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A study of efficacy and safety of tranexamic acid versus iodopovidone in pleurodesis via pigtail catheter in management of recurrent pleural effusion

Abstract

Background

Researches to detect the ideal agent for pleurodesis are still continuous; iodopovidone is one of the best agents for pleurodesis that are commonly used. Tranexamic acid is also considered by many authors as a safe, cheap, and effective agent for pleurodesis.

Results

Group I (patients subjected to pleurodesis using tranexamic acid) had a higher complete response with a success rate 88% compared with 76% for group II (patients subjected to pleurodesis using iodopovidone) at the end of the study in 12 weeks. Complications were nearly equal in both groups. Chest pain, hypotension, and fever were the most common reported complications.

Conclusions

Tranexamic acid and iodopovidone were found to be effective alternative agents for pleurodesis with low cost and minimal complications.

Background

Pleural effusion is the most common manifestation of pleural diseases with different etiologies ranging from cardiopulmonary disorders to inflammatory or malignant diseases [1]. Lung and breast cancer account for 75% of malignant pleural effusions, and 10% occurs with massive effusion with complete opacification of the hemi-thorax requiring urgent evaluation and treatment [2].

Chest tube thoracotomy is still the treatment of choice for pneumothorax and effusions [3], but it is considered an invasive procedure with potential morbidity and mortality thus the use of pigtail catheter can be considered [4].

Chemical pleurodesis is reported as the best treatment for recurrent pleural effusions when the underlying cause cannot be corrected. A large number of pleural irritants had been tried, but the research to detect the ideal, effective, safe, inexpensive, and readily available agent for pleurodesis is still continuous. Talc is one of the most commonly used agents, as it is highly effective and widely available [5, 6]. However, systemic embolization of talc has been reported, so there are serious concerns about its safety. Sclerosing agents such as tranexamic acid and iodopovidone were used for obliteration of the pleural cavity and cessation of the process of exudation. They are effective, safe, cheap, and readily available [7, 8].

Aim of the work

Evaluation of efficacy (success rate), safety (side effects), and tolerability of tranexamic acid and iodopovidone as chemical agents for pleurodesis, in the management of recurrent pleural effusion using pigtail catheter.

Methods

This prospective randomized study included 50 patients with unilateral recurrent pleural effusion of different etiologies divided into 2 equal groups.

Group I: Included 25 patients subjected to pleurodesis using tranexamic acid.

Group II: Included 25 patients subjected to pleurodesis using iodopovidone.

The study was done in Chest Department, Tanta University Hospital during the period from May 2016 to April 2017.

Inclusion criteria

Moderate to large amount of unilateral recurrent pleural effusion, cooperative patient, hemodynamic stability with no bleeding, or coagulation disorders.

Exclusion criteria

Complicated para-pneumonic effusions or frank empyema, patients with encysted pleural effusions.

Method of the study

All patients included in the study were subjected to complete history taking, general, and local examination, routine laboratory investigation, and diagnostic thoracocentesis, radiographic evaluation by plain chest X-rays (PA and lateral views), CT chest and chest ultrasound when needed, small-bore pigtail catheter was inserted percutaneously under local anesthesia, pleurodesis, once the pigtail in the pleural space drained 150 ml or less per day with full lung expansion confirmed by chest X-ray, injection of pleurodesis solutions was done as follows:

Group I: 4 ampules (Kapron, Amoun Company) including 500 mg tranexamic acid for each, diluted in 50 ml of normal saline solution, and 10 ml of 2% lidocaine were injected intra-pleural via pigtail catheter [7].

Group II: 20 ml of 10% povidone iodine (Betadine, Mundi-pharma Company), diluted in 80 ml of saline solution and 10 ml of 2% lidocaine were injected intra-pleural via pigtail catheter [8].

The catheter was clamped for 6 h during which the patient was turned in all directions, supine, prone, right, left lateral decubitus, and sitting position so pleurodesis solution came in contact with all pleural surfaces [8].

Complete response is defined as a symptomatic improvement of dyspnea with complete radiographic resolution of the pleural effusion, partial response as symptomatic improvement with radiological recurrence of pleural effusion that did not require additional thoracentesis treatment failure is defined as recurrent pleural effusion that required thoracentesis [9].

