Pleurodesis Failure Research Articles

Prolonged Non-Steroidal Anti-Inflammatory Drug Exposure After Pleurodesis Increases Pneumothorax Recurrence: A Retrospective Cohort Study

The use of non-steroidal anti-inflammatory drugs (NSAID) in patients undergoing pleurodesis remains controversial. Although many surgeons are comfortable prescribing NSAIDs post-operatively, some oppose this practice due to concerns of suppressing the inflammatory response and quality of pleurodesis. Only a small body of inconsistent publications exists with respect to guiding therapy in this common clinical scenario. A retrospective cohort study was undertaken assessing effect of NSAID exposure on pleurodesis outcomes. An institutional thoracic surgery database was reviewed yielding 147 patients who underwent pleurodesis for pneumothorax between 2010 and 2018. Medical records and imaging were reviewed for patient characteristics, NSAID exposure, recurrent pneumothorax and other adverse events. There was no overall difference between rates of recurrence and procedural failure of pleurodesis (Relative Risk [RR] 1.67 [95% CI 0.74-3.77]). However, NSAID exposure of >48 hours was associated with increased risk of recurrent pneumothorax (RR 2.16 [95% CI 1.05-4.45]). There was no increased rate of other adverse events related to NSAID usage. NSAID exposure does not increase failure rates or other adverse events following pleurodesis for pneumothorax. However, prolonged NSAID exposure post-pleurodesis may increase procedural failure rates. Further large volume randomised control trials are required.

Comparison of outcomes of surgical and other invasive treatment modalities for malignant pleural effusion in patients with pleural carcinomatosis.

Treatment modalities for malignant pleural effusion (MPE) are diverse. The objectives were to analyze actual clinical data from patients with MPE and pleural carcinomatosis and to compare the outcomes of different treatment modalities with regard to effectiveness, survival, morbidity, and mortality as well as the duration of hospitalization. Patients with pathologically proven pleural carcinomatosis or MPE from 2018 to 2020 were included in this retrospective-observational study with additional questionnaires. We identified four treatment modalities: (I) video-assisted thoracic surgery with pleurodesis (VATS, mechanical/chemical); (II) VATS with pleurodesis combined with indwelling pleural catheter (IPC) placement; (III) VATS (without pleurodesis) combined with IPC placement; and (IV) management with IPC placement alone. We enrolled 91 patients aged 38-90 years who were treated by either VATS-pleurodesis (N=22), VATS-IPC placement (N=21), a combination of VATS with pleurodesis and IPC placement (N=22), or IPC placement alone (N=26). The mean survival time was 138.3 days. No significant differences were detected among treatment groups regarding the outcome of pleurodesis failure, either initially or later. Patients in the VATS-pleurodesis with IPC group experienced significantly more complications than those in the other treatment modality groups [odds ratio (OR): 3.288, P=0.026]. However, no statistically significant differences were observed regarding the type of adverse event and survival. Hypoalbuminemia, systemic therapy, and successful pleurodesis (P=0.008; P=0.011; P=0.044, respectively) were significantly correlated with survival. In multiple linear regression, hypoalbuminemia persisted as an independent predictor of survival (P=0.031). The type of intervention showed significant differences regarding the duration of hospitalization (P=0.017). IPC placement alone shortened the mean total hospitalization time by 7.9, 5.9, and 7.0 days compared to VATS-pleurodesis (P≤0.001), VATS-IPC placement (P=0.004), and VATS-pleurodesis with IPC placement (P≤0.001), respectively. The survival time was very short, and each treatment group had pros and cons. Therefore, decisions should be made on a case-by-case basis. The use of an IPC, even if the lung is not trapped, can significantly reduce the length of hospital stay. VATS is needed when histology is needed. The ideal method for treating recurrent MPE should be simple, effective, and inexpensive, with minimal disturbance to the patient.

The impact of perioperative non-steroidal anti-inflammatory drugs use on pleurodesis following thoracic surgery.

A best evidence topic in thoracic surgery was written according to a structured protocol. The question addressed was: in patients who have had {visceral and parietal pleural symphysis}, {do NSAIDs reduce} {the efficacy of pleurodesis}? Sixteen papers were discovered in the search. Of these, 3 human studies were included in the analysis. None showed a significantly higher rate of pleurodesis failure in patients given perioperative NSAIDs. The results from the largest study met criteria for noninferiority. Within the constraints of the study, the results suggest that systemic administration of nonsteroidal anti-inflammatory medication in the perioperative period does not necessarily attenuate effective pleurodesis. However, further study is needed as there is a clear paucity of human-based studies.

