remained free of re-accumulated fluid for at least 1 month. Only 5 (11%) patients later developed recurrent effusion and required its repeat drainage at some point during the follow-up period. In the vast majority (89%) patients, thoracoscopic collagen pleurodesis proved successful in complete and permanent resolution of pleural fluid collection. Acid medium (pH < 7.3) of plural fluid was associated with poor survival (P < 0.05), but did not influence the clinical and radiological outcome of collagen pleurodesis (P > 0.05).

CONCLUSIONS

Thoracoscopic collagen pleurodesis is a simple and effective method of treatment of malignant pleural effusions.

Effect of diclofenac on experimental pleurodesis induced by tetracycline in rabbits

BACKGROUND AND OBJECTIVE

Pleurodesis is a frequently preferred procedure in thoracic surgery, and many factors may affect the process. We aimed to determine whether the administration of systemic diclofenac sodium diminishes the effectiveness of the pleurodesis induced by intrapleural tetracycline in rabbits.

METHODS

Twelve male New Zealand rabbits that received tetracycline 35 mg/kg intrapleurally were allocated into two groups. The first group (diclofenac group, n = 6) received 2 mg/kg diclofenac sodium intramuscularly for 10 days, and the second group (control group, n = 6) received acetaminophen 30 mg/kg orally for 10 days after the pleurodesis procedure. The rabbits were sacrificed after 28 days, and the pleural spaces were assessed grossly for evidence of pleurodesis and microscopically for evidence of fibrosis, inflammation, and collagenization.

RESULTS

The mean macroscopic pleurodesis score of the diclofenac group was 2.16 +/- 0.40 compared with 2.83 +/- 0.40 in the control group (p = .027). The mean microscopic pleurodesis score of the diclofenac group was 2. 3 +/- 1.03, whereas it was 3.5 +/- 0.54 in the control group (p = .045).

CONCLUSION

The administration of diclofenac sodium for 10 days following tetracycline pleurodesis reduces the effectiveness of pleurodesis in rabbits.

Clinical Efficacy and Safety of Thoracoscopic Talc Pleurodesis in Malignant Pleural Effusions

STUDY OBJECTIVES

In patients with disseminated neoplastic disease, recurrent pleural effusion is frequently observed. The purpose of this study was to determine the long-term efficacy and safety of pleurodesis by thoracoscopic talc poudrage (TTP) in malignant pleural effusions (MPEs).

METHODS

We report a consecutive series of 102 patients (45 women, 57 men; 20 to 83 years of age) who underwent medical thoracoscopy and TTP for recurrent MPE between 1999 and 2001. Thoracoscopy was performed utilizing local anesthesia and IV sedation (medical thoracoscopy). For pleurodesis, an average of 8 g of sterile talc powder was used. One hundred eighty-day follow-up was completed for all patients, and outcome measures included time to recurrence of the effusion and survival. Efficacy was judged by clinical examination, chest radiograph, and/or thoracic ultrasound examination. Procedure-related complications were documented.

RESULTS

The most common primary neoplasms were lung cancer (n = 48), breast cancer (n = 16), and malignant pleural mesothelioma (n = 10). Twenty-eight patients had other types of tumors, including renal cell carcinoma, ovarian carcinoma, GI tumors, prostate, malignant lymphoma, and unknown primary cancer. At the end of the primary observation period of 180 days, 38 of 46 surviving patients (82.6%) had a successful pleurodesis. Type of primary neoplasm had no significant influence on success rate. The 30-day mortality rate was 16.7% (n = 17). Survival curves after 180 days showed significant differences, with best survival in mesothelioma and shortest life expectancy in lung cancer (p = 0.005). Adverse effects included empyema in one case and malignant invasion of the scar. No episode of talc-induced ARDS was observed.

CONCLUSION

Thoracoscopic talc pleurodesis is a safe and effective method to stop recurrent MPEs. Lasting pleural symphysis is obtained.

Intrapleural Low-Dose Silver Nitrate Elicits More Pleural Inflammation and Less Systemic Inflammation Than Low-Dose Talc

STUDY OBJECTIVES

Several systemic effects have been described after talc pleurodesis. The aim of this study was to assess the systemic response induced by low, nonpleurodesis-inducing doses of talc and silver nitrate in an experimental model in rabbits.

