Is Pleurectomy/Decortication Superior to Extrapleural Pneumonectomy for Patients with Malignant Pleural Mesothelioma? A Single-Institutional Experience

Lung decortication for spontaneous hydropneumothorax in post COVID patients: A case series

Hydropneumothorax is an abnormal collection of air and fluid in the pleural space. As it is a rare complication of COVID-19 pneumonia, we report a case series of spontaneous hydropneumothorax converted to pus collection that was resistant to medical management and treated as decortication and pleurectomy.

Meta-analysis of survival after extrapleural pneumonectomy (EPP) versus pleurectomy/decortication (P/D) for malignant pleural mesothelioma in the context of macroscopic complete resection (MCR)

OBJECTIVE

We reviewed the available literature on patients with MPM undergoing either extrapleural pneumonectomy (EPP) or pleurectomy/decortication (P/D).

METHODS

Original research studies that evaluated long-term outcomes of P/D versus EPP were identified, from January 1980 to February 2022. The 30-days and 90-day mortality, along with the 1-, 2-, 3-, 5-year survival, the median overall survival, the macroscopic complete resection (MCR) rate, and the complications were calculated according to both a fixed and a random effect model. The Q and I² statistic were used to test for heterogeneity among the studies. Sensitivity analysis was performed including only studies that incorporated the MCR concept.

RESULTS

Eighteen studies were included, incorporating a total of 4,852 patients treated with EPP and P/D. The 30-day mortality was significantly higher in the EPP group (OR: 2.79 [95% CI 1.30, 6.01]; p = 0.009). The median overall survival was higher in the P/D group (WMD:-4.55 [-6.05, -3.04]; p < 0.001). No differences were found regarding the 90-day mortality, MCR rate, and the 1-, 2-,3-, 5-year survival between the EPP and P/D groups. These findings were validated by the sensitivity analysis. The incidence of atrial fibrillation, hemorrhage, pulmonary embolism, air leak, and reoperation was significantly increased in the EPP group (p < 0.05).

CONCLUSIONS

The present meta-analysis indicates that P/D is associated with enhanced outcomes regarding 30-day mortality, median overall survival, and complications. The P/D approach should be preferred when technically feasible. However, the procedure of choice should be decided based on the goal of MCR in the safest approach for the patient.

Current treatment strategies in malignant pleural mesothelioma with a treatment algorithm

Malignant pleural mesothelioma (MPM) is arare disease with apoor prognosis. The main therapeutic options for MPM include surgery, chemotherapy, and radiation therapy (RT). Although multimodality therapy has been reported to improve survival, not every medically operable patient is able to undergo all recommended therapy. With improvements in surgical techniques and systemic therapies, as well as advancements in RT, there has been apotential new paradigm in the management of this disease. In this review, we discuss the current literature on MPM management and propose afunctional treatment algorithm.

Progress of malignant mesothelioma research in basic science: A review of the 14th international conference of the international mesothelioma interest group (iMig2018)

Here we summarize the most recent update of mesothelioma research in basic science presented at the 14^th iMig2018 international conference. The symposium of basic science track mainly focused on the drivers of mesothelioma initiation and progression, molecular pathogenesis, and perspectives on potential therapeutic approaches. This review covers several promising fields including strategies efficiently inhibiting YAP/TAZ functions or their critical downstream targets, heparanase inhibitors, RAN depletion, and MIF/CD74 inhibitors that may be developed as novel therapeutic approaches. In addition, targeting mesothelioma stem cells by depleting M2-polarized macrophages in tumor microenvironment or blocking Tnfsf18 (GITRL)-GITR signalling might be translated into therapeutic modalities in mesothelioma treatment.

Updated meta-analysis of survival after extrapleural pneumonectomy versus pleurectomy/decortication in mesothelioma

OBJECTIVE

We reviewed the available literature on patients with MPM undergoing either extrapleural pneumonectomy (EPP) or pleurectomy/decortication (P/D).

METHODS

Original research studies that evaluated long-term outcomes of P/D versus EPP were identified, from January 1990 to July 2018. The 30 and 90 days mortality, along with the 1-, 2-, 3-, 5-year survival, the median overall survival and the complications were calculated according to both a fixed and a random effect model. The Q statistics and I² statistic were used to test for heterogeneity among the studies.

RESULTS

Fifteen studies were included, incorporating a total of 1672 patients treated with EPP and 2236 treated with P/D. The 30-day mortality was significantly higher in the EPP group [OR 3.24 (95% CI 1.70, 6.20); p < 0.001]. The median overall survival was significantly increased in the P/D group [WMD - 4.20 (- 5.66, - 2.74); p < 0.001]. No significant differences were found regarding the 90-day mortality and the 1-, 2-, 3-, 5-year survival between the EPP and P/D groups. The incidence of postoperative atrial fibrillation, hemorrhage, empyema, bronchopleural fistula and air leak was significantly increased in the EPP group (p < 0.05).

CONCLUSIONS

The present meta-analysis indicates that P/D is associated with enhanced outcomes regarding 30-day mortality, median overall survival, and complications. The P/D approach, should, therefore be preferred when technically feasible. However, the decision regarding the procedure of choice should be made on the basis of the disease status and the surgeon's experience. Well-designed, randomized studies, comparing EPP to P/D, are necessary to further assess their clinical outcomes.

Extrapleural pneumonectomy: still indicated?

The optimal treatment of malignant pleural mesothelioma (MPM) has not yet been established and is still under investigation. Surgery is one of the pillars in the multimodality approach with the purpose of removing as much as visible tumor as possible and to relieve symptoms. To date, two major surgical procedures are available for removal or debulking of MPM that is considered to be resectable: [extended (e)] pleurectomy/decortication (P/D) and extrapleural pneumonectomy (EPP). Historically, EPP was regarded as the only way to achieve a macroscopic complete resection. However, in the last years, there is a shift in literature towards (e)P/D as the preferred surgical procedure whenever possible as several retrospective studies and meta-analyses showed a similar or lower long-term survival and higher perioperative mortality and postoperative morbidity in patients who been treated with EPP. On the other hand, no randomized-controlled trials regarding surgical treatment with (e)P/D or EPP exist and therefore level A evidence favoring one surgical procedure is lacking. In this review we provide a nuanced and well-considered answer to the question whether EPP is still indicated in the surgical treatment of MPM.