The randomised thoracoscopic talc poudrage+indwelling pleural catheters versus thoracoscopic talc poudrage only in malignant pleural effusion trial (TACTIC): study protocol for a randomised controlled trial

IntroductionMalignant pleural effusion (MPE) is common, with 50 000 new cases per year in the UK. MPE causes disabling breathlessness and indicates advanced disease with a poor prognosis. Treatment approaches...

The evidence framework of traditional Chinese medicine injection (Aidi injection) in controlling malignant pleural effusion: A clustered systematic review and meta-analysis

IntroductionAidi injection (Aidi), a traditional Chinese medicine injection, is often practiced to control malignant pleural effusion (MPE). ObjectivesWe performed a registered systematic review and meta-analysis (PROSPERO: CRD42022337611) to clarify the clinical role of Aidi in MPE, reveal optimal combinations of Aidi and chemical agents, their indications, therapeutic route and usage, and demonstrate their clinical effectiveness and safety. MethodologyAll randomized controlled trials (RCTs) about Aidi in controlling MPE were collected from Chinese and English databases (up to October 2022). We clustered them into multiple homogenous regimens, evaluated the risk-of-bias at outcome level using a RoB 2, extracted and pooled the data using meta-analysis or descriptive analysis, and finally summarized their evidence quality. ResultsAll 56 studies were clustered into intrapleural administration with Aidi alone or plus chemical agents, and intravenous administration with Aidi for MPE. Intrapleural administration with Aidi alone displayed similar clinical responses on Cisplatin (DDP) alone. Only administration with Aidi plus DDP significantly improved complete response and quality of life, and displayed a low pleurodesis failure, disease progression, hematotoxicity, gastrointestinal and hepatorenal toxicity. For patients with moderate to massive effusion, Karnofsky Performance Status score ≥ 50 or anticipated survival time ≥3 months, Aidi (50 ml to 80 ml each time, one time each week and three to eight times) plus DDP (20 to 30 mg, 40 to 50 mg, or 60 to 80 mg each time) significantly improved clinical responses. Most results had moderate to low quality. ConclusionsCurrent evidences indicate that Aidi, a pleurodesis agent, plays an interesting clinical role in controlling MPE. Aidi plus DDP perfusion is a most commonly used regimen, which shows a significant improvement in clinical responses. These findings also provide an indication and possible optimal usage for rational drug use.

The intrapleural administration with thymic peptides in malignant pleural effusion: A clustered systematic review and meta-analysis

BackgroundThymic peptides (TPs) are often used to control malignant pleural effusion (MPE). So, we performed a clustered systematic review and meta-analysis to clarify the treatment regimens of TPs for MPE, demonstrate their clinical effectiveness and safety, and reveal the indications and optimal usage for a desired effectiveness. Materials and methodsWe collected all trials of TPs for MPE from Chinese and English databases (from inception until May 2021). After evaluating their bias risk, we pooled the data from each regimen using the meta-analysis or descriptive analysis, and summarized the evidence quality using the Grading of Recommendation Assessment, Development and Evaluation approach (GRADE). ResultsThirty-four trials were clustered into TPs for MPE from lung cancer or miscellaneous tumors. The TPs combined with chemical agents were mainly used in MPE from lung cancer. All five regimens, only thymosin with oxaliplatin (L-OHP) significantly improved the complete response (CR) [2.40 (1.84 to 3.13)], quality of life [2.04 (1.20 to 3.48)], 0.5- and 1-year overall survival (OS) rate [5.75 (3.02 to 10.92) and 5.29, (1.71 to 16.36)]. It also up-regulated the T lymphocyte levels, and reduced the pleurodesis failure, disease progression and adverse events. In patients with moderate to large volume, Karnofsky Performance Status score ≥ 50 or anticipated survival time ≥ 3 months, the thymosin (300 mg/time, one time/week and lasting two to eight times) with oxaliplatin (100 mg/m2) achieved a desired response. Most results were moderate quality. ConclusionsThe current evidences indicate that the TPs are important pleurodesis agents, which combination with chemical agents are mainly used in MPE from lung cancer. The thymosin with L-OHP is a main regimen, which shows a significant improvement in clinical responses, antitumor immunity, and with a reasonable security. The evidence also provides indications and optimal usage for achieving a desired effectiveness.