DESIGN

Groups of six rabbits were injected intrapleurally with talc, 100 mg/kg or 400 mg/kg, and silver nitrate, 0.1% or 0.5%. After 6, 24, or 48 h, samples of blood and pleural fluid were collected and assayed for leukocytes, percentage of neutrophils, lactate dehydrogenase, interleukin-8, and vascular endothelial growth factor (VEGF) levels. Preinjection blood samples were used as normal blood controls.

MEASUREMENTS AND RESULTS

Silver nitrate 0.1% induced a more intense pleural inflammation than that produced by talc 100 mg/kg. In contrast, talc 100 mg/kg induced a more pronounced acute systemic response with higher values of WBCs and neutrophils, whereas silver nitrate 0.1% produced no significant increases in leukocytes or neutrophils. The serum interleukin-8 and VEGF levels increased in all groups, and decreased with time only in the silver nitrate 0.1% group. The highest serum VEGF levels were observed in the talc 100 mg/kg group.

CONCLUSIONS

In conclusion, 0.1% silver nitrate produced an intense pleural inflammatory response with a less evident systemic response in comparison to 0.5% silver nitrate and talc 100 mg/kg or 400 mg/kg.

Thoracoscopic talc pleurodesis for the treatment of spontaneous pneumothorax

BACKGROUND

During the Belgian Surgical Week in May 2004 some controversy existed on the optimal treatment of spontaneous pneumothorax. Doubts raised about the safety of talc in performing pleurodesis because of reported complications.

METHODS

A retrospective analysis of a consecutive series of thoracoscopic pleurodesis with talc was performed. Patients operated for spontaneous pneumothorax were analysed focusing on complications and freedom of recurrence. A literature search was performed on complications from the use of talc to treat pleural disease.

RESULTS

From September 1999 till August 2004 forty-one patients had a thoracoscopic pleurodesis with talc. In 21 patients this was performed for recurrent malignant pleural effusion and in 20 for spontaneous pneumothorax. In 5 of these 20 patients we faced a secondary spontaneous pneumothorax. In seven patients an apical pulmonary wedge resection of bullae was performed. No intra-operative or serious postoperative complications were seen in these patients. All drains were removed after 4 to 6 days. No episodes of respiratory insufficiency occurred. No recurrence was encountered during a mean follow-up of 22.7 months.

CONCLUSION

Thoracoscopic talc pleurodesis for spontaneous pneumothorax was effective and safe in our experience. In the literature no convincing evidence against the use of talc to treat pleural disease was found. Although some cases of ARDS are attributed to the pleural administration of talc, the incidence of complications after talc poudrage appears to be low.

Therapeutic options for refractory massive pleural effusion in systemic lupus erythematosus: a case study and review of the literature

OBJECTIVES

Massive refractory pleural effusions are uncommon in patients with systemic lupus erythematosus. Describing such a patient, the literature was reviewed to report the various therapeutic options in such cases.

METHODS

MEDLINE search using the terms "lupus" and "pleural effusion," inclusion of cases with refractory massive effusions with emphasis on treatment.

RESULTS

Only 10 such cases (including the patient described here) were reported in the English literature over the past 25 years. Those 10 patients suffered symptoms related to pleural effusion for a long period of time until resolution, ranging between 2 months to 2.5 years (median 6 months). During that period of time they underwent multiple fluid aspirations. Seven different types of therapy were reported in these case descriptions. They can be divided into 2 major groups: systemic therapy (immunosuppressive therapy, plasmapheresis, and intravenous immunoglobulin) and local therapy (intrapleural steroid injections, pleurodesis with talc or tetracycline, and pleurectomy). Pleurodesis with talc seemed to be the most effective treatment modality.

CONCLUSIONS

Due to the small number of reported patients, the best type of intervention is uncertain. When refractory pleural effusion is part of lupus exacerbation, the treatment of choice would be systemic, such as immunosuppressive therapy with high-dose steroids and cyclophosphamide. Intravenous immunoglobulin may also be considered. Local measures such as talc pleurodesis should be employed if systemic measures fail, or when pleural effusion is the only manifestation of lupus.

