The pain experienced by participants after minimally invasive chest surgery (VATS) can make it difficult for them to take deep breaths, which can lead to problems with lung function. This can cause serious problems such as lung collapse, low oxygen levels, and infections, making recovery longer and more difficult. Managing pain well after surgery is important to prevent these problems and speed up recovery. In this study, we aimed to compare two pain relief methods, Erector Spinae Plane Block (ESP) and Paravertebral Block (PVB), in participants who underwent VATS. We will look at which method causes the smallest change in lung function before and after surgery.