Role of thoracic ultrasonography in pleurodesis pathways for malignant pleural effusions (SIMPLE): an open-label, randomised controlled trial

Pleurodesis is done as an in-patient procedure to control symptomatic recurrent malignant pleural effusion (MPE) and has a success rate of 75-80%. Thoracic ultrasonography has been shown in a small study to predict pleurodesis success early by demonstrating cessation of lung sliding (a normal sign seen in healthy patients, lung sliding indicates normal movement of the lung inside the thorax). We aimed to investigate whether the use of thoracic ultrasonography in pleurodesis pathways could shorten hospital stay in patients with MPE undergoing pleurodesis. The Efficacy of Sonographic and Biological Pleurodesis Indicators of Malignant Pleural Effusion (SIMPLE) trial was an open-label, randomised controlled trial done in ten respiratory centres in the UK and one respiratory centre in the Netherlands. Adult patients (aged ≥18 years) with confirmed MPE who required talc pleurodesis via either a chest tube or as poudrage during medical thorascopy were eligible. Patients were randomly assigned (1:1) to thoracic ultrasonography-guided care or standard care via an online platform using a minimisation algorithm. In the intervention group, daily thoracic ultrasonography examination for lung sliding in nine regions was done to derive an adherence score: present (1 point), questionable (2 points), or absent (3 points), with a lowest possible score of 9 (preserved sliding) and a highest possible score of 27 (complete absence of sliding); the chest tube was removed if the score was more than 20. In the standard care group, tube removal was based on daily output volume (per British Thoracic Society Guidelines). The primary outcome was length of hospital stay, and secondary outcomes were pleurodesis failure at 3 months, time to tube removal, all-cause mortality, symptoms and quality-of-life scores, and cost-effectiveness of thoracic ultrasonography-guided care. All outcomes were assessed in the modified intention-to-treat population (patients with missing data excluded), and a non-inferiority analysis of pleurodesis failure was done in the per-protocol population. This trial was registered with ISRCTN, ISRCTN16441661. Between Dec 31, 2015, and Dec 17, 2019, 778 patients were assessed for eligibility and 313 participants (165 [53%] male) were recruited and randomly assigned to thoracic ultrasonography-guided care (n=159) or standard care (n=154). In the modified intention-to-treat population, the median length of hospital stay was significantly shorter in the intervention group (2 days [IQR 2-4]) than in the standard care group (3 days [2-5]; difference 1 day [95% CI 1-1]; p<0·0001). In the per-protocol analysis, thoracic ultrasonography-guided care was non-inferior to standard care in terms of pleurodesis failure at 3 months, which occurred in 27 (29·7%) of 91 patients in the intervention group versus 34 (31·2%) of 109 patients in the standard care group (risk difference -1·5% [95% CI -10·2% to 7·2%]; non-inferiority margin 15%). Mean time to chest tube removal in the intervention group was 2·4 days (SD 2·5) versus 3·1 days (2·0) in the standard care group (mean difference -0·72 days [95% CI -1·22 to -0·21]; p=0·0057). There were no significant between-group differences in all-cause mortality, symptom scores, or quality-of-life scores, except on the EQ-5D visual analogue scale, which was significantly lower in the standard care group at 3 months. Although costs were similar between the groups, thoracic ultrasonography-guided care was cost-effective compared with standard care. Thoracic ultrasonography-guided care for pleurodesis in patients with MPE results in shorter hospital stay (compared with the British Thoracic Society recommendation for pleurodesis) without reducing the success rate of the procedure at 3 months. The data support consideration of standard use of thoracic ultrasonography in patients undergoing MPE-related pleurodesis. Marie Curie Cancer Care Committee.

Thoracoscopic Talc Insufflation Versus Talc Slurry in Patients with Malignant Pleural Effusion

Background: Malignant Pleural Effusion (MPE) is defined as an accumulation of pleural fluid in which malignant cells are present. It is a poor clinical indicator as it represents an advanced stage neoplasm with median survival ranging from one to 12 months. Aim: We aimed at comparing Thoracoscopic Talc Insufflation with tube thoracostomy talc slurry pleurodesis in regard to the efficacy and complications in patients with MPE. Patients and Methods: 128 patients with MPE were divided into two groups, 64 in each. One group had tube thoracostomy talc slurry (TS) pleurodesis while the other had thoracoscopic talc insufflation (TTI) pleurodesis. Results: Talc slurry was associated with a longer hospital stay. Complications recorded included chest pain (TS 29%, TTI 25.4%), dry cough (TS 16%, TTI 39%), vomiting (TS 29%, TTI 13.6%), tachycardia (TS 16.13%, TTI 18.64%), surgical wound infection (TS 11.29%, TTI 10.17%), and respiratory failure complicating talc pneumonitis (TS 3.23%, TTI 0%). Pleurodesis success was enhanced by the presence of lung cancer (OR 2.34, p=0.02) or breast cancer (OR 2.55, p= 0.03) as the primary malignancy, the younger the patient's age at pleurodesis time (OR 1.004, p=0.89) and the higher the pleural fluid glucose content (OR 1.01, p=0.09). Pleurodesis failure was strongly correlated to the presence of any of the pre-procedural factors, female gender, hepatocellular carcinoma as the primary malignancy, and low pH pleural fluid. Conclusion: In MPE patients with no evidence of lung trapping, talc pleurodesis method used should depend on local expertise (availability of thoracoscopy), whether additional tissue is needed for molecular-marker analysis (would favor thoracoscopy), plus patient-related factors (operable or not). However, TTI has a significant irrefutable benefit in patients with adhesions and trapped lung.

