Assumptions: In the scenario of treatment of clinical stage I Not Small Cells Lung Cancer of the last decades, surgery has been the gold standard of treatment, with the emerging of two different techniques (segmentectomy, both anatomical, both wedge resection, and lobectomy) as main approaches. Purpose of the study: Since the outcomes after the applying of these two techniques have been inconstant in terms of oncological and post-surgical outcomes, this retrospective cohort study, concerning patients treated for clinical stage 1 (a, b, or c) NSCLC between 2016 and 2021 in AOPD, Azienda Ospedaliera di Padova, aims to explore the outcomes (in terms of overall survival, recurrence free survival, 5-years-survival and other indicators) after receiving the two different surgical approaches, segmentectomy and lobectomy. Materials and methods: The study is conducted analyzing 55 patients receiving segmentectomy and 212 lobectomy, stratifying them according to prognostically-relevant histological (such as tumors’ visceral pleural invasion status, as determined by pathological analysis of the surgical specimen) and radiological characteristics, such as the diameter of the lesion or the CT mean value in Hounsfield units. Results: Even if a correlation between VPI and Overall Survival could not be statistically determined (p-value= 0.665), a tendency of VPI to correlate with recurrence of disease was evidenced (with a p-value= 0.07). Regarding the segmentectomy and lobectomy techniques employed, they had comparable Overall Survival (p-value of the HR= 0.854) and 5-years RFS (p-value= 0.64) were obtained. Conclusions: Aligning to the previous studies on the topic, VPI shows to correlate with recurrence of disease, whereas this association can not be highlighted in terms of OS. Moreover, showing comparable results to lobectomy, segmentectomy is a viable surgical technique for early stage NSCLC.
Scenario: Nel panorama del trattamento dello stadio clinico I del Tumore polmonare non a piccole cellule degli ultimi decenni, la chirurgia ha svolto un ruolo chiave nella terapia, con l’emergere di due diverse tecniche (segmentectomia, sia anatomica, che resezione apicale, e lobectomia) come approcci principali. Scopo dello studi: Dal momento che gli outcomes dopo l’applicazione di queste due tecniche sono stati incostanti in termini di risultati oncologici e post-operatori, questo studio retrospettivo di coorte, che riguarda pazienti trattati per stadio clinico I (a, b, o c) di NSCLC fra il 2016 e il 2021 in AOPD, Azienda Ospedaliera di Padova, si propone di esplorare gli outcomes (in termini di sopravvivenza totale, sopravvivenza libera da recidiva, 5-anni di sopravvivenza, e altri indicatori) dopo essere stati sottoposti a due diversi approcci chirurgici, segmentectomia e lobectomia. Materiali e metodi: Lo studio è stato condotto analizzando 55 pazienti che hanno ricevuto la segmentectomia e la lobectomia, stratificandoli in base a istologie prognosticamente-rilevanti (come lo status di di invasione della pleura viscerale da parte del tumore, come determinato dalle analisi anatomopatologiche del pezzo operatorio) e caratteristiche radiologiche, come il diametro della lesione o il valore medio in unità Hounsfield alla TC. Risultati: Sebbene non sia stato possibile determinare statisticamente una correlazione tra VPI e sopravvivenza globale (OS) (p-value= 0.665), è stata evidenziata una tendenza di VPI a correlarsi con la recidiva di malattia (p-value= 0.07). Per quanto riguarda le tecniche di segmentectomia e lobectomia impiegate, sono stati ottenuti valori di sopravvivenza globale (p-value= 0.854) e RFS a 5 anni (p-value=0.64) comparabili. Conclusioni: In linea con gli studi precedenti sull'argomento, VPI mostra una correlazione con la recidiva di malattia, mentre questa associazione non può essere evidenziata in termini di OS. Inoltre, mostrando risultati comparabili alla lobectomia, la segmentectomia è una tecnica chirurgica valida per il NSCLC in stadio iniziale.
Role of pleural invasion in non-small cell lung cancer: therapeutic implications and long-term prognosis.
MORO, ALESSANDRA
2024/2025
Abstract
Assumptions: In the scenario of treatment of clinical stage I Not Small Cells Lung Cancer of the last decades, surgery has been the gold standard of treatment, with the emerging of two different techniques (segmentectomy, both anatomical, both wedge resection, and lobectomy) as main approaches. Purpose of the study: Since the outcomes after the applying of these two techniques have been inconstant in terms of oncological and post-surgical outcomes, this retrospective cohort study, concerning patients treated for clinical stage 1 (a, b, or c) NSCLC between 2016 and 2021 in AOPD, Azienda Ospedaliera di Padova, aims to explore the outcomes (in terms of overall survival, recurrence free survival, 5-years-survival and other indicators) after receiving the two different surgical approaches, segmentectomy and lobectomy. Materials and methods: The study is conducted analyzing 55 patients receiving segmentectomy and 212 lobectomy, stratifying them according to prognostically-relevant histological (such as tumors’ visceral pleural invasion status, as determined by pathological analysis of the surgical specimen) and radiological characteristics, such as the diameter of the lesion or the CT mean value in Hounsfield units. Results: Even if a correlation between VPI and Overall Survival could not be statistically determined (p-value= 0.665), a tendency of VPI to correlate with recurrence of disease was evidenced (with a p-value= 0.07). Regarding the segmentectomy and lobectomy techniques employed, they had comparable Overall Survival (p-value of the HR= 0.854) and 5-years RFS (p-value= 0.64) were obtained. Conclusions: Aligning to the previous studies on the topic, VPI shows to correlate with recurrence of disease, whereas this association can not be highlighted in terms of OS. Moreover, showing comparable results to lobectomy, segmentectomy is a viable surgical technique for early stage NSCLC.| File | Dimensione | Formato | |
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https://hdl.handle.net/20.500.12608/86915