Follow up: The patients were followed up at 2 weeks intervals clinically and radiologically for 12 weeks

Statistical analysis

Data analysis using IBM SPSS software package (version 20)

Results

The mean age of patients in group I was 55.68 ± 11.14 years, and in group II was of 59.80 ± 7.70 years with no statistically significant difference (Table 1).

Table 1 Comparison between the studied groups as regard the demographic data

Dyspnea and chest pain were the common complaint. The majority of effusions were right sided (64.0% in group I) and (72.0% in group II). Three mesothelioma patients were non-dyspneic but suffer from severe agonizing chest pain requiring pleurodesis (Tables 2 and 3). The underlying pathologies of pleural effusion in the studied groups revealed that 24 patients had pleural effusion due to isolated hepatic hydrothorax without ascites or with mild ascites (10 in group I and 14 in group II), and 26 patients had malignant pleural effusion (15 in group I and 11 in group II). Metastatic breast cancer was the commonest cause of malignant pleural effusion followed by metastatic lung cancer and metastatic ovarian carcinoma (Table 4).

Table 2 Comparison between the studied groups as regard the main presenting symptoms
Table 3 Comparison between the studied groups as regard the side effusion
Table 4 Comparison between the studied groups as regard the underlying pathology

Regarding the size of the pigtail catheter used in research, significant increase in favor to the 12 French sizes in each group (96% in group I and 84% in group II ) (Table 5).

Table 5 Comparison between the groups as regard the size of the pigtail catheter used

There were no significant differences between the 2 studied groups as regards to the period of placement of pigtail catheter prior to as well as after pleurodesis (Table 6).

Table 6 Comparison between the studied groups regarding duration of pigtail catheter placement before, and after pleurodesis

The final follow-up of pleurodesis in both groups showed that the success rate was more in group I than group II (88.0% vs 76.0%) (Table 7).

Table 7 Comparison of the final follow up (after 12 weeks) of the different studied groups

Minor complications were founded with tranexamic acid pleurodesis as hypotension in 12%, pleuritic chest pain in 8%, shock and fever in 4%. While in iodopovidone pleurodesis, pleuritic chest pain in 12%, hypotension in 8%, empyema, fever, and shock in 4% (Table 8).

Table 8 Comparison between the groups as regard complications of pleurodesis

Discussion

Management of recurrent pleural effusions is considered one of the most difficult medical problems. Symptoms are caused by fluid which re-accumulates rapidly after aspiration [10]. Survival of patients with malignant pleural effusion may extend for months or even years. Therefore, the aim of treatment should be directed to relieve the distress and improve the quality of life of those patients besides the management of the primary disease [7].

The repeated aspiration to relieve dyspnea is both physically and psychologically traumatic to the patient and burden to the physician, so a more definitive management strategy must be undertaken to solve this problem, this strategy included tube thoracotomy, insertion of pleural catheter with or without pleurodesis, medical thoracoscopy, or video-assisted thoracoscopic surgery with pleurodesis [11].

Chemical pleurodesis is one of the most accepted treatments for recurrent pleural effusions. The choice of the best sclerosing agent, which is determined by the efficacy, safety, accessibility of the agent, its cost, ease of administration, and the number of administrations to achieve complete response [12].

In the present study, 50 patients were subjected to thorough investigations and they were classified into 2 equal groups 25 patients for each. The origin of effusion in group I was malignant pleural effusion in 15 patients (60%) and hepatic hydrothorax in 10 patients (40%), and in group II was malignant pleural effusion in 11 patients (44%) and hepatic hydrothorax in 14 patients (56%) as seen in Table 4. Hepatic hydrothorax as well as malignant pleural effusion is recurrent and rapidly accumulative, so many clinicians are convinced to place indwelling pleural catheters (IPCs) for non-malignant effusions like hepatic hydrothorax, sometimes spontaneous mechanical pleurodesis occurs, sometimes chemical pleurodesis with sclerosing agent is needed [13,14,15,16,17,18,19,20].

In this study, as regard the size of pigtail catheter, different diameters were used (10 F, 12 F, and 14 F) with a significant increase in favor to the 12 French sizes in each group (96% in group I and 84% in group II) as seen in Table 5. This size was the most available in market at the time of the research.

Shoji T et al. [11] continue to support the use of small-bore chest drainage and sclerotherapy, although there was no significant difference between large and small-bore catheter. Agarwal et al. [8] and Aziz et al. [21] concluded that the use of standard size pigtail catheters (8.5 F) is usually very successful in draining the pleural fluid, less time consumption, lower cost, and bedside technique makes it superior to the conventional chest tube.