Pleural Space Elastance and Its Relation to Success Rates of Pleurodesis in Malignant Pleural Effusion.

BackgroundPleurodesis fails in 10%–40% of patients with recurrent malignant pleural effusions malignant pleural effusion and dyspnea. This study aimed to assess the values of pleural elastance (PEL) after the aspiration of 500 mL of pleural fluid and their relation to the pleurodesis outcome, and to compare the pleurodesis outcome with the chemical characteristics of pleural fluid.MethodsA prospective study was conducted in Kasr El-Aini Hospital, Cairo University, during the period from March 2019 to January 2020. The study population consisted of 40 patients with malignant pleural effusion. The measurement of PEL after the aspiration of 500 mL of fluid was done with “PEL 0.5” (cm H2O/L), and the characteristics of the pleural fluid were chemically and cytologically analyzed. Pleurodesis was done and the patients were evaluated one month later. The PEL values were compared with pleurodesis outcomes.ResultsAfter 4-week of follow-up, the success rate of pleurodesis was 65%. The PEL 0.5 was significantly higher in failed pleurodesis than it was in successful pleurodesis. A cutoff point of PEL 0.5 >14.5 cm H2O/L was associated with pleurodesis failure with a sensitivity and specificity of 93% and 100%, respectively. The patients with failed pleurodesis had significantly lower pH levels in fluid than those in the successful group (p<0.001).ConclusionPEL measurement was a significant predictor in differentiating between failed and successful pleurodesis. The increase in acidity of the malignant pleural fluid can be used as a predictor for pleurodesis failure in patients with malignant pleural effusion.

Thoracoscopy and talc poudrage compared with intercostal drainage and talc slurry infusion to manage malignant pleural effusion: the TAPPS RCT.

There are around 40,000 new cases of malignant pleural effusion in the UK each year. Insertion of talc slurry via a chest tube is the current standard treatment in the UK. However, some centres prefer local anaesthetic thoracoscopy and talc poudrage. There is no consensus as to which approach is most effective. This trial tested the hypothesis that thoracoscopy and talc poudrage increases the proportion of patients with successful pleurodesis at 3 months post procedure, compared with chest drain insertion and talc slurry. This was a multicentre, open-label, randomised controlled trial with embedded economic evaluation. Follow-up took place at 1, 3 and 6 months. This trial was set in 17 NHS hospitals in the UK. A total of 330 adults with a confirmed diagnosis of malignant pleural effusion needing pleurodesis and fit to undergo thoracoscopy under local anaesthetic were included. Those adults needing a tissue diagnosis or with evidence of lung entrapment were excluded. Allocation took place following minimisation with a random component, performed by a web-based, centralised computer system. Participants in the control arm were treated with a bedside chest drain insertion and 4 g of talc slurry. In the intervention arm, participants underwent local anaesthetic thoracoscopy with 4 g of talc poudrage. The primary outcome measure was pleurodesis failure at 90 days post randomisation. Secondary outcome measures included mortality and patient-reported symptoms. A cost-utility analysis was also performed. A total of 166 and 164 patients were allocated to poudrage and slurry, respectively. Participants were well matched at baseline. For the primary outcome, no significant difference in pleurodesis failure was observed between the treatment groups at 90 days, with rates of 36 out of 161 (22%) and 38 out of 159 (24%) noted in the poudrage and slurry groups, respectively (odds ratio 0.91, 95% confidence interval 0.54 to 1.55; p = 0.74). No differences (or trends towards difference) were noted in adverse events or any of the secondary outcomes at any time point, including pleurodesis failure at 180 days [poudrage 46/161 (29%), slurry 44/159 (28%), odds ratio 1.05, 95% confidence interval 0.63 to 1.73; p = 0.86], mean number of nights in hospital over 90 days [poudrage 12 nights (standard deviation 13 nights), slurry 11 nights (standard deviation 10 nights); p = 0.35] and all-cause mortality at 180 days [poudrage 66/166 (40%), slurry 68/164 (42%); p = 0.70]. At £20,000 per quality-adjusted life-year gained, poudrage would have a 0.36 probability of being cost-effective compared with slurry. Entry criteria specified that patients must be sufficiently fit to undergo thoracoscopy, which may make the results less applicable to those patients presenting with a greater degree of frailty. Furthermore, the trial was conducted on an open-label basis, which may have influenced the results of patient-reported measures. The TAPPS (evaluating the efficacy of Thoracoscopy And talc Poudrage versus Pleurodesis using talc Slurry) trial has robustly demonstrated that there is no additional clinical effectiveness or cost-effectiveness benefit in performing talc poudrage at thoracoscopy over bedside chest drain and talc slurry for the management of malignant pleural effusion. Current Controlled Trials ISRCTN47845793. This project was funded by the National Institute for Health Research (NIHR) Health Technology Assessment programme and will be published in full in Health Technology Assessment; Vol. 24, No. 26. See the NIHR Journals Library website for further project information.