Massive Subcutaneous Emphysema After Thoracoscopic Argon Beamer Use for Pleurodesis

Argon beamer coagulation (ABC) has been effectively used in a wide variety of thoracoscopic and laparoscopic procedures. However, stringent safety measures have to be taken to prevent potentially severe complications due to overpressurization. Here we report a case of thoracoscopic pleurodesis with talcum powder during which the use of an argon beamer led to severe subcutaneous emphysema involving the trunk, upper extremities, neck, and face. Literature on complications secondary to the use of ABC in closed body cavities is reviewed.

Management of Recurrent Malignant Pleural Effusion with Chemical Pleurodesis

PURPOSE

Malignant pleural effusion is a common complication of primary and metastatic pleural malignancies. It is usually managed by drainage and pleurodesis, but there is no consensus as to the best method of pleurodesis. We compared the effectiveness, side effects, and cost of different chemical pleurodesis agents used in patients with malignant pleural effusion.

METHODS

Between January 1990 and December 2001, 108 patients with malignant pleural effusion underwent chemical pleurodesis in our department. Thoracoscopy was performed in 64 patients (59%), a minithoracotomy in 18 (17%), tube thoracostomy in 11 (10%), and a small-bore catheter was inserted in 15 (14%). Talc was used in 68 (63%) patients, tetracycline in 26 (24%), and bleomycin in 14 (13%). Talc was instilled by insufflation during surgery after drainage, whereas tetracycline and bleomycin were instilled via tube or catheter for pleural analgesia.

RESULTS

Talc resulted in significantly earlier tube and catheter removal, after an average 4.1 days versus 5.1 days after tetracyline, and 6.3 days after bleomycin (P = 0.026, P = 0.001, respectively). A significantly lower reaccumulation ratio in 90 days was achieved by the talc group, with nine (13.2%) patients, representing an 86.8% success rate, than in the tetracyline and bleomycin groups, with seven (26.7%) and five (35.7%) patients, respectively, representing 73.8% and 64.3% success rates (P = 0.04).

CONCLUSIONS

Talc resulted in the earliest expansion, minimal drainage, and the earliest tube and catheter removal.

Video-Assisted Thoracoscopic (VATS) Pleurodesis for Malignant Effusion: An Australian Teaching Hospital's Experience

BACKGROUND

Video-assisted thoracoscopic surgery (VATS) is commonly employed to achieve pleurodesis in patients suffering malignant pleural effusion (MPE). AIMS.: To evaluate the utility and outcome of VATS pleurodesis in management of MPE.

METHODS

Two hundred and two consecutive VATS pleurodesis for MPE were evaluated. Data was derived from a prospectively maintained database and hospital records. Pleurodesis was deemed unsuccessful if a significant effusion occurred within 30 days of surgery.

RESULTS

VATS pleurodesis was successful in 88% of patients (failure 12%) while recurrence of effusion occurred in 18%. Post-operative air space, air leak, empyema and prolonged intercostal catheter drainage (>14 days) were all significantly associated with a failed procedure. Mean length of stay was 10.4 days and 42% of patients were discharged within 7 days of surgery. Morbidity was 20% with no operative deaths and median survival was 94 days. Inpatient mortality was 5%. High ASA (>or=4) was significantly associated with increased risk of inpatient death (p<0.001) and poorer long-term survival (43 days versus 133 days, p=0.05).

CONCLUSIONS

VATS pleurodesis offers reasonable palliation of MPE with low morbidity and rapid recovery. Patients with an ASA score of >or=4 have a poor overall outcome and warrant less invasive palliative measures.

Congenital chylothorax in three siblings

Congenital chylothorax is an uncommon condition, resulting from lymphatic accumulation in the fetal thorax; affected siblings are extremely rare. We report a woman who delivered 3 children with congenital chylothorax; each case was managed differently, including the use of ex utero intrapartum treatment (EXIT) with the third pregnancy.

Rapid pleurodesis in symptomatic malignant pleural effusion

OBJECTIVE

The objective of the study was to see whether a rapid method of pleurodesis was superior to the standard protocol in patients with symptomatic malignant pleural effusion.

