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Review

The Role of Hyperthermic Intrathoracic Chemotherapy (HITHOC) in Thoracic Tumors

Department of Thoracic Surgery, Fondazione IRCCS San Gerardo dei Tintori, 20900 Monza, Italy
*
Author to whom correspondence should be addressed.
Cancers 2024, 16(14), 2513; https://doi.org/10.3390/cancers16142513
Submission received: 5 June 2024 / Revised: 27 June 2024 / Accepted: 6 July 2024 / Published: 11 July 2024

Abstract

:

Simple Summary

Hyperthermic intrathoracic chemotherapy (HITHOC) is an intraoperative and topical administration of chemotherapeutic drugs with simultaneous warming of the thoracic cavity. This procedure was first described by Spratt in 1980 as a thermal transfusion infiltration system, performed on canine models to treat malignant effusions of metastatic abdominal cancers. The main tumors causing malignant pleural effusion, which have been seen to benefit from hyperthermic intrathoracic chemotherapy, are mesothelioma, thymic malignancies and lung cancer: despite the high prevalence of MPE in patients with metastatic breast and ovarian cancers, there are still inadequate data on the use of HITHOC as a treatment option for these malignancies.

Abstract

Pleural mesothelioma (PM) is a rare but aggressive thoracic tumor with a poor prognosis. Multimodal treatment—including induction chemotherapy, aggressive surgical resection, radiotherapy and immunotherapy in selected cases—currently represents the best therapeutic option. Single-center studies advocate hyperthermic intrathoracic chemotherapy (HITHOC) during surgical resection as an additional therapeutic option, although its impact on post-operative morbidity and survival has not yet been evaluated on a larger scale. HITHOC can be applied not only in the case of mesothelioma, but also in the case of thymoma with pleural involvement or—in very selected cases—in patients with secondary pleural metastases. Despite favorable outcomes and reduced clinical risks, there is no uniform approach to HITHOC, and a wide variety of indications and technical applications are still reported. Based on available data, HITHOC seems to offer a clear benefit in regard to overall survival of all mesothelioma patients; however, multicenter randomized controlled trials are required to validate and standardize this approach. The aim of this review is to focus on the present role of HITHOC in thoracic tumors with pleural involvement as well as on future challenges, particularly in the light of possible combined therapy of thoracic tumors still presenting poor prognoses.

1. Introduction

Pleural malignancies and thoracic neoplasms involving pleura currently represent a hard challenge for clinicians and surgeons for reasons of disease aggressiveness, rapid inauspicious evolution, poor prognoses and severe general clinical conditions. Hyperthermic intrathoracic chemotherapy (HITHOC), which was first introduced at the end of the 1990s, is an intraoperative administration of chemotherapeutic drugs with simultaneous warming of the thoracic cavity. The main application of HITHOC worldwide is the treatment of malignant pleural mesothelioma, which often occurs with pleural effusion: several studies demonstrated the synergetic effect of HITHOC and surgical resection in terms of less post-operative morbidity and better survival. Thymic malignancies and lung cancer have also been proven to benefit from HITHOC as adjuvant treatment, but only in strictly selected patients: there is still a lack of data on the use of HITHOC as a treatment option for patients affected by metastatic breast and ovarian cancer with pleural involvement.
This review aims to provide an overview on the present role of HITHOC in the field of multimodality treatments of thoracic tumors with pleural involvement, focusing on principal features, techniques, current applications and future perspectives and challenges.