In our study, pleurodesis was performed when the daily drainage volume was less than 150 ml/day, X-ray chest was done to make sure that no pleural fluid was left and the underlying lung was re-expanded. In accordance to our research, Martinez et al. [22] mentioned that pleurodesis is performed after radiographical confirmation of complete lung re-expansion. Also Shoji T et al. [11] made pleurodesis when chest tube fluid drainage decreased to less than 150 ml/day and the lung was fully re-expanded on chest X-ray.

In this study, as regard days of placement of pigtail after pleurodesis, the mean durations of the inserted tube post pleurodesis were 1.20 in group I, and 1.0 in group II, as seen in Table 6. Heffner et al. [23] showed that the chest tubes were removed from most patients when drainage of pleural fluid decreased to less than 100 ml/day after pleurodesis. In other patients, the chest tube was routinely removed several hours after instillation of doxycyline. Tomlinson and Sahn [24] said that the chest drain is usually left in position for 24-72 h, but it may be left longer if the drainage of fluid continues.

On a search for the cheapest and most available sclerosing agent with the least side effects, the present study aimed to evaluate the effectiveness of tranexamic acid and iodopovidone as chemical agents for pleurodesis in recurrent pleural effusion.

In group 1, we used 4 ampules (2000 mg of tranexamic acid) for each patient and the patients were followed up at 2 weeks intervals for 12 weeks, 22 patients showed complete response with a success rate of 88%, and 3 patients (12%) show failure of pleurodesis, the first case was malignant mesothelioma which failed due to failure of lung expansion and thickening of the pleura as shown by CT chest, and the other two cases were hepatic hydrothorax (Figs. 1 and 2).

Fig. 1
figure1

a Plain chest X-ray PA view showing massive right-sided pleural effusion before drainage. b Plain chest X-ray PA view showing evacuation of the effusion with the pigtail pleural catheter seen in place. c Plain chest X-ray PA view showing complete evacuation of the effusion after pleurodesis by iodopovidone (case 1)

Fig. 2
figure2

a Plain chest X-ray PA view showing massive left-sided pleural effusion before drainage. b Plain chest X-ray PA view showing evacuation of the effusion with the pigtail pleural catheter seen in place. c Plain chest X-ray PA view showing complete evacuation of the effusion after pleurodesis by tranexamic acid (case 2)

The success rate in the present study was higher than Eman et al. [25] study, as they achieved a success rate of 73.5%, but lower than EL-Bouhi et al. [7], as the success rate was 90%, their higher success rate may be due to higher dose used which was 10 ampoules (5000 mg of tranexamic acid).

The results in the present study were higher than the results of most of the other studies that use other chemical agent for pleurodesis. For example, Zimmer et al. [26] found a success rate of 65% on using bleomycin for pleurodesis, and Martínez et al. [22] achieved a success rate of 60-80% on using tetracycline for pleurodesis.

In our study, minor complications were founded with tranexamic acid pleurodesis as seen in Table 8 as hypotension in 12%, pleuritic chest pain in 8%, shock and fever in 4%.

In a study done by Bediwy and Galal [27], who investigated pigtail catheter insertion for draining pleural effusions of different etiologies. They evaluated success and complications of pigtail catheter insertion in 51 cases of pleural effusion. They recorded complications including chest pain at the site of insertion requiring analgesia (45.09), pneumothorax (19.6), blockade of the catheter (3.92), and infection (1.96). Blockade of the catheters and infection were associated with procedure failure.

The reported complications with different sclerosing agents are chest pain, fever, and cough, as seen in Janssen et al. [28].

In group II, we used 20 ml of 10% povidone iodine, diluted in 80 ml of saline solution and 10 ml of debocaine 2%. Regarding the doses of the pleurodetic agent, our study agreed with Agarwal et al. [8], who recommended the utilization of 20 ml of 10% iodo-povidone mixed with 80 ml normal saline solution.

In our study, the patients were followed up for12 weeks, 19 patients showed complete response, (the success rate 76%), and 6 patients show failure of pleurodesis (24%). The causes of failure in the first case were due to secondary bacterial infection and empyema, and intercostal tube was inserted via thoracoscope to drain the pus from the pleural space. Two cases were hepatic hydrothorax which failed due to massive transudative effusion due to loss of protein and fluid accumulate rapidly, one case showed accidental dislodgment of pigtail catheter, and two cases were malignant effusion.