METHODS

Between January 2000 and February 2003, a prospective randomised trial was carried out in a sequential sample of 27 patients with malignant pleural effusions documented cytopathologically. Twelve patients were allocated to group 1 (standard protocol) and 15 to group 2 (new protocol). A small-bore catheter (12 Fr) and oxytetracycline (35 mg/kg of body weight) were used in both groups. In group 1, patients had drainage until radiological evidence of lung re-expansion was obtained and the amount of fluid drained was less than 150 ml/day, before oxytetracycline was instilled. The catheter was removed when the amount of fluid drained after instillation was less than 150 ml/day. In group 2, patients had the oxytetracycline instilled in a fractionated-dose manner following frequent aspirations at 6h intervals. The catheter was removed when the total amount of fluid drained after instillation of the oxytetracycline [OT] was less than 150 ml/last three aspirations. Response was evaluated at 1, 3 and 6 months after pleurodesis.

RESULTS

There was no statistically significant difference in the demographic features, site of the primary tumour, disease characteristics, and response rates in any evaluation period in both groups (P>0.05). However, the number of days of drainage and hospitalisation, and the cost were significantly lower in the second group (P<0.001).

CONCLUSIONS

This new pleurodesis method provided shorter hospital stay resulting in superior cost-effectiveness and palliation without sacrificing the efficacy of pleurodesis.

Catamenial pneumothorax

Catamenial pneumothorax is defined as spontaneous pneumothorax occurring within 72 hours before or after onset of menstruation. Although catamenial pneumothorax is the most common clinical manifestation of intrathoracic endometriosis, this latter condition is not universally identified in women with catamenial pneumothorax and cannot fully explain the recurrent and cyclical episodes of pneumothorax. Therefore, the etiology of this syndrome is unknown, although many theories have been proposed to explain it. We describe a 37-year-old woman with recurrent episodes of spontaneous right-sided pneumothorax and chest pain that occurred close to her menstrual periods. The patient's condition did not abate after initial surgical exploration with abrasive mechanical pleurodesis or after hormonal suppressive therapy at an institution elsewhere. The patient was referred to our institution for further evaluation. A second surgical inspection of the pleural cavity and diaphragm disclosed the presence of multiple diaphragmatic fenestrations that were closed surgically at that time. Postoperatively, the patient discontinued hormonal suppressive therapy, and menstrual cycles became regular. Six months after surgery, the patient remains asymptomatic with no evidence of recurrence of pneumothorax. This case supports recent reports that diaphragmatic defects are often present in patients with catamenial pneumothorax. Surgical exploration to inspect the diaphragm and to close all Identified defects should be performed in patients who continue to experience pneumothorax despite effective hormonal suppression.

Comparison of two protocols of conscious analgosedation in video-assisted talc pleurodesis

AIM

Video-assisted thoracoscopy surgery (VATS) is classically performed using general anesthesia with a double-lumen endotracheal tube to allow collapse of the operated lung. However, according to our opinion, the risks of general anesthesia with one-lung ventilation could be accepted when major thoracic operation is planned, but it should be avoided or kept at minimum when performing less invasive procedures such as video-assisted talc pleurodesis. In this paper, 2 different protocols are described in order to demonstrate the effectiveness and safety of Monitored Anesthesia Care (MAC) for performing VATS talc pleurodesis.

METHODS

We studied 65 neoplastic patients ASA III-IV who underwent video-assisted pleurodesis with talc nebulization. They were randomized into 2 homogenous groups: Group 1, received midazolam (0.015-0.030 mg/kg) and sufentanil (0.15-0.20 microg/kg); Group 2, received midazolam (0.15-0.2 mg/kg) and continuous remifentanil infusion 0.5-1 microg/kg/min in the first minute, followed by 0.05 microg/kg/min. Local anesthesia with 0.2% ropivacaine was employed before the thoracoscopic trocar was inserted in both groups. Intraoperative standard monitoring required ECG, heart rate, non-invasive blood pressure, transcutaneous carbon dioxide and oxygen saturation. Consciousness status has been evaluated by Ramsey scale, while pain intensity by VAS scale.

RESULTS

No statistically significant fluctuations were observed for mean arterial pressure, heart rate, SpO(2), tCO(2), VAS and Ramsey score. No postoperative complications and hospital mortality occurred.

CONCLUSIONS

Both the protocols offer an efficient control of analgosedation with a minimum incidence of intraoperative and postoperative side effects. Anyway, the titration of the drug is very important.

Pleurodesis for malignant pleural effusions: current controversies and variations in practices

PURPOSE OF REVIEW

Malignant pleural effusions are common, and pleurodesis remains the best method to control re-accumulation of the pleural fluid. There are few randomized controlled trials studying the optimal management of malignant pleural effusions. A recent international survey of pleurodesis practice has highlighted variations in how pleurodesis is performed worldwide. Future research should target these areas of variation to determine the best practice protocols.