2. Malignant Pleural Effusions: Therapeutic Approach and Framework

Malignant pleural effusion (MPE) is the accumulation of fluid containing neoplastic cells in the thoracic cavity: it is a quite common manifestation and complication of advanced tumors, associated with high morbidity and mortality rates of 37% at 30 days and 77% at 1 year [1].
The development of MPE is an expression of advanced-stage carcinoma with poor prognosis, severely affecting the clinical status and the quality of life of patients.
An MPE develops as a result of increased production of the pleural fluid and decreased re-absorption, which may be due to direct neoplastic infiltration and consequent absorption by the lymphatic system removal or to local inflammation and increased capillary permeability resulting from neoplastic involvement of the pleural surface [2]. It has been demonstrated that neoplastic patients—presenting with pleural effusions—show high serum and plasma levels of vascular endothelial growth factor (VEGF), which is the most important angiogenic factor produced by neoplastic cells, promoting vascular permeability, endothelial cell migration and tumor metastatic progression [3].
Pleural effusion can be the first manifestation of pleural mesothelioma (PM) or can be secondary to other malignancies: lung and breast cancer are the most common tumors that metastasize to the pleura in men and women, respectively, following by Hodgkin/non-Hodgkin lymphoma representing the most common cause of pleural effusion in young adults [4]. Fifteen percent of patients with non-small-cell lung cancer (NSCLC) present MPE at diagnosis, and 50% of these patients will eventually develop malignant pleural effusion [5,6].
MPE is a widespread clinical condition, affecting more than 150,000 people in the USA and 50,000 in the UK each year: it is estimated that about 15% of people affected by advanced cancer will develop pleural effusion because of pleural tumor infiltration [2,7,8].
Patients with MPE usually complain of dyspnea, cough and chest pain, and it could also be associated with weight loss and asthenia: the severity of symptoms correlates with the amount of pleural effusion.
The primary goal in the approach of MPE is establishing a diagnosis and improving clinical status and the quality of life by relieving symptoms, especially respiratory ones: thoracentesis and placement of thoracic drainages are diagnostic and palliative maneuvers and allow cytological analysis of the fluid for diagnosis to improve dyspnea and cough, to monitor the re-accumulation of the effusion and to assess for non-expandable lungs. Chemical pleurodesis is a palliative option, consisting in the delivery of talc into the thoracic cavity to allow fusion of parietal and visceral pleura, thus preventing fluid re-accumulation: it can be administered as talc slurry (suspension made from talc and saline solution) through a chest tube or as talc poudrage during thoracoscopy. Parietal and visceral pleural apposition is indispensable to obtain pleurodesis, so in the case of incomplete lung re-expansion, the latest evidence-based guideline from the American Thoracic Society in 2018 recommended the positioning of an indwelling pleural catheter (IPC), a tunneled drainage that can be positioned in out-patients designed to stay in place for longer periods [9].
During the past year, several perioperative or intraoperative intra-cavitary therapies have been proposed to improve the loco-regional effect of surgery. The rationale is to administer cytotoxic agents in the pleural cavity and to reach the microscopically remaining tumor cells, where a direct and more efficient effect can be achieved, limiting the systemic adverse effects. In addition to chemotherapy, antiseptic povidone, photodynamic therapy and immunotherapies have been used [10,11,12,13]. However, although several studies described and tested the efficacy of intrapleural injection of chemotherapy agents as adjuvant treatment in the management of MPE in terms of greater pathological response and improvement in survival, the results are still based on low-quality retrospective data, and intracavitary treatments are recommended to be used within a clinical trial.
The potential and promising benefits of this technique are to enhance the local cytotoxic effect after debulking surgery with less systemic toxicity and improving clinical status, quality of life and time of disease-free survival.

