• Medicina clinica · Aug 2020

    Analysis of solitary pulmonary nodule after surgical resection in patients with 18F-FDG positron emission tomography integrated computed tomography in the preoperative work-up.

    • Antonio Francisco Honguero Martínez, Raúl Godoy Mayoral, Marta Genovés Crespo, Cora Andrea Sampedro Salinas, Fernando Andrés Pretel, Ana García Vicente, Patricia López Miguel, Javier Callejas González, Carlos Eduardo Almonte García, María Peyró Sánchez, Ana María Del Rosario Núñez Ares, María Dolores García Jiménez, Claudia Rossana Rodríguez Ortega, Marta Lázaro Sahuquillo, Jesús Jiménez López, Pablo León Atance, and María Luisa Morales Serrano.
    • Servicio de Cirugía Torácica. Hospital General Universitario de Albacete, Albacete, España. Electronic address: tonyhonguero@yahoo.es.
    • Med Clin (Barc). 2020 Aug 25.

    IntroductionTo analyse clinicopathological characteristics of patients operated for pulmonary solitary nodule (PSN) and 18F-FDG integrated PET-CT scan after surgical resection.MethodologyRetrospective study on a prospective database of patients operated from January 2007 to October 2017 for PSN without preoperative diagnosis. Dependent variable was anatomopathological result (benign vs malignant) of PSN. Variables of the study were: age, sex, PET-CT uptake, SUVmax, smoking history, COPD, previous history of malignant disease, tumoral location, and tumour size on CT-scan.ResultsA total of 305 patients were included in this study, 225 (73.8%) men, 80 (26.2%) women, mean age = 63.9 (range 29-86 years), mean size PSN = 1.68 (s.d. .65 cm), benign = 46 (15.1%), malignant = 258 (84.6%), type of resection: pulmonary wedge = 151 (49.5%), lobectomy = 141 (46.2%), segmentectomy = 12 (3.9%), exploratory intervention = 1 (0.3%). Postoperative mortality was 1.9%. COPD = 50.8% cases, previous cancer disease = 172 cases (56.4%), smoking history = 250 cases (82.0%), positive PET = 280 cases (91.8%), PSN in upper pulmonary fields = 204 cases (66.9%), median SUVmax = 3.4 (range 0-20.7). Backward stepwise binary logistic regression model showed that age, SUVmax, previous malignant disease and female sex were independent risk factors with statistical significance (p < .05). Sensitivity, specificity, positive predictive value, negative predictive value, and diagnostic accuracy were 94.6%, 23.4%, 87.1%, 44.0%, and 83.6% respectively. There were 14 false negative cases (4.6%) and 36 false positive cases (11.8%).ConclusionsAge, SUVmax, previous malignant disease, and female sex were independent risk factors in our study. Each case should be individually evaluated in a multidisciplinary committee, and the patient's preferences or concerns should be kept in mind in decision-making. Surgical resection of PSN is not exempt from morbidity and mortality, even in sublobar or pulmonary wedge resection.Copyright © 2020 Elsevier España, S.L.U. All rights reserved.

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