RECENT FINDINGS

The selection of pleurodesing agents remains controversial. Talc is more effective, but is associated with more adverse effects. Talc pleurodesis is followed by systemic and pulmonary inflammation. This is probably related to systemic embolization of talc following its intrapleural administration, though there are other potential causes that may also play a role.

SUMMARY

The practice of pleurodesis varies considerably among individual pulmonologists and among different countries, in most technical aspects. This review serves to highlight some of these variations in practice, as well as reviewing the current literature on pleurodesis practice.

Phase III intergroup study of talc poudrage vs talc slurry sclerosis for malignant pleural effusion

STUDY OBJECTIVE

To demonstrate the efficacy, safety, and appropriate mode of instillation of talc for sclerosis in treatment of malignant pleural effusions (MPEs).

DESIGN

A prospective, randomized trial was designed to compare thoracoscopy with talc insufflation (TTI) to thoracostomy and talc slurry (TS) for patients with documented MPE.

MEASUREMENTS

The primary end point was 30-day freedom from radiographic MPE recurrence among surviving patients whose lungs initially re-expanded > 90%. Morbidity, mortality, and quality of life were also assessed.

RESULTS

Of 501 patients registered, those eligible were randomized to TTI (n = 242) or TS (n = 240). Patient demographics and primary malignancies were similar between study arms. Overall, there was no difference between study arms in the percentage of patients with successful 30-day outcomes (TTI, 78%; TS, 71%). However, the subgroup of patients with primary lung or breast cancer had higher success with TTI than with TS (82% vs 67%). Common morbidity included fever, dyspnea, and pain. Treatment-related mortality occurred in nine TTI patients and seven TS patients. Respiratory complications were more common following TTI than TS (14% vs 6%). Respiratory failure was observed in 4% of TS patients and 8% of TTI patients, accounting for five toxic deaths and six toxic deaths, respectively. Quality-of-life measurement demonstrated less fatigue with TTI than TS. Patient ratings of comfort and safety were also higher for TTI, but there were no differences on perceived value or convenience of the procedures.

CONCLUSIONS

Both methods of talc delivery are similar in efficacy; TTI may be better for patients with either a lung or breast primary. The etiology and incidence of respiratory complications from talc need further exploration.

Chemotherapeutic management of malignant pleural effusion

The management of malignant pleural effusions are a common, and sometimes difficult, therapeutic problem. This article reviews the currently available sclerosing agents and discusses novel agents that show promise for the future. Talc, tetracycline and bleomycin are currently the most widely used agents but none is an ideal sclerosant and certain adverse effects are of concern. Novel agents, particularly transforming growth factor (TGF)-beta(2) and metalloproteinase inhibitors, are being investigated, and the increase in knowledge into the mechanisms of pleural fluid formation and pleurodesis will hopefully lead to the development of targeted therapy in the future.

[Intractable pneumothorax successfully treated by talc slurry pleurodesis and video-assisted thoracoscopic surgery in a patient with idiopathic pulmonary fibrosis]

Pneumothorax associated with idiopathic pulmonary fibrosis (IPF) is intractable and often fatal because the patients are usually under a long-term steroid therapy, and are associated with severely impaired lung function. Further, pneumothorax itself recurs frequently, and acute exacerbation of IPF may develop after a surgical intervention. Here, we describe a case of intractable pneumothorax developed in a patient with IPF who was successfully treated with repeated talc pleurodesis combined with video-assisted thoracoscopic surgery under local anesthesia. A 67-year-old male with IPF who was under a long-term treatment with steroid, developed right-sided pneumothorax. A chest drainage tube was placed in the right pleural cavity, and repeated pleurodesis with minocycline or fibrinogen was challenged, but the outcome turned out to be unsuccessful. Then, talc slurry was applied repeatedly, resulting in a high-grade fever associated with reactive accumulation of pleural effusion. However, air leakage did not cease completely despite the eight-times pleurodesis with talc using 16 g in total. Finally, video-assisted thoracoscopic surgery under local anesthesia was undertaken and the pulmonary fistula was successfully closed.