3. Historic Background and First Experiments: What Do We Currently Know?

Hyperthermic intrathoracic chemotherapy (HITHOC) is an intraoperative and topical administration of chemotherapeutic drugs with simultaneous warming of the thoracic cavity. The concept of hyperthermic intra-cavity chemotherapy was initially proposed in the peritoneum (hyperthermic intraperitoneal chemotherapy, HIPEC) to treat metastatic abdominal tumors as a coadjuvant treatment of extensive surgical resection with cytoreductive intent, with the purpose of improving survival. This procedure was first described by Spratt in 1980 as a thermal transfusion infiltration system, performed on canine models to treat malignant effusions of metastatic abdominal cancers [14]. Since then, HIPEC has been increasingly used and has achieved an important role in the multimodal management and treatment of primary and secondary peritoneal tumors. The technique consists in administering chemotherapy agents into the peritoneal cavity using the principle of the peritoneal-plasma barrier, which limits the absorption of drugs from the peritoneal cavity into the blood, improving the local action and reducing systemic toxicity [15]. The elevated temperature of fluid administration (41 to 43 °C)—which has a synergistic effect with several chemotherapy agents enhancing their absorption—creates vascular stasis of vascular tumor microcirculation, resulting in greater destruction of neoplastic cells [16,17,18]. Intrathoracic chemotherapy was first described in 1955 by Bateman and colleagues, who reported local intra-cavitary injection of triethylene thiophosphoramide into the pleural, abdominal or pericardial cavity after removal of fluid effusion in ambulatory patients. They found better results in malignant pleural effusion as compared to patients presenting ascites, probably because of anatomical features of the thoracic and abdominal cavities and different neoplastic nodules and fluid distribution. Bateman et al. concluded that local injection of chemotherapy not only permitted the administration of higher doses of drug than via the systemic route, but also produced a better local pathological response and effect on distant disease. Moreover, they did not find any early clinical side effects (which allows this procedure to be performed on out-patients) or any changes in tumor-free tissue following phosphoramide intracavity administration [19]. In 2008, Matsuzaki et al. first treated a group of six patients affected by malignant pleural mesothelioma at advanced stages with cisplatin-based intrapleural perfusion hyperthermo-chemotherapy, at 43 degrees for 120 min. They collected tumor cells from pleural effusions pre- and postperfusion and measured the apoptotic index, detecting increased apoptosis after perfusion with a peak after 24 h [20]. Subsequent in vitro experiments demonstrated the antineoplastic effect of only hyperthermia on mesothelioma cells for temperatures higher than 45 °C: instead, the combination of hyperthermia with cytostatic agents (mostly cisplatin) increased the cytotoxic effect also at lower temperatures (42 °C) [21]. Furthermore, Larisch and colleagues proved the considerable efficacy of HITHOC in terms of local toxicity, performing ex vivo and in vitro experiments to evaluate both concentration and penetration of chemotherapy agents in lung tissue after decortication, incubation with cisplatin and hyperthermic exposure (at 37, 42 or 45 °C for 60 min) [22]. The maximum penetration depth of cisplatin was found to be 7.5 mm, while a previous ex vivo study estimated the penetration depth of cisplatin in non-decorticated lung tissue to be 3–4 mm at 42 °C [21]. They also evaluated survival rates of PM cells at different depths, comparing decorticated tissue samples and non-decorticated ones, finding that more tumor cells were killed at greater depths after decortication [22] (Figure 1 and Figure 2).