Interventions for the management of malignant pleural effusions: a network meta-analysis.

Interventions for the management of malignant pleural effusions: a network meta-analysis.

Clinically important associations of pleurodesis success in malignant pleural effusion: Analysis of the TIME1 data set.

Chemical pleurodesis is performed for patients with MPE with a published success rate of around 80%. It has been postulated that inflammation is key in achieving successful pleural symphysis, as evidenced by higher amounts of pain or detected inflammatory response. Patients with mesothelioma are postulated to have a lower rate of successful pleurodesis due to lack of normal pleural tissue enabling an inflammatory response. The TIME1 trial data set, in which pleurodesis success and pain were co-primary outcome measures, was used to address a number of these assumptions. Pain score, systemic inflammatory parameters as a marker of pleural inflammation and cancer type were analysed in relation to pleurodesis success. In total, 285 patients were included with an overall success rate of 81.4%. There was a significantly higher rise in CRP in the Pleurodesis Success group compared with the Pleurodesis Failure group (mean difference: 19.2, 95% CI of the difference: 6.2-32.0, P = 0.004) but no significant change in WCC. There was no significant difference in pain scores or analgesia requirements between the groups. Patients with mesothelioma had a lower rate of pleurodesis success than non-mesothelioma patients (73.3% vs 84.9%, χ2 = 5.1, P = 0.023). Change in CRP during pleurodesis is associated with successful pleurodesis but higher levels of pain are not associated. Patients with mesothelioma appear less likely to undergo successful pleurodesis than patients with other malignancies, but there is still a significant rise in systemic inflammatory markers. The mechanisms of these findings are unclear but warrant further investigation.

Effect of Thoracoscopic Talc Poudrage vs Talc Slurry via Chest Tube on Pleurodesis Failure Rate Among Patients With Malignant Pleural Effusions

Malignant pleural effusion (MPE) is challenging to manage. Talc pleurodesis is a common and effective treatment. There are no reliable data, however, regarding the optimal method for talc delivery, leading to differences in practice and recommendations. To test the hypothesis that administration of talc poudrage during thoracoscopy with local anesthesia is more effective than talc slurry delivered via chest tube in successfully inducing pleurodesis. Open-label, randomized clinical trial conducted at 17 UK hospitals. A total of 330 participants were enrolled from August 2012 to April 2018 and followed up until October 2018. Patients were eligible if they were older than 18 years, had a confirmed diagnosis of MPE, and could undergo thoracoscopy with local anesthesia. Patients were excluded if they required a thoracoscopy for diagnostic purposes or had evidence of nonexpandable lung. Patients randomized to the talc poudrage group (n = 166) received 4 g of talc poudrage during thoracoscopy while under moderate sedation, while patients randomized to the control group (n = 164) underwent bedside chest tube insertion with local anesthesia followed by administration of 4 g of sterile talc slurry. The primary outcome was pleurodesis failure up to 90 days after randomization. Secondary outcomes included pleurodesis failure at 30 and 180 days; time to pleurodesis failure; number of nights spent in the hospital over 90 days; patient-reported thoracic pain and dyspnea at 7, 30, 90, and 180 days; health-related quality of life at 30, 90, and 180 days; all-cause mortality; and percentage of opacification on chest radiograph at drain removal and at 30, 90, and 180 days. Among 330 patients who were randomized (mean age, 68 years; 181 [55%] women), 320 (97%) were included in the primary outcome analysis. At 90 days, the pleurodesis failure rate was 36 of 161 patients (22%) in the talc poudrage group and 38 of 159 (24%) in the talc slurry group (adjusted odds ratio, 0.91 [95% CI, 0.54-1.55]; P = .74; difference, -1.8% [95% CI, -10.7% to 7.2%]). No statistically significant differences were noted in any of the 24 prespecified secondary outcomes. Among patients with malignant pleural effusion, thoracoscopic talc poudrage, compared with talc slurry delivered via chest tube, resulted in no significant difference in the rate of pleurodesis failure at 90 days. However, the study may have been underpowered to detect small but potentially important differences. ISRCTN Identifier: ISRCTN47845793.