The treatment by V.A.T.S. and M.A.C. of secondary neoplastic pleural effusion in the old patient (> 70 years)

A secondary malignant pleural effusion is a common event in the evolution of some tumours. It is frequent in advanced phase, above all the breast cancer in the woman and the cancer of the lung in the man, but such pathology can interest also extra-thoracic cancers (ovary, colon, prostate, etc.) and the malignant lymphoma. In the majority of cases in order to obtain a good control of the effusion entity with reduction of the respiratory symptoms and improvement of the quality of life, palliative local therapy is indispensable. Numerous methods and substances have been proposed in the time for the treatment of the N.P.E. The talc pleurodesis executed in the old patients (> 70 years) by means of the V.A.T.S. "one trough" and "Monitored Anaesthesia Care" (MAC) has shown valid procedure for the control of the secondary neoplastic pleural effusion, with little uneasiness for the patients, reduced complications and a sure effectiveness.

Chylothorax in a patient with ovarian tumour

A rare case of chylothorax complicating sex cord tumour of ovary in a young girl is being reported here. It was successfully managed by using a multipronged strategy consisting of chemotherapy, total parentral nutrition and bleomycin pleurodesis.

Primary vs delayed surgery for spontaneous pneumothorax in children: which is better?

BACKGROUND

Controversy exists regarding the timing of surgery for spontaneous pneumothorax (SP), which can be performed either after the first development of pneumothorax or after a recurrent spontaneous pneumothorax has occurred. Treatment after recurrence is often adopted because of the purported low recurrence of SP treated nonoperatively and the historical morbidity of open surgery. However, the effectiveness of VATS (to video-assisted bullectomy and pleurodesis) has raised the possibility of performing primary VATS (PV) in all patients. The authors therefore hypothesized that PV is safe and effective for SP and sought to perform a cost-benefit analysis of PV vs secondary VATS (SV).

METHODS

After institutional review board approval, consecutive patients with SP (1991-2003) and no comorbidities were retrospectively divided into PV vs SV. Demographics, recurrent pneumothorax after VATS, length of stay, and costs were compared by Student's t test/chi2. The predicted incremental cost of PV was (cost of PV) - [cost of nonoperative treatment x (1 - recurrence rate)] + cost of SV x recurrence rate. Data are means +/- SEM.

RESULTS

There were 54 spontaneous pneumothoraces in 43 patients (11 bilateral), of whom 3 were excluded because of open thoracotomy. Of 51 pneumothoraces, nonoperative treatment was attempted in 37, of whom 20 recurred and thus required SV. Primary VATS was performed in 14. Both groups had similar age, sex, weight, height, admission heart rate, and room air oxygen saturation. Total treatment length of stay was significantly shorter for PV vs SV (7.1 +/- 0.96 vs 10.5 +/- 1.2, P = .04). However, morbidity from recurrent pneumothorax after VATS occurred more frequently after PV than SV (4/14 vs 0/20 P < .05). Based on the observed recurrence rate of 54%, performing PV on all patients with SP would increase cost by $4010 per patient and require a recurrence rate of 72% or more to financially justify this approach.

CONCLUSIONS

Contrary to the hypothesis, the increased morbidity and cost do not justify a strategy of PV blebectomy/pleurodesis in children with SP. Instead, secondary treatment is recommended.

[Distilled water pleurodesis for two breast cancer patients suffering from carcinomatous pleurisy]

Pleural effusion of carcinomatous pleurisy is relatively common and a significant problem in recurrent breast cancer patients. It's very important to control it to keep a good quality of life for those patients. Two recurrent breast cancer patients, suffering from carcinomatous pleurisy and dyspnea due to pleural effusion, were treated with distilled water. As they have been treated with many kinds of hormonal therapy or chemotherapy for their several distant metastases, the performance status of these therapies has not been good. After one or two distilled water pleurodesis, pleural effusion was well controlled and dyspnea had disappeared. No adverse events, such as high fever and chest pain concerning this distilled water therapy were experienced. Taking its efficacy and a rarity of adverse events, distilled water plerodesis is a useful treatment for pleural effusion of carcinomatous pleurisy.

Catamenial pneumothorax revisited: Clinical approach and systematic review of the literature

BACKGROUND

Catamenial pneumothorax is a rare entity of spontaneous, recurring pneumothorax in women. It has been associated with thoracic endometriosis, yet varying clinical courses and the lack of consistent intraoperative findings have led to conflicting etiologic theories.