4. Features and Techniques

It has been demonstrated that the combination of hyperthermia and intrapleural cisplatin (200 mg/m2 of body surface area (BSA), 120 min, 43 °C) induces significant apoptosis of neoplastic cells [22]. The apoptosis curve begins to rise immediately after perfusion and peaks 24 h after the intrathoracic administration. The mechanisms by which antineoplastic agents work in this context to induce apoptosis are mitochondrial depolarization, phosphatidylserine translocation and caspase activation. On the other hand, hyperthermia determines protein denaturation of the cancer cells, inhibits RNA synthesis, modifies the DNA synthesis, promotes mitosis arrest, increases reactive oxygen species (ROS) production and the number of unstable lysosomes; it increases membrane permeability and improves membrane transport, modifying cell metabolism, the excretion and the pharmacokinetics of drugs, thereby increasing the cytotoxicity of chemotherapeutic agents [23]. It should also be noted that cancer cells are more thermosensitive, and thus undergo apoptosis at temperatures between 41 and 43 °C (unlike healthy cells): several treatments administrated at temperatures ranging from 40 to 44 degrees have been proven to be cytotoxic for cells in a microenvironment with low pH and low oxygen partial pressure, which are typical of tumor tissue, for the reason of poor blood perfusion [24,25]. Considering all these aspects, the synergistic action that chemotherapy and hyperthermia play in determining the increased local cytotoxicity of neoplastic cells becomes clear. Furthermore, the combination of two cytotoxic drugs also seems to further enhance the effectiveness of the procedure: the most frequently used agent is cisplatin, which can be used in combination with doxorubicin or mitomycin C with hyperthermia at temperature ranges between 41 and 43 °C, with standard time for infusion of 60–90 min across several studies. In vitro experiments demonstrated that washing with cisplatin at a concentration of 0.05 mg/mL for 60 min at 42 °C ensures a tissue concentration of 2.4 µg/mL with a penetration depth of 3–4 mm to 7.5 mm in decorticated lung tissue [21,22]. These data are encouraging and could prove the potential of HITHOC as an adjuvant treatment of pleural malignancies in combination with debulking surgery, especially for thymic advanced tumors and mesothelioma, whose most widespread treatment is pleurectomy decortication. Surgical treatment in these patients fails to be radical because of the characteristics and stage of disease, and therefore has the sole objective of minimizing the disease burden: this is why hyperthermic intrathoracic chemotherapy can enhance the surgical action of increasing local cytotoxicity by acting on the residual superficial neoplastic cells. Even if higher doses of chemotherapy agents need to be applied, it has been observed that the systemic absorption of the drug remains very low, which makes HITHOC a relatively safe and particularly suitable treatment for patients with multiple comorbidities who would be especially affected by the systemic toxicity of cisplatin: in serum samples, the concentration of cisplatin, which is administered in the pleural cavity, reached only a fraction of about 2% with a peak occurring 60 min after the procedure [21].