These results were consistent with those of Carlos and his colleagues [29], who found that iodopovidone is one of the best sclerosing agents in recurrent effusions regardless the etiology, as it is effective, safe, inexpensive, and readily available. In 2004, Shaw and Agarwal [30] meta-analysis observational studies on the success rate and safety of chemical pleurodesis using iodopovidone revealed that its success rate ranged from 64.2 to 100%, with an overall success rate of 90.6%.

These results agreed with those of Ritesh et al. [31] who studied efficacy and safety of iodopovidone as a chemical pleurodesis for variety of indications in 256 patients, which included pleural effusions (157 patients), and pneumothorax (108 patients). The pleural effusions were mainly malignant effusions, and the pneumothorax was spontaneous, both primary (where the underlying lung is healthy) and secondary (where the pneumothorax occurs as a complication of some underlying pulmonary disease). There were no deaths related to chemical pleurodesis with iodopovidone.

Our results were consistent with those studies done by Dey et al. [32], who studied 38 patients with symptomatic malignant or recurrent pleural effusion and pneumothorax, had pleurodesis using iodopovidone. A complete response with no recurrence during follow-up was obtained in 34 patients (89.5%), and failure in 4 cases (10.5%) all failed cases had malignant pleural effusion.

In this work, minor complications were founded in iodopovidone pleurodesis as pleuritic chest pain (12%), hypotention (8%), empyema, fever and shock (4%), as seen in Table 8.

In a study done by Mohsen et al. [33] to compare the success, safety, and outcome of thoracoscopic talc poudrage (TTP) versus povidone iodine pleurodesis (PIP) through a thoracostomy tube in management of malignant pleural effusion due to metastatic breast cancer. Twenty-two received talc poudrage and 20 patients received pleurodesis by instilling povidone iodine through a thoracostomy tube. Talc was associated with severe pleuritic chest pain, fever, and longer hospital stay. Both groups achieved good symptom control.

Das et al. [34] reported that povidone iodine is equally effective and safe as talc, and may be preferred because of easy availability, low cost, and it can be used for recurrent pleural effusions. While in Helmy et al. [35] study, 20 patients with hepatic hydrothorax had pleurodesis using povoiodine in 8 patients, vibramycin in 6 patients, and talc slurry in other 6 patients. The outcome revealed that chemical pleurodesis was effective in the treatment of hepatic hydrothorax in 15/20 patients (75%), the success rate was 87.5% in patients treated by iodopovidone, 66.7% in vibramycin, and 66.7% in patients treated with talc slurry. However, a single case treated by talc slurry died of hepatocellular insufficiency 14 days following the procedure.

Conclusions

We concluded that tranexamic acid and iodopovidone were found to be an effective alternative agent for pleurodesis with low cost and minimal complications.

We recommend wider use of these cheap sclerosing agents instead of the costly one with the same results.

Availability of data and materials

All data generated or analyzed during this study are included in this published article [and its supplementary information files].

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Acknowledgements

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Funding

This study had no funding from any resource.

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Authors

Contributions

AHA was responsible for study design and final revision ASE shared in study design and was responsible for the practical part of the research, selection of cases, data collection and statistics, manuscript preparation, editing, and reviewing. All authors have read and approved the manuscript.

Corresponding author

Correspondence to Ayman S. El Dib.

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Ethics approval and consent to participate

The study protocol was approved from the research ethics committee of the Faculty of Medicine, Tanta University, with reference number (13532). A written consent form was obtained from every patient to participate in the research work after sufficient explanation before initiating the study.

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All participated patients signed an informed written consent form to publish the data with respect to the privacy of patients and confidentiality of the data as patients’ names were replaced by code numbers to confirm their privacy and the results of the study were used only for scientific purpose.

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The authors declare that they have no competing interests.

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Abd El Zaher, A.H., El Dib, A.S. A study of efficacy and safety of tranexamic acid versus iodopovidone in pleurodesis via pigtail catheter in management of recurrent pleural effusion. Egypt J Bronchol 14, 19 (2020). https://doi.org/10.1186/s43168-020-00016-z

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Keywords

  • Tranexamic acid
  • Iodopovidone
  • Pleurodesis
  • Pigtail catheter
  • Pleural effusion