METHODS

We discuss etiology, clinical course, and surgical treatment of 3 women with catamenial pneumothorax. In addition, the world literature since the first description is reviewed.

RESULTS

Three women (31, 32, and 39 years old) had recurrent, menses-associated, right-sided spontaneous pneumothoraces. They had undergone video-assisted thoracoscopic surgery previously, with various unsuccessful procedures. Finally, with video-assisted thoracoscopic surgery multiple small perforations in the tendinous part of the right diaphragm with adjacent endometrial implants were detected. After plication of the involved area, 2 patients have been free of recurrence for 22 and 13 months, respectively. Laparoscopic evaluation in 1 woman with a further recurrence revealed asymptomatic pelvic endometriosis. This patient has been free of recurrence since initiation of luteinizing hormone-releasing hormone analog therapy for 17 months. In a review of 229 cases of catamenial pneumothorax in the literature, adequate information was given for 195 patients (85.2%). One hundred fifty-four (79%) were treated surgically, with detailed findings reported for 140 (91%). Thoracic endometriosis was diagnosed in 73 patients (52.1%), and 54 (38.8%) showed diaphragmatic lesions. Pleurodesis, with or without diaphragmatic repair or wedge resection, was performed in 81.7% of the cases.

CONCLUSIONS

Catamenial pneumothorax may be suspected in ovulating women with spontaneous pneumothorax, even in the absence of symptoms associated with pelvic endometriosis. During video-assisted thoracoscopic surgery, inspection of the diaphragmatic surface is paramount. Plication of the involved area alone can be successful. In complicated cases, hormonal suppression therapy is a helpful adjunct.

Autologous blood pleurodesis for pneumothorax complicating graft-versus-host disease-related bronchiolitis obliterans

Bronchiolitis obliterans (BO) is a manifestation of chronic graft-versus-host disease (GVHD) after allogeneic haemopoietic stem cell transplantation. Complications associated with this include persistent air-leak syndromes such as pneumothorax. Many methods have been described for treating this condition, both surgical and nonsurgical. We describe an 8-year-old boy with acute lymphoblastic leukaemia complicated by chronic GVHD-related BO, and subsequent pneumothorax with persistent air leak, who was treated successfully with autologous blood pleurodesis.

Radionuclide evaluation of pleural-peritoneal shunt before pleurodesis

OBJECTIVES

Talc pleurodesis can be offered to patients with hepatic hydrothorax. The authors wanted to determine their patient's eligibility for talc pleurodesis by excluding a pleural-peritoneal shunt.

MATERIALS AND METHODS

The authors measured the size of the talc particles and matched them with the radionuclide particle size. After injecting radiopharmaceutical into the pleura, the authors imaged the abdomen for possible migration.

RESULTS

In their patient, there was no migration of radionuclide from the thorax into the abdomen.

CONCLUSION

Injecting radionuclide into the thoracic cavity and then imaging for an extended period of time is one way to determine whether the patient has a pleural-peritoneal shunt.

Minimally Invasive Thoracic Surgery for Diagnostic Assessment and Palliative Treatment in Recurrent Neoplastic Pleural Effusion

BACKGROUND

We evaluated the effectiveness of VATS in the diagnosis and palliative treatment of recurrent neoplastic pleural effusions.

METHODS

From 1987 to 2001, we performed 325 VATS chemical pleurodesis for malignant pleural effusions. We used talc in 253 subjects (78 %) and alcohol in 72 (22 %) as the sclerosant agent. In 226 patients (68 %) we performed biopsies because the histology was unknown.

RESULTS

Mean operating time was 33.38 +/- 9.77 minutes (median: 32; range: 19 - 58), and the mean duration of chest intubation was 3.78 +/- 1.33 days (median: 4; range 2 - 8). Complications occurred in 2 % of patients. Thirty-day mortality was 2 %. Mean postoperative in hospital stay was 5.53 +/- 1.90 days (median 6; range: 2 - 11). We obtained 264 (81 %) therapeutic successes (no effusion recurrence within 4 months), and 55 relapses of which 32 had talc insufflation (13 % of talc group) and 23 alcohol instillation (32 % of alcohol group).

CONCLUSIONS

VATS chemical pleurodesis is a safe, useful, versatile procedure for oncological pleural effusion management. The use of talc rather than alcohol significantly increased the therapeutic success rate. VATS should be considered the treatment of choice in patients with advanced neoplasm to obtain good palliation and a better quality of life.