5. Benefits and Side Effects

In a 2017 systematic review and meta-analysis considering 21 articles, Zhao et al. reported no perioperative or HITHOC-associated (30-day or 90-day) mortality [26]. Nevertheless, hyperthermic intrathoracic chemotherapy does have potential common side effects due to both chemotherapy agents and hyperthermic application. Patients can complain of pain and discomfort in the treated area, particularly in the days following the procedure, associated with fatigue sometimes lasting several weeks; nausea and vomiting as well as anemia, leukopenia, thrombocytopenia, increased risk of infections and bleeding; kidney and liver toxicity leading to potential dysfunction or damage are induced by chemotherapy and seem to be dose-dependent risks; hyperthermia can lead to changes in electrolyte levels, which need to be carefully monitored and corrected; respiratory complications, dyspnea, pulmonary edema or pleural effusion may occur as a direct consequence of local treatment.
Ashraf-Kashani et al. reported significant hemodynamic instability induced by hyperthermic agents resulting in vasodilatation, cardiac warming and compression of mediastinal vessels evolving sometimes into cardiac asystole during the HITHOC procedure [27]. Similarly, Kerscher and colleagues reported unexpected side effects including high pressure of the intrathoracic and central venous system and the potential risk of systemic hyperthermia during cytoreduction surgery and HITHOC and a rate of 10% of an impairment of coagulation in post-operative laboratory analysis [28].
Currently, pleurectomy-decortication or extra-pleural pneumonectomy are the major strategies of treatment for malignant pleural mesothelioma: other therapies, such as radiotherapy and systemic chemotherapy, are combined with surgery as perioperative adjuncts in order to enhance the therapeutic effect of surgery, as well as to control the relapse of disease. A 2017 systematic review and meta-analysis demonstrated that patients affected by mesothelioma can benefit from HITHOC treatment either intra-operatively or post-operatively. They analyzed five studies, which compared the therapeutic results of patients who received hyperthermic intrapleural chemotherapy during cytoreductive surgery or extra-pleural pneumonectomy to that of patients who did not receive HITHOC: both overall survival and disease-free survival were longer in the patients treated additionally with hyperthermic intrapleural chemotherapy [13,26,29,30,31,32].
Other subsequent studies consistently show the role and efficacy of HITHOC in the setting of multimodality treatment of malignant pleural mesothelioma, demonstrating significantly improved overall survival and disease-free survival combining cytoreductive surgery with hyperthermic intrapleural chemotherapy; this suggests relevant benefits of HITHOC compared to surgery alone: the median overall survival was found to range from 11 to 75 months and disease-free survival from 7.2 to 57 months, appearing to be superior to surgical treatment alone (overall survival 5–36 months and disease-free interval 12.1–21 months). Moreover, a higher dose of hyperthermic intrathoracic chemotherapy was associated with an improvement in overall survival compared with a lower dose (18–31 months versus 6–18 months) [33,34]. A more recent meta-analysis by Järvinen and colleagues could not definitively conclude that all mesothelioma patients benefitted from HITHOC treatment, although they found a statistically significant effect in favor of HITHOC, which is particularly notable in patients with the epithelioid subtype of PM, which responds better to the combined treatment [35] (Table 1).
Some studies have shown that HITHOC is also used in the multimodal treatment of advanced-stage thymic tumors, which are frequently and belatedly misdiagnosed and often confused with pleural dissemination, especially when not associated with myasthenia gravis; moreover, even locally advanced thymomas are characterized by a high rate of pleural or pericardial relapses. Surgery has always been considered the gold standard of thymoma treatment, even in the case of local intrathoracic dissemination or relapses in the context of multidisciplinary protocols with chemotherapy and/or radiotherapy. In the early 1990s, the introduction of HITHOC as a coadjuvant to surgery changed the treatment prospects of these patients with stage IVa thymomas or thymoma pleural recurrences, giving hope in terms of less toxicity than systemic chemotherapy and providing better local disease control in patients [46]. In 2001, Refaely et al. investigated the role of HITHOC in 15 patients affected by stage IVa thymoma or thymic carcinoma treated by surgery with positive resection margins (R1/R2) followed by HITHOC (cisplatin at a dosage between 100 and 200 mg/m2 at about 43 °C for 1 h). They did not describe any complications or platinum-related toxicity and reported survival rates of 90% at 3 years from surgery and 70% at 5 years [47]. Ried et al. published their experience on patients with stage III and IVa thymomas who underwent post-operative HITHOC: 89% of the patients were alive without disease with a median survival of 25 months [39]. In 2017, Maury et al. published a study on 19 patients operated for thymoma pleural recurrences receiving HITHOC protocol with cisplatin and mitomycin perfused for 60 min at about 42 °C. They reported seven patients (37%) with tumor recurrence with a median disease-free survival of 53 months, while the median local disease-free interval was 41 months; median overall survival was 63 months and 1- and 5-year survival rates were 93% and 86%, respectively [48]. The largest publication group on this topic was made by Aprile and colleagues in 2020: it is a retrospective study of a 12-year experience comparing outcomes of surgery + HITHOC and surgery alone for the treatment of thymoma pleural recurrences. The HITHOC protocol consisted of cisplatin and epirubicin at 42 °C for 60 min: they found similar post-operative morbidity and no procedure-related mortality, similar survival rates, but significantly different local disease-free intervals [49] (Table 2).
Lastly, some authors have also started to propose the application of cytoreductive surgery followed by HITHOC to improve local pleural control and overall survival for selected patients affected by advanced NSCLC. Shigemura et al. first published a pilot study with five patients on HITHOC and pleuro-pneumonectomy for patients with advanced lung cancer and carcinomatous pleuritis (cN0-1, M0-1). They first performed surgery for pleural biopsies and thoracoscopic intrapleural perfusion hyperthermic chemotherapy (TIPHC): subsequently, they performed cytological examination of pleural effusion to confirm the negative and after 2 weeks from TIPHC, pleuro-pneumonectomy was scheduled. The mean survival time observed was 19 months, and the longest was 32 months [55]. In 2019, Migliore and colleagues conducted a systematic review to evaluate the efficacy of debulking surgery and HITHOC as a treatment for selected patients with NSCLC and malignant pleural effusion [56,57]. They selected four articles with a total of 21 patients who had undergone debulking surgery and HITHOC: surgery ranged from wedge resection to pneumonectomy and pleurectomy with HITHOC was performed in all patients for 1 h; the median survival was 18 months (range 1–74 months) with 62% of patients alive at 1 year and 28.5% alive at 2 years. Due to insufficient data, they were not able to perform a meta-analysis and concluded that despite some encouraging and stimulating evidence, the effectiveness of the procedure for selected patients with advanced lung cancer was still weak, needing some randomized controlled trials to clearly evaluate the benefit of a new therapeutic approach (Table 3).