TENSION PNEUMOTHORAX RELATED HOSPITALIZATIONS IN THE UNITED STATES

SESSION TITLE: Wednesday Abstract Posters SESSION TYPE: Original Investigation Posters PRESENTED ON: 10/23/2019 09:45 AM - 10:45 AM PURPOSE: Tension pneumothorax (TP) could be primary or secondary to an underlying lung disease. Using a large national sample, we aim to describe the incidence of TP related hospitalizations and outcomes in these patients. METHODS: A descriptive, retrospective study was conducted on the National Inpatient Sample (NIS) database for the years 2012-2014. Admissions with diagnosis of TP were selected based on International Classification of Diseases-Ninth Revision, Clinical Modification diagnoses codes (5120). Traumatic pneumothoraxes (diagnosis of fractures of ribs, vertebrae, upper body or hemothorax) were excluded. TP was considered primary if no underlying chronic lung diseases (CLD) [Tuberculosis, Malignancy, Sarcoidosis, Cystic Fibrosis, Chronic obstructive pulmonary disease (COPD), Asthma or Interstitial lung disease] were present on the chart and considered secondary if CLD diagnosis were present. All data analysis was limited to emergency admissions with principal diagnosis of TP. RESULTS: From 2005 to 2007, there was a non-significant decrease in TP related admissions. Between 2007-2014 there has been a significant increase in TP related hospitalizations [45.6 per million admissions (pma) to 68.7 pma, annual percentage change 4.6]. Median age of patients with TP was 50.57 + 21.59 years, 27.04% were female and 68.95% were white. Majority of TP patients underwent interventions: chest-tube insertion (75.59%), thoracentesis (1.47%), thoracoscopy with or without drainage/decortication (7.08%) and/or pleurodesis (15.11%). Patients with primary TP were significantly younger (40.05 + 20.76 years vs 56.01 + 19.89 years, p<0.001), and had lower rates of acute respiratory failure (8.15% vs 21.36%, p<0.001), mechanical ventilation (5.58% vs 11.73%, p<0.001) and inpatient mortality (3.54% vs 5.98%, p<0.001) when compared to secondary TP patients. Patients with secondary TP had higher likelihood of undergoing invasive procedures such as thoracoscopy with or without drainage/decortication (8.43% vs 4.49%, p<0.001) and pleurodesis (19.04% vs 7.54%, p<0.001) when compared to primary TP. Among patients with CLD, the prevalence of TP in COPD was 2.28 per ten thousand admissions (pta). Compared to patients with COPD, the prevalence of TP was higher in patients with Cystic Fibrosis [5.66 pta, p 0.002], Interstitial lung disease (2.79 pta, p 0.002) and Sarcoidosis (3.25 pta, p 0.049) and lower in patients with Asthma (0.70 pta, p <0.001). CONCLUSIONS: Patients with primary TP have better outcomes of acute respiratory failure, mechanical ventilation, mortality and lower rates of pleurodesis and thoracoscopy, when compared to patients with secondary TP. Among CLD patients, patients with CF, ILD and Sarcoidosis have higher rates of TP when compared to COPD patients. CLINICAL IMPLICATIONS: Majority of patients with principal admission of TP are male, white and require interventions. CLDs differ in their risk for TPs. DISCLOSURES: No relevant relationships by Prakash Acharya, source=Web Response No relevant relationships by Momcilo Durdevic, source=Web Response No relevant relationships by Stephen Jesmajian, source=Web Response No relevant relationships by Ashutossh Naaraayan, source=Web Response No relevant relationships by Abhishek Nimkar, source=Web Response No relevant relationships by Seema Singh, source=Web Response