Efficacious pleurodesis with OK‐432 and doxorubicin against malignant pleural effusions

Malignant pleural effusion develops frequently in patients with advanced lung cancer. Chemical pleurodesis is the most effective palliative treatment for these patients. The efficacy of pleurodesis using both OK-432, a preparation of Streptococcus pyogenes, and doxorubicin for 20 patients with cytology-proven malignant pleural effusion associated with lung cancer was evaluated. After complete removal of pleural effusion, OK-432 and 30 mg of doxorubicin were injected via an inserted chest tube. Treatment was terminated when the volume of daily drainage reached <200 mL. If the daily volume remained >200 mL, an additional OK-432 was administered every 3 days. In total, 16 patients (80%) revealed a complete response, two patients (10%) revealed a partial response, and no response was seen in two patients. Eighteen patients with complete or partial responses did not show subsequent reaccumulation of pleural effusion after pleurodesis. The chest tube remained in place for an average of 6.4 days, draining a mean of 2,854 mL. The main side-effects were fever and pain that were easily treated with nonsteroidal anti-inflammatory drugs. Pleurodesis using both OK-432 and doxorubicin showed high efficacy for controlling malignant pleural effusions caused by lung cancer.

Impact of pleural effusion pH on the efficacy of thoracoscopic mechanical pleurodesis in patients with breast carcinoma

OBJECTIVE

A prospective randomised study was conducted to compare the efficacy of treating malignant pleural effusions (MPE) in patients with breast carcinoma by thoracoscopic mechanical pleurodesis (TMP) as a new palliative treatment and talc pleurodesis (TP) at various pleural fluid pH levels and to determine whether at low pH values, when the success of TP is reduced, TMP is more successful.

METHODS

87 female patients with breast carcinoma and a resulting MPE resistant to systemic therapy were divided into two groups: TMP and TP groups. In the TMP group 24 patients with pH levels above 7.3 and 21 patients with pH levels below 7.3 underwent thoracoscopic parietal and visceral pleural abrasion utilising general anaesthesia. In the TP group, 22 patients with pH levels above 7.3 and 20 patients with pH levels below 7.3 were administered 5 g of sterile talc, dissolved in 100 ml of physiological solution, via a chest tube, utilising local anaesthesia. Postoperative follow-up was performed to determine a possible recurrence of MPE with periodic radiographs, the duration of chest tube drainage and hospitalisation, occurrence of complications, and perioperative mortality. The following was used for statistical analysis: t-test for odd samples, chi2 test, logistic regression, and multiple linear regression.

RESULTS

TMP and TP were equally successful (92 and 91%) in patients with pH levels above 7.3. Differences occurred in patients with pH below 7.3 (81 and 55%) (P = 0.07). The lowest pH value at which TMP proved successful was 7.06, while for TP this value was 7.25. In TMP group the average duration of chest tube drainage amounted to 3.8 days and hospitalisation to 5.5 days, while in TP group it was 5.6 and 7.5 days, respectively. Differences were statistically significant (P < 0.05). 16% of easily treatable complications and no case of perioperative mortality were identified in TMP group, while 26% of complications and four cases of perioperative mortality were noted in TP group.

CONCLUSIONS

TMP is a safe palliative treatment for MPE in breast carcinoma, with a minimal number of complications and a short hospital stay; it is more successful than TP in patients with pH of MPE below 7.3.

Pleurodese

Pleurodesis is a way of inducting an inflammatory process in the pleural surface in order to create the closure of the pleural space. The exact mechanism isn't completely understood and there is still a great deal of controversy concerning pleurodesis. Pleurodesis can be achieved by introduction of a sclerosant agent trough a chest tube into the pleural space, by medical thoracoscopy, by surgical thoracoscopy or by thoracotomy. The principal sclerosant agents are talc and tetracycline. The indications for pleurodesis are malignant recurrent pleural effusion, primary recurrent pneumothorax, secondary pneumothorax and benign pleural effusion resistant to medical treatment. There are, although, some contraindications to performing it. Serious complications of pleurodesis are rare and depend on the technique and agent used. The method of choice for pleurodesis is related to the experience and technical facilities available. The author presents a review about pleurodesis.