6. Conclusions

From the first experiments to more recent data, numerous studies on the use of intrathoracic chemotherapy have been carried out, but most of them are case series, feasibility studies or retrospective studies with small numbers of patients. The main tumors causing malignant pleural effusion, which have been seen to benefit from hyperthermic intrathoracic chemotherapy, are mesothelioma, thymic malignancies and lung cancer: despite the high prevalence of MPE in patients with metastatic breast and ovarian cancers, there are still inadequate data on the use of HITHOC as a treatment option for these malignancies [61] (Table 4). In the last few decades, hyperthermic intrathoracic chemotherapy has been reported to be a feasible and safe procedure and represents a promising therapeutic option in the context of a multimodality approach to thoracic-spread malignancies involving the pleura. Since patients affected by pleural malignancy have a poor prognosis with reduced expectation of life and serious general clinical conditions, all the therapeutic instruments available are palliative. HITHOC allows better loco-regional tumor control, enhancing surgery treatment and improving disease-free and overall survival of patients with pleural malignancies. HITHOC has been proven to be a feasible and effective local procedure in the context of multimodal treatment strategies for PM, offering significant advantages in terms of survival and disease control compared to standard treatments alone; on the other hand, its role has still not been discussed in the latest guidelines of the task force of the ERS/EACTS/ESTS/ESCRO on treatment of PM [23]. The feasibility, efficacy and safety of this procedure have already been demonstrated with both ex vivo and in vivo studies, but there is still considerable divergence and heterogeneity of thought and clinical practice among clinicians approaching pleural malignancies. Currently, there is a lack of consensus and no guidelines regarding clinical protocols and techniques: there are still great differences in surgical aspects and indications, patient selection, the choice of antitumoral drugs perfused and their dosage, temperature, time of the perfusion and type of perfusion machine. The challenge of the coming years will be to design and conduct prospective multicenter randomized studies on large series of patients with pleural malignancies, in order to optimize and standardize the treatment protocols of HITHOC and expand its clinical application.

Author Contributions

Conceptualization, F.D. and F.P.; methodology, M.C.S. and S.V.; validation, E.M.C., A.C. and L.L.; formal analysis, F.R. and E.P.; investigation, A.T.; writing—original draft preparation, F.D., M.C.S. and F.P.; writing—review and editing, F.P.; supervision, F.P. All authors have read and agreed to the published version of the manuscript.

Funding

This research received no external funding.

Institutional Review Board Statement

Not applicable.

Informed Consent Statement

Not applicable.

Data Availability Statement

Data available on request.

Conflicts of Interest

The authors declare no conflicts of interest.

