Lung cancer survival rates significantly improve with early detection. Particularly, early-stage lung cancer with tumors 2cm or smaller can enhance not only survival but also post-surgery quality of life through precision surgeries that maximize lung function preservation. In the past, extensive surgeries that removed an entire lobe or one lung were commonly performed, leading to decreased lung function, breathing difficulties, and exercise limitations.

With the recent expansion of low-dose chest computed tomography (CT) screenings, precision surgeries that avoid unnecessary resections and preserve normal lung tissue are increasing. A representative surgery is segmentectomy, which involves resecting only the 'segment,' a unit of the lobe, preserving 5-10% more lung function. It is particularly effective for patients with early-stage lung cancer of 2cm or smaller, resulting in less breathing difficulty and quicker return to daily life. Professor Son Jong-bae of the Thoracic Surgery Department at Kyung Hee University Hospital at Gangdong explained, "Segmentectomy is a precision surgery that protects the patient's respiratory function and quality of life beyond cancer removal."

Recent studies have confirmed that segmentectomy shows no difference in survival and recurrence rates compared to lobectomy, establishing it as a standard surgery. Wedge resection or subsegmentectomy, which further reduce the resection scope, have also been introduced, allowing for greater preservation of lung function. These surgeries must be precisely applied based on the tumor's size, location, and characteristics. Most are conducted as minimally invasive surgeries using thoracoscopy, resulting in less pain, bleeding, and minimal scarring. The combination of robotic surgery, 3D imaging, and micro-manipulation technology has enhanced precision and stability, enabling personalized treatment for patients.

Lung cancer surgery does not end with cancer removal. Post-surgery, regular follow-up examinations, lung function recovery training, and lifestyle management must be combined to maintain long-term health. Without adequate management, there is an increased risk of breathing difficulties or dependence on oxygen therapy, making continuous management essential.

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