Breathomics: May It Become an Affordable, New Tool for Early Diagnosis of Non-small-cell Lung Cancer? An Exploratory Study on a Cohort of 60 Patients

Overview

Journal Interdiscip Cardiovasc Thorac Surg

Publisher Oxford University Press

Specialties Cardiology & Vascular Diseases
General Surgery
Pulmonary Medicine

Date 2024 Sep 3

PMID 39226187

Authors

Debora Brascia

Giulia De Iaco

Teodora Panza

Francesca Signore

Graziana Carleo

Wenzhe Zang

Ruchi Sharma

Pamela Riahi

Jared Scott

Xudong Fan

Giuseppe Marulli

Affiliations

Soon will be listed here.

Abstract

Objectives: Analysis of breath, specifically the patterns of volatile organic compounds (VOCs), has shown the potential to distinguish between patients with lung cancer (LC) and healthy individuals (HC). However, the current technology relies on complex, expensive and low throughput analytical platforms, which provide an offline response, making it unsuitable for mass screening. A new portable device has been developed to enable fast and on-site LC diagnosis, and its reliability is being tested.

Methods: Breath samples were collected from patients with histologically proven non-small-cell lung cancer (NSCLC) and healthy controls using Tedlar bags and a Nafion filter attached to a one-way mouthpiece. These samples were then analysed using an automated micro portable gas chromatography device that was developed in-house. The device consisted of a thermal desorption tube, thermal injector, separation column, photoionization detector, as well as other accessories such as pumps, valves and a helium cartridge. The resulting chromatograms were analysed using both chemometrics and machine learning techniques.

Results: Thirty NSCLC patients and 30 HC entered the study. After a training set (20 NSCLC and 20 HC) and a testing set (10 NSCLC and 10 HC), an overall specificity of 83.3%, a sensitivity of 86.7% and an accuracy of 85.0% to identify NSCLC patients were found based on 3 VOCs.

Conclusions: These results are a significant step towards creating a low-cost, user-friendly and accessible tool for rapid on-site LC screening.

Clinical Registration Number: ClinicalTrials.gov Identifier: NCT06034730.

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