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Figure 1. Limited epithelioid mesothelioma (right side) amenable of pleurectomy/decortication.
Figure 1. Limited epithelioid mesothelioma (right side) amenable of pleurectomy/decortication.
Cancers 16 02513 g001
Figure 2. Extended sarcomathoid mesothelioma with lymph nodes involvement (right side) not amenable of pleurectomy/decortication.
Figure 2. Extended sarcomathoid mesothelioma with lymph nodes involvement (right side) not amenable of pleurectomy/decortication.
Cancers 16 02513 g002
Table 1. Studies on HITHOC application for MPM [33].
Table 1. Studies on HITHOC application for MPM [33].
AuthorYearStudy TypePatientsSurgery + HITHOCFollow-Up, Survival Rates and Oncological Outcomes
Monneuse [36]2003Prospective17PP, P/D, WedgeMean follow-up time: 89 months
Median OS: 18 months
Richards [37]2006Prospective44EPDMedian OS: 13 months
Median DFI: 7.2 months
van Sandick [29]2008Retrospective20EPP, P/DMean follow-up time: 89 months
Median OS: 11 months
Median DFI: 8 months
Tilleman [31]2009Prospective92EPPMean follow-up time: 31 months
Median OS: 13.1 months
Median DFI: 15.3 months
Zellos [38]2009Prospective29EPPMedian OS: 20 months
Median DFI: 16 months
Ried [39]2013Prospective8EPD/PDMean follow-up time: 17 months
Median OS: 18 months
Median DFI: 4.5 months
Sugarbaker [30]2013Retrospective72EPP/PDMean follow-up time: 54 months
Median OS: 35.3 months
Median DFI: 27.1 months
Ishibashi [40]2015Prospective4P/DMedian OS: 17.2 months
Median DFI: 12.5 months
Migliore [41]2015Prospective6P/D, Wedge, EPDMedian OS: 21.5 months
Işik [32]2016Retrospective36EPP, P/DMedian OS: 27 months
Ambrogi [42]2018Retrospective49P/D, WedgeMean follow-up time: 69 months
Median OS: 22 months
Luzzi [43]2018Prospective41EPDMedian OS: 25 months
Burt [44]2018Prospective104EPP, P/DMean follow-up time: 51 months
Median OS: 20.3 months
Median DFI: 10.7 months
Patel [45]2019Retrospective5EPP, EPDMean follow-up time: 9 months
Median OS: 15 months
Median DFI: 24 months
Klotz [34]2019Retrospective71P/DMedian OS: 16.1 months
DFI, disease-free interval; OS, overall survival; EPP, extrapleural pneumonectomy; EPD, extended pleurectomy decortication; PD, pleurectomy-decortication; PP, partial pleurectomy.
Table 2. Studies on HITHOC application for thymoma IV stage and pleural recurrences [46].
Table 2. Studies on HITHOC application for thymoma IV stage and pleural recurrences [46].
Author (Year)PatientsDiseaseSurgery + HITHOCFollow-Up, Survival Rates and Oncological OutcomesHITHOC-Related Side Effects (%)
Yellin (2001) [50]7Thymoma IV stageEPP, P/D, WedgeMean follow-up: 60.2 months
5 alive without disease 74.3%
1 (14.3)
Refaely (2001) [47]10Thymoma IV stageEPP, P/D3-year OS: 90%
5-year OS: 70%
3 (30.0)
De Bree (2002) [51]3Pleural recurrencesEPP, P/DMean follow-up: 18 months
OS: 100%, contralateral recurrence at 13 months 33.3%
1 (33.3)
Ried (2013) [52]8Thymoma IV stageP/DMean follow-up: 22 months
OS: 87.5%
DFS: 87.5% (1 relapse after 13 months)
0
Yellin (2013) [53]31Pleural recurrences +
Thymoma IV stage
PP, P/D, WedgeMean follow-up: 62 months
5-year OS 67%, 10-year OS 56%
5-year DFS = 48%, 10-year DFS = 18%
-
Yu (2013) [54]4Thymoma IV stage +
Pleural recurrences
Cytoreduction surgeryFollow-up: 1–4 years
DFS = 100%
2 (50.0)
Ried (2014) [39]9Thymoma IV stageP/DMean follow-up: 29.3 months
Median OS: 25 months
DFS: 89%, Recurrence rate: 22.7%
0
Maury (2017) [48]19Pleural recurrencesPP, P/D, WedgeMedian follow-up: 39 months
Median OS: 63 months
1-year OS: 93%, 5-year OS: 86%
Median DFS: 53 months
3 (15.9)
Aprile (2020) [49]27Pleural recurrencesPP, P/DMean follow-up: 70.9 months
Mean OS: 153.1 months, 10-year OS: 77%
2 recurrence rate: 44.4%
0
DFS, disease-free survival; OS, overall survival; EPP, extrapleural pneumonectomy; PD, pleurectomy-decortication; PP, partial pleurectomy.
Table 3. Studies on HITHOC application for MPE from local advanced lung cancer.
Table 3. Studies on HITHOC application for MPE from local advanced lung cancer.
AuthorYearStudy TypePatients TreatmentDiseaseMedian Survival Time
Shigemura [55]2003Prospective5HITHOC + SurgeryLocal advanced lung cancer19 months (32 months the longest)
Monneuse [36]2003Retrospective3HITHOC + SurgeryLocal advanced lung cancer33 months
Kimura [58]2010Prospective5HITHOC + SurgeryLocal advanced lung cancer25 months
Işık [32]2013Retrospective19HITHOC + SurgeryLocal advanced lung cancer+
Secondary neoplasm
15 months
Moon [59]2015Retrospective10HITHOCLocal advanced lung cancer + breast cancer +
ovarian cancer
3–7-month recurrence-free rates: 86.9 and 73.9%
Migliore [56]2015Retrospective2HITHOC + SurgeryLocal advanced lung cancer21 months
Yi [60]2016Retrospective33HITHOC + SurgeryLocal advanced lung cancerOverall survival at 3 years 38.6%
Table 4. Studies on HITHOC application for MPE from secondary neoplastic tumors.
Table 4. Studies on HITHOC application for MPE from secondary neoplastic tumors.
AuthorYearStudy TypePatients DiseaseLocal Control Rate Assessed
Fracchia [62]1970Retrospective138Breast cancerYes
Markman [63]1984Retrospective4Breast/ovarian cancerYes
Contegiacom [64]1987Retrospective21Breast cancerYes
Rusch [65]1991Prospective46Breast/ovarian cancer -
Kan [66]1993Retrospective67Breast cancer-
Aasebo [67]1997Prospective30Breast/ovarian cancer Yes
Shoji [68]2002Prospective22Breast cancer-
Mitamura [69]2009Case report1Ovarian cancerYes
Jones [70]2010Prospective15Breast/ovarian cancer-
Singh [71]2014Retrospective4Ovarian cancerYes
Feng [72]2017Retrospective80Breast cancerYes
Jun [73]2017Case report1Ovarian cancer-
Zhang [74]2021Randomized controlled trial84Breast cancer-
The efficacy of the HITHOC was assessed and reported in seven studies (169 patients with breast cancer and 8 with ovarian cancer). The local control rates of malignant pleural mesothelioma were 59.1% for breast cancer patients and 87.5% for ovarian cancer at 4 weeks after treatment [61].
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Danuzzo, F.; Sibilia, M.C.; Vaquer, S.; Cara, A.; Cassina, E.M.; Libretti, L.; Pirondini, E.; Raveglia, F.; Tuoro, A.; Petrella, F. The Role of Hyperthermic Intrathoracic Chemotherapy (HITHOC) in Thoracic Tumors. Cancers 2024, 16, 2513. https://doi.org/10.3390/cancers16142513