ES19.03 RCT's on Malignant Pleural Effusion Talc Pleurodesis Managment

This talk will focus on 2 recently completed multicentre RCT's in talc pleurodesis for malignant pleural effusions; IPC plus trial (NEJM 2018) and the TAPPS trial (in submission). A summary of these 2 trials is below: IPC Plus - Methods: Over a period of 4 years, we recruited patients with malignant pleural effusion at 18 centers in the United Kingdom. After the insertion of an indwelling pleural catheter, patients underwent drainage regularly on an outpatient basis. If there was no evi- dence of substantial lung entrapment (nonexpandable lung, in which lung expansion and pleural apposition are not possible because of visceral fibrosis or bronchial ob- struction) at 10 days, patients were randomly assigned to receive either 4 g of talc slurry or placebo through the indwelling pleural catheter on an outpatient basis. Talc or placebo was administered on a single-blind basis. Follow-up lasted for 70 days. The primary outcome was successful pleurodesis at day 35 after randomization. Results: The target of 154 patients undergoing randomization was reached after 584 patients were approached. At day 35, a total of 30 of 69 patients (43%) in the talc group had successful pleurodesis, as compared with 16 of 70 (23%) in the placebo group (hazard ratio, 2.20; 95% confidence interval, 1.23 to 3.92; P=0.008). No significant be- tween-group differences in effusion size and complexity, number of inpatient days, mortality, or number of adverse events were identified. No significant excess of blockages of the indwelling pleural catheter was noted in the talc group. Conclusions: Among patients without substantial lung entrapment, the outpatient administration of talc through an indwelling pleural catheter for the treatment of malignant pleural effusion resulted in a significantly higher chance of pleurodesis at 35 days than an indwelling catheter alone, with no deleterious effects. (Funded by Becton Dickinson; EudraCT number, 2012-000599-40.) TAPPS - Methods We recruited patients with malignant pleural effusion from 17 United Kingdom hospitals over 5 years. On an open-label basis, patients were randomly assigned to receive either 4g talc poudrage at thoracoscopy under conscious sedation, or chest tube insertion under local anesthetic followed by 4g talc slurry. Follow-up lasted for six months. The primary outcome was pleurodesis failure rate three months after randomization, defined as the need for further pleural intervention during follow-up. Secondary outcomes including mortality and cost-effectiveness were also assessed. Results The target of 330 patients was reached after 583 were approached. At three months, pleurodesis failure rate was 36/161 (22%) with poudrage and 38/159 (24%) with slurry (adjusted odds ratio (OR) 0.91, 95% confidence interval (CI) 0.54-1.55, p=0.74). No statistically significant differences were noted in any secondary outcome. Numbers of adverse events were similar between groups. Using a standard threshold, poudrage had a 36% probability of being cost-effective. Conclusions In patients with malignant pleural effusion, there appears to be no additional clinical or cost-effectiveness benefit to choosing talc poudrage at physician-led thoracoscopy over talc slurry through chest tube. (Funded by the United Kingdom National Institute for Health Research). Pleural effusion, Talc pleurodesis, Malignant pleural effusion

Survival in patients with malignant pleural effusion undergoing talc pleurodesis

ObjectivesRecent observations indicate a potential survival benefit in patients with malignant pleural effusion (MPE) who achieve successful pleurodesis in comparison to patients who experience effusion recurrence post pleurodesis. This study aimed to explore this observation using two datasets of patients with MPE undergoing talc pleurodesis. Materials and MethodsDataset 1 comprised patients who underwent talc pleurodesis at Oxford Pleural Unit for MPE. Dataset 2 comprised patients enrolled in the TIME1 clinical trial. Pleurodesis success was defined as absence of need for further therapeutic procedures for MPE in the three months following pleurodesis. Data on various clinical, laboratory and radiological parameters were collected and survival was compared according to pleurodesis outcome (success vs. failure) after adjusting for the aforementioned parameters. ResultsDataset 1 comprised 60 patients with mean age 74.1±10.3 years. The most common primary malignancies were mesothelioma, breast and lung cancer. 29 patients (48.3%) achieved pleurodesis. The adjusted odds ratio (aOR) for poor survival with pleurodesis failure was 2.85 (95% CI 1.08–7.50, =p 0.034).Dataset 2 comprised 259 patients from the TIME1 trial. The mean age was 70.8±10.3 and the most common primary malignancies were mesothelioma, lung and breast cancer. Pleurodesis was successful in 205 patients (79%). aOR for poor survival was 1.62 (95% CI 1.09–2.39, p = 0.015). ConclusionAchieving pleurodesis seems to impart a survival benefit in patients with MPE. Further studies are required to explore factors that may contribute to this phenomenon and to address the difference in survival between pleurodesis and indwelling pleural catheter interventions.

An improved method of delivering a sclerosing agent for the treatment of malignant pleural effusion.

BackgroundMalignant pleural effusion (MPE) is a devastating sequela associated with cancer. Talc pleurodesis is a common treatment strategy for MPE but has been estimated to be unsuccessful in up to 20–50% of patients. Clinical failure of talc pleurodesis is thought to be due to poor dispersion. This monograph reports the development of a foam delivery system designed to more effectively coat the pleural cavity.MethodsC57BL/6 mice were injected with Lewis lung carcinoma (LL/2) cells intrapleurally to induce MPE. The mice then received either normal saline (NS) control, foam control (F), talc slurry (TS, 2 mg/g) or talc foam (TF, 2 mg/g). Airspace volume was evaluated by CT, lungs/pleura were collected, and percent fibrosis was determined.ResultsThe TF group had significantly better survival than the TS group (21 vs 13.5 days, p < 0.0001). The average effusion volume was less in the talc groups compared to the control group (140 vs 628 μL, p < 0.001). TF induced significant lung fibrosis (p < 0.01), similar to TS. On CT, TF significantly (p < 0.05) reduced loss of right lung volume (by 30–40%) compared to the control group. This was not seen with TS (p > 0.05).ConclusionsThis report describes using a novel talc foam delivery system for the treatment of MPE. In the LL/2 model, mice treated with the TF had better survival outcomes and less reduction of lung volume than mice treated with the standard of care TS. These data provide support for translational efforts to move talc foam from animal models into clinical trials.

La thoracoscopie médicale en pratique pneumologique : expérience du CHU de Liège

The incidence of pleural disease continues to increase worldwide. Medical thoracoscopy remains the standard method for exploration of the pleural cavity. We report the retrospective evaluation, the efficacy and the observed complications in 1024 medical thoracoscopies undertaken in the University Hospital of Liège between 2000 and 2017. In total, 100 pneumothoraces and 400 benign and 501 malignant pleural diseases were identified. The main indication for thoracoscopy remains the diagnosis of an exudative, lymphocytic pleural effusion of unknown aetiology after thoracocentesis. The diagnostic sensibility of thoracoscopy was 99.2% in distinguishing benign from malignant pleural disease. Talc pleurodesis was performed in 69.5% of the total population and in 66.1% of pleural effusions or thickening. Failure of pleurodesis was observed in 11% of the patients with recurrent pneumothorax and in 7.8% of neoplastic pleural effusion. We report a mortality of 0.6% in the 30 days post procedure, long duration of drainage in 8.3% and serious complications in 4.7%. In 22/1024 (2.1%) thoracoscopic evaluation was not feasible because of dense pleural fibrosis. Medical thoracoscopy is a safe, well-tolerated procedure with high accuracy in the diagnostic and therapeutic management of pleural disease.

Hubungan Nilai PH Cairan Pleura dengan Hasil Pleurodesis pada Penderita Efusi Pleura karena Keganasan

Background: Pleural effusion is a frequent complication of advanced stage are obtained in patients with malignancy. Shortness of breath at rest and decreased exercise tolerance are major functional limitations for patients with cancer who develop extensive pleural effusion. Pleural fluid drainage followed by a pleurodesis can reduce the symptoms of shortness of breath and prevent pleural fluid reaccumulation. Unfortunately, pleurodesis attempts fail in 10 to 40% of patients with recurrent pleural fluid and shortness of breath. Low pleural fluid pH can be used as a marker for increased metabolic activity of tumors in intrapleura, and is associated with increasing tumor, and can predict the failure of pleurodesis. The purpose of this study was to prove association between low pleural fluid pH value with failure pleurodesis in patients pleural effusion malignancy. Method: This is an observational study with cross sectional design that is the analysis conducted at Hospital Dr Soetomo in patients pleural effusion malignancy were subjected to pleurodesis for 6 months. Total 11 patients who meet the inclusion and exclusion criteria. Result: The mean value obtained pleural fluid pH 7,3±0,2, based on logistic regression analysis obtained low pleural fluid pH is not significant association with failure of pleurodesis, as shown from the significant value generated wald test is 0,116 where the value is above 0,05. Conclusion: Low pleural fluid pH is not significant association with failure of pleurodesis.

Thoracic Ultrasound as an Early Predictor of Pleurodesis Success in Malignant Pleural Effusion

Malignant pleural effusion (MPE) is common and imposes a significant burden on patients and health-care providers. Most patients require definitive treatment, usually drainage and chemical pleurodesis, to relieve symptoms and prevent fluid recurrence. Thoracic ultrasound (TUS) can identify the presence of pleural adhesions in other clinical scenarios, and could therefore have a role in predicting long-term pleurodesis success or failure in MPE. Patients undergoing chest tube drainage and talc slurry pleurodesis for symptomatic MPE were recruited to a prospective observational cohort pilot study assessing whether TUS findings pre-talc and post-talc instillation predicted treatment outcome. Participants underwent TUS examination immediately before, and 24 h after talc slurry administration to derive pleural adherence scores for the affected hemithorax. The recorded TUS scans were additionally scored by two independent assessors blinded to the patient's clinical status. The primary outcome was pleurodesis success at 1-month and 3-month follow-up. Eighteen participants were recruited to the pilot study. Participants who suffered pleurodesis failure had a lower pleural adherence score at 24 h post-talc instillation than those who were successful (difference of 6.27; 95% CI, 3.94-8.59). TUS examination was acceptable to patients, while TUS scoring was highly consistent across all assessors (intraclass correlation coefficient, 0.762; 95% CI, 0.605-0.872). A TUS-derived pleural adherence score may facilitate early prediction of long-term outcomes following chemical pleurodesis, with implications for personalized care and decision making in MPE. Further research is needed to evaluate this novel finding. ClinicalTrials.gov; No. NCT02625675; URL: www.clinicaltrials.gov.