AMA Style

Danuzzo F, Sibilia MC, Vaquer S, Cara A, Cassina EM, Libretti L, Pirondini E, Raveglia F, Tuoro A, Petrella F. The Role of Hyperthermic Intrathoracic Chemotherapy (HITHOC) in Thoracic Tumors. Cancers. 2024; 16(14):2513. https://doi.org/10.3390/cancers16142513

Chicago/Turabian Style

Danuzzo, Federica, Maria Chiara Sibilia, Sara Vaquer, Andrea Cara, Enrico Mario Cassina, Lidia Libretti, Emanuele Pirondini, Federico Raveglia, Antonio Tuoro, and Francesco Petrella. 2024. "The Role of Hyperthermic Intrathoracic Chemotherapy (HITHOC) in Thoracic Tumors" Cancers 16, no. 14: 2513. https://doi.org/10.3390/cancers16142513

APA Style

Danuzzo, F., Sibilia, M. C., Vaquer, S., Cara, A., Cassina, E. M., Libretti, L., Pirondini, E., Raveglia, F., Tuoro, A., & Petrella, F. (2024). The Role of Hyperthermic Intrathoracic Chemotherapy (HITHOC) in Thoracic Tumors. Cancers, 16(14), 2513. https://doi.org/10.3390/